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Preparation Method of Low-Cost Corrosion Inhibitor-Loaded Structure

A technology of loading structure and corrosion inhibitor, which is applied in the field of preparation of low-cost corrosion inhibitor loading structure, can solve the problems of complex preparation process, low production efficiency, and high process requirements, so as to avoid the preparation process, reduce the cost of raw materials, and avoid direct The effect of contact

Inactive Publication Date: 2019-01-29
ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, porous silica microspheres or porous titanium dioxide are usually used as porous supporting structures. The preparation process of these materials is relatively complicated, requiring multiple filtration and drying, high process requirements, and low production efficiency. Therefore, the cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Under the stirring condition of 200r / min, in 100 parts by mass of water, add 0.1 mol / liter of hydrochloric acid 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, Then add 1 mass part of absolute ethanol and stir for 0.5 hours;

[0023] (2) Add 10 parts by mass of analytically pure diatomaceous earth to the solution in step (1) under 500r / min stirring condition, and mix and stir for 3 hours;

[0024] (3) Centrifuge the mixture obtained in step (2), wash it with ethanol for 4 times, dry it in an oven at 80°C, take it out and grind it through a 200-mesh sieve to obtain a diatomite-loaded corrosion inhibitor structure.

[0025] How to use low-cost corrosion inhibitor-loaded structures:

[0026] Add 10 parts by mass of the diatomite-loaded corrosion inhibitor structure to 100 parts by mass of the water-based paint, and mix and stir for 3 hours.

Embodiment 2

[0028] (1) Under the stirring condition of 200r / min, in 100 parts by mass of water, add 0.1 mol / liter of hydrochloric acid to adjust the pH value of the solution between 4; then heat the solution to 50°C, add 12 parts by mass of cerium nitrate and mix evenly, Then add 1 mass part of absolute ethanol and stir for 0.5 hours;

[0029] (2) Add 10 parts by mass of analytically pure diatomaceous earth to the solution in step (1) under 500r / min stirring condition, and mix and stir for 3 hours;

[0030] (3) Centrifuge the mixture obtained in step (2), wash it with ethanol for 4 times, dry it in an oven at 80°C, take it out and grind it through a 200-mesh sieve to obtain a diatomite-loaded corrosion inhibitor structure.

[0031] How to use low-cost corrosion inhibitor-loaded structures:

[0032] Add 10 parts by mass of the diatomite-loaded corrosion inhibitor structure to 100 parts by mass of the water-based paint, and mix and stir for 3 hours.

Embodiment 3

[0034] (1) Under the stirring condition of 200r / min, in 100 parts by mass of water, add 0.1 mol / liter of hydrochloric acid to adjust the pH value of the solution between 5; then heat the solution to 50°C, add 15 parts by mass of cerium nitrate and mix evenly, Then add 1 mass part of absolute ethanol and stir for 0.5 hours;

[0035] (2) Add 10 parts by mass of analytical pure diatomaceous earth to the solution in step (1) under 500r / min stirring condition, and mix and stir for 3 hours;

[0036] (3) Centrifuge the mixture obtained in step (2), wash it with ethanol for 4 times, dry it in an oven at 80°C, take it out and grind it through a 200-mesh sieve to obtain a diatomite-loaded corrosion inhibitor structure.

[0037] How to use low-cost corrosion inhibitor-loaded structures:

[0038] Add 10 parts by mass of the diatomite-loaded corrosion inhibitor structure to 100 parts by mass of the water-based paint, and mix and stir for 3 hours.

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Abstract

The invention relates to anti-corrosion additive technology and aims at providing a preparation method of a low-cost corrosion inhibitor loading structure. The equipment includes: under stirring, add cerium nitrate to the heated acidic water and mix well, then add absolute ethanol and stir; add diatomaceous earth and stir; the resulting mixture is centrifuged, washed with ethanol and dried at 80°C, taken out and ground through 200 mesh sieve to obtain a low-cost corrosion inhibitor-loaded structure. The invention adopts the natural mineral diatomite as the porous loading structure, avoids the direct contact between the corrosion inhibitor and the paint, and can increase the content of the corrosion inhibitor to about 3%. The loading matrix in the low-cost corrosion inhibitor loading structure prepared by the present invention is diatomite, which is a natural mineral with a good pore structure distribution, and is very suitable for direct use as a loading structure, avoiding the preparation of complex porous loading structures process. The low price of diatomite greatly reduces the raw material cost of the load structure, and is suitable for large-scale use and promotion in industry.

Description

technical field [0001] The invention relates to the preparation technology of anticorrosion additives, in particular to a preparation method for a low-cost corrosion inhibitor loading structure. Background technique [0002] Anti-corrosion coatings for ships, especially anti-corrosion coatings for hulls, have high requirements on the corrosion resistance of coatings. Ordinary organic resin and other anti-corrosion coatings are combined with pretreatment layers and primers, and zinc powder and other anodic protective agents are added at the same time. It has better corrosion resistance performance. 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, a corrosion inhibitor is needed to help improve the corrosio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08
CPCC09D5/08
Inventor 吴春春樊先平张玲洁沈涛沈志成
Owner ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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