ROLE OF INTER-LINKS AND INTRA-LINKS IN THE TRANSFORMATION OF FOLDED CHAIN LAMELLAE INTO MICROFIBRILS

被引：37

作者：

TARIN, PM ^{[1
]}

THOMAS, EL ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003

来源：

POLYMER ENGINEERING AND SCIENCE | 1979年 / 19卷 / 14期

关键词：

D O I：

10.1002/pen.760191409

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study we investigate the effect of crystallization rate on the extensibility (draw ratio) of spherulitic polyethylene film uniaxially deformed at room temperature. Draw ratios for deformed films increased with increasing crystallization temperature. Transmission electron microscopy of the microfibrillar structures revealed and interconnected network of fibrils. The degree of connectivity between microfibrils was found to decrease with increasing‐crystallization temperature. A model of the deformation process is developed in which inter‐ and intra‐link (extended chain fibers formed during crystallization) distribute the applied stress, initiate the micronecking process and influence the amount of chain unfolding during drawing. Copyright © 1979 Society of Plastics Engineers, Inc.

引用

页码：1017 / 1022

页数：6

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