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Flame-retardant adhesive and flame-retardant wooden recombinant decorative material and preparation method of flame-retardant wooden recombinant decorative material

A flame-retardant adhesive and wood technology, which is applied in the direction of adhesives, adhesive types, wood processing appliances, etc., can solve the problems of high cost of flame-retardant treatment, poor decoration, and flame-retardant adhesives that are not suitable for cold pressing and curing.

Active Publication Date: 2018-10-16
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the existing problems in the prior art that flame-retardant adhesives are not suitable for cold-press curing, high cost of flame-retardant treatment of wooden products, poor decoration and complicated processing technology, and provide a kind of adhesive that is suitable for curing and slicing under normal temperature conditions. Flame-retardant adhesive with integrated flame-retardant and adhesive properties and preparation method thereof, and a flame-retardant wooden recombined decorative material and preparation method thereof

Method used

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  • Flame-retardant adhesive and flame-retardant wooden recombinant decorative material and preparation method of flame-retardant wooden recombinant decorative material
  • Flame-retardant adhesive and flame-retardant wooden recombinant decorative material and preparation method of flame-retardant wooden recombinant decorative material
  • Flame-retardant adhesive and flame-retardant wooden recombinant decorative material and preparation method of flame-retardant wooden recombinant decorative material

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preparation example Construction

[0024] The invention also provides a method for preparing the flame-retardant adhesive, which is obtained by uniformly mixing water-soluble amino resin, thermoplastic resin, dehydration catalyst, char-forming agent and room-temperature curing agent. In the present invention, the mixing of various components can be carried out simultaneously or step by step, and the order of mixing will not affect the performance of the obtained flame-retardant adhesive.

[0025] The present invention also provides a flame-retardant wooden recombined decorative material, which comprises a veneer and a flame-retardant layer formed on the surface of the veneer, and the flame-retardant layer is formed by the flame-retardant adhesive. That is, the flame-retardant adhesive of the present invention is used to replace the original adhesive of high-tech wood, and the original high-tech wood production process is used for production.

[0026] In the present invention, the base material for manufacturing...

Embodiment 1

[0036] 1. Preparation of melamine urea-formaldehyde resin

[0037] Mix 180g formaldehyde, 78g urea and 70g melamine (add in three batches) evenly, then control the pH value of the mixed solution to 8.0-8.5, heat at 90°C for 1 hour, lower the pH to 5.0, and then test the cloud point of normal temperature water, then continue React for 30 minutes, increase the pH to 8.0-8.5 and react for 1 hour to obtain a urea-formaldehyde resin. The molecular weight of the urea-formaldehyde resin is 1000-3000 (the viscosity of the urea-formaldehyde resin is 10-20s at 25°C, and the pot life is greater than 30 days). Aqueous amino resin A1 was obtained.

[0038] 2. Preparation of flame retardant adhesive

[0039] With 100g of above-mentioned melamine urea-formaldehyde resin A1 and 10g polyvinyl acetate, 45g ammonium polyphosphate (polymerization degree is 500), 15g pentaerythritol and 2.5g ammonium chloride solution (20%), 2.5g citric acid solution, obtain Flame retardant adhesive B1.

[0040...

Embodiment 2

[0043] 1. Preparation of flame retardant adhesive

[0044] The flame retardant adhesive was prepared according to the method of Example 1, except that the room temperature curing agent added was 2.0 g of ammonium chloride solution (20%) and 0.5 g of formic acid solution to obtain the flame retardant adhesive B2.

[0045] 2. Preparation of flame retardant technical wood

[0046] Prepare flame-retardant technology wood according to the method of embodiment 1, the difference is that the coating amount is 300g / m 2 , to obtain flame-retardant technology wood C2.

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Abstract

The invention relates to the field of wooden decorative materials, and discloses a flame-retardant adhesive and a flame-retardant wooden recombinant decorative material (technical wood) and a preparation method of the flame-retardant wooden recombinant decorative material. The flame-retardant adhesive comprises water-soluble amino resin, thermoplastic resin, a dehydration catalyst, a carbon forming agent and a room temperature curing agent, wherein the water-soluble amino resin has a molecular weight of 1000 to 3000 and a methylol content of 10 to 15% by weight. The flame-retardant adhesive provided by the invention can integrate the flame-retardant property and the glue-bonding property well at room temperature, can endow an adhesive layer with sufficient elasticity, and is suitable for aslicing process necessary for the production of the technical wood. Therefore, the flame-retardant technical wood prepared based on the flame-retardant adhesive can integrate the flame-retardant function and the decorative function; the process, for flame-retardant treatment of wooden materials by adopting the flame-retardant adhesive or the fire-retardant technical wood provided by the inventionis simple and easy for industrial production.

Description

technical field [0001] The invention relates to the field of wooden decorative materials, in particular to a flame-retardant adhesive, a flame-retardant wooden recombined decorative material and a preparation method thereof. Background technique [0002] Recombined decorative material (MDL), commonly known as "technical wood", is a bio-based material produced by advanced manufacturing technology based on the simulation of the characteristics of natural precious wood, through bionic reconstruction of texture, color and material, with low-quality artificial fast-growing wood as the main raw material. new material. In recent years, people have higher and higher requirements for interior decoration, and a large number of flammable and combustible decorative wood materials have been introduced, which poses a huge threat to people's life and property safety. The mandatory standard of "Requirements and Marking of Combustion Performance of Flame Retardant Products and Components in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/30C09J131/04C09J11/06C09J11/04B27D1/04B27D1/08
CPCB27D1/04B27D1/08C08K2003/323C08L2201/02C09J11/04C09J11/06C09J161/30C08L31/04C08K13/02C08K3/32C08K5/053
Inventor 屈伟吴玉章
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY