Study on Preparation of Nano-silica/Polymer Containing Short Fluoroalkyl Chains Composite Emulsion and Its Water Repellency

摘要：

A nano-silica/polymer containing short fluoroalkyl chains composite emulsion (PFA-SiO2) was prepared via in-situ emulsion polymerization. The chemical composition, particle size and thermal stability of the composite emulsion were characterized by Fourier-transform infrared (FT-IR) spectrometry, particle size analyzer and thermal gravimetric analysis (TGA). The water repellency of the composite emulsion was tested through treating the polyester fabric. The surface morphology and elemental composition of treated fabrics were respectively characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The results showed that the thermal stability of the composite emulsion had been enhanced, and it was of narrow size distribution with average particle size 62.15 nm. The successful encapsulation of silica into the composite emulsion increased surface roughness of the treated fabric which exhibited superhydrophobicity with a water contact angle of 155°.

关键词： in-situ emulsion polymerization composite emulsion SiO2 water repellency

作者: XU Lihui PENG Hongyang CAI Zaisheng

作者单位: College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, P.R.China

会议类型: 国际会议

会议名称: The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)

会议地点: 上海

会议语种:英文

页码: 314-317

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）