Light wall veneer and preparation method thereof

Abstract

The invention discloses a light wall veneer. The light wall veneer comprises a decorative surface layer and a natural fiber reinforced polypropylene plate layer; the decorative surface layer and the natural fiber reinforced polypropylene plate layer are bonded through a moisture curing reaction type polyurethane hot melt adhesive; the natural fiber reinforced polypropylene plate layer is composedof a transition layer, a middle layer and a balance layer, the natural fiber reinforced polypropylene plate layer is formed by: three-dimensionally interweaving 40-60% of natural fiber and 60-40% of polypropylene staple fiber to form a fiber felt, adhering the transition layer and the balance layer to two sides of the fiber felt respectively, and then conducting hot-pressing bonding; wherein the transition layer and the balance layer are polyester non-woven fabrics made of the same material, and the natural fiber reinforced polypropylene plate layer is bonded with the decorative surface layerthrough the transition layer. The natural fiber offcut used in the light wall veneer can be recycled by 100% after being opened, volatile pollutants cannot be generated in the production process, thelight wall veneer is environmentally friendly, and can meet different aesthetic requirements.

Description

Technical field [0001] The invention belongs to the field of wall panels, and in particular relates to a lightweight wall panel and a preparation method thereof. Background technique [0002] Wall facing panels are currently mainly concentrated in solid wood composite panels, wood-plastic panels, stone-plastic panels and other medium and high-density panels. They are made using adhesives, resins, fillers, flame retardants, waterproofing agents, etc., which contain volatile The pollutant material is a synthetic board made by high temperature and high pressure in proportion. During the preparation process, the solvent volatilizes to produce toxic and harmful gases, which are harmful to the human body and the environment. In addition, it is easy to produce particulate dust during the recycling process, and it decomposes slowly, which has a negative impact on the earth's ecological environment. On the other hand, traditional retaining wall facing panels have high density, high hard...

AI Technical Summary

Problems solved by technology

During the preparation process, the solvent volatilizes and produces toxic and harmful gases, which will cause certain harm to the human body and the environment.

In addition, it is easy to generate particulate dust in the process of recycling and decomposes slowly, which has a negative impact on the earth's ecological environment

On the other hand, traditional parapet panels have high density, high hardness and brittleness, low toughness, and are relatively heavy, so they are not suitable for lightweight and modular installation

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