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Zhu J, Fan H, Wan J. Solvent-Free and UV-Cured Epoxy Silicone Coating with Excellent Wear Resistance and Antismudge Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35494-35504. [PMID: 38924769 DOI: 10.1021/acsami.4c03775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Transparent, hard, and flexible multifunctional coatings have a wide range of applications; however, most of them need organic solvents. Here, we present a solvent-free and UV-cured coating made from fluorinated epoxy MTQ silicone resin combined with branched triepoxy siloxane as the reactive diluent. After UV-initiated ring-opening polymerization in the presence of a triarylsulfonium hexafluoroantimonate catalyst, the resultant cured coating exhibits high transparency (∼92%, 550 nm), pencil hardness (7H), and flexibility (1 mm bending diameter) due to the formed organic-inorganic nanostructures in a highly cross-linked network. The triepoxy siloxane significantly reduces the viscosity before curing and increases cross-link density of the coating. The coating without any volatile content shows a smooth surface with low roughness (Rq = 0.46 nm) and delivers an anti-smudge ability owing to perfluorinated chains inherited from the MTQ resin. Furthermore, even after 3000 abrasion cycles, the coating still has a water contact angle greater than 90°, displaying excellent wear resistance. Our work provides a promising way to access high-performance multifunctional coatings in a more sustainable manner.
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Affiliation(s)
- Jialong Zhu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, P. R. China
| | - Hong Fan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jintao Wan
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, China
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2
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Wang W, Deng W, Gu W, Yu X, Zhang Y. Transparent anti-fingerprint glass surfaces: comprehensive insights into theory, design, and prospects. NANOSCALE 2024; 16:2695-2712. [PMID: 38112659 DOI: 10.1039/d3nr04462a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
With the advancement of information technology, touch-operated devices such as smartphones, tablets, and computers have become ubiquitous, reshaping our interaction with technology. Transparent surfaces, pivotal in the display industry, architecture, and household appliances, are prone to contamination from fingerprints, grease, and dust. Such contaminants compromise the cleanliness, aesthetic appeal, hygiene of the glass, and the overall user visual experience. As a result, fingerprint prevention has gained prominence in related research domains. This article delves into the primary characteristics of fingerprints and elucidates the fundamental mechanisms and components behind their formation. We then explore the essential properties, classifications, and theoretical foundations of anti-fingerprint surfaces. The paper concludes with a comprehensive review of recent advancements and challenges in transparent superlyophobic fingerprint-resistant surfaces, projecting future trajectories for transparent fingerprint-resistant glass surfaces.
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Affiliation(s)
- Wei Wang
- NJIT-YSU Joint Research Institute, Nanjing Institute of Technology (NJIT), Nanjing, 211167, China
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China.
| | - Weilin Deng
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China.
| | - Wancheng Gu
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China.
- The 723 Institute of CSSC, Yangzhou, 225101, P.R. China
| | - Xinquan Yu
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China.
| | - Youfa Zhang
- Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China.
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3
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Guo X, Di Y, Liang Q, Li P, Lv J, Tian Y, Li Q, Jiang L, Xu C, Zhang Z. Inorganic-Organic Silica/PDMS Nanocomposite Antiadhesive Coating with Ultrahigh Hardness and Thermal Stability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17245-17255. [PMID: 36952589 DOI: 10.1021/acsami.3c00989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Antiadhesive surfaces have been gaining continuous attention, because of the scientific and industrial significance. Slippery surfaces and antismudge coatings with antiadhesive behavior have been readily designed and prepared. However, improving robustness of the surfaces, especially the simultaneous demonstration of features of high hardness, excellent adhesion to different substrates, and high thermal stability, is constantly challenging. Herein, we present a silica/polydimethylsiloxane (PDMS) nanocomposite coating (SPNC), wherein silica acts as a consecutive phase and nanophased PDMS is covalently embedded. The nanoconfined PDMS phase exhibits enhanced thermal stability and endows SPNC with slippery behavior; meanwhile, enrichment of PDMS on the surface renders a gradient composition of the coating. Accordingly, the inorganic-organic SPNC simultaneously displays a high nanoindentation hardness of 3.07 GPa and a pencil hardness over 9H, outstanding thermal stability of the slippery performance up to 400 °C, and excellent adhesion strength to different substrates. Additionally, SPNC exhibits high optical transparency, flexibility, resistance to bacterial clone, and chemical corrosion. With the scalable fabrication process, it can be envisioned that the antiadhesive coating with unprecedented comprehensive merits in this work has significant potentials for large-area applications, especially under severe service environments.
