多孔结构耐磨超疏水薄膜的制备及性能  

Preparation and properties of wear-resistant superhydrophobic films with porous structure

作　　者：韦任轩 薛朝华 WEI Renxuan;XUE Chaohua(College of Bioresources Chemical&Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]陕西科技大学轻化工程国家级实验教学示范中心,陕西西安710021

出　　处：《精细化工》2021年第5期914-919,共6页Fine Chemicals

基　　金：国家自然科学基金(51572161)。

摘　　要：为了获得持久稳定的超疏水材料,将聚偏二氟乙烯共六氟丙烯共聚物[P(VDF-HFP)]和十六烷基三甲氧基硅烷(HDTMS)改性的Al_(2)O_(3)纳米粒子进行复合并通过溶剂/非溶剂诱导相分离法制备了一种耐磨超疏水薄膜。采用SEM、能谱分析仪和接触角测量仪分别对薄膜的表面微观结构、化学组成、水接触角和滚动角进行了表征。结果表明,制备的薄膜呈多孔微纳米复合微观结构,具有优异的自清洁性和耐机械摩擦性,即使经过360个周期的砂纸(800目)磨损(100 g载重)后仍保持超疏水性,水接触角为155°±2°,滚动角为5°±2°;此外,薄膜具有优异的耐酸/碱溶液和紫外灯照射稳定性。In order to obtain durable superhydrophobic materials, a wear-resistant superhydrophobic film was prepared by embedding hexadecyltrimethoxysilane(HDTMS) modified Al_(2)O_(3) nanoparticles in poly(vinylidene fluoride co-hexafluoropropylene) [P(VDF-HFP)] via a phase separation technology. The morphology, chemical composition and hydrophobic properties of the film were characterized by SEM, EDS and contact angle measuring instrument. The results showed that the prepared film composed of a porous micro-nano microstructure, and had excellent self-cleaning and abrasion resistance. The film maintained superhydrophobic after 360 cycles of sandpaper abrasion(800 mesh) under 100 g of loading, the water contact angle was 155°±2°, and the rolling angle was 5°±2°. In addition, the film had excellent resistance to solutions with different pH and UV irradiation.

关 键 词：超疏水性 聚偏二氟乙烯共六氟丙烯 相分离 三氧化二铝 功能材料 

分 类 号：TB34[一般工业技术—材料科学与工程]