THERMAL-DEGRADATION OF POLY(ARYL-ETHER-ETHER-KETONE) (PEEK) - A DIFFERENTIAL SCANNING CALORIMETRY STUDY

被引：86

作者：

DAY, M

SUPRUNCHUK, T

COONEY, JD

WILES, DM

机构：

[1] Natl Research Council of Canada,, Ottawa, Ont, Can, Natl Research Council of Canada, Ottawa, Ont, Can

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1988年 / 36卷 / 05期

关键词：

CALORIMETRY - CRYSTALLIZATION - Reaction Kinetics - CRYSTALS - Growing;

D O I：

10.1002/app.1988.070360510

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Differential scanning calorimetry (DSC) has been used to study the crystallization kinetics and thermal characteristics of poly(aryl-ether-ether-ketone) (PEEK) samples heated under a variety of conditions. Samples were heated in nitrogen and air at temperatures between 380 and 420 degree C for times up to 120 min. The results indicate that as the holding time and temperature of the melt increased, the amount of recrystallizable material decreased, especially when heated in air. Isothermal crystallization kinetics confirmed the presence of a two-stage crystal nucleation and growth process with Avrami exponents of the order of about 2. 4 and 1. 5 for the first and second processes, respectively.

引用

页码：1097 / 1106

页数：10

共 17 条

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