DEVELOPMENT OF ANISOTROPY IN ULTRA-HIGH MOLECULAR-WEIGHT POLYETHYLENE

被引：19

作者：

GAO, P ^{[1
]}

MACKLEY, MR ^{[1
]}

NICHOLSON, TM ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT CHEM ENGN,PEMBROKE ST,CAMBRIDGE CB2 3RA,ENGLAND

来源：

POLYMER | 1990年 / 31卷 / 02期

关键词：

aggregate model; mechanical properties; swelling; ultrahigh molecular weight polyethylene; X-ray analysis high modulus;

D O I：

10.1016/0032-3861(90)90112-C

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 report experimental measurements on the drawing behaviour of a pre-swollen drawn sample of ultra-high molecular weight polyethylene (UHMWPE). X-ray information is expressed in terms of an orientation function P2(θ), and the increase in both P2 and the tensile modulus are determined as a function of draw ratio. Scanning electron microscopy is used to follow the structural changes in the material. The experimental results are compared with a numerical simulation of the deformation and from these we suggest that early stages of deformation involve crystal orientation followed by subsequent chain extension at higher draw ratios. © 1990.

引用

页码：237 / 242

页数：6

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