高校化学工程学报2012，Vol.26Issue(1)：112-118,7.
含氟丙烯酸酯共聚物结晶与涂膜表面润湿性能研究
Study on Crystallization and Surface Properties of Fluorinated Acrylate Copolymers
张杏娟 1陈慧琴 1皮丕辉 1文秀芳 1程江 1杨卓如1
作者信息
- 1. 华南理工大学 化学与化工学院,广东广州510640
- 折叠
摘要
Abstract
A series of fluorinated acrylate copolymers were synthesized by using monomers of perfluoroalkylethyl methylacrylate and acrylate with various length of side chain (n=4, 8, 12, 16 and 18, respectively) as raw materials. The chemical structure and surface chemical composition of the prepared copolymer coatings were characterized by infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). Combining with the contact angle test, the corresponding contact angles of the coatings were measured, and their surface energy were analyzed. The crystallization of fluorinated acrylate copolymers were studied by differential scanning calorimetry (DSC), X-ray diffractometer (XRD) and polarizing microscopy (POM) for further analyzing the influence of different lengths of side chains on the water- and oil- repellent surface. The results show that the copolymers remain isotropic and have no crystallizability under room temperature when the acrylate's side chain length n=4, 8 and 12; whereas when n=16 and 18, the crystallization can occur and the schlieren texture of layered smectic A phase can be obtained. Especially, when n=16, the alkyl side chains are more closely arranged and have a better synergy effect on the crystallization of fluorine-containing polymers, which indicates that the copolymer has excellent crystalline regularity and low surface energy, thus improving the stability of its water- and oil-repellence.关键词
含氟丙烯酸酯共聚物/表面性能/结晶性/疏水疏油Key words
fluorinated acrylate copolymers/ surface properties/ crystallization/ water- and oil-repellence分类
化学化工引用本文复制引用
张杏娟,陈慧琴,皮丕辉,文秀芳,程江,杨卓如..含氟丙烯酸酯共聚物结晶与涂膜表面润湿性能研究[J].高校化学工程学报,2012,26(1):112-118,7.
