Crystallization behavior of isotactic polypropylene based nanocomposites

被引：32
作者：
Causin, V.
Marega, Carla
Saini, Roberta
Marigo, A.
Ferrara, G.
机构：
[1] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy
[2] Ctr Ric Giulio Natta, Basell Poliolefine Italia SpA, I-44100 Ferrara, Italy
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2007年 / 90卷 / 03期
关键词：
DSC; montmorillonite; nanocomposites; polypropylene; SAXS; thermal analysis; WAXD;
D O I：
10.1007/s10973-006-8205-y
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effect of clay dispersion on the crystallization behavior of isotactic polypropylene (iPP)-based nanocomposites is reported. The T-m(0) of the materials was calculated by the method proposed by Marand, the kinetics of crystallization was evaluated by the Avrami analysis and also the Hoffman-Lauritzen theory of crystallization regimes was applied. Montmorillonite was found to depress T-m(0), to enhance the rate of crystallization and to ease the chain folding of macromolecules. These effects were magnified if clay was exfoliated, rather than intercalated.
引用
收藏
页码：849 / 857
页数：9
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