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一种具有多层结构的钛酸钡/丁腈橡胶-聚氨酯泡沫复合材料的制备及其吸声性能

Preparation and Sound Absorption Properties of a Barium Titanate/Nitrile Butadiene Rubber-Polyurethane Foam Composite with Multilayered Structure.

作者信息

Jiang Xueliang, Yang Zhen, Wang Zhijie, Zhang Fuqing, You Feng, Yao Chu

机构信息

College of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China.

出版信息

Materials (Basel). 2018 Mar 22;11(4):474. doi: 10.3390/ma11040474.

DOI:10.3390/ma11040474
PMID:29565321
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5951320/
Abstract

Barium titanate/nitrile butadiene rubber (BT/NBR) and polyurethane (PU) foam were combined to prepare a sound-absorbing material with an alternating multilayered structure. The effects of the cell size of PU foam and the alternating unit number on the sound absorption property of the material were investigated. The results show that the sound absorption efficiency at a low frequency increased when decreasing the cell size of PU foam layer. With the increasing of the alternating unit number, the material shows the sound absorption effect in a wider bandwidth of frequency. The BT/NBR-PU foam composites with alternating multilayered structure have an excellent sound absorption property at low frequency due to the organic combination of airflow resistivity, resonance absorption, and interface dissipation.

摘要

将钛酸钡/丁腈橡胶（BT/NBR）与聚氨酯（PU）泡沫相结合，制备出具有交替多层结构的吸声材料。研究了PU泡沫的泡孔尺寸和交替单元数对该材料吸声性能的影响。结果表明，减小PU泡沫层的泡孔尺寸时，低频吸声效率提高。随着交替单元数的增加，材料在更宽的频率带宽内表现出吸声效果。具有交替多层结构的BT/NBR-PU泡沫复合材料由于气流阻力、共振吸收和界面耗散的有机结合，在低频下具有优异的吸声性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/f72f2dbe9cbd/materials-11-00474-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/c64b2acb19f9/materials-11-00474-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/0d13f352f710/materials-11-00474-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/f4f76fe1acec/materials-11-00474-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/dd69ae8ae4a3/materials-11-00474-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/992f602e5384/materials-11-00474-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/f72f2dbe9cbd/materials-11-00474-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/c64b2acb19f9/materials-11-00474-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/0d13f352f710/materials-11-00474-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/f4f76fe1acec/materials-11-00474-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/dd69ae8ae4a3/materials-11-00474-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/992f602e5384/materials-11-00474-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/98aa/5951320/f72f2dbe9cbd/materials-11-00474-g006.jpg

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