微穿孔板-聚合物层状结构材料的制备和吸声性能

doi:10.11901/1005.3093.2020.401

材料研究学报

2021, Vol. 35

Issue (7): 535-542 DOI: 10.11901/1005.3093.2020.401

研究论文

本期目录 | 过刊浏览

微穿孔板-聚合物层状结构材料的制备和吸声性能

徐稳, 王知杰, 朱雯雯, 彭子童, 姚楚, 游峰, 江学良(

)

武汉工程大学材料科学与工程学院武汉 430074

Preparation and Sound Absorption Properties of MPP-polymers Layered Structure Materials

XU Wen, WANG Zhijie, ZHU Wenwen, PENG Zitong, YAO Chu, YOU Feng, JIANG Xueliang(

)

School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China

引用本文:

徐稳, 王知杰, 朱雯雯, 彭子童, 姚楚, 游峰, 江学良. 微穿孔板-聚合物层状结构材料的制备和吸声性能[J]. 材料研究学报, 2021, 35(7): 535-542.
Wen XU, Zhijie WANG, Wenwen ZHU, Zitong PENG, Chu YAO, Feng YOU, Xueliang JIANG. Preparation and Sound Absorption Properties of MPP-polymers Layered Structure Materials[J]. Chinese Journal of Materials Research, 2021, 35(7): 535-542.

全文: PDF(3988 KB) HTML

摘要:

以微穿孔板(MPP)、聚氨酯泡沫(PU)、丁腈橡胶(NBR)和空腔(AG)为原料，根据不同的结构顺序分别制备出MPP-AG共振结构、MPP-PUFM层状结构、MPP-AG-NBR-PUFM多层结构材料和NBR-PUFM-MPP-AG多层结构材料，研究了MMP穿孔率、PUFM厚度、泡沫层孔径、泡沫厚度和结构交替顺序对复合材料吸声性能的影响。结果表明：在频率较低的条件下MPP穿孔率越低或在较高频率条件下MPP穿孔率越高，层状结构材料的吸声系数越高；随着PUFM厚度的增大层状结构材料的共振峰值频率向低频方向移动。与MPP-PUFM层状结构材料相比，MPP-AG-NBR-PUFM在500~1600Hz频率范围的平均吸声系数由0.58提高到0.66；NBR-PUFM-MPP-AG多层结构材料具有优异的中低频吸声性能，频率为400 Hz时最大吸声系数达到0.94，频率为2700 Hz时吸声系数达到0.85。

关键词 ：复合材料, 微穿孔板, 聚氨酯泡沫, 丁腈橡胶, 层状结构, 吸声

Abstract：

MPP-AG resonance structure, MPP-PUFM layered structure, MPP-AG-NBR-PUFM multilayer structure material and NBR-PUFM-MPP-AG multilayer structure material were respectively prepared taking micro-perforated panel (MPP), polyurethane foam (PU), nitrile rubber (NBR) and cavity (AG) micro materials as raw materials, which were placed separately in desired structural order. The effect of MMP perforation rate, PUFM thickness, pore size of foam layer, thickness of foam and alternation order of structure on sound absorption properties of composite materials were investigated. The results show that: at lower frequency, the smaller the MPP perforation rate, and at higher frequency, the higher the MPP perforation rate, the higher the sound absorption coefficient of layered structure materials; With the increase of PUFM thickness, the resonance peak frequency of layered structure materials gradually moves toward the low frequency direction. In comparison with MPP-PUFM, the average sound absorption coefficient of MMP-AG-NBR-PUFM increases from 0.58 to 0.66 in the frequency range of 500~1600 Hz; NBR-PUFM-MPP-AG multi-layer structure material shows excellent sound absorption performance by low and medium frequencies, with the maximum absorption coefficient of 0.94 at 400 Hz and 0.85 at 2700 Hz.

Key words： composite micro-perforated plate polyurethane foam nitrile rubber layered structure sound absorption

收稿日期: 2020-09-27

ZTFLH:

TB332

基金资助:国家自然科学基金(51273154);武汉工程大学研究生教育创新基金(CX2019056)

作者简介: 徐稳，男，1994年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2020.401 或 https://www.cjmr.org/CN/Y2021/V35/I7/535

表1 两种穿孔板吸声结构的结构参数

图1 微穿孔板层状结构的示意图

图2 穿孔率对MPP-PUFM层状结构材料吸声性能的影响

图3 材质对MPP-AG共振结构吸声性能的影响

图4 MPP厚度对MPP-AG共振结构吸声性能的影响

图5 PUFM厚度对MPP-PUFM层状结构材料吸声性能的影响

图6 PUFM材料的光学显微镜照片和孔径分布

图7 PUFM的孔径对MPP-PUFM层状结构材料吸声性能的影响

图8 不同结构的MPP-AG-NBR-PUFM多层结构材料的吸声性能

图9 不同AG/PUFM层厚比的MPP-AG-NBR-PUFM 多层结构材料的吸声

图10 不同PUFM/AG层厚比的NBR-PUFM-MPP- AG多层结构材料的吸声性能

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