复合成核剂对PP/POE共混体系等温结晶行为的影响  

Effect of Compounding Nucleating Agent on Isothermal Crystallization Behavior of PP/POE Blend

作　　者：梁勇[1] 敬波[1] 戴文利[1] 

机构地区：[1]湘潭大学化学学院,湖南湘潭411105

出　　处：《塑料科技》2010年第8期79-82,共4页Plastics Science and Technology

摘　　要：以低分子量尼龙6为主体制备了一种新型复合成核剂NF-10,采用差示扫描量热分析仪、偏光显微镜等分析手段研究了该成核剂对聚丙烯/乙烯-辛烯共聚物(PP/POE)共混体系结晶温度、结晶形态、等温结晶及其动力学的影响。结果表明:NF-10可以提高PP/POE体系的结晶温度、结晶度和结晶速率,减小体系结晶球晶的尺寸,提高晶核密度,显著改善PP/POE共混体系结晶性能。The novel compounding nucleating agent（NF-10） based on low molecular weight PA6 was prepared.The effects of NF-10 on the crystallization temperature,crystal morphology,isothermal crystallization and crystallization kinetics of PP/POE blend were investigated by differential scanning calorimetry,polarized light microscope,and advanced rheometer.The results show that with the addition of NF-10,the crystallization temperature,crystallinity,crystallization rate and crystal nucleus density of PP/POE blend increase,the spherulitic crystal size decreases,so that the crystallization properties of PP/POE blend are improved obviously.

关 键 词：复合成核剂 聚丙烯 结晶行为 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]