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Affiliation(s)
- Xiang Guo
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Youyu Di
- AML, CNMM, Department of Engineering Mechanics, State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qianying Liang
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Pengfei Li
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jianyong Lv
- CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Ye Tian
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Qunyang Li
- AML, CNMM, Department of Engineering Mechanics, State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, People's Republic of China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- Research Institute for Frontier Science, Beihang University, Beijing 100191, People's Republic of China
| | - Caihong Xu
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zongbo Zhang
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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4
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Seo D, Cho YH, Kim G, Shin H, Lee SK, Kim JE, Chun H, Jung JS, Choi Y. Permanent Anticoagulation Blood-Vessel by Mezzo-Sized Double Re-Entrant Structure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300564. [PMID: 37010002 DOI: 10.1002/smll.202300564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Indexed: 06/19/2023]
Abstract
Having a permanent omniphobicity on the inner surface of the tube can bring enormous advantages, such as reducing resistance and avoiding precipitation during mass transfer. For example, such a tube can prevent blood clotting when delivering blood composed of complex hydrophilic and lipophilic compounds. However, it is very challenging to fabricate micro and nanostructures inside a tube. To overcome these, a wearability and deformation-free structural omniphobic surface is fabricated. The omniphobic surface can repel liquids by its "air-spring" under the structure, regardless of surface tension. Furthermore, it is not lost an omniphobicity under physical deformation like curved or twisted. By using these properties, omniphobic structures on the inner wall of the tube by the "roll-up" method are fabricated. Fabricated omniphobic tubes still repels liquids, even complex liquids like blood. According to the ex vivo blood tests for medical usage, the tube can reduce thrombus formation by 99%, like the heparin-coated tube. So, it is believed the tube can be soon replaced typical coating-based medical surfaces or anticoagulation blood vessel.
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Affiliation(s)
- Dongkwon Seo
- Department of Bio-Convergence Engineering, Korea University, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, Republic of Korea
| | - Yang Hyun Cho
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Seoul, 06351, Republic of Korea
| | - Gijung Kim
- Department of Bio-Convergence Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hyunku Shin
- Exopert Corporation, Seoul, 02841, Republic of Korea
| | - Su Kyoung Lee
- Korea Artificial Organ Center, Seoul, 02841, Republic of Korea
| | - Ji Eon Kim
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
| | - Honggu Chun
- Department of Bio-Convergence Engineering, Korea University, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, Republic of Korea
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jae Seung Jung
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, 02841, Republic of Korea
| | - Yeonho Choi
- Department of Bio-Convergence Engineering, Korea University, Seoul, 02841, Republic of Korea
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, 02841, Republic of Korea
- Exopert Corporation, Seoul, 02841, Republic of Korea
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
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5
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Liang H, Zhang Z, Liu Y, Ye M, Hu C, Huang Y. Self-healable and transparent PDMS- g-poly(fluorinated acrylate) coating with ultra-low ice adhesion strength for anti-icing applications. Chem Commun (Camb) 2023; 59:3293-3296. [PMID: 36843530 DOI: 10.1039/d2cc05834k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The high ice adhesion strength (τ) and low adhesion of lubricant-free slippery polymers have restricted their applications. We synthesized polysiloxane-g-fluorinated acrylate polymer with a branched structure, anchored groups and dynamic cross-linked network, features imparting increased chain segment slipperiness and self-healability. The coating showed a low τ (6 kPa), strong adhesion and prolonged life.
