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Manufacturing method of wear-resistant polyurethane impregnated decorative paper veneer formaldehyde-free glue-based wood-based panel

A technology of impregnating decorative paper and aldehyde-free glue, which is applied in the direction of manufacturing tools, chemical instruments and methods, and the joining of wooden veneers to achieve the effects of improving surface wear resistance, improving indoor environmental quality, and expanding the scope of use

Active Publication Date: 2019-08-06
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a method for manufacturing a wear-resistant polyurethane impregnated decorative paper veneered wood-based panel with no formaldehyde glue. Solve the problem of free formaldehyde while improving performance and decoration performance, improve indoor environmental quality, and expand the application range of formaldehyde-free glue-based wood-based panels

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0028] A method for manufacturing a wear-resistant polyurethane impregnated decorative paper veneer formaldehyde-free glue-based wood-based panel, comprising the following process steps:

[0029] (1) adding nano-cellulose whiskers accounting for 2% of the weight of the formaldehyde-free polyurethane resin to the formaldehyde-free polyurethane resin to obtain a wear-resistant polyurethane resin;

[0030] (2) Choose a quantitative value of 70 g / m 2 decorative paper;

[0031] (3) Immerse the decorative paper in the polyurethane resin that has been added with 2% nano-cellulose whiskers accounting for the weight of the formaldehyde-free polyurethane resin for 2 hours, then put it in an oven and dry it at 100°C for 10 minutes, so that the residual volatile content reaches 5- 10%, made formaldehyde-free polyurethane resin impregnated decorative paper with wear resistance;

[0032] (4) Choose formaldehyde-free particleboard made of isocyanate or formaldehyde-free bean gum;

[0033]...

Embodiment 2

[0036] A method for manufacturing a wear-resistant polyurethane impregnated decorative paper veneer formaldehyde-free glue-based wood-based panel, comprising the following process steps:

[0037] (1) adding nano-cellulose whiskers accounting for 3% of the weight of the formaldehyde-free polyurethane resin to the formaldehyde-free polyurethane resin to obtain a wear-resistant polyurethane resin;

[0038] (2) Choose a quantitative value of 140g / m 2 decorative paper;

[0039] (3) Immerse the decorative paper in the polyurethane resin that has added 3% nano-cellulose whiskers accounting for the weight of the formaldehyde-free polyurethane resin for 2 hours, and then put it in an oven and dry it at 110°C for 8 minutes to make the residual volatile matter reach 5- 10%, made formaldehyde-free polyurethane resin impregnated decorative paper with wear resistance;

[0040] (4) Choose formaldehyde-free particleboard made of isocyanate or formaldehyde-free bean gum;

[0041] (5) Improv...

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Abstract

The invention provides a manufacturing method for a non-formaldehyde adhesive artificial board with abrasion-resistant polyurethane soaked decorative paper as a veneering. The method comprises the following process steps that firstly, abrasion-resistant polyurethane resin is modulated; secondly, the abrasion-resistant polyurethane resin soaked decorative paper is prepared; and thirdly, the veneering of the non-formaldehyde adhesive artificial board is machined. The manufacturing method has the beneficial effects that the environment-friendly character of free of formaldehyde is achieved, the problem of free formaldehyde can be solved, and the indoor environmental quality can be improved; and for the defect that non-formaldehyde polyurethane resin is poor in abrasion resistance, 1-5% of nano-crystalline cellulose whiskers are added into the non-formaldehyde polyurethane resin, the surface abrasion-resistant performance of the non-formaldehyde polyurethane resin can be improved, and the use range of the non-formaldehyde adhesive artificial board is enlarged.

Description

technical field [0001] The invention relates to a method for manufacturing a wear-resistant polyurethane impregnated decorative paper veneer formaldehyde-free glue-based wood-based panel, which belongs to the technical field of wood-based panel processing. Background technique [0002] At present, the adhesives for wood-based panels are mainly urea-formaldehyde resins, phenolic resins, and melamine resins that contain formaldehyde. There is a problem of free formaldehyde, which has a certain impact on the health of consumers. Formaldehyde-free glue-based wood-based panels are particleboard, plywood, fiberboard and other products produced with formaldehyde-free adhesives such as isocyanate and formaldehyde-free bean gum. They are environmentally friendly without adding formaldehyde and are favored by consumers. Since the surface color of formaldehyde-free glue particle board and fiberboard is gray, and the complete solid wood pattern cannot be seen, the formaldehyde-free glue...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/08B32B37/12B32B37/06B32B37/10
CPCB27D1/08B32B37/06B32B37/10B32B37/12B32B2037/1269
Inventor 张洋樊世坤崔举庆贾翀韩书广周兆兵黄润州王晓宇陈凤清
Owner NANJING FORESTRY UNIV
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