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Neutral degreasing agent and preparation method

A degreasing agent and neutral technology, which is applied in the field of neutral degreasing agent and preparation, and can solve problems such as damage to the surface of the substrate, excessive surface of the metal sheet, and greater influence of the chemical formation process.

Inactive Publication Date: 2020-11-27
NIPPON PAINT CHONGQING CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the degreasing process of metal plates with weak acid and alkali resistance, the use of alkaline or acidic degreasing agents will cause excessive or slight corrosion on the surface of the metal plate, damage the surface of the substrate, and have a great impact on the subsequent chemical formation process and affect the product. final quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preferred embodiment 1, a kind of neutral degreasing agent is characterized in that: take water as solvent, and add cleanser, softener, dispersant, surfactant, defoamer and acidity regulator, its weight percent is: clean 3-8% softener, 0.1-0.8% softener, 0.1-0.8% dispersant, 1-3.5% acidity regulator, 2-7% surfactant, 0.1-0.5% defoamer and the balance of water, of which , the cleaning agent is sodium gluconate 3%, the softener is EDTA-4Na 0.1%, the dispersant is sodium tripolyphosphate 0.1%, the acidity regulator is sodium dihydrogen phosphate 1%, the The surfactant is alkylphenol and aliphatic polyether, coco-based quaternary ammonium salt, the content of alkylphenol and aliphatic polyether in the surfactant is 65%, and the content of coco-based quaternary ammonium salt in the surfactant The defoamer is 35%, and the defoamer is silicone and polyether, wherein the content of silicone is 70% in the defoamer, and the content of polyether in the defoamer is 30%.

Embodiment 2

[0019] Preferred embodiment 2, a kind of neutral degreasing agent is characterized in that: take water as solvent, and add cleanser, softening agent, dispersant, tensio-active agent, defoamer and acidity regulator, its weight percent is: cleaning 3-8% softener, 0.1-0.8% softener, 0.1-0.8% dispersant, 1-3.5% acidity regulator, 2-7% surfactant, 0.1-0.5% defoamer and the balance of water, of which , the cleaning agent is sodium gluconate 4%, the softener is EDTA-4Na 0.3%, the dispersant is sodium tripolyphosphate 0.3%, the acidity regulator is sodium dihydrogen phosphate 1.6%, the The surfactants are alkylphenols, aliphatic polyethers, and cocoyl quaternary ammonium salts. The content of alkylphenol and aliphatic polyether in surfactant is 68%, and the content of coconut oil base quaternary ammonium salt in surfactant is 32%, and described defoamer is organosilicon, polyether, wherein, organosilicon The antifoaming agent content is 72%, and the polyether antifoaming agent conten...

Embodiment 3

[0020] Preferred embodiment 3, a kind of neutral degreasing agent is characterized in that: take water as solvent, and add cleaning agent, softening agent, dispersant, tensio-active agent, defoamer and acidity regulator, its weight percent is: cleaning 3-8% softener, 0.1-0.8% softener, 0.1-0.8% dispersant, 1-3.5% acidity regulator, 2-7% surfactant, 0.1-0.5% defoamer and the balance of water, of which , the cleaning agent is sodium gluconate 5%, the softener is 0.5% EDTA-4Na, the dispersant is sodium tripolyphosphate 0.5%, the acidity regulator is sodium dihydrogen phosphate 1.7%, the The surfactants are alkylphenols, aliphatic polyethers, and coco-based quaternary ammonium salts. Alkylphenols and aliphatic polyethers account for 70% of the surfactant content, and coco-based quaternary ammonium salts account for 70% of the surfactant content. The defoamer is 30%, and the defoamer is silicone and polyether, wherein the content of silicone is 76% of the defoamer, and the content ...

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Abstract

The invention relates to the technical field of degreasing agents, in particular to a neutral degreasing agent. The neutral degreasing agent is characterized in that water is used as a solvent, and acleaning agent, a softening agent, a dispersing agent, a surface active agent, a defoaming agent and an acidity adjusting agent are added; and the neutral degreasing agent comprises the following components in percentages by weight: 3%-8% of the cleaning agent, 0.1%-0.8% of the softening agent, 0.1%-0.8% of the dispersing agent, 1%-3.5% of the acidity adjusting agent, 2%-7% of the surface active agent, 0.1%-0.5% of the defoaming agent and the balance of water. The neutral degreasing agent prepared from sodium gluconate, EDTA-4Na, sodium tripolyphosphate, sodium dihydrogen phosphate, alkylphenol, aliphatic polyether, coco-quaternary ammonium salt, organic silicon and polyether is free of corrosion to the surface of a base material in a using process, and has high cleaning force, the problems that acid resistance and alkali resistances are poor, and corrosion is easily caused can be solved, and etching damage to the surface of the base material is relieved.

Description

technical field [0001] The invention relates to the technical field of degreasing agents, in particular to a neutral degreasing agent and a preparation method. Background technique [0002] In industries such as automobiles, home appliances, and light industry, metal sheets are widely used because of their excellent anti-corrosion properties. In the pretreatment process of the metal sheet, it is necessary to clean the residual rolling oil and iron powder on the surface of the metal sheet to obtain a bright and clear coating with good bonding force and excellent corrosion resistance. During the degreasing process of metal plates with weak acid and alkali resistance, the use of alkaline or acidic degreasing agents will cause excessive or slight corrosion on the surface of the metal plate, damage the surface of the substrate, and have a great impact on the subsequent chemical formation process and affect the product. final quality. Moreover, because the degreasing agent is co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/24
CPCC23G1/24
Inventor 陈刚袁能志唐继权
Owner NIPPON PAINT CHONGQING CHEM CO LTD
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