Lubricating oil additives are a type of chemical substance added to lubricating oil, whose main function is to improve the performance and reliability of lubricating oil, and can play a role in sterilization, reducing wear, rust prevention, and increasing boiling point during use. Lubricating oil additives generally include cleaning agents, anti-wear agents, anti-corrosion agents, antioxidants, inhibitors, defoamers, moisture suppressants, rare oils, etc. Now, we will introduce these lubricating oil additives.

What are the types of lubricant additives

1、 Cleaning agent: Cleaning agents can effectively remove carbon smoke particles, stains, and dirt deposited on the surface of mechanical components, delay oil filtration, and reduce cleaning costs; These substances generally include molybdenum based cleaners, ethylene oxide based cleaners, aromatic organic acid based cleaners, benzenesulfonate based trace metal cleaners, etc.

2、 Anti wear agent: Anti wear agents mainly reduce the wear and loss of lubricating oil during use, delay material wear, and extend the service life of lubricating oil. Antiwear agents generally include ferrocene based anti-wear agents, silicon-based friction agents, titanium based anti-wear agents, friction agent acids, polyether ester anti-wear agents, aromatic hydrocarbon oxidants, etc.

3、 Anti corrosion agent: Anti corrosion agents mainly improve the corrosiveness of oil, inhibit material corrosion caused by metal carbides, water, and non-metallic foreign substances in lubricating oil, and effectively prevent failures caused by corrosion of lubrication system components and pipeline parts. Corrosion inhibitors mainly include phosphate ester corrosion inhibitors, diphenyl chloride corrosion inhibitors, fluorine-containing corrosion inhibitors, silicon-based corrosion inhibitors, etc.

4、 Antioxidants: Antioxidants mainly inhibit the aging of lubricating oil, help improve the antioxidant properties of lubricating oil, and extend the service life of lubricating oil. General antioxidants include undecyl peroxide antioxidants, phosphate based antioxidants, sulfur based antioxidants, aromatic peroxide antioxidants, etc.

5、 Inhibitors: Inhibitors mainly prevent the proliferation of biological pollutants in lubricating oil and can suppress adverse effects on the lubrication system, helping to maintain the normal operation of the lubrication system. Inhibitors generally include thiazoline inhibitors, aromatic imidazolidine inhibitors, sulfonamide inhibitors, etc.

6、 Anti foaming agent: Anti foaming agent mainly inhibits the generation of bubbles in lubricating oil, helps the normal operation of lubricating oil, improves the stability of oil operation, and inhibits the generation of bubbles and the aggregation and expansion of bubbles in oil, thereby increasing the anti splash performance of lubricating oil. Anti foaming agents generally include oil based compound anti foaming agents, metal aromatic complex anti foaming agents, oil-based water-based compound anti foaming agents, etc.

7、 Moisture suppressant: Moisture suppressant can effectively adsorb various impurities in lubricating oil, fix these impurities, and effectively suppress the moisture content in lubricating oil. It can not only reduce the possibility of mechanical failure caused by moisture, but also improve the lubrication performance of the lubrication system. Generally, water suppressants include ferrocene chelating agents, fluorine-containing agents, aromatic imidazolidines, and organic acid salt agents.