多级结构超疏水表面的制备与性能分析  

Preparation and Performance Analysis of Superhydrophobic Surface with Multilevel Structure

作　　者：位振 戴飞 何强 WEI Zhen;DAI Fei;HE Qiang(Civil Aviation Safety Engineering College of Civil Aviation Flight Academy of China,Guanghan 618307,Sichuan,China;School of Mechanical and Electrical Engineering,Gansu Agricultural University,Lanzhou 730000,China)

机构地区：[1]中国民用航空飞行学院民航安全工程学院,四川广汉618307 [2]甘肃农业大学机电工程学院,兰州730000

出　　处：《材料导报》2024年第9期256-260,共5页Materials Reports

基　　金：2023年四川省科技计划项目(23NSFSC1923)。

摘　　要：随着橡胶产品应用的广泛拓展,具备超疏水性能的橡胶产品越来越受关注。然而如何便捷、大规模地制备超疏水表面对橡胶的疏水应用具有重要的意义。本工作通过在未硫化的氟硅橡胶表面喷涂一层二氧化硅粒子,构造第一层级微观结构,然后通过模板法在氟硅橡胶表面成功地复制了不锈钢编织网的结构,构造了第二层级结构,并分析了构造的氟硅橡胶表面的官能团存在情况、微观结构、疏水性能以及液滴弹跳和自清洁性能。结果表明:通过模板法和喷涂技术在氟硅橡胶表面制备的多级微观结构为液滴提供了支持力和排斥作用,其静态接触角为(156.7±0.97)°,滚动角为1°。并且构建的多级结构表面具有优异的液滴弹跳性能和良好的自清洁性能。在氟硅橡胶表面构建多级结构可以极大地提升表面的疏水性能,为制备超疏水表面提供一种新的思路。With the extensive application of rubber products,more and more attention has been paid to rubber products with superhydrophobic properties.However,how to prepare superhydrophobic surface conveniently and on a large scale is of great significance to the application of rubber.In this work,a layer of silicon dioxide particles was sprayed on the surface of unvulcanized fluorosilicone rubber to construct the first-level microstructure.Then the structure of stainless steel woven net was successfully replicated on the surface of fluorosilicone rubber by template method,and the second hierarchical structure was constructed.The existence of functional groups,microstructure,hydrophobicity,droplet bounce and self-cleaning performance of the surface of the fluorosilicone rubber were analyzed.The results show that the multilevel microstructure prepared on the surface of fluorosilicone rubber by template method and spraying technology provide the supporting force and repelling effect for the droplets,and its static contact angle is(156.7±0.97)°and rolling angle is 1°.And the constructed multilevel structure surface had excellent droplet bouncing performance and good self-cleaning performance.Constructing multilevel structure on the surface of fluorosilicone rubber can greatly improve the hydrophobicity of the surface,which provided a new idea for preparing superhydrophobic surface.

关 键 词：多级结构 喷涂法 模板法 氟硅橡胶 超疏水 

分 类 号：TQ333[化学工程—橡胶工业]