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Compact imporous wood coating and preparation method therefor

A wood coating and densification technology, applied in the field of dense non-porous wood coatings and its preparation, can solve the problems of poor water resistance and solvent resistance, poor sandability and insufficient adhesion of the coating film, and achieve good solvent resistance and no shrinkage on the surface. Pore, good bacteriostatic effect

Inactive Publication Date: 2016-01-13
JMINDUSTRIES GRP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] The acrylic emulsion wood coatings currently on the market also have the following disadvantages: 1. The coating film is soft and has poor sandability; 2. The coating has poor permeability to the substrate, which makes the adhesion between the coating film and the substrate after film formation Insufficient effort; 3. Acrylic emulsion mainly relies on physical film formation, the water resistance and solvent resistance of the coating film are poor, and the phenomenon of "hot stickiness and cold brittleness" of the coating film is serious; 4. The gloss of the coating film is low and the fullness is poor

Method used

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Embodiment Construction

[0026] A kind of dense nonporous wood coating, it is made up of the raw material of following weight part:

[0027] Magnesium aluminum silicate 10, natural latex 70, acrylic emulsion 560, ammonium trimolybdate 3, mannitol 2, butyl benzyl phthalate 1, sodium pyrophosphate 2, potassium periodate 0.1, sodium acetate 1, chitosan Sugar 7, polyvinyl alcohol 24, nanometer αFe2O30.1, polyglycerol fatty acid ester 1.3, sericin 2, beeswax 5, titanium dioxide 140, polyoxyethylene ether 2, trimethylhydroxyethylethylenediamine 1, alkyl butyl Diacid 0.6.

[0028] A kind of preparation method of described compact non-porous wood coating, comprises the following steps:

[0029] (1) Add sodium pyrophosphate to 20 times of water, stir evenly, add potassium periodate as a buffer;

[0030] (2) Add sodium acetate to 20 times of water, add 10mol / l hydrochloric acid dropwise, adjust the pH to 4, add chitosan, stir evenly, add the above buffer solution dropwise, after the dropwise addition, pass in...

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Abstract

The invention discloses a compact imporous wood coating which is prepared from the following raw materials in parts by weight: 10-14 parts of aluminium-magnesium silicate, 70-100 parts of natural latex, 560-600 parts of an acrylic emulsion, 3-4 parts of triammonium molybdate, 2-3 parts of mannitol, 1-2 parts of butyl benzyl phthalate, 2-3 parts of sodium pyrophosphate, 0.1-0.13 part of potassium periodate, 1-2 parts of sodium acetate, 7-10 parts of chitosan, 24-30 parts of polyvinyl alcohol, 0.1-0.2 part of nano alpha-Fe2O3, 1.3-2 parts of polyglycerol fatty acid ester, 2-3 parts of sericin, 5-7 parts of beewax, 140-160 parts of titanium dioxide, 2-3 parts of polyoxyethylene ether, 1-2 parts of trimethylethoxylethylenediamine and 0.6-1 part of alkyl succinic acid. The coating disclosed by the invention is good in compactness, has no shrinkage cavities on the surface, and is free of deposition, smooth and good in leveling property.

Description

technical field [0001] The invention relates to the technical field of wood coatings, in particular to a dense non-porous wood coating and a preparation method thereof. Background technique [0002] The acrylic emulsion wood coatings currently on the market also have the following disadvantages: 1. The coating film is soft and has poor sandability; 2. The coating has poor permeability to the substrate, which makes the adhesion between the coating film and the substrate after film formation Insufficient effort; 3. Acrylic emulsion mainly relies on physical film formation, the water resistance and solvent resistance of the coating film are poor, and the phenomenon of "hot stickiness and cold brittleness" of the coating film is serious; 4. The gloss of the coating film is low and the fullness is poor . Therefore, in order to improve the above shortcomings, it is particularly important to modify the acrylic emulsion coating. Contents of the invention [0003] The object of t...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D107/02C09D105/08C09D129/04C09D189/00C09D191/06C09D7/12
Inventor 周洪杰周楠王亚敏于洋周煜
Owner JMINDUSTRIES GRP
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