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Vol. 25 No. 9 (2013): Vol 25 Issue 9

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Effect of the Particle Orientation on the Magneto-Rheological Behaviour of Carbonyl Iron Powder-Filled Natural Rubber

https://doi.org/10.14233/ajchem.2013.F12
Junwan Lee
Department of Polymer Engineering, The University of Suwon, Suwon, Republic of Korea
Moonsu Park
Department of Polymer Engineering, The University of Suwon, Suwon, Republic of Korea
Kyungho Chung
Department of Polymer Engineering, The University of Suwon, Suwon, Republic of Korea
Jihyun Yoon
School of Mechanical Engineering, Hanyang University, Seoul, Republic of Korea
Jaeeung Oh
School of Mechanical Engineering, Hanyang University, Seoul, Republic of Korea
Minsoo Kim
Hyundai Mortor Co., Hwaseong, Republic of Korea
Seonghoon Lee
Hyundai Mortor Co., Hwaseong, Republic of Korea

Corresponding Author(s) : Kyungho Chung

khchung@suwon.ac.kr

Asian Journal of Chemistry, Vol. 25 No. 9 (2013): Vol 25 Issue 9

Abstract

Compared to a conventional rubber vibration isolator, a magneto-rheological elastomer (MRE) can absorb a broader frequency range of vibrations. The characteristic phenomena results from the orientation of magneto responsible particles via chain-like formation in a rubber matrix. In this study, natural rubber was used as the matrix to manufacture magneto-rheological elastomers. Carbonyl iron powder, which has a rapid magnetic reaction, was selected as the magnetic particle to create a magnetic field reactive modulus. The mechanical properties of the manufactured magneto-rheological elastomers were measured without the application of a magnetic field. With the addition of carbonyl iron powder, the tensile property decreased and the hardness increased. The magneto-rheological effect was analyzed using a fast Fourier transform analyzer with various magnetic fluxes. The magneto-rheological effect also increased with increasing carbonyl iron powder content and magnetic flux. In addition, the carbonyl iron powder loading affected the mechanical properties of magneto-rheological elastomer. A modulus variable vibration isolator can be developed if the mechanical properties and manufacturing process of magneto-rheological elastomer are controlled properly by the magnetic field.

Keywords

Magneto-rheological elastomer Rubber vibration isolator Carbonyl iron powder Fast Fourier transform analyzer
Lee, J., Park, M., Chung, K., Yoon, J., Oh, J., Kim, M., & Lee, S. (2013). Effect of the Particle Orientation on the Magneto-Rheological Behaviour of Carbonyl Iron Powder-Filled Natural Rubber. Asian Journal of Chemistry, 25(9), 5176–5180. https://doi.org/10.14233/ajchem.2013.F12
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