1
|
Zhou K, Yan X, Oh SJ, Padilla-Rivera G, Kim HA, Cropek DM, Miljkovic N, Cai L. Hierarchically Patterned Self-Cleaning Polymer Composites for Daytime Radiative Cooling. NANO LETTERS 2023; 23:3669-3677. [PMID: 37079783 DOI: 10.1021/acs.nanolett.2c04069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Passive daytime radiative cooling (PDRC) has the potential to reduce energy demand and mitigate global warming. However, surface contamination from dust and bacterial buildup limits practical PDRC applications. Here, we develop a hierarchically patterned nanoporous composite (HPNC) using a facile template-molding fabrication method to integrate PDRC materials with self-cleaning and antibacterial functions. The HPNC design decouples multifunctional control into different characteristic length scales that can be optimized simultaneously. The nanoporous polymer matrix embedded with tunable fillers enables 7.8 and 4.4 °C temperature reduction for outdoor personal and building cooling, respectively, under intense solar irradiance. Meanwhile, a microscale pillar array pattern integrated into the HPNC enables superhydrophobicity with self-cleaning and antisoiling functions to mitigate surface contamination. Moreover, the surface coating of photocatalytic agents can generate photoinduced antibacterial effects. The scalable fabrication and multifunctional capabilities of our HPNC design offer a promising solution for practical PDRC applications with minimal maintenance needs.
Collapse
Affiliation(s)
- Kai Zhou
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Xiao Yan
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Seung J Oh
- U.S. Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois 61822, United States
| | - Gabriela Padilla-Rivera
- U.S. Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois 61822, United States
| | - Hyunjung A Kim
- U.S. Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois 61822, United States
| | - Donald M Cropek
- U.S. Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois 61822, United States
| | - Nenad Miljkovic
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Lili Cai
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| |
Collapse
|
2
|
Kim D, Sasidharanpillai A, Lee Y, Lee S. Self-Stratified Versatile Coatings for Three-Dimensional Printed Underwater Physical Sensors Applications. NANO LETTERS 2021; 21:6820-6827. [PMID: 34292754 DOI: 10.1021/acs.nanolett.1c01770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A new strategy for developing versatile nanostructured surfaces utilizing the swelling of polymers in solvents is described. The self-stratified coating on 3D printed acrylonitrile-butadiene-styrene (ABS) copolymers with nanoparticles enables mechanically durable superhydrophobic characteristics. Unlike other methods, it was capable to produce superhydrophobicity on complex 3D structured surfaces. Mechanically durable superhydrophobic coatings that can withstand an abrasion cycle were obtained. Partial embedding of the nanoparticles into the ABS surface due to the swelling and self-stratification is considered as the reason for the increased mechanical strength of the coating. Utilizing this idea, the original concept of power-free physical sensors responding to changes in temperature, pressure, and surface tension was proposed.
Collapse
Affiliation(s)
- Doeun Kim
- Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongnam 52851, Republic of Korea
| | - Arun Sasidharanpillai
- Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongnam 52851, Republic of Korea
- Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju, Gyeongnam 52828, Republic of Korea
| | - Younki Lee
- Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju, Gyeongnam 52828, Republic of Korea
| | - Seunghyup Lee
- Electronic Convergence Materials Division, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongnam 52851, Republic of Korea
| |
Collapse
|
3
|
Chan Y, Wu XH, Chieng BW, Ibrahim NA, Then YY. Superhydrophobic Nanocoatings as Intervention against Biofilm-Associated Bacterial Infections. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1046. [PMID: 33921904 PMCID: PMC8073257 DOI: 10.3390/nano11041046] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 02/07/2023]
Abstract
Biofilm formation represents a significant cause of concern as it has been associated with increased morbidity and mortality, thereby imposing a huge burden on public healthcare system throughout the world. As biofilms are usually resistant to various conventional antimicrobial interventions, they may result in severe and persistent infections, which necessitates the development of novel therapeutic strategies to combat biofilm-based infections. Physicochemical modification of the biomaterials utilized in medical devices to mitigate initial microbial attachment has been proposed as a promising strategy in combating polymicrobial infections, as the adhesion of microorganisms is typically the first step for the formation of biofilms. For instance, superhydrophobic surfaces have been shown to possess substantial anti-biofilm properties attributed to the presence of nanostructures. In this article, we provide an insight into the mechanisms underlying biofilm formation and their composition, as well as the applications of nanomaterials as superhydrophobic nanocoatings for the development of novel anti-biofilm therapies.
Collapse
Affiliation(s)
- Yinghan Chan
- Department of Life Sciences, School of Pharmacy, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Xun Hui Wu
- School of Postgraduate Studies, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Buong Woei Chieng
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (B.W.C.); (N.A.I.)
| | - Nor Azowa Ibrahim
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia; (B.W.C.); (N.A.I.)
| | - Yoon Yee Then
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University (IMU), Bukit Jalil, Kuala Lumpur 57000, Malaysia
| |
Collapse
|
4
|
Zhang W, Wang D, Sun Z, Song J, Deng X. Robust superhydrophobicity: mechanisms and strategies. Chem Soc Rev 2021; 50:4031-4061. [PMID: 33554976 DOI: 10.1039/d0cs00751j] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Superhydrophobic surfaces hold great prospects for extremely diverse applications owing to their water repellence property. The essential feature of superhydrophobicity is micro-/nano-scopic roughness to reserve a large portion of air under a liquid drop. However, the vulnerability of the delicate surface textures significantly impedes the practical applications of superhydrophobic surfaces. Robust superhydrophobicity is a must to meet the rigorous industrial requirements and standards for commercial products. In recent years, major advancements have been made in elucidating the mechanisms of wetting transitions, design strategies and fabrication techniques of superhydrophobicity. This review will first introduce the mechanisms of wetting transitions, including the thermodynamic stability of the Cassie state and its breakdown conditions. Then we highlight the development, current status and future prospects of robust superhydrophobicity, including characterization, design strategies and fabrication techniques. In particular, design strategies, which are classified into passive resistance and active regeneration for the first time, are proposed and discussed extensively.
