The Board of Trustees of the University of Arkansas
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Akerman LLP
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128
초록▼
A dielectric nanolubricant composition is provided. The dielectric nanolubricant composition includes a nano-engineered lubricant additive dispersed in a base. The nano-engineered lubricant additive may include a plurality of solid lubricant nanostructures having an open-ended architecture and an or
A dielectric nanolubricant composition is provided. The dielectric nanolubricant composition includes a nano-engineered lubricant additive dispersed in a base. The nano-engineered lubricant additive may include a plurality of solid lubricant nanostructures having an open-ended architecture and an organic, inorganic, and/or polymeric medium intercalated in the nanostructures and/or encapsulate nanostructures. The base may include a grease or oil such as silicone grease or oil, lithium complex grease, lithium grease, calcium sulfonate grease, silica thickened perfluoropolyether (PFPE) grease or PFPE oil, for example. This dielectric nanolubricant composition provides better corrosion and water resistance, high dielectric strength, longer material life, more inert chemistries, better surface protection and asperity penetration, no curing, no staining, and environmentally friendly, compared to current products in the market.
대표청구항▼
1. A dielectric nanolubricant composition, the composition comprising: a nano-engineered lubricant additive dispersed in a base,wherein the nano-engineered lubricant additive comprises a plurality of solid lubricant nanostructures having an open-ended architecture and a medium selected from an organ
1. A dielectric nanolubricant composition, the composition comprising: a nano-engineered lubricant additive dispersed in a base,wherein the nano-engineered lubricant additive comprises a plurality of solid lubricant nanostructures having an open-ended architecture and a medium selected from an organic medium, inorganic medium, polymeric medium, or combination thereof,wherein the medium intercalates and/or encapsulates the nanostructures, wherein the base comprises a grease or oil, and wherein the composition is dielectric. 2. The composition of claim 1, wherein at least a portion of the nanostructures have an average particle dimension of about a few tenths of a micron or less. 3. The composition of claim 1, wherein the nanostructures comprise a material selected from the group consisting of polytetrafluoroethylene (PTFE), cerium fluoride, zinc oxide, silica, fluorinated carbon, hexagonal boron nitride, calcium carbonate, calcium fluoride, zirconium oxide, and combinations thereof. 4. The composition of claim 1, wherein the nanostructures comprise a material selected from the group consisting of hexagonal boron nitride, polytetrafluorethylene (PTFE), calcium carbonate, zirconium oxide, and combinations thereof. 5. The composition of claim 1, wherein the nanostructures comprise calcium fluoride or zirconium oxide. 6. The composition of claim 1, wherein the base comprises at least one of a silicone oil, silicone grease, lithium complex grease, lithium grease, calcium sulfonate grease, silica thickened perfluoropolyether (PFPE) grease, or perfluoropolyether (PFPE) oil. 7. The composition of claim 1, wherein the nanostructures comprise polytetrafluoroethylene (PTFE), calcium carbonate, silica, or zirconium oxide. 8. The composition of claim 1, wherein the organic and/or inorganic and/or polymeric medium comprises at least one material selected from the group consisting of hexane, heptane, mineral spirit, odorless mineral spirit, acetone, hydrocarbon oils, mineral oil, paraffin oils, synthetic oils, petroleum greases, hydrocarbon greases, lithium based greases, fluoroether based greases, silicones, silicone based grease or a combination thereof. 9. The composition of claim 1, wherein the composition comprises the nano-engineered lubricant additive in an amount of 20% by weight or less. 10. The composition of claim 1, further comprising an organic and/or inorganic medium for dispensing. 11. The composition of claim 10, wherein the organic and/or inorganic medium comprises at least one of heptane, hexane, mineral spirits, odorless mineral spirit, acetone, naphtha, ethyl acetate, toluene, ethylene glycol, isopropanol alcohol, methanol, ethanol, or MEK. 12. The composition of claim 11, wherein the composition is in a form of a spray coating. 13. The composition of claim 1, wherein the composition is in a form of a gel. 14. The composition of claim 1, wherein the composition has an NLGI grade from #1 to #3. 15. The composition of claim 1, wherein the composition comprises from between 10% to 95% by weight of organic and/or inorganic greases comprising silicone based grease, lithium complex grease, lithium grease, silica based perfluoropolyether (PFPE) grease, or calcium sulfonate grease. 16. A method of making a dielectric nanolubricant composition, the method comprising: formulating a nano-engineered lubricant additive comprising: chemo-mechanical milling a solid lubricant feed and a medium selected from an organic medium, inorganic medium, polymeric medium, or combination thereof to produce a plurality of solid lubricant nanostructures having an open-ended architecture, wherein the medium intercalates and/or encapsulates the nanostructures; andblending the nano-engineered lubricant additive with a base to disperse the nano-engineered lubricant additive in the base, wherein the base comprises a grease or oil, and wherein the composition is dielectric. 17. The method of claim 16, wherein at least a portion of the nanostructures have an average particle dimension of about a few tenths of a micron or less. 18. The method of claim 16, wherein the nanostructures comprise a material selected from the group consisting of polytetrafluoroethylene (PTFE), cerium fluoride, zinc oxide, silica, fluorinated carbon, hexagonal boron nitride, calcium carbonate, calcium fluoride, zirconium oxide, and combinations thereof. 19. The method of claim 16, wherein the nanostructures comprise a material selected from the group consisting of hexagonal boron nitride, polytetrafluorethylene (PTFE), calcium carbonate, zirconium oxide, and combinations thereof. 20. The method of claim 16, wherein the nanostructures comprise calcium fluoride or zirconium oxide. 21. The method of claim 16, wherein the base comprises at least one of a silicone oil, silicone grease, lithium complex grease, lithium grease, calcium sulfonate grease, silica thickened perfluoropolyether (PFPE) grease, or perfluoropolyether (PFPE) oil. 22. The method of claim 16, wherein the nanostructures comprise polytetrafluoroethylene (PTFE), calcium carbonate, silica, or zirconium oxide. 23. The method of claim 16, wherein the organic and/or inorganic and/or polymeric medium comprises at least one material selected from the group consisting of hexane, heptane, mineral spirit, odorless mineral spirit, acetone, hydrocarbon oils, mineral oil, paraffin oils, synthetic oils, petroleum greases, hydrocarbon greases, lithium based greases, fluoroether based greases, silicones, silicone based grease or a combination thereof. 24. The method of claim 16, wherein the composition comprises the nano-engineered lubricant additive in an amount of 20% by weight or less. 25. The method of claim 16, further comprising an organic and/or inorganic medium for dispensing. 26. The method of claim 25, wherein the organic and/or inorganic medium comprises at least one of heptane, hexane, mineral spirits, odorless mineral spirit, acetone, naphtha, ethyl acetate, toluene, ethylene glycol, isopropanol alcohol, methanol, ethanol, or MEK. 27. The method of claim 26, wherein the composition is in a form of a spray coating. 28. The method of claim 16, wherein the composition is in a form of a gel. 29. The method of claim 16, wherein the composition has an NLGI grade from #1 to #3. 30. The method of claim 16, wherein the composition comprises from between 10% to 95% by weight of organic and/or inorganic greases comprising silicone based grease, lithium complex grease, lithium grease, silica based perfluoropolyether (PFPE) grease, or calcium sulfonate grease.
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