Fluorinated ZDDP as a superior Lubricant
Fluorinated ZDDP derivatives have superior lubricating properties relative to ZDDP, and can be used at levels approaching 10-times less in oil lubricants to achieve the same level of wear protection. These are produced by reacting ZDDP with fluorinated transition metal compounds (MFx where M is Fe, Ti, Zr, Al). Fluorine can enter the structure either directly bonded to the phosphorous atom or on the carbon chain of the alkyl groups of the ZDDP. The fluorinated products of ZDDP can form strong bonds with both the metal surface as well as combine with the protective tribofilm. These tribofilms can be formed under conditions simulating the conditions in an engine. If the mechanical integrity of the films is much stronger in the presence of fluorine then it is possible to significantly reduce the amount of phosphorous and sulfur in lubricating oils.
Deposition of "PTFE-like" compositions on Tribosurfaces
Initial PRO studies also show that transition metal fluoride nanoparticles can act as catalysts to help deposit highly adherent tribofilms on the surface of metals. These MFx compounds where M is a transition metal ion serves the purpose of a catalyst for reacting with and binding low molecular weight PTFE to metal surfaces, and also helps in the decomposition of ZDDP to form tribofilms on the surface. These nanoparticles, by virtue of their high specific surface area, are very reactive and can assist in the formation of organofluorophosphate and organoflurothiophosphate tribofilms with enhanced tribological properties, in particular, low friction coatings. If the mechanical integrity of the films is much stronger in the presence of fluorine then it is possible to significantly reduce the amount of phosphorous and sulfur in lubricating oils
These new compositions are designed to completely replace ZDDP as wear reducing additives in engine oils. The approach here is to develop more PTFE-like tribofilms on metal surfaces, which are "self-healing" as a result of the "catalytic" reactions described above using metal fluoride catalysts.
Fluorinated ZDDP derivatives have superior lubricating properties relative to ZDDP, and can be used at levels approaching 10-times less in oil lubricants to achieve the same level of wear protection. These are produced by reacting ZDDP with fluorinated transition metal compounds (MFx where M is Fe, Ti, Zr, Al). Fluorine can enter the structure either directly bonded to the phosphorous atom or on the carbon chain of the alkyl groups of the ZDDP. The fluorinated products of ZDDP can form strong bonds with both the metal surface as well as combine with the protective tribofilm. These tribofilms can be formed under conditions simulating the conditions in an engine. If the mechanical integrity of the films is much stronger in the presence of fluorine then it is possible to significantly reduce the amount of phosphorous and sulfur in lubricating oils.
Deposition of "PTFE-like" compositions on Tribosurfaces
Initial PRO studies also show that transition metal fluoride nanoparticles can act as catalysts to help deposit highly adherent tribofilms on the surface of metals. These MFx compounds where M is a transition metal ion serves the purpose of a catalyst for reacting with and binding low molecular weight PTFE to metal surfaces, and also helps in the decomposition of ZDDP to form tribofilms on the surface. These nanoparticles, by virtue of their high specific surface area, are very reactive and can assist in the formation of organofluorophosphate and organoflurothiophosphate tribofilms with enhanced tribological properties, in particular, low friction coatings. If the mechanical integrity of the films is much stronger in the presence of fluorine then it is possible to significantly reduce the amount of phosphorous and sulfur in lubricating oils
These new compositions are designed to completely replace ZDDP as wear reducing additives in engine oils. The approach here is to develop more PTFE-like tribofilms on metal surfaces, which are "self-healing" as a result of the "catalytic" reactions described above using metal fluoride catalysts.
