核壳型苯丙微乳液的配方设计与性能研究  

Study on designing particle structure and characterization of styrene-acrylic microlatex with core-shell structure

作　　者：揭芳芳 龚立 

机构地区：[1]重庆化工职业学院,重庆400020 [2]重庆市环境检测中心,重庆401147

出　　处：《精细与专用化学品》2014年第8期50-54,共5页Fine and Specialty Chemicals

基　　金：重庆市高等教育教学改革研究课题"高职精细化学品生产技术课程改革与实践(课题编号:1203215)

摘　　要：结合粒子设计以及"Winsor I-like"型微乳液聚合法,合成了具有核壳结构的苯乙烯-丙烯酸酯微乳液。考察了核壳单体用量、苯乙烯等用量对微乳液粒径及性能的影响。结果表明:核单体用量为30%时,聚合物微乳液的粒径最小,苯乙烯用量不宜超过30%,NMA为2%时,添加0.3%的DVB能使成膜物吸水率由10.67%下降至4.32%。The idea of designing particle structure was introduced,and the styrene-acrylic microlatex with coreshell structure were successfully synthesized.The influences of amount of core monomer and styrene on particle size and performances of latex were discussed.The experimental results show that the core monomer content is 30%,the particle size of microlatex is the smallest,the content of styrene should not exceed 30%,and the NMA is 2%,the addition of 0.3% DVB make the ratio of absorbing water downwards from 10.67%to 4.32%.

关 键 词：微乳液聚合 核壳结构 苯乙烯 丙烯酸酯 

分 类 号：TQ316.334[化学工程—高聚物工业]