The invention relates to an automobile sound insulation pad and a preparation method thereof, and belongs to the technical field of sound insulation materials. The automobile sound insulation pad is prepared from the following raw materials in parts by weight: 20-50 parts of main substrate resin, 30-70 parts of filler, 2-30 parts of a dispersing agent, 2-10 parts of a compatilizer and 1-5 parts of a surface modifier, the filler is hollow glass beads and barium sulfate, and the mass ratio of the hollow glass beads to the barium sulfate is (3-6): (5-9). According to the automobile sound insulation pad, the hollow glass beads and the barium sulfate are matched to serve as filler, propagation of sound waves with different frequencies and wavelengths can be blocked by means of the characteristic of the hollow structure of the hollow glass beads and the high density of the barium sulfate particles, and the sound insulation performance is greatly improved; and compared with other sound insulation fillers such as calcium carbonate 2.8 g/cm < 3 >, the hollow glass beads can bring a better weight reduction effect to the product, so that the weight of the automobile sound insulation pad is reduced by 40% compared with that of a traditional sound insulation pad.

    本发明涉及一种汽车隔音垫及其制备方法,属于隔音材料技术领域。本发明的汽车隔音垫由以下重量份数的原料制成:主基材树脂20~50份、填料30~70份、分散剂2~30份、相容剂2~10份和表面改性剂1~5份;填料为空心玻璃微珠和硫酸钡,空心玻璃微珠和硫酸钡的质量之比为3~6:5~9。本发明的汽车隔音垫以空心玻璃微珠和硫酸钡搭配作为填料,利用空心玻璃微珠的空心结构的特点和硫酸钡颗粒的高密度性能够阻隔不同频率波长的声波的传播,隔音性能大幅度提升;并且相比于其他隔音填料比如碳酸钙2.8g/cm3,空心玻璃微珠能够给产品带来更好的减重效果,使得本发明的汽车隔音垫相比于传统的隔音垫减重达到40%。


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    Title :

    Automobile sound insulation pad and preparation method thereof


    Additional title:

    一种汽车隔音垫及其制备方法


    Contributors:
    SHI QIANKUN (author) / ZHAN YANHUI (author) / SI HAORAN (author) / WANG JIANBIN (author) / WANG KUN (author) / SI ZIHAO (author) / LU YUCHONG (author) / LI XIAOLONG (author) / CAI YAOWU (author) / CAI JIANWU (author)

    Publication date :

    2023-10-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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