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首页> 外文期刊>The Journal of the Textile Institute >Research on sound absorption properties of multilayer structural material based on discarded polyester fiber
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Research on sound absorption properties of multilayer structural material based on discarded polyester fiber

机译:基于废弃聚酯纤维的多层结构材料的吸声性能研究

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摘要

Thermoplastic polyurethane was reinforced with discarded polyester fiber to develop excellent mechanical properties of fiberboard composites, by hot pressing and mixing method. The fiberboard was drilled and made as a perforated plate, which was then coupled with polyester fabric; so a multiple layer structural material with good sound absorption function was achieved. Sound absorption properties were studied by changing holes diameter, air cavity depth, and perforation ratio. Theoretical absorption coefficient was obtained through building analytical model and massive theoretical calculation. It was found that it has good agreement with the experimental results. Hence, the analytical model could be adopted to predict the sound absorption coefficient of multilayer structural composites.
机译:通过热压和混合方法,用废弃的聚酯纤维增强热塑性聚氨酯,从而使纤维板复合材料具有出色的机械性能。将纤维板钻孔并制成多孔板,然后将其与聚酯纤维织物连接;因此获得了具有良好吸声功能的多层结构材料。通过改变孔的直径,气孔深度和穿孔率来研究吸声性能。通过建立分析模型和大量理论计算获得理论吸收系数。发现与实验结果吻合良好。因此,可以采用分析模型来预测多层结构复合材料的吸声系数。

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