聚α-甲基苯乙烯对SBS及其共混物加工性能的影响

THE EFFECTS OF MODIFIER ON THE PROCESSABILITIES OF SBS AND ITS B1ENDS

研究了Pα-MS对SBS、PP/SBS加工性能的影响及Pα-MS对SBS微相分离结构的影响。结果表明,Pα-MS可明显改善SBS、PP/SBS的加工性能;Pα-MS可使SBS的相分离结构变得模糊不清直至微相分离结构消失,使SBS失去物理交联点,从而丧失热塑性弹性体的特性。

The effects of Pa-MS on the SBS domain and the processabilities of SBS or PP/SBS have been studied in this paper. The result shows : Pa-MS can improve the processabilities of SBS and PP/SBS remarkably. The addition of Po-MS can make the microphase segregation structure of SBS indistinct and finaly make the domain of SBS disappeared,and this makes SBS lose its physical cross-linking domain,which means SBS is deprived of its characteristics of thermoplastic elastomer.