Robust Polystyrene/Fluorinated Silica Superhydrophobic Composite Coatings with Rapid Curing at Room Temperature Prepared by One-Step Spraying  

作　　者：Yong Wang Lihua Yu Junhua Xu Kai Jing Ningxin Mao 

机构地区：[1]School of Materials Science and Engineering,Jiangsu University of Science and Technology,2 Mengxi Road,Zhenjiang City,Jiangsu Province,China

出　　处：《Journal of Bionic Engineering》2023年第6期2742-2754,共13页仿生工程学报（英文版）

基　　金：This study was supported by the National Natural Science Foundation of China(Grant Number 52172090 and 52071159).

摘　　要：Superhydrophobic materials are severely limited in their applications due to their weak mechanical properties and complex preparation process.In this paper,polystyrene/fluorinated silica(PS/SiO_(2))superhydrophobic composite coatings were prepared on the surface of 304 stainless steel using a simple one-step spraying method.The effects of different PS contents on the wettability as well as the wear properties of the samples were investigated.SiO_(2) was encapsulated in polystyrene to form a structure similar to cement encapsulated stones.With the addition of PS,a mound-like structure was formed on the sample surface,and a more optimized micro–nano structure was obtained when the content of PS was 0.6 g.At this time,the sample exhibited excellent wettability with a contact angle of 157.86°and a sliding angle of 0.84°.In addition,the contact angle of 151.09°was achieved after 180 cm of friction under a 100 g load and the composite coating prepared by this method also has excellent chemical stability,water impact resistance,corrosion resistance,and self-cleaning properties.This opens up new possibilities for the development of simple and robust superhydrophobic materials.

关 键 词：SUPERHYDROPHOBIC Room temperature curing Mechanical durability Corrosion resistance SELF-CLEANING 

分 类 号：TG174.4[金属学及工艺—金属表面处理]