Effects of Particle Size of Coke on the Electrical Property and Hardness of Copper/Coke/Phenolic Resin Composites


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Composites made from phenolic resin are filled with conductive filler mixtures containing coke powder and copper powder. They are fabricated by compression molding, followed by post-curing method. The density, electrical conductivity and hardness of composite are analyzed to determine the influence of coke particle size on the physical, electrical and mechanical properties of composite. It is found that there is a marked dependence of the density, electrical conductivity and hardness on coke particle size. The density and hardness decrease with the increasing of coke particle size. However the electrical conductivity increases with the increasing of coke particle size. The increasing of coke particle size from 0-48 µm to 75-180 µm promotes a considerable increase in electrical conductivity by about 204%. The intra-particle conductivity and connectivity of copper particle could be the main reasons for the increasing of electrical conductivity as coke particle size increases.



Advanced Materials Research (Volumes 581-582)

Edited by:

Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen




M. D. Li et al., "Effects of Particle Size of Coke on the Electrical Property and Hardness of Copper/Coke/Phenolic Resin Composites", Advanced Materials Research, Vols. 581-582, pp. 1027-1030, 2012

Online since:

October 2012




[1] T.A. Ezquerra, M.T. Connor, S. Roy, Alternating-current electrical properties of graphite, carbon-black and carbon-fiber polymeric composites, Comp. Sci. Tech. 61 (2001) 903-909.

DOI: https://doi.org/10.1016/s0266-3538(00)00176-7

[2] A. Boudenne, L. Ibos, M. Fois, Electrical and thermal behavior of polypropylene filled with copper particles, Composites: Part A 36 (2005) 1545–1554.

DOI: https://doi.org/10.1016/j.compositesa.2005.02.005

[3] A.M. Diez-Pascual, M. Naffakh, J.M. Gonzalez-Dominguez, High performance PEEK/carbon nanotube composites compatibilized withpolysulfones-II. Mechanical andelectrical properties, Carbon 48 (2010) 3500–3511.

DOI: https://doi.org/10.1016/j.carbon.2010.05.050

[4] G. Rujijanagul, S. Jompruan, A. Chaipanich, Influence of graphite particle size on electrical properties of modified PZT–polymer composites, Curr. Appl. Phys. 8 (2008) 359–362.

DOI: https://doi.org/10.1016/j.cap.2007.10.031

[5] H.S. Gokturk, T.J. Fiske, D.M. Kalyon, Effects of particle shape and size distributions on the electrical and magnetic properties of nickel/polyethylene composites, J. Appl. Polym. Sci. 50 (1993) 1891–901.

DOI: https://doi.org/10.1002/app.1993.070501105

[6] H.C. Kuan ,C.C.M. Ma, K.H. Chen, Preparation, electrical, mechanical and thermal properties of composite bipolar plate for a fuel cell, J. Pow. Sour. 134 (2004) 7-17.

[7] S.I. Heo, J.C. Yun, K.S. Oh, Han KS, Influence of particle size and shape on electrical and mechanical properties of graphite reinforced conductive polymer composites for the bipolar plate of PEM fuel cells, Adv. Comp. Mater. 15 (2006) 115-126.

DOI: https://doi.org/10.1163/156855106776829356