化工学报2011，Vol.62Issue(4)：1143-1149,7.
核壳型纳米SiO2/含氟聚丙烯酸酯复合乳液的合成与表征
Synthesis and characterization of core-shell nano～SiO2/fluorinated polyacrylate emulsion
摘要
Abstract
The core-shell nano-SiO2/fluorinated polyacrylate emulsion containing fluorine in the shell was synthesized via in-situ emulsion polymerization in the presence of reactive anionic emulsifier and nonionic emulsifier, with the core phase consisting of nano-SiO2 modified by γ- (methacryloxy) propyltrimethoxy silane (KH-570), methyl methacrylate (MMA), butyl acrylate (BA) and acrylic acid (AA), and the shell phase monomer consisting of methyl methacrylate (MMA), butyl acrylate (BA) and dodecafluoroheptyl methacrylate (DFMA). The influence of the amount of nano-SiO2 and fluorine-containing monomer (DFMA) on the emulsion polymerization process and surface hydrophobic properties of the latex films was discussed. The nano-SiO2/fluorinated polyacrylate emulsion and its films were characterized by transmission electron microscopy (TEM), differential scanning calorimetry (DSC), thermogravimetry (TG), contact angle (CA) and X-ray photoelectron spectroscopy (XPS) analysis. The results showed that the resultant particles had core-shell structure and a gradient distribution of fluorine in the latex films was formed. The core-shell nano-SiO2/fluorinated polyacrylate latex film showed higher hydrophobicity and thermal stability comparing with fluorinated polyacrylate latex film due to the addition of nano-SiO2.关键词
原位乳液聚合/改性纳米SiO2/含氟丙烯酸酯/核壳结构/疏水性Key words
in-situ emulsion polymerization/ modified nano-SiO2/ fluorinated polyacrylate/ core-shell structure/ hydrophobicity分类
化学化工引用本文复制引用
马英子,肖新颜..核壳型纳米SiO2/含氟聚丙烯酸酯复合乳液的合成与表征[J].化工学报,2011,62(4):1143-1149,7.基金项目
国家自然科学基金项目(20876065,21076092). （20876065,21076092）
