Efficient zinc phosphate micro-nano anticorrosion agent preparation method

A high-efficiency zinc phosphate, micro-nano technology, applied in the direction of anti-corrosion coatings, nanotechnology, nanotechnology, etc., can solve the problems of difficult to take into account the crystallinity, difficult to take into account the particle size, etc., to promote dissolution, promote the formation, and good stirring effect Effect

Inactive Publication Date: 2014-07-02
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the situation that the existing zinc phosphate preservatives are difficult to take into account the particle size while ensuring the crystallinity or the crystallinity is difficult to ensure when the particle size is large, the present invention creatively proposes a new preparation method of a micro-nano zinc phosphate preservative

Method used

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  • Efficient zinc phosphate micro-nano anticorrosion agent preparation method
  • Efficient zinc phosphate micro-nano anticorrosion agent preparation method
  • Efficient zinc phosphate micro-nano anticorrosion agent preparation method

Examples

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Effect test

Embodiment 1

[0021] Weigh 0.6g CTAB in a beaker, add 200mL deionized water, after it is completely dissolved, add 300mL of 1mol / L Zn(NO 3 ) 2 Solution, stir well to make it evenly mixed. Under ultrasonic working conditions, slowly add 200mL of 1mol / L Na to the beaker dropwise 3 PO 4 solution until the addition is complete. The precipitate was transferred to the reaction kettle, ultrasonically cavitated for 24 hours, the power was 200W, and the temperature of the water bath was controlled at 150°C. After the reaction, wash and filter the precipitate, place it in a microwave reactor and dry it for 1 hour, and adjust the power to 300W to obtain zinc phosphate micro-nano powder. The particle size of the product is about 230nm, and the anticorrosion time is about 1015 hours.

Embodiment 2

[0023] Weigh 0.6g of polyethylene glycol in a beaker, add 200mL of deionized water, and after it is completely dissolved, add 300mL of 1mol / L Zn (NO 3 ) 2 Solution, stir well to make it evenly mixed. Under ultrasonic working conditions, slowly add 200 mL of 1 mol / L Na to the beaker dropwise 3 PO 4 solution until the addition is complete. The precipitate was transferred to the reaction kettle, ultrasonically cavitated for 24 hours, the power was 600W, and the temperature of the water bath was controlled at 150°C. After the reaction, wash and filter the precipitate, place it in a microwave reactor and dry it for 8 hours, and adjust the power to 600W to obtain zinc phosphate micro-nano powder. The particle size of the product is about 200nm, and the anticorrosion time is about 1049 hours.

[0024] Weigh 2.4g Triton x-100 in a beaker, add 200mL deionized water, after it is completely dissolved, add 300mL of 1mol / L Zn(NO 3 ) 2 Solution, stir well to make it evenly mixed. Un...

Embodiment 4

[0026] Weigh 2.4g CTAB in a beaker, add 200mL deionized water, after it is completely dissolved, add 300mL of 1mol / L Zn(NO 3 ) 2 Solution, stir well to make it evenly mixed. Under ultrasonic working conditions, slowly add 200mL of 1mol / L Na to the beaker dropwise 3 PO 4 solution until the addition is complete. The precipitate was transferred to the reaction kettle, ultrasonically cavitated for 24 hours, the power was 200W, and the temperature of the water bath was controlled at 150°C. After the reaction, the precipitate was washed and filtered by suction, then dried in a microwave reactor for 4 hours, and the power was adjusted to 300W to obtain zinc phosphate micro-nano powder. The particle size of the product is about 245nm, and the preservation time is about 997 hours.

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Abstract

The invention belongs to the field of inorganic chemistry, and particularly relates to an efficient zinc phosphate micro-nano anticorrosion agent preparation method, wherein the product is applied in the field of metal heavy corrosion. According to the present invention, a cycle ultrasonic cavitation effect and a high-temperature high-pressure water bath thermal effect are adopted to perform synchronous and synergetic regulation to prepare the efficient zinc phosphate micro-nano anticorrosion agent, wherein the synchronous and synergetic effect of the two effects is adopted so as to make the product system be well dispersed, ensure the uniformity of crystal nucleation and effectively solve the difficult problem of difficult synchronous regulation on the particle size and the crystallization degree of the nanometer crystal, and a microwave heating mode is adopted to dry the product so as to reduce the agglomeration; the prepared micro-nano zinc phosphate product has advantages of high purity, complete crystallinity, narrow particle size distribution, good dispersion and the like, wherein the effective corrosion protection time of the zinc phosphate micro-nano anticorrosion agent is up to 1056 h and is far superior to the effective corrosion protection time of the commercially available zinc phosphate anticorrosion material; and the method has characteristics of simple process and low cost, and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of inorganic chemistry, and in particular relates to a preparation method of a high-efficiency zinc phosphate micro-nano preservative, which is used in the field of metal anti-corrosion. Background technique [0002] Metal materials are widely used in our daily life, but metal corrosion brings a lot of inconvenience to our life and causes a lot of waste of resources and energy. Every year, metal parts damaged by corrosion account for 10% of the total steel production in the world, and accidents caused by equipment corrosion also occur frequently. In order to cope with economic losses and unexpected accidents caused by metal corrosion, it is an urgent problem to be solved to take good anti-corrosion measures, strengthen the research of anti-corrosion technology and the promotion of the latest scientific research results. At present, the most researched and widely used anti-corrosion material is zinc phosphate powder, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/37B82Y30/00C09D5/08C09D7/12
Inventor 刘金库童琴王建栋刘畅罗重霄张乃千邓天旸
Owner EAST CHINA UNIV OF SCI & TECH
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