Environment-friendly metal surface cleaning agent and preparation method thereof

Abstract

The invention relates to an environment-friendly metal surface cleaning agent and a preparation method thereof, and belongs to the technical field of cleaning agents. The cleaning agent comprises thefollowing raw materials in percentage by weight: 6-10% of an anionic surfactant, 8-15% of a nonionic surfactant, 3-5% of an ampholytic surfactant, 3-6% of an antirust agent, 6-10% of a cleaning aid, 0.1-0.3% of a defoaming agent and the balance of water, and the ampholytic surfactant is alkyl hydroxyethyl monosodium salt. Through the synergistic effect of the raw materials, the cleaning agent hasthe advantages of no toxicity, no phosphorus, high efficiency, rust prevention and environmental protection. The raw materials are dispersed in water respectively, and a the mixture a, a mixture b, amixture c, a mixture d and a mixture e are mixed, so that control of all the steps is facilitated, the cleaning agent has the advantage of being stable in preparation, and meanwhile the obtained cleaning agent has the advantage of being uniform and stable in mixing.

Description

technical field [0001] The application relates to the technical field of cleaning agents, more specifically, it relates to an environment-friendly metal surface cleaning agent and a preparation method thereof. Background technique [0002] Metal cleaning is an essential process link in the process of processing, assembly, storage and maintenance of metal parts. With the development of the automobile industry, the requirements for the safety, reliability, environmental protection and energy saving of automobiles are getting higher and higher. Therefore, the cleanliness requirements of automobile parts and assemblies have also attracted great attention. Cleanliness has become an important indicator for most auto parts manufacturers to evaluate product quality and factory verification. At the same time, with the advancement of cleaning technology and equipment in the application field, the cleaning process of various auto parts and assemblies is also constantly improving. The ...

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Problems solved by technology

[0003] The patent application literature with the publication number CN107828550A discloses a high-efficiency alkaline cleaning agent and its preparation method, including sodium silicate pentahydrate, sodium carbonate, sodium hydroxide, EDTA-2Na, and deionized water. The cleaning agent is low in cost, The cleaning effect is good, but as the temperature rises or the cleaning time prolongs, the non-ferrous metals may be corroded during the cleaning process and the rinsability will decrease. At the same time, if the pH value is relatively low, and the cleaning process Castings will also have some impact and the cleanability will be reduced

[0004] The patent document with the publication number CN107699139B discloses a water-based environment-friendly anti-rust super-finishing liquid composition and its preparation and use method, including naturally degradable nonionic or amphoteric surfactants and naturally degradable anionic surfactants , oxygen-containing solvent, metal complexing agent, boric acid, triethanolamine, silicate or molybdate, organic boric acid amide, organic long-chain acid, rust inhibitor, lubricant, abrasive, defoamer, water, pH regulator , among them, polyether phosphate potassium salt is selected as anionic surfactant, which is relatively stable under acid-base conditions, easy to biodegrade, low foam, good compatibility with non-ionic surfactants, and also has a good solubilizing effect , but because the surfactant contains organophosphorus, it has a certain impact on environmental pollution

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