1
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Dou Z, Sun J, Fang Q. A Facile One-Step Conversion of Biobased Magnolol (Honokiol) toward High Refractive Materials. Biomacromolecules 2024; 25:6155-6163. [PMID: 39110195 DOI: 10.1021/acs.biomac.4c00856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
A series of polymers with both high refractive index and high Abbe number have been successfully synthesized through the photoclick thiol-ene reaction between the monomers derived from biobased magnolol (or honokiol) and commercial mercaptans and thiophenols. The polymer films not only exhibit a high refractive index and a high Abbe number but also display a transmittance of up to 90% in a range of wavelengths from 550 to 2000 nm and nearly 0% in the UV region. Moreover, these polymers also display low haze values in the visible-light region as well as exhibit good thermostability. These data indicate that they have potential applications for the fabrication of optical lenses and anti-UV coatings. In particular, this series of polymers are readily used for industrialization due to its excellent optical properties but low expense, simplicity, and efficiency of synthesis.
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Affiliation(s)
- Zongao Dou
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jing Sun
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Qiang Fang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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2
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Su Y, He J. Rational Design of Highly Comprehensive Liquid-Like Coatings with Enhanced Transparency, Concerted Multi-Function, and Excellent Durability: A Ternary Cooperative Strategy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405767. [PMID: 39003607 DOI: 10.1002/adma.202405767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/02/2024] [Indexed: 07/15/2024]
Abstract
Durable repellent surfaces of high transparency find key applications in daily life and industry. Nevertheless, developing anti-reflective coatings with omni-repellency, concerted multi-function, and desirable durability remains a daunting challenge. Here, a highly comprehensive coating is designed based on the combination of structural design and molecular design. The resulting silica hybrid coating not only manifests enhanced transparency and exceptional omniphobicity, but also achieves integration of multi-function (e.g., anti-smudge, anti-icing, and anti-corrosion). The unprecedented durability of the coating is evidenced by maintaining slipperiness after rigorous treatments, such as 2.5 × 105-cycle mechanical abrasion with a high loading pressure of 100 kPa, 1000-cycle adhesion/peeling and soaking in extreme pH solutions, etc. This work provides a design blueprint for manufacturing versatile and durable coatings for wide-ranging applications.
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Affiliation(s)
- Yang Su
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junhui He
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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3
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Guo Q, Ma J, Yin T, Jin H, Zheng J, Gao H. Superhydrophobic Non-Metallic Surfaces with Multiscale Nano/Micro-Structure: Fabrication and Application. Molecules 2024; 29:2098. [PMID: 38731589 PMCID: PMC11085871 DOI: 10.3390/molecules29092098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Multiscale nano/micro-structured surfaces with superhydrophobicity are abundantly observed in nature such as lotus leaves, rose petals and butterfly wings, where microstructures typically reinforce mechanical stability, while nanostructures predominantly govern wettability. To emulate such hierarchical structures in nature, various methods have been widely applied in the past few decades to the manufacture of multiscale structures which can be applied to functionalities ranging from anti-icing and water-oil separation to self-cleaning. In this review, we highlight recent advances in nano/micro-structured superhydrophobic surfaces, with particular focus on non-metallic materials as they are widely used in daily life due to their lightweight, abrasion resistance and ease of processing properties. This review is organized into three sections. First, fabrication methods of multiscale hierarchical structures are introduced with their strengths and weaknesses. Second, four main application areas of anti-icing, water-oil separation, anti-fog and self-cleaning are overviewed by assessing how and why multiscale structures need to be incorporated to carry out their performances. Finally, future directions and challenges for nano/micro-structured surfaces are presented.
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Affiliation(s)
- Qi Guo
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
| | - Jieyin Ma
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
| | - Tianjun Yin
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
| | - Haichuan Jin
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
| | - Jiaxiang Zheng
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
| | - Hui Gao
- School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China; (Q.G.); (J.M.); (T.Y.); (H.J.); (J.Z.)
- Ningbo Institute of Technology, Beihang University, Ningbo 315100, China
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4
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Cao Y, Liu X, Zhang L, Wu Y, You C, Li H, Duan H, Huang J, Lv P. Water Impalement Resistance and Drag Reduction of the Superhydrophobic Surface with Hydrophilic Strips. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16973-16982. [PMID: 38502909 DOI: 10.1021/acsami.3c18905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Superhydrophobic surfaces (SHS) offer versatile applications by trapping an air layer within microstructures, while water jet impact can destabilize this air layer and deactivate the functions of the SHS. The current work presents for the first time that introducing parallel hydrophilic strips to SHS (SHS-s) can simultaneously improve both water impalement resistance and drag reduction (DR). Compared with SHS, SHS-s demonstrates a 125% increase in the enduring time against the impact of water jet with velocity of 11.9 m/s and a 97% improvement in DR at a Reynolds number of 1.4 × 104. The key mechanism lies in the enhanced stability of the air layer due to air confinement by the adjacent three-phase contact lines. These lines not only impede air drainage through the surface microstructures during water jet impact, entrapping the air layer to resist water impalement, but also prevent air floating up due to buoyancy in Taylor-Couette flow, ensuring an even spread of the air layer all over the rotor, boosting DR. Moreover, failure modes of SHS under water jet impact are revealed to be related to air layer decay and surface structure destruction. This mass-producible structured surface holds the potential for widespread use in DR for hulls, autonomous underwater vehicles, and submarines.
