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US 2020/0048426 A1Published application
Inorganic tubular-like particles in a polymer matrix
AssigneeNanotech Industrial Solutions, Inc.
InventorAnna Kossoy
Life of this patent
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Abstract
A composite is provided including metal chalcogenide nanotubes as the dispersed phase in a polymeric matrix, in which the polymeric matrix may be a fluoropolymer, urethane (e.g., polyurethane), sulfonic polymer, as well as epoxy and acrylic polymers for adhesive applications, such as pressure sensitive adhesives.
Claims20
A composite comprising:
- a dispersed phase of an inorganic nanotube material of the metal chalcogenide has a molecular formula MX2, where M is a metallic element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), cadmium (Cd), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Jr), platinum (Pt), gold (Au), mercury (Hg) and combinations thereof, and X is a chalcogen element selected from the group consisting of sulfur (S), selenium (Se), tellurium (Te), oxygen (O) and combinations thereof, wherein the inorganic nanotube material of the metal chalcogenide having the molecular formula MX2 is uniformly present in a polymer matrix in an amount of greater than 0.1 wt %.
A method of forming nanotubes comprising:
- positioning a solid precursor containing a metal chalcogenide and oxygen on a reactor floor that is not permeable to gas in a reaction setup equipped with a reactor;
- furnace heating the solid precursor in a reaction atmosphere comprising of hydrogen (H2), hydrogen sulfide (H2S) and nitrogen (N2);
- and
- maintaining a reaction atmosphere from 1 hour to 4 hours, wherein during the reaction period metal chalcogenide containing nanotubes are formed from the solid precursor having a diameter ranging from 10 nm to 500 nm, and a length up to 20 microns long.
1 more element
A method of forming nanotubes comprising:
- positioning a solid precursor containing a metal chalcogenide and oxygen on a reactor floor that is not permeable to gas in a reaction setup equipped with reactor and furnace;
- heating the furnace including the solid precursor to a temperature to ranging from 700° C. to 950° C. in an inert atmosphere;
- exchanging the inert atmosphere with a reaction atmosphere that is a gas selected from the group consisting of hydrogen, hydrogen sulfide (H2S) and nitrogen (N2);
- and
- maintaining a reaction atmosphere and the inert atmosphere for a reaction period ranging from 1 hour to 4 hours, wherein during the reaction period metal chalcogenide nanotubes are formed from the solid precursor.
2 more elements
A composite comprising:
- a dispersed phase of an inorganic nanolog material of the metal chalcogenide has a molecular formula MX2, where M is a metallic element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), cadmium (Cd), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), mercury (Hg) and combinations thereof, and X is a chalcogen element selected from the group consisting of sulfur (S), selenium (Se), tellurium (Te), oxygen (O) and combinations thereof, wherein the inorganic nanolog material of the metal chalcogenide having the molecular formula MX2 is uniformly present in a polymer matrix in an amount of greater than 0.1 wt %.
Dependencies are inferred from the claim text.