弹性体对透明PP结晶行为、透明性能和微观结构的影响  

Influence of Elastomer on Crystallization, Optical Propertie and Morphology of Toughness PP

作　　者：刘辉[1,2] 张敏敏[2] 秦舒浩[2] 何敏[1] 于杰[2] 

机构地区：[1]贵州大学材料科学与冶金工程学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料》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)

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.

关 键 词：SEBS PP 结晶 透明 增韧 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]