The invention provides a modified inorganic fiber material, a preparation method of the modified inorganic fiber material and an automobile roof composite material, and the modified inorganic fiber material comprises a porous inorganic fiber material and a porous powder material, the porous powder material is distributed on the surface of the porous inorganic fiber material and in the three-dimensional network structure of the internal space of the porous inorganic fiber material through the adhesion of the adhesive; wherein the content of the porous powder material and the adhesive is 10-200g/m < 2 >, the content is equal to (C-B)/A, in the formula, A and B are respectively the surface area and the mass of the porous inorganic fiber material, the unit is m2 and g, C is the total weight of the modified inorganic fiber material, and the unit is g. The sound absorption coefficient of the modified inorganic fiber material is remarkably improved, and the modified inorganic fiber material has efficient sound absorption and noise reduction functions; when the composite material is used as the material of the inorganic fiber material layer in the automobile roof composite material, the sound absorption and noise reduction functions of the automobile roof composite material can be remarkably improved, so that the noise in an automobile can be reduced, and the comfort of passengers in the automobile is improved.

    本发明提供一种改性无机纤维材料及其制备方法和汽车顶棚复合材料,其中,改性无机纤维材料包括多孔的无机纤维材料及多孔粉体材料,多孔粉体材料通过胶粘剂的粘结分布于多孔的无机纤维材料的表面和其内部空间的三维网络结构中;其中,多孔粉体材料和胶粘剂的含量为10‑200g/m2,所述含量=(C‑B)/A,式中A、B分别为多孔的无机纤维材料的表面积和质量,单位分别为m2和g,C为改性无机纤维材料的总重量,单位为g。该改性无机纤维材料的吸音系数显著提升,具有高效的吸音降噪功能;将其用作汽车顶棚复合材料中的无机纤维材料层的材质,可显著提高汽车顶棚复合材料的吸音降噪功能,从而可降低车内噪音,提升车内乘客的舒适性。


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    Title :

    Modified inorganic fiber material, preparation method thereof and automobile roof composite material


    Additional title:

    一种改性无机纤维材料及其制备方法和汽车顶棚复合材料


    Contributors:
    GUO MINGBO (author) / GONG CHANG (author) / ZHANG LEI (author) / MA YUANHONG (author)

    Publication date :

    2024-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / 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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