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聚乙烯醇-炭黑/空心球泡沫复合吸声材料的制备与性能

周潇 张良苗 王力 高彦峰

周潇, 张良苗, 王力, 等. 聚乙烯醇-炭黑/空心球泡沫复合吸声材料的制备与性能[J]. 复合材料学报, 2023, 40(7): 3998-4007. doi: 10.13801/j.cnki.fhclxb.20221102.002
引用本文: 周潇, 张良苗, 王力, 等. 聚乙烯醇-炭黑/空心球泡沫复合吸声材料的制备与性能[J]. 复合材料学报, 2023, 40(7): 3998-4007. doi: 10.13801/j.cnki.fhclxb.20221102.002
ZHOU Xiao, ZHANG Liangmiao, WANG Li, et al. Preparation and properties of polyvinyl alcohol-carbon black/hollow sphere foam sound absorption composites[J]. Acta Materiae Compositae Sinica, 2023, 40(7): 3998-4007. doi: 10.13801/j.cnki.fhclxb.20221102.002
Citation: ZHOU Xiao, ZHANG Liangmiao, WANG Li, et al. Preparation and properties of polyvinyl alcohol-carbon black/hollow sphere foam sound absorption composites[J]. Acta Materiae Compositae Sinica, 2023, 40(7): 3998-4007. doi: 10.13801/j.cnki.fhclxb.20221102.002

聚乙烯醇-炭黑/空心球泡沫复合吸声材料的制备与性能

doi: 10.13801/j.cnki.fhclxb.20221102.002
基金项目: 国家自然科学基金 (51702208);上海市浦江人才计划项目(21 PJD023);上海市教委创新项目(2019-01-07-00-09-E00020)
详细信息
    通讯作者:

    张良苗,博士,副研究员,博士生导师,研究方向为光热调制材料 E-mail: lmzhang@shu.edu.cn

    高彦峰,博士,教授,博士生导师,研究方向为光热调制材料 E-mail: yfgao@shu.edu.cn

  • 中图分类号: TQ174;TB332

Preparation and properties of polyvinyl alcohol-carbon black/hollow sphere foam sound absorption composites

Funds: National Natural Science Foundation of China (51702208); Shanghai Pujiang Program (21 PJD023); Innovation Program of Shanghai Municipal Education Commission (2019-01-07-00-09-E00020)
  • 摘要: 噪声污染影响人类心理和生理健康。多孔材料在中高频段吸声性能较好,但在低频段较差。本文以粉煤灰空心球和水玻璃等为原料,采用两次固化成型工艺制备了空心球泡沫多孔基体材料,再通过真空浸渍、普通热干燥或冷冻干燥等方法在多孔材料中引入柔性聚乙烯醇-炭黑(PVA-C)第二相,最终制得了PVA-C/空心球泡沫复合吸声材料。结果表明:所制备的多孔复合吸声材料的抗压强度达到1.65 MPa,吸声性能相比空心球泡沫多孔材料基体在低频100~1000 Hz提高了35.2%,降噪系数达到0.523,提高了10.1%。研究结果为多孔吸声材料的吸声性能改善和实际应用提供了依据。

     

  • 图  1  PVA∶C不同比例分散液的光学显微镜照片:(a) 5∶1;(b) 10∶1;(c) 20∶1;(d) 50∶1;(e) PVA-C复合薄膜与PVA-C悬浮液照片

    Figure  1.  Optical microscope photographs of dispersions with different PVA∶C ratios: (a) 5∶1; (b) 10∶1; (c) 20∶1; (d) 50∶1; (e) Photographs of PVA-C film and dispersions

    图  2  多孔材料基体((a), (b))、普通热干燥((c), (d))和冷冻干燥((e), (f))处理后附着在基体内孔壁的PVA-C (10∶1)复合薄膜的SEM图像

    Figure  2.  SEM images of porous matrix ((a), (b)), PVA-C (10∶1) composite film adhered to the innerwall of the matrix pore after heat treatment ((c), (d)) and freeze drying ((e), (f))

