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Lithium-based anti-bacteria metal surface treatment agent

A metal surface treatment, lithium-based technology, applied in the coating process of metal materials, etc., can solve the problems of increased corrosion current density, localized corrosion, etc., to resist bacterial and fungal contamination, improve tensile strength and thermal stability, Good corrosion inhibition effect

Inactive Publication Date: 2015-08-26
ANHUI HAODING METAL PROD LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount is insufficient, a complete oxide film cannot be formed, and the corrosion current density increases on the small metal surface that is not covered, which is likely to cause severe local corrosion

Method used

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Examples

Experimental program
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Embodiment 1

[0018] A lithium base antibacterial metal surface treatment agent, it is made up of the raw material of following weight part:

[0019] Polyvinyl alcohol 20, tea saponin 0.5, lithium-based grease 4, ferrocenecarboxylic acid 0.4, hexahydrophthalic anhydride 0.2, potassium sorbate 0.5, DBNPA 0.12, hexamethylphosphoramide 0.2, bisulfite Sodium 2, sericin 6-8, boric acid 0.08, methyl benzotriazole 20, deionized water 200.

[0020] A preparation method of a lithium-based antibacterial metal surface treatment agent, comprising the following steps:

[0021] (1) Take potassium sorbate and DBNPA, add 70% of the weight of the above deionized water, stir evenly, add sericin, keep stirring at 60°C for 20 minutes, add polyvinyl alcohol and boric acid, keep stirring at 70°C for 50 minutes, get sericin emulsion;

[0022] (2) Add methyl benzotriazole to dilute lye 3 times its weight, heat to 70°C, add hexamethylphosphoramide, stir to normal temperature to obtain corrosion inhibiting lye;

...

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PUM

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Abstract

The invention discloses a lithium-based anti-bacteria metal surface treatment agent which comprises the following components in parts by weight: 15-20 parts of polyvinyl alcohol, 0.4-0.5 part of tea saponin, 3-4 parts of lithium lubricating grease, 0.4-1 part of ferrocenecarboxylic acid, 0.1-0.2 part of hexahydrophthalic anhydride, 0.1-0.12 part of DBNPA, 0.5-1 part of potassium sorbate, 0.1-0.2 part of hexamethyl phosphoramide, 1-2 parts of sodium bisulfite, 6-8 parts of sericin, 0.08-0.1 part of boric acid, 10-20 parts of methylbenzotriazole and 180-200 parts of deionized water. According to the invention, water-soluble polymer polyvinyl alcohol and sericin are mixed, and through modification of boric acid, tensile strength and heat stability of a blended membrane are improved, the membrane adsorbed on the surface of the metal is more uniform and stable since corrosion inhibition alkali liquor using methylbenzotriazole as a main material is added, the metal material is protected from being corroded by harmful media in atmosphere and water, a better corrosion inhibition effect is achieved, and bacterial and fungal contamination can be effectively resisted sine the added DBNPA, potassium sorbate and other various metal surface treatment agent additives are compatible.

Description

technical field [0001] The invention mainly relates to the field of metal surface treatment agents, in particular to a lithium-based antibacterial metal surface treatment agent. Background technique [0002] Metal surface treatment agent refers to the general term for various chemical agents for metal surface treatment. Metal surface treatment includes degreasing, rust removal, phosphating, antirust and other substrate pretreatments, which are prepared for metal coating technology and metal protection technology. The quality of substrate pretreatment has a great influence on subsequent coating preparation and metal use. The water-soluble rust inhibitor can be dissolved in water to form an aqueous solution, and the metal can prevent corrosion and rust after being treated with this aqueous solution. Their antirust effect can be divided into three categories. [0003] ①The metal and the antirust agent form an insoluble and dense oxide film, thus preventing the anodic diss...

Claims

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Application Information

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IPC IPC(8): C23C22/05
Inventor 李久宁
Owner ANHUI HAODING METAL PROD LIMITED
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