Dielectric analysis of the interfacial polarization of alkali treated woven flax fibers reinforced epoxy composites

被引：13
|
作者：
Triki, A. [1 ]
Karray, M. [2 ,4 ]
Poilane, C. [3 ]
Picart, R. [4 ]
Gargouri, M. [2 ]
机构：
[1] Fac Sci Sfax, Lab Mat Composites Polymeres & Ceram, Route Soukra 3018, Tunisia
[2] Fac Sci Sfax, Unite Etat Solide, Route Soukra 3018, Tunisia
[3] Univ Caen Basse Normandie, ENSICAEN, CNRS, CEA,CIMAP,UMR6252, F-14032 Caen, France
[4] Univ Maine, Ecole Natl Super Ingn Mans, CNRS, LAUM,UMR 6613, F-72085 Le Mans, France
来源：
JOURNAL OF ELECTROSTATICS | 2015年 / 76卷
关键词：
Laminates; Flax fibers; Dielectric relaxation; Adhesion; NATURAL-FIBER; MECHANICAL-PROPERTIES; RELAXATION;
D O I：
10.1016/j.elstat.2015.05.017
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Dielectric measurements were performed on alkali treated flax fibers reinforced epoxy composites in the frequency range 0.1 Hz-1 MHz and the temperature range 40-170 degrees C. Two common dielectric relaxations were observed for all composites. The first one appearing at low temperatures was attributed to the water dipoles polarization due to the hydrophilic character of flax fibers. The second one observed at high temperatures was identified to the interfacial polarization. Analysis of this latter using the Havriliak-Negami model showed an improvement of the fibers/matrix adhesion by these alkali treatments. The best adhesion was obtained by the leaching treatment. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 72
页数：6
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