Ointments are relied upon to convey agreeable execution at all conditions extending from low to high temperatures, without experiencing radical changes in their viscosity during the activity. So as to guarantee this, ointment producers depend on viscosity index improvers to convey ideal viscosity execution at all working conditions. Viscosity can be portrayed as natural obstruction of a fluid to stream, while viscosity index speaks to reaction of the fluid to changes in temperature (by and large, from 40°C to 100°C). On the off chance that an ointment displays intense change in viscosity over a scope of temperature, the grease is said to have low viscosity index.
Viscosity index improvers are polymers that are added to a lubricant in order to resist change in its viscosity with rise in the temperature. With increase in temperature, polymeric molecules of viscosity index improvers tend to stretch out, thereby increasing the internal friction of the fluid to the flow. With increase in internal friction, the fluid flows at a slower pace, thereby exhibiting increase in its viscosity. Viscosity index improvers can vary greatly, depending on their molecular structure and specific chemistry.
Increasing demand for lubricants and rising automotive sales likely to drive the market
Lubricants have become an essential part of the modern-day industry. Almost any type of operation or machining requires some sort of lubricants in order to enhance the overall efficiency of the operation. Lubricants are products that are used to reduce friction between two surfaces, thereby increasing the operational efficiency and providing wear protection to surfaces, which extends machine runtimes and prevents wear and tear of machine parts. A viscosity index improver is an essential part of every lubricant additive batch, as it helps the lubricant to maintain its viscosity when subjected to high operating temperatures.
Thus, increase in the demand for lubricants is likely to drive the demand for viscosity index improvers during the forecast period. Rapid ongoing industrialization, especially in developing economies such as BRICS, is also expected to drive the market during the forecast period. Growth of sectors, such as industrial machinery, automotive, and energy, in these countries is boosting the demand for lubricants along with their additives such as viscosity index improvers. Moreover, growth of the automotive sector is also projected to drive the market for viscosity index improvers during the forecast period.