Dynamic mechanical analysis of carbon/epoxy composites for structural pipeline repair

被引：241

作者：

Goertzen, W. K. ^{[1
]}

Kessler, M. R. ^{[1
]}

机构：

[1] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

COMPOSITES PART B-ENGINEERING | 2007年 / 38卷 / 01期

基金：

美国国家科学基金会;

关键词：

polymer-matrix composites (PMCs); carbon fibre; thermal properties; dynamic mechanical analysis (nominated);

D O I：

10.1016/j.compositesb.2006.06.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The viscoelastic behavior of a carbon fiber/epoxy matrix composite material system used for pipeline repair has been evaluated though dynamic mechanical analysis. The effects of the heating rate, frequency, and measurement method on the glass transition temperature (T-g) were studied. The increase in T-g with frequency was related to the activation energy of the glass transition relaxation. The activation energy can be used for prediction of long term performance. The measured tan delta peak T-g's of room temperature cured and post-cured composite specimens ranged from 60 to 129 degrees C. Analysis of T-g data at various cure states was used to determine use temperature limits for the composite repair system. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1 / 9

页数：9

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