Novel water-resistant composite resin for impregnation of surface layer of laminated wood floor and preparation method of novel water-resistant composite resin

A technology of laminated wood flooring and composite resin, applied in the direction of adding non-polymer organic compounds, special paper, water repellent, etc., can solve the problems of low energy consumption, high formaldehyde emission and fast curing speed of laminated wood flooring, etc. Achieve fast curing speed, good surface performance, and improve the effect of bonding force

Active Publication Date: 2022-03-04
山东亿森美居新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new water-resistant composite resin of the present invention has high water resistance, low curing temperature, and fast curing speed, and has the structural characteristics and performance advantages of melamine-formaldehyde resin, polyvinyl alcohol and isocyanate, and can solve the curing problem of existing modified melamine resins. Problems of high temperature, high brittleness after curing, high cost, and high formaldehyde emission, the prepared laminate flooring has low energy consumption and can be used under wet conditions

Method used

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  • Novel water-resistant composite resin for impregnation of surface layer of laminated wood floor and preparation method of novel water-resistant composite resin
  • Novel water-resistant composite resin for impregnation of surface layer of laminated wood floor and preparation method of novel water-resistant composite resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 300 parts of diphenylmethane diisocyanate, add 8 parts of triethylenediamine, 2 parts of polyethylene glycol monomethyl ether, raise the temperature to 60°C, then gradually add 100 parts of polyvinyl alcohol within 1 hour, and stir for 0.5 hours Finally, take 700 parts of melamine formaldehyde resin, add it to the reaction mixture of polyvinyl alcohol and diphenylmethane diisocyanate, stir for 1 hour, then cool down to room temperature, and obtain a new type of water-resistant composite resin for impregnating the surface layer of the reinforced floor.

[0036] The performance index of the novel water-resistant composite resin for impregnating the laminated floor surface layer prepared in this example is shown in Table 1.

Embodiment 2

[0038] Take 400 parts of diphenylmethane diisocyanate, add 10 parts of triethanolamine, 4 parts of polyethylene glycol phthalate monoester, raise the temperature to 60°C, then gradually add 200 parts of polyvinyl alcohol within 1 hour, and stir for 0.5 hours Finally, take 900 parts of melamine formaldehyde resin, add it to the reaction mixture of polyvinyl alcohol and diphenylmethane diisocyanate, stir for 1 hour, then cool down to room temperature, and obtain a new type of water-resistant composite resin for impregnating the surface layer of reinforced flooring.

[0039] The performance index of the novel water-resistant composite resin for impregnating the laminated floor surface layer prepared in this example is shown in Table 1.

Embodiment 3

[0041] Take 350 parts of diphenylmethane diisocyanate, add 9 parts of triethylamine, 3 parts of polyoxyethylene ether, raise the temperature to 60°C, then gradually add 150 parts of polyvinyl alcohol within 1 hour, and take 800 parts of melamine after stirring for 0.5 hours The formaldehyde resin is added into the reaction mixture of polyvinyl alcohol and diphenylmethane diisocyanate, stirred for 1 hour and then cooled to room temperature to obtain a novel water-resistant composite resin for impregnating the surface layer of reinforced flooring.

[0042] The performance index of the novel water-resistant composite resin for impregnating the laminated floor surface layer prepared in this example is shown in Table 1.

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Abstract

The invention discloses novel water-resistant composite resin for impregnation of a laminated wood floor surface layer and a preparation method of the novel water-resistant composite resin. The novel water-resistant composite resin is prepared from the following raw materials in parts by weight: 300-400 parts of isocyanate, 100-200 parts of polyvinyl alcohol, 700-900 parts of melamino-formaldehyde resin, 8-10 parts of a catalyst and 2-5 parts of a surfactant. By accurately designing a resin formula, the isocyanate, the polyvinyl alcohol and the melamine formaldehyde resin are compounded together to form a new resin structure which comprises the structural characteristics of the three resins and has respective performance characteristics. The prepared novel water-resistant composite resin for impregnating the surface layer of the laminate flooring has the characteristics of high water-resistant bonding strength, high curing efficiency, good transparency of a cured adhesive layer, energy conservation and environmental protection.

Description

technical field [0001] The invention relates to the technical field of thermosetting resins, in particular to a novel water-resistant composite resin for impregnating the surface layer of a reinforced wood floor and a preparation method thereof. Background technique [0002] Laminate flooring is one of the main materials for interior decoration. In 2019, my country imported 65,600 tons of laminate flooring and exported 782,400 tons of laminate flooring. Laminate flooring is generally composed of four layers of materials, namely wear-resistant layer, decorative layer, medium / high density substrate layer and balance (moisture-proof) layer. Among them, the wear-resistant layer and the decorative layer are generally impregnated with special thermosetting amino resin, so the quality of the impregnated resin directly determines the surface performance of the laminate flooring. [0003] Thermosetting amino resins for impregnation are generally required to have good water resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/51D21H17/36D21H17/08D21H17/07D21H21/24D21H21/16D21H27/28
CPCD21H17/51D21H17/36D21H17/08D21H17/07D21H21/24D21H21/16D21H27/28
Inventor 郑自勇郑子才石通秀孙哲郑凯婕
Owner 山东亿森美居新材料科技有限公司
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