Viscosity modifiers 2020 examples simple explanation viscosity index improver for modifying. What is viscosity modifiers?
Viscosity modifiers (VM) are polymeric molecules that are sensitive to temperature. At low temperatures, the molecule chain contracts and does not impact the fluid viscosity. At high temperatures, the chain relaxes and an increase in viscosity occurs.
Viscosity modifiers (VM) are used to reduce the influence of temperature on the viscosity of lubricants - Also known as Viscosity Index Improvers (VII)
Keep in mind that as temperature increases, the viscosity decreases. The addition of modifiers will only slow down the rate at which the viscosity decreases.
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• Viscosity Modifiers (A Simple Explanation ...