The invention provides an automobile ceiling glass fiber plate and a preparation method thereof, the automobile ceiling glass fiber plate comprises a surface lining cloth layer and a center layer, the surface lining cloth layer is a non-woven fabric prepared by mixing 50-55% by weight of polyester fibers and 45-50% by weight of hollow polyester fibers; the central layer is a needled felt and is formed by compounding the following raw materials in percentage by weight: 35-40% of polypropylene fiber, 35-40% of glass fiber and 20-30% of hollow PET (Polyethylene Terephthalate) fiber. The polypropylene fibers, the glass fibers and the hollow PET fibers are mutually wound, so that the polypropylene fibers and the glass fibers are not easy to break, and the three-dimensional structures of the two composite materials of the central layer are strengthened; due to the three-dimensional structure of the composite material, sound waves can be repeatedly reflected in the material, in addition, the hollow PET fibers can absorb more sound waves, and the sound insulation performance of the ceiling glass fiber plate is greatly improved. The ceiling glass fiber plate can still keep high sound insulation performance under the condition of low gram weight, and is extremely suitable for manufacturing of light-weight automobile ceilings.
本发明提供一种汽车用的顶棚玻纤板及其制备方法,包括表面衬布层和中心层,所述表面衬布层为重量比50‑55%的聚酯纤维和重量比45‑50%的中空聚酯纤维混合制备的非织造布;所述中心层为针刺毡,包括以下重量份的原料复合而成:丙纶纤维35‑40%、玻璃纤维35‑40%、中空PET纤维20‑30%。丙纶纤维、玻璃纤维和中空PET纤维相互缠绕,使得丙纶纤维和玻璃纤维变得不易折断,强化了中心层这两种复合材料的三维结构;复合材料的三维结构可以使得声波在材料内部进行反复反射,另外中空PET纤维可吸收更多的声波,大大提升了顶棚玻纤板的隔音性能。本发明的顶棚玻纤板在低克重的情况下,依旧能保持高隔音性能,极其适用于轻量化汽车顶棚的制造。
Ceiling glass fiber plate for automobile and preparation method of ceiling glass fiber plate
一种汽车用的顶棚玻纤板及其制备方法
2024-05-14
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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