    图  3  不同PVA-C复合薄膜的XRD图谱

    Figure  3.  XRD patterns of different PVA-C composite films

    图  4  不同PVA-C复合薄膜的FTIR图谱

    Figure  4.  FTIR spectra of different PVA-C composite films

    图  5  不同PVA-C复合薄膜的TG分析曲线(a)及其局部放大图(b)

    Figure  5.  TG analysis curves (a) of different PVA-C composite films and partial enlarged figure (b)

    图  6  不同PVA∶C比例下空心球泡沫多孔复合材料的吸声系数曲线(热干燥) (a)和曲线的局部放大图 (b)

    Figure  6.  Sound absorption coefficients of porous composites with different PVA∶C ratios obtianed by heating drying (a) and its partial enlarged figure (b)

    图  7  多孔材料基体与两种干燥方法处理后所得PVA-C/空心球泡沫多孔复合材料的吸声系数曲线(a)和曲线的局部放大图 (b)

    Figure  7.  Sound absorption coefficients of porous marix and PVA-C/hollow sphere foam composites obtained by two different drying methods (a) and its partial enlarged figure (b)

    图  8  3种多孔吸声材料声波传播示意图

    Figure  8.  Schematic diagram of sound wave propagation of three porous sound absorbing materials

    图  9  近年来文献报道的多孔吸声材料吸声性能比较:(a) 不同试样厚度与500 Hz处吸声系数对应关系;(b) 不同试样厚度与降噪系数对应关系[28, 34-55]

    Figure  9.  Comparison of the sound absorption properties of porous materials reported in recent work: (a) Sound absorption coefficient of samples with different thicknesses at 500 Hz; (b) Noise reduction coefficient of samples withdifferent thicknesses[28, 34-55]

    图  10  三种不同多孔吸声材料的应力-应变曲线

    Figure  10.  Stress-strain curves of three different porous sound absorbing materials

    表  1  样品名称及制备方法

    Table  1.   Sample name and preparation method

    Sample Preparation method
    HSFS Hollow spherical foam porous materials
    HSFS-HD HSFS impregnated with polyvinyl alcohol-carbon black (PVA-C) suspension is heat-dried (HD) at 80℃ for 6 h
    HSFS-FD HSFS impregnated with PVA-C suspension is freeze-dried (FD) at 80℃ for 48 h
    PVA-C composite film PVA-C suspension dried on glass substrate at 80℃ for 4 h
    下载: 导出CSV

    表  2  不同PVA∶C比例的多孔复合材料平均吸声系数α和降噪系数NRC的比较

    Table  2.   Comparison of average sound absorption coefficient α and NRC of porous composites with different PVA∶C ratios

    Sampleα100-1000 Hzα1000-6300 HzNRC
    HSFS0.3040.6680.475
    HSFS-HD (5∶1)0.3530.6870.519
    HSFS-HD (10∶1)0.3410.7290.521
    HSFS-HD (20∶1)0.3270.6720.486
    HSFS-HD (50∶1)0.3270.6530.485
    HSFS-FD0.4110.6520.523
    Notes: α100-1000 Hz—Average sound absorption coefficient in the 100-1000 Hz frequency;
    α1000-6300 Hz—Average sound absorption coefficient in the 1000-6300 Hz frequency; NRC—Noise reduction coefficient of the sample.
    下载: 导出CSV

    表  3  近年来文献报道的多孔吸声材料抗压强度比较

    Table  3.   Comparison of the compressive strength of porous sound-absorbing materials reported in recent works

    MaterialsCompressive strength/MPaRef.
    Silica foam0.94[15]
    PU foam0.01[3]
    Copper foam0.30[6]
    Fly-ash1.20[13]
    Steel slag5.41[14]
    Ceramic1.12[5]
    Geopolymer4.50[52]
    Date palm0.20[16]
    HSFS-HD1.72This work
    HSFS-FD1.65This work
    Note: PU—Polyurethane.
    下载: 导出CSV
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  • 收稿日期:  2022-08-03
  • 修回日期:  2022-09-13
  • 录用日期:  2022-09-24
  • 网络出版日期:  2022-11-02
  • 刊出日期:  2023-07-15

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