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Effect of Surface Treated Magneto-responsible Particle on the Property of Magneto-rheological Elastomer Based on Silicone Rubber
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  • Journal title : Elastomers and Composites
  • Volume 51, Issue 2,  2016, pp.113-121
  • Publisher : The Rubber Society of Korea
  • DOI : 10.7473/EC.2016.51.2.113
 Title & Authors
Effect of Surface Treated Magneto-responsible Particle on the Property of Magneto-rheological Elastomer Based on Silicone Rubber
Choi, Soyeon; Chung, Kyungho; Kwon, Seunghyuk; Choi, Hyoungjin;
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 Abstract
Magneto-rheological elastomer (MRE) is a material which shows reversible and various modulus under magnetic field. Comparing to conventional rubber vibration isolator, MREs are able to absorb broader frequency range of vibration. These characteristic phenomena result from the orientation of magnetic particle (i.e., chain-like formation) in rubber matrix. In this study, silicone rubber was used as a matrix of MREs. Carbonyl iron particle (CIP) was used to give magnetic field reactive modulus of MRE. The surface of the CIP was modified with chemical reactants such as silane coupling agent and poly(glycidyl methacrylate), to improve interfacial adhesion between matrix and CIP. The mechanical properties of MREs were measured without the application of magnetic field. The results showed that the tensile strength was decreased while the hardness was increased with the addition of CIP. Also, surface modification of CIP resulted in the improvement of physical properties of MRE, but the degree of orientation of CIP became decreased. The analysis of MR effect was carried out using electromagnetic equipment with various magnetic flux. As the addition of CIP and magnetic flux increased, increment of MR effect was observed. Even though the surface modification of CIP gave positive effect on the mechanical properties of MRE, MR effect was decreased with the surface modification of CIP due to decrease of CIP orientation. Throughout this study, it was found that the loading amounts of CIP affected the mechanical properties of MRE, and surface property of CIP was an important factor on MR effect of MRE.
 Keywords
silicone rubber;magnetorheological elastomer (MRE);silane coupling agent;surface modification;
 Language
Korean
 Cited by
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