DISCRETE STRENGTH LEVELS IN POLYPROPYLENE FILMS

被引：2

作者：

DIMITROVA, D ^{[1
]}

KOSTOV, G ^{[1
]}

GAROVA, G ^{[1
]}

机构：

[1] HIGHER INST CHEM TECHNOL,BU-8010 BURGAS,BULGARIA

来源：

POLYMER | 1993年 / 34卷 / 22期

关键词：

POLYPROPYLENE FILMS; ORIENTATION; DISCRETE STRENGTH LEVELS; DEFECT DISTRIBUTION;

D O I：

10.1016/0032-3861(93)90709-J

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 mechanical strength of oriented and non-oriented polypropylene films was studied at a deformation rate of 50 mm min-1 and room temperature by using a statistical method. For the oriented and non-oriented films, the numbers of discrete strength levels were found to be eight and nine, respectively. The discrete strength levels were attributed to the spectra of the defects in the form of submicro-, micro- and macrocrazes. Oriented films showed higher levels of mechanical strength - an effect attributed to the absence of macrocrazes.

引用

页码：4732 / 4735

页数：4

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