Title of article
EFFECT OF FILLER LOADING CONCENTRATION, CURING TEMPERATURE AND MOLDING PRESSURE ON THE ELECTRICAL CONDUCTIVITY OF CNTS/GRAPHITE/ EPOXY NANOCOMPOSITES AT HIGH LOADING OF CONDUCTIVE FILLERS
Author/Authors
Suhermana, H. Universiti Kebangsaan Malaysia - Fuel Cell Institute, Malaysia , Suhermana, H. Universiti Kebangsaan Malaysia - Department of Mechanical Materials Engineering, Malaysia , Sulong, A.B. Universiti Kebangsaan Malaysia - Fuel Cell Institute, Malaysia , Sulong, A.B. Universiti Kebangsaan Malaysia - Department of Mechanical Materials Engineering, Malaysia , Sahari, J. Universiti Kebangsaan Malaysia - Fakulti Kejuruteraan dan Alam Bina, Malaysia
From page
74
To page
79
Abstract
Effect of filler loading concentration, curing temperature and molding pressure on the electrical conductivity of Carbon Nanotubes (CNTs)/Graphite/Epoxy nanocomposites at high loading of conductive fillers were investigated. Dispersion and incorporation mechanism between two conductive fillers with different sizes (CNTs and Graphite) in the polymer matrix are the key factors in the fabrication of high electrical conductivity plate. Different loading concentration of CNTs (0~5 wt. %) and graphite (40 ~ 80 wt. %) were dispersed in epoxy resin by a high speed mechanical mixer. Plates were than formed by compression molding. The electrical conductivity of the molded plates were measured by the four point probe method. The electrical conductivity measured the significance of variation in loading concentration, curing temperature and molding pressure. Additional of 5 wt.% of CNTs to graphite/epoxy matrix showed tremendous increase of the electrical conductivity of nanocomposites, approximately 200% higher than the graphite/epoxy composite at the same amount of conducting filler loading concentration. The dispersion quality of single filler composite (graphite/epoxy) and hybrid fillers nanocomposites (CNTs/graphite/epoxy) was observed on the fractured surface by scanning electron microscopic
Keywords
Electrical conductivity , carbon nanotubes , graphite , high conductive plate
Journal title
International Journal of Mechanical and Materials Engineering
Journal title
International Journal of Mechanical and Materials Engineering
Record number
2663350
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