Collapse
Affiliation(s)
- Wenluan Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China.
| | | | | | | | | |
Collapse
|
5
|
Lin Z, Wang Z, Zhang X, Diao D. Superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film. NANO RESEARCH 2021; 14:1110-1115. [PMID: 33250970 PMCID: PMC7685909 DOI: 10.1007/s12274-020-3158-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/29/2020] [Accepted: 10/04/2020] [Indexed: 05/19/2023]
Abstract
UNLABELLED The 2019 coronavirus disease (COVID-19) has affected more than 200 countries. Wearing masks can effectively cut off the virus spreading route since the coronavirus is mainly spreading by respiratory droplets. However, the common surgical masks cannot be reused, resulting in the increasing economic and resource consumption around the world. Herein, we report a superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film, with high-density edges of standing structured graphene nanosheets. The GNEC mask exhibits an excellent hydrophobic ability (water contact angle: 157.9°) and an outstanding filtration efficiency with 100% bacterial filtration efficiency (BFE). In addition, the GNEC mask shows the prominent photo-sterilize performance, heating up to 110 °C quickly under the solar illumination. These high performances may facilitate the combat against the COVID-19 outbreaks, while the reusable masks help reducing the economic and resource consumption. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (further details of electron cyclotron resonance (ECR) sputtering system, deposition of GNEC film, fabrication of GNEC mask, and characterization of the GNEC mask) is available in the online version of this article at 10.1007/s12274-020-3158-1.
Collapse
Affiliation(s)
- Zezhou Lin
- Institute of Nanosurface Science and Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, 518060 China
| | - Zheng Wang
- Shenzhen Anhio Medical Technology Co., Ltd, Shenzhen, 518110 China
| | - Xi Zhang
- Institute of Nanosurface Science and Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, 518060 China
| | - Dongfeng Diao
- Institute of Nanosurface Science and Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, 518060 China
| |
Collapse
|
6
|
A J, S Jayan J, Saritha A, A S S, Venu G. Superhydrophobic graphene-based materials with self-cleaning and anticorrosion performance: An appraisal of neoteric advancement and future perspectives. Colloids Surf A Physicochem Eng Asp 2020; 606:125395. [PMID: 32836883 PMCID: PMC7428693 DOI: 10.1016/j.colsurfa.2020.125395] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/23/2020] [Accepted: 08/02/2020] [Indexed: 11/17/2022]
Abstract
Lotus like materials having superhydrophobicity is attaining greater demand due to the possibility of molding them into different high end applications. The major issue related to self-cleaning superhydrophobic surfaces is their restricted mechanical properties. The development of nanotechnology has brought many advantages in the fabrication and properties of superhydrophobic surfaces and thus it enhanced the demand of superhydrophobic surfaces. Many scientific groups have studied and reported about the superhydrophobicity exhibited by graphene and its analogous derivatives. The fabrication of the devices having properties ranging from anti-sticking and self-cleaning to anti-corrosion and low friction is made possible by the incorporation of this wonderful two-dimensional material. This review focuses on the preparation and properties of graphene based superhydrophobic coating materials with special mention to the wide range of applications rendered by them.
Collapse
Affiliation(s)
- Jishnu A
- Department of Chemistry, School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India
| | - Jitha S Jayan
- Department of Chemistry, School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India
| | - Appukuttan Saritha
- Department of Chemistry, School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India
| | - Sethulekshmi A S
- Department of Chemistry, School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India
| | - Gopika Venu
- Department of Chemistry, School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India
| |
Collapse
|
7
|
Maghsoudi K, Vazirinasab E, Momen G, Jafari R. Advances in the Fabrication of Superhydrophobic Polymeric Surfaces by Polymer Molding Processes. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00508] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Khosrow Maghsoudi
- Department of Applied Sciences, University of Quebec in Chicoutimi (UQAC), 555, Boulevard de l’Université, Chicoutimi, Québec G7H 2B1, Canada
| | - Elham Vazirinasab
- Department of Applied Sciences, University of Quebec in Chicoutimi (UQAC), 555, Boulevard de l’Université, Chicoutimi, Québec G7H 2B1, Canada
| | - Gelareh Momen
- Department of Applied Sciences, University of Quebec in Chicoutimi (UQAC), 555, Boulevard de l’Université, Chicoutimi, Québec G7H 2B1, Canada
| | - Reza Jafari
- Department of Applied Sciences, University of Quebec in Chicoutimi (UQAC), 555, Boulevard de l’Université, Chicoutimi, Québec G7H 2B1, Canada
| |
Collapse
|
8
|
Hu S, Cao X, Reddyhoff T, Puhan D, Vladescu SC, Wang Q, Shi X, Peng Z, deMello AJ, Dini D. Self-Compensating Liquid-Repellent Surfaces with Stratified Morphology. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4174-4182. [PMID: 31889435 DOI: 10.1021/acsami.9b22896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Artificial liquid-repellent surfaces have recently attracted vast scientific attention; however, achieving mechanical robustness remains a formidable challenge before industrialization can be realized. To this end, inspired by plateaus in geological landscapes, a self-compensating strategy is developed to pave the way for the synthesis of durable repellent surfaces. This self-compensating surface comprises tall hydrophobic structural elements, which can repel liquid droplets. When these elements are damaged, they expose shorter structural elements that also suspend the droplets and thus preserve interfacial repellency. An example of this plateau-inspired stratified surface was created by three-dimensional (3D) direct laser lithography micro-nano fabrication. Even after being subjected to serious frictional damage, it maintained static repellency to water with a contact angle above 147° and was simultaneously able to endure high pressures arising from droplet impacts. Extending the scope of nature-inspired functional surfaces from conventional biomimetics to geological landscapes, this work demonstrates that the plateau-inspired self-compensating strategy can provide an unprecedented level of robustness in terms of sustained liquid repellency.
