摘要
以弹性体SEBS作为增韧剂制备高韧性透明PP材料。通过DSC、PLM、熔体指数、透明性能、力学性能等测试研究了不同SEBS含量的透明PP共混物的结晶行为、透明和力学性能。结果表明:随着SEBS含量的增加,共混物的冲击强度有较大幅度的提高,提高近20倍。当SEBS含量为15%时可以很好地改善体系的加工流动性;SEBS的加入量较大时会明显降低体系的结晶度;弹性体SEBS和成核剂并不具有协同成核效果;随着弹性体含量的逐渐增大,PP材料的透明性能大幅度降低。
High toughness PP was prepared by using SEBS as toughening reagent. The crystal properties and transparent properties of different systems with different content of SEBS were studied by DSC, PLM, MFR, Optical propertie and mechanical properties tests. The result showed that the impact strength of PP/SEBS blends was 20 times higher than that of the pure PP. The processing flowahility of system was improved when adding 15 % conent SEBS, SEBS could decrease the crystallinity of PP,and did not have synergistic effect of NA and SEBS on PP.
出处
《塑料》
CAS
CSCD
北大核心
2011年第5期45-48,95,共5页
Plastics
基金
国家科技支撑计划资助(2007BAB08B05)
关键词
SEBS
PP
结晶
透明
增韧
SEBS
PP
crystallization
transparent
toughening