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Affiliation(s)
- Hengfei Liang
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China. .,School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Zihong Zhang
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China. .,School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Ying Liu
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China. .,School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Min Ye
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China. .,School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Chengyao Hu
- School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Yawen Huang
- State Key Laboratory of Environmental-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China.
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Abstract
Liquid-repellent surfaces, especially smooth solid surfaces with covalently grafted flexible polymer brushes or alkyl monolayers, are the focus of an expanding research area. Surface-tethered flexible species are highly mobile at room temperature, giving solid surfaces a unique liquid-like quality and unprecedented dynamical repellency towards various liquids regardless of their surface tension. Omniphobic liquid-like surfaces (LLSs) are a promising alternative to air-mediated superhydrophobic or superoleophobic surfaces and lubricant-mediated slippery surfaces, avoiding fabrication complexity and air/lubricant loss issues. More importantly, the liquid-like molecular layer controls many important interface properties, such as slip, friction and adhesion, which may enable novel functions and applications that are inaccessible with conventional solid coatings. In this Review, we introduce LLSs and their inherent dynamic omniphobic mechanisms. Particular emphasis is given to the fundamental principles of surface design and the consequences of the liquid-like nature for task-specific applications. We also provide an overview of the key challenges and opportunities for omniphobic LLSs.
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Affiliation(s)
- Liwei Chen
- School of Materials Science and Engineering, Key Laboratory for Polymer Composite & Functional Materials of Ministry of Education, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, P. R. China
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, P. R. China
| | - Shilin Huang
- School of Materials Science and Engineering, Key Laboratory for Polymer Composite & Functional Materials of Ministry of Education, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, P. R. China
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, P. R. China
| | - Robin H A Ras
- Department of Applied Physics, Aalto University School of Science, Espoo, Finland.
- Center of Excellence in Life-Inspired Hybrid Materials (LIBER), Aalto University, Espoo, Finland.
| | - Xuelin Tian
- School of Materials Science and Engineering, Key Laboratory for Polymer Composite & Functional Materials of Ministry of Education, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, Sun Yat-sen University, Guangzhou, P. R. China.
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou, P. R. China.
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7
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Zhang P, Zhang G, Pan J, Ma C, Zhang G. Non-isocyanate Polyurethane Coating with High Hardness, Superior Flexibility, and Strong Substrate Adhesion. ACS APPLIED MATERIALS & INTERFACES 2023; 15:5998-6004. [PMID: 36683575 DOI: 10.1021/acsami.2c22433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Flexible hard coatings with strong adhesion are critical requirements for several foldable devices and marine applications; however, only a few such coatings have been reported. Herein, we report a non-isocyanate polyurethane (NIPU) coating prepared by the epoxy-oligosiloxane nanocluster-amine curing reaction and cyclic carbonate-amine polyaddition, where the former provides the coating with ceramic-like hardness and polymer-like flexibility while the latter polymerization results in NIPU with strong substrate adhesion. The coating is transparent (>92% transmittance), hard (5-7 H), and flexible (2 mm bending diameter). It has strong adhesion to various substrates including aluminum alloy, titanium, steel, glass, ceramic, epoxy, and polyethylene terephthalate (2-8 MPa), which can be attributed to the high density of polar groups in NIPU. Moreover, we can facilely endow the coating with anti-icing, self-cleaning, and anti-smudge capabilities by incorporating amine-terminated low-surface-tension polydimethylsiloxane (PDMS) to replace a part of the amine curing agent. Particularly, the mechanical properties of NIPU coatings are only slightly affected by the introduction of low-content PDMS since it intends to enrich on the surface. The novel coating has promising future for use in fields of foldable devices and marine applications.
