有机羧酸盐类成核剂对煤基抗冲聚丙烯2500H的改性研究  

Study on Modification of Coal-based Impact Polypropylene 2500H by Organic Carboxylate Nucleating Agents

作　　者：李彦鹏 郑鹏程 胡琳 焦旗 田广华 LI Yan-peng ZHENG Peng-cheng HU Lin JIAO Qi TIAN Guang-huaL(Shenhua Ningxia Coal Industry Group Co., Ltd. Polypropylene First Branch Company of Coal to Liquids and Chemicals,Yinchuan 750411, Ningxia, China Shenhua Ningxia Coal Industry Group Co., Ltd. R＆D Center of Coal to Liquids and Chemicals, Yinchuan 750411, Ningxia, China)

机构地区：[1]神华宁夏煤业集团煤制油化工烯烃一分公司,宁夏银川750411 [2]神华宁夏煤业集团煤制油化工研发中心,宁夏银川750411

出　　处：《合成材料老化与应用》2017年第3期29-34,共6页Synthetic Materials Aging and Application

摘　　要：对比研究了两种有机羧酸盐类成核剂HPN-A和GPN-B对煤基抗冲聚丙烯2500H的改性,探讨了不同添加量对煤基抗冲聚丙烯2500H结晶性能、力学性能、相形态等性能的影响。结果表明,和成核剂HPN-A相比,成核剂GPN-B在改善聚丙烯2500H结晶性能,提高聚丙烯2500H拉伸屈服应力、断裂拉伸应变、弯曲应力、弯曲模量方面更优;当GPN-B的添加量为600mg/kg时,聚丙烯的结晶性能和刚性最好。对于乙丙橡胶粒子大小和形态分布、熔融指数、洛氏硬度、黄色指数等性能,成核剂HPN-A和GPN-B对聚丙烯的影响均不大。The modification of coal-based impact polypropylene（PP） 2500H by two organic carboxylate nuclea- ting agents HPN-A and GPN-B were investigated, and the effect of different adding amount on crystallization proper- ty, mechanical property and phase morphology of coal-based impact PP2500H were studied. The results showed that comparing with nucleating agent HPN-A, the PP samples which added with nucleating agent GPN-B possessed better crystallization property, tensile strength, tensile strain at break, flexural strength and flexural modulus. When the adding amount of GPN-B was 600mg/kg, the crystallization property and stiffness of sample were best. On the ethyl- ene-propylene rubber particle size and distribution, MFI, Rockwell hardness and yellow index of PP samples, the nu- cleating agents HPN-A and GPN-B both had little effect.

关 键 词：羧酸盐类成核剂 煤基抗冲聚丙烯 结晶性能 力学性能 相形态 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]