Low-VOC (Volatile Organic Compounds) and low-odor waterborne wood coating and preparation method thereof

A wood coating and low-odor technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problem of high VOC, achieve the effect of improving crosslinking degree, improving toughness and adhesion, and good impact resistance

Inactive Publication Date: 2018-03-09
GUANGDONG VALSPAR CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But polyurethane wood coatings have higher VOC

Method used

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  • Low-VOC (Volatile Organic Compounds) and low-odor waterborne wood coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A low-VOC and low-odor water-based wood coating, consisting of the following parts by weight: 70 parts by weight of polytetrahydrofuran diol, 70 parts by weight of lysine diisocyanate, 90 parts by weight of acrylic resin (molecular weight: 100000, solid content: 60%), 6 parts by weight of triethylbenzyl ammonium chloride, 5 parts by weight of graphene oxide, 8 parts by weight of starch, 10 parts by weight of castor oil, 5 parts by weight of polyoxyethylene sorbitan monooleate, polydimethylsiloxane 3 parts by weight of oxane, 4 parts by weight of carboxymethyl cellulose, 3 parts by weight of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 2 parts by weight of n-octylisothiazolinone .

[0027] The preparation method of described low-VOC low-odor water-based wood coating, comprises the following steps:

[0028] 1. Mix graphene oxide, dimethylformamide, n-hexane and dicyclohexyl carboximide, ultrasonically treat for 15 minutes, then react at 120°C for 50 hours, add absolu...

Embodiment 2

[0031] A low-VOC and low-odor water-based wood coating, comprising the following parts by weight: 75 parts by weight of tetrahydrofuran-propylene oxide copolymerized glycol, 75 parts by weight of toluene diisocyanate, 80 parts by weight of acrylic resin (molecular weight 90000, solid content is 65%) , 6 parts by weight of triethylbenzyl ammonium bromide, 3 parts by weight of graphene oxide, 10 parts by weight of starch, 8 parts by weight of castor oil, 8 parts by weight of polyoxyethylene sorbitan monooleate, HR polyether disinfectant 2 parts by weight of foaming agent, 5 parts by weight of carboxymethyl cellulose, 3 parts by weight of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and 1 part by weight of aryl urea derivative.

[0032] The preparation method of described low-VOC low-odor water-based wood coating, comprises the following steps:

[0033] 1. Mix graphene oxide, dimethylformamide, n-hexane and dicyclohexylcarboimide, ultrasonically treat it for 15 minutes, then ...

Embodiment 3

[0036] A low-VOC and low-odor water-based wood coating, consisting of the following parts by weight: 60 parts by weight of tetrahydrofuran-propylene oxide copolymerized glycol, 75 parts by weight of isophorone diisocyanate, 95 parts by weight of acrylic resin (molecular weight 80000, solid content of 55%), 5 parts by weight of triethylbenzyl ammonium chloride, 8 parts by weight of graphene oxide, 5 parts by weight of starch, 12 parts by weight of castor oil, 3 parts by weight of polyoxyethylene sorbitan monooleate, 3 parts by weight of glycol siloxane, 3 parts by weight of hydroxyethyl cellulose, 4 parts by weight of tripropylene glycol n-butyl ether, and 3 parts by weight of imidazole derivatives.

[0037] The preparation method of described low-VOC low-odor water-based wood coating, comprises the following steps:

[0038] 1. Mix graphene oxide, dimethylformamide, n-hexane and dicyclohexyl carboximide, ultrasonically treat for 15 minutes, then react at 150°C for 40 hours, add...

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Abstract

The invention relates to the technical field of waterborne wood coatings and in particular relates to a low-VOC (Volatile Organic Compounds) and low-odor waterborne wood coating and a preparation method thereof. The low-VOC and low-odor waterborne wood coating is prepared from a raw material composition, wherein the raw material composition comprises the following components in parts by weight: 50to 80 parts of polyether glycol, 50 to 80 parts of diisocyanate, 60 to 100 parts of acrylic resin, 3 to 8 parts of a catalyst, 2 to 10 parts of graphene oxide, 3 to 12 parts of starch, 5 to 15 partsof castor oil, 2 to 9 parts of an emulsifier, 1 to 5 parts of a de-foaming agent, 2 to 8 parts of a thickener, 1 to 5 parts of a film-forming auxiliary agent and 1 to 3 parts of a preservative. The waterborne wood coating provided by the invention does not contain volatile organic compounds and has the characteristics of safety, environmental friendliness, and health.

Description

technical field [0001] The invention relates to the technical field of water-based wood coatings, in particular to a low-VOC and low-odor water-based wood coating and a preparation method thereof. Background technique [0002] Wood coatings refer to coatings used on equipment made of solid wood boards, wood grain panels, glue boards, chipboards, fiberboards, etc., including paints for furniture, floors, stationery, musical instruments, and building decoration materials. Roughly divided into two categories, one is used in furniture factories, and the other is used in interior decoration. [0003] At present, the main varieties of wood coatings (including furniture and interior decoration coatings) are nitro lacquer (NC), polyurethane coating (PU), unsaturated polyester coating (PE), amino alkyd coating (AC, referred to as acid curing coating). ), UV-curable coatings (UV) and water-based coatings, etc. During the production and use of solvent-based wood coatings, a large amo...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D7/62C09D7/63C08G18/48C08G18/78
CPCC09D175/08C08G18/4854C08G18/78C08L2205/035C08L2312/00C08L33/00C08L3/02C08L91/00C08L71/02C08L83/04C08L1/286C08K9/04C08K3/04C08K5/47C08K5/103
Inventor 黄宏亭高平黄远明张海军
Owner GUANGDONG VALSPAR CHEM IND
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