Thermal conductivity and electrical conductivity of Epoxy Composites filled with Carbon Nanotubeand Chopped Carbon Fibers

I. Hussan, Sinaa

	Thermal conductivity and electrical conductivity of Epoxy Composites filled with Carbon Nanotubeand Chopped Carbon Fibers
Al-Mustansiriyah Journal of Science
Article 1, Volume 23, Issue 3, 2012, Pages 131-139
Author
Sinaa I. Hussan
Abstract
In this research two composite material was prepared, the first prepared from epoxy resin (EP),which is a matrix, and carbon nanotube(CNT)of percentage weight (0.1,0.2,0.3)%,and the second prepared from epoxy resin and chopped carbon fibers(C.F) of percentage weight (10,20,30)%.All sample were prepared by hand layup process .by using lee disk to determine the coefficient of thermal conductivity at different temperatures. The results showed improvement of thermal conductivity values was measured for the composite materials consisting carbon nanotube ,Also it was found that the thermal conductivity coefficient increased with the increasing percentage weight. The effect of temperature on the thermal conductivity, the thermal conductivity coefficient increased by increasing the test temperature for both composite materials. it was found The D.C conductivity on wt.% filler content at ( 301-473 ) K electrical conductivity of all above composites increased with temperature for composites with filler contact, the excellent electrical conductivity of carbon Nano tube and epoxy (7.3110-9 – 2.4410-9 )Ω.cm . The activation energy of the electrical conductivity is determined and found to decrease with increasing the filler concentration. Key word: - epoxy resin, carbon nanotubes, carbon fiber, thermal conductivity, electrical conductivity

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