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Neutral non-phosphorus degreasing agent and preparation method thereof

A degreasing agent and neutral technology, applied in the field of neutral non-phosphorus degreasing agent and its preparation, can solve the problems of the ecological environment impact of sodium tripolyphosphate, high cost of waste water treatment, high human body irritation, etc., and can enhance the cleaning ability , Improve the cleaning ability, the effect of rapid decontamination

Inactive Publication Date: 2016-10-26
陈逸涵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Phosphorus-containing degreasing agent has the advantages of low cost and good degreasing effect, but the sodium tripolyphosphate in the formula has caused serious impact on the ecological environment and has no market competitiveness.
Alkaline degreasing agents are commonly used in production. Although the price is cheap and the degreasing effect is good, its main component is sodium hydroxide, which will corrode the workpiece, and consume a lot of energy and waste water treatment.
Another commonly used phosphorus-free degreasing agent contains alkylphenol ethyl ether. This phosphorus-free degreasing agent contains toxic substances octylphenol polyoxyethylene ether and nonylphenol polyoxyethylene ether, which are highly irritating to the human body. And it is easy to generate harmful substance alkylphenol, so it is not suitable for production line

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A neutral phosphorus-free degreasing agent, consisting of the following raw materials in parts by weight: 20 parts of isomeric tridecyl alcohol polyoxyethylene ether, 0.1 part of defoamer, 5 parts of sodium gluconate, 15 parts of sodium carbonate, 3 parts of polyethylene Pyrrolidone, 50 parts of ethanol, 50 parts of water.

[0021] The preparation of neutral phosphorus-free degreasing agent comprises the following steps:

[0022] (1) Mix water and ethanol uniformly in a ratio of 1:1 to obtain 100 parts of mixed solvent;

[0023] (2) 15 parts of sodium carbonate are added in the mixed solvent of step (1), stir until dissolving;

[0024] (3) Add 5 parts of sodium gluconate into the mixed solution of step (2), and stir until completely dissolved;

[0025] (4) Add 20 parts of isomeric tridecyl alcohol polyoxyethylene ether, 0.1 part of defoamer, and 3 parts of polyvinylpyrrolidone to the mixed solution in step (3) in sequence, and stir until completely dissolved to obtain...

Embodiment 2

[0027] A neutral phosphorus-free degreasing agent, consisting of the following raw materials in parts by weight: 20 parts of tridecyl isomeric alcohol ether, 0.2 part of defoamer, 5 parts of sodium gluconate, 10 parts of sodium carbonate, 3 parts of polyvinylpyrrolidone, 50 parts of ethanol, 50 parts of water.

[0028] The preparation of neutral phosphorus-free degreasing agent comprises the following steps:

[0029] (1) Mix water and ethanol uniformly in a ratio of 1:1 to obtain 100 parts of mixed solvent;

[0030] (2) 10 parts of sodium carbonate are added in the mixed solvent of step (1), stir until dissolving;

[0031] (3) Add 5 parts of sodium gluconate into the mixed solution of step (2), and stir until completely dissolved;

[0032] (4) Add 20 parts of tridecyl isomeric alcohol ether, 0.2 parts of defoamer, and 3 parts of polyvinylpyrrolidone to the mixed solution in step (3) in sequence, and stir until completely dissolved to obtain a neutral phosphorus-free degreasi...

Embodiment 3

[0034] A neutral phosphorus-free degreasing agent, consisting of the following raw materials in parts by weight: 10 parts of isomeric tridecyl alcohol polyoxyethylene ether, 10 parts of tridecyl isomeric alcohol ether, 0.4 part of defoamer, 3 parts of sodium gluconate , 15 parts of sodium carbonate, 1 part of polyvinylpyrrolidone, 25 parts of ethanol, 75 parts of water.

[0035] The preparation of neutral phosphorus-free degreasing agent comprises the following steps:

[0036] (1) Mix water and ethanol uniformly in a ratio of 3:1 to obtain 100 parts of mixed solvent;

[0037] (2) 15 parts of sodium carbonate are added in the mixed solvent of step (1), stir until dissolving;

[0038] (3) Add 3 parts of sodium gluconate into the mixed solution of step (2), and stir until completely dissolved;

[0039] (4) Add 10 parts of isomeric tridecyl alcohol polyoxyethylene ethers, 10 parts of tridecyl isomeric alcohol ethers, 0.4 parts of defoamers, 1 part of polyvinylpyrrolidone to the ...

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PUM

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Abstract

The invention discloses a neutral non-phosphorus degreasing agent and a preparation method thereof, and relates to the technical field of metal material surface cleaning agents. The neutral non-phosphorus degreasing agent consists of the following raw materials: 10-25 parts of a surfactant, 0.1-1 part of a de-foaming agent, 1-5 parts of a chelating agent, 5-15 parts of an inorganic detergent assistant, 0-3 parts of an additive and 100 parts of a mixed solvent. The raw materials are non-toxic, are good in water solubility, are small in harm to environment and an operator, and are free of damage to equipment; and the preparation method is simple, and the neutral non-phosphorus degreasing agent is strong in detergency power, is low in turbidity point and has the degreasing effect being 99%.

Description

technical field [0001] The invention relates to the field of metal material surface cleaning agents, in particular to a neutral phosphorus-free degreasing agent and a preparation method thereof. Background technique [0002] During the production and preparation of metal workpieces, the surface is often exposed to oil stains. It is necessary to use an efficient cleaning agent to completely remove the oil stains on the metal surface, so as not to affect the subsequent process. [0003] Phosphorus-containing degreasing agents have the advantages of low cost and good degreasing effect, but the sodium tripolyphosphate in the formula has caused serious impact on the ecological environment and has no market competitiveness. Alkaline degreasing agents are commonly used in production. Although the price is cheap and the degreasing effect is good, its main component is sodium hydroxide, which will corrode the workpiece, and it consumes a lot of energy and waste water treatment costs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/24
CPCC23G1/24
Inventor 陈逸涵
Owner 陈逸涵
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