Rewritable superhydrophobic coatings fabricated using water-soluble polyvinyl alcohol

被引：87

作者：

Gong, Xiao ^{[1
,3
]}

Zhang, Ligui ^{[1
]}

He, Shuang ^{[1
]}

Jiang, Shaohua ^{[2
]}

Wang, Wufeng ^{[4
]}

Wu, Yongzhong ^{[5
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[2] Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China

[3] Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

[4] Adv Engn Technol Res Inst Zhongshan City, Zhongshan 528400, Peoples R China

[5] Suzhou Univ Sci & Technol, Sch Mech Engn, Suzhou 215009, Peoples R China

来源：

MATERIALS & DESIGN | 2020年 / 196卷

基金：

中国国家自然科学基金;

关键词：

Spray-coating; Fluorine-free; Superhydrophobic; Self-cleaning; NANOFIBROUS MEMBRANES; NANOROD COMPOSITE; ROBUST; ANTIBACTERIAL; TRANSPARENT; SURFACES; DRIVEN; OXIDE;

D O I：

10.1016/j.matdes.2020.109112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Superhydrophobic surface has potential applications in various fields due to its excellent water repellency. In particular, fluorine-free superhydrophobic film has attracted extensive attentions. In this study, an eco-friendly and rewritable superhydrophobic coating is successfully prepared by a simple spray-coating method. Hydrophilic silica nanoparticles are immobilized on a substrate by water-soluble polyvinyl alcohol (PVA), and then the surface is further modified by polydimethylsiloxane (PDMS) to obtain a superhydrophobic coating. The prepared coating has a water contact angle of 160 degrees, and exhibits good stability. Most importantly, when the superhydrophobic coating is no longer needed, it can be removed and the substrate can be reused. The eco-friendly and rewritable superhydrophobic coating should have promising potentials in daily life. (c) 2020 The Authors. Published by Elsevier Ltd.

引用

页数：10

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