Investigation into the Electromagnetic Interference Shielding Effectiveness of Silicon Rubber Filled with Carbon Fiber

Abstract:

In this paper, the silicone rubber composed of carbon fibers was prepared. The influence of different concentration of carbon fibers on the conductivity, electromagnetic shielding interference effectiveness property of the silicone rubber was discussed from the point of view of condition of carbon fiber and silicone rubber. The results showed that there existed the extreme conductivity and shielding effectiveness (SE) across the tested frequency range from 2.6 GHz to 3.95 GHz of silicone rubber composites filled with carbon fibers. When the content of the carbon fibbers was 50 parts per hundred of rubber (phr), the SE values of composites were typically above 63 dB and close to the extremum. The compact packing structure of carbon fibers does not play an important role in improved the conductivity of composite. The SE of the composite depends on the conductivity of composite.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 1392-1396
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.1392
• Online since: October 2011
• Authors: Yong Jun Hu, Hai Yan Zhang, Xiao Ting Xiao, Feng Li, Xiao Ling Cheng, Guang Hui Hu
• Keywords: Carbon Fiber (CF), Electrical Conductivity, Electromagnetic Interference Shielding Effectiveness, Silicon Rubber Composite

References

[1] Y.M. Han, J.Y. Zhang, Q.Y. Yang, L. Shi, S.C. Qi, R.G. Jin, Novel polymethoxylsiloxane-based crosslinking reagent and its in-situ improvement for thermal and mechanical properties of siloxane elastomer, J. Appl. Polym. Sci, vol. 107, pp.3788-3795, March (2008).

DOI: 10.1002/app.27505

[2] E.S. Park, Processibility and mechanical properties of micronized polytetrafluoroethylene reinforced silicone rubber composites, J. Appl. Polym. Sci, vol. 107, pp.372-381, January (2008).

DOI: 10.1002/app.27065

[3] P.B. Liu, D.L. Liu, H.W. Zou, P. Fan, W. Xu, Structure and properties of closed-cellfoam prepared from irradiation crosslinked silicone rubber, J. Appl. Polym. Sci, vol. 113, pp.3590-3595, Septemper (2009).

DOI: 10.1002/app.30341

[4] E.S. Park, Mechanical properties and antibacterial activity of peroxide-cured silicone rubber foams, J. Appl. Polym. Sci, vol. 110, pp.1723-1729, November (2008).

DOI: 10.1002/app.28750

[5] R. Sanden, Castable silicone based heat insulations for jet engines, Polym Test, vol. 21, pp.61-64, January (2002).

DOI: 10.1016/s0142-9418(01)00048-4

[6] L.Y. Jia, Z.J. Du, C. Zhang, C.J. Li, H.Q. Li, Reinforcement of polydimethylsiloxane through formation of inorganic–organic hybrid network, , Polym. Eng. Sci, vol. 48, pp.74-79, January (2008).

DOI: 10.1002/pen.20856

[7] J.G. Kohl, I.L. Singer, D.L. Simonson, Determining the viscoelastic parameters of thin elastomer based materials using continuous microindentation, Polym Test, vol. 27, pp.679-682, Septemper (2008).

DOI: 10.1016/j.polymertesting.2008.04.010

[8] Y.X. Jia, S. Sun, L.L. Liu, S.X. Xue, G.Q. Zhao, Investigation of computer-aided engineering of silicone rubber vulcanizing (I)—vulcanization degree calculation based on temperature field analysis, Polymer, vol. 44, pp.319-326, January (2003).

DOI: 10.1016/s0032-3861(02)00704-8

[9] J. Zhang, S.Y. Feng, Effect of crosslinking on the conductivity of conductive silicone rubber, J. Appl. Polym. Sci, vol. 89, pp.3471-3475, Septemper (2003).

DOI: 10.1002/app.12560

[10] L. Chen, L. Lu, D.J. Wu, G.H. Chen, Silicone rubber/graphite nanosheet electrically conducting nanocomposite with a low percolation threshold, Polym. Compos, vol. 28, pp.493-498, August (2007).

DOI: 10.1002/pc.20323

[11] L. Meunier, G. Chagnon, D. Favier, L. Orgeas, P. Vacher,  Mechanical experimental characterisation and numerical modelling of an unfilled silicone rubber, Polym. Test, vol. 27, pp.765-777, Septemper (2008).

DOI: 10.1016/j.polymertesting.2008.05.011

[12] E.S. Park, Mechanical properties and processibility of glass–fiber-, wollastonite-, and fluoro-rubber-reinforced silicone rubber composites, J. Appl. Polym. Sci, vol. 105, pp.460-468, July (2007).

DOI: 10.1002/app.26063

[13] Q. Xu, M.L. Pang, L.X. Zhu, Y.Y. Zhang, S.Y. Feng, Mechanical properties of silicone rubber composed of diverse vinyl content silicone gums blending, Mater. Des, vol. 31, p.4083–4087, October (2010).

DOI: 10.1016/j.matdes.2010.04.052

[14] Y. P Duan, S. H Liu, H. T Guan, Investigation of electrical conductivity and electromagnetic shielding effectiveness of polyaniline composite, Sci. Technol . Adv. Mater, vol. 6, pp.513-518, July (2005).

[15] A. Kaynak, Electromagnetic shielding effectiveness of galvanostatically synthesized conducting polypyrrole films in the 300–2000 MHz frequency range, : Mater. Res. Bull, vol. 31, pp.845-860, July (1996).

DOI: 10.1016/0025-5408(96)00038-4