添加剂对纯丙乳液性能的影响研究  

Effects of Additives on Properties of Pure Acrylate Emulsion

作　　者：刘立新[1] 赵晓非[1] 谭小红[1] 张建民[1] 杨毅[1] 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318

出　　处：《化学建材》2006年第6期20-22,共3页Chemical Materials for Construction

基　　金：黑龙江省自然科学基金项目(TB2005-25)

摘　　要：以甲基丙烯酸甲酯和丙烯酸丁酯为单体,以十二烷基硫酸钠和OP-10作为混合乳化剂,采用半连续种子乳液聚合法合成了丙烯酸酯乳液,用于聚合物水泥基复合防水涂料。考察了各种助剂对纯丙乳液黏度和吸水率的影响。适量的增塑剂可提高涂膜的低温柔性;增稠剂能明显提高乳液的黏度,但防水性能变差。通过实验得出:增塑剂的最佳加入量为5%,松节油的最佳加入量为6%,增稠剂的最佳加入量为0.8%。Acrylate emulsion was prepared by way of semi-continuous seeded emulsion polymerization with methyl methacrylate （MMA） and butyl acrylate （BA） as monomers, SDS and OP-10 as emulsifiers for mixing. This emulsion was used for polymer cement compounded waterproof coating. Effects of various aids on viscosity and water absorption of pure acrylate emulsion were investigated. Testing results showed that proper content of plasticizing agent could improve low temperature flexibility of the coat, addition of thickener could enhance markedly viscosity of the emulsion whereas reduce water resistance. Optimal dosage of plasticizing agent was 5%, that of turpentine 6% and that of thickener 0.8%.

关 键 词：聚合物水泥基防水涂料 丙烯酸酯乳液 防水性能 黏度 吸水率 

分 类 号：TU561.65[建筑科学—建筑技术科学]