Preparation method of water-base efficient metal surface cleaning agent

Abstract

The invention relates to a preparation method of a water-base efficient metal surface cleaning agent. At present, the commonly used metal cleaning agent is a solvent type or a phosphorus-containing water-base cleaning agent so that the generated pollution becomes the concerned problem and the environmentally-friendly water-base efficient metal surface cleaning agent which has good functions of decontamination, rust removal and rust prevention is urgently needed to be developed. The preparation method provided by the invention comprises the following steps of: carrying out an esterification reaction of polyoxyethylene polyoxypropylene amine ether and oleic acid to obtain polyoxyethylene polyoxypropylene amine ether oleate; and then compounding the polyoxyethylene polyoxypropylene amine ether oleate with 6053, penetrant JFC, dodecyl sulfonic acid, urea, sodium silicate, sodium citrate, flake caustic soda, isopropanol, polyether L61 and water to obtain the water-base efficient metal surface cleaning agent. The water-base efficient metal surface cleaning agent, provided by the invention, has the excellent functions of dust removal, surface oil contamination removal and rust prevention, and can be widely applied to treatments including surface cleaning, rust removal, contamination removal and the like of various metal materials and work pieces before and after the various metal materials and the work pieces are processed; and meanwhile, the water-base efficient metal surface cleaning agent also has the characteristics of small pollution, no phosphorus, low corrosion on equipments and the like.

Description

technical field [0001] The invention relates to the preparation of a surfactant and the preparation of a metal surface cleaning agent, in particular to a preparation method of a water-based high-efficiency metal surface cleaning agent. Background technique [0002] Metal materials are the main materials used to process various mechanical parts and precision components. During the processing of various metal materials and parts, heavy oil, gel, electrolyte and other substances are often used and stored for a certain period of time according to the needs of the processing technology. , This will make the surface of metal materials and parts adhere to oil and other substances and cause corrosion. In order to meet the processing technology requirements of metal materials and parts, and ensure the quality, service life and performance reliability of metal products, metal materials and parts need to be decontaminated and derusted on their surfaces before processing. Especially fo...

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Problems solved by technology

[0003] In my country, most of the metal cleaning agents currently used are solvent-based or phosphorus-containing water-based cleaning agents. These products mainly have the following disadvantages: (1) The cleaning ability is limited, and dirt and rust spots cannot be effectively removed at one time; (2) The metal surface after cleaning is easy to blacken and rust again in a short time, which brings troubles to subsequent processing and especially affects the processing quality of precision components; (3) The cleaning time is long and the production efficiency is low. Generally, it takes 10~30 Minutes; (4) It is highly corrosive, and the metal surface to be cleaned has different degrees of damage and corrosion; (5) The operation process is complicated and time-consuming, and generally follows the three-step procedure of first removing oil, then removing rust, and then preventing rust; ( 6) The waste liquid after cleaning is poisonous to the human body, poor in microbial degradation, and pollutes the environment, namely water resources

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