Tensile deformation mechanisms of the blends of polycarbonate with poly(methyl methacrylate)

被引：16

作者：

Xu, SA ^{[1
]}

Tjong, SC ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong

来源：

EUROPEAN POLYMER JOURNAL | 1998年 / 34卷 / 08期

关键词：

D O I：

10.1016/S0014-3057(97)00234-6

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 deformation mechanisms of polycarbonate/poly(methyl methacrylate) blends at room temperature has been investigated by means of the dilatometric measurements. A quantitative model developed by Heikens el al. [10,11] has been applied to obtain information on the separate contributions of several possible deformation mechanisms to the total deformation. For pure poly(methyl methacrylate) and the polycarbonate/poly(methyl methacrylate) 10/90 blend, crazing is found to be the dominant plastic deformation mechanism, whereas shear deformation is responsible for the toughening of pure polycarbonate and the polycarbonate/poly(methyl methacrylate) 90/10 blend. However, both crazing and shear deformation contribute to the total elongation of polycarbonate/poly(methyl methacrylate) 50/50 blend. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1143 / 1149

页数：7

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