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Water-based alkyd antirust paint as well as preparation method and application thereof

A technology of water-based alkyd and anti-rust paint, which is applied in the direction of anti-corrosion coatings, coatings, polyester coatings, etc. It can solve the problems of poor water resistance, inactivation of driers, and lack of quick-drying, so as to achieve the ability of anti-rust , the effect of shortening the affinity

Pending Publication Date: 2022-03-25
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paint film has good hardness, flexibility and impact resistance, but the diluent of water-based alkyd paint is water, and the ester bond of the main chain is easily hydrolyzed and broken, which makes the initial water resistance of the coating poor
Moreover, hydrolysis will lead to deactivation of the drier, and the paint film will be difficult to dry, which will affect the water resistance and adhesion, and the overall does not have quick drying

Method used

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  • Water-based alkyd antirust paint as well as preparation method and application thereof
  • Water-based alkyd antirust paint as well as preparation method and application thereof
  • Water-based alkyd antirust paint as well as preparation method and application thereof

Examples

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preparation example Construction

[0059] The present invention also provides the preparation method of the water-based alkyd antirust paint described in the above technical scheme, comprising the following steps:

[0060] Disperse the defoamer, dispersant, anti-rust pigment and filler, anti-sedimentation agent and water to obtain the pigment and filler concentrate;

[0061] Mix and emulsify the alkyd resin, acrylic emulsion, water, pH regulator and drier to obtain a mixed emulsion;

[0062] Mix the mixed emulsion, concentrated slurry of pigments and fillers, antirust agent, antifreeze agent, leveling agent, adhesion promoter, antiseptic and bactericide, rheological aid and film-forming aid to obtain the water-based alkyd antirust agent paint.

[0063] The invention disperses defoaming agent, dispersant, anti-rust pigment and filler, anti-sedimentation agent and water to obtain concentrated slurry of pigment and filler.

[0064] In the present invention, the dispersion preferably includes low-speed stirring a...

Embodiment 1

[0076] A water-based alkyd anti-rust paint and a preparation method thereof, comprising the following steps: (1) Preparation of concentrated slurry of pigments and fillers: adding 0.5 wt % defoaming agent polyether modified polysiloxanes in 4.0 wt % water at 200 r / min Stir and disperse at 800r / min after defoamer, 0.5wt% dispersant acrylic copolymer ammonium salt, 8.0wt% titanium dioxide, 11.0wt% heavy calcium powder, 5.0wt% zinc phosphate, 7.0wt% bentonite; (2) mix Preparation of emulsion: Add 17.0wt% acrylic acid emulsion, 4.5wt% water, 6.0wt% 2-amino-2-methyl-1-propanol and 1.0wt% zirconium composite drier to 15.0wt% alkyd resin Disperse at a medium speed to prepare a mixed emulsion; (3) Letting down: add the mixed emulsion to the concentrated slurry of pigments and fillers, then add 0.1wt% of anti-flash rust agent, 0.3wt% of antifreeze ethylene glycol, and 8.0wt% of leveling agent propylene glycol wt%, KH5700.1wt%, preservative and bactericide benzisothiazolinones 3.0wt%, r...

Embodiment 2

[0078] An environment-friendly and quick-drying water-based alkyd antirust paint and a preparation method thereof, comprising the following steps: (1) Preparation of concentrated slurry of pigments and fillers: adding 1.0 wt % defoamer polyether modified polysilicon in 15.7 wt % water at 300 r / min Oxylkane defoamer, 2.0wt% dispersant acrylic acid copolymer ammonium salt, 8.0wt% titanium dioxide, 10.0wt% barium sulfate, 3.0wt% mica flakes, 10.0wt% bentonite and 1000r / min stirring dispersion; (2 ) Preparation of mixed emulsion: Add 10.0wt% acrylic acid emulsion, 8.0wt% water, 1.0wt% ammonia water and 2.0wt% zirconium composite drier to 15.0wt% alkyd resin and disperse at a medium speed to prepare a mixed emulsion; ( 3) Paint letdown: Add the mixed emulsion to the concentrated slurry of pigments and fillers, then add 0.2wt% anti-flash rust agent, 0.1wt% ethylene glycol antifreeze, 0.1wt% propylene glycol leveling agent, 0.8wt% KH5700, antiseptic and sterilization Agent benzisothi...

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Abstract

The invention provides water-based alkyd antirust paint as well as a preparation method and application thereof, and belongs to the field of paint. The water-based antirust paint is prepared from the following components in percentage by weight: 0.1 to 1.0 percent of defoaming agent, 0.5 to 10.0 percent of dispersing agent, 20.0 to 60.0 percent of antirust pigment and filler, 0.5 to 20.0 percent of anti-settling agent, 10.0 to 30.0 percent of alkyd resin, 10.0 to 30.0 percent of acrylic emulsion, 0.5 to 10.0 percent of pH regulator, 1 to 10.0 percent of drier, 0.1 to 0.5 percent of antirust agent, 0.1 to 5.0 percent of anti-freezing agent, 0.1 to 10.0 percent of flatting agent, 0.1 to 0.5 percent of adhesion promoter, 0.1 to 5.0 percent of anticorrosive bactericide, 0.1 to 5.0 percent of rheological additive, 0.1 to 10.0 percent of coalescing agent and the balance of water. The alkyd antirust paint disclosed by the invention is good in water resistance and quick to dry.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based alkyd antirust paint and its preparation method and application. Background technique [0002] With the development of industry, water-based alkyd resin paint has gradually replaced solvent-based alkyd resin paint as a common light anti-corrosion coating. It has high production and construction safety and no danger of explosion and fire. The paint film has good hardness, flexibility and impact resistance, but the diluent of water-based alkyd paint is water, and the ester bond of the main chain is easily hydrolyzed and broken, which makes the initial water resistance of the coating poor. Moreover, hydrolysis will lead to the inactivation of the drier, making it difficult to dry the paint film, which will affect the water resistance and adhesion, and the overall lack of quick drying. Contents of the invention [0003] In view of this, the object of the present inv...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D133/00C09D7/20C09D5/08C09D7/47C09D7/63C09D7/61C09D7/80
CPCC09D167/08C09D133/00C09D7/20C09D5/08C09D7/47C09D7/63C09D7/61C09D7/80C08L33/00C08K5/18C08K5/053C08K3/28C08L67/08C08K3/22
Inventor 周少锋闫瑾王飞飞赵贵哲刘亚青章桥新
Owner ZHONGBEI UNIV
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