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Preparation method of high-adhesion paint-free board

A high-adhesion, paint-free board technology, used in flat products, applications, household appliances, etc., can solve the problems of insufficient viscosity, flatness, poor wear resistance, easy to generate gaps, etc., to enhance thermal stability, mechanical The effect of strength enhancement and wear resistance improvement

Pending Publication Date: 2019-11-08
邱朝霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is to provide a high-adhesive paint-free board for the current defects such as easy deformation, poor flatness, poor wear resistance, poor thermal stability, insufficient viscosity, etc. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Sawdust is: Poplar

[0038] Preparation of the reaction product:

[0039] Put asbestos and poplar wood chips into a planetary ball mill at a mass ratio of 10:1, grind for 50 minutes at a ball-to-material ratio of 200r / min to prepare a mixed material, and put the mixed material and deionized water at a mass ratio of 1:10 In the reaction kettle, the temperature inside the reaction kettle was raised to 95°C, and the mixed slurry was prepared by boiling in water at a constant temperature for 80 minutes;

[0040] In above-mentioned reactor, drip the sodium hydroxide solution that the mass fraction of 8% of mixed slurry quality is 20%, stir 30min with the rotating speed of 500r / min with agitator, filter after stirring to obtain filter residue, wash filter residue 3 times with distilled water;

[0041] In parts by weight, 12 parts of the above-mentioned filter residue, 2 parts of sodium citrate, 1.2 parts of potassium chloride, 2 parts of biogas liquid and 8 parts of water ar...

Embodiment 2

[0048] Sawdust is: Birch

[0049] Preparation of the reaction product:

[0050] Put asbestos and birch sawdust into a planetary ball mill at a mass ratio of 10:1, grind for 55 minutes at a ball-to-material ratio of 220r / min to prepare a mixed material, and put the mixed material and deionized water at a mass ratio of 1:10 for reaction In the kettle, the temperature in the reactor was raised to 97°C, and the mixed slurry was prepared by boiling in water at a constant temperature for 90 minutes;

[0051] In above-mentioned reaction kettle, dropwise add the sodium hydroxide solution that the mass fraction of 9% of mixed slurry quality is 22%, stir 35min with the rotating speed of 520r / min with agitator, filter after stirring to obtain filter residue, wash filter residue 4 times with distilled water;

[0052] In parts by weight, 13 parts of the above-mentioned filter residue, 2 parts of sodium citrate, 1.3 parts of potassium chloride, 2 parts of biogas liquid and 9 parts of water...

Embodiment 3

[0059] Sawdust is: Pine

[0060] Preparation of the reaction product:

[0061] Put asbestos and pine wood chips into a planetary ball mill at a mass ratio of 10:1, grind for 60 minutes at a ball-to-material ratio of 240r / min to prepare a mixed material, and put the mixed material and deionized water at a mass ratio of 1:10 for reaction In the kettle, the temperature in the reactor was raised to 100°C, and the mixed slurry was prepared by boiling in water at a constant temperature for 100 minutes;

[0062] In above-mentioned reaction kettle, dropwise add the sodium hydroxide solution that the mass fraction of 10% of mixed slurry quality is 25%, stir 40min with the rotating speed of 550r / min with agitator, filter after stirring to obtain filter residue, wash filter residue 5 times with distilled water;

[0063] In parts by weight, 14 parts of the above-mentioned filter residue, 3 parts of sodium citrate, 1.4 parts of potassium chloride, 3 parts of biogas liquid and 10 parts of ...

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Abstract

The invention discloses a preparation method of a high-adhesion paint-free board, and belongs to the technical field of board preparation. According to the method, wood chips are subjected to high temperature water-cooking and a lye reaction to separate components such as lignin and wood fiber in the wood chips, at the same time, silica in asbestos is dissolved at the lye and high temperature environment, and a silicate component is formed and free in slurry, so that roughness of a mineral fiber component in the asbestos is increased, mechanical strength of the paint-free board is enhanced, deformation is difficult, wear resistance is improved, and thermal stability of the paint-free board is enhanced. According to the method, the wood chips after high temperature water-cooking and the lyereaction are subjected to microbial fermentation treatment, so that the lignin component and the wood fiber component in the wood chips are further decomposed to form a polysaccharide structure, thepolysaccharide has a relatively short carbon chain, a contact area with other surrounding components can be improved, and thereby the adhesion degree is improved, mechanical properties of the paint-free board is improved, the paint-free board is more difficult to deform, and wear resistance is improved.

Description

technical field [0001] The invention discloses a method for preparing a high-adhesion paint-free board, which belongs to the technical field of board preparation. Background technique [0002] Paint-free board is to soak paper with different colors or textures in melamine resin adhesive, then dry to a certain degree of curing, and pave it on particleboard, moisture-proof board, medium density fiberboard, plywood, blockboard or other On the solid wood board, the decorative board is hot-pressed, so it is often called a melamine board. [0003] "Melamine" is one of the resin adhesives used to make this kind of board. Papers with different colors or textures are soaked in resin, dried to a certain degree of curing, and paved on wood boards or solid wood boards. The standard name of the board is melamine impregnated film paper veneer wood-based panel, saying that its melamine board is actually part of its veneer composition. Because the paint-free board has the characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/00C08L97/02C08L89/00C08K13/04C08K7/14C08K3/22C08K3/26C08K7/12C08K3/08B29D7/01
CPCB29D7/01C08K2003/085C08K2003/2241C08K2003/265C08L33/00C08L2201/08C08L97/02C08L89/00C08K13/04C08K7/14C08K3/22C08K3/26C08K7/12C08K3/08
Inventor 邱朝霞
Owner 邱朝霞
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