Anti-emulsification is also known as demulsification time. It is the time it takes for a lubricant to mix with water to form an emulsion under specified conditions and then to come to rest at a certain temperature. The time required to separate the lubricant from the water is expressed in minutes (min), the shorter the time, the better the anti-emulsification.

Emulsification deterioration is the thing that lubricating oil hates, emulsification destroys the oil film, produces foam, contributes to deterioration, reduces the performance of lubricating oil, and will generate soluble sludge, will block the lubrication system. If the oil is mixed with impurities, it is easy to emulsify and not good to break the emulsion. Oil emulsification, viscosity increase, resistance, will occur in accidents, but the emulsification of anti-combustion hydraulic oil, cutting oil and rolling oil is extremely necessary, they also need good emulsification stability.

The anti-emulsification of oil is one of the important properties of industrial oil, such as industrial gear oil requires extreme pressure anti-wear, anti-oxidation, rust prevention, but also good anti-emulsification, because gear oil encounter water opportunities if poor anti-emulsification, water emulsification, it reduces lubrication and fluidity and cause wear; turbine oil is often in contact with water, condensate into the oil, requiring good water separation capacity of turbine oil; Similarly, anti-wear hydraulic oil is also an important indicator of anti-emulsification The anti-emulsification of anti-wear hydraulic oil is also an important index, especially the anti-emulsification of hydraulic oil containing zinc is poor. Turbine oil inevitably contact with water vapor to form a temporary emulsion, such as poor anti-emulsification, oil and water can not be separated, will lose the lubricating effect, accelerate the wear of machine parts