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Cellulose woodenware coating and manufacturing method thereof

A technology of wood coatings and cellulose, applied in natural rubber coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of poor water resistance and solvent resistance, insufficient adhesion, and soft coating films, etc., to achieve Good solvent resistance, improved dispersibility, improved stability

Inactive Publication Date: 2016-09-28
JMINDUSTRIES GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the acrylic emulsion wood coatings 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 sticky and cold brittle" 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 cellulose wood coating, it is made up of the raw material of following weight part:

[0027] Darmar resin 2, cellulose propionate 6, sodium pyrophosphate 2, potassium periodate 0.1, sodium acetate 1, chitosan 7, polyvinyl alcohol 24, nano-αFe2O30.1, polyglycerol fatty acid ester 1.3, sericin 2. Beeswax 5, natural latex 70, linolenic acid 1, maleopimaric anhydride 2, acrylic emulsion 560, titanium dioxide 140, ammonium paratungstate 1, dithiosalicylic acid 2, polylactic acid 1, polytetrahydrofuran ether glycol 3, Hydroxyethylcellulose2.

[0028] A kind of preparation method of described cellulose 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...

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Abstract

The invention discloses a cellulose woodenware coating, which is made from the following raw materials, by weight part, 2-3 of a dammar resin, 6-10 of cellulose proprionate, 2-3 of sodium pyrophosphate, 0.1-0.13 of potassium periodate, 1-2 of sodium acetate, 7-10 of chitosan, 24-30 of polyvinyl alcohol, 0.1-0.2 of nanometer alpha-Fe2O3, 1.3-2 of polyglyceryl fatty acid ester, 2-3 of sericin, 5-7 of beeswax, 70-100 of natural latex, 1-2 of linoleic acid, 2-3 of maleopimaric acid anhydride, 560-600 of an acrylic acid emulsion, 140-160 of titanium dioxide, 1-2 of ammonium paratungstate, 2-3 of dithiosalicylic acid, 1-2 of polylactic acid, 3-4 of polytetramethylene ether glycol and 2-3 of hydroxyethyl cellulose. Through addition of cellulose proprionate and hydroxyethyl cellulose, dispersion of particles in the emulsion is improved, and the stability of a coating film is improved.

Description

technical field [0001] The invention relates to the technical field of wood coatings, in particular to a cellulose 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 sticky and cold brittle" 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 purpose of the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D107/02C09D129/04C09D5/14C09D7/12
CPCC08K2201/011C08L2205/035C09D5/14C09D7/61C09D7/65C09D133/00C08L7/02C08L29/04C08L1/286C08L1/284C08L5/08C08K13/02C08K2003/2272
Inventor 周洪杰周楠王亚敏于洋周煜
Owner JMINDUSTRIES GRP
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