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A kind of preparation method of nano titanium material for anticorrosion

A nano-titanium and solvent technology, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of excessive particle size, low bulk density, and low purity of nano-titanium powder. Good stability, good wetting and adsorption properties, good anti-corrosion effect

Active Publication Date: 2022-01-14
广东银纳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned problems in the prior art, the present invention provides a preparation method of nano-titanium material for anti-corrosion. Through ultrasonic and centrifugal treatment, a nano-titanium material for anti-corrosion with suitable particle size and high concentration is obtained, which solves the problem of nano-titanium material in the prior art. Problems of low purity of titanium powder, too large particle size and low bulk density

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  • A kind of preparation method of nano titanium material for anticorrosion
  • A kind of preparation method of nano titanium material for anticorrosion
  • A kind of preparation method of nano titanium material for anticorrosion

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preparation example Construction

[0047] The preparation principle of the present invention is: after adding nano-scale titanium powder into a dispersant, it is highly dispersed in an organic solvent. The organic solvent matches the aluminum film of the lithium battery, and the product performance can reach the imported level, realizing import substitution.

[0048] Through the preparation method of the present invention, in step S1, by mixing and stirring, the nano-titanium powder can be fully dispersed into the solvent under the action of the dispersant; by standing still, the effect of the dispersant on the nano-titanium powder can be further promoted and strengthened. Adsorption and infiltration, so as to better promote the stable dispersion of nano-titanium powder in the solvent.

[0049] In step S1, although the adsorption and infiltration of the dispersant to the nano-titanium powder are promoted and strengthened after standing still, problems such as stratification will still occur, and it is necessary ...

Embodiment 1

[0088] S1: Nano-titanium powder (prepared by electric explosion method, purity > 98%, the nano-titanium powder used contains particles above 1um), dispersant polyvinylpyrrolidone (abbreviation: pvp), and absolute ethanol at 10:1: 15 parts by weight were mixed, stirred with a mixer for 2 hours, and then left to stand for 24 hours;

[0089] S2: Stir fully with a mixer, and then ultrasonically perform ultrasonication for 30 minutes, and the ultrasonic temperature should not exceed 40°C;

[0090] S3: Centrifuge with a centrifuge, the speed of the centrifuge is 1000 rpm, the centrifugation time is 10 minutes, and the supernatant is taken after centrifugation;

[0091] S4: Centrifuge the supernatant liquid with a centrifuge, the centrifuge speed is 4000 rpm, and the centrifugation time is 30 minutes, and the bottom nano titanium powder is taken after centrifugation;

[0092] S5: Disperse the bottom nano-titanium powder in the solvent N-methylpyrrolidone (abbreviation: NMP) and stir...

Embodiment 2

[0095] S1: Mix nano-titanium powder (prepared by electric explosion method, purity > 98%, the used nano-titanium powder contains particles above 1um), dispersant polyvinyl alcohol, and acetone in a weight ratio of 99:1:50, Stir with a mixer for 3 hours, then let stand for 18 hours;

[0096] S2: Thoroughly stir with a mixer, and then use ultrasonic waves for 40 minutes, and the ultrasonic temperature is 30°C;

[0097] S3: Centrifuge with a centrifuge, the speed of the centrifuge is 1200 rpm, the centrifugation time is 9 minutes, and the supernatant is taken after centrifugation;

[0098] S4: Centrifuge the supernatant liquid with a centrifuge, the centrifuge speed is 5000 rpm, and the centrifugation time is 15 minutes, and the bottom nano titanium powder is taken after centrifugation;

[0099] S5: Disperse the bottom nano-titanium powder in the solvent N-methylpyrrolidone (abbreviation: NMP) and stir it with a mixer. The weight ratio of the bottom nano-titanium powder to N-met...

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Abstract

The invention relates to a preparation method of nano-titanium material for anticorrosion, comprising the following steps, S1: mixing nano-titanium powder, a dispersant and a solvent in proportion, stirring with a stirrer, and then standing still; S2: stirring with a stirrer, and then Ultrasound with ultrasonic waves; S3: Centrifuge with a centrifuge, and take the supernatant after centrifugation; S4: Centrifuge the supernatant with a centrifuge, and take the bottom nano-titanium powder after centrifugation; S5: Disperse the bottom nano-titanium powder in a solvent and stirring with a mixer to obtain nano-titanium materials for anticorrosion. The invention provides a method for preparing nano-titanium materials for anti-corrosion. Through ultrasonic and centrifugal treatment, nano-titanium materials for anti-corrosion with suitable particle size and high concentration are obtained, which solves the problem of low purity and particle size of nano-titanium powder in the prior art. Problems with oversized and low bulk density.

Description

technical field [0001] The invention belongs to the technical field of titanium nanometer materials, and in particular relates to a preparation method of nanometer titanium materials for anticorrosion. Background technique [0002] Titanium materials can be used in anti-corrosion materials for lithium battery aluminum films to improve the overall anti-corrosion performance of materials. In particular, when high-concentration electronic-grade nano-titanium materials are used as anti-corrosion materials for lithium battery aluminum films, the anti-corrosion performance of the nano-titanium materials is twice as high as that of micron-sized titanium materials. However, there is no such nano-titanium material product in China at present, and the nano-titanium material required for high-end lithium battery aluminum film needs to be imported. [0003] Among them, the difficulty in the preparation of nano-titanium materials lies in the need for high-purity nano-titanium powder. D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/054B22F9/04B82Y30/00B82Y40/00
CPCB22F9/04B82Y30/00B82Y40/00B22F1/0545
Inventor 李广兵徐校培陈日沉
Owner 广东银纳科技有限公司
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