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Affiliation(s)
- Yanlin Cao
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
- Laoshan Laboratory, Qingdao 266237, People's Republic of China
| | - Xiaochao Liu
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
- Laoshan Laboratory, Qingdao 266237, People's Republic of China
| | - Liangpei Zhang
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
| | - Yanchen Wu
- Institute for Applied Materials-Microstructure Modeling and Simulation, Karlsruhe Institute of Technology, Strasse am Forum 7, Karlsruhe 76131, Germany
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Pl. 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Chenxi You
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
| | - Hongyuan Li
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
- Laoshan Laboratory, Qingdao 266237, People's Republic of China
| | - Huiling Duan
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
| | - Jianyong Huang
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
| | - Pengyu Lv
- State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, BIC-ESAT, College of Engineering, Peking University, Beijing 100871, China
- Laoshan Laboratory, Qingdao 266237, People's Republic of China
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5
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Meng Y, Wu B, Peng C, Xing S, Yin C, Wu N, Tiwari MK, Yi X. Protocol for preparation of highly durable superhydrophobic bulks with hierarchical porous structures. STAR Protoc 2024; 5:102853. [PMID: 38294911 PMCID: PMC10846377 DOI: 10.1016/j.xpro.2024.102853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/26/2023] [Accepted: 01/12/2024] [Indexed: 02/02/2024] Open
Abstract
Superhydrophobic surfaces face challenges in comprehensive durability when used in extreme outdoor environments. Here, we present a protocol for preparing nanocomposite bulks with hierarchical structures using the template technique. We describe steps for using hybrid nanoparticles of polytetrafluoroethylene and multi-walled carbon nanotube to fill inside and dip on the polyurethane (PU) foam. We then detail procedures for its removal by sintering treatment. The extra accretion layer on the PU foam surface was highlighted to construct hierarchical porous structures. For complete details on the use and execution of this protocol, please refer to Wu et al.1.
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Affiliation(s)
- Yunyun Meng
- Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P.R. China
| | - Binrui Wu
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P.R. China; Key Laboratory of Icing and Anti/De-Icing, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, P.R. China.
| | - Chaoyi Peng
- Zhuzhou Times New Materials Technology CO., LTD, Zhuzhou, Hunan 412007, P.R. China
| | - Suli Xing
- Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P.R. China
| | - Changping Yin
- Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P.R. China
| | - Nan Wu
- Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, P.R. China.
| | - Manish K Tiwari
- Nanoengineered Systems Laboratory, UCL Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK; Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London W1W 7TS, UK
| | - Xian Yi
- Key Laboratory of Icing and Anti/De-Icing, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, P.R. China
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6
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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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7
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Liao J, Lin X, Chen B, Yang M, Liu W, Cao Y, Zhou J, Zhong J. Engineering an Almost All-Waterborne System for Transparent yet Superhydrophobic Surfaces with High Liquid Impalement Resistance. NANO LETTERS 2024; 24:187-194. [PMID: 38088862 DOI: 10.1021/acs.nanolett.3c03676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Realistically, green manufacturing of transparent superhydrophobic surfaces (SHSs) and high liquid impalement resistance for outdoor engineering are very necessary but pretty challenging. To address this, an almost all-waterborne system composed of synthesized partially open-cage fluorinated polyhedral oligomeric silsesquioxane bearing a pair of -OH (poc-FPOSS-2OH), silica sol, and resin precursor is engineered. The transparent SHSs facilely formed by this system are featured with the exclusive presence of wrapped silica nanoparticle (SiNP) dendritic networks at solid-gas interfaces. The wrapped SiNP dendritic networks have a small aggregation size and low distribution depth, making SHSs highly transparent. The Si-O polymeric wrappers render mechanical flexibility to SiNP dendritic networks and thus enable transparent SHSs to resist high-speed water jet impinging with a Weber number of ≥19 800 in conjunction with the extremely low-surface-energy poc-FPOSS-2OH, which is the highest liquid impalement resistance so far among waterborne SHSs, and can rival the state-of-the-art solventborne SHSs.
