不同分子量聚丁烯-1的非等温结晶动力学研究  

Nonisothermal Crystallization Kinetics of Different Molecular Weight PB

作　　者：于相慧[1] 贾婷 曲敏杰 YU Xiang-hui;JIA Ting;QU Min-jie(College of Manchinery and Vehicle Engineering,Changchun University,Changchun 130022,Jilin,China;Shenyang Research Institute of Chemical Industry Co.,Ltd.,Shenyang 110021,Liaoning,China;School of Textile and Material Engineering,Dalian Polytechnic University,Dalian 116034,Liaoning,China)

机构地区：[1]长春大学机械与车辆工程学院,吉林长春130022 [2]沈阳化工研究院有限公司,辽宁沈阳110021 [3]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《合成材料老化与应用》2022年第1期41-42,87,共3页Synthetic Materials Aging and Application

摘　　要：采用差示扫描量热法研究了不同降温速率下,不同分子量聚丁烯-1(PB、PB0.5%、PB1.5%、PB3.0%)的非等温结晶动力学,并用Avrami和Jeziorny法进行处理分析,获得PB相关非等温动力学参数,并利用Kissinger方程计算其结晶活化能。结果表明:当PB分子量降低时,结晶速率变快。不同分子量PB的结晶活化能分别为12.17、13.31、13.91、13.41 kJ/mol。The nonisothermal crystallization behaviors of different molecular weight polybutene-1(PB,PB0.5%,PB1.5%,PB3.0%)were investigated by DSC.Avrami equation and Jeziorny approach were respectively used to analysis nonisothermal crystallization kinetic data.The parameters in nonisothermal crystallization process behaviors were analyzed,and activation energy value of PB resins were also determined according to Kissenger method.The result shows that when the molecular weight of PB decreases,the crystallization rate increases.The activation energy value of different molecular weight PB resins were 12.17,13.31,13.91,13.41 kJ/mol,respectively.

关 键 词：聚丁烯-1 分子量 非等温结晶动力学 活化能 

分 类 号：TQ322.9[化学工程—合成树脂塑料工业]