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Preparation method of inorganic oxide pigment and filler loaded with composite corrosion inhibitor

A technology of inorganic oxides and composite corrosion inhibitors, applied in fibrous fillers, dyed low-molecular organic compound treatment, anti-corrosion coatings, etc., can solve the problems of no self-healing effect, complicated preparation process of micro-nano containers, and high cost

Pending Publication Date: 2021-10-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose is to solve the problems of poor compatibility between existing inorganic pigments and fillers and organic coatings, no self-healing effect, complex preparation process and high cost of micro-nano containers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] (1) Grinding the rutile titanium dioxide for 6 hours with a rapid dispersion testing machine to obtain micro-nano powder with a particle size of 100 nm-10 μm.

[0020] (2) Mix ethanol and deionized water with a volume ratio of 1:9 as the dispersion medium, add rutile titanium dioxide in (1) to the dispersion medium at a mass fraction of 40%, and use a rapid dispersion tester to fully disperse for 2 hours , the rutile titanium dioxide dispersion liquid was prepared and set aside.

[0021] (3) Take 4 g of the azole corrosion inhibitor benzotriazole, add it to 25 g of rutile titanium dioxide dispersion liquid with a mass fraction of 40%, and fully disperse it with a rapid dispersion tester for 2 hours again to obtain A (corrosion inhibitor ) and B (titanium dioxide) component mass ratio of 2:5 emulsion. The solution was distilled to dryness under reduced pressure, put into an oven for sufficient drying, and the temperature was set at 80° C. to obtain rutile titanium dioxi...

example 2

[0024] (1) Grinding the cordierite porous ceramic material with a rapid dispersion tester for 6 hours to obtain a micro-nano powder with a particle size of 100 nm-10 μm.

[0025] (2) Mix ethanol and deionized water with a volume ratio of 1:9 as the dispersion medium, add the porous ceramic material in (1) into the dispersion medium with a mass fraction of 40%, and fully disperse for 2 hours using a rapid dispersion tester , prepare a porous ceramic material dispersion, and set aside.

[0026](3) Take 8 g of the azole corrosion inhibitor benzotriazole. Add it into 25g of the porous ceramic material dispersion with a mass fraction of 40%, and fully disperse it with a rapid dispersion tester for 2 hours again to obtain a 4:5 mass ratio of A (corrosion inhibitor) and B (cordierite porous ceramic material) lotion. The solution was distilled to dryness under reduced pressure, put into an oven for sufficient drying, and the temperature was set at 80°C to obtain a cordierite porous ...

example 3

[0029] (1) Grinding the rutile titanium dioxide for 6 hours with a rapid dispersion testing machine to obtain micro-nano powder with a particle size of 100 nm-10 μm.

[0030] (2) Mix ethanol and deionized water with a volume ratio of 1:9 as the dispersion medium, add rutile titanium dioxide in (1) to the dispersion medium at a mass fraction of 40%, and use a rapid dispersion tester to fully disperse for 2 hours , the rutile titanium dioxide dispersion liquid was prepared and set aside.

[0031] (3) According to the mass ratio of 30:10:5:1, benzotriazole, ethanolamine phosphate, sodium phosphate and cerium nitrate were mixed into 4g, and added to 25g of rutile titanium dioxide dispersion with a mass fraction of 40%. , and again fully dispersed with a rapid dispersion tester for 2 hours to obtain an emulsion with a mass ratio of A (corrosion inhibitor) and B component (titanium dioxide) of 2:5. The solution was distilled to dryness under reduced pressure, put into an oven for s...

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Abstract

The invention discloses a preparation method of an inorganic oxide pigment and filler loaded with a composite corrosion inhibitor, and belongs to the technical field of preparation of anticorrosive pigments and fillers. The inorganic oxide pigment and filler loaded with the composite corrosion inhibitor comprises a component A and a component B, wherein the component A is a composite corrosion inhibitor and comprises organic nitrogen azoles (such as diazoles, triazoles, tetrazoles and derivatives thereof), amine phosphate (ethanolamine phosphate, triethanolamine phosphate and the like) and inorganic trivalent cerium and phosphate compounds. The azole compounds have a good corrosion inhibition effect on nonferrous metals such as copper, aluminum, magnesium and alloys thereof, and the compounds such as amine phosphate and phosphate have a good corrosion inhibition effect on iron-based materials such as carbon steel and alloy steel; and the trivalent cerium compounds are used for promoting passivation of the base material. The problems that an existing inorganic pigment filler is poor in compatibility with an organic coating and has no self-repairing effect, and a micro-nano container is complex in preparation process, high in cost and the like are solved.

Description

technical field [0001] The invention relates to a method for preparing inorganic oxide pigments and fillers loaded with composite corrosion inhibitors, and belongs to the technical field of preparation of anti-corrosion pigments and fillers. Background technique [0002] Organic coatings are one of the most commonly used methods to control metal corrosion. However, organic coatings have poor wear resistance and are susceptible to damage. Adding pigments and fillers loaded with composite corrosion inhibitors to organic coatings is not only beneficial to the combination of organic film-forming substances and pigments and fillers, but also improves the resistance to corrosive media, and when the organic coating is damaged, the composite corrosion inhibitor loaded The pigments and fillers of the etchant can also release the composite corrosion inhibitor and diffuse to the damaged part of the coating to inhibit the corrosion of the metal substrate and improve its corrosion resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C1/42C09C3/08C09D5/08
CPCC09C1/407C09C1/42C09C3/08C09D5/084
Inventor 雍兴跃耿晓倩陈振宁纪灏天
Owner BEIJING UNIV OF CHEM TECH
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