Water-based woodware anti-bleeding seal primer, and preparation method and application thereof

A sealing primer, water-based technology, applied in the direction of coating, etc., can solve the problems of affecting the coating effect, emulsion breaking, paint film peeling, etc., to increase adhesion and sealing effect, increase cross-linking density, and improve sealing effect Effect

Active Publication Date: 2016-05-25
深圳市雷巴环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wood itself contains a large amount of vegetable oil, polyphenolic compounds (tannic acid), and pigments. The tannic acid and pigments are a kind of chemical substances with strong water solubility. It is tannic acid. When the paint film is not dry, it will be dissolved by the water in the water-based paint, causing the upward migration of tannic acid. Since most of the water-based emulsion is alkaline, tannic acid is acidic, which accelerates the above process. At the same time, the infiltration of tannic acid will cause the emulsion to break, and the result is that the paint film b...

Method used

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  • Water-based woodware anti-bleeding seal primer, and preparation method and application thereof
  • Water-based woodware anti-bleeding seal primer, and preparation method and application thereof
  • Water-based woodware anti-bleeding seal primer, and preparation method and application thereof

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preparation example Construction

[0049] The present invention also provides a kind of preparation method of water-based wood sealing primer, comprising the following steps:

[0050] 1) adding film-forming aids, defoamers and wetting agents to the water-based hydroxyacrylic resin, stirring and dispersing to obtain the first mixture;

[0051] 2) Add grinding aid, tannic acid polymerization inhibitor, deionized water and thickener to the first mixture obtained in the above steps, and continue to stir and disperse to obtain component A;

[0052] 3) After combining component A and component B obtained in the above steps, water-based wood sealing primer is obtained;

[0053] The component B is an aqueous HDI trimer.

[0054] In the preparation method of the present invention, the specific preferred scheme of the raw material, and the preferred numerical value of the added number of parts are consistent with the specific preferred scheme of the components in the aforementioned water-based wood sealer primer, and th...

Embodiment 1

[0070] An anti-bleeding color sealing primer, comprising two components A and B, the mass ratio of component A to component B is 100:5, wherein component A comprises the following components according to the mass fraction:

[0071] Water-based hydroxyacrylic resin (A-450): 70%, dipropylene glycol methyl ether: 3%, dipropylene glycol butyl ether: 2%, BYK028: 0.2%, Tego 270: 0.3%, zinc stearate: 2%, RM -8W: 0.5%, haloxL44: 1%, deionized water: 21%.

[0072] (1) Add dipropylene glycol methyl ether, dipropylene glycol butyl ether, BYK028, and Tego 270 to A-450 in sequence, and disperse for 20 minutes at 2000 rpm;

[0073] (2) Then reduce the rotation speed to 1000 rpm, add zinc stearate, haloxL44, deionized water and thickener in sequence, and disperse for 30 minutes to obtain component A.

[0074] When used, the mass ratio of component A and component B is 100:5, and after uniform mixing, the anti-bleeding color sealing primer is obtained

Embodiment 2

[0076] An anti-bleeding color sealing primer, comprising two components A and B, the mass ratio of component A to component B is 100:5, wherein component A comprises the following components according to the mass fraction:

[0077] Water-based hydroxyacrylic resin (A-450): 80%, dipropylene glycol methyl ether: 4%, dipropylene glycol butyl ether: 2%, BYK028: 0.3%, Corning H140: 0.3%, zinc stearate: 2%, RM -8W: 0.5%, haloxL66: 2%, deionized water: 8.9%.

[0078] (1) Add dipropylene glycol methyl ether, dipropylene glycol butyl ether, BYK028, and Corning H140 to A-450 in sequence, and disperse for 20 minutes at 2000rpm;

[0079] (2) Then reduce the rotational speed to 1000 rpm, add zinc stearate, haloxL66, deionized water and thickener in sequence, and disperse for 30 minutes to obtain component A.

[0080] When used, the mass ratio of component A and component B is 100:5, and after uniform mixing, the anti-bleeding color sealing primer is obtained.

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Abstract

The invention provides a water-based woodware seal primer which comprises a component A and a component B. The component A is composed of the following ingredients in parts by weight: 70-90 parts of water-based hydroxy acrylic resin, 4-6 parts of film forming aid, 0.2-0.5 part of defoaming agent, 0.2-0.5 part of wetting agent, 1-3 parts of sanding aid, 0.5-1 part of thickener, 1-2 parts of tannic acid polymerization inhibitor and the balance of water. The component B is a water-based HDI (hexamethylene diisocyanate) tripolymer. The water-based woodware seal primer provided by the invention is a water-based woodware anti-bleeding seal primer, can reduce the leaching of tannic acid, and has better binding force for the substrate, thereby enhancing the sealing effect. When being especially used for wood substrates with higher tannic acid content, the seal primer can implement favorable seal effect on the tannic acid in the water-based system, thereby avoiding the resulting common application defects.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based wood sealing primer and its preparation method and application, in particular to a water-based wood anti-seepage color sealing primer and its preparation method and application. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous solid film firmly attached to the object to be coated, also known as paint film or coating, usually based on resin, or oil, or emulsion, adding Or do not add pigments, fillers, add corresponding additives, and use organic solvents or water to prepare viscous liquids. There are many types of coatings, which are divided according to the form of the product, mainly divided into: solvent-based coatings, water-based coatings, powder-based coatings, high-solid coatings, metallic coatings, pearlescent coatings and solvent-free coatings; according to their construction ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12
CPCC08K2201/014C08L2205/025C08L2205/03C09D7/63C09D7/65C09D133/00C08L75/04C08K5/098C08K5/06
Inventor 涂志江彭成镜
Owner 深圳市雷巴环保材料有限公司
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