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Affiliation(s)
- Pengli Zhang
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P. R. China
| | - Guoliang Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jiansen Pan
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chunfeng Ma
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P. R. China
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Guangzhao Zhang
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P. R. China
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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8
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Zheng W, Huang J, Zang X, Xu X, Cai W, Lin Z, Lai Y. Judicious Design and Rapid Manufacturing of a Flexible, Mechanically Resistant Liquid-Like Coating with Strong Bonding and Antifouling Abilities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2204581. [PMID: 36018280 DOI: 10.1002/adma.202204581] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Fluorine-free liquid-repellent coatings have been highly demanded for a variety of applications. However, rapid formation of coatings possessing outstanding oil repellency and strong bonding ability as well as good mechanical strength (e.g., bendability, impact resistance, and scratch resistance) remains a grand challenge. Herein, a robust strategy to rapidly create fluorine-free oil-repellent coatings in only 30 s via rational design of a semi-interpenetrating polymer network structure is reported. The resulting coating manifests strong bonding capability both in air and underwater. More importantly, it not only provides unprecedented oil repellency, even to high-viscosity crude oil, but also achieves both excellent bendability and hardness. This simple yet effective design strategy opens up a new avenue to manufacture multifunctional materials and devices with desirable features and structural complexities for applications in sustainable antifouling, drag reduction, nondestructive transportation, liquid collection, and biomedicine, among other areas.
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Affiliation(s)
- Weiwei Zheng
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Jianying Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
| | - Xuerui Zang
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Xuanfei Xu
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Weilong Cai
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
| | - Zhiqun Lin
- Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yuekun Lai
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
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Neßlinger V, Welzel S, Rieker F, Meinderink D, Nieken U, Grundmeier G. Thin Organic‐inorganic Anti‐fouling Hybrid‐films for Microreactor Components. MACROMOL REACT ENG 2022. [DOI: 10.1002/mren.202200043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vanessa Neßlinger
- Faculty of Science Department of Chemistry Technical and Macromolecular Chemistry (TMC) Paderborn University Warburger Str. 100 33098 Paderborn Germany
| | - Stefan Welzel
- Institute of Chemical Process Engineering University of Stuttgart Böblinger Str. 78 70199 Stuttgart Germany
| | - Florian Rieker
- Faculty of Science Department of Chemistry Technical and Macromolecular Chemistry (TMC) Paderborn University Warburger Str. 100 33098 Paderborn Germany
| | - Dennis Meinderink
- Faculty of Science Department of Chemistry Technical and Macromolecular Chemistry (TMC) Paderborn University Warburger Str. 100 33098 Paderborn Germany
| | - Ulrich Nieken
- Institute of Chemical Process Engineering University of Stuttgart Böblinger Str. 78 70199 Stuttgart Germany
| | - Guido Grundmeier
- Faculty of Science Department of Chemistry Technical and Macromolecular Chemistry (TMC) Paderborn University Warburger Str. 100 33098 Paderborn Germany
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10
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Lin X, Li HT, Nie MX, Fu SR, Li Y, Zhang Q, Chen F, Han D, Fu Q. Engineering the Properties of Transparent Hybrid Coating toward High Hardness, Excellent Flexibility, and Multifunction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39432-39440. [PMID: 35993524 DOI: 10.1021/acsami.2c13256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Transparent functional coatings with glass-like hardness and polymer-like flexibility are highly desirable for flexible and foldable displays. Although several coatings have been developed toward this goal, achieving a functional coating with 9H pencil hardness and extremely low bending radius of curvature (rc) remains a great challenge due to the inherent conflict between hardness and flexibility. To overcome this trade-off, a facile strategy is developed herein. The coating is an organic-inorganic hybrid nanocomposite that is prepared from thiol-acrylate polymerization of acrylo polyhedral oligomeric silsesquioxane and multifunctional thiols. The former provides the desired hardness, while the latter affords high flexibility and the maximum level of chemical bonding for organic-inorganic phases. Because of the good miscibility and varied functionality of monomers, we are able to manipulate the composition and internal structure of coating systematically, endowing it with high transparency (98%, 550 nm), super hardness (9H), excellent low modulus (1.85 GPa, the most flexible one to date), and the ability to withstand steel wool's abrasion and repeated bending (rc = 0.8 mm) 10 000 times on PET film. On the final coating, both antifouling and antibacterial abilities are integrated without sacrificing its other properties after postfunctionalizing a zwitterionic layer. This work balances the hardness-flexibility conflict effectively and provides some useful protective coatings for next-generation displays.
