Method for producing full-eucalyptus parquet through dampproof composite urea resin

A solid wood composite floor, urea-formaldehyde resin technology, which is applied in the joining of wooden veneers, aldehyde/ketone condensation polymer adhesives, adhesive types, etc., can solve the problem of unacceptable cost and formaldehyde emission. Quantity standard, increase in sizing amount, etc., to achieve the effect of white color, not easy to arch and deform, and reduce the addition amount

Inactive Publication Date: 2016-12-21
南宁市创锦胶合板有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the amount of sizing increases, and the formaldehyde emission is difficult to meet the national standard for formaldehyde emission
Formaldehyde-free adhesive is used, and the cost is unacceptable

Method used

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  • Method for producing full-eucalyptus parquet through dampproof composite urea resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The method for producing full eucalyptus solid wood composite flooring by adopting moisture-proof composite urea-formaldehyde resin comprises the following steps:

[0071] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into thin slices of 1.5-3 mm thick to obtain eucalyptus veneers, and pick out the unqualified boards with bug holes, decay and excessive defects;

[0072] (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%;

[0073] (3) Gluing: Glue the eucalyptus veneer with a gluing machine, arrange 8 layers of glued eucalyptus veneer criss-cross and layered according to the wood texture structure, and glue them together to obtain a eucalyptus slab; The glue is a moisture-proof composite urea-formaldehyde resin, and the amount of glue on one side is 200g / m 2 ;

[0074] (4) Three times of cold pressing: the eucalyptus slab is cold pressed three times at a unit p...

Embodiment 2

[0100] The method for producing full eucalyptus solid wood composite flooring by adopting moisture-proof composite urea-formaldehyde resin comprises the following steps:

[0101] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into thin slices of 1.5-3 mm thick to obtain eucalyptus veneers, and pick out the unqualified boards with bug holes, decay and excessive defects;

[0102] (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%;

[0103] (3) Gluing: Glue the eucalyptus veneer with a gluing machine, arrange 9 layers of glued eucalyptus veneer criss-cross and layered according to the wood texture structure, and glue them together to obtain a eucalyptus slab; The glue is a moisture-proof composite urea-formaldehyde resin, and the amount of glue on one side is 220g / m 2 ;

[0104] (4) Three times of cold pressing: the eucalyptus slab is cold pressed three times at a unit p...

Embodiment 3

[0130] The method for producing full eucalyptus solid wood composite flooring by adopting moisture-proof composite urea-formaldehyde resin comprises the following steps:

[0131] (1) Rotary slices: use a rotary cutter to cut the eucalyptus into thin slices of 1.5-3 mm thick to obtain eucalyptus veneers, and pick out the unqualified boards with bug holes, decay and excessive defects;

[0132] (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%;

[0133] (3) Glue coating: glue the eucalyptus veneer with a glue machine and arrange 10 layers of glued eucalyptus veneers in a criss-cross pattern according to the wood texture structure, and glue them together to obtain a eucalyptus slab; The glue is a moisture-proof composite urea-formaldehyde resin, and the amount of glue on one side is 230g / m 2 ;

[0134] (4) Three times of cold pressing: the eucalyptus slab is cold pressed three times a...

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Abstract

A method for producing a full-eucalyptus parquet through dampproof composite urea resin comprises the following steps of wood board sheet rotary cutting, veneer drying, gluing, three-time cold pressing, standing curing, three-time hot pressing, heat dissipation curing, slab fixed-thickness sanding, base material surface layer gluing, curing slotting and spraying drying sizing. According to the key of the production method, melamine modified urea resin is adopted as a main adhesive material, and oxidized starch is added as a sticky complexing agent; polyvinyl alcohol serves as a toughening agent; magnesium oxide serves as an anti-aging agent; hexamine and triglycidyl isocyanurate serve as a curing agent; vinyltriethoxysilane serves as a bridging fiber agent; and phenolate lignin is the dampproof composite urea resin prepared through a formaldehyde capture agent and an added dampproof agent. The composite urea resin has the beneficial effects of being low in formaldehyde residual volume and good in water resistance and dampproof performance, so that the produced full-eucalyptus parquet is low in formaldehyde residual volume and is not prone to expansion after absorbing water, arching and deformation are not likely to happen, and an abrasion resisting layer is not prone to damage.

Description

technical field [0001] The invention belongs to the field of artificial board manufacture, in particular to a method for producing full eucalyptus solid wood composite flooring by using moisture-proof 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 disadvantage of unidire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D1/08B27M3/04C09J161/24C09J103/10C09J129/04C09J171/02C09J11/04C09J11/06
CPCB27D1/04B27D1/08B27M3/04C08L2205/035C09J11/04C09J11/06C09J161/24C08L3/10C08L29/04C08L71/02C08K13/02C08K2003/222C08K5/17C08K5/5425C08K5/29
Inventor 王飞虎胡海强唐贤明
Owner 南宁市创锦胶合板有限责任公司
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