Preparation of Superhydrophobic Coating Based on Fatty Chain Siloxanes and the Influence Factors

Xiao-dan CHEN; Li HE; Yu ZENG; Rui LIU; Qian MA; Yu-fang CHEN; Hua-jie LAI; Tao JIN

doi:10.14028/j.cnki.1003-3726.2018.05.006

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Preparation of Superhydrophobic Coating Based on Fatty Chain Siloxanes and the Influence Factors

更新时间：2022-09-05

- Preparation of Superhydrophobic Coating Based on Fatty Chain Siloxanes and the Influence Factors
- Polymer Bulletin Vol. 31, Issue 5, Pages: 45-50(2018)
- 作者机构：
  
  1.中国科学院广州化学研究所, 广州 510641
  2.广州中科检测技术服务有限公司, 广州 510641
  3.中国科学院大学, 北京 100049
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2018.05.006
  CLC：
- Published：20 May 2018，
  
  Received：08 March 2018，
  
  Revised：19 March 2018，
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Xiao-dan CHEN, Li HE, Yu ZENG, Rui LIU, Qian MA, Yu-fang CHEN, Hua-jie LAI, Tao JIN. Preparation of Superhydrophobic Coating Based on Fatty Chain Siloxanes and the Influence Factors. [J]. Polymer Bulletin 31(5):45-50(2018)
DOI：

Xiao-dan CHEN, Li HE, Yu ZENG, Rui LIU, Qian MA, Yu-fang CHEN, Hua-jie LAI, Tao JIN. Preparation of Superhydrophobic Coating Based on Fatty Chain Siloxanes and the Influence Factors. [J]. Polymer Bulletin 31(5):45-50(2018) DOI： 10.14028/j.cnki.1003-3726.2018.05.006.

摘要

采用分段控温投料的方式，通过简单的一锅法成功地合成了脂肪链硅氧烷分散液，并制备了基于玻璃表面的超疏水涂层，涂层的水接触角和滚动角分别可以达到158°和2°。研究了催化剂、水及脂肪链硅氧烷的浓度和反应时间对涂层形貌和润湿性能的影响，脂肪链硅氧烷的引入可同时为涂层提供多级粗糙结构和低表面能基团。此外，在含水量低的条件下，随着催化剂含量、含水量和脂肪链硅氧烷含量的增加，涂层的超疏水性得到改善。然而，过多的催化剂或水或长链硅氧烷的加入会导致涂层破裂，由此可确定分散液合成的最佳反应条件。

Abstract

A kind of fatty chain siloxane dispersion was successfully synthesized by segmentally controlling temperature and feedingvia two-stage temperature control and feeding

and the associated coating was fabricated on glasses. The water contact angle and the rolling angle of the coatings could reach to 158° and 2°

respectively. Besides

the effects of the concentration of catalyst

water and siloxanes as well as and the reaction time on the morphology and wettability of the coating were investigated. With low water content

the superhydrophobicity of the coating is improved with the increase of catalyst content

water content and the content of catalyst

water and fatty chain siloxane. However

the excessively addition of excess catalyst

or water or long-chain siloxane could lead to cracking of the coating. Thereby the optimal reaction conditions for the synthesis of the dispersion could be determined. More importantly

the introduction of the fatty chain of siloxane could provide the coating with both hierarchical structure and low surface energy groups.

关键词

溶胶-凝胶脂肪链硅氧烷分散液超疏水涂层形貌

Keywords

Sol-gelFatty chain siloxaneDispersionsSuperhydrophobic coatingMorphology

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