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Affiliation(s)
- Xiong Lin
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Hao-Tian Li
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Ming-Xi Nie
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Si-Rui Fu
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yiwen Li
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Qin Zhang
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Feng Chen
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Di Han
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Qiang Fu
- College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
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11
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Lai Z, Liu G. Facile Preparation of a Transparent and Rollable Omniphobic Coating with Exceptional Hardness and Wear Resistance. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35138-35147. [PMID: 35853098 DOI: 10.1021/acsami.2c10200] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The encapsulating film for the touchscreen of a foldable smartphone consists of a flexible polymer layer covered by a hard coating and an antismudge coating, and the two coating layers are currently deposited via separate steps. This paper reports the preparation of a bilayer bifunctional coating via the deposition of a single polymer mixture. The base material for the coating is a ladder-like polysilsesquioxane (LASQ) that is derived from the sol-gel chemistry of 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane. Reacting a limiting amount of the liquid antismudge agent FP-COOH, which is a perfluorinated poly(propylene oxide) bearing a terminal carboxyl group, with LASQ yields m-LASQ-FP, a mixture of unreacted LASQ, and a graft copolymer LASQ-FP. m-LASQ-FP at a fluorine mass fraction of 6.0% is photocured to yield a coating with a surface energy of 12.3 ± 1.5 mJ/m2. At a thickness of 40 μm, the coating has at 500 nm a transmittance of >99% measured against its glass substrate, a remarkable nanoindentation hardness H value of 1.4 GPa, and a pencil hardness of > 9H. After being abraded for 300 strokes under a pressure of 26 kPa with steel wool, the coating exhibits no noticeable degradation in its ink contraction properties. At a thickness of 10 μm on a poly(ethylene terephthalate) film, the coating can undergo inward (on the inner surface of the bend) and outward bending to radii <1 and <2 mm, respectively, without cracking. Aside from being a superb candidate as a protective antismudge coating for foldable smartphones, this marvelous material should also have many other applications.
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Affiliation(s)
- Ziruo Lai
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston K7L 3N6, Ontario, Canada
| | - Guojun Liu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston K7L 3N6, Ontario, Canada
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12
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Lai CJ, Tsai HP, Chen JY, Wu MX, Chen YJ, Lin KY, Yang HT. Single-Step Fabrication of Longtail Glasswing Butterfly-Inspired Omnidirectional Antireflective Structures. NANOMATERIALS 2022; 12:nano12111856. [PMID: 35683712 PMCID: PMC9182152 DOI: 10.3390/nano12111856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023]
Abstract
Most bio-inspired antireflective nanostructures are extremely vulnerable and suffer from complicated lithography-based fabrication procedures. To address the issues, we report a scalable and simple non-lithography-based approach to engineer robust antireflective structures, inspired by the longtail glasswing butterfly, in a single step. The resulting two-dimensional randomly arranged 80/130/180 nm silica colloids, partially embedded in a polymeric matrix, generate a gradual refractive index transition at the air/substrate interface to suppress light reflection. Importantly, the randomly arranged subwavelength silica colloids display even better antireflection performance for large incident angles than that of two-dimensional non-close-packed silica colloidal crystals. The biomimetic coating is of considerable technological importance in numerous practical applications.