Collapse
Affiliation(s)
- Songtao Hu
- State Key Laboratory of Mechanical System and Vibration , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiaobao Cao
- Department of Chemistry and Applied Biosciences , ETH Zurich , Zurich 8093 , Switzerland
| | - Tom Reddyhoff
- Department of Mechanical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Debashis Puhan
- Department of Mechanical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Sorin-Cristian Vladescu
- Department of Mechanical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Qian Wang
- Department of Mechanical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| | - Xi Shi
- State Key Laboratory of Mechanical System and Vibration , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Zhike Peng
- State Key Laboratory of Mechanical System and Vibration , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Andrew J deMello
- Department of Chemistry and Applied Biosciences , ETH Zurich , Zurich 8093 , Switzerland
| | - Daniele Dini
- Department of Mechanical Engineering , Imperial College London , London SW7 2AZ , United Kingdom
| |
Collapse
|
9
|
Single-step plasma-induced hierarchical structures for tunable water adhesion. Sci Rep 2020; 10:874. [PMID: 31964899 PMCID: PMC6972901 DOI: 10.1038/s41598-019-56787-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/12/2019] [Indexed: 11/23/2022] Open
Abstract
Smart surfaces in nature have been extensively studied to identify their hierarchical structures in micro-/nanoscale to elucidate their superhydrophobicity with varying water adhesion. However, mimicking hybrid features in multiscale requires complex, multi-step processes. Here, we proposed a one-step process for the fabrication of hierarchical structures composed in micro-/nanoscales for superhydrophobic surfaces with tunable water adhesion. Hierarchical patterns were fabricated using a plasma-based selective etching process assisted by a dual scale etching mask. As the metallic mesh is placed above the substrate, it serves the role of dual scale etching masks on the substrate: microscale masks to form the micro-wall network and nanoscale masks to form high-aspect-ratio nanostructures. The micro-walls and nanostructures can be selectively hybridized by adjusting the gap distance between the mesh and the target surface: single nanostructures on a large area for a larger gap distance and hybrid/hierarchical structures with nanostructures nested on micro-walls for a shorter gap distance. The hierarchically nanostructured surface shows superhydrophobicity with low water adhesion, while the hybrid structured surface becomes become superhydrophobic with high adhesion. These water adhesion tunable surfaces were explored for water transport and evaporation. Additionally, we demonstrated a robust superhydrophobic surface with anti-reflectance over a large area.
Collapse
|
10
|
Xue CH, Tian QQ, Jia ST, Zhao LL, Ding YR, Li HG, An QF. The fabrication of mechanically durable and stretchable superhydrophobic PDMS/SiO2 composite film. RSC Adv 2020; 10:19466-19473. [PMID: 35515442 PMCID: PMC9054060 DOI: 10.1039/d0ra02029j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/06/2020] [Indexed: 01/09/2023] Open
Abstract
Stretchable superhydrophobic film was fabricated by casting silicone rubber polydimethylsiloxane (PDMS) on a SiO2 nanoparticle-decorated template and subsequent stripping. PDMS endowed the resulting surface with excellent flexibility and stretchability. The use of nanoparticles contributed to the sustained roughening of the surface, even under large strain, offering mechanically durable superhydrophobicity. The resulting composite film could maintain its superhydrophobicity (water contact angle ≈ 161° and sliding angle close to 0°) under a large stretching strain of up to 100% and could withstand 500 stretching–releasing cycles without losing its superhydrophobic properties. Furthermore, the obtained film was resistant to long term exposure to different pH solutions and ultraviolet light irradiation, as well as to manual destruction, sandpaper abrasion, and weight pressing. Stretchable superhydrophobic film was fabricated by casting silicone rubber polydimethylsiloxane (PDMS) on a SiO2 nanoparticle-decorated template and subsequent stripping.![]()
Collapse
Affiliation(s)
- Chao-Hua Xue
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
| | - Qian-Qian Tian
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Shun-Tian Jia
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Ling-Ling Zhao
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Ya-Ru Ding
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Hui-Gui Li
- College of Bioresources Chemical and Materials Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| | - Qiu-Feng An
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an 710021
- China
| |
Collapse
|
11
|
Ren M, Hu X, Li Y, Shao H, Jiang P, Zeng W, Wang C, Tang C. Crack growth-driven wettability transition on carbon black/polybutadiene nanocomposite coatings via stretching. SOFT MATTER 2019; 15:7678-7685. [PMID: 31490524 DOI: 10.1039/c9sm01234f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ordered topography patterns with a mechanical response are usually designed to achieve wettability switching by geometric parameter changes through mechanical stimuli. However, their fabrication often needs expensive and complicated micro/nano-fabrication processing (e.g. photolithography and ion etching). In this study, a nano-carbon black (CB)/polybutadiene (PB) coating with a Wenzel superhydrophobic state was prepared on a rubber substrate by a facile method combining solution mixing and spraying coating. By stretching the composite coating, the generated cracks divided the continuous coating into new micro-nano mastoids, resulting in the formation of new hierarchical roughness for Cassie superhydrophobicity. The Wenzel-to-Cassie transition behavior was dependent on the CB loading in the coating. During stretching, the cracks propagated more rapidly in the coating with higher CB loading and induced the desired hierarchical structure to consequently enable the Wenzel-to-Cassie transition earlier at a lower stretching strain. The stretched coating presented good anti-wetting (a sliding angle of 5°) and low water adhesion. After releasing, the coating returned to its original Wenzel state by structure recovery. Thus, the switchable wettability of the coating can be adopted for no-loss water droplet transfer by controlling the droplet adhesion through cyclic stretching-releasing, and exhibits good potential for microfluidic and biomedical applications.
