Study of the physical aging of an epoxy/cycloaliphatic amine resin modified with ABS

被引：5

作者：

Ramírez, C ^{[1
]}

Abad, MJ ^{[1
]}

Barral, L ^{[1
]}

Cano, J ^{[1
]}

Díez, FJ ^{[1
]}

López, J ^{[1
]}

机构：

[1] Univ A Coruna, EUP Ferrol, Dept Fis, Ferrol 15405, Spain

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2002年 / 70卷 / 01期

关键词：

acrylonitrile-butadiene-styrene; differential scanning calorimetry; epoxy blends; physical aging;

D O I：

10.1023/A:1020645315107

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Using differential scanning calorimetry (DSC) we have studied the physical aging of an epoxy resin based on the diglycidyl ether of bisphenol A (DGEBA) modified by two different contents of an acrylonitrile-butadiene-styrene (ABS) and cured with 1,3-bisaminomethylcyclohexane (1,3-BAC). Samples fully cured were annealed at temperature of 125degreesC for periods of time of 72 and 120 h, to determine the process of physical aging. The apparent activation energy for the enthalpy relaxation, Deltah*, is determined as the sample is heated at 10degreesC min(-1) following cooling at various rates through the glass transition region. DSC studies suggested that the presence of thermoplastic inhibits the process of relaxation.

引用

页码：85 / 92

页数：8

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