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Affiliation(s)
- Chung-Jui Lai
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan; (C.-J.L.); (J.-Y.C.); (M.-X.W.); (Y.-J.C.)
| | - Hui-Ping Tsai
- Department of Civil Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan;
| | - Ju-Yu Chen
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan; (C.-J.L.); (J.-Y.C.); (M.-X.W.); (Y.-J.C.)
| | - Mei-Xuan Wu
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan; (C.-J.L.); (J.-Y.C.); (M.-X.W.); (Y.-J.C.)
| | - You-Jie Chen
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan; (C.-J.L.); (J.-Y.C.); (M.-X.W.); (Y.-J.C.)
| | - Kun-Yi Lin
- Department of Environmental Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan
- Correspondence: (K.-Y.L.); (H.-T.Y.)
| | - Hong-Ta Yang
- Department of Chemical Engineering, National Chung Hsing University, 145 Xingda Road, Taichung City 40227, Taiwan; (C.-J.L.); (J.-Y.C.); (M.-X.W.); (Y.-J.C.)
- Correspondence: (K.-Y.L.); (H.-T.Y.)
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13
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Zhang Y, Chen Z, Zheng H, Chen R, Ma C, Zhang G. Multifunctional Hard Yet Flexible Coatings Fabricated Using a Universal Step-by-Step Strategy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200268. [PMID: 35274481 PMCID: PMC9109054 DOI: 10.1002/advs.202200268] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/16/2022] [Indexed: 05/05/2023]
Abstract
Hard yet flexible coatings with multi-functionalities are useful for foldable displays and marine industries but rare. In this study, a highly cross-linked multifunctional hybrid coating with ceramic-like hardness and polymer-like flexibility is reported. The coating is prepared via a step-by-step strategy, where two types of epoxy-oligosiloxane nanoclusters are first synthesized by sol-gel chemistry, and amine-terminated curing agents are used to cross-link them at room temperature. The coating is highly transparent (>92% transmittance), hard (6-7H), and flexible (10 mm bending diameter) because of the unique combination of siloxane nanoclusters and polymer networks. Meanwhile, since the coating contains fouling-resistant telomer and low-surface-tension liquid lubricant polydimethylsiloxane (PDMS), it exhibits excellent anti-biofouling and self-cleaning properties. The results indicate that the mechanical and antifouling properties of the coating can be easily tuned and prove that the step-by-step strategy is a promising and universal method. The novel coatings can meet the needs of applications in foldable displays, marine industries, and other fields.
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Affiliation(s)
- Yunsheng Zhang
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Zixin Chen
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Hao Zheng
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Runze Chen
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Chunfeng Ma
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Guangzhao Zhang
- Faculty of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
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14
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Zheng H, Liu G, Nienhaus BB, Buddingh JV. Ice-Shedding Polymer Coatings with High Hardness but Low Ice Adhesion. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6071-6082. [PMID: 35061365 DOI: 10.1021/acsami.1c23483] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ice readily sheds from weak oil-swollen polymer gels but tends to adhere to mechanically robust coatings. This paper reports bilayer coatings that simultaneously possess high bulk hardness but low ice adhesion. These coatings are prepared by cocuring a triisocyanate, P#'-g-PDMS [a methacrylate polyol bearing poly(dimethylsiloxane) (PDMS) side chains with # being 1, 2, or 3 and g denoting graft], and optionally a methacrylate polyol P#. The self-assembly of the system during coating formation yields a PDMS brush layer on the surface of the cross-linked polyurethane matrix. After the surface PDMS layer is lubricated with a silicone oil, this coating exhibits an ice adhesion τ that is 10 000-fold lower than that of a triisocyanate/P# coating. Ice slides under its own weight on such a coating at a tilt angle of 3°. Yet, the coating matrix is harder than poly(ethylene terephthalate), a widely used plastic. Additionally, such a coating maintains its low τ values for more than 10 consecutive icing/deicing cycles. Subsequent increases in τ are reversed by allowing time for the replenishment of the depleted surface lubricant with that released from the coating matrix. This design opens the door for effective yet hard ice-shedding polymer coatings.
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Affiliation(s)
- Haili Zheng
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Guojun Liu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Brandon Becher Nienhaus
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Jasmine V Buddingh
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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