文献类型：期刊文献

英文题名：Preparation of dendritic-linear polyether-modified silica sol and its application in coatings

作者：Yu, Ping[1];Zhu, Xingxing[1];Gao, Jidong[2];Wu, Shengying[1];Tang, Lei[2];Xiong, Shaobo[2];Wang, Limin[1];Zou, Gang[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Nippon Paint CHINA Co Ltd, Guangzhou, Guangdong, Peoples R China

年份：2016

卷号：13

期号：6

起止页码：963

外文期刊名：JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH

收录：;EI(收录号：20163402734698);WOS:【SCI-EXPANDED(收录号:WOS:000392511900003)】；

基金：This research was financially supported by the National Nature Science Foundation of China (NSFC, 21272069, 20672035) and the Fundamental Research Funds for the Central Universities and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences. We also thank Nippon Paint (China) Co., Ltd.

语种：英文

外文关键词：Dendritic-linear polyether; Silica sol; Stain resistance; Coating

摘要：Dendritic-linear polyether-modified silica sol (DLPS) was synthesized using diethylenetriamine, methyl acrylate, epoxy-terminated polyether, triethoxysilane, and silica sol in five steps. The prepared sol was stable and transparent. DLPS was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and particle size distribution analysis. Subsequently, DLPS was examined as a stain-resistant additive in (paint) coatings. The surface of the sample coatings with and without DLPS additive was examined by scanning electron microscopy, energy-dispersive spectrometry analysis, and contact angle analysis. The results showed that the stain-resistant additive appeared on the surface of the coating, which made the surface more compact and hydrophilic. The performance of the stain-resistant additive was examined in commercial outdoor emulsion coatings (WB200). The result showed that the presence of the stain-resistant additive could enhance the stain resistance performance of paint. Furthermore, the stain resistance performance improved with increasing amounts of additive. Specifically, the stain resistance performance of paint improved by 40.63% in the presence of 6 wt% DLPS. Therefore, the current findings demonstrate the importance of DLPS in advancing progress and application in the paint coating industry.