Brittle-ductile transition in polypropylene filled with glass beads

被引：49

作者：

Liang, JZ

Lia, RKY

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Peoples R China

[2] S China Univ Technol, Dept Chem Machinery, Guangzhou 510641, Peoples R China

来源：

POLYMER | 1999年 / 40卷 / 11期

关键词：

polypropylene; class bead; composite;

D O I：

10.1016/S0032-3861(98)00532-1

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of surface treatment of glass beads with a silane coupling agent and the filler content on the notched Izod impact properties of the filled polypropylene (PP) composites has been investigated. It was found that the impact fracture energy of the composites, E-IC, increased with increasing the volume fraction of glass beads, phi(f); the influence of surface treatment of glass beads on E-IC was insignificant; the brittle-ductile transition (BDT) phenomenon occurred when phi(f) was about 10%. A modified percolation model for BDT in thermoplastic-rigid particle blends is proposed under the basis of predecessors' work. The results show that the BDT of the composites in impact can be considered as a percolation process. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3191 / 3195

页数：5

共 14 条

[1] Interface and mechanical coupling effects in model particulate composites [J].