Non-phosphorous water-based degreasing agent used in non-phosphorous coating pretreatment

A pre-treatment and degreasing agent technology, applied in the field of phosphorus-free water-based degreasing agent, can solve the problems affecting the coating appearance, adhesion performance and corrosion resistance, and the influence of subsequent processes, so as to achieve strong solubility and improve cleaning power , The effect of long-lasting low foam performance

Active Publication Date: 2016-02-03
NANJING KERUN LUBRICANTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they will still remain on the surface of the treated workpiece even after multiple subsequent washings, which will...

Method used

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  • Non-phosphorous water-based degreasing agent used in non-phosphorous coating pretreatment

Examples

Experimental program
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Effect test

Embodiment 1

[0015] A phosphorus-free water-based degreasing agent used in the pre-treatment of phosphorus-free painting, which is formulated from the following components by weight percentage: 20% monoethanolamine; 2% sodium gluconate, 4% sodium citrate, 2% tetrasodium edetate; 1% sodium carboxymethyl cellulose, 1% sodium lignosulfonate; 5% fatty alcohol polyoxyethylene ether, 5% isomeric alcohol polyoxyethylene ether , 5% fatty alcohol polyoxyethylene polyoxypropylene ether; 5% carboxylate, 5% alkyl glycoside; 3% polyether defoamer and water balance.

[0016] First add the required amount of water into the stirring tank, while stirring, sequentially add the required amount of monoethanolamine, sodium gluconate, sodium citrate, tetrasodium edetate, sodium carboxymethyl cellulose, lignin sulfonate Sodium acid sodium, fatty alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether, carboxylate, alkyl glycoside and polyether d...

Embodiment 2

[0018] A phosphorus-free water-based degreasing agent used in the pretreatment of phosphorus-free painting, which is prepared from the following components by weight percentage: 10% monoethanolamine, 4% triethanolamine, 4% 2-amino-2 Methyl-1-propanol; 6% sodium gluconate; 1% polyvinylpyrrolidone; 5% octylphenol ethoxylate, 5% fatty alcohol polyoxyethylene ether, 5% fatty alcohol polyoxyethylene Ethylene polyoxypropylene ether; 5% carboxylate; 0.02% polyether defoamer and the balance of water.

[0019] First add the required amount of water into the stirring tank, while stirring, sequentially add the required amount of monoethanolamine, triethanolamine, 2-amino-2methyl-1-propanol, sodium gluconate, sodium carboxymethylcellulose , octylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether, carboxylate and polyether defoamer are added to the stirring tank, and fully stirred until the mixed solution becomes uniform ...

Embodiment 3

[0020] A phosphorus-free water-based degreasing agent used in the pre-treatment of phosphorus-free painting, which is formulated from the following components by weight percentage: 5% monoethanolamine; 1% sodium gluconate; 10% alkylolamide ; 1% nonylphenol polyoxyethylene ether, 1% fatty alcohol polyoxyethylene polyoxypropylene ether; 5% alkyl glycoside; 0.01% polyether modified silicon defoamer and water balance.

[0021] First add the required amount of water into the stirring tank, while stirring, sequentially add the required amount of monoethanolamine, sodium gluconate, alkyl alcohol amide, nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether , alkyl glucoside and polyether modified silicon defoamer are added into the stirring tank, fully stirred until the mixed solution becomes uniform and transparent, and the uniform and transparent mixed solution is the phosphorus-free water-based degreasing agent of the present invention. This degrea...

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Abstract

The invention discloses a non-phosphorous water-based degreasing agent used in non-phosphorous coating pretreatment. The non-phosphorous water-based degreasing agent comprises, by weight percentage, 5-20% of organic alkali, 1-8% of a chelating agent, 1-10% of a dispersing agent, 2-15% of a surface activating agent, 1-10% of a solubilizing agent, 0.01-3% of a defoaming agent and the balance water. A non-phosphorous cleaning addition agent high in stability and good in compatibility, and the surface activating agent are added into the formula of the non-phosphorous water-based degreasing agent and act in cooperation with other components in the formula, and therefore the cleaning force of the degreasing agent is improved; and in addition, due to the fact that the solubility of all the components in the degreasing agent in water is very high, the residual degree of the components on a cleaned workpiece is also greatly lowered, and subsequent processes are not influenced. Furthermore, the degreasing agent has the durable low-foam performance when used at a normal temperature ranging from 0 DEG C to 40 DEG C.

Description

technical field [0001] The invention relates to a phosphorus-free water-based degreasing agent, in particular to a phosphorus-free water-based degreasing agent used in the pretreatment of phosphorus-free painting. Background technique [0002] The traditional phosphating surface treatment technology with a history of nearly a hundred years of industrial use is gradually being replaced by non-phosphorus surface treatment technology (silane / ceramic, etc.) due to environmental protection requirements. The degreasing and oil removal before phosphating and the residue after degreasing and washing have a certain influence on the appearance, adhesion and corrosion resistance of the phosphating film, because the thickness of the conversion film layer of the non-phosphorizing technology is less than one tenth of the thickness of the phosphating film layer. 1. Therefore, the phosphorus-free pretreatment technology has higher requirements on the cleaning power and residue of the suppor...

Claims

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Application Information

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IPC IPC(8): C23G1/00
Inventor 聂晓霖赵凯利王娟
Owner NANJING KERUN LUBRICANTS
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