Anti-freezing fluid

Abstract

The invention discloses anti-freeze fluid. The compositions by weight percentage of the anti-freeze fluid are: 35 to 85 percent of glycol, 0.25 to 0.06 percent of sodium molybdate, 0.4 to 0.1 percentof sodium nitrate, 3.5 to 0.8 percent of potassium hydroxide, 1.2 to 0.2 percent of 85 percent phosphoric acid, 0.3 to 0.02 percent of metyl benzotriazole, 0.5 to 0.05 percent of benzotriazole, 3.5 to0.8 percent of sebacic acid, 1.0 to 0.25 percent of undecanedioic acid, 1.0 to 0.2 percent of octanoic acid, 3.0 to 0.8 percent of sodium benzoate, 0.2 to 0.05 percent of hydrolytic-polymeric maleicanhydride, 0.003 to 0.01 percent of antifoaming agent, the balance being deionized water. The anti-freeze fluid is characterized by long effect and environmental protection, and can perform all-aroundmulti-layer protection on an automobile cooling system.

Description

technical field [0001] The invention relates to an antifreeze liquid system for all-round multi-layer protection of an automobile cooling system, in particular to an antifreeze liquid. Background technique [0002] Antifreeze is a liquid with a low freezing point. It will not freeze at low temperatures. It has good fluidity and can take away a large amount of heat generated during the operation of the engine. It is the cooling medium of the water-cooled engine of the car and is used in winter Anti-freezing and anti-boiling in summer for automobile water tanks, and can effectively prevent fouling of the cooling system, corrosion of metal parts, and protect the normal operation of the engine. The penetration rate of automobile antifreeze in developed countries has reached 100%, but only about 5% in China, and water is still used as the main cooling medium. [0003] Antifreeze is divided into inorganic type and organic type. Most of the antifreeze used in China is low-grade in...

AI Technical Summary

Problems solved by technology

However, since this kind of additives mostly use cheap silicate and borax formulas, the stability of the antifreeze is poor, and precipitation is easy to occur during use, resulting in failure of the cooling system

The formulas of organic acid antifreeze are more expensive, and their application is limited to a small amount of high-end cars.

Images