TOUGHENING MECHANISMS IN CORE SHELL RUBBER MODIFIED POLYCARBONATE

被引：199

作者：

PARKER, DS ^{[1
]}

SUE, HJ ^{[1
]}

HUANG, J ^{[1
]}

YEE, AF ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT MAT SCI & ENGN,ANN ARBOR,MI 48109

来源：

POLYMER | 1990年 / 31卷 / 12期

关键词：

core-shell rubber; fracture toughness; polycarbonate; rubber modification; toughening;

D O I：

10.1016/0032-3861(90)90312-M

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We have conducted a study of toughening mechanisms in rubber modified polycarbonate systems in order to evaluate the sequence of deformation events which improve fracture toughness. We conclude that cavitation of the rubber particles occurs first, followed by massive shear yielding of the matrix material. The size and shape of the deformation zone created in front of the crack is governed by the mechanical properties of the rubber particles and the stress state at the crack tip. The importance of using a variety of analytical techniques to characterize deformation mechanism is also illustrated. © 1990.

引用

页码：2267 / 2277

页数：11

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