Water-resistant inorganic zinc-rich coating and preparation technology thereof

An inorganic zinc-rich coating and water resistance technology, applied in anti-corrosion coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of slow curing speed, poor water resistance, and inability to form films in time, and improve early water resistance. , the effect of uniform particle size distribution

Inactive Publication Date: 2018-03-27
李玉秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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. It is provided that during the preparation of the coating, potassium zirconium carbonate hardener is added , CO is released during the film formation process 2 , promote the cross-linking reaction of carbonate, improve the early water resistance of the paint film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0029] Potassium silicate solution 10%

[0030] water 20%

[0031] Aluminum modified silica sol 34.5%

[0032] Trimethylbenzyl ammonium hydroxide catalyst 0.5%

[0033] Lauryl Glycolamide 5%

[0034] Silane coupling agent 5%

[0035] Silicone acrylic emulsion 5%

[0036] Low lead zinc powder 19%

[0037] Potassium zirconium carbonate hardener 1%.

[0038] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0039] (1) Take 100g of potassium silicate solution with a percentage concentration of 3% and pour it into a container, add 200g of water and stir, and heat up to 50°C;

[0040] (2) Then add 5g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 4h;

[0041] (3) Slowly add 345 g of aluminum-modified silica sol with a molar content of 0.5% dropwise, and stir and reflux for ...

Embodiment 2

[0045] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0046] Potassium silicate solution 20%

[0047] water 15%

[0048] Aluminum modified silica sol 30%

[0049] Trimethylbenzyl ammonium hydroxide catalyst 2%

[0050] Lauryl Glycolamide 10%

[0051] Silane coupling agent 8%

[0052] Silicone acrylic emulsion 5%

[0053] Low lead zinc powder 9%

[0054] Potassium zirconium carbonate hardener 1%.

[0055] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0056] (1) Take 1000g of potassium silicate solution with a percentage concentration of 4% and pour it into a container, add 750g of water to stir, and heat up to 70°C;

[0057] (2) Finally, add 100g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 3h;

[0058] (3) Slowly add 1500 g of aluminum-modified silica sol with a molar content of 1%, stirring and refluxing for 3 hou...

Embodiment 3

[0062] In the present embodiment, the high-performance water-based inorganic zinc-rich paint comprises the following components:

[0063] Potassium silicate solution 10%

[0064] water 15%

[0065] Aluminum modified silica sol 40%;

[0066] Trimethylbenzyl ammonium hydroxide catalyst 3%

[0067] Lauryl Glycolamide 5%

[0068] Silane coupling agent 7%

[0069] Silicone acrylic emulsion 10%

[0070] Low lead zinc powder 9.4%

[0071] Potassium zirconium carbonate hardener 0.6%.

[0072] The preparation method of above-mentioned waterborne inorganic zinc-rich paint comprises the steps:

[0073](1) Take 5000g of potassium silicate solution with a percentage concentration of 5% and pour it into a container, add 7500g of water to stir, and heat up to 60°C;

[0074] (2) Then add 1500g of trimethylbenzyl ammonium hydroxide catalyst, stir and reflux for 3h;

[0075] (3) Slowly add 20,000 g of aluminum-modified silica sol with a molar content of 2% dropwise, and stir and reflux...

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PUM

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Abstract

The invention relates to a water-resistant inorganic zinc-rich coating and a preparation technology thereof. The coating is prepared from the following raw material components: a potassium silicate solution, aluminum modified silica sol, a trimethyl benzyl ammonium hydroxide catalyst, dodecyl glycol amide, a silane coupling agent, silicon-acrylic emulsion, low lead zinc powder and a potassium zirconium carbonate hardener; the coating is prepared by the processes of mixing, heating, stirring, and the like. In a preparation process of the coating, the early water resistance of a paint film is improved by adding the potassium zirconium carbonate hardener.

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] As the economy becomes more and more developed, steel structures are used more and more in people's daily life, and steel structures in bridges and houses can be seen everywhere. But what comes with it is the protection of steel structures. The economic losses caused by steel corrosion in the world account for about 2%-4% of the GDP of various countries every year, and more than 100 million tons of metals are scrapped due to corrosion. Steel corrosion will significantly reduce the mechanical properties of steel metal materials such as strength, plasticity, and toughness, destroy the geometry of metal components, increase wear between parts, deteriorate electrical and optical physical properties, shorten the service life of equipment, and even c...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D1/04C09D5/10C09D7/61
CPCC09D1/00C09D1/04C09D5/106
Inventor 李玉秀
Owner 李玉秀
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