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Water-resistant aqueous inorganic zinc-enriched coating with added lithium carbonate hardening agent

A technology of inorganic zinc-rich coatings and lithium carbonate, applied in alkali metal silicate coatings, anti-corrosion coatings, etc., can solve the problems of not being able to form a film in time, poor water resistance, and slow curing speed

Inactive Publication Date: 2018-07-17
李玉秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is that the curing speed of the silicate water-based inorganic zinc-rich coating liquid material component is slow, and the film cannot be formed in time, resulting in the problem of poor water resistance in the early stage of the coating. By adding a lithium carbonate hardener during the preparation of the coating, Improve early water resistance of paint film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0026] Potassium silicate solution 10%

[0027] water 18%

[0028] Aluminum modified silica sol 36.5%

[0029] Trimethylbenzyl ammonium hydroxide catalyst 0.5%

[0030] Lauryl Glycolamide 5%

[0031] γ-aminopropyltrimethoxysilane coupling agent 5%

[0032] Silicone acrylic emulsion 5%

[0033] Low lead zinc powder 19%

[0034] Lithium carbonate hardener 1%.

[0035] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0036] (1) Take 100g of potassium silicate solution with a percentage concentration of 3% and pour it into a container, add 180g of water and stir, and heat up to 50°C;

[0037] (2) Then add 5g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 4h;

[0038] (3) Slowly add 365 g of aluminum-modified silica sol with a molar content of 0.5% dropwise, and stir and ...

Embodiment 2

[0042] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0043] Potassium silicate solution 20 %

[0044] Water 14.2%

[0045] Aluminum modified silica sol 30%

[0046] Trimethylbenzyl ammonium hydroxide catalyst 2%

[0047] Lauryl Glycolamide 10%

[0048] γ-Aminopropyltrimethoxysilane coupling agent 8%

[0049] Silicone acrylic emulsion 5%

[0050] Low lead zinc powder 10%

[0051] Lithium carbonate hardener 0.8%.

[0052] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0053] (1) Take 1000g of potassium silicate solution with a percentage concentration of 4% and pour it into a container, add 710g of water to stir, and heat up to 70°C;

[0054] (2) Finally, add 100g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 3h;

[0055] (3) Slowly add 1500 g of aluminum-modified silica sol with a molar content of 2%, stirring and re...

Embodiment 3

[0059] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0060] Potassium silicate solution 10%

[0061] Water 14.5%

[0062] Aluminum modified silica sol 30%;

[0063] Trimethylbenzyl ammonium hydroxide catalyst 3%

[0064] Lauryl Glycolamide 5%

[0065] γ-aminopropyltrimethoxysilane coupling agent 7%

[0066] Silicone acrylic emulsion 10%

[0067] Low lead zinc powder 20%

[0068] Lithium carbonate hardener 0.5%.

[0069] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0070] ⑴ Take 5000g of potassium silicate solution with a percentage concentration of 5% and pour it into a container, add 7250g of water to stir, and heat up to 60°C;

[0071] (2) Then add 1500g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 3h;

[0072] (3) Slowly add 15000 g of aluminum-modified silica sol with a molar content of 3% dropwise, and stir ...

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Abstract

The invention relates to a water-resistant aqueous inorganic zinc-enriched coating with an added lithium carbonate hardening agent, and a preparation process of the coating. The water-resistant aqueous inorganic zinc-enriched coating comprises the following components: a potassium silicate solution, a silicone acrylic emulsion, aluminum modified silica sol, dodecyl diol amide, a ilicone acrylic emulsion, a trimethyl benzyl ammonium hydroxide catalyst, a gamma-aminopropyl trimethoxy silane coupling agent, low-lead zinc powder and a zirconium carbonate potassium hardening agent. The aqueous inorganic zinc-enriched coating is prepared from the components through processes such as mixing and stirring, heating and the like. When the coating is prepared, the zirconium carbonate potassium hardening agent is added, and thus the early-stage water resistance of a coating membrane can be improved. The coating is simple in process and relatively good in application prospect.

Description

technical field [0001] The invention relates to a coating, in particular to a water-based inorganic zinc-rich coating and a preparation method thereof, belonging to the field of coating chemical industry. Background technique [0002] The problem of steel protection is a problem that people have been studying. People use various methods to delay the corrosion rate of steel, such as improving the base material, adding metal coatings, and adding corrosion inhibitors. In the environment such as seawater or high temperature / humidity environment, some other rusts will be formed on the surface coated with metal, resulting in a significantly deteriorated appearance of the substrate surface or a reduction in antirust ability, while a layer of anti-corrosion coating is applied on the metal surface, It can play a better anti-corrosion effect. [0003] Zinc-rich anti-corrosion coatings are widely used. Zinc-rich anti-corrosion coatings can not only isolate air, but also form primary b...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D5/10C09D7/61C09D7/62C09D7/65C09D7/63
Inventor 李玉秀
Owner 李玉秀
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