Phosphorous-free environment-friendly metal surface degreasing agent and preparation method thereof

Abstract

The invention provides a phosphorous-free environment-friendly metal surface degreasing agent. The phosphorous-free environment-friendly metal surface degreasing agent is composed of the following rawmaterials of, by weight, 10-30 parts of dodecylbenzene sulfonic acid, 10-20 parts of decanol polyoxyethylene ether potassium sulfate, 5-20 parts of triethanolamine oleate, 20-30 parts of polyvinylpyrrolidone, 5-10 parts of sodium benzoate, 3-5 parts of potassium metasilicate pentahydrate, 3-5 parts of lauryl dimethyl amine oxide, 2-5 parts of nonylphenol polyoxyethylene ether, 1-2 parts of sodiumnitrite, 3-5 parts of fatty alcohol-polyoxyethylene ether and 1-5 parts of defoaming agents. According to the phosphorous-free environment-friendly metal surface degreasing agent in the scheme, a metal workpiece is treated through the phosphorous-free environment-friendly metal surface degreasing agent, full play can be given to the emulsification function of the phosphorous-free environment-friendly metal surface degreasing agent, the thorough degreasing purpose is achieved, and the requirement for the pretreatment quality of the following process is met.

Description

technical field [0001] The invention relates to the technical field of environmental protection technology, in particular to a non-phosphorus green environmental protection metal surface degreasing agent and a preparation method thereof. Background technique [0002] In the process of machinery manufacturing, due to contact with coolant and engine oil, the outer surface of metal parts is often covered with grease, oily dirt, etc., and it is necessary to use a degreasing agent to remove oil on the surface of metal parts. At present, most of the degreaser products on the market are corrosive to metal materials, and long-term use will affect the appearance quality of metal parts. [0003] In addition, traditional degreasing agents are mostly high-foaming surfactant combinations. While obtaining a good decontamination effect, the surfactant components are often adsorbed on the surface of metal parts. Therefore, after working for a period of time, the emulsifier in the bath It w...

AI Technical Summary

Problems solved by technology

At present, most of the degreasing agent products on the market are corrosive to metal materials, and long-term use will affect the appearance quality of metal parts

[0003] In addition, traditional degreasing agents are mostly high-foaming surfactant combinations. While obtaining a good decontamination effect, the surfactant components are often adsorbed on the surface of metal parts. Therefore, after working for a period of time, the emulsifier in the bath It will gradually lose its emulsifying properties, and the emulsified oil will gradually accumulate in the bath, but it will be adsorbed to the surface of the metal parts that are subsequently put in, reducing the decontamination effect

[0004] These degreasing agents in the prior art also have problems such as high production cost, poor degreasing efficiency, and serious environmental pollution, which seriously affect the popularization and use of degreasing agent products.