We have developed a range of novel organic polymer friction modifiers which offer significant benefits when compared with existing similar organic friction modifiers.
Friction modifiers are molecules that can change the frictional properties of a substrate. Friction modifiers are most commonly used in lubricants including industrial and automotive oils, where they are used to reduce the friction between metal surfaces. Friction modifiers interact with the metal surface to reduce friction. Inorganic friction modifiers chemically react with the metallic surface while organic friction modifiers, like the solutions we offer, work by physical adsorption to the surface.
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What are common friction modifier chemistries?
Friction modifiers can be created from many different classes of chemistries. There are three main types used in lubricants: inorganic, organic and organic polymeric. The table below compares these three classes.
|Friction modifier class||Examples||Pros||Cons|
|MoDTC (molybdenum dithiocarbamate); ZDDP (Zinc dialkyldithiophosphates)||Excellent sliding friction reduction||Depletes in use: friction reduction potentially lost in aged oil, requires higher temperatures to activate than organic|
|Organic mono molecular||GMO (Glyceryl monooleate); Oleamide;
Priolube™ 2040 (Saturated polyol ester)
|Does not deplete in use||Not as potent as MoDTC; minimal benefits in siding friction|
|Organic polymeric||Perfad 3000 series||Outstanding friction reduction in mixed sliding -rolling
Thermally and oxidatively stable
|More sensitive to the final formulation than mono molecular organics|
What are organic polymeric friction modifiers?
We have developed a range of novel organic polymer friction modifiers. These are similar to existing organic friction modifiers, but they are then linked together within a larger molecule. The polymer structure helps to produce coherent layers of FM on the metal surfaces with each anchor point reinforced by another on either side.
What benefits do our polymeric friction modifiers bring?
- An outstanding ability to reduce the coefficient of friction of lubricants to levels unachievable with conventional organic friction modifiers
- Excellent film forming properties which offers the potential to reduce wear and to improve durability
- More oxidatively stable than conventional organic friction modifiers
- Effective at low dose rates, typically 0.1% - 0.5%.
Selecting the right friction modifier
Friction modifier selection is based not only on the desired outcome, but also on the other additives used within the lubricant system. Additives within the lubricant complete for access to the metal surface, and detergents and dispersants in particular are polar, and can trap FMs within the bulk of the lubricant, limiting access to the surface. Careful selection of FMs are needed for the best performance in a particular lubricant formulation. If you would like us to help you formulate your next generation of lubricants, please contact us.
Selected academic papers of interest
We regularly contribute to academic and industry papers. A small selection are referenced below:
Interactions between organic friction modifier additives,
Tribology International, Volume 151, 2020, 106438,
Benjamin M. Fry, Mang Yin Chui, Gareth Moody, Janet S.S. Wong,
Adsorption of organic friction modifier additives
Effect of surface cleaning on performance of organic friction modifiers
Tribology Transactions, 2020, 63(2), pp. 305-313
The performance and mechanisms of organic polymeric friction modifiers in low viscosity engine oils
Moody, G., Eastwood, J., Ueno, K.
SAE Technical Papers, 2019, (December)
The influence of friction modifiers in fully formulated motorcycle engine oils
Gillespie, D., Moody, G., Viadas, A.
Additives for passenger car motor oilsHigh-performing friction modifiers, base oils and surface repair additives
Enhancing fuel economy of passenger cars and helping original equipment manufacturers meet emissions legislation.Read more
Additives for heavy duty diesel engine oilsSpeciality friction modifiers, base oils and surface repair additives
Enhancing specifications by improving fuel economy and oxidation stability whilst reducing wear and deposits.Read more
Additives for industrial gear oilsHigh-performance polyalkylene glycol (PAG) and ester technologies for gear lubrication
Maximise gear performance, operating efficiency and reliability and reduce gear wear across various applications.Read more