Design for noise reduction of the interior of building using microcellular foamed plastics
The microcellular foamed plastics (MCPs) have high material strength,a relatively small cell size,and a high cell density in comparison with conventional foamed plastics.In particular,the small size of cell in MCPs makes many applications possible in a range of fields.Its high reflectivity enables its application as a reflector that is a part of the back light unit in the LED industry.Thanks to its low density and high strength,MCPs can be used as diaphragm in speakers.They also have many other uses.MCPs show a noise suppression property which allows them to be used in the building industry.A soundproofing plate made of MCPs exhibits a better soundproofing property in comparison with a soundproofing plate made of ordinary plastic.In this study,the author manufactured a soundproofing plate using microcellular foamed polypropylene (PP) and assessed the properties of the absorbing and proofing sound.As a result,the findings showed the possibility of using MCPs as a soundproofing plate in the building industry.
Microcellular foamed plastics Sound absorption Sound transmission loss
Kim Hak Bin Han Earl Cha Sung Woon
Department of Mechanical Engineering, Yonsei University, Seoul, 120-749, Korea
国际会议
香港
英文
936-939
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）