POLYETHYLENE TOUGHENED BY CACO3 PARTICLES - THE INTERFACE BEHAVIOR AND FRACTURE MECHANISM IN HIGH-DENSITY POLYETHYLENE/CACO3 BLENDS

被引：48

作者：

FU, Q

WANG, GH

LIU, CX

机构：

[1] Department of Polymer Science and Materials, Chengdu University of Science and Technology, Chengdu

来源：

POLYMER | 1995年 / 36卷 / 12期

基金：

中国国家自然科学基金;

关键词：

CORE SHELL MORPHOLOGY; HDPE CACO3 BLENDS; FRACTURE MECHANISM;

D O I：

10.1016/0032-3861(95)97339-H

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Tensile behaviour and impact force-time curves of high density polyethylene/CaCO3 blends have been investigated. The results showed that there may exist a flexible interfacial area with lower stiffness than the matrix. The concept of yielding in the interfacial area was proposed to explain the fracture mechanism of HDPE/CaCO3 blends. Three types of fracture behaviour were assumed to be dependent on the surface-to-surface interparticle distance: (1) cavitation and crazing; (2) coexistence of cavitation and yielding in the interfacial area; (3) interfacial area yielding and matrix yielding. Based on the results, the interface conditions for brittle-ductile transition and core-shell morphology of CaCO3 particles were discussed.

引用

页码：2397 / 2401

页数：5

共 20 条

[1] POLYETHYLENE TOUGHENED BY CACO3 PARTICLES PERCOLATION MODEL OF BRITTLE-DUCTILE TRANSITION IN HDPE/CACO3 BLENDS [J].