Some of you might have heard the phrase viscosity index improvers and you're wondering desperately what it is. Some of you might even be wondering why you should care.
Viscosity index improvers are chemicals added to lubricating oils and greases to affect their flow properties. Specifically, viscosity index improvers are used to lower the viscosity index of oil or grease and thereby improve its ability to flow under high shear rate (very high rotation) conditions when the lubricant is in an internal gear drive. More specific definitions may be found in ISO 3104-2, "Correlation between kinematic viscosity at 104R, viscosity index, the additive package, and performance in high-speed machinery."
The viscosity index improver is a polymer that improves the rheological properties (flow behaviour) of crude oil and heavy oils. The most important function of the Viscosity Index Improvers is to enhance the flowability of bitumen, particularly into the pipelines, without adversely affecting its oil content. This viscosity index improver also has improved thermal properties allowing it to flow more easily, which means that they are widely used in processing plants and tankers.
As a new affiliate marketer, you're probably wondering what importance viscosity index improvers play in your marketing efforts. Viscosity Index Improvers, also known as Rinse Aid, are cleaners and detergents that are added to water before you wash your clothes. These products were developed to fight the dullness of laundry and provide more protection from dirt and stains. There is a wide range of product types each with its own benefit.
What Is Viscosity Index Improvers?
Viscosity index improvers are compounds that are added to lubricants to improve their performance. The viscosity of a fluid is its resistance to flow. Viscosity can be measured by the time it takes for a fluid to flow through a capillary tube at a certain temperature, or by the force required to move the fluid through the tube at a given rate.
Viscosity decreases with increasing temperature, which means it is easier to pump fluids that are hot than those that are cold. However, viscosity also increases with decreasing temperature, which means it is harder to pump fluids that are cold than those that are hot.
The viscosity of an oil depends on how thick it is and how much "internal friction" there is within the liquid itself. Internal friction can be thought of as how strongly molecules bind together inside the oil — if they bind strongly enough together, they will form droplets within the liquid that cannot slide against each other easily. This causes drag while pumping through pipes or spinning bearings, which reduces efficiency and leads to heat build-up in engines and other mechanical systems.
How Do You Care About Viscosity Index?
The viscosity index (VI) is the most widely used tool to assess the quality of a lubricant. It is a single number that relates to the lubricating ability of fluid and it ranges from 0 (very poor) to 150 (excellent).
The purpose of VI tests is to measure how well a lubricant performs when subjected to high-temperature operation. The higher the VI, the more resistant it will be to thermal breakdown. Lubricants with very high VI values are often referred to as "high-performance" or "synthetic" oils because they are able to operate at higher temperatures without becoming too thick. In addition to their superior thermal stability, high-
performance oils also offer other benefits over conventional mineral-based oils. They tend to be less viscous at operating temperature and may have better viscosity stability over time than conventional oils do. This can result in better fuel economy and fewer oil changes over time.