Soundproofing effect of nano particle reinforced polymer composites
- 819 Downloads
In this paper, the effects of soundproofing by polymer and carbon-nanotube (CNT) composites were investigated. The specimens for sound insulation measurement were fabricated with Acrylonitrile Butadiene Styrene (ABS)/CNT composites. Tests showed that sound transmission loss of ABS/CNT 15 vol.% composite was higher by 21.7% (4.1 dB) than that of pure ABS specimen at a frequency of 3400 Hz. It was found that the principal factor influencing the improvement of sound insulations of ABS/CNT composites was increased stiffness by CNT additives. To demonstrate the practical applicability of polymer/CNT composites, tests were conducted for the reduction of operational noise from mechanical relay.
KeywordsCarbon-nanotube Polymer Soundproof Sound insulation Nano particle reinforced polymer composites
- H. Zhou, B. Li and G. S., Huang, Sound absorption behavior of multiporous hollow polymer microspheres, Materials Letters, 60(29–30) (2006) 3451–3456.Google Scholar
- S. Lee, D. H. Lee, S. K. Cheong and H. T. Yong, Sound Transmission Loss Measurement of Sound Isolation Materials Using Two-Microphone Impedance Tube Method, Autumn Conference Proceedings of the Korean Society of Mechanical Engineers, (2002) 694–699.Google Scholar