ELECTRON-MICROSCOPIC INVESTIGATIONS OF INITIATION AND GROWTH OF CRAZES IN POLYSTYRENE

被引：24
|
作者：
MICHLER, GH [1 ]
机构：
[1] KOMBINAT VEB CHEM WERKE BUNA,SCHKOPAU,GER DEM REP
来源：
COLLOID AND POLYMER SCIENCE | 1986年 / 264卷 / 06期
关键词：
FRACTURE MECHANICS - Microscopic Examination - MICROSCOPES; ELECTRON; -; Applications;
D O I：
10.1007/BF01422006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The crazes in polystyrene (PS) were investigated by using a high voltage electron microscope. Conclusions are drawn on the processes of initiation and propagation of the crazes; both are based on molecular heterogeneities and on an increasing heterogeneity of deformation. In particular, the transformation of the 'closed cell structure' of the voids into the 'open cell structure' of the craze fibrils is described. Growth of crazes in thickness definitely occurs by drawing new polymeric material from the craze boundaries into the craze.
引用
收藏
页码：522 / 532
页数：11
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