Method for preparing flame-proof plywood

A technology of plywood and flame retardant glue, which is used in the joining of wooden veneers, manufacturing tools, wood processing utensils, etc.

Inactive Publication Date: 2008-02-13
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of flammability of existing plywood...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Specific embodiment 1: The flame retardant plywood of this embodiment is prepared according to the following steps: 1. Preparation of multi-effect flame retardant: 17-21 parts of boric acid, 24-56 parts of amidine urea phosphate, 24-56 parts by weight Part of ammonium dihydrogen phosphate, 0.1~1.5 parts of hard water softener and 0.1~2 parts of anti-mold agent are mixed uniformly to obtain a multi-effect wood flame retardant; 2. The multi-effect wood flame retardant prepared in step 1 is formulated to a mass concentration 10%-30% aqueous solution; 3. Soak the wood veneer in the multi-effect wood flame retardant aqueous solution for 0.5 to 180 hours or apply the multi-effect wood flame retardant aqueous solution 3 to 20 times on the surface of the wood veneer, and then Dry under the condition of 60~170℃ until the moisture content is 8%~12%; 4. Coat the surface of the dried wood veneer with flame-retardant glue, the upper and lower adjacent layers of veneers are perpendicular...

specific Embodiment approach 2

[0014] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 2, the multi-effect wood flame retardant prepared in step 1 is formulated into an aqueous solution with a mass concentration of 15% to 25%. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is: in step 2, the multi-effect wood flame retardant prepared in step 1 is formulated into an aqueous solution with a mass concentration of 20%. Other steps and parameters are the same as in the first embodiment.

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Abstract

A manufacturing method for fire resistant veneer relates to a manufacturing method for veneer. The present invention solves the problem that the present veneers are combustible. The present invention of fire resistant veneer is manufactured by the following steps that a multi-effect wood fire retardant and solution are manufactured; soaking or coating and drying; gelatinization, assembly and hot pressure; in this way, the fire resistant veneer is obtained. The present invention of fire resistant veneer has the effect of fire retardation and smoke restraint and the present invention is antiseptic, mold resistant and mothproof.

Description

Technical field [0001] The invention relates to a method for preparing plywood. Background technique [0002] Plywood is widely used in furniture, interior decoration and construction industries, but its flammability also brings great fire hazards. Fires are often caused by the lack of fire resistance of wood materials. Summary of the invention [0003] In order to solve the flammability problem of the existing plywood, the present invention provides a method for preparing the flame-retardant plywood. [0004] The flame-retardant plywood of the present invention is prepared according to the following steps: 1. Preparation of multi-effect flame retardant: by weight, 17-21 parts boric acid, 24-56 parts amidine urea phosphate, and 24-56 parts dihydrogen phosphate Ammonium, 0.1 to 1.5 parts of hard water softener and 0.1 to 2 parts of anti-mold agent are mixed uniformly to obtain a multi-effect wood flame retardant; 2. The multi-effect wood flame retardant prepared in step 1 is form...

Claims

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Application Information

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IPC IPC(8): B27D1/08B27K3/52B27K3/02
Inventor 程瑞香王清文胡景娟张志军
Owner NORTHEAST FORESTRY UNIVERSITY
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