Environment-friendly water-based metal cleaner and preparation method thereof

Abstract

The invention discloses an environment-friendly water-based metal cleaner and a preparation method thereof. The environment-friendly water-based metal cleaner is composed of the following components of, by mass, 5-30% of a nonionic surfactant without APEO, 0.1-5% of a cationic surfactant, 0.1-15% of an inorganic washing assistant, 0.3-5% of a chelating agent, 0.5-6% of a corrosion inhibitor, 0.5-7% of an anti-redeposition agent, 0.5-3% of a penetrating agent, 0.1-8% of an alcohol ether solvent, and the balance water. The preparation method of the environment-friendly water-based metal cleanercomprises the following steps that the inorganic washing assistant and the chelating agent are added in the water and evenly mixed; then the nonionic surfactant without the APEO, the cationic surfactant, the corrosion inhibitor, the anti-redeposition agent, the penetrating agent and the alcohol ether solvent are added and evenly mixed; and the environment-friendly water-based metal cleaner is obtained. The environment-friendly water-based metal cleaner is free of phosphorus, nitrite and the APEO, good in anti-rust performance, good in stability, free of stimulation, safe, environmentally friendly and simple in preparation technology.

Description

technical field [0001] The invention relates to an environment-friendly water-based metal cleaning agent and a preparation method thereof. Background technique [0002] Metal materials are easy to adhere to various dirt during processing, storage, transportation and use, and will oxidize and rust, affecting the cleanliness of the metal surface. Cleaning is required, and metal cleaning agents have emerged as the times require. In recent decades, has developed rapidly. Traditional solvent-based metal cleaning agents contain a large amount of toxic and harmful solvents, which are very harmful to the ecological environment and also endanger the health of operators. They have been gradually replaced by water-based metal cleaning agents. Water-based metal cleaning agents use water as a solvent, which is safer and more environmentally friendly than solvent-based metal cleaning agents. However, phosphorus-containing additives and APEO-containing surfactants are often added to exist...

AI Technical Summary

Problems solved by technology

Water-based metal cleaning agents use water as a solvent, which is safer and more environmentally friendly than solvent-based metal cleaning agents. However, phosphorus-containing additives and APEO-containing surfactants are often added to existing water-based metal cleaning agents. Phosphorus-containing additives will cause Eutrophication of water body, APEO-containing surfactants are also potentially harmful to the environment

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