The invention provides an automobile front wall inner sound insulation pad and a preparation method and application thereof. The automobile front wall inner sound insulation pad comprises a sound insulation cotton layer, a heavy coating, a pedal cushion block and a PU foaming layer which are sequentially arranged in a stacked mode, and the preparation method comprises the following steps of dryingand pressing to form the sound insulation cotton layer for use; drying, adsorbing and forming the heavy coating, adhering the heavy coating to the pedal cushion block, then foaming, adhering the heavy coating to the pressed and formed sound insulation cotton layer, and finally cutting to obtain the automobile front wall inner sound insulation pad. The sound insulation cotton layer, the heavy coating, the pedal cushion block and the PU foaming layer are structurally adopted to solve the problem of single structure, the overall sound absorption and insulation performance is improved, meanwhile,the pedal cushion block is pre-buried during foaming, the sound insulation performance is further improved while supporting is achieved, and wide application prospects are achieved.

    本发明提供了一种汽车前围内隔音垫及其制备方法和应用。其中,汽车前围内隔音垫包括依次层叠设置的隔音棉层、重涂层、脚踏垫块和PU发泡层,制备方法包括以下步骤:将隔音棉层烘温压制成型,备用;将重涂层烘温吸附成型,与脚踏垫块粘贴,之后进行发泡,接着与压制成型的隔音棉层粘贴,最后切割得到汽车前围内隔音垫。本发明结构上采用隔音棉层+重涂层+脚踏垫块+PU发泡层来解决结构单一问题,整体吸音隔音性能得到提高,同时脚踏垫块在发泡时进行预埋,起到支撑的同时隔音性能进一步提高,具有广阔应用前景。


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    Titel :

    Automobile front wall inner sound insulation pad and preparation method and application thereof


    Weitere Titelangaben:

    一种汽车前围内隔音垫及其制备方法和应用


    Beteiligte:
    GUO HAILONG (Autor:in) / ZHU KEDA (Autor:in)

    Erscheinungsdatum :

    2020-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR





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