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Preparation of intercalation material and application of intercalation material to water-based anticorrosive paint used in polar regions

A technology of anti-corrosion coatings and intercalation materials, applied in anti-corrosion coatings, nanotechnology for materials and surface science, epoxy resin coatings, etc., can solve the problems of poor water solubility, difficult to disperse curing agents, etc., and reduce VOC emissions , Improve the anti-corrosion effect and the effect of low-temperature curing ability

Inactive Publication Date: 2019-12-31
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the catalysts are solid and have poor water solubility, making it difficult to disperse into the curing agent

Method used

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  • Preparation of intercalation material and application of intercalation material to water-based anticorrosive paint used in polar regions
  • Preparation of intercalation material and application of intercalation material to water-based anticorrosive paint used in polar regions
  • Preparation of intercalation material and application of intercalation material to water-based anticorrosive paint used in polar regions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Non-catalytic controllable corrosion inhibition intercalation nano-magnesium aluminum hydrotalcite (MgAl-LDH-VO 4 ) Preparation of materials:

[0057] (1) Prepare the solution: Solution A: Weigh 44.4g of magnesium nitrate and 37.5g of aluminum nitrate into a three-neck flask, add 4000ml of deionized water to dissolve. Solution B: Weigh 27.6g of sodium metavanadate NaVO 3 , add 1000 ml of deionized water to dissolve, and use 0.1 mol / L NaOH aqueous solution to adjust the pH to 9.5-10.5.

[0058] (2) Heating reaction: Heat solution A to 80° C., and slowly add solution B dropwise under vigorous stirring for about 1 hour.

[0059] (3) Crystallization: after the dropwise addition, adjust the pH of the mixed solution to 10 with 0.1 mol / L NaOH, and raise the temperature to 80°C. The crystallization reaction is about 24h, and the obtained MgAl-LDH-VO 4 Suspension.

[0060] (4) Washing and drying: absorb a small amount of suspension, wash three times with water, centrifuge, ...

Embodiment 2

[0062] Non-catalytic controllable corrosion inhibition intercalation nano-magnesium aluminum hydrotalcite (MgAl-LDH-CrO 4 ) Preparation of materials:

[0063] (1) Prepare the solution: Solution A: Weigh 44.4g of magnesium nitrate and 37.5g of aluminum nitrate into a three-neck flask, add 4000ml of deionized water to dissolve. Solution B: Weigh 35.1g of sodium metavanadate NaCrO 4 , add 1000 ml of deionized water to dissolve, and use 0.1 mol / L NaOH aqueous solution to adjust the pH to 9.5-10.5.

[0064] (2) Heating reaction: Heat the solution A to 75° C., and slowly add the solution B dropwise under the condition of vigorous stirring for about 1 hour.

[0065] (3) Crystallization: After the dropwise addition, use 0.1 mol / L NaOH to adjust the pH of the mixed solution to 10, and raise the temperature to 75°C. The crystallization reaction is about 24h, and the obtained MgAl-LDH-CrO 4 Suspension.

[0066] (4) Washing and drying: absorb a small amount of suspension, wash three ...

Embodiment 3

[0068] Catalytic controllable corrosion inhibition intercalation nano-magnesium aluminum hydrotalcite (MgAl-LDH-MBIMD) material preparation.

[0069] (1) Prepare the solution: Solution A: Weigh 44.4g of magnesium nitrate and 37.5g of aluminum nitrate into a three-neck flask, add 4000ml of deionized water to dissolve. Solution B: Weigh 44.3g of 2-mercaptobenzimidazole, dissolve 11.8g of NaOH in 1000ml, and adjust the pH to 9.5-10.5.

[0070] (2) Heating reaction: Heat the solution A to 75° C., and slowly add the solution B dropwise under the condition of vigorous stirring for about 1 hour.

[0071] (3) Crystallization: after the dropwise addition, adjust the pH of the mixed solution to 10 with 0.1 mol / L NaOH, and raise the temperature to 85°C. The crystallization reaction was about 24 hours, and the MgAl-LDH-MBIMD suspension was obtained.

[0072] (4) Washing and drying: absorb a small amount of suspension, wash with water three times, centrifuge, and dry at a low temperature...

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PUM

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Abstract

The invention discloses a preparation method of an intercalation material with the dual effects of controllable corrosion inhibition and low-temperature catalysis. The intercalation material is applied to a paint, so a high-performance water-based anticorrosive paint used in a polar region and other low-temperature environments is researched and developed. A paint system comprises a component A and a component B, wherein the component A is a mixture using low-temperature-resistant epoxy resin as a matrix and formed by compounding the matrix with high-performance anticorrosive pigment and filler, and the component B is a modified amine curing agent. A coating formed by the paint has good long-term low temperature resistance and corrosion resistance, and is suitable for protection and decoration of ships and equipment used in polar regions.

Description

technical field [0001] The invention relates to the field of water-based anti-corrosion coatings, in particular to the preparation of an anti-corrosion intercalation material and the preparation method and application of low-temperature curing water-based anti-corrosion coatings. It is especially suitable for anticorrosion and repair of facilities and equipment that are constructed and used under low temperature conditions, such as the inner surface of polar ships, the surface of instruments and equipment in cold regions, etc. Background technique [0002] There are many kinds of epoxy resins and their excellent physical and chemical properties after curing, so they are widely used in the field of anti-corrosion coatings. With the improvement of the country's environmental protection requirements, water-based epoxy resin coatings have the characteristics of using water as a dispersant, non-toxic, non-flammable, easy to construct, and no VOC emissions, which is the developmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/00C07D235/28C07D277/72C07D233/84C01G31/00C01G37/00B82Y30/00C09D163/00C09D5/08C09D7/62
CPCC07D235/28C07D277/72C07D233/84C01G31/006C01G37/006B82Y30/00C09D163/00C09D5/084C09D7/62C01P2002/22C08K2003/327C01F7/78C08K9/04C08K3/22C08K3/32
Inventor 王波易敏华王贤明吴连峰宁亮张燕万众卢敏王飞
Owner MARINE CHEM RES INST
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