Environment-friendly engine coolant

Abstract

The invention discloses an environment-friendly engine coolant which is composed of following raw materials, by weight: 80-85 parts of ethylene glycol, 15-20 parts of propylene glycol, 2-5 parts of magnesium silicate, 5-10 parts of sodium silicate, 1-3 parts of potassium sorbate, 0.01-0.05 parts of sodium benzoate, 0.02-0.04 parts of decanedioic acid, 0.1-0.3 parts of benzotriazole, 0.05-0.08 parts of mercaptobenzothiazole, 0.1-0.5 parts of sodium hydroxide, 0.5-1 part of hydrolyzed polymaleic anhydride, 2-5 parts of carboxymethylcellulose, and 15-20 parts of deionized water. The engine coolant is low in freezing point and high in boiling point, is excellent in metal anti-corrosion property, anti-cavitation property and anti-scaling property, is safe and environment-friendly and is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of engine cooling, and in particular relates to an environment-friendly engine coolant. Background technique [0002] Coolant, also known as antifreeze, antifreeze, etc., is the cooling medium of the automobile circulating cooling system. Its main function is to protect the normal and good operation of the engine. It circulates in the engine water tank to achieve antifreeze, antiboiling, antirust and anticorrosion effects. , with the development of the automobile industry, the performance requirements of the engine are getting higher and higher, not only the coolant is required to have a lower freezing point and a higher boiling point, it has better anti-fouling properties, and it is also harmless to the environment. Inferior coolants on the market contain phosphate and nitrite, which are easy to corrode the metal parts of the engine cooling system and are harmful to the human body and the environment. Con...

AI Technical Summary

Problems solved by technology

[0002] Coolant, also known as antifreeze, antifreeze, etc., is the cooling medium of the automobile circulating cooling system. Its main function is to protect the normal and good operation of the engine. It circulates in the engine water tank to achieve antifreeze, antiboiling, antirust and anticorrosion effects. , with the development of the automobile industry, the performance requirements of the engine are getting higher and higher, not only the coolant is required to have a lower freezing point and a higher boiling point, it has better anti-fouling properties, and it is also harmless to the environment. Inferior coolants on the market contain phosphate and nitrite, which are easy to corrode the metal parts of the engine cooling system and are harmful to the human body and the environment