Environment-friendly rectangular composite plate

Abstract

The invention discloses an environment-friendly rectangular composite plate comprising a surface plate, a bottom plate, and a central layer arranged between the surface plate and the bottom plate. The central layer is a honeycomb paper core. The surface plate and the bottom plate are respectively adhered with the central layer by using glue. The surface plate and the bottom plate both comprise at least one layer of paperboard or paper skin. The central layer also comprises a rectangular frame arranged on the periphery of the honeycomb paper core and glued with the honeycomb paper core. The thickness of the frame is same as that of the honeycomb paper core. According to the invention, the central layer is the honeycomb paper core, and the surface plate and the bottom plate are paper skin or paperboard. The three are all sourced from paper products, such that advantages of light weight and low cost are provided. Wood is not directly used, such that forest resource protection is promoted. The strength of the composite plate reaches that of a wood composite plate or even higher.

Description

technical field [0001] The invention relates to a composite board, in particular to an environment-friendly square composite board. Background technique [0002] Composite panels are generally divided into metal composite panels, wood composite panels, color steel composite panels and rock wool composite panels. Metal composite board refers to a layer of metal plate covered with another metal plate to achieve the effect of saving resources and reducing costs without reducing the use effect (anti-corrosion performance, mechanical strength, etc.); wood composite board is a wooden board Covered on another wooden board, glued in the middle; color steel composite board refers to the thermal insulation composite maintenance board made of panel and bottom board and thermal insulation core material through adhesive (or foaming), suitable for industrial plants and warehouses etc.; rock wool composite board is made of basalt and other natural ores as the main raw materials. The rock ...

AI Technical Summary

Problems solved by technology

Both metal composite panels and wood composite panels can be used in the packaging industry, but they are heavy and expensive. Although wood composite panels are light in weight, their raw material sources are limited. Especially with the reduction of forest resources in our country, new composite panels are needed. The board replaces the existing board used in the packaging industry and the board used in the furniture industry

[0003] For this reason, people have developed a new type of composite sheet, such as the Chinese utility model patent whose publication number is CN201566008U, a kind of plywood paper honeycomb composite sheet for packaging, including a central layer and upper and lower surface layers, and the central layer is a paper honeycomb structure , the upper and lower surface layers are glued with wooden plywood. This composite board has the characteristics of light weight, high strength and low production cost, but the paper honeycomb structure of the central layer has no frame restrictions around it, and it is very easy to bend when it is under heavy pressure. deformation, the bearing capacity is greatly reduced, and the strength is also greatly weakened, which affects the safety of use; and the upper and lower surface layers are glued with wooden plywood, and the source of raw materials is limited; in addition, the center layer and the upper and lower surface layers are easily Moisture affects the service life

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