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Wet-on-wet construction matching paint and preparation method thereof

A wet-on-wet and primer technology, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems that water-based coatings cannot meet the requirements of wet-on-wet construction, and achieve good chemical resistance, oil resistance, etc. The effect of reducing energy consumption and improving production efficiency

Inactive Publication Date: 2019-07-12
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the water-based paint in the prior art cannot meet the requirements of wet-on-wet construction, the present invention provides a matching paint capable of wet-on-wet construction and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] An embodiment of the present invention provides a matching paint that can be applied wet-on-wet, including a primer and a topcoat,

[0064] Described primer comprises A component and B component, and A component comprises the raw material component of following mass percent: water-based epoxy resin 38%, deionized water 11%, first auxiliary solvent 3.5%, wetting and dispersing agent 1.5% %, thickener 1.1%, anti-flash rust agent 2.0%, first defoamer 0.78%, filler 14%, composite zinc phosphate 7%, aluminum tripolyphosphate 9%, titanium dioxide 12% and carbon black 0.12%;

[0065] Component B includes the following raw material components in mass percentage: 47% of water-based epoxy curing agent, 42% of deionized water and 11% of the second co-solvent;

[0066] Wherein, the mass ratio of described A component and B component is 5:1;

[0067] The topcoat includes component C and component D, and component C includes the following raw material components in mass percentage: ...

Embodiment 2

[0082] An embodiment of the present invention provides a matching paint that can be applied wet-on-wet, including a primer and a topcoat,

[0083] Described primer comprises A component and B component, and A component comprises the raw material component of following mass percent: water-based epoxy resin 40%, deionized water 12%, first auxiliary solvent 2.5%, wetting and dispersing agent 1.3% %, thickener 1.4%, anti-flash rust agent 1.8%, first defoamer 0.8%, filler 13%, composite zinc phosphate 6%, aluminum tripolyphosphate 10%, titanium dioxide 11% and carbon black 0.2%;

[0084] Component B includes the following raw material components in mass percentage: 48% of water-based epoxy curing agent, 43% of deionized water and 9% of the second co-solvent;

[0085] Wherein, the mass ratio of described A component and B component is 4:1;

[0086] The topcoat includes component C and component D, and component C includes the following raw material components in mass percentage: 65...

Embodiment 3

[0093] An embodiment of the present invention provides a matching paint that can be applied wet-on-wet, including a primer and a topcoat,

[0094] Described primer comprises A component and B component, and A component comprises the raw material component of following mass percent: water-based epoxy resin 42%, deionized water 11.8%, first auxiliary solvent 3%, wetting and dispersing agent 1.2% %, thickener 1.2%, anti-flash rust agent 1.7%, first defoamer 1.0%, filler 15%, composite zinc phosphate 5%, aluminum tripolyphosphate 8%, titanium dioxide 10% and carbon black 0.1%;

[0095] Component B includes the following raw material components in mass percentage: 53% of water-based epoxy curing agent, 37% of deionized water and 10% of the second co-solvent;

[0096] Wherein, the mass ratio of described A component and B component is 3:1;

[0097] The topcoat includes component C and component D, and component C includes the following raw material components in mass percentage: 70...

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PUM

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Abstract

The invention discloses wet-on-wet construction matching paint and a preparation method thereof. Waterborne epoxy anticorrosive primer and waterborne double-component polyurethane finish paint are combined, a wet-on-wet construction technology can be realized while properties of surface appearance, glossiness, hardness, salt mist property and the like of a paint film are met, so that the production efficiency is greatly improved, energy consumption is reduced, and the requirements for energy saving and emission reduction are met. Construction site tests prove that the waterborne double-component polyurethane finish paint can be sprayed after the waterborne epoxy anticorrosive primer is sprayed and dried for 10 min (the thickness of a dry film is about 30-50 mu m), the finish paint can be baked at the temperature of 80 DEG C for 30 min after being air-dried for 10-15 min, and then, the product can be assembled and packaged offline.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a matching paint capable of wet-on-wet construction and a preparation method thereof. Background technique [0002] With the in-depth development and reform of my country's economy, the automobile manufacturing industry has developed rapidly. Various engineering vehicles (such as excavators, cement tankers, cranes, etc.), freight trucks (such as muck dump trucks, trailers), agricultural vehicles and mechanical vehicles (such as harvesters, tractors, tricycles, seeders, etc.) and various special function vehicles (such as garbage sweepers, sprinklers, etc.) The demand continues to expand. This type of vehicle has a large area, and it cannot achieve self-drying at room temperature after spraying the paint. It must be completely baked after each coat of paint before painting the next paint. The construction process is complicated, which seriously affects the construction efficiency....

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D175/04C08G18/62
CPCC09D163/00C09D5/08C09D7/61C09D175/04C08G18/6216C08K2003/328C08K2003/2241
Inventor 宋利强王洁程璐胡中源
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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