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Anti-stripping wood coating and preparation method therefor

A wood coating and anti-stripping technology, applied in the direction of natural rubber coatings, coatings, etc., can solve problems such as insufficient adhesion, poor sanding, poor water resistance and solvent resistance of the coating film, and achieve high anti-stripping strength and good surface toughness , Strong scratch resistance effect

Inactive Publication Date: 2016-01-13
JMINDUSTRIES GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 anti-stripping wood coating, it is made up of the raw material of following weight part:

[0027] tert-butyldiphenol 3, sodium pyrophosphate 2, potassium periodate 0.1, sodium acetate 1, chitosan 7, polyvinyl alcohol 24, nano-αFe2O3 0.1, polyglycerol fatty acid ester 1.3, sericin 2, beeswax 5. Natural latex 70, acrylic emulsion 560, titanium dioxide 140, trimellitate 0.1, trisodium nitrilotriacetate 3, creosote 0.6, chlorinated paraffin 2, alkylated diphenylamine 0.3.

[0028] A kind of preparation method of described anti-stripping 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 argon gas, avoid light React for 46 hours, add 2% ethylene g...

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Abstract

The invention discloses am anti-stripping wood coating which is prepared from the raw materials in parts by weight: 3-4 parts of tertiary butyl p-diphenol, 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, 70-100 parts of natural latex, 560-600 parts of an acrylic emulsion, 140-160 parts of titanium dioxide, 0.1-0.2 part of trimellitate, 3-4 parts of nitrilotriacetic acid trisodium salt, 0.6-1 part of wood creosote, 2-3 parts of chlorinated paraffin and 0.3-1 part of alkylated diphenylamine. The coating disclosed by the invention is high in cohesiveness with a wood apparatus, and is high in anti-stripping strength, good in surface flexibility, high in scratch resistance and high in protectiveness to a substrate.

Description

technical field [0001] The invention relates to the technical field of wood coatings, in particular to an anti-stripping 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 th...

Claims

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Application Information

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