Graphite and Molybdenum Disulfide Dry Lubricant-News-Dry Lubricant And Oil Additives Suppliers

Graphite and Molybdenum Disulfide Dry Lubricant

2023-05-05 18:40:02  News

Dry lubricants or solid lubricants, such as graphite and molybdenum disulfide (MoS2), are able to reduce friction between sliding surfaces without the need for a liquid oil medium. These materials can operate at temperatures higher than those of liquid and oil-based lubricants, which is important in many industrial applications.

Low Friction Coefficients: 0.1

Molybdenum disulfide (MoS2) is a naturally occurring black colored, crystalline, slippery substance that readily transfers to and adheres to other solid surfaces with which it comes into contact. Like graphite, it is a soft, non-elastic crystalline form of carbon that occurs naturally in metamorphic rocks.

The chemistry of this material is fascinating and provides a unique combination of properties. The crystal structure of molybdenum disulfide is hexagonal and consists of molecules of sulfur that are linked together in a covalent bond by weak atomic interactions.

In contrast to liquid lubricants that cause high friction, energy loss and below-par performance, molybdenum disulfide provides a bonded coating to an exposed surface which prevents the formation of oil and water vapor in oxidizing environments and protects against wear and corrosion. It can be applied in various ways including physical deposition of vapor, spraying and burnishing.

Anti-Galling & Seizing:

Because molybdenum disulfide powder is easily applied to sliding surfaces, it is ideal for use in applications where a non-stick or slippery coating is desired. Its adherence properties also make it an excellent anti-galling agent. The powder is typically mixed with a binder and a carrier to produce a bonded coating.