Collapse
Affiliation(s)
- Meng Ren
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| | - Xin Hu
- Chemical and Biological Engineering (CBE), Hong Kong University of Science and Technology, Hong Kong 999077, China
| | - Yongsheng Li
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| | - Hong Shao
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| | - Peng Jiang
- Leshan Shizhong District Environmental Monitoring Station, No. 2000 Changqing Road, Shizhong District, Leshan City, 614000, China
| | - Wenwen Zeng
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| | - Cong Wang
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| | - Changyu Tang
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China.
| |
Collapse
|
12
|
Assembly Mechanism and the Morphological Analysis of the Robust Superhydrophobic Surface. COATINGS 2019. [DOI: 10.3390/coatings9080472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Robust superhydrophobic surfaces are fabricated on different substrates by a scalable spray coating process. The developed superhydrophobic surface consists of thin layers of surface functionalized silica nanoparticle (SiO2) bound to the substrate by acrylate-polyurethane (PU) binder. The influence of the SiO2/PU ratio on the superhydrophobicity, and the robustness of the developed surface, is systematically analyzed. The optimized SiO2/PU ratio for prepared superhydrophobic surfaces is obtained between 0.9 and 1.2. The mechanism which yields superhydrophobicity to the surface is deduced for the first time with the help of scanning electron microscopy and profilometer. The effect of mechanical abrasion on the surface roughness and superhydrophobicity are analyzed by using profilometer and contact angle measurement, respectively. Finally, it is concluded that the binder plays a key role in controlling the surface roughness and superhydrophobicity through the capillary mechanism. Additionally, the reason for the reduction in performance is also discussed with respect to the morphology variation.
Collapse
|
13
|
Rahman OSA, Mukherjee B, Islam A, Keshri AK. Instant Tuning of Superhydrophilic to Robust Superhydrophobic and Self-Cleaning Metallic Coating: Simple, Direct, One-Step, and Scalable Technique. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4616-4624. [PMID: 30608641 DOI: 10.1021/acsami.8b19045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We present a simple, direct, one-step, scalable technique for instant tuning of all the different states of wetting characteristics using atmospheric plasma spray (APS) technique. We observed that, just by changing the process parameters in the APS technique, the wetting characteristics of an intrinsically hydrophilic aluminum metallic surface can be tuned to superhydrophilic (contact angle (CA): 0°), hydrophilic (CA: 19.6°), hydrophobic (CA: 97.6°), and superhydrophobic (CA: 156.5°) surfaces. Also, tuned superhydrophobic surface showed an excellent self-cleaning property. Further, we demonstrated that these surfaces retain their superhydrophobic nature even after exposure at elevated temperatures (up to 773 K) and on application of mechanical abrasion. Manipulation in different wetting behavior was possible mainly due to the presence of varying degrees of smooth surface as well as micropillars, which incorporated the multiscale roughness to the surface. "Re-entrant"-like microstructures such as mushroom, cauliflower, and cornet microstructures were observed in the case of tuned superhydrophobic surface, which is well-known for achieving the excellent water repellency over the hydrophilic surface.
Collapse
Affiliation(s)
- O S Asiq Rahman
- Metallurgical and Materials Engineering , Indian Institute of Technology Patna , Bihta , Bihar 801106 , India
| | - Biswajyoti Mukherjee
- Metallurgical and Materials Engineering , Indian Institute of Technology Patna , Bihta , Bihar 801106 , India
| | - Aminul Islam
- Metallurgical and Materials Engineering , Indian Institute of Technology Patna , Bihta , Bihar 801106 , India
| | - Anup Kumar Keshri
- Metallurgical and Materials Engineering , Indian Institute of Technology Patna , Bihta , Bihar 801106 , India
| |
Collapse
|
14
|
Ellinas K, Tserepi A, Gogolides E. Durable superhydrophobic and superamphiphobic polymeric surfaces and their applications: A review. Adv Colloid Interface Sci 2017; 250:132-157. [PMID: 29021097 DOI: 10.1016/j.cis.2017.09.003] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/12/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022]
Abstract
Wetting control is essential for many applications, such as self-cleaning, anti-icing, anti-fogging, antibacterial action as well as anti-reflection and friction control. While significant effort has been devoted to fabricate superhydrophobic/superamphiphobic surfaces (repellent to water and other low surface tension liquids), very few polymeric superhydrophobic/superamphiphobic surfaces can be considered as durable against various externally imposed stresses (e.g. application of heating, pressure, mechanical forces, chemical, etc.). Therefore, durability tests are extremely important for applications especially when such surfaces are made of "soft" materials. Here, we review the most recent and promising efforts reported towards the realization of durable, superhydrophobic/superamphiphobic, polymeric surfaces emphasizing the durability tests performed, and some important applications. We compare and put in context the scattered durability tests reported in the literature, and present conclusions, perspectives and challenges in the field.
