涂料用丙烯酸酯乳液聚合影响因素研究  

Study on influence factors on acrylic ester latex

作　　者：刘立新[1] 赵晓非[1] 谭小红[1] 姜婷婷[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：《化学工程师》2006年第11期1-3,共3页Chemical Engineer

基　　金：黑龙江省自然科学基金项目(TB2005-25);大庆市科委资助项目

摘　　要：本文对涂料用丙烯酸酯乳液聚合反应的影响因素进行研究,证明当十二烷基苯硫酸钠(SDS)与OP-10的比例为1∶3时,乳液的稳定性好;当乳化剂用量为4%时乳液机械稳定性和稀释稳定性都能达到要求;适当提高预乳化体系的温度(大于45℃),可以在相对短的预乳化时间内得到稳定的预乳化液。加料时间大于45m in可以得到稳定的预乳化液。搅拌速度过快或过慢都对预乳化液稳定性不利。聚合反应中随着活性交联单体丙烯酰胺加入量的增加,涂膜吸水率先下降然后又增加,丙烯酰胺含量为2%时,涂膜吸水率最低。This paper studied the different factors that influence acrylic ester latex. When the ration of SDS ： OP - 10 = 1 ： 3, the latex had good stability ; the proper concentration of the mixed emulgent was 4% , and the ester latex had required mechanical stability and dilute stability. Properly increased thetemperature of pre - latex （ 〉45℃ ） achieved good stability within short time. The proper enrich time is 45min, water absorption of the emulsion membrane increased with the increased of amount of acrylamide monomer firstly and then decreased, the optimal dosage of aerylamide was 2%.

关 键 词：丙烯酸酯 乳液聚合反应 影响因素 

分 类 号：TQ331.4[化学工程—橡胶工业]