Vehicle engine fluid

Abstract

The invention discloses a vehicle engine fluid, relating to an engine fluid for a vehicle engine cooling system. The vehicle engine fluid is composed of glycol, sodium stannate, sebacic acid, adipic acid, benzotriazole, sodium benzoate, sodium salicylate, 1-carboxyl-2-hexyl-5-(7-carboxyl)-hexamethylene-3-alkene, hydrolyzed polymaleic anhydride, silane coupling agent KH-550, bis-imidazoline, dye, sodium hydroxide, deionzied water and the like. The vehicle engine fluid has the advantages of good corrosion effect, stable property, excellent corrosion inhibition property, no precipitate and no toxicity, and is not easy to volatilize, can be well absorbed on the surface of metal so as to form an absorption film, and can effectively inhibit corrosion of an antifreeze solution on soldering tin; and the selected additive is cheap and available and has good economic benefits and social benefits, and the like. The vehicle engine fluid can be widely applied to a cooling system of a vehicle engine, especially is used as a vehicle antifreeze solution in a low-temperature region.

Description

Technical field [0001] The invention belongs to the technical field of antifreeze, and specifically relates to an antifreeze for an automobile engine cooling system. Background technique [0002] Antifreeze (also known as coolant and antifreeze) is the cooling medium of the internal combustion engine's circulating cooling system. It has excellent properties such as antifreeze in winter, anti-boiling in summer, anti-scaling throughout the year, and anti-corrosion. The research on antifreeze in our country began in the 1970s, and products only appeared in the 1980s. Although the development is rapid, there is still a significant gap between similar foreign products. With the continuous improvement of environmental protection awareness and quality of life, people's demand for environmental protection and safe antifreeze is increasing year by year. In recent years, due to the increasing use of aluminum metal components in engine systems, such as aluminum cylinders, water pumps, wate...

AI Technical Summary

Problems solved by technology

The main disadvantages of this antifreeze are: ① Sodium molybdate is a toxic compound, which will cause certain damage to the human body. Some types of antifreeze also limit its addition amount; ② sodium molybdate is expensive, its dosage is as high as 0.3-0.05%, and the cost is high; ③ isooctanoic acid is an organic compound with an odor, adding this substance will make Antifreeze has peculiar smell; ④The anti-corrosion effect on aluminum metal parts is poor, which cannot meet the needs of modern automobile development

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