The invention discloses a lightweight acoustic sound insulation pad for a vehicle. The lightweight acoustic sound insulation pad comprises an upper-layer cotton felt, a middle-layer barrier film and alower-layer cotton felt, wherein the upper-layer cotton felt, the middle-layer barrier film and the lower-layer cotton felt are sequentially connected from top to bottom, the upper-layer cotton feltand the lower-layer cotton felt are prepared from LPET fibers and one or a plurality of materials selected from PET fibers, PP fibers, PA fibers, PLA fibers and other fibers through mixed cotton blending, and the hardness of the upper-layer cotton felt is larger than or equal to the hardness of the lower-layer cotton felt. The invention further discloses a manufacturing method of the lightweight acoustic sound insulation pad for the vehicle, wherein the manufacturing method comprises the steps of preparation of all the layers, spreading, one-time forming and final shaping. According to the invention, the lightweight acoustic sound insulation pad is good in sound absorption and sound insulation effect, light in weight and good in flame retardance and mildew resistance, and has high commercial value.
本发明公开了一种车用轻量化声学隔音垫,包括由上至下依次连接的上层棉毡、中间层阻隔膜以及下层棉毡,所述的上层棉毡与下层棉毡为LPET纤维和PET、PP、PA、PLA等纤维中的一种或多种混合配棉制备而成,且所述上层棉毡的硬度大于或等于所述下层棉毡;本发明还公开了该车用轻量化声学隔音垫的制作方法,包括各层的制备、铺料、一次成型以及最终定型;本发明的吸、隔音效果好,且质量较轻,阻燃性能、抗霉性能均较好,具有较高的商用价值。
Lightweight acoustic sound insulation pad for vehicle, and manufacturing method thereof
一种车用轻量化声学隔音垫及其制作方法
2020-04-17
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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