核壳结构丙烯酸酯乳液的合成及性能研究  

Synthesis and Performance of Core-shell Structure Acrylic Emulsion

作　　者：甘孟瑜[1] 刘娟[1] 杨治国[1] 

机构地区：[1]重庆大学化学化工学院,400044

出　　处：《涂料工业》2005年第6期5-8,62,共5页Paint & Coatings Industry

摘　　要：采用预乳化工艺、半连续种子乳液聚合法制得具有核壳结构的丙烯酸酯乳液。研究了乳液的软硬单体配比、引发剂、乳化剂及聚合温度对乳液性能的影响。结果表明:软硬单体比例为1∶1.25～1∶1、引发剂和乳化剂用量分别为0.5%和3%～4%、聚合温度为(80±1)℃时得到的乳液具有优良的综合性能。采用FT-IR、TEM、DSC对聚合物乳液的结构进行了表征,证实了核壳结构的存在。The title core-shell structure acrylic emulsion has been developed by use of pre-emulsification technology and semi-continuous seed emulsion polymerization. The influence of ratio of hard and soft monomers, initiator, emulsifier, and polymerization temperature on performance of emulsion is studied. It has shown that a good performance emulsion is obtained at the following conditions: ratio of hard and soft monomers 1∶1~ 1∶1.25, initiator 0.5%, emulsifier 3%～4% and temperature (80±1) ℃. The structure of the title emulsion is characterized by use of FT-IR, TEM and DSC, indicating existing of core-shell structure.

关 键 词：丙烯酸酯乳液 核壳结构 性能研究 合成 种子乳液聚合 预乳化工艺 聚合物乳液 单体配比 乳液性能 综合性能 引发剂 乳化剂 半连续 TEM DSC 

分 类 号：TQ633[化学工程—精细化工] TQ316.334