Crystallization kinetics of polypropylene-polyethylene-based copolymers

被引：6
|
作者：
Suñol, JJ
Saurina, J
Berlanga, R
Herreros, D
Pagès, P
Carrasco, F
机构：
[1] Univ Girona, Dept Ind Engn, Girona 17071, Spain
[2] Univ Politecn Catalunya, Dept Mat Sci, E-08028 Barcelona, Spain
[3] Univ Girona, Dept Chem Engn, Girona, Spain
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 55卷 / 01期
关键词：
artificial ageing; DSC; dynamic crystallization; isoconversional method;
D O I：
10.1023/A:1010123819994
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A crystallization kinetics analysis of several polypropylene-polyethylene (PP-PE), PP-rich copolymers was made by means of differential scanning calorimetry. The crystallization was studied via calorimetric measurements at different cooling rates. Several additives were added to the base material. Some test samples were subjected to artificial ageing processes. A modified isoconversional method was used to describe the crystallization process under nonisothermal conditions. The value of the Avrami parameter was determined for primary and secondary crystallization.
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页码：57 / 65
页数：9
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