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Affiliation(s)
- Jingwen Liao
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xilin Lin
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
| | - Boxu Chen
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
| | - Mingjin Yang
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wenfeng Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yingfan Cao
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Junli Zhou
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institution, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jinyi Zhong
- Interdisciplinary Plasma Engineering Centre, Guangzhou Institute of Advanced Technology, Guangzhou 511458, China
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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Zhang H, Liu YQ, Zhao S, Huang L, Wang Z, Gao Z, Zhu Z, Hu D, Liu H. Transparent and Robust Superhydrophobic Structure on Silica Glass Processed with Microstereolithography Printing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:38132-38142. [PMID: 37506049 DOI: 10.1021/acsami.3c08125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Silica glass devices are widely used due to their exceptional physical and chemical properties. However, prolonged usage may result in abrasion and contamination of silica glass devices, adversely affecting the service life. One of the most effective solutions to this issue is surface modification, in which superhydrophobicity with high transmittance and mechanical robustness is highly desired. Inspired by the concept of protective armor, we proposed a novel approach for the direct integration of robust and transparent superhydrophobic structures on silica glass. In this method, microstereolithography synergistic heat treatment processes are used to create a micrometer-scale biomimetic frame on the surface of silica glass and then filled with in situ deposited nanoparticles. The superhydrophobicity of the surface can be obtained through the nanoparticles, and the biomimetic frame can protect the surface from direct contact with external objects to achieve durability. This process allows the preparation of superhydrophobic silica structures on the silica device surface at temperatures below its melting point, which prevents any damage to the devices during the heat treatment. Moreover, up to 90% transmittance does not affect the performance of silica devices. The composite structure maintains a contact angle of over 150° after multiple abrasion tests, verifying the mechanical robustness. This innovative process paves the way for forming a high mechanical robustness and excellent transmittance protective layer on silica glass devices, which expands the application field.
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Affiliation(s)
- Han Zhang
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
| | - Yu-Qing Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
| | - Shaoqing Zhao
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
| | - Long Huang
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
| | - Zhi Wang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China
| | - Zhiyong Gao
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China
| | - Zhiwei Zhu
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, J.S 210094, China
| | - Dahai Hu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
| | - Hua Liu
- Center for Advanced Optoelectronic Functional Materials Research, and Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun, Jilin 130024, China
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9
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Zou W, Luo H, Yang M, Xu J, Zhao N. Biomimetic Robust All-Polymer Porous Coatings for Passive Daytime Radiative Cooling. Macromol Rapid Commun 2023; 44:e2200695. [PMID: 36305388 DOI: 10.1002/marc.202200695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/20/2022] [Indexed: 11/09/2022]
Abstract
Passive daytime radiation cooling (PDRC) has gained considerable attention as an emerging and promising cooling technology. Polymer-based porous materials are one of the important candidates for PDRC application due to their easy processing, free of inorganic particle doping, and multifunctionality. However, the mechanical properties of these porous materials, which are critical in outdoor services, have been overlooked in previous studies. Herein, a nonsolvent-induced phase separation (NIPS) method combined with ambient pressure drying to prepare polyethylene-polysilicate all-polymer porous coatings is developed. The coatings possess a Cyphochilus beetle-like skeleton structure with optimal skeleton size, laminated anisotropy, and high volume fraction (64 ± 1%). These structure features ensure a maximum skeleton density without optical crowding, thus enhancing light scattering and stress dispersion, and balancing optical and mechanical properties. The coatings exhibit significant mechanical robustness (only ≈70 µm thickness reduction after 1000 Taber abrasion cycles at a 750 g load without influencing optical performance), durability, optical properties (a solar reflectance of ≈95% and an average near-normal thermal emittance of ≈96%), and PDRC performance (realizing sub-ambient cooling of ≈3-6 °C at midday with different weather conditions). The work provides a new solution to improve the practicability of polymer-based porous coatings in PDRC outdoor services and other fields.
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Affiliation(s)
- Weizhi Zou
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Heng Luo
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Meng Yang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jian Xu
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing, 100190, P. R. China
| | - Ning Zhao
- Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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10
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Wang Z, Yao D, He Z, Liu Y, Wang H, Zheng Y. Fabrication of Durable, Chemically Stable, Self-Healing Superhydrophobic Fabrics Utilizing Gellable Fluorinated Block Copolymer for Multifunctional Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48106-48122. [PMID: 36240508 DOI: 10.1021/acsami.2c12895] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Limited durability and complex materials restrict the application of superhydrophobic fabrics in daily life. In this work, gellable fluorinated block copolymer poly(dodecafluoroheptyl methacrylate)-block-poly(3-(triethoxysilyl)propyl methacrylate) (PDFMA-b-PTEPM) was used to fabricate adhesive-free superhydrophobic poly(ethylene terephthalate) (PET) fabrics via a simple dip-coating technology and sol-gel reaction. The growth of silica nanoparticles builds up a rough hierarchical structure and provides sol-gel reaction sites of PTEPM segments. The grafting of block copolymer significantly reduced the surface free energy of the fabrics, resulting in an excellent superhydrophobicity with a water contact angle of 160.2°. Benefiting from extensive chemical bond grafting and cross-linking of the PTEPM segment, the fabric exhibits excellent durability in mechanical abrasion, chemical treatment, and washing. The coating has withstood 50 sandpaper abrasion cycles and 400 soft friction cycles and can maintain superhydrophobic properties in various solvents, freezing and a wide pH range. These superhydrophobic fabrics with a long life span possess self-cleaning, anti-icing, oil-water separation, and self-healing capabilities. The multifunctional fabrics developed in this study are durable and easy to produce, possessing the potential for applications in industry and daily life.
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Affiliation(s)
- Zehao Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
| | - Dongdong Yao
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
| | - Zhongjie He
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
| | - Yisong Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
| | - Hongni Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
| | - Yaping Zheng
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi710129, People's Republic of China
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