Soundproofing effect of nano particle reinforced polymer composites

  • Jae-Chul Lee
  • Young-Sun Hong
  • Ri-Guang Nan
  • Moon-Kyu Jang
  • Caroline S. Lee
  • Sung-Hoon Ahn
  • Yeon-Jun Kang


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.


Carbon-nanotube Polymer Soundproof Sound insulation Nano particle reinforced polymer composites 


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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Jae-Chul Lee
    • 1
  • Young-Sun Hong
    • 1
  • Ri-Guang Nan
    • 1
  • Moon-Kyu Jang
    • 2
  • Caroline S. Lee
    • 3
  • Sung-Hoon Ahn
    • 1
    • 4
  • Yeon-Jun Kang
    • 1
    • 4
  1. 1.School of Mechanical & Aerospace EngineeringSeoul National UniversitySeoulKorea
  2. 2.LS Cable Ltd.Kyungki-doKorea
  3. 3.Division of Material Science & Chemical EngineeringHanyang UniversityAnsanKorea
  4. 4.Institute of Advanced Machinery and DesignSeoul National UniversitySeoulKorea

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