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A kind of preparation method of imidazoline-zinc oxide composite powder

A composite powder and imidazoline technology, which is applied in chemical instruments and methods, dyeing low-molecular organic compound treatment, fibrous fillers, etc., can solve the problems of complicated impregnation loading process and the inability to add corrosion inhibitor imidazoline, etc., to achieve The preparation process is simple and the effect of avoiding complicated processes

Active Publication Date: 2020-12-11
ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, hollow silica microspheres are usually used to impregnate and load imidazoline, but the process of impregnating and loading is relatively complicated, and the corrosion inhibitor imidazoline cannot be added too much in metal anti-corrosion coatings (generally, the dosage is within 3 / 1000). )

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Under the stirring condition of 200r / min, add 0.02mol of zinc acetate dihydrate and 100ml of diethylene glycol into the three-necked flask, and add 0.01mol of imidazoline at the same time, heat the oil bath to 100°C and stir for 1 hour to fully dissolve;

[0025] 2. Finally, raise the temperature of the oil bath to 160°C, condense and reflux, and stir for 4 hours;

[0026] 3. Take out the flask from the oil bath and put it in cold water to terminate the reaction;

[0027] 4. The liquid in the flask was separated with a centrifuge (12000rpm, 10min), and the obtained precipitate was centrifugally washed with absolute ethanol (12000rpm, 10min) twice;

[0028] 5. Dry the precipitate in an oven at 80°C to obtain the imidazoline-zinc oxide composite powder material.

Embodiment 2

[0030] 1. Under the stirring condition of 200r / min, add 0.02mol zinc acetate dihydrate and 100ml diethylene glycol into the three-necked flask, and add 0.015mol imidazoline at the same time, heat the oil bath to 100°C and stir for 1 hour to fully dissolve;

[0031] 2. Finally, raise the temperature of the oil bath to 140°C, condense and reflux, and stir for 6 hours;

[0032] 3. Take out the flask from the oil bath and put it in cold water to terminate the reaction;

[0033] 4. The liquid in the flask was separated with a centrifuge (12000rpm, 10min), and the obtained precipitate was centrifugally washed with absolute ethanol (12000rpm, 10min) twice;

[0034] 5. Dry the precipitate in an oven at 80°C to obtain the imidazoline-zinc oxide composite powder material.

Embodiment 3

[0036] 1. Under the stirring condition of 200r / min, add 0.02mol of zinc acetate dihydrate and 100ml of diethylene glycol into the three-necked flask, and add 0.02mol of imidazoline at the same time, heat the oil bath to 100°C and stir for 1 hour to fully dissolve it;

[0037] 2. Finally, raise the temperature of the oil bath to 150°C, condense and reflux, and stir for 5 hours;

[0038] 3. Take out the flask from the oil bath and put it in cold water to terminate the reaction;

[0039] 4. The liquid in the flask was separated with a centrifuge (12000rpm, 10min), and the obtained precipitate was centrifugally washed with absolute ethanol (12000rpm, 10min) twice;

[0040] 5. Dry the precipitate in an oven at 80°C to obtain the imidazoline-zinc oxide composite powder material.

[0041] Application example:

[0042] 1. The imidazoline-zinc oxide composite powder prepared by the present invention, its specific application method:

[0043] Take 0.5g of imidazoline-zinc oxide compo...

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PUM

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Abstract

The invention relates to the preparation technology of metal coating anticorrosion materials, and aims to provide a preparation method of imidazoline-zinc oxide composite powder. It includes: mixing zinc acetate dihydrate, diethylene glycol and imidazoline under stirring, heating to fully dissolve; heating to 140-160°C to condense and reflux, stirring and reacting; centrifuging after terminating the reaction, washing the precipitate with absolute ethanol, and drying dry to obtain imidazoline-zinc oxide composite powder. The preparation process of the invention is simple, and the core-shell material coated with silicon oxide can be directly prepared by using zinc oxide as the core material. In the subsequent use, as long as the zinc oxide is dissolved with hydrochloric acid, the imidazoline can be left in the silica shell, avoiding the complicated process of impregnating hollow silica microspheres to load imidazoline. The load of imidazoline can be further increased, and more imidazoline after coating can be added without directly contacting with the coating, and the addition of imidazoline can be increased.

Description

technical field [0001] The invention relates to the preparation technology of metal coating anticorrosion materials, in particular to a preparation method of imidazoline-zinc oxide composite powder. Background technique [0002] As a semiconductor amphoteric oxide, zinc oxide has a wide range of applications, especially in the preparation process of core-shell materials and is often used as a core material. Imidazoline is a corrosion inhibitor material widely used in metal anticorrosion coatings. [0003] In the prior art, hollow silica microspheres are usually used to impregnate and load imidazoline, but the process of impregnating and loading is relatively complicated, and the corrosion inhibitor imidazoline cannot be added too much in metal anti-corrosion coatings (generally, the dosage is within 3 / 1000). ). Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method for preparing imidazoline-zinc oxide composi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/04C09C3/06C09C3/08C09D5/08
CPCC09C1/043C09C3/006C09C3/063C09C3/08C09D5/08
Inventor 杨辉吴春春张玲洁
Owner ZIGONG INNOVATION CENT OF ZHEJIANG UNIV