无规共聚聚丙烯β结晶改性的研究  

Research on Special Material of β-Crystal Polypropylene

作　　者：张建军 王凯 张慧芳 Zhang Jianjun;Wang Kai;Zhang Huifang(Shanxi keying technology co.LTD,Jinzhong,030600)

机构地区：[1]山西科瀛科技有限公司,晋中030600

出　　处：《塑料助剂》2019年第1期42-45,共4页Plastics Additives

基　　金：晋中市科技重点研发计划(工业)(Y181012)

摘　　要：采用β成核剂改性无规共聚聚丙烯(PPR),通过偏光显微镜(POM)、示差扫描量热仪(DSC)、X射线衍射仪(XRD)和悬臂梁缺口冲击仪测试其对聚丙型结晶行为和力学性能的影响。结果表明,利用β成核剂异相成核诱导法对PP-R材料进行结晶改性,能够大幅提高其冲击强度从而提高材料的韧性。芳基二酰胺类聚丙烯β晶型成核剂具有β晶型转化率高、稳定性好、机械性能好、无着色污染和廉价等特点,非常适合聚丙烯的工程化改性。The effect on the crystallization behavior and mechanical properties of polypropylene was tested by β nucleating agent modified PPR through POM,DSC,XRD and cantilever notch impactor.The results show that the crystallization modification of pp-r material by the method of different phase nucleation induction of beta nucleating agent is able to significantly improve the impact strength and toughness of the material.The aryl-diamide nucleating agent has the characteristics of high yield,good stability,good mechanical properties,no coloring pollution and low cost,which is very suitable for the engineering modification of polypropylene.

关 键 词：Β成核剂 无规共聚聚丙烯 Β晶型 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]