摘要
以聚丙烯酸丁酯(PBA)为核,以聚甲基丙烯酸甲酯(PMMA)为壳,通过种子乳液聚合制备了具有不同核/壳比的丙烯酸酯类抗冲改性剂(AIM)。透射电镜观察发现,AIM乳胶粒子具有明显的核?壳结构。考察了不同核壳比AIM共混改性聚氯乙烯(PVC)的相态结构和抗冲性能,发现AIM核壳比为60/40～80/20时,增加核壳比对提高AIM对PVC的增韧效果有利。随着AIM加入量增大,PVC树脂加工塑化时间缩短。
With poly（butyl acrylate） （PBA） as the core and poly（methyl methacrylate） （PMMA） as shell, through seeded emulsion polymerization, a series of acrylic impact modifiers （AIM） with different core/shell ratio were synthesized. The TEM micrographs showed that AIM latex particles exhibited core-shell structure. The morphology and notched impact strength of poly （vinyl chloride） （PVC） /AIM blends with different core/shell ratio were investigated. It was found that when the core/shell ratio of AIM was 60/40 80/20, the larger the core-shell ratio, the more effective in improving the notched impact strength of PVC blends, and the fusion time of PVC decreased as the addition of AIM increased.
出处
《塑料工业》
CAS
CSCD
北大核心
2010年第3期75-77,89,共4页
China Plastics Industry
基金
国家科技支撑计划项目课题资助(编号:2007BAE10B01)
关键词
聚氯乙烯
丙烯酸酯类抗冲改性剂
乳液聚合
核-壳结构
增韧
Poly（vinyl chloride）
Acrylic Impact Modifier
Emulsion Polymerization
Core-shell Structure
Toughen
