Page 210 - 精细化工2020年第2期

第 37 卷第 2 期 精 细 化 工 Vol.37, No.2
202 0 年 2 月 FINE CHEMICALS Feb. 2020

建筑用化学品
短氟碳链含氟硅烷偶联剂及其疏水涂层的构建

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金大钺 ，张先伟 ，范 宏 ，Bittencourt Carla ，Dubois Philippe
〔1. 浙江大学化学工程与生物工程学院，化学工程联合国家重点实验室，浙江 杭州 310027；2. 蒙斯大
学，材料与聚合物创新研究中心（CIRMAP），比利时 蒙斯 B-7000〕
摘要：以三氟丙基甲基环三硅氧烷（D 3 F）、二甲基氯硅烷、甲基二氯硅烷、乙烯基三甲氧基硅烷（VTMS）为
主要原料，通过阴离子开环聚合和硅氢加成反应合成了一系列短氟碳链含氟硅烷偶联剂。载玻片表面经纳米二
氧化硅溶胶涂膜和硅烷偶联剂表面修饰得到疏水涂层。探究了不同硅烷偶联剂对于涂层疏水性、附着力、硬度、
透过率等性能的影响。结果表明，同类型含氟硅烷偶联剂中氟含量越大，其修饰的涂层接触角越大；相似相对
分子质量及氟含量情况下，直链型含氟硅烷偶联剂修饰的涂层疏水性优于支链型修饰的涂层。经含氟硅烷偶联
剂修饰的疏水涂层中，接触角最大的是由聚合度为 9 的支链型含氟硅烷偶联剂（DF3）修饰的涂层，可达 141.6°。
疏水涂层的附着力均达 1 级，硬度均达 H，可见光透过率高于 82.9%，具有良好的自清洁性能。
关键词：含氟硅烷偶联剂；疏水涂层；溶胶凝胶法；自清洁；建筑用化学品
中图分类号：TB34 文献标识码：A 文章编号：1003-5214 (2020) 02-0412-09

Synthesis of fluoride-containing silane coupling agents with short fluorocarbon
chains and its hydrophobic coating construction

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Jin Dayue , Zhang Xianwei , Fan Hong , Bittencourt Carla , Dubois Philippe
（1. State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang
University, Hangzhou 310027, Zhejiang, China; 2. Center of Innovation and Research in Materials and Polymers
(CIRMAP), University of Mons, B-7000 Mons, Belgium）
Abstract: A series of fluoride-containing silane coupling agents with short fluorocarbon chains were synthesized
via anionic ring-opening polymerization and hydrosilylation reaction using trifluoropropylmethylcyclotrisiloxane
(D 3 F), dimethylchlorosilane, methyldichlorosilane and vinyltrimethoxysilane (VTMS) as raw materials. The
surface of the glass slide was coated by nano-silica sol via spin-coating method. Then, the coating was
modified by silane coupling agents to obtain hydrophobic coatings. The effects of different silane coupling
agents on the hydrophobicity, adhesion, hardness and transmittance of coatings were investigated. The
results showed that for the same type fluoride-containing silane coupling agents, the higher the content of
fluorine, the higher the contact angle of the modified coating. For the fluoride-containing silane coupling
agents with similar molecular mass and fluorine content, the hydrophobicity of the coating modified by
linear type fluorosilane coupling agent was better than that modified by branched chain type fluorosilane
coupling agent. Among the coatings modified by the prepared fluoride-containing silane coupling agents,
the coating modified by the branched type with a degree of polymerization of 9(DF3) showed the biggest
contact angle, about 141.6°. The adhesion level of the hydrophobic coatings in all cases reached to level 1
and the hardness reached to H, while the visible light transmittance was above 82.9%. In addition, the
hydrophobic coatings had good self-cleaning properties.
Key words: fluoride-containing silane coupling agents; hydrophobic coating; sol-gel method; self-cleaning;
building chemicals

收稿日期：2019-07-07; 定用日期：2019-08-23; DOI: 10.13550/j.jxhg.20190656
基金项目：国家重点研发计划（2017YFE0116000）
作者简介：金大钺（1993—），男，硕士生。联系人：范 宏（1963—），男，教授，E-mail：hfan@zju.edu.cn。