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 s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example one:

[0028] In this embodiment, the high-performance water-based inorganic zinc-rich coating includes the following components:

[0029] Potassium silicate solution 10%

[0030] Water 20%

[0031] Aluminum modified silica sol 34.5%

[0032] Trimethylbenzylammonium hydroxide catalyst 0.5%

[0033] Lauryl glycol amide 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 the above-mentioned water-based inorganic zinc-rich coating includes the following steps:

[0039] ⑴ Take 100g of 3% potassium silicate solution and pour it into the container, add 200g of water, stir, and heat to 50℃;

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

[0041] ⑶Slowly add 345g of aluminum modified silica sol with a molar content of 0.5%, and stir and reflux for 4h;

[0042] ⑷Then lower the temperature of the syste...

Example Embodiment

[0044] Embodiment two:

[0045] In this embodiment, the high-performance water-based inorganic zinc-rich coating includes the following components:

[0046] Potassium silicate solution 20%

[0047] Water 15%

[0048] Aluminum modified silica sol 30%

[0049] Trimethylbenzylammonium hydroxide catalyst 2%

[0050] Lauryl glycol amide 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 the above-mentioned water-based inorganic zinc-rich coating includes the following steps:

[0056] ⑴ Take 1000g of 4% potassium silicate solution and pour it into the container, add 750g of water, stir, and heat to 70℃;

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

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

[0059] ⑷Then lower the temperature of th...

Example Embodiment

[0061] Embodiment three:

[0062] In this embodiment, the high-performance water-based inorganic zinc-rich coating includes the following components:

[0063] Potassium silicate solution 10%

[0064] Water 15%

[0065] Aluminum modified silica sol 40%;

[0066] Trimethylbenzylammonium hydroxide catalyst 3%

[0067] Lauryl glycol amide 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 the above-mentioned water-based inorganic zinc-rich coating includes the following steps:

[0073] ⑴ Take 5000g of the 5% potassium silicate solution and pour it into the container, add 7500g of water, stir, and heat to 60℃;

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

[0075] (3) Then slowly add 20,000 g of aluminum modified silica sol with a molar content of 2%, and stir and reflux for 3 hours;

[0076] ⑷Then lowe...

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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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