Collapse
|
15
|
Hoshian S, Kankuri E, Ras RHA, Franssila S, Jokinen V. Water and Blood Repellent Flexible Tubes. Sci Rep 2017; 7:16019. [PMID: 29167540 PMCID: PMC5700071 DOI: 10.1038/s41598-017-16369-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/10/2017] [Indexed: 11/26/2022] Open
Abstract
A top-down scalable method to produce flexible water and blood repellent tubes is introduced. The method is based on replication of overhanging nanostructures from an aluminum tube template to polydimethylsiloxane (PDMS) via atomic layer deposition (ALD) assisted sacrificial etching. The nanostructured PDMS/titania tubes are superhydrophobic with water contact angles 163 ± 1° (advancing) and 157 ± 1° (receding) without any further coating. Droplets are able to slide through a 4 mm (inner diameter) tube with low sliding angles of less than 10° for a 35 µL droplet. The superhydrophobic tube shows up to 5,000 times increase in acceleration of a sliding droplet compared to a control tube depending on the inclination angle. Compared to a free falling droplet, the superhydrophobic tube reduced the acceleration by only 38.55%, as compared to a 99.99% reduction for a control tube. The superhydrophobic tubes are blood repellent. Blood droplets (35 µL) roll through the tubes at 15° sliding angles without leaving a bloodstain. The tube surface is resistant to adhesion of activated platelets unlike planar control titania and smooth PDMS surfaces.
Collapse
Affiliation(s)
- Sasha Hoshian
- Department of Chemistry and Materials Science Aalto University School of Chemical Engineering, Espoo, Finland.
- Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA.
| | - Esko Kankuri
- Faculty of Medicine, Department of Pharmacology University of Helsinki, Helsinki, Finland
| | - Robin H A Ras
- Department of Applied Physics Aalto University School of Science, Espoo, Finland
| | - Sami Franssila
- Department of Chemistry and Materials Science Aalto University School of Chemical Engineering, Espoo, Finland
| | - Ville Jokinen
- Department of Chemistry and Materials Science Aalto University School of Chemical Engineering, Espoo, Finland.
| |
Collapse
|
16
|
Scarratt LR, Steiner U, Neto C. A review on the mechanical and thermodynamic robustness of superhydrophobic surfaces. Adv Colloid Interface Sci 2017; 246:133-152. [PMID: 28577754 DOI: 10.1016/j.cis.2017.05.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/15/2017] [Accepted: 05/29/2017] [Indexed: 12/15/2022]
Abstract
Advancements in the fabrication and study of superhydrophobic surfaces have been significant over the past 10years, and some 20years after the discovery of the lotus effect, the study of special wettability surfaces can be considered mainstream. While the fabrication of superhydrophobic surfaces is well advanced and the physical properties of superhydrophobic surfaces well-understood, the robustness of these surfaces, both in terms of mechanical and thermodynamic properties, are only recently getting attention in the literature. In this review we cover publications that appeared over the past ten years on the thermodynamic and mechanical robustness of superhydrophobic surfaces, by which we mean the long term stability under conditions of wear, shear and pressure. The review is divided into two parts, the first dedicated to thermodynamic robustness and the second dedicated to mechanical robustness of these complex surfaces. Our work is intended as an introductory review for researchers interested in addressing longevity and stability of superhydrophobic surfaces, and provides an outlook on outstanding aspects of investigation.
Collapse
|
17
|
Hu X, Tang C, He Z, Shao H, Xu K, Mei J, Lau WM. Highly Stretchable Superhydrophobic Composite Coating Based on Self-Adaptive Deformation of Hierarchical Structures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602353. [PMID: 28306203 DOI: 10.1002/smll.201602353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 01/16/2017] [Indexed: 06/06/2023]
Abstract
With the rapid development of stretchable electronics, functional textiles, and flexible sensors, water-proof protection materials are required to be built on various highly flexible substrates. However, maintaining the antiwetting of superhydrophobic surface under stretching is still a big challenge since the hierarchical structures at hybridized micro-nanoscales are easily damaged following large deformation of the substrates. This study reports a highly stretchable and mechanically stable superhydrophobic surface prepared by a facile spray coating of carbon black/polybutadiene elastomeric composite on a rubber substrate followed by thermal curing. The resulting composite coating can maintain its superhydrophobic property (water contact angle ≈170° and sliding angle <4°) at an extremely large stretching strain of up to 1000% and can withstand 1000 stretching-releasing cycles without losing its superhydrophobic property. Furthermore, the experimental observation and modeling analysis reveal that the stable superhydrophobic properties of the composite coating are attributed to the unique self-adaptive deformation ability of 3D hierarchical roughness of the composite coating, which delays the Cassie-Wenzel transition of surface wetting. In addition, it is first observed that the damaged coating can automatically recover its superhydrophobicity via a simple stretching treatment without incorporating additional hydrophobic materials.
Collapse
Affiliation(s)
- Xin Hu
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Changyu Tang
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Zhoukun He
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Hong Shao
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Keqin Xu
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Jun Mei
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| | - Woon-Ming Lau
- Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu, 610200, China
| |
Collapse
|
18
|
Fernández A, Francone A, Thamdrup LH, Johansson A, Bilenberg B, Nielsen T, Guttmann M, Sotomayor Torres CM, Kehagias N. Design of Hierarchical Surfaces for Tuning Wetting Characteristics. ACS APPLIED MATERIALS & INTERFACES 2017. [PMID: 28085240 DOI: 10.1088/1361-6439/aa62bb] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Patterned surfaces with tunable wetting properties are described. A hybrid hierarchical surface realized by combining two different materials exhibits different wetting states, depending on the speed of impingement of the water droplets. Both "lotus" (high contact angle and low adhesion) and "petal" (high contact angle and high adhesion) states were observed on the same surface without the need of any modification of the surface. The great difference between the capillary pressures exerted by the microstructures and nanostructures was the key factor that allowed us to tailor effectively the adhesiveness of the water droplets. Having a low capillary pressure for the microstructures and a high capillary pressure for the nanostructures, we allow to the surface the possibility of being in a lotus state or in a petal state.
