AGING OF QUENCHED POLYPROPYLENE

被引：41

作者：

KAPUR, S ^{[1
]}

ROGERS, CE ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,DIV MACROMOLEC SCI,CLEVELAND,OH 44106

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1972年 / 10卷 / 11期

关键词：

AGING OF MATERIALS - PLASTICS - Physical Properties - POLYMERS - Quenching;

D O I：

10.1002/pol.1972.180101101

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Structural changes occurring during the aging of polypropylene quenched from the melt have been investigated by measurements of gas transport parameters and mechanical properties. Major changes in diffusion and sorption behavior during the first 30 hr of aging at room temperature were found to be strongly dependent on the atomic size of the inert gas penetrants. Tensile mechanical properties increased with aging time, while resilience and mechanical damping showed more complex behavior. The relaxation of a residual stress distribution related to nonuniform plastic flow during quenching may be superimposed on the rearrangemet phenomena.

引用

页码：2107 / 2124

页数：18

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