Lifetime prediction of the epoxy system badge n=0/1,2 DCH by thermogravimetric analysis

被引：0
|
作者：
Núñez, L [1 ]
Fraga, F [1 ]
Núñez, MR [1 ]
Villanueva, M [1 ]
机构：
[1] Univ Santiago, Res Grp TERBIPROMAT, Dept Fis Aplicada, E-15706 Santiago, Spain
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2000年 / 78卷 / 06期
关键词：
lifetime; thermogravimetric analysis; epoxy resins;
D O I：
10.1002/1097-4628(20001107)78:6<1239::AID-APP90>3.0.CO;2-X
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Lifetime of the system diglycidyl ether of bisphenol A (BADGE n = 0)/1,2-diamine cyclohexane (DCH) was predicted by thermogravimetric analysis. Lifetime was considered when either 5% weight loss or 5% conversion was reached. Experimental results were treated using two different methods: The first method was independent of the degradation mechanism and the second was based on the thermodegradation kinetic mechanism. The activation energy of the reaction, determined using the Flynn-Wall-Ozawa method, was 148.51 kJ/mol. This value is in a good agreement with that of 144.01 kJ/mol obtained using Kissinger's method. From the experimental results, it was found that the optimum temperature of service for this material is in the range of 100-140 degrees C, at which the corresponding lifetime range is from 27 to 2633 years. (C) 2000 John Wiley & Sons, Inc.
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收藏
页码：1239 / 1244
页数：6
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