UHMWPE非等温结晶动力学研究  

STUDY ON NON-ISOTHERMAL CRYSTALLIZATION BEHAVIOR AND KINETICS OF UHMWPE

作　　者：赵梓年[1] 文志红[1] 

机构地区：[1]天津科技大学,300222

出　　处：《现代塑料加工应用》2005年第6期19-21,共3页Modern Plastics Processing and Applications

摘　　要：用DSC法研究了3种不同相对分子质量UHMWPE的非等温结晶过程。结果表明,在2.5,5.0,10.0℃/min的降温速率范围内能很好地符合Gupta法和莫志深法的动力学方程;相对分子质量较小的UHMWPE易结晶;冷却速率增加,UHMWPE需更高的过冷度才能结晶。The non-isothermal crystallization behavior and kinetics of three different relative molecular weight UHMWPE were investigated. The results showed that the kinetics of non-isothermal crystallization of UHMWPE was in accord with Gupta and Mozhishen Way＇s at cooling rates from 2.5 ℃/min to 10.0 ℃/min. The crystallization was easy for lower relative molecular weight UHMWPE sample. The highly undercooled was need for UHMWPE crystallization with the increasing of cooling rate.

关 键 词：超高相对分子质量聚乙烯 非等温结晶 冷却速率 动力学 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] O632.12[理学—高分子化学]