The invention provides a composite floor for a railway passenger car, a preparation method of the composite floor and the railway passenger car. The composite floor sequentially comprises a first carbon fiber composite board, a reinforcing board, a second carbon fiber composite board and a plastic board. The first carbon fiber composite board and the second carbon fiber composite board are independently made of modified carbon fiber reinforced thermoplastic resin materials; polar groups exist on the surface of the modified carbon fiber. The polar groups existing on the surface of the modified carbon fiber can improve the interface bonding force between the carbon fiber and the thermoplastic resin material, and compared with a carbon fiber composite board which is not subjected to modification treatment, the tensile strength can be improved by 12-25%, and the interlaminar shear strength is improved by 10-20%. The multi-layer structure is combined, and the prepared composite floor has excellent mechanical strength, anti-noise effect and damping effect, is simple in structural design and low in cost, and meets the requirement for light weight of a vehicle body.

    本发明提供了一种用于轨道客车的复合地板、其制备方法及轨道客车。所述复合地板依次包括第一碳纤维复合板、增强板、第二碳纤维复合板和塑料板;所述第一碳纤维复合板和第二碳纤维复合板独立地为改性碳纤维增强的热塑性树脂材料;所述改性碳纤维的表面存在极性基团。所述改性碳纤维的表面存在的极性基团可以提高碳纤维与热塑性树脂材料的界面结合力,与未进行改性处理的碳纤维复合板相比,拉伸强度能提高12~25%,层间剪切强度提高了10~20%。将上述多层结构结合设计,制备得到的复合地板具有优异的机械强度、抗噪声效果、减震效果,且结构设计简单,成本低廉,满足车体轻量化的需求。


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    Title :

    Composite floor for railway passenger car, preparation method of composite floor and railway passenger car


    Additional title:

    一种用于轨道客车的复合地板、其制备方法及轨道客车


    Contributors:
    DENG HAI (author) / LI ZHIGANG (author) / SHAN WEI (author) / WANG XIGANG (author)

    Publication date :

    2023-08-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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