小角激光散射法研究α成核剂对PP性能的影响  

SALS Study on Effect of Nucleating Agent on Properties of PP

作　　者：韩磊[1] 简嫰梅 徐涛[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550014

出　　处：《塑料》2014年第2期13-14,71,共3页Plastics

基　　金：贵州大学教育教学改革研究项目(JG2013049)

摘　　要：通过小角激光散射法研究α成核剂的添加对结晶结构变化的影响,并结合力学性能作相关分析。结果表明:随着α成核剂量的增加,PP的小角激光四叶瓣图形尺寸逐渐增大,表明球晶的平均尺寸逐渐减小;成核PP的冲击韧性略有上升,拉伸强度和杨氏模量有明显的上升趋势,断裂伸长率逐渐减小。The impact of changes on the crystal structure adding a nucleating agent and combined with correlation analysis of mechanical properties were studied by SALS. The results showed the four lobes image size of PP became larger with the increase of the content of a nucleating agent. This indicated the average size of the spherulites became smaller. The impact toughness of PP increased slightly, tensile strength and Young＇ s modulus had a clear upward trend, but elongation decreased.

关 键 词：小角激光散射 α成核剂 四叶瓣图形 球晶尺寸 力学性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]