Collapse
Affiliation(s)
- Ariadna Fernández
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology, UAB Campus, 08193 Bellaterra, Barcelona, Spain
| | - Achille Francone
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology, UAB Campus, 08193 Bellaterra, Barcelona, Spain
| | - Lasse H Thamdrup
- NIL Technology ApS, Diplomvej 381, DK-2800 Kongens Lyngby, Denmark
| | - Alicia Johansson
- NIL Technology ApS, Diplomvej 381, DK-2800 Kongens Lyngby, Denmark
| | - Brian Bilenberg
- NIL Technology ApS, Diplomvej 381, DK-2800 Kongens Lyngby, Denmark
| | - Theodor Nielsen
- NIL Technology ApS, Diplomvej 381, DK-2800 Kongens Lyngby, Denmark
| | - Markus Guttmann
- Karlsruhe Institute of Technology (KIT) , D-76344 Eggenstein Leopoldshafen, Germany
| | - Clivia M Sotomayor Torres
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology, UAB Campus, 08193 Bellaterra, Barcelona, Spain
- ICREA, Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
| | - Nikolaos Kehagias
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology, UAB Campus, 08193 Bellaterra, Barcelona, Spain
| |
Collapse
|
19
|
Si Y, Guo Z, Liu W. A Robust Epoxy Resins @ Stearic Acid-Mg(OH)2 Micronanosheet Superhydrophobic Omnipotent Protective Coating for Real-Life Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16511-20. [PMID: 27265834 DOI: 10.1021/acsami.6b04668] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Superhydrophobic coating has extremely high application value and practicability. However, some difficult problems such as weak mechanical strength, the need for expensive toxic reagents, and a complex preparation process are all hard to avoid, and these problems have impeded the superhydrophobic coating's real-life application for a long time. Here, we demonstrate one kind of omnipotent epoxy resins @ stearic acid-Mg(OH)2 superhydrophobic coating via a simple antideposition route and one-step superhydrophobization process. The whole preparation process is facile, and expensive toxic reagents needed. This omnipotent coating can be applied on any solid substrate with great waterproof ability, excellent mechanical stability, and chemical durability, which can be stored in a realistic environment for more than 1 month. More significantly, this superhydrophobic coating also has four protective abilities, antifouling, anticorrosion, anti-icing, and flame-retardancy, to cope with a variety of possible extreme natural environments. Therefore, this omnipotent epoxy resins @ stearic acid-Mg(OH)2 superhydrophobic coating not only satisfies real-life need but also has great application potential in many respects.
Collapse
Affiliation(s)
- Yifan Si
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University , Wuhan 430062, People's Republic of China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University , Wuhan 430062, People's Republic of China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, People's Republic of China
| | - Weimin Liu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, People's Republic of China
| |
Collapse
|
20
|
Wang L, Yang J, Zhu Y, Li Z, Sheng T, Hu Y, Yang DQ. A study of the mechanical and chemical durability of Ultra-Ever Dry Superhydrophobic coating on low carbon steel surface. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.02.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
21
|
Scarratt LRJ, Hoatson BS, Wood ES, Hawkett BS, Neto C. Durable Superhydrophobic Surfaces via Spontaneous Wrinkling of Teflon AF. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6743-50. [PMID: 26910574 DOI: 10.1021/acsami.5b12165] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report the fabrication of both single-scale and hierarchical superhydrophobic surfaces, created by exploiting the spontaneous wrinkling of a rigid Teflon AF film on two types of shrinkable plastic substrates. Sub-100 nm to micrometric wrinkles were reproducibly generated by this simple process, with remarkable control over the size and hierarchy. Hierarchical Teflon AF wrinkled surfaces showed extremely high water repellence (contact angle 172°) and very low contact angle hysteresis (2°), resulting in droplets rolling off the surface at tilt angles lower than 5°. The wrinkling process intimately binds the Teflon AF layer with its substrate, making these surfaces mechanically robust, as revealed by macroscale and nanoscale wear tests: hardness values were close to that of commercial optical lenses and aluminum films, resistance to scratch was comparable to commercial hydrophobic coatings, and damage by extensive sonication did not significantly affect water repellence. By this fabrication method the size of the wrinkles can be reproducibly tuned from the nanoscale to the microscale, across the whole surface in one step; the fabrication procedure is extremely rapid, requiring only 2 min of thermal annealing to produce the desired topography, and uses inexpensive materials. The very low roll-off angles achieved in the hierarchical surfaces offer a potentially up-scalable alternative as self-cleaning and drag-reducing coatings.
Collapse
Affiliation(s)
- Liam R J Scarratt
- School of Chemistry, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Ben S Hoatson
- School of Chemistry, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Elliot S Wood
- School of Chemistry, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Brian S Hawkett
- School of Chemistry, The University of Sydney , Sydney, New South Wales 2006, Australia
| | - Chiara Neto
- School of Chemistry, The University of Sydney , Sydney, New South Wales 2006, Australia
| |
Collapse
|
22
|
Sojoudi H, Wang M, Boscher ND, McKinley GH, Gleason KK. Durable and scalable icephobic surfaces: similarities and distinctions from superhydrophobic surfaces. SOFT MATTER 2016; 12:1938-1963. [PMID: 26757856 DOI: 10.1039/c5sm02295a] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Formation, adhesion, and accumulation of ice, snow, frost, glaze, rime, or their mixtures can cause severe problems for solar panels, wind turbines, aircrafts, heat pumps, power lines, telecommunication equipment, and submarines. These problems can decrease efficiency in power generation, increase energy consumption, result in mechanical and/or electrical failure, and generate safety hazards. To address these issues, the fundamentals of interfaces between liquids and surfaces at low temperatures have been extensively studied. This has lead to development of so called "icephobic" surfaces, which possess a number of overlapping, yet distinctive, characteristics from superhydrophobic surfaces. Less attention has been given to distinguishing differences between formation and adhesion of ice, snow, glaze, rime, and frost or to developing a clear definition for icephobic, or more correctly pagophobic, surfaces. In this review, we strive to clarify these differences and distinctions, while providing a comprehensive definition of icephobicity. We classify different canonical families of icephobic (pagophobic) surfaces providing a review of those with potential for scalable and robust development.
