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Preparation method of corrosion inhibitor loading structure with large load capacity

A technology of supporting structure and corrosion inhibitor, which is applied in the field of preparation of supporting structure of large-loaded corrosion inhibitor, can solve the problems of decreased shielding effect, easy loss, swelling, etc., and can solve the negative impact, increase the content, and improve the time of the effect. Effect

Inactive Publication Date: 2016-09-28
ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the organic water-based anti-corrosion coating has strong water absorption and will cause swelling, which will reduce its shielding effect on corrosive media after a certain period of use. Therefore, it needs to be repaired and recoated after a period of use to ensure the normal operation of the ship. Therefore, corrosion inhibitors are needed to help improve the corrosion resistance of coatings, but directly adding corrosion inhibitors to paints or coatings is easy to lose, and a load structure is needed to coat the corrosion inhibitors in order to prevent their loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of the load structure of the large-load corrosion inhibitor:

[0021] (1) Under the stirring condition of 200r / min, add 0.1 mol / L hydrochloric acid to 100 parts by mass of water to adjust the pH value of the solution between 3; then heat the solution to 50°C, add 10 parts by mass of cerium nitrate and mix well, Add 1 part by mass of absolute ethanol and stir for 0.5h;

[0022] (2) Disperse the polystyrene (PS) microsphere emulsion in absolute ethanol to obtain a PS microsphere dispersion with a concentration of 0.2 g / L. Take 50ml of the dispersion, add 0.25g of cetyltrimethylammonium bromide powder, 8ml of deionized water and 12ml of ethanol, and stir evenly at room temperature. Then add 1ml of ammonia to the solution, continue stirring for 0.5 hours, add 0.4ml of ethyl orthosilicate dropwise, react at room temperature for 4 hours and then end the reaction, the reaction solution is repeatedly filtered, washed and dried at room temperature to obtain The powder i...

Embodiment 2

[0028] Preparation of the load structure of the large-load corrosion inhibitor:

[0029] (1) Under stirring conditions of 200r / min, add 0.1 mol / L hydrochloric acid to 100 parts by mass of water to adjust the pH of the solution to 4; then heat the solution to 50°C, add 12 parts by mass of cerium nitrate and mix well, Add 1 part by mass of absolute ethanol and stir for 0.5h;

[0030] (2) Disperse the polystyrene (PS) microsphere emulsion in absolute ethanol to obtain a PS microsphere dispersion with a concentration of 0.2 g / L. Take 50ml of the dispersion, add 0.25g of cetyltrimethylammonium bromide powder, 8ml of deionized water and 12ml of ethanol, and stir evenly at room temperature. Then add 1ml of ammonia to the solution, continue stirring for 0.5 hours, add 0.4ml of ethyl orthosilicate dropwise, react at room temperature for 4 hours and then end the reaction, the reaction solution is repeatedly filtered, washed and dried at room temperature to obtain The powder is put into a h...

Embodiment 3

[0036] Preparation of the load structure of the large-load corrosion inhibitor:

[0037] (1) Under stirring conditions of 200r / min, add 0.1 mol / L hydrochloric acid to 100 parts by mass of water to adjust the pH of the solution to 5; then heat the solution to 50°C, add 15 parts by mass of cerium nitrate and mix well, Add 1 part by mass of absolute ethanol and stir for 0.5h;

[0038] (2) Disperse the polystyrene (PS) microsphere emulsion in absolute ethanol to obtain a PS microsphere dispersion with a concentration of 0.2 g / L. Take 50ml of the dispersion, add 0.25g of cetyltrimethylammonium bromide powder, 8ml of deionized water and 12ml of ethanol, and stir evenly at room temperature. Then add 1ml of ammonia to the solution, continue stirring for 0.5 hours, add 0.4ml of ethyl orthosilicate dropwise, react at room temperature for 4 hours and then end the reaction, the reaction solution is repeatedly filtered, washed and dried at room temperature to obtain The powder is put into a h...

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Abstract

The invention relates to the preparation technology of anti-corrosion additives, and aims at providing a preparation method of a corrosion inhibitor loading structure with a large load capacity. The method comprises the following steps: a polystyrene (PS) microsphere emulsion is dispersed into absolute ethyl alcohol, hexadecyl trimethyl ammonium bromide powder, deionized water, ethyl alcohol, and ammoniacal liquor are added with continuous stirring, tetraethyl orthosilicate is added dropwisely for carrying out a reaction, and pumping filtration, cleaning, drying and roasting are carried out in order to obtain hollow silicon dioxide microspheres; absolute ethyl alcohol and hollow silicon dioxide microspheres are added into an acidic solution of cerium nitrate, heating is carried out with stirring, and centrifugation, washing and drying are carried out in order to obtain a final product. Hollow silicon dioxide microspheres are used for loading a corrosion inhibitor, so that direct contact between the corrosion inhibitor and paint is avoided; a mode for improving the amount of the silicon dioxide microsphere loading structure is used in order to increase addition of the corrosion inhibitor, increase the content of the corrosion inhibitor in a coating, and prolong action time of the corrosion inhibitor. The method can be used for effectively solving bad influences on paint stability due to high addition of the corrosion inhibitor in the prior art.

Description

Technical field [0001] The invention relates to the preparation technology of anti-corrosion additives, in particular to a preparation method of a large-loaded corrosion inhibitor load structure. Background technique [0002] Anticorrosive coatings for ships, especially for ship hulls, have high requirements for the corrosion resistance of the coatings. Anticorrosive coatings such as ordinary organic resins are combined with pretreatment layers and primers. At the same time, anode protective agents such as zinc powder are added. It has better corrosion resistance under the circumstances. However, the organic water-based anticorrosive coating has strong water absorption and will cause swelling, which will reduce its shielding effect on corrosive media after a certain period of use. Therefore, it needs to be repaired and recoated after a period of use to ensure the normal operation of the ship. Therefore, corrosion inhibitors are needed to help improve the corrosion resistance of ...

Claims

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Application Information

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IPC IPC(8): C09D5/08
CPCC09D5/08
Inventor 吴春春杨辉张玲洁张继钱骁
Owner ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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