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Preparation method of high-gloss and corrosion-resistant water-based bronze powder

A copper-gold powder and corrosion-resistant technology, used in the preparation of water-based copper-gold powder, can solve the problems of uneven surface, fuzzy and smooth scaly edges, large particles, etc., achieve smooth appearance, strong adhesion, improved corrosion resistance and effect of gloss

Active Publication Date: 2021-03-02
深圳市绚图新材科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of uneven surface, blurred and smooth scale-like edges and large particles in the preparation of existing copper-gold powder, the present invention proposes a method for preparing high-gloss, corrosion-resistant water-based copper-gold powder

Method used

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  • Preparation method of high-gloss and corrosion-resistant water-based bronze powder

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Embodiment 1

[0028] Take 50g of commercially available copper gold powder and disperse it in 400ml of propylene glycol methyl ether, add 50ml of 5% dilute sulfuric acid, stir for 15min, suction filter after completion, and then wash with deionized water. Then, the copper-gold powder after suction filtration and washing was dispersed in 500 ml of deionized water, 1 g of mercaptopropanesulfonic acid and 1 g of polyethylene glycol 400 were added, stirred and reacted for 20 minutes, and then suction filtered. Disperse the filter cake obtained by suction filtration in 400ml of deionized water, add 0.5g of polyvinylpyrrolidone K15, stir and heat up to 40°C, add 2.8g of potassium sodium tartrate, 100ml of 0.1mol / l silver ammonia solution in turn, stir and React for 30 minutes, then add 100ml of 0.05mol / l glucose solution dropwise, and react for 1 hour. After the reaction was completed, it was washed with deionized water, filtered, and then dried at 60°C. Add the dry powder into a small ball mill...

Embodiment 2

[0030] Take 50g of commercially available copper gold powder and disperse it in 400ml of diethylene glycol butyl ether, add 50ml of 5% dilute sulfuric acid, stir for 15min, suction filter and wash with deionized water after completion. Then disperse the copper gold powder after washing and suction filtration in 500ml deionized water, add 1g sodium phenyl polydithiopropane sulfonate, 0.5g nonylphenol polyoxyethylene ether, stir and react for 20min, and then suction filter. Disperse the filter cake obtained by suction filtration in 400ml of deionized water, add 0.5g of polyoxyethylene octylphenol ether-10, stir and heat up to 40°C, add 65ml of 10% disodium EDTA, 65ml of 0.3mol / l of silver ammonia solution, stirred and reacted for 30min, then added dropwise 65ml of 0.15mol / l ascorbic acid solution, and reacted for 1h. After the reaction was completed, it was washed with deionized water, filtered, and then dried at 60°C. Add the dry powder into a small ball mill jar, add 600g of...

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Abstract

The invention discloses a preparation method of high-gloss and corrosion-resistant water-based bronze powder. The preparation method comprises the following steps: step one, washing the surface of bronze powder; step two, treating the surface of the bronze powder; step three, coating the surface of the bronze powder; and step four, carrying out ball-milling and polishing treatment to obtain the high-gloss and corrosion-resistant water-based bronze powder. According to the preparation method of the high-gloss and corrosion-resistant water-based bronze powder, the surface of the bronze powder istreated; a new diffusion layer is generated on the surface of the bronze powder, so that the surface is smooth and glossy; silver obtained by replacement and reduction of a silver-ammonia solution isinterspersed on the surface of the bronze powder; the binding force is strong; the coated silver is flattened after ball-milling and polishing treatment; corrosion resistance and glossiness of the bronze powder are improved; the bronze powder is subjected to ball-milling treatment; and silver and a corrosion inhibitor cooperate to coat the bronze powder, so that the corrosion resistance of the bronze powder is improved.

Description

technical field [0001] The invention relates to a method for preparing a pigment, in particular to a method for preparing a water-based copper-gold powder with high gloss and corrosion resistance. Background technique [0002] Copper gold powder (also known as gold powder) is a metallic pigment with a scaly structure prepared from a copper-zinc alloy and presents a golden luster. Copper gold powder pigment is widely used in screen printing, printing, paint, ink, paint, handicrafts, toys and other industries because of its brilliant decorative effect. [0003] With the improvement of people's awareness of environmental protection, the application field of copper gold powder is gradually changing from solvent-based to water-based. Since the water-based ink system is basically weakly alkaline, the particle size of the copper-gold powder is small, and the reactivity is large. During the application process, there will be problems such as the copper-gold powder is easily oxidize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F1/02B22F9/04C09C1/62C09C1/66C09C3/06C09C3/08C09C3/10
CPCB22F9/04C09C1/627C09C1/66C09C3/006C09C3/08C09C3/10C09C3/06B22F2009/043C01P2004/03B22F1/145B22F1/17B22F1/16
Inventor 刘俊伟梁嘉静林海晖
Owner 深圳市绚图新材科技有限公司
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