Facile fabrication of polysiloxane micro/nanostructure with controllable morphology and super-hydrophobicity

被引：17

作者：

Xi, Yanni ^{[1
]}

Sun, Yi ^{[1
]}

Li, Wulong ^{[1
]}

Li, Zhanxiong ^{[1
,2
]}

机构：

[1] Soochow Univ, Coll Text & Clothing Engn, 199 Renai Rd,Ind Pk, Suzhou 215021, Peoples R China

[2] Natl Engn Lab Modern Silk, Suzhou 215123, Peoples R China

来源：

POLYMER | 2021年 / 213卷

基金：

中国国家自然科学基金;

关键词：

Controllable rough structure; Trichlorosilane; Liquid phase method; Super-hydrophobic; FILAMENT GROWTH; SURFACES; WETTABILITY; SOL; POLYMERIZATION; MONOLAYERS; PARTICLES; COATINGS; LAYERS; FILM;

D O I：

10.1016/j.polymer.2020.123317

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study, hydrophobic fabrics with controllable rough surfaces were prepared by treating a polyester (PET) fabric with methyltrichlorosilane (MTS), phenyltrichlorosilane (PTS), vinyltrichlorosilane (VTS), and tridecyl-fluomoctyltrichlorosilane (PFOTS) using a liquid phase method. The formation mechanism of the fabrics was investigated using X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Although the WCA of the fabrics decreased after mechanical abrasion, their hydrophobic surfaces exhibited good durability. Four controllable rough structures were observed and show its unique properties. MTS@PET showed a hollow spherical structure, and hence was found to have potential to encapsulate medicines for health care. On the other hand, PTS@PET showed a hollow bowl-like structure and strong absorbance to water. The TCS/PFOTS@PET with spherical microstructure was amphiphobic, according to that the contact angles of it to water and n-tetradecane were 153.3 +/- 3.0 degrees and 133.4 +/- 4.5 degrees, respectively. The WCA and sliding angle (SA) of VTS@PET, which showed a nanofilament structure, were 156.4 +/- 3.0 degrees and 3.0 +/- 2.0 degrees, respectively, indicating that its surface was superhydrophobic.

引用

页数：8