A melamine ecological board with a core board divided into three to replace the middle board and its manufacturing process

Abstract

The invention discloses a melamine ecological board with a core board divided into three boards in place of a middle board. The melamine ecological board comprises an adhesive layer and the core board, wherein the core board is formed by crisscross splicing three layers of wooden core boards of equal thickness; each wooden core board is formed by piercing a whole piece of log or square timber to form holes and cutting off fibers; rectangular holes of specified density which pierce the board layers are distributed on each wooden core board; a melamine paint-free film is attached to the surface of the core board; polyvinyl chloride is used as an adhesive raw material to pass through the rectangular holes piercing the core board to form the integrated adhesive layer. Most of fibers of the core board are cut off through the rectangular holes, so that the deformation of the melamine ecological board can be prevented; the rectangular holes piercing the board layers on the three layers of wooden core boards with equal thickness are crisscrossed, so that the strength performance is greatly improved; meanwhile the adhesion force of the board layers of the melamine ecological board is enhanced through infiltration of the adhesive, so that the adhesive separation of the board layers can be prevented, the cost performance is high, and the board is economic and practical.

Description

technical field [0001] The invention relates to a melamine ecological board and a manufacturing process thereof, in particular to a melamine ecological board in which a core board is divided into three parts to replace a middle board and a manufacturing process thereof. Background technique [0002] At present, melamine ecological panels are often used in room decoration, furniture manufacturing, and engineering construction. However, the wooden boards of the current fine wood boards are rough surfaces of varying degrees that are not intentionally made. The bonding of the adhesive is mainly surface glue, and the adhesive basically does not enter the interior of the wood boards. It depends on the adhesive performance of the adhesive, so under the premise of moderate price, at present, it can only continue to use adhesives such as urea-formaldehyde with strong adhesiveness, but the chemical stability of formaldehyde and solvent release is not very good to produce melamine ecol...

AI Technical Summary

Problems solved by technology

However, the wooden boards of the current fine wood boards are rough surfaces of varying degrees that are not intentionally made. The bonding of the adhesive is mainly surface glue, and the adhesive basically does not enter the interior of the wood boards. It depends on the adhesive performance of the adhesive, so under the premise of moderate price, at present, it can only continue to use adhesives such as urea-formaldehyde with strong adhesiveness, but the chemical stability of formaldehyde and solvent release is not very good to produce melamine ecological boards. It is impossible to fundamentally remove formaldehyde, solvents and other pollution sources and improve the acid, alkali and water resistance of plywood. Most of them have the following problems: formaldehyde release problem, inconsistent thickness between the middle plate and the core plate, resulting in insufficient strength and easy deformation, degumming between the glued layers, Insufficient heat resistance and waterproof performance