A kind of automobile engine antifreeze

Abstract

The invention relates to an antifreeze article, in particular to an antifreeze liquid for an automobile engine. It is composed of the following parts by weight: 35-55 parts of diethylene glycol, 10-15 parts of sodium benzoate, 10-15 parts of sodium metasilicate, 5-10 parts of sodium hydroxide, 3-10 parts of sebacic acid, Zinc chloride 0.5-1 part, sugar acid 0.5-1.2 part, sodium benzoate 0.25-1 part, hydrolyzed polymaleic anhydride 5-8 parts, 2-hydroxybenzothiazole sodium 0.5-2.5 parts, silane coupling agent 5- 8 parts, glyceryl ether 5-10 parts, potassium borate 5-10 parts, bromothymol blue 5-10 parts, deionized water 30-40 parts. The automobile engine antifreeze fluid provided by the invention has stable performance, has anti-scale components, can effectively prevent the formation of scale, has a good anti-corrosion effect on metals, can effectively prevent the occurrence of thermal corrosion, and has a certain protective effect. At the same time, The materials used do not contain elements harmful to the environment, which can protect the environment and have important environmental protection significance.

Description

technical field [0001] The invention relates to an antifreeze article, in particular to an antifreeze liquid for an automobile engine. Background technique [0002] Antifreeze is the cooling medium of the circulating cooling system of the internal combustion engine. It has excellent performances such as antifreezing in winter, antiboiling in summer, anti-scale and anti-corrosion throughout the year. my country's research on antifreeze began in the 1970s, and products did not appear until the 1980s. Although it has developed rapidly, there is still a significant gap with similar foreign products. With the continuous improvement of environmental awareness and quality of life, people are more concerned about environmental protection and safety antifreeze demand is increasing year by year. [0003] The currently used automobile antifreeze is easy to corrode metal and produce a large amount of rust during use, which shortens the service life of the automobile engine and produces ...

AI Technical Summary

Problems solved by technology

[0003] The currently used automobile antifreeze is easy to corrode metal and produce a large amount of rust during use, which shortens the service life of the automobile engine and produces a large amount of scale. As the temperature rises, the corrosion will increase, forming a vicious circle, which will easily cause greater failures. Some antifreeze fluids contain amines, nitric acids and other substances that are harmful to the human body and the environment, and are not compatible with environmental protection.