Collapse
Affiliation(s)
- H Sojoudi
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | | | | | | | | |
Collapse
|
23
|
Jagdheesh R, Diaz M, Ocaña JL. Bio inspired self-cleaning ultrahydrophobic aluminium surface by laser processing. RSC Adv 2016. [DOI: 10.1039/c6ra12236a] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ultrahydrophobic self cleaning surface is fabricated with nanosecond laser source on aluminium foil.
Collapse
Affiliation(s)
- R. Jagdheesh
- Centro Láser
- Universidad Politécnica de Madrid
- Madrid
- Spain
| | - M. Diaz
- Centro Láser
- Universidad Politécnica de Madrid
- Madrid
- Spain
| | - J. L. Ocaña
- Centro Láser
- Universidad Politécnica de Madrid
- Madrid
- Spain
| |
Collapse
|
24
|
Zhang ZX, Zhang T, Zhang X, Xin Z, Deng X, K. P. Mechanically stable superhydrophobic polymer films by a simple hot press lamination and peeling process. RSC Adv 2016. [DOI: 10.1039/c5ra24748a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mechanically stable superhydrophobic PP/UHMWPE polymer blend films prepared by a simple and facile hot-press lamination and peeling method.
Collapse
Affiliation(s)
- Zhen-Xiu Zhang
- Laboratory of Rubber–Plastics
- Ministry of Education
- Shandong Provincial Key Laboratory of Rubber–Plastics
- Qingdao University of Science and Technology
- Qingdao
| | - Tao Zhang
- Laboratory of Rubber–Plastics
- Ministry of Education
- Shandong Provincial Key Laboratory of Rubber–Plastics
- Qingdao University of Science and Technology
- Qingdao
| | - Xin Zhang
- Laboratory of Rubber–Plastics
- Ministry of Education
- Shandong Provincial Key Laboratory of Rubber–Plastics
- Qingdao University of Science and Technology
- Qingdao
| | - Zhenxiang Xin
- Laboratory of Rubber–Plastics
- Ministry of Education
- Shandong Provincial Key Laboratory of Rubber–Plastics
- Qingdao University of Science and Technology
- Qingdao
| | - Xu Deng
- Institute of Fundamental and Frontier Sciences
- University of Electronic Science and Technology of China
- Chengdu
- China
| | - Prakashan K.
- Laboratory of Rubber–Plastics
- Ministry of Education
- Shandong Provincial Key Laboratory of Rubber–Plastics
- Qingdao University of Science and Technology
- Qingdao
| |
Collapse
|
25
|
Yan H, Zhou H, Ye Q, Wang X, Cho CM, Tan AYX, Xu J. Engineering polydimethylsiloxane with two-dimensional graphene oxide for an extremely durable superhydrophobic fabric coating. RSC Adv 2016. [DOI: 10.1039/c6ra14362h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
A type of nanostructured material comprising reduced graphene oxide (RGO) modified polydimethylsiloxane (PDMS) for fabric coating is described.
Collapse
Affiliation(s)
- Hong Yan
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Hui Zhou
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Qun Ye
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Xiaobai Wang
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Ching Mui Cho
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Angeline Yan Xuan Tan
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
| | - Jianwei Xu
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science, Technology and Research (A*STAR)
- Republic of Singapore
- Department of Chemistry
- National University of Singapore
| |
Collapse
|
26
|
Ramos Chagas G, Darmanin T, Guittard F. Nanostructured superhydrophobic films synthesized by electrodeposition of fluorinated polyindoles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:2078-2087. [PMID: 26665079 PMCID: PMC4660953 DOI: 10.3762/bjnano.6.212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
Materials with bioinspired superhydrophobic properties are highly desirable for many potential applications. Here, nine novel monomers derived from indole are synthesized to obtain these properties by electropolymerization. These monomers differ by the length (C4F9, C6F13 and C8F17) and the position (4-, 5- and 6-position of indole) of the perfluorinated substituent. Polymeric films were obtained with C4F9 and C6F13 chains and differences in the surface morphology depend especially on the substituent position. The polyindoles exhibited hydrophobic and superhydrophobic properties even with a very low roughness. The best results are obtained with PIndole-6-F 6 for which superhydrophobic and highly oleophobic properties are obtained due to the presence of spherical nanoparticles and low surface energy compounds.
