文献类型：期刊文献

英文题名：SOUND INSULATION AND MECHANICAL PROPERTIES OF WOOD DAMPING COMPOSITES

作者：Liu, Meihong[1] Peng, Limin[1] Fan, Zhengqiang[1] Wang, Dong[1]

通信作者：Peng, LM[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

年份：2019

卷号：64

期号：4

起止页码：743-758

外文期刊名：WOOD RESEARCH

收录：;EI(收录号：20200308044706);Scopus(收录号：2-s2.0-85077808470);WOS:【SCI-EXPANDED(收录号:WOS:000493902300001)】；

基金：The authors gratefully acknowledge the support of subject of national science and technology support plan "Key technologies and demonstrations of wood sound insulation and heating materials"(2015BAD14B04)

语种：英文

外文关键词：Wood materials; rubber; composite panels; dynamic mechanical properties; sound insulation performance

摘要：The sound insulation performance and mechanical properties of medium density fiberboard (MDF) and rubber multilayer panels were studied. The MDF and rubber materials were compounded under certain conditions of hot pressing, temperature and amount of glue. The weighted sound reduction was 28.0 dB for 6 mm MDF, while it was 37.4 dB for 6 mm wood composite damping material, increased by 25.1%. Compared to the monolayer MDF, the composite panels showed increased sound insulation at the resonant frequency, and the critical frequency moved to a higher frequency. The coincidence valley became shallow, effectively suppressing the anastomosis effect. As the rubber thickness increased, the multilayer composite material exhibited enhanced sound insulation efficiency and mechanical properties, and the damping properties of the composite increased, making the composite resistant to bending deformations caused by incident sound waves.