ANALYSIS OF THE ISOTHERMAL CRYSTALLIZATION OF POLY-PROPYLENE/WOOD FLOUR COMPOSITES

被引：21

作者：

Bouza, R. ^{[2
]}

Marco, C. ^{[1
]}

Ellis, G. ^{[1
]}

Martin, Z. ^{[1
]}

Gomez, M. A. ^{[1
]}

Barral, L. ^{[2
]}

机构：

[1] CSIC, Inst Ciencia & Tecnol Polimeros, E-28006 Madrid, Spain

[2] Univ A Coruna, Dept Fis, EUP Ferrol, Ferrol 15405, Spain

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 94卷 / 01期

关键词：

crystallization; interfacial free energies; polypropylene; wood flour;

D O I：

10.1007/s10973-007-8908-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Isothermal crystallization and melting of isotactic polypropylene in binary polypropylene-wood flour composites has been studied by DSC, and the influence of an ethylene-methacrylic acid copolymer interfacial agent analyzed. Wood flour induces a slight nucleating effect, reducing the basal interfacial free energy of nucleation and increasing the overall crystallization rate. The interfacial agent generates a compatibilization phenomenon and an increase in the basal interfacial free energies with respect to the binary composites. In both binary and ternary systems the melting behaviour is a function of undercooling and is unaltered by the presence of either wood flour or the interfacial agent.

引用

页码：119 / 127

页数：9

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