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Non-formaldehyde-release consolidated composite floor and production method thereof

A technology for reinforced composite floor and formaldehyde release, applied in chemical instruments and methods, synthetic resin layered products, paper/cardboard layered products, etc. Achieve good environmental performance and reduce formaldehyde emissions

Inactive Publication Date: 2016-05-25
圣保罗家居科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This technical solution uses formaldehyde-free additives to produce reinforced composite flooring. Not only is the cost high, but some performance indicators are not up to the existing index of using formaldehyde additives to produce reinforced composite flooring. At this stage, it is difficult to be practically applied in the industry.
[0005] At present, high-density fiberboards made of isocyanate-based (MDI) adhesives have achieved the ecological goals of formaldehyde emission perforation method ≤0.2mg / 100g and dryer method ≤0.2mg / L, but the impregnated film paper for laminate flooring There is no product that can replace melamine formaldehyde resin for the adhesive used, so there are still technical difficulties in producing formaldehyde-free impregnated paper laminated wood flooring with excellent performance

Method used

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  • Non-formaldehyde-release consolidated composite floor and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: produce laminate flooring according to the following steps:

[0038] 1) Preparation of melamine formaldehyde resin

[0039] Add 810 parts by weight of 37wt% formaldehyde and 330 parts by weight of water into the reaction kettle, start the stirrer, and adjust the pH value of the mixture to 9 with sodium hydroxide;

[0040] Add 700 parts by weight of melamine, raise the temperature to 80°C, and keep the pH at 9;

[0041] Raise the temperature to 95°C, keep the temperature for 15 minutes, and keep the pH value at 9;

[0042]Insulate at a temperature of 95°C until the glue sample appears turbid in 20°C water, measure the viscosity with a Tu-4 cup to be 14S, and the pH value is above 9;

[0043] Cool down to 82°C, add 30 parts by weight of urea, keep warm until the viscosity is 14.5S when measured with a Tu-4 cup;

[0044] Add 10 parts by weight of guinellactam;

[0045] When cooling to 75°C, add 65 parts by weight of urea and 20 parts by weight of diethyle...

Embodiment 2

[0056] Embodiment 2: produce laminate flooring according to the following steps:

[0057] 1) Preparation of melamine formaldehyde resin

[0058] Add 860 parts by weight of 37wt% formaldehyde and 350 parts by weight of water into the reaction kettle, start the agitator, and adjust the pH value of the mixture to 9.5 with sodium hydroxide;

[0059] Add 700 parts by weight of melamine, raise the temperature to 82°C, and keep the pH value at 9.5;

[0060] Raise the temperature to 97°C, keep the temperature for 10 minutes, and keep the pH value at 9.5;

[0061] Keep warm at 95°C until the glue sample appears turbid in 20°C water, measure the viscosity with Tu-4 cup to be 14-14.5S, and the pH value is above 9;

[0062] Cool down to 85°C, add 40 parts by weight of urea, keep warm until the viscosity is 14.5-15S when measured with a Tu-4 cup;

[0063] Add 20 parts by weight of guinellactam;

[0064] When cooling to 78°C, add 40 parts by weight of urea and 40 parts by weight of diet...

Embodiment 3

[0075] Embodiment 3: produce laminate flooring according to the following steps:

[0076] 1) Preparation of melamine formaldehyde resin

[0077] Add 840 parts by weight of 37wt% formaldehyde and 340 parts by weight of water into the reactor, start the stirrer, and adjust the pH value of the mixture to 9.2 with sodium hydroxide;

[0078] Add 700 parts by weight of melamine, raise the temperature to 81°C, and keep the pH value at 9.2;

[0079] Raise the temperature to 96°C, keep the temperature for 12 minutes, and keep the pH value at 9.2;

[0080] Insulate at a temperature of 95°C until the glue sample appears turbid in 20°C water, measure the viscosity with a Tu-4 cup to be 14.2S, and the pH value is above 9;

[0081] Cool down to 83°C, add 35 parts by weight of urea, keep warm until the viscosity measured with a Tu-4 cup is 14.8S;

[0082] Add 15 parts by weight of guinellactam;

[0083] When cooling down to 76°C, add 55 parts by weight of urea and 30 parts by weight of d...

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PUM

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Abstract

A non-formaldehyde-release consolidated composite floor and a production method thereof are disclosed, the non-formaldehyde-release consolidated composite floor from the surface to the bottom sequentially comprises an impregnated wear-resistant paper layer; an impregnated decorative paper layer; a high-density fiberboard substrate layer prepared from a MDI ecological adhesive; and an impregnated balance paper layer; and the production process is as follows: using 37wt% formaldehyde, melamine, urea, hexanolactam and diethylene glycol for preparation of melamine formaldehyde resin; mixing 1.4 to 1.6 parts by weight of cetyl trimethyl ammonium bromide and 55 to 57 parts by weight of deionized water, stirring evenly, adding 18 to 20 parts by weight of a tea extract and 23 to 24 parts by weight of carbonyldiimidazole for preparation of a formaldehyde catcher; using the obtained melamine formaldehyde resin and formaldehyde catcher, and urine phthalic acid and triethanolamine for preparation of impregnation resin; using the obtained impregnation resin for preparation of impregnated wear-resistant paper, impregnated decorative paper and impregnated balance paper; and using a high-density fiberboard prepared by the MDI ecological adhesive, and the prepared impregnated wear-resistant paper, impregnated decorative paper and impregnated balance paper for preparation of the consolidated composite floor.

Description

technical field [0001] The invention relates to the technical field of reinforced wood flooring, in particular to a formaldehyde-free reinforced composite floor and a production method thereof. Background technique [0002] Laminate flooring, also known as impregnated paper laminated wood flooring, consists of a wear-resistant layer, a decorative layer, a high-density substrate layer, and a balance (moisture-proof) layer. One or more layers of special paper impregnated with thermosetting amino resin, paved on the surface of particleboard, high-density fiberboard and other wood-based panels, with a balance layer on the back and a wear-resistant layer on the front, and then hot-pressed and formed. It has the characteristics of wear resistance, rich styles, impact resistance, deformation resistance, pollution resistance, flame retardant, moisture resistance, environmental protection, no fading, easy installation, easy care, and can be used for floor heating, etc. In the prior ...

Claims

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Application Information

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IPC IPC(8): B32B29/02B32B27/04B32B21/02B32B21/06E04F15/04
CPCB32B29/02B32B21/02B32B21/06B32B27/04B32B29/005B32B2260/028B32B2260/046B32B2262/067B32B2307/554B32B2419/02E04F15/046
Inventor 符兴义杨素文蒋昌玉
Owner 圣保罗家居科技有限公司
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