二环[2.2.1]庚烷二羧酸盐成核剂对聚丙烯结晶行为和力学性能的影响  

Effects of Nucleating Agent Bicyclicheptane Di-carboxylate on Crystallization Behaviors and Mechanical Properties of Polypropylene

作　　者：张跃飞[1] 罗贤祖[1] 常瑶[1] 张珂珂[1] 吴其文[1] 李江胜[1] 卢翠红[1] 

机构地区：[1]长沙理工大学化学与生物工程学院电力与交通材料保护湖南省重点实验室,湖南长沙410114

出　　处：《塑料工业》2013年第3期76-78,共3页China Plastics Industry

基　　金：湖南省教育厅资助科研项目(10B004);湖南省科技计划项目(2012FJ3002;2009GK3015);长沙理工大学大学生创新实验项目;国家自然科学基金项目(21202010);湖南省自然科学基金青年项目(12JJ4021)

摘　　要：研究了二环[2.2.1]庚烷二羧酸盐成核剂(商品名:HPN-68)对聚丙烯(PP)结晶行为和力学性能的影响。结果表明:HPN-68是一种典型的聚丙烯α晶型成核剂,在PP中具有很高的成核效率。在较低的添加浓度下可明显提高PP的结晶峰温度和力学性能。然而,其添加量存在一个饱和值。当成核剂含量达到该饱和值以后,PP的结晶峰温度和力学性能就趋于稳定。当成核剂HPN-68的添加量为0.2 phr时,PP的结晶峰温度可升高15℃左右,拉伸强度和弯曲模量分别可提高12.7%和18.2%。Effects of bicyclic [ 2, 2, 1 ] heptane di-carboxylate （ commercial product name ： HPN-68 ） on the crystallization behaviors and mechanical properties of polypropylene （PP） were studied in this paper. The results showed that HPN-68 was a typical nucleating agent for a-PP and it had high nucleation efficiency in PP. Crystallization peak temperature and mechanical properties of PP nucleated with HPN-68 can be greatly increased under low concentration of HPN-68. However, the addition concentration of nucleating agent HPN-68 had a saturation value and properties of PP will tend to stable after concentration of HPN-68 exceeded the saturation value. When the addition concentration of HPN-68 was 0.2 phr, the crystallization peak temperature can be increased by about 15C, and the tensile strength and flexural modulus of PP can he increased by 12.7% and 18.2%, respectively.

关 键 词：聚丙烯 成核剂 结晶行为 力学性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]