i-PB/PP共混体系力学性能和结晶性能的研究  

Mechanics and Crystallization Properties on i-PB/PP Blends

作　　者：黄佃平[1] 江云涛[1] 胡红旗[1] 姚薇[1] 黄宝琛[1] 

机构地区：[1]青岛科技大学高分子科学与工程学院橡胶材料与工程教育部重点实验室,山东青岛266042

出　　处：《塑料》2008年第2期33-36,共4页Plastics

基　　金：国家863计划新材料领域(2006AA03乙546)

摘　　要：考察了高全同聚丁烯-1的用量对聚丙烯力学性能和结晶性能的影响。随着高全同聚丁烯-1用量的增加,共混体系拉伸强度、弯曲强度、弯曲模量和硬度均呈下降的趋势;而屈服强度呈先上升后下降的趋势,在聚丁烯-1含量为20%时出现最大值;冲击强度随聚丁烯-1用量的增加呈上升的趋势。随着聚丁烯-1用量的增加,屈服变得越来越不明显,共混体系的韧性也相应有所提高。当聚丁烯-1用量为20份时,聚丙烯球晶被分割和细化。在共混物中,聚丙烯对高全同聚丁烯-1有一定的异相成核作用。It was mainly concerned with the mechanical properties and crystallization properties of the i-PB/PP systems. With i-PB increased,the tensile strength,flexural strength,flexural modulus and hardness of the blends decreased gradually. While yield strength increased at first and decraesed at last, the yield strength of max value was 20phr of i-PB. The impact strength raised as i-PB increasing. With i-PB increased yield became unconspicuous while toughness improved correspondingly. Spherulite of PP was divided and refined as 20 phr of i-PB. Heterogeneous nucleation of i-PB was effect by PP in blend.

关 键 词：高全同聚丁烯-1 聚丙烯 力学性能 结晶性能 畀相成核作用 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]