Water-based automotive paint, and preparation method and application method thereof

A water-based, baking paint technology, applied in polyester coatings, coatings, etc., can solve the problems of insufficient gloss of bright solid-color paint, high cost of water-based paint, and high baking temperature, and achieve simple anti-virus health measures and simple fire safety measures. , good flexibility

Active Publication Date: 2014-03-19
肇庆千江高新材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, water-based baking varnishes with comparable performance to solvent-based baking varnishes have the following problems: 1. The baking temperature is too high, at least above 160°C, which wastes energy; 2. Due to the relatively late development of domestic water-based resins, they mainly rely on imports. The cost is relatively high; 3. The luster of the bright solid color paint is not high enough, and it needs to be covered to meet the requirements; 4. When the general water-based baking paint is diluted with water, the gloss is unstable and the gloss will often decrease a lot

Method used

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  • Water-based automotive paint, and preparation method and application method thereof
  • Water-based automotive paint, and preparation method and application method thereof
  • Water-based automotive paint, and preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The preparation method of water-based automotive paint is as follows:

[0049] (1) Mix 100kg of water-based castor oil modified alkyd resin, 400kg of water-based acrylic resin, 2kg of modified polysiloxane emulsion of model W810, and 5kg of high molecular weight block containing affinity pigment groups of model W719 The copolymer, 1kg of W416 low molecular weight unsaturated polycarboxylic acid polymer and 20kg of deionized water were sequentially added into the stirring tank, and stirred for 10 minutes at a speed of 400r / min.

[0050] (2) Add 1kg of AMP-95 2-amino-2-methyl-1-propanol, adjust the pH to 8, and stir for 10 minutes at 800r / min.

[0051] (3) Add 337kg of water-based red paste, 10kg of fumed silica anti-sedimentation agent AS20, 30kg of propylene glycol methyl ether, 40kg of amino resin A, 10kg of amino resin B, and 1kg of heterocyclic ring RS01 Compound, 10kg of AR108 phosphoric ester compound with polyester as the main chain, 2kg of PU40 polyurethane thic...

Embodiment 2

[0056] The preparation method of water-based automotive paint is as follows:

[0057] (1) Mix 200kg of water-based castor oil modified alkyd resin, 200kg of water-based acrylic resin, 8kg of modified polysiloxane emulsion of model W810, and 8kg of high molecular weight block containing affinity pigment groups of model W760 The copolymer, 3kg of low molecular weight unsaturated polycarboxylic acid polymer W416 and 26kg of deionized water were sequentially added into the stirring tank, and stirred for 15 minutes at a speed of 800r / min.

[0058] (2) Add 5kg of AMP-95 2-amino-2-methyl-1-propanol, adjust the pH to 9, and stir for 15 minutes at 400r / min.

[0059] (3) Add 300kg of water-based blue paste, 30kg of fumed silica anti-sedimentation agent AS20, 60kg of isopropanol, 60kg of amino resin A, 20kg of amino resin B, 2kg of RS01 miscellaneous Cyclic compound, 20kg AR108 phosphate ester compound with polyester as the main chain, 5kg polyurethane thickener PU40, stir and disperse ...

Embodiment 3

[0064] The preparation method of water-based automotive paint is as follows:

[0065] (1) Mix 150kg of water-based castor oil modified alkyd resin, 352kg of water-based acrylic resin, 5kg of modified polysiloxane emulsion of model W810, and 6kg of high molecular weight block containing affinity pigment groups of model W760 The copolymer, 2kg of low molecular weight unsaturated polycarboxylic acid polymer W416 and 50kg of deionized water were sequentially added into the stirring tank, and stirred for 20 minutes at a speed of 600r / min.

[0066] (2) Add 3kg of AMP-95 2-amino-2-methyl-1-propanol, adjust the pH to 8, and stir for 12 minutes at 600r / min.

[0067] (3) Add 200kg of water-based white paste, 20kg of fumed silica anti-settling agent of AS20 type, 45kg of dipropylene glycol butyl ether, 80kg of amino resin A, 15kg of amino resin B, 2kg of RS01 miscellaneous Cyclic compound, 15kg of AR108 phosphoric ester compound with polyester as the main chain, 3kg of PU40 polyurethane...

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Abstract

The invention discloses a water-based automotive paint, and a preparation method and an application method thereof. The water-based automotive paint is prepared from water-based castor oil-modified alkyd resin, water-based acrylic resin, water-based color paste, amino resin A, amino resin B, a coalescing agent, deionized water, a dispersing agent, a wetting agent, a pH regulator, a defoamer, anti-settling pulp, a corrosion remover, a thickener, an adhesion promoter and a flatting agent. The preparation method refers to orderly adding the raw materials to evenly agitate. The application method comprises the following steps: evenly mixing and stirring the water-based automotive paint and water according to the ratio of 1:(0.1-0.3), and then spraying, placing, baking and solidifying, so as to obtain a stoving varnish coating. A solvent stoving varnish is replaced by using the water-based automotive paint disclosed by the invention; a complete coating, of which the adhesive force is 0 level, and the flexibility is 1mm, which is excellent in weather fastness, high in fullness, and vivid in color and luster, and has excellent protectiveness and decorative property can be formed on the metal surface; the water-based automotive paint is safe in production procedure, environment-friendly, simple, and environment-friendly and convenient in construction.

Description

technical field [0001] The invention relates to a water-based automobile baking varnish and its preparation method and use method, especially the preparation method and use method of the water-based baking varnish on various metal surfaces such as trucks, transport vehicles, agricultural vehicles, truck boxes, mechanical equipment, hardware components and the like. Background technique [0002] At present, the coatings used for coating metal surfaces such as trucks, transport vehicles, agricultural vehicles, truck boxes, mechanical equipment, and hardware components are mainly solvent-based coatings. Solvent-based coatings not only cause serious pollution to the environment, but also are unsafe to produce and do some harm to the health of employees. Therefore, the coating of the above workpieces must be water-based. [0003] At present, water-based baking varnishes with comparable performance to solvent-based baking varnishes have the following problems: 1. The baking tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/08C09D161/20C09D7/12
Inventor 李会宁陈仕箐姚芳谢树谋杨童宗
Owner 肇庆千江高新材料科技股份公司
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