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Zinc-enriched aqueous industrial paint and preparation method thereof

An industrial paint, water-based technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve problems such as adverse environmental effects, and achieve the effects of preventing alkali silicate from gelling, improving water dispersibility, and improving corrosion resistance

Inactive Publication Date: 2019-05-21
湖南康瑞涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because it contains chromic acid, it also has bad effects on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] It includes the following raw materials in parts by weight: 50 parts of zinc paste, including 25 parts of potassium silicate, 2 parts of chelating agent, 2 parts of ion-exchanged water and adhesive, the proportioning of zinc paste and adhesive is 2 parts by weight : 1; Wherein, zinc paste comprises lithium silicate 0.84%, zinc powder 49.4%, deionized water 49.36% and polycarboxylate sodium salt type dispersant 0.4%, wherein, chelating agent chelating agent comprises ethylenediaminetetraacetic acid, ethyl Alkali metal diaminetetraacetic acid, 18-crown-6 complex and nitrotriacetic acid, alkali metal ethylenediaminetetraacetic acid include tetrapotassium ethylenediaminetetraacetic acid.

[0023] A preparation method for zinc-rich water-based industrial paint, which comprises the following steps:

[0024] Step 1. Raw material preparation: Weigh lithium silicate, zinc powder, deionized water, surfactant, alkali silicate additive, chelating agent, ion-exchanged water and bind...

Embodiment 2

[0028] It includes the following raw materials in parts by weight: 60 parts of zinc paste, including 30 parts of potassium silicate, 3 parts of chelating agent, 3 parts of ion-exchanged water and adhesive, the proportion of zinc paste and adhesive is 2 by weight : 1; Wherein, zinc paste comprises lithium silicate 0.84%, zinc powder 49.4%, deionized water 49.36% and polycarboxylate sodium salt type dispersant 0.4%, wherein, chelating agent chelating agent comprises ethylenediaminetetraacetic acid, ethyl Alkali metal diaminetetraacetic acid, 18-crown-6 complex and nitrotriacetic acid, alkali metal ethylenediaminetetraacetic acid include tetrapotassium ethylenediaminetetraacetic acid.

[0029] A preparation method for zinc-rich water-based industrial paint, which comprises the following steps:

[0030] Step 1. Raw material preparation: Weigh lithium silicate, zinc powder, deionized water, surfactant, alkali silicate additive, chelating agent, ion-exchanged water and binder accord...

Embodiment 3

[0034] It includes the following raw materials in parts by weight: 70 parts of zinc paste, including 35 parts of potassium silicate, 4 parts of chelating agent, 5 parts of ion-exchanged water and binder, the proportioning of zinc paste and binder is 2 parts by weight : 1; Wherein, zinc paste comprises lithium silicate 0.84%, zinc powder 49.4%, deionized water 49.36% and polycarboxylate sodium salt type dispersant 0.4%, wherein, chelating agent chelating agent comprises ethylenediaminetetraacetic acid, ethyl Alkali metal diaminetetraacetic acid, 18-crown-6 complex and nitrotriacetic acid, alkali metal ethylenediaminetetraacetic acid include tetrapotassium ethylenediaminetetraacetic acid.

[0035] A preparation method for zinc-rich water-based industrial paint, which comprises the following steps:

[0036] Step 1. Raw material preparation: Weigh lithium silicate, zinc powder, deionized water, surfactant, alkali silicate additive, chelating agent, ion-exchanged water and binder a...

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PUM

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Abstract

The invention discloses a zinc-enriched aqueous industrial paint and a preparation method thereof. The paint comprises the following raw materials in parts by weight: 50-70 parts of zinc slurry, 25-35parts of an alkali silicate additive, 2-4 parts of a chelating agent, 2-5 parts of ion exchange water and an adhesive, wherein the weight ratio of the zinc slurry to the adhesive is 2:1; the zinc slurry comprises 0.84% of lithium silicate, 49.4% of zinc powder, 49.36% of deionized water and 0.4% of a surfactant. The invention aims to provide the zinc-enriched aqueous industrial paint which is lowin price, low in preparation cost and high in stability; according to the preparation method, the ion exchange water is put into an alkali silicate solution, then the alkali silicate solution is hydrolyzed, the polymerization degree of the alkali silicate solution is reduced, the zinc powder is put into the solution later, a dense silica coating is formed on the surface of the zinc powder, and contact of zinc with water is thus avoided. Therefore, the zinc powder has very high stability in the water.

Description

technical field [0001] The invention relates to a zinc-rich water-based industrial paint and a preparation method thereof. Background technique [0002] Coatings for sacrificial corrosion protection of iron with zinc are widely used in zinc-rich coatings. However, most of them contain organic solvents, so there is a problem that they have adverse effects on the environment. On the other hand, organic solvent-free zinc-rich water-based industrial paints have the problems of hydrogen gas generation when zinc is mixed with water or poor rust resistance. Zinc-rich paints containing chromic acid are also widely used as binders. But because it contains chromic acid, it also has adverse effects on the environment. Contents of the invention [0003] The purpose of the present invention is to address the above problems and provide a zinc-rich water-based industrial paint and a preparation method thereof. The salt gels, thereby maintaining the stability of the paint and its coat...

Claims

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Application Information

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IPC IPC(8): C09D5/10C09D7/61C09D7/63
Inventor 刘建学
Owner 湖南康瑞涂料科技有限公司
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