基于磷酸酯乳化剂的丙烯酸乳胶及其漆膜性能影响研究  

Study on Factors Affecting Performance of Acrylic Latex Based on Phosphate Emulsifier

作　　者：王军[1] 李为立[1] 徐泽孝 邱振宇[1] 王绍明[1] 徐杰[1] 金磊[1] 张鑫 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003 [2]苏州吉人高新材料股份有限公司,江苏苏州215143

出　　处：《涂料工业》2017年第5期38-43,共6页Paint & Coatings Industry

基　　金：国家自然基金面上项目(项目编号:51673088);中国国家博士后基金资助(项目编号:2016M601750);江苏省博士后基金资助(项目编号:1501091c);江苏科技大学2016年度本科创新计划

摘　　要：采用磷酸酯类乳化剂,通过乳液聚合方式制备了新型水性金属防腐乳胶,研究了乳化剂种类、硬单体比例以及体系玻璃化转变温度的变化对丙烯酸乳胶以及漆膜性能的影响。对制得的乳胶尺寸与分散性进行了表征;研究了漆膜的力学性能及耐腐蚀性等性能。结果表明:使用磷酸酯乳化剂,由于在体系中引入了磷酸根离子,其可与金属离子产生络合作用,能有效提高丙烯酸酯乳胶的耐腐蚀性:同时以苯乙烯作为硬单体主体,设定适当的玻璃化转变温度,可使最终的丙烯酸乳胶体系具有良好的力学性能及耐腐蚀性。In this paper, a novel acrylic latex for corrosion protection of metals was pre pared through emulsion polymerization by using phosphate as the emulsifier. The influential factors on the properties of acrylic latexes and the cured films were investigated, including the type of emulsifiers, ratios of hard monomers and glass transition temperature of acrylic latexes. The properties of latexes were studied by means of particle size analysis. In addition, water ab- sorption test, polarization curve test and mechanical properties test were used to characterize the properties of the cured films. The results showed that the used phosphate emulsifier could complex with metallic ion to improve the corrosion resistance of the acrylic latexes. Meanwhile, the synthesized acrylic latex exhibited good mechanical and anticorrosive properties by using styrene as the main hard monomer with appropriate glass transition temperature.

关 键 词：丙烯酸乳胶 乳液聚合 磷酸酯乳化剂 水性树脂 耐腐蚀性 

分 类 号：TQ630.4[化学工程—精细化工]