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Method for adopting high-temperature-resisting composite urea resin for producing whole-eucalyptus solid wood composite floor

A technology of compounding urea-formaldehyde resin and solid wood composite flooring, which is applied in the jointing of wooden veneers, other plywood/plywood appliances, polymer adhesive additives, etc., can solve problems such as cracking, improve aging resistance, and film-forming Good performance, good freeze-thaw resistance

Active Publication Date: 2017-01-04
广西横县正林木业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned technical defects, the purpose of the present invention is to provide a method for producing full eucalyptus solid wood composite flooring by using high-temperature-resistant composite urea-formaldehyde resin, so as to solve the problem of high-intensity ultraviolet radiation or long-term ultraviolet radiation. cracking problem

Method used

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  • Method for adopting high-temperature-resisting composite urea resin for producing whole-eucalyptus solid wood composite floor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The method for producing full eucalyptus solid wood composite flooring by adopting high-temperature-resistant composite urea-formaldehyde resin comprises the following steps:

[0070] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into 1.5-3 mm thick slices to obtain eucalyptus veneers, and pick out the unqualified boards with insect eyes, decay and excessive defects;

[0071] (2) Veneer drying: Dry the eucalyptus veneer with a hot air stove, and control the moisture content of the veneer to be less than or equal to 10%;

[0072] (3) Glue application: use a glue applicator to apply glue to the eucalyptus veneers and arrange 8-10 layers of glued eucalyptus veneers in criss-cross layers according to the wood texture structure, and glue them together to get the eucalyptus planks Blank; the glue is a high temperature resistant composite urea-formaldehyde resin, and the amount of glue on one side is 200g / m 2 ;

[0073] (4) Three times of cold pressing: the eu...

Embodiment 2

[0097] The method for producing full eucalyptus solid wood composite flooring by adopting high-temperature-resistant composite urea-formaldehyde resin comprises the following steps:

[0098] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into 1.5-3 mm thick slices to obtain eucalyptus veneers, and pick out the unqualified boards with insect eyes, decay and excessive defects;

[0099] (2) Veneer drying: Dry the eucalyptus veneer with a hot air stove, and control the moisture content of the veneer to be less than or equal to 10%;

[0100] (3) Glue application: use a glue applicator to apply glue to the eucalyptus veneers and arrange 8-10 layers of glued eucalyptus veneers in criss-cross layers according to the wood texture structure, and glue them together to get the eucalyptus planks Blank; the glue is a high temperature resistant composite urea-formaldehyde resin, and the amount of glue on one side is 210g / m 2 ;

[0101] (4) Three times of cold pressing: the eu...

Embodiment 3

[0125] The method for producing full eucalyptus solid wood composite flooring by adopting high-temperature-resistant composite urea-formaldehyde resin comprises the following steps:

[0126] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into 1.5-3 mm thick slices to obtain eucalyptus veneers, and pick out the unqualified boards with insect eyes, decay and excessive defects;

[0127] (2) Veneer drying: Dry the eucalyptus veneer with a hot air stove, and control the moisture content of the veneer to be less than or equal to 10%;

[0128] (3) Glue application: glue the eucalyptus veneer with a gluing machine and arrange 8-10 layers of glued eucalyptus veneer criss-cross and layered according to the wood texture structure, and glue them together to get the eucalyptus veneer Blank; the glue is a high temperature resistant composite urea-formaldehyde resin, and the amount of glue on one side is 230g / m 2 ;

[0129] (4) Three times of cold pressing: the eucalyptus sla...

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Abstract

The invention discloses a method for adopting high-temperature-resisting composite urea resin for producing a whole-eucalyptus solid wood composite floor. The method includes the steps of board rotary slicing, veneer drying, gluing, three times of cold pressing, standing maintaining, three times of hot pressing, heat dissipating maintaining, slab fixed-thickness sanding, base material surface layer gluing, maintaining grooving and paint spraying, drying and sizing. The production method is characterized in that the high-temperature-resisting composite urea resin is prepared by adopting melamine modified urea resin as the main material of an adhesive, adding oxidized starch as a viscosity complexing agent, adopting polyvinyl alcohol as a toughening agent, adopting hydrogenated rosin as an antioxidant, adopting polyisocyanate as a curing agent, adopting isobutyl triethoxy silane as a bridging agent, adopting phenolate lignin as a formaldehyde catching agent and adding high-temperature-resisting filler. The high-temperature-resisting composite urea resin prepared through the method is used for producing the whole-eucalyptus solid wood composite floor so that the whole-eucalyptus solid wood composite floor can have good heat resistance performance, no obvious crack phenomenon happens under high-temperature and high-strength ultraviolet irradiation or long-time ultraviolet irradiation, and economic losses are reduced.

Description

technical field [0001] The invention belongs to the field of wood-based panel manufacturing, in particular to a method for producing full eucalyptus solid wood composite flooring by using high-temperature-resistant composite urea-formaldehyde resin. Background technique [0002] With the development of China's economy and the improvement of people's living standards, the requirements for home decoration are also constantly increasing. Because of its natural and beautiful texture and good texture, wooden floor has become the first choice material for home floor decoration. Solid wood composite flooring overcomes the shortcomings of solid wood flooring swelling and shrinking, has good dimensional stability, and at the same time retains the natural wood grain and comfortable foot feeling of solid wood flooring, thus becoming an important variety in flooring. Solid wood composite flooring is made of cross-laminated boards of different tree species, which overcomes the disadvant...

Claims

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Application Information

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IPC IPC(8): B27M3/04B27D1/08B27D5/00B27G11/00C09J161/30C09J103/10C09J11/08C09J11/06C09J11/04
CPCB27D1/08B27D5/00B27G11/00B27M3/04C08L2201/08C08L2205/035C09J161/30C08L3/10C08L29/04C08K7/12C08K3/34C08K2003/2241
Inventor 陈姗姗
Owner 广西横县正林木业有限公司
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