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Composite multilayer board for furniture and preparation method of composite multilayer board

A multi-layer board and furniture technology, applied in the field of furniture, can solve the problems of poor water resistance and fire resistance of adhesives, and achieve the effects of improving compatibility, water resistance and fire resistance, and improving water resistance

Active Publication Date: 2022-04-12
江苏北方大发木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a composite multi-layer board for furniture and its preparation method, so as to solve the technical problems of existing adhesives with poor water resistance and fire resistance.

Method used

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  • Composite multilayer board for furniture and preparation method of composite multilayer board

Examples

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Effect test

Embodiment 1

[0025] A preparation method for a composite multilayer board for furniture, comprising the following preparation steps:

[0026] (1) plank pretreatment: poplar plank is put into 10wt% sodium hydroxide solution and soaked for 8h, obtains pretreated plank;

[0027] (2) Preparation of composite adhesive: 80g silica modified konjac flour, 30g polyacrylamide modified montmorillonite, 8g polyvinyl alcohol, 4g magnesium oxide, 2g vinyltriethoxysilane, 2g paraffin Stir and mix the emulsion and 50g of water evenly to obtain a composite adhesive;

[0028] Wherein, the preparation method of silicon dioxide modified konjac flour is as follows: 5g nano silicon dioxide is added in the 500mL ethanol aqueous solution (the mass fraction of ethanol is 60%), disperse evenly, then add 20g konjac flour wherein, at 40 ℃ Stir evenly, then add 2g of silane coupling agent KH-550 to it, stir and react at 60°C for 8h, after the reaction is completed, wash, filter and dry the product to obtain silica-mo...

Embodiment 2

[0032] A preparation method for a composite multilayer board for furniture, comprising the following preparation steps:

[0033] (1) plank pretreatment: put poplar plank into 12wt% sodium hydroxide solution and soak for 10h to obtain pretreated plank;

[0034] (2) Preparation of composite adhesive: 100g silica modified konjac flour, 40g polyacrylamide modified montmorillonite, 12g polyvinyl alcohol, 5g magnesium oxide, 3g vinyltriethoxysilane, 4g paraffin Stir and mix the emulsion and 60g of water evenly to obtain a composite adhesive;

[0035] Wherein, the preparation method of silicon dioxide modified konjac flour is as follows: 8g nano silicon dioxide is joined in the 500mL ethanol aqueous solution (the mass fraction of ethanol is 60%), disperse evenly, then add 25g konjac flour wherein, at 40 ℃ Stir evenly under low pressure, then add 3g of silane coupling agent KH-550 to it, stir and react at 60°C for 8h, after the reaction is completed, wash, filter and dry the product ...

Embodiment 3

[0039] A preparation method for a composite multilayer board for furniture, comprising the following preparation steps:

[0040] (1) plank pretreatment: put poplar plank into 15wt% sodium hydroxide solution and soak for 8h to obtain pretreated plank;

[0041] (2) Preparation of composite adhesive: 120g silica modified konjac flour, 50g polyacrylamide modified montmorillonite, 10g polyvinyl alcohol, 6g magnesium oxide, 3g vinyltriethoxysilane, 5g paraffin Stir and mix the emulsion and 50g of water evenly to obtain a composite adhesive;

[0042] Wherein, the preparation method of silicon dioxide modified konjac powder is as follows: 10g nanometer silicon dioxide is joined in the 500mL ethanol aqueous solution (the mass fraction of ethanol is 60%), disperses uniformly, then adds 30g konjac powder wherein, at 40 ℃ Stir evenly at high temperature, then add 4g of silane coupling agent KH-550 to it, stir and react at 60°C for 8h, after the reaction is completed, wash, filter and dry...

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PUM

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Abstract

The invention discloses a composite multilayer board for furniture and a preparation method thereof.The preparation method comprises the three steps of wood board pretreatment, composite adhesive preparation and composite multilayer board preparation, konjaku flour is modified through silicon dioxide, hydrophilic groups in the konjaku flour can be well protected, meanwhile, hydrophobic Si-O groups are exposed, and therefore the composite multilayer board has the advantages that the moisture content of the konjaku flour is reduced; the preparation method comprises the following steps: adding the konjac flour into a montmorillonite dispersion liquid, reducing the hydrophilicity of the konjac flour, further improving the water resistance of the adhesive, adding cationic polyacrylamide into the montmorillonite dispersion liquid, and carrying out ion exchange on cations in polyacrylamide and Na < + > between montmorillonite layers, so that polyacrylamide enters the montmorillonite layers, thereby effectively opening the intervals between the montmorillonite layers, and further improving the water resistance of the adhesive. According to the present invention, the compatibility between the montmorillonite and the konjaku flour is improved, and the amino group in the polyacrylamide reacts with the konjaku flour so as to further improve the interaction between the montmorillonite and the konjaku flour, such that the water resistance and the fire resistance of the adhesive are significantly improved.

Description

technical field [0001] The invention relates to the technical field of furniture, in particular to a composite multilayer board for furniture and a preparation method thereof. Background technique [0002] With the improvement of living standards, people's requirements for the indoor living environment are getting higher and higher, including the manufacturing quality of furniture. The various boards used to make furniture are basically boards made of wood, including solid wood boards, bamboo boards , Plywood, Blockboard, MDF and Particleboard etc. [0003] The use of composite boards is inseparable from adhesives, and most of the adhesives on the market are phenolic adhesives, which will slowly release formaldehyde over time, causing considerable damage to the human body. Adhesives also have the problem of water resistance. In addition, the composite board is a flammable material. Once it catches fire, the fire will spread rapidly, and the consequences will be disastrous. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27K3/16C09J105/00C09J129/04C09J11/04
Inventor 秦永欣于福全孙立海李贵发赵春玲
Owner 江苏北方大发木业有限公司
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