Machine pressed plate and processing method thereof

Abstract

The invention discloses a machine pressed plate and a processing method thereof. The surfaces of wood particles of the machine pressed plate are all bonded with glue; the specific processing method comprises the following steps of A, crushing waste wood to obtain a product (a); B, performing high-temperature cooking on the product (a) to obtain a product (b); C, drying the product (b) to obtain aproduct (c); D, heating and stirring the product (c) and the glue, and mixing uniformly to obtain a product (d), wherein the glue is prepared from the following raw materials in parts by weight: 20 to30 parts of phenolic resin glue, 10 to 20 parts of resorcinol, 5 to 15 parts of vinyl acetate, 2 to 10 parts of ethyl acetate, 5 to 15 parts of an emulsifying agent, 7 to 14 parts of an anti-aging agent, 4 to 8 parts of softening oil and 5 to 10 parts of a flame retardant; and E, pouring the product (d) into a mould, tiling, performing hot-pressing and forming to obtain a finished product. The machine pressed plate has the beneficial effects of good water resistance, oxidation resistance and fire resistance, good physical performance, wide application range, long service life, high processingefficiency, low cost and sustainable utilization.

Description

technical field [0001] The invention relates to a machine-pressed plate, in particular to a machine-pressed plate and a processing method thereof. Background technique [0002] Our company is engaged in the processing and sales of machine-pressed boards, and our company's machine-pressed boards are made of crushed waste wood, and the crushed wood is spread on a layer, glue is sprayed on the surface, and a layer of crushed wood is laid flat on the surface. Carry out press molding, repeat tiling-spraying-press bonding molding to the corresponding thickness, and follow-up processing to obtain a machine-pressed sheet. The existing machine-pressed boards have the following problems. Because they are processed in the way of laying-spraying-pressing, when the machine-pressed boards are located in a humid environment or in contact with water for a long time, the wood in the machine-pressed boards will absorb water. The expansion coefficient of wood after absorbing water is large, s...

AI Technical Summary

Problems solved by technology

The existing machine-pressed boards have the following problems. Because they are processed in the way of laying-spraying-pressing, when the machine-pressed boards are located in a humid environment or in contact with water for a long time, the wood in the machine-pressed boards will absorb water. The expansion coefficient of wood after absorbing water is large, so the wood in the machine-pressed board absorbs water and expands, destroying the original bonding structure during the expansion process, resulting in the failure of the machine-pressed board to be used normally. After absorbing water and swelling, the machine-pressed plate in the expanded part will fall off and slag; the existing glue has poor oxidation resistance and fire resistance. In order to solve the above problems, our company has developed a machine-pressed plate and its processing methods

Images