THE EFFECT OF PHYSICAL AGING ON LONG-TERM PROPERTIES OF POLY-ETHER-KETONE (PEEK) AND PEEK-BASED COMPOSITES

被引：20

作者：

DAMORE, A

COCCHINI, F

POMPO, A

APICELLA, A

NICOLAIS, L

机构：

[1] Department of Materials and Production Engineering, Napoli, 80125, P.le Tecchio

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 39卷 / 05期

关键词：

Polymers;

D O I：

10.1002/app.1990.070390511

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 viscoelastic properties of the amorphous and semicrystalline PEEK and of a PEEK‐based composite (APC2) have been analyzed as a function of the aging time and related free volume relaxation, at temperatures close to the glass transition temperature. The effect of thermal treatments (physical aging) on the polymer amorphous phase of the three systems is presented. Creep tests approaching the “zero stress” were performed on samples subjected to different thermal histories. The presence of a second phase, namely crystallites and fibers, determines a loss of the mobility of the polymeric amorphous chains and consequently a decrease of the rate of free volume relaxation. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：1163 / 1174

页数：12

共 13 条

[1]

AKLONIS JJ, 1983, INTRO POLYMER VISCOE

[2]

BLUNDELL DJ, 1985, SAMPE QUART, V17, P1

[3] THE MORPHOLOGY OF POLY(ARYL-ETHER-ETHER-KETONE) [J].