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Aqueous epoxy zinc-rich priming paint and preparation method thereof

A water-based epoxy zinc-rich and primer technology, applied in the field of coatings, can solve the problems of high VOC content and complicated construction, and achieve the effects of low VOC content, excellent sag resistance, and easy operation and construction performance.

Inactive Publication Date: 2018-10-23
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 problems of high VOC content and complex construction of existing zinc-rich coatings, the present invention provides a water-based epoxy zinc-rich primer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] In any embodiment, the preparation method at least includes the following steps:

[0040] (1) take each component according to the proportioning of above-mentioned waterborne epoxy zinc-rich primer;

[0041] (2) the film-forming aid of described epoxy resin, 60-70wt%, wetting and dispersing agent, defoamer, flaky zinc powder, spherical zinc powder, phosphorus iron powder, graphene oxide, fumed silica , Anti-flash rust additives are mixed to obtain component A;

[0042] (3) Mixing the curing agent, the remaining film-forming aids, deionized water, and lithium magnesium silicate to obtain component B.

[0043] Concretely preferably, the process of the mixing treatment described in step (2) is: first epoxy resin is added in the reactor, under the agitation condition of 400-600rpm, add the coalescence aid of 60-70wt%, wetting Dispersant, defoamer, stir at 400-600rpm for 8-12min, then add flaky zinc powder, spherical zinc powder, phosphorus iron powder, graphene oxide, fum...

Embodiment 1

[0047] An embodiment of the present invention provides a water-based epoxy zinc-rich primer. The primer includes the following components in parts by weight: epoxy resin: 10 parts, wetting and dispersing agent: 0.1 part, defoamer: 0.1 part Parts, film-forming aid: 1 part, flaky zinc powder: 40 parts, spherical zinc powder: 4 parts, ferrophosphorus powder: 0 parts, graphene oxide: 0.2 parts, fumed silica: 0.2 parts, anti-flash rust Agent: 0.1 parts, curing agent: 10 parts, lithium magnesium silicate: 0.1 parts, deionized water: 5 parts.

[0048] The preparation method of above-mentioned waterborne epoxy zinc-rich primer comprises the following steps:

[0049] (1) take each component according to the above-mentioned water-based epoxy zinc-rich primer proportioning;

[0050] (2) Epoxy resin is added in the reactor earlier, under the stirring condition of 400-600rpm, add the film-forming aid of 60-70wt%, wetting and dispersing agent, defoamer, stir with the speed of 400-600rpm 8-...

Embodiment 2

[0053] An embodiment of the present invention provides a water-based epoxy zinc-rich primer. The primer includes the following components in parts by weight: epoxy resin: 20 parts, wetting and dispersing agent: 0.3 parts, defoaming agent: 0.3 parts Parts, film-forming aid: 4 parts, flaky zinc powder: 60 parts, spherical zinc powder: 15 parts, ferrophosphorus powder: 15 parts, graphene oxide: 1 part, fumed silica: 1 part, anti-flash rust Agent: 0.2 parts, curing agent: 23 parts, lithium magnesium silicate: 0.5 parts, deionized water: 6 parts.

[0054] The preparation method of the above-mentioned waterborne epoxy zinc-rich primer is as described in Example 1, and will not be repeated.

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Abstract

The invention relates to the technical field of a paint, and concretely discloses an aqueous epoxy zinc-rich priming paint and a preparation method thereof. The priming paint comprises the following raw materials in parts by weight: 10-30 parts of epoxy resin, 0.1-0.5 parts of a wetting dispersant, 0.1-0.5 parts of an antifoaming agent, 1-5 parts of a film-forming auxiliary agent, 40-70 parts of sheet zinc dust, 4-20 parts of spherical zinc dust, 0-25 parts of ferrophosphorous powder, 0.2-2 parts of graphene oxide, 0.2-2 parts of gas-phase silica, 0.1-0.5 parts of a flash rust-prevention agent, 10-30 parts of a curing agent, 0.1-1 part of magnesium lithium silicate, and 5-10 parts of deionized water. The two-component aqueous epoxy zinc-rich priming paint employs a component A and a component B, the construction is simple, the VOC content is low, the hardness is high, adhesive force, impact resistance and sag resistance are excellent, the anti-settling performance is good, the storageperformance of the priming paint is increased, and the anti-salt spray performance is excellent.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based epoxy zinc-rich primer and a preparation method thereof. Background technique [0002] Organic zinc-rich coatings mainly refer to epoxy zinc-rich coatings, with epoxy resin as the main film-forming substance, which has the characteristics of good adhesion, low requirements for substrate treatment, and convenient construction. Because of the above advantages, they currently play an extremely important role in the field of industrial protection. For example, epoxy zinc-rich primers are generally used for container protection; alcohol-soluble inorganic zinc silicate primers are generally used for ship shop primer protection. . However, they all belong to solvent-based coatings, and a large amount of organic solvents are used in the production and construction process, which has a relatively high emission of volatile organic compounds (VOC), and cannot meet the requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/61
CPCC09D163/00C09D5/106C09D7/61C08K13/04C08K7/00C08K3/08C08K7/18C08K3/042C08K3/36C08K3/34
Inventor 赵宁宁董立志胡中源白培培
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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