The invention provides a spraying-free thermoplastic composite material automobile exterior trimming part and a preparation method thereof. The spraying-free thermoplastic composite material automobile exterior trimming part comprises a spraying-free sheet material modification layer, an exterior trimming part body and an auxiliary bracket which are sequentially fused and connected from top to bottom, the exterior trimming part body is made of a continuous fiber reinforced thermoplastic plate through the steps of heating, softening and compression molding, and the lightweight design is achieved while enough structural strength is kept by means of the light and high-strength characteristics of the continuous fiber reinforced plate; the auxiliary supports are independently formed and can be flexibly designed according to the use requirements of different application scenes. The spraying-free sheet modification layer is made of spraying-free thermoplastic plastics through extrusion calendering and tape casting processes so as to obtain the appearance effect of ultrahigh smooth finish, and the spraying-free sheet modification layer is fused with the exterior trimming part body, so that the outer surface and the edge of the exterior trimming part body have the spraying-free effect, the appearance quality is improved, and the working procedures are simplified. The composite material can be widely applied to automobile body exterior trimming parts such as an automobile front hatch cover, an automobile door plate, a fender, an automobile roof plate and a fairing.
本发明提供了一种免喷涂热塑性复合材料汽车外饰件及其制备方法,包括自上至下依次熔合连接的免喷涂片材修饰层、外饰件本体和附属支架;外饰件本体采用连续纤维增强热塑性板材经加热软化、模压成型步骤制得,利用连续纤维增强板材的轻质高强特性,在保持足够结构强度的同时,实现轻量化设计;附属支架均独立成型,可以根据不同的应用场景的使用需求灵活设计。免喷涂片材修饰层采用免喷涂热塑性塑料经挤出压延及流延工艺制得,以获得超高光洁度外观效果,并与外饰件本体熔合,使得外饰件本体的外表面和边缘都具备免喷涂效果,提高外观质量,简化工序。本发明可广泛应用于汽车前舱盖、车门板、翼子板、车顶板、导流罩等车身外饰件。
Spraying-free thermoplastic composite material automobile exterior trimming part and preparation method thereof
一种免喷涂热塑性复合材料汽车外饰件及其制备方法
13.05.2025
Patent
Elektronische Ressource
Chinesisch
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