纳米CaCO_3含量对PP/SBS/CaCO_3复合材料力学性能的影响  

Effects of nano-CaCO_3 content on the mechanical properties of PP/SBS/CaCO_3 composites

作　　者：童荣柏[1] 彭娅[1] 伍增勇[1] 王柯[1] 王艳[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《弹性体》2010年第2期16-20,共5页China Elastomerics

基　　金：西华大学特种材料及制备技术省高校重点实验室开放研究基金;西华大学人才引进项目(0421127)

摘　　要：通过双螺杆共混方法制备聚丙烯(PP)/苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)/Ca-CO3复合材料,并采用扫描电镜(SEM)、力学性能测试和偏光显微镜研究了纳米CaCO3用量对该复合体系微观结构、力学性能以及结晶形貌的影响。结果表明:纳米CaCO3粒子在PP中均匀地分散可细化晶粒并起到了增韧增强的效果。当加入纳米CaCO3的质量分数为2%时,其综合性能最好。The PP/SBS/ CaCO3 composites with different weight content of nano-CaCO3 were prepared by twin-screw mixing method.The morphology,mechaical properties and Spherulite morphology of the composites were characterized by SEM,mechaical properties testing and polarizing microscope measurements.The results showed that the even dispersion of nano-CaCO3 can play the role on the improvement of toughening and strengthening.At the same time,it can also grain refinement.When the weight content of nano-CaCO3 is 2%,the properties is the best.

关 键 词：聚丙烯 纳米CACO3 SBS 增韧增强 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]