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Clean-type metal surface treatment agent

A metal surface treatment and cleaning technology, applied in the direction of metal material coating process, etc., can solve the problems of local corrosion and increase of corrosion current density, and achieve the effect of preventing metal corrosion, slowing electrode reaction and enhancing stability.

Inactive Publication Date: 2015-08-05
BENGBU TIMES ELECTRONICS
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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

[0017] A cleaning type metal surface treatment agent, which is made up of the following raw materials in parts by weight:

[0018] Propionamide 0.2, glycerin 2-3, sericin 4-6, yttrium nitrate hexahydrate 0.05, silane coupling agent KH-550 0.4, water 200, 2,6-di-tert-butyl p-cresol 0.2, potassium hydroxide 0.02 , triisopropanolamine 6, didecyl dimethyl ammonium bromide 0.7, p-toluenesulfonyl hydrazide 0.13, disodium hydrogen phosphate 2.

[0019] A preparation method of a cleaning type metal surface treatment agent, comprising the following steps:

[0020] (1) Take sericin, add 60% of the above water weight, stir evenly, add silane coupling agent KH-550, yttrium nitrate hexahydrate, stir and disperse at 1000 rpm for 20 minutes to obtain silane liquid;

[0021] (2) Take potassium hydroxide, add 70% of the remaining water weight, add p-toluenesulfonyl hydrazide, stir evenly, add triisopropanolamine, keep stirring at 80°C for 15 minutes, cool to room temperature, add silane solut...

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Abstract

The invention discloses a clean-type metal surface treatment agent which is composed of the following raw materials, by weight, 0.1-0.2 part of propanamide, 2-3 parts of glycerin, 4-6 parts of sericin, 0.05-0.1 part of yttrium nitrate hexahydrate, 0.4-1 part of a silane coupling agent KH-550, 150-200 parts of water, 0.1-0.2 part of 2,6-Di-tert-butyl-4-methylphenol, 0.01-0.02 part of potassium hydroxide, 4-6 parts of triisopropanolamine, 0.7-1 part of didecyldimethyl ammonium bromide, 0.1-0.13 part of p-toluenesulfonhydrazide and 2-3 parts of disodium hydrogen phosphate. After hydrolysis of the added silane, an adsorption type film can be formed on metal surface so as to isolate water molecules and oxygen molecules in the environment, thus having a protective effect. The rare earth metal ions and OH- generated by oxygen absorption corrosion of the metal substrate surface undergo complexing to generate insoluble complexes which can help enhance stability of the formed film and improve effects of rust protection and corrosion inhibition.

Description

technical field [0001] The invention mainly relates to the field of metal surface treatment agents, in particular to a cleaning type 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 dissolution of the...

Claims

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Application Information

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IPC IPC(8): C23G1/14C23C22/60
Inventor 朱兴堂朱亮亮陈军彦
Owner BENGBU TIMES ELECTRONICS
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