Collapse
Affiliation(s)
- Gabriela Ramos Chagas
- Univ. Nice Sophia Antipolis, CNRS, LPMC, UMR 7336, 06100 Nice, France; Fax: (+33)492076156; Tel: (+33)492076159
| | - Thierry Darmanin
- Univ. Nice Sophia Antipolis, CNRS, LPMC, UMR 7336, 06100 Nice, France; Fax: (+33)492076156; Tel: (+33)492076159
| | - Frédéric Guittard
- Univ. Nice Sophia Antipolis, CNRS, LPMC, UMR 7336, 06100 Nice, France; Fax: (+33)492076156; Tel: (+33)492076159
| |
Collapse
|
27
|
Si Y, Guo Z. Superhydrophobic nanocoatings: from materials to fabrications and to applications. NANOSCALE 2015; 7:5922-46. [PMID: 25766486 DOI: 10.1039/c4nr07554d] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Superhydrophobic nanocoatings, a combination of nanotechnology and superhydrophobic surfaces, have received extraordinary attention recently, focusing both on novel preparation strategies and on investigations of their unique properties. In the past few decades, inspired by the lotus leaf, the discovery of nano- and micro-hierarchical structures has brought about great change in the superhydrophobic nanocoatings field. In this paper we review the contributions to this field reported in recent literature, mainly including materials, fabrication and applications. In order to facilitate comparison, materials are divided into 3 categories as follows: inorganic materials, organic materials, and inorganic-organic materials. Each kind of materials has itself merits and demerits, as well as fabrication techniques. The process of each technique is illustrated simply through a few classical examples. There is, to some extent, an association between various fabrication techniques, but many are different. So, it is important to choose appropriate preparation strategies, according to conditions and purposes. The peculiar properties of superhydrophobic nanocoatings, such as self-cleaning, anti-bacteria, anti-icing, corrosion resistance and so on, are the most dramatic. Not only do we introduce application examples, but also try to briefly discuss the principle behind the phenomenon. Finally, some challenges and potential promising breakthroughs in this field are also succinctly highlighted.
Collapse
Affiliation(s)
- Yifan Si
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
| | | |
Collapse
|
28
|
Katariya M, Vuong T, Ng TW. Liquid body formation from a semispherical superhydrophobic well on a small incline. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13731-13736. [PMID: 25370431 DOI: 10.1021/la502194d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work, drop formation on a slightly inclined superhydrophobic substrate with liquid at various flow rates delivered through a semispherical well was investigated. Due to the initial dry well condition in the first drop produced, the inertial force from liquid filling allowed the well's edge hysteresis to be more readily breached, in which flow rates of 16 mL/min and above could create a jet that appeared to be able to "pierce" through the top of the semispherical drop without disrupting its form and growth very much. For subsequent drops, the well's edge hysteresis at flow rates of 14 mL/min and above helped to support an "egg" like form. In contrast, this form could not be developed on a similarly inclined superhydrophobic substrate without a well. The findings here assist to establish the flow rate ranges for consistent discrete volume delivery in biochemical analysis and serves as a means to conduct investigations to better reconcile the tendency of liquids to assume drops or develop jets.
Collapse
Affiliation(s)
- Mayur Katariya
- Laboratory for Optics and Applied Mechanics, Department of Mechanical & Aerospace Engineering, Monash University , Clayton, Victoria 3800, Australia
| | | | | |
Collapse
|
29
|
Dyett BP, Wu AH, Lamb RN. Mechanical stability of surface architecture--consequences for superhydrophobicity. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18380-18394. [PMID: 25318076 DOI: 10.1021/am505487r] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Wet chemistry methods such as sol-gel provide a facile means of preparing coatings with controlled surface chemistry and architecture. The manipulation of colloidal "building blocks," film constituents, and reaction conditions makes it a promising method for simple, scalable, and routine production of superhydrophobic coatings. Despite all of this, the practical application of superhydrophobic coatings remains limited by low mechanical durability. The translation of chemistry to mechanical strength within superhydrophobic films is severely hindered by the requisite physical structure. More specifically, porosity and the surface architecture of roughness in sol-gel-derived films contribute significantly to poor mechanical properties. These physical effects emphasize that collective structure and chemistry-based strategies are required. This challenge is not unique to superhydrophobics, and there are many principles that can be drawn upon to greatly improve performance. The delicate interplay between chemistry and physical structure has been highlighted through theory and characterization of porous and rough interfaces within and outside the framework of superhydrophobics. Insights can further be drawn from biology. Nature's capacity for self-repair remains extremely challenging to mimic in materials. However, nature does demonstrate strategies for structuring nano- and microbuilding blocks to achieve generally mutually exclusive properties. Difficulties with characterization and example mechanical characterization methods have also been emphasized.
Collapse
Affiliation(s)
- Brendan P Dyett
- School of Chemistry, University of Melbourne , Parkville, Victoria, Australia , 3010
| | | | | |
Collapse
|
30
|
Shen L, Qiu W, Liu B, Guo Q. Stable superhydrophobic surface based on silicone combustion product. RSC Adv 2014. [DOI: 10.1039/c4ra10838h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
31
|
Xiong L, Kendrick LL, Heusser H, Webb JC, Sparks BJ, Goetz JT, Guo W, Stafford CM, Blanton MD, Nazarenko S, Patton DL. Spray-deposition and photopolymerization of organic-inorganic thiol-ene resins for fabrication of superamphiphobic surfaces. ACS APPLIED MATERIALS & INTERFACES 2014; 6:10763-74. [PMID: 24911278 DOI: 10.1021/am502691g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Superamphiphobic surfaces, exhibiting high contact angles and low contact angle hysteresis to both water and low surface tension liquids, have attracted a great deal attention in recent years because of the potential of these materials in practical applications such as liquid-resistant textiles, self-cleaning surfaces, and antifouling/anticorrosion coatings. In this work, we present a simple strategy for fabricating of superamphiphobic coatings based on photopolymerization of hybrid thiol-ene resins. Spray-deposition and UV photopolymerization of thiol-ene resins containing hydrophobic silica nanoparticles and perfluorinated thiols provide a multiscale topography and low-energy surface that endows the surface with superamphiphobicity. The wettability and chemical composition of the surfaces were characterized by contact-angle goniometry and X-ray photoelectron spectroscopy, respectively. The hierarchical roughness features of the thiol-ene surfaces were investigated with field-emission scanning electron microscopy. Droplet impact and sandpaper abrasion tests indicate the coatings respectively possess a robust antiwetting behavior and good mechanical durability.
Collapse
Affiliation(s)
- Li Xiong
- School of Polymers and High Performance Materials, University of Southern Mississippi , Hattiesburg, Mississippi 39406, United States
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|