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http://dx.doi.org/10.7473/EC.2014.49.2.95

Study on the Design of Butyl Rubber Compound and Noise Reduction System for Sound Insulation  

Kim, Won-Taek (Department of Polymer Engineering, The University of Suwon)
Chung, Kyung-Ho (Department of Polymer Engineering, The University of Suwon)
Publication Information
Elastomers and Composites / v.49, no.2, 2014 , pp. 95-102 More about this Journal
Abstract
The noise between floors of apartment has been hot issue nowadays. In order to improve the noise insulation performance, we proposed the antivibration rubber system which can be applied to the floor system for sound insulation. Among various types of elastomer, butyl rubber showed the good aging characteristic, low rebound resilience and high damping factor. Thus, the butyl rubber was selected as a basic rubber for antivibration rubber system. The effects of type and loading amounts of carbon black on antivibration properties of butyl rubber were studied. The increase of surface area and the content of carbon black resulted in high bound rubber fraction, high mechanical property, low rebound resilience, and high damping factor of butyl rubber. Based on the results of this study, the new antivibration rubber was prepared and applied to the floor system for sound insulation. The impact sounds of floor system proposed in this study were 40 dB and 43 dB in cases of light weight and heavy weight impact sound, respectively.
Keywords
antivibration; butyl rubber; IIR; carbon black; sound insulation; noise reduction;
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