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A sealing treatment liquid and transparent corrosion-resistant film layer and preparation method thereof

A technology of sealing treatment and film layer, which is applied in the direction of coating, metal material coating process, electrolytic components, etc., can solve the problems of uneven sealing coating effect, uneven dispersion, and whether the corrosion resistance can not be effectively improved, so as to achieve good application. value, improved corrosion resistance, good metallic appearance

Active Publication Date: 2021-03-26
ZHUHAI M S T HARDWARE PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the graphene used in the above-mentioned patents is powder or slurry, and then mixed with silica sol, but they all need to solve the dispersion problem of graphene added to the sol, because the problem of uneven dispersion is prone to occur in the process of dispersing graphene , and the uneven dispersion will often lead to the uneven effect of the sealing coating, and the corrosion resistance cannot be effectively improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Ethanol, nickel sulfate and hydroxyphosphate surfactants were electrolyzed at a weight ratio of 0.1:22:0.12 at a DC voltage of 25V and 28°C for 4 hours, using a pure carbon rod as an anode and a platinum sheet as a cathode to obtain Containing the uniformly dispersed basic sealing solution of graphene sheet (graphene sheet concentration is 6wt%), the total concentration of organic solvent, inorganic sulfate and hydroxyphosphate ester surfactant three is 5.5wt%; Control nano-aluminum zirconium sol The ratio of aluminum to zirconium is 10:1, and after reacting and stirring for 4 hours in a conventional nano-sol synthesis reaction device, the obtained nano-aluminum-zirconium sol aqueous solution (the total molar concentration of aluminum sol and zirconium sol is 0.4mol / L) Mix it with the basic sealing solution prepared above (the weight ratio of the aqueous solution of nano-aluminum zirconium sol to the basic sealing solution is 9:1) to obtain a sealing treatment solution. ...

Embodiment 2

[0039] Ethanol, nickel sulfate and sorbitol fatty acid ester were electrolyzed for 4.5 hours at a DC voltage of 30V and 25°C in a weight ratio of 0.1:20:0.1, using a pure carbon rod as an anode and a platinum sheet as a cathode to obtain a The uniformly dispersed basic sealing solution of graphene sheet (the concentration of graphene sheet is 7.5wt%); The total concentration of organic solvent, inorganic sulfate and sorbitol fatty acid ester three in the basic sealing solution is 5wt%, and The nano-aluminum-zirconium sol is prepared in the synthesis reaction device, and the ratio of aluminum to zirconium in the nano-aluminum-zirconium sol is controlled to be 9:1. After reacting and stirring for 4 hours, the obtained nano-aluminum-zirconium sol aqueous solution (the total molar concentration of aluminum sol and zirconium sol is 0.8mol / L) was mixed with the basic sealing solution prepared above (nano-aluminum-zirconium sol aqueous solution and basic sealing solution The weight r...

Embodiment 3

[0044] Ethanol, nickel sulfate and sorbitol fatty acid esters are used in a weight ratio of 0.1:20:0.1, under the conditions of DC voltage 20V and 25°C, with pure carbon rod as anode and platinum sheet as cathode, electrolyze for 5 hours to obtain The uniformly dispersed basic sealing solution of graphene sheet (the concentration of graphene sheet is 6.2wt%); The total concentration of ethanol, nickel sulfate and sorbitol fatty acid ester three in the basic sealing solution is 4.5wt%, and in conventional The nano-aluminum-zirconium sol is prepared in the nano-sol synthesis reaction device, and the ratio of aluminum to zirconium in the nano-aluminum-zirconium sol is controlled to be 10:1. After reacting and stirring for 4 hours, the obtained nano-aluminum-zirconium sol aqueous solution (the total molar concentration of aluminum sol and zirconium sol is 1mol / L) was mixed with the basic sealing solution prepared above (the ratio of nano-aluminum-zirconium sol aqueous solution and ...

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PUM

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Abstract

The invention relates to sealing treatment liquid and a preparing method thereof, and a transparent corrosion resisting film prepared through the sealing treatment liquid. The method comprises the following steps that in liquid containing an organic solvent, inorganic sulfate and a surface active agent, electrolysis is conducted for 4-6 h, and a basic sealing solution containing a graphene sheet is obtained; and after a nano aluminum zirconium gel water solution is stirred in a synthetic reaction device, the nano aluminum zirconium gel water solution and the prepared basic sealing solution aremixed, a highly-scattered nano gel sealing water solution is formed, then, a passivation component is arranged in the water solution for sealing treatment, and drying is conducted. According to the provided preparing method, the surface weight of an electro-galvanized (or electro-galvanized nickel alloy) automobile component is not increased basically (the thickness of the film is only 50-100 nanometers, and the film is transparent), and the plated layer appearance is uniform.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and specifically relates to a sealing treatment solution and a preparation method thereof, and a transparent corrosion-resistant film layer with low surface energy and low friction coefficient prepared by using the sealing treatment solution and a preparation method thereof. Background technique [0002] Lightweight and high-strength steel parts of automobiles are generally treated with trivalent chromium passivation (blue, color, etc.) after galvanization and zinc-nickel alloy plating, and then sealed (foreign Atotech products, some products in the domestic market) . However, the surface of the plating layer of the parts cannot maintain a stable low surface energy (water contact angle above 110°) and a low coefficient of friction, which is difficult to meet the requirements of electroplating products for auto parts. [0003] Some literature adopts galvanizing or zinc-nickel plating to pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/48C23C26/00C01B32/19
CPCC23C26/00C25B1/00C25D5/48
Inventor 向可友肖革蓝玉良杨晓波朱立群
Owner ZHUHAI M S T HARDWARE PLASTIC PROD CO LTD