Effect of water absorption on the mechanical properties of n-SiC filled recycled cellulose fibre reinforced epoxy eco-nanocomposites

被引：62
|
作者：
Alamri, H. [1 ]
Low, I. M. [1 ]
机构：
[1] Curtin Univ, Dept Imaging & Appl Phys, Perth, WA 6845, Australia
来源：
POLYMER TESTING | 2012年 / 31卷 / 06期
关键词：
Recycled cellulose fibre; Silicon carbide; Mechanical properties; Epoxy matrix; Eco-nanocomposites; Water absorption; NATURAL FIBERS; POLYMER MATRIX; COMPOSITES; BEHAVIOR;
D O I：
10.1016/j.polymertesting.2012.06.001
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of the addition of n-SiC particles on water absorption of n-SiC reinforced RCF/epoxy eco-nanocomposites was studied. Results indicated that water uptake decreased as n-SiC content increased. This was also shown by FTIR observation. The effect of water absorption on the mechanical properties of n-SiC filled RCF/epoxy eco-nanocomposites was investigated as a function of n-SiC content. Due to water absorption, flexural strength, flexural modulus and fracture toughness of n-SiC filled RCF/epoxy eco-nanocomposites significantly decreased compared to dry composites. The effect of n-SiC on these mechanical properties was found to be positive. Flexural strength, flexural modulus and fracture toughness increased by 14.4, 7.5 and 6.1%, respectively, compared to unfilled RCF/epoxy composites after the addition of 5 wt% n-SiC. SEM results showed clean pull out of cellulose fibres as a result of degradation in fibre-matrix interfacial bonding by water absorption. The addition of n-SiC was found to enhance the interfacial adhesion between fibre and matrix. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：810 / 818
页数：9
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