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Alpha-Fe2O3 modified woodenware coating and preparation method thereof

A wood coating, -fe2o3 technology, used in antifouling/underwater coatings, natural rubber coatings, chitin polysaccharide coatings, etc. Insufficient and other problems, to achieve the effect of good surface resistance, good solvent resistance, good bacteriostatic effect

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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Comparison scheme
Effect test

Embodiment Construction

[0024] an α-Fe 2 o 3 Modified wood coating, it is made up of the following raw materials of weight part:

[0025] Tallow diamine dioleate 3, sodium carboxymethylcellulose 1, polyvinylbenzenesulfonic acid 0.7, sodium pyrophosphate 2, sodium acetate 1, chitosan 7, polyvinyl alcohol 24, nano α-Fe 2 o 3 0.1, sericin 2, beeswax 5, natural latex 70, acrylic emulsion 560, titanium dioxide 140, sodium myristate soap 4, tributyl borate 1, dimethylaminopropylamine 0.7, potassium periodate 0.1, polyglycerol fatty acid Esters 1.3.

[0026] A kind of α-Fe 2 o 3 The preparation method of modified wood coating comprises the following steps:

[0027] (1) Add sodium pyrophosphate to 20 times of water, stir evenly, add potassium periodate as a buffer;

[0028] (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...

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Abstract

The invention discloses an alpha-Fe2O3 modified woodenware coating. The coating comprises the following raw materials, by weight part, 3-5 of tallow diamine dioleate, 1-2 of sodium carboxymethylcellulose, 0.7-1 of polyethylene benzenesulfonic acid, 2-3 of sodium pyrophosphate, 1-2 of sodium acetate, 7-10 of chitosan, 24-30 of polyvinyl alcohol, 0.1-0.2 of nanometer alpha-Fe2O3, 2-3 of sericin, 5-7 of beeswax, 70-100 of natural latex, 560-600 of an acrylic acid emulsion, 140-160 of titanium dioxide, 4-6 of sodium myristate, 1-2 of tributyl borate, 0.7-1 of dimethylaminopropylamine, 0.1-0.3 of potassium periodate and 1.3-2 of polyglycerol fatty acid esters. Hydroxyl groups on the surface of nanometer alpha-Fe2O3 and hydroxyl groups on polyvinyl alcohol molecules are subjected to a dehydration reaction to form Si-O-C covalent bonds. Extra force is needed to break the covalent bonds, thereby improving the surface resistance of a coating film.

Description

technical field [0001] The invention relates to the technical field of wood coatings, in particular to an α-Fe 2 o 3 Modified wood coating and 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 object of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D107/02C09D105/08C09D129/04C09D189/00C09D5/02C09D5/14C09D7/12C08B37/08
CPCC08B37/003C08K2201/011C08L2205/035C08L2312/00C09D5/024C09D5/14C09D133/00C08L7/02C08L5/08C08L29/04C08L89/00C08K13/02C08K2003/2272C08K2003/2241C08K5/55C08K5/17
Inventor 周洪杰周楠王亚敏于洋周煜
Owner JMINDUSTRIES GRP
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