摘要
通过熔融共混挤出制备了间规聚苯乙烯/高抗冲聚苯乙烯(PS-s/PS-HI)共混物,通过差示扫描量热(DSC)仪、动态热机械分析(DMA)仪、扫描电子显微镜(SEM)考察了PS-s/PS-HI共混物的相容性。结果表明,PS-s/PS-HI共混物中PS-s与PS-HI中的PS相是相容的;DMA结果表明,PS-HI可提高PS-s的韧性,结晶PS-s使PS-HI橡胶相玻璃化转变温度提高,降低增韧效果。
Syndiotaetic polystyrene/highly-impact polystyrene （PS-s/PS-HI） blends were prepared by a twin-screw extruder. The compatibilization between syndiotatic polystyrene and highly - impact polystyrene was studied by differential scanning calorimetry （DSC）, dynamic thermomechanical analysis （DMA）, and scanning electron microscope（SEM）. Results of DSC and SEM analysis showed that PS-s was compatible with polystyrene phase in PS-HI. The DMA analysis indicated that the incorporation of PS-HI facilitated the improvement of the toughness of PS-s. However, the crystallization of PS-s restricted the segment movement of rubber phase of PS-HI, leading to the increase of glass transition temperature of rubber phase of PS-HI, as well as the decrease of the toughening effect of PS-HI.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2011年第1期21-24,共4页
Engineering Plastics Application
基金
广东省教育部科技部产学研结合项目-基地建设专项(2009B090200025)
广东省中国科学院全面战略合作计划项目(2009B091300067)
广州市天河区科技计划项目(095G105)
关键词
间规聚苯乙烯
高抗冲聚苯乙烯
相容性
syndiotactic polystyrene, highly-impact polystyrene, compatibilization
