Morphology, mechanical properties and stress-relaxation of biaxially oriented polyethylene films irradiated with β-radiation

被引：5

作者：

Bobovitch, A ^{[1
]}

Gutman, EM

Henning, S

Michler, GH

Nir, Y

机构：

[1] Syfan Saad 99 Ltd, IL-85140 Kibbutz Saad, DN Hanegev, Israel

[2] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

[3] Univ Halle Wittenberg, Dept Engn, D-4010 Halle An Der Saale, Germany

来源：

JOURNAL OF PLASTIC FILM & SHEETING | 2002年 / 18卷 / 03期

关键词：

stress-relaxation; relaxation time spectrum; polyethylene film; crosslinked film; LLDPE film; mechanical properties; irradiation dose; tear strength; TEM; X-ray; gels;

D O I：

10.1177/8756087902018003003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present study describes an influence of beta-radiation on morphology, mechanical properties and stress-relaxation of biaxially oriented polyethylene films. The mechanical properties and stress-relaxation of irradiated crosslinked films were studied as a function of the irradiation dose applied. The relaxation time spectra of crosslinked films were observed to display additional relaxation times. Irradiation dose of 4 megarads (MR) was found to be optimal from the viewpoint of mechanical properties. The crystallization of crosslinked and noncrosslinked polyethylene Was compared. It was shown that irradiation affects the final crystallinity of polyethylene. Lower crystallinity was observed due to lower mobility of crosslinked molecules.

引用

页码：169 / 178

页数：10

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