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http://dx.doi.org/10.7473/EC.2014.49.4.267

Magnetorheological Elastomer Based on Reactive Blend of Maleic Anhydride Grafted Chloroprene Rubber and Epoxidized Natural Rubber  

Choi, Jinyoung (Department of Polymer Engineering, University of Suwon)
Chung, Kyungho (Department of Polymer Engineering, University of Suwon)
Publication Information
Elastomers and Composites / v.49, no.4, 2014 , pp. 267-274 More about this Journal
Abstract
Self vulcanizable blend system for magnetorheological elastomer (MRE) has been studied by dispersing magneto responsible particle (MRP) on elastomeric matrix. Chloroprene rubber was modified with maleic anhydride (MAH) using heat and pressure which is called dynamic maleation process. The optimum graft ratio of MAH was found at 10 phr contents and reaction temperature of $100^{\circ}C$. This could be confirmed by FT-IR analysis. Epoxided natural rubber (ENR) was blended with modified CR-g-MAH for self vulcanization. The optimum amounts of ENR was 30 wt% in terms of scorch time and curing rate. MRE was manufactured by electromagnetic equipment and orientation of MRE was confirmed by SEM. Finally, it was found that the tensile strength of anisotropic-MRE was higher than that of isotropic-MRE and the hardness was reverse.
Keywords
magnetorheological elastomer(MRE); maleic anhydride; epoxidized natural rubber; dynamic maleation; self vulcanizable blend system;
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