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A kind of bath for electroplating nano-pearl zinc and preparation method thereof

A technology of nano pearls and pearl zinc, applied in the fields of nanotechnology, nanotechnology and nanotechnology for material and surface science, can solve the problems of process pollutants exceeding the requirements of environmental protection, poor chemical polishing, and large environmental pollution, etc. Achieve the effect of small voids, easy diffuse reflection and good corrosion resistance

Active Publication Date: 2016-09-28
武汉奥邦表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, hexavalent chromium and trivalent chromium are mainly used for passivation treatment. The use of hexavalent chromium for passivation treatment consumes a lot, and most of the chromium is discharged with water during cleaning, resulting in great pollution to the environment. The chromium valence process has been banned by the European Union because the discharge of pollutants from this process greatly exceeds the requirements for environmental protection; although the use of trivalent chromium for passivation treatment reduces the content of hexavalent chromium in wastewater, the chemical polishing of this passivation solution Poor performance, need to adjust the ratio frequently

Method used

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  • A kind of bath for electroplating nano-pearl zinc and preparation method thereof
  • A kind of bath for electroplating nano-pearl zinc and preparation method thereof
  • A kind of bath for electroplating nano-pearl zinc and preparation method thereof

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preparation example Construction

[0045] A preparation method based on a plating solution for electroplating nano-pearl zinc, comprising the following steps:

[0046] S1. Prepare quaternized polyethyleneimine, 2-[(aminoiminomethyl)thio]nicotinic acid and alkylpolyethylenepolyamine, and weigh 0.05~0.1 parts of quaternized polyethyleneimine respectively according to mass ratio , 0.1 to 0.5 parts of 2-[(aminoiminomethyl)thio]nicotinic acid, 0.5 to 5 alkylpolyethylene polyamines, and sequentially configured into quaternized polyethyleneimine solution, 2-[(aminoimino Methyl) sulfur] nicotinic acid solution and alkyl polyethylene polyamine solution, by volume ratio, quaternized polyethyleneimine solution: 2-[(aminoiminomethyl) sulfur] nicotinic acid solution: alkyl poly Ethylene polyamine solution = 1:5:10.

[0047] S2. Weigh 130-140 parts of solid sodium hydroxide and 10-14 parts of zinc oxide according to the mass ratio, add them into the plating tank, and stir evenly.

[0048] S3. Add 250 parts of water and kee...

Embodiment 1

[0074] A plating solution for electroplating nano-pearl zinc, the components include 1000g water, 130g sodium hydroxide, 12g zinc oxide, 0.05g quaternized polyethyleneimine, 0.1g2-[(aminoiminomethyl)sulfur] Niacin, 0.5g alkyl polyethylene polyamine.

[0075] The preparation process is: first prepare quaternized polyethyleneimine, 2-[(aminoiminomethyl)thio]nicotinic acid and alkylpolyethylene polyamine according to the above method, and weigh 0.05g of quaternized polyethyleneimine Amine, 0.1g 2-[(aminoiminomethyl)sulfur]nicotinic acid, 0.5g alkylpolyethylene polyamine, sequentially configured into quaternized polyethyleneimine solution, 2-[(aminoiminomethyl)sulfur ] nicotinic acid solution and alkylpolyethylene polyamine solution; then take by weighing 130g sodium hydroxide and 12g zinc oxide and add in the plating tank, and stir evenly; Add 250g water, stir constantly, make above-mentioned solid dissolve completely; Add 250g water and mix Stir fully to form a liquid; after co...

Embodiment 2

[0077] A plating solution for electroplating nano-pearl zinc, the components include 1000g water, 130g sodium hydroxide, 12g zinc oxide, 0.075g quaternized polyethyleneimine, 0.25g2-[(aminoiminomethyl)sulfur] Niacin, 2.5g alkylpolyethylenepolyamine.

[0078]The preparation process is as follows: first prepare quaternized polyethyleneimine, 2-[(aminoiminomethyl)thio]nicotinic acid and alkylpolyethylene polyamine according to the above method, and weigh 0.075g of quaternized polyethyleneimine . ] nicotinic acid solution and alkylpolyethylene polyamine solution; then take by weighing 130g sodium hydroxide and 12g zinc oxide and add in the plating tank, and stir evenly; Add 250g water, stir constantly, make above-mentioned solid dissolve completely; Add 250g water and mix Stir fully to form a liquid; after cooling, add 1g of impurity remover to the above liquid, stir fully for 0.5-1h, and filter after standing still for 2-3h; add the above-mentioned quaternized polyethyleneimine ...

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Abstract

A plating solution for electroplating nano-pearl zinc and a preparation method thereof, relating to the field of metal material surface treatment technology, the plating solution is water, and the solute includes 130-140g / L sodium hydroxide, 10-14g / L zinc oxide, 0.05~0.1g / L quaternized polyethyleneimine, 0.1~0.5g / L2‑[(aminoiminomethyl)thio]nicotinic acid, 0.5~5g / L alkylpolyethylenepolyamine. The preparation method of this plating solution is: Weigh sodium hydroxide and zinc oxide into the plating tank and stir evenly; The solution prepared by the zinc additive is replenished with water to the required volume, and stirred evenly to obtain the product. The present invention can be plated with fine structure, low internal stress, less pores and good corrosion resistance, and does not need chromate passivation treatment, thereby reducing environmental pollution.

Description

technical field [0001] The invention relates to the field of metal material surface treatment technology, in particular to a plating solution for electroplating nano-pearl zinc and a preparation method thereof. Background technique [0002] According to the type of galvanizing electrolyte, the galvanizing process can be basically divided into alkaline cyanide galvanizing process, zincate galvanizing process, ammonium salt galvanizing process, ammonium-free chloride galvanizing process and sulfate galvanizing process. The cyanide galvanizing solution has excellent dispersing ability and covering ability, the cathodic current density and the temperature of the solution are allowed to be wider, the corrosion force to the equipment is small, and the coating is bright and meticulous, the internal stress is small, and the adhesion is good, which can meet the general requirements. Anti-corrosion decoration requirements, but a fatal weakness is the high toxicity of the plating solut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/22B82Y30/00
Inventor 吕明威吕志
Owner 武汉奥邦表面技术有限公司
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