MELTING BEHAVIOR OF LOW ETHYLENE CONTENT POLYPROPYLENE COPOLYMERS WITH AND WITHOUT NUCLEATING AGENTS

被引：1
|
作者：
张瑞云
罗筱烈
王群华
马德柱
机构：
[1] Academia Sinica Structure Research Laboratory
[2] Anhui 230026
[3] Department of Materials Science and Engineering
[4] Hefei
[5] University of Science and Technology of China
来源：
Chinese Journal of Polymer Science | 1994年 / 03期
关键词：
Melting behavior; Crystal form; DSC; PP copolymer; Nucleating agent;
D O I：
暂无
中图分类号：
TQ325.14 [];
学科分类号：
0805 ; 080502 ;
摘要：
The melting behavior of polypropylene (PP) and low ethylene content polypropylenecopolymer with and without nucleating agent samples crystallized under both isothermal and non-isothermal conditions were studied by Differential Scanning Calorimeter (DSC) and X-raydiffraction. Multiple melting behavior were observed depending on the existence of nucleatingagent and crystallization conditions. The observed phenomena have been discussed by the effect ofnucleating agent on perfection of crystal and the melting and recrystallization of imperfect crystalto a more perfect crystal during the heating process of samples.
引用
收藏
页码：246 / 255
页数：10
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