Effect of Dynamic Mechanical Property on Sound Absorption Property of PNBR/PVC Composite
In order to study the relationship between sound absorption property and dynamic mechanical damping property, in this paper, PVC (Polyvinyl chloride), PNBR (Nitrile rubber powder) and DOP (Dioctyl phthalate) were main raw materials. Samples were prepared through changing the mass ratio of PVC and PNBR. And sound absorption coefficient of samples with different proportion at different frequency were analyzed through the standing wave tube two channel analyzer, and the damping properties of samples were tested through DMA (Dynamic mechanical analysis), and then molecular structures of composite material could be predicted. The result showed that when mass ratio of PVC, PNBR and DOP is 70:30:130, the material possessed better sound absorption property and the value of damping peak at the same temperature reached maximum, qualitative relationship was proved.
Composite material Dynamic mechanical property Molecular structure Sound absorption property
Shi Zhuo Fu Yaqin Yu Laiming Yang Tianbing
Key Laboratory of Advanced Textile Materials and Manufacturing Technology ,Ministry of Education, Zhejiang Sci-Tech University, Hangzhou,Zhejiang 310018, China
国际会议
上海
英文
1048-1051
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）