POLYETHYLENE TOUGHENED BY CACO3 PARTICLES PERCOLATION MODEL OF BRITTLE-DUCTILE TRANSITION IN HDPE/CACO3 BLENDS

被引：55

作者：

FU, Q

WANG, GH

机构：

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

来源：

POLYMER INTERNATIONAL | 1993年 / 30卷 / 03期

关键词：

PERCOLATION MODEL; BRITTLE-DUCTILE TRANSITION; MATRIX LIGAMENT THICKNESS; PERCOLATION THRESHOLD; CRITICAL EXPONENT;

D O I：

10.1002/pi.4990300306

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 percolation model is used to interpret the brittle-ductile transition of HDPE/CaCO3 blends. The percolation threshold (PHI(SC)) for HDPE/CaCO3 blends is found to be 0.52, which is equal to pi/6. The critical exponent (g) is found to be 0.83 for HDPE/CaCO3 blends. The toughening efficiency of blends which have monodisperse, highly asymmetrical particles, strong interphase adhesion and high matrix toughness is greater. The brittle-ductile transition in polymer blends seems to be a universal percolation phenomenon.

引用

页码：309 / 312

页数：4

共 11 条

[1] CONTINUUM PERCOLATION OF RODS [J].