Amorphous stabilized nano composite anticorrosive pigment

An anti-corrosion pigment and nano-composite technology, which is applied in the field of material chemistry, can solve the problem that there is no research report on the preparation of amorphous stabilized nano-composite anti-corrosion pigment, and achieve the effects of improving anti-corrosion performance, simplifying the preparation process and reducing production costs.

Inactive Publication Date: 2019-06-04
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Through the investigation of the types and preparation technologies of existing anti-corrosion pigments, it is found that there is no research report on the preparation of amorphous stabilized nano-composite anti-corrosion pigments

Method used

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  • Amorphous stabilized nano composite anticorrosive pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare zinc nitrate and 0.15 mol / L sodium tungstate solutions with a concentration of 0.15 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 1.68 mL to the zinc nitrate and sodium tungstate solutions respectively g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 500 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 2.0 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 170 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance tes...

Embodiment 2

[0022] Prepare zinc nitrate and 0.3 mol / L sodium tungstate solutions with a concentration of 0.3 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 3.36 mL to the zinc nitrate and sodium tungstate solutions respectively g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 700 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 1.7 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 200 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance test ...

Embodiment 3

[0024] Prepare zinc nitrate and 0.03 mol / L sodium tungstate solutions with concentrations of 0.03 mol / L respectively, measure 25 mL of the above two solutions and place them in two beakers, add 0.336 g benzotriazole, stirred until fully dissolved. Add sodium tungstate containing benzotriazole dropwise to the zinc nitrate solution under 800 W ultrasonic conditions. After reacting for a certain period of time, take the precipitate, wash it with deionized water for 3 times and put it in an oven. and dry for 12 hours to obtain an amorphous stabilized nanocomposite anticorrosion pigment. The overall diameter of the obtained amorphous stabilized nano-composite anti-corrosion pigment is about 1.7 μm, and the thickness of the nano-sheets assembled into the nano-assembled flaky anti-corrosion pigment is about 160 nm. The anti-corrosion pigment is added to the paint to make a paint film. The results of the impedance test show that the impedance value is as high as 22140 ohm cm after 48...

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Abstract

The invention belongs to the technical field of material chemistry, and particularly relates to an amorphous stabilized nano composite anticorrosive pigment product and a preparation method thereof, the amorphous stabilized nano composite anticorrosive pigment product is characterized in that pieces of the benzotriazole composite zinc tungstate nano-assembled sheet-shaped anticorrosive pigment arecrossed with each other, the overall diameter of the benzotriazole composite zinc tungstate nano-assembled flaky anticorrosive pigment is about 1-2 microns, and the thickness of the nano-sheet assembled into the sheet-shaped structure is 150-200 nm. The amorphous stabilized nano composite anticorrosive pigment product has the characteristics of good stability, high temperature resistance, excellent corrosion resistance and the like.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to an amorphous stabilized nano composite anticorrosion pigment and a preparation method thereof. Background technique [0002] In the field of anti-corrosion, benzotriazole is a traditional anti-corrosion pigment. After it is added to the coating, it will block oxygen and moisture, thereby increasing the movement resistance of ions on the metal surface and resisting corrosion. Although benzotriazoles also suffer from the same deficiencies in stability and durability as other organic materials, these deficiencies can be effectively resolved by stabilization of amorphous materials. [0003] As an important tungstate, zinc tungstate is often used in the field of luminescent materials and photocatalysis. As we all know, the morphology and performance of materials are closely related, especially nano-assembled spherical materials, which have excellent characteristics that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08
Inventor 刘金库袁晓宇周丹张先梅张婧玉裴悦恬范逸玮马超琦赵加林
Owner EAST CHINA UNIV OF SCI & TECH
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