PC/SBM共混物的形态结构与性能研究  

Study on morphology and property of PC/SBM blend

作　　者：胡跃鑫[1] 许普 韩向艳[1] 雷良才[1] 李海英[1] 

机构地区：[1]辽宁石油化工大学化学与材料科学学院,抚顺113001 [2]抚顺石化公司研究院,抚顺113008

出　　处：《化工新型材料》2016年第11期175-177,共3页New Chemical Materials

基　　金：辽宁省教育厅科学研究一般项目(L2016001)

摘　　要：通过熔融共混的方法制备聚碳酸酯/聚苯乙烯-b-聚丁二烯-b-聚甲基丙烯酸甲酯三嵌段共聚物(SBM)共混物,研究SBM含量对共混物的形态结构和性能的影响。结果表明:SBM能够较好地分散在PC基体中并能显著改善其韧性,而对刚性损失较小,并基于Wu的逾渗理论,得出PC/SBM共混物的临界基体层厚度为185nm。Polycarbonate（PC）/polystyrene-block-polybutadiene-block-poly（methy methacrylate） （SBM） triblock co- polymer blends were prepared by melt blending. The effect of the content of SBM on the morphology and property of blends was studied. The results showed that SBM block copolymer can be well dispersed in the PC matrix and improved remark- ably the impact strength of blends, but without deteriorating the stiffness of polycarbonate. The critical matrix ligament thickness of blends was obtained by percolation model of Wu,was 185nm.

关 键 词：聚碳酸酯 嵌段共聚物 增韧 临界基体层厚度 

分 类 号：TQ317[化学工程—高聚物工业]