Antifreeze fluid for automobile and blending process thereof

Abstract

The invention discloses antifreeze fluid for an automobile and a blending process thereof. The blending process comprises the steps of firstly, preparing first solution from benzotriazole and ethanediol; preparing second solution from sodium silicate and water, and adding to the first solution to obtain the first mixed solution; then preparing third solution from sodium ethylene diamine tetracetate or silicate stabilizer and water, and adding the third solution to the first mixed solution to obtain the second mixed solution; preparing fourth solution from borax and water, and adding the fourth solution to the second mixed solution to obtain third mixed solution; then preparing fifth solution from sodium benzoate and water, and adding the fifth solution to the third mixed solution to obtain the fourth mixed solution; and finally preparing sixth solution from an organic silicon defoamer, a fluorescent yellow pigment and water, and adding the sixth solution to the fourth mixed solution to prepare the antifreeze fluid product for the automobile. The antifreeze fluid for the automobile has the advantages of being stable in high temperature, comprehensive in protection effect, simple to blend, small in environmental harm, and low in cost.

Description

technical field [0001] The invention relates to the technical field of automobile antifreeze, in particular to an automobile antifreeze and a blending process thereof. Background technique [0002] The development of engine coolant has experienced roughly two main types. The first type: methanol or ethanol, monohydric alcohol and water are the earliest base fluids, the freezing point meets the requirements, and the low-temperature engine startability is guaranteed; the second type: ethylene glycol or dihydric alcohol Ethylene glycol and water are used as the base liquid, and quantitative corrosion inhibitors are added to ensure the boiling point, freezing point, and corrosion resistance. However, ethylene glycol is harmful to the environment, and glycerol base liquid is also used in cooling liquids. Although it has a good environmental protection effect, it has not been popularized because of its high cost and low-temperature cooling effect is not as good as ethylene glycol....

AI Technical Summary

Problems solved by technology

[0004] Inorganic salt type corrosion inhibitors were mainly used in the 1990s, but due to the toxicity of various additives in the inorganic salt system, the environment will be polluted after the cooling liquid is discarded, and the inorganic salt type cooling liquid system is unstable, resulting in precipitation and turbidity, etc. The problem is that the inorganic salt formula is not mature until the corresponding stabilizer appears in the later stage