A vacuum nested high-efficiency cold-resistant structural material

Abstract

The invention discloses a vacuum nesting type high-efficiency cold-resistant structural material. The material is composed of a cold-resistant layer, a heat-insulating material and an interior trimming layer, wherein the cold-resistant layer is composed of a cold-resistant long-glass-fiber reinforced cold-resistant resin material, and the outer surface of the cold-resistant layer is coated with alayer of high-cold-resistance coating; the interior trimming layer consists of a base fabric layer, a supporting layer, a cold-resisting layer and a surface layer, the base fabric layer is a mesh nonwoven layer, the supporting layer is a polyurethane foam layer, the cold-resisting layer is a polyether polyol layer, the surface layer is a polycarbonate layer, and the upper part of the surface layeris provided with a waterborne polycarbonate polyurethane resin surface treatment layer; and a sealed vacuum structure is located between the cold-resistant layer and the interior trimming layer, theinterior of the sealed vacuum structure is filled with a thermal insulation material, and the thermal insulation material is composed of low-thermal-conductivity vacuum insulation boards. The vacuum nesting type high-efficiency cold-resistant structural material disclosed by the invention adopts a vacuum nesting type cold-resistant structure, heat insulation is greatly isolated due to a double-layer vacuum structure, and the internal temperature stability is kept; the surface adopts the cold-resistant layer, and at the same time, the cold-resisting layer is arranged inside, thus the cold-resistant temperature of the cold-resistant layer can reache -40 DEG C to -20 DEG C, and the structure can be served in an alpine environment.

Description

technical field [0001] The invention relates to a high-efficiency cold-resistant structural material, in particular to a vacuum nested high-efficiency cold-resistant structural material. Background technique [0002] With the continuous improvement of the social and economic level and the enhancement of consumption health and safety awareness, people pay more and more attention to the functions and aesthetics of the interior of the car body, the comfort of the ride, and the Environmental protection and cold resistance of interior materials. [0003] Existing cold-resistant materials include general-purpose ABS, long glass fiber reinforced PP composite materials, and PVC leather. ABS has both the toughness and low-temperature impact resistance of PB rubber, the heat resistance and chemical stability of polyacrylonitrile (PAN) resin, and the rigidity and gloss of polystyrene (PS). When used in regions such as Siberia, Russia, the interior parts of the car body made of it wil...

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Problems solved by technology

[0009] For example, the above-mentioned several patents all disclose relevant technical products in this field, but there are few designs on the material structure. Therefore, it is urgent to develop a vacuum nested high-efficiency cold-resistant structural material with better cold-resistant effect and more reasonable structure.

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