Nanocomposite and method of making the same
AssigneeThe Texas A&M University System
InventorsJaime C. Grunlan, Ethan T. Iverson
Life of this patent
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Abstract
A nanocomposite includes a stack that includes at least one bilayer. Each of the bilayers independently includes an anionic layer and cationic layer. The anionic layer includes a polyanionic polymer, first particles, or a combination thereof. The cationic layer includes a polycationic polymer, second particles, or a combination thereof. The anionic layer is in planar contact with the cationic layer. In each of the bilayers, the anionic layer includes the polyanionic polymer, the cationic includes the polycationic polymer, or a combination thereof.
Claims20
A nanocomposite comprising:
- a stack comprising at least one bilayer, wherein each of the bilayers independently comprises
- an anionic layer comprising a polyanionic polymer, first particles, or a combination thereof, and
- a cationic layer comprising a polycationic polymer, second particles, or a combination thereof, wherein the anionic layer is in planar contact with the cationic layer;
- wherein in each of the bilayers, the anionic layer comprises the polyanionic polymer, the cationic layer comprises the polycationic polymer, or a combination thereof.
A nanocomposite comprising:
- a stack comprising at least two bilayers in planar contact with one another, wherein each of the bilayers independently comprises
- an anionic layer comprising polyacrylic acid and first particles comprising vermiculite, hexagonal boron nitride, or a combination thereof, and
- a cationic layer comprising polyethylenimine and second particles comprising boehmite, mica, or a combination thereof, wherein the anionic layer is in planar contact with the cationic layer;
- wherein the anionic layer and the cationic layer of the two or more bilayers form an alternating arrangement in the stack, and wherein thermal conductivity of the nanocomposite times dielectric breakdown strength of the nanocomposite at room temperature is 33 kW*MV/m2*K to 150 kW*MV/m2*K.
A method of forming a nanocomposite, the method comprising:
- treating a substrate with an anionic solution comprising polyacrylic acid and first particles comprising vermiculite, hexagonal boron nitride, or a combination thereof,
- before or after treating the substrate with the anionic solution, treating the substrate with a cationic solution comprising polyethylenimine and first particles comprising boehmite, mica, or a combination thereof, and
- repeating the treating of the substrate with the anionic solution and the treating of the substrate with the cationic solution in an alternating fashion, to form the nanocomposite comprising
- a stack comprising at least two adjacent bilayers in planar contact with one another, wherein each of the bilayers independently comprises
- an anionic layer comprising polyacrylic acid and first particles comprising vermiculite, hexagonal boron nitride, or a combination thereof, and
- a cationic layer comprising polyethylenimine and second particles comprising