Study on Thermal Conductivity of Filled Silicone Rubber


Article Preview

The heat conductive silicone rubber is prepared with methy1 viny1 silicone rubber as basic gum and SiCp (SiC particle), SiCp/SiCw (SiC whisker), graphite as heat conductive fillers. The effects of filler amount, filler shape, filler size and coupling agent on the thermal conductivity of silicone rubber have been studied in this article. The result shows that when the filling amount is increasing, the thermal conductivity of composite silicone rubber will increase too. There is no evident change for thermal conductivity with the small filling fraction, while the filling amount reaches a certain value, the thermal conductivity of composite increases obviously. Moreover, the thermal conductivity added with coupling agent (KH-602) is higher than that of composite without coupling agent addition.



Edited by:

Chi Zhang






L. X. Ma et al., "Study on Thermal Conductivity of Filled Silicone Rubber", Key Engineering Materials, Vol. 501, pp. 88-93, 2012

Online since:

January 2012




[1] F.J. Xu and Z.M. Qiu: Development and Study on Domestic and Foreign Special Silicone Rubber Material, Elastomer, Vol. 19 (2009), pp.60-64.

[2] Y.R. Fang and J.H. Wang: Research Progress of Thermal Conductivity of Silicone Rubber, Organic Silicone Rubber, Vol. 22 (2008), pp.100-104.

[3] K.M. Yang and F.L. Chen: Development and Study on Thermal Conductive Rubber, Rubber Industry, Vol. 52 (2005), pp.118-123.

[4] L.C. Sim, S.R. Ramanan, H. Ismail, etc: Thermal Characterization of Al2O3 and ZnO Reinforced Silicone Rubber as Thermal Pads for Heat Dissipation Purposes, Thermochimica Acta, Vol. 430(2003), pp.155-165.

DOI: 10.1016/j.tca.2004.12.024

[5] W.Y. Zhou, C.F. Wang and Q.L. An: Thermal Properties of Heat Conductive Silicone Rubber Filled with Hybrid Fillers, Journal of Composite Materials, Vol. 42 (2008), p.173.

DOI: 10.1177/0021998307086184

[6] M.M. Tang, M.Z. Rong and C.G. M: Effect of Surface Treatment and Particle Size of Alumina Filler on Thermal Conductivity of SBR, Synthetic Rubber Industry, Vol. 26 (2), pp.104-107.

[7] Information from the Specification of NETZSCH Co. DSC204.

[8] Information on the Specification of NETZSCH Co. LFA447.

[9] Prasher,R. S: Surface Chemical and Characteristics Based Model for the Thermal Contact Resistance of Fluidic Interstitial Thermal Interface Materials, Journal of Heat Transfer, Vol. 123(2001), p.969.

DOI: 10.1115/1.1388301

[10] L. Li and C.G. Wang: Journal of Polymer Bulletin, Vol. 7 (2007), p.25.

[11] W. Tang, X. Wang and X.L. Cai: New Chemical Materials, Vol. 34 (2006), p.19.

In order to see related information, you need to Login.