Sound Absorption Properties of PVA Nanofiber Membrane and Nonwoven Composites in Low and Medium Frequency

摘要：

　　In this paper,a kind of light-weight layered sound absorbing material was designed,which has favorable sound ab-sorbing performance in the low and medium frequency regions.A series of PVA nanofiber membranes were prepared by elec-trospinning.The sound absorption properties of nanofiber membrane composite nonwovens in the frequency range of 100~2 500 Hz were measured by the impedance tube.We investigated the sound absorption properties of PVA nanofiber composite nonwovens.The effects of the solvent,TiO2 and cavity depth on the sound absorption properties were also studied.The results showed that the sound absorption performance of the composites was improved in the whole frequency range compared with the ordinary nonwovens.At the same time,the initial frequency that the sound absorption coefficient which was greater than 0.2 moved to the low frequency range.

关键词： Sound absorption PVA nanofiber Nonwoven Composite structure

作者: SHEN Jiahui SHAO Xiaofei YAN Xiong

作者单位: Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China;Department of Technical Textiles,College of Textiles,Donghua University,Shanghai 201620,China

会议类型: 国际会议

会议名称: 2021 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2021)(2021中非纺织服装国际论坛)

会议地点: 线上

会议语种:英文

页码: 5-9

在线出版日期: 2021-11-05（万方平台首次上网日期，不代表论文的发表时间）