文章摘要
徐兵兵,王斌,黄月文.改性SiO2/聚硅氧烷无氟超疏水涂层的制备及性能[J].精细化工,2019,36(10):0
改性SiO2/聚硅氧烷无氟超疏水涂层的制备及性能
Preparaion and performance of Fluorine-free Superhydrophobic Coating based on Modified Silica and Polysiloxane
投稿时间:2019-02-04  修订日期:2019-04-17
DOI:
中文关键词: 二氧化硅  十六烷基三甲氧基硅烷  微纳米糙结构  超疏水  耐磨损
英文关键词: silica  HDTMS  micro-nano structure  superhydrophobicity  wear resistance.
基金项目:广州市科技计划项目
作者单位E-mail
徐兵兵 中科院广州化学研究所 782361830@qq.com 
王斌 中科院广州化学研究所 wangbin@gic.ac.cn 
黄月文 中科院广州化学研究有限公司  
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中文摘要:
      为了提高基体材料的防污能力,本文在基体表面制备了一种无氟超疏水复合涂层。首先,使用十六烷基三甲氧基硅烷(HDTMS)对二氧化硅(SiO2)微纳米颗粒进行疏水改性,其次,将改性后的SiO2颗粒与有机硅烷混合,利用硅烷的水解、聚合在基体材料的表面得到一层稳定的无氟超疏水复合疏水涂层。采用FTIR、TGA、SEM、AFM和接触角测量仪对涂层的化学组成、表面微观结构和疏水性能进行表征。结果表明:复合涂层表面具有微纳米尺度的粗糙结构,并具有优异的自清洁性和耐磨损性;未磨损前接触角达151°,磨损后接触角进一步提高至161°。
英文摘要:
      In order to improve the antifouling ability of the base material, a fluorine-free superhydrophobic composite coating was prepared on the surface of the substrate. In this work, the Silica (SiO2) micro-nanoparticles were modified by hexadecyltrimethoxysilan (HDTMS). Subsequently, the modified SiO2 micro-nanoparticles were blended with organic silane. Finally, a stable fluorine-free hydrophobic composite coating on the surface of the substrate was prepared via the hydrolysis and polymerization of organic silane on the modified SiO2 micro-nanoparticles. The chemical compositions, morphology and hydrophobic properties of the coatings were characterized by Fourier Transform Infrared Spectrum (FTIR), Thermogravimetric analyses(TGA) , Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and water contact angle (WCA) measurements, respectively. The results show that the composite coating surfaces had rough micro-nano scale structure, with excellent self-cleaning properties and wear resistance. Compared with the coating without the abrasion treatment, the contact angle of the coating with an abrasion treatment increased from 151° to 161°.
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