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Basic Study for Development of Magneto-rheological Elastomer  

Chung, Kyung-Ho (Department of Polymer Engineering, The University of Suwon)
Yoon, Kyu-Seo (Department of Polymer Engineering, The University of Suwon)
Publication Information
Elastomers and Composites / v.45, no.2, 2010 , pp. 106-111 More about this Journal
Abstract
Magneto-rheological elastomers (MREs) were manufactured by incorporation of magnetic responsible powder (MRP) into natural rubber and silicone rubber. The optimum loading amounts of MRP was 30 vol.% and the natural rubber based MRE (NR-MRE) showed better mechanical property than that of silicone rubber based MRE (S-MRE). However, the modulus shift ratio caused by S-MRE, measured by Self-modified Electromagnet Applied Fast Fourier Transform Analyser (SEFFTA), was higher than that of NR-MRE. The modulus shift ratio caused by NR-MRE was 10%, while the modulus shift ratio caused by S-MRE was 35.7%. The modulus shift ratio could be improved by orienting the magnetic direction of MRP before crosslinking the MRE. The degree of orientation of MRP was analyzed using SEM.
Keywords
magneto-rheological elastomer; magnetic responsible powder; natural rubber; silicone rubber; MR effect;
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