The sound absorption and insulation material comprises a sound absorption and insulation material body, the sound absorption and insulation material body is used for reducing medium-frequency noise and comprises a surface layer, a glue film layer and a base layer which are sequentially arranged from top to bottom, the surface layer is a PET layer with the surface density being 200 g/m < 2 >-500 g/m < 2 >, the surface density of the glue film layer is 80 g/m < 2 >-200 g/m < 2 >, the glue film layer is a PP glue film or a PE glue film, and the base layer is made of polypropylene. And the substrate layer is a PET layer with the surface density of 200g/m < 2 >-800g/m < 2 >. The automobile carpet comprises a carpet surface and a felt, the carpet surface is arranged above the felt, and the carpet surface is prepared from the sound absorption and insulation material. The sound absorption and insulation material can effectively reduce intermediate-frequency noise, and has excellent sound absorption and insulation effects at the frequency band of 400-1600 Hz.
本发明公开一种吸隔声材料及汽车地毯,包括吸隔声材料本体,所述吸隔声材料本体用于降低中频噪声,其包括由上至下依次设置的表层、胶膜层、基底层,所述表层是面密度为200g/m2~500g/m2的PET层,所述胶膜层的面密度为80g/m2~200g/m2,所述胶膜层为PP胶膜或PE胶膜,所述基底层是面密度为200g/m2~800g/m2的PET层。本发明汽车地毯包括毯面及毛毡,所述毯面设置于所述毛毡的上方,所述毯面由如上所述的一种吸隔声材料制备而成。本发明吸隔声材料能有效降低中频噪声,在400Hz~1600Hz频段,其具有极佳的吸隔声效果。
Sound absorption and insulation material and automobile carpet
一种吸隔声材料及汽车地毯
2022-12-20
Patent
Electronic Resource
Chinese
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