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Environment-friendly water-based metal surface treatment agent

A technology of surface treatment agent and base metal, applied in the direction of coating, anti-corrosion coating, protein coating, etc., can solve the problems of increased corrosion current density, localized corrosion, etc., and achieve good compatibility, good antibacterial and anti-corrosion properties, Effect of improving tensile strength and thermal stability

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
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of environment-friendly water-based metal surface treatment agent, it is made up of the raw material of following weight part:

[0020] Polyvinyl alcohol 20, dipotassium glycyrrhizinate 0.3, sodium palmitate soap 3, ammonium paratungstate 0.2, chlorinated paraffin 2, potassium silicate 0.2, 6-tert-butyl o-cresol 0.6, bone glue 0.3, potassium citrate 0.3, 2-aminoethyl Heptadecenyl imidazoline 0.3, sericin 8, boric acid 0.08, methyl benzotriazole 20, Span 80 0.9, deionized water 200.

[0021] A preparation method of an environment-friendly water-based metal surface treatment agent, comprising the following steps:

[0022] (1) Take bone glue, add 70% of the weight of the above deionized water, soak until the glue block becomes soft, heat to 80°C, add dipotassium glycyrrhizinate and sericin, keep stirring for 18 minutes, add the weight of the above polyvinyl alcohol 90%, boric acid, continued insulation and stirring at the above-mentioned temperature for 50 minutes ...

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PUM

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Abstract

The invention discloses an environment-friendly water-based metal surface treatment agent. The environment-friendly water-based metal surface treatment agent is composed of, by weight, 18 parts to 20 parts of polyvinyl alcohol, 0.1 part to 0.3 part of dipotassium glycyrrhizinate, 2 parts to 3 parts of sodium palmitate, 0.1 part to 0.2 part of ammonium paratungstate, 2 parts to 3 parts of chlorinated paraffin, 0.2 part to 0.3 part of potassium metasilicate, 0.6 part to 1 part of 6-tert-butyl-o-cresol, 0.3 part to 1 part of bone glue, 0.3 part to 1 part of potassium citrate, 0.3 part to 0.7 part of 2-aminoethyl heptadecenyl imidazoline, 6 parts to 8 parts of sericin, 0.08 part to 0.1 part of boric acid, 10 parts to 20 parts of methylbenzotriazole, 0.9 part to 2 parts of sorbitan oleate, and 170 parts to 200 parts of deionized water. Water soluble macromolecule polyvinyl alcohol is mixed with the sericin, and through boric acid modification, the tensile strength and the thermal stability of a blended membrane can be improved; corrosion inhibition alkali liquor with the methylbenzotriazole as a main material is added, so that the membrane adsorbed on a metal surface can be more even and stable; and a metal material is protected against corrosion of air and harmful media in water, and the better corrosion inhibition effect is achieved.

Description

technical field [0001] The invention mainly relates to the field of metal surface treatment agents, in particular to an environment-friendly water-based 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 anodi...

Claims

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Application Information

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IPC IPC(8): C23F11/14C09D129/04C09D189/00C09D5/08C09D7/12
Inventor 李久宁
Owner ANHUI HAODING METAL PROD LIMITED
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