Lubricant: Learn about different types of lubricants used

Learn about different types of lubricants used in pharmaceutical formulations, such as boundary, fluid film, liquid, and solid lubricants. Find out their properties, mechanisms, uses, examples, and selection criteria. A lubricant (sometimes shortened to lube) is a substance that helps to reduce friction between surfaces in mutual contact , which ultimately reduces the heat generated when the surfaces move. Lubricant In the Roman era, lubricants had been based on oil and rapeseed oil, as well as animal fats. It is the life – blood of the machine, keeping the vital parts in perfect condition and prolonging the life of machine. It saves the machine and its parts from corrosion, wear and tear and it minimizes friction. Definition of Lubricant A lubricant is a substance having an oily property available in the form of fluid, semi – fluid or solid state. or A lubricant is substance introduced ... The lubricants are defined as the chemical substances which reduce friction between two sliding/moving metal surfaces and thereby reduce wear and tear of machines .The lubricant keeps the two surfaces apart ,thus the frictional resistance reduces . The process of reducing frictional resistance between moving/sliding surface ,by introduction of lubricants in between them is called lubrication . Hydrodynamic Lubrication : Fluid film lubrication is done by introducing sufficiently thick layer ...