Water uptake of epoxy composites reinforced with carbon nanofillers

被引：125

作者：

Prolongo, S. G. ^{[1
]}

Gude, M. R. ^{[2
]}

Urena, A. ^{[1
]}

机构：

[1] Univ Rey Juan Carlos, ESCET, Dpt Mat Sci & Engn, Madrid 28933, Spain

[2] Fdn Res Dev & Applicat Composite Mat FIDAMC, Madrid 28906, Spain

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2012年 / 43卷 / 12期

关键词：

Polymer-matrix composites (PMCs); Nano-structures; Environmental degradation; Mechanical properties; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; RESIN; NANOTUBES; NANOCOMPOSITES; TEMPERATURE; NANOFIBERS; DIFFUSION; MATRIX; MODEL;

D O I：

10.1016/j.compositesa.2012.07.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The water absorption behaviour of neat epoxy resin and reinforced with different contents of carbon nanotubes (CNTs) and nanofibres (CNFs) is reported. The water absorption was monitored gravimetrically and its effect on the thermal and mechanical properties was studied. The maximum water content absorbed significantly decreases with the addition of nanofillers, especially in epoxy/CNT composites. This decrease is higher than the behaviour predicted from ideal mixing law. The evolution of glass transition temperature during ageing confirms that water uptake causes several phenomena, such as plasticization and postcuring matrix processes. The effect of water absorption on mechanical properties changes during hygrothermal ageing. At the beginning, the mechanical strength decreases but then it is recovered. This is justified by the presence of different mechanisms of water absorption and interaction with the epoxy matrix. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2169 / 2175

页数：7

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