流变法与DSC法测量PVC凝胶度的原理及应用  

Principle of Measureing Gelation Level of PVC with Rheometry and DSC

作　　者：王淑英 吴其晔 潘洪亮 

出　　处：《青岛化工学院学报（自然科学版）》1995年第2期122-126,135,共6页Journal of Qingdao Institute of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：阐明了用零长毛细管流变仪和差示扫描量热计（ＤＳＣ）测定ＰＶＣ熔体凝胶度的原理。并采用这两种方法具体测量了ＰＶＣ／ＣＰＥ／ＰＳ体系的凝胶度。讨论了凝胶度与加工温度及力学性能的关系，对此两种方法的测试结果进行了比较。The principle of measuring the gelation level of PVC melt-system with the zero-lengthcapilary rheometer and the differential scan 'inS calorimetry(DSC) is dealt with, and the gelation levelof PVC/CPE/PS system are specifically measured with thais two methods.The relationships betweenthe gelation level and the processing temperature and the physical properties are also discussed and theresults by the two methods are compared.

关 键 词：共混 凝胶 差热分析 流变性 聚氯乙烯 

分 类 号：TQ325.307[化学工程—合成树脂塑料工业] TQ317.3