Flame retardant rail transit vehicle interior floor

Abstract

The invention relates to a flame retardant rail transit vehicle interior floor, comprising an upper surface layer, a core material and a lower surface layer which are arranged in sequence; the upper surface layer, the core material and the lower surface layer are compounded by heating and pressurizing to form the floor; the core material is compounded from thermoplastic polymer fibers and glass fibers; the upper surface layer and the lower surface layer are compounded from fabrics which are woven by a plurality of layers of unidirectional continuous glass fiber reinforced thermoplastic resin prepreg and / or glass fiber fabric reinforced thermoplastic resin prepreg and / or glass fiber and thermoplastic resin co-extrusion fibers; according to the rail transit vehicle floor provided by the invention, the upper surface layer and the lower surface layer are fabrics which are woven by a plurality of layers of unidirectional continuous glass fiber reinforced thermoplastic resin prepreg and / or glass fiber fabric reinforced thermoplastic resin prepreg and / or glass fiber and thermoplastic resin co-extrusion fibers, and a layer by layer manner is adopted, so that the fibers form a staggered grid, thereby ensuring high longitudinal and lateral properties, and better strength, impact resistance and durability of a product.

Description

technical field [0001] The invention relates to the technical field of plate materials, in particular to a flame-retardant rail transit vehicle interior floor. Background technique [0002] With the rapid development of rail transit, people are paying more and more attention to the lightweight and ride comfort of rail vehicles, and the lightweight and recyclable rail transit materials have attracted more and more attention from OEMs and end customers. The floor occupies a large proportion in the vehicle interior, and its typical floor structure consists of three parts: floor cloth, sandwich panel and sound insulation pad from top to bottom. The present invention is mainly aimed at the so-called sandwich sandwich panel, whose material ranges from plywood to aluminum honeycomb to rigid foam material and composite material. Aluminum honeycomb and its extended sandwich material, although the weight per unit area of ​​this floor is low, the production and installation process is...

AI Technical Summary

Problems solved by technology

However, there are many differences between rail transit vehicles and passenger cars. For example, rail transit vehicles pay more attention to the flame retardancy of materials. The volume of vehicles is larger than that of ordinary passenger cars, and the load is higher; these problems are more likely to be exposed in the subsequent sheet thermoforming process. As a result, the yield rate of final molded parts is greatly reduced, and the cost of quality control and processing costs are significantly increased.

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