文献类型：期刊文献

英文题名：Fabrication of self-assembled hydrophobic fluorinated silica particulate film

作者：Guo, Yudi[1,2,3];Zhao, Erqing[4];Guo, Xiaowei[1];Tang, Dongyan[2]

第一作者：Guo, Yudi

通讯作者：Tang, DY[1]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China;[2]Harbin Inst Technol, Dept Chem, Harbin 150001, Heilongjiang, Peoples R China;[3]Inst Oceanol, Res & Dev Ctr Marine Sci & Technol, Nantong 226006, Peoples R China;[4]Henan Inst Sci & Technol, Sch Chem & Chem Engn, Xinxiang 453003, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Harbin Inst Technol, Dept Chem, Harbin 150001, Heilongjiang, Peoples R China.

年份：2019

卷号：218

起止页码：27-35

外文期刊名：JOURNAL OF FLUORINE CHEMISTRY

收录：;Scopus(收录号：2-s2.0-85057573403);WOS:【SCI-EXPANDED(收录号:WOS:000457820200004)】；

基金：This work was supported by Science & Technology Basic Research Program of Nantong (Grant No. MS12015123); National Natural Science Foundation of China (Grant No. 41606096); and National Natural Science Foundation of China (Grant No. 51502318).

语种：英文

外文关键词：XPS analysis; Self-assembling; Hydrophobicity; Fluoroacrylate film

摘要：Hydrophobic fluorinated particulate films were fabricated by coupling Langmuir-Blodgett silica (LB-SiO2) particulate monolayers with fluoroacrylate polymer, and the depth distributions of chemical compositions were studied. The resultant fluorinated particulate films show surface hydrophobic property with water contact angles (WCA) of 123 degrees (300 nm) and 125 degrees (550 nm), which is dominated in Wenzel wetting state. The surface F/C ratio is only 0.09 at 20 degrees, which is slightly higher than 0.07 at 60 degrees. Fitting results of C1s and O1s high-resolution spectra at 20 degrees and 60 degrees indicate the outmost surface is mainly occupied by fluoroacrylate polymer main chains and the ester side chains stretch toward inner surface and thus hydrophobic fluorinated groups in self-assembled fluoroacrylate film cannot efficiently segregate to the outer surface, which results in low surface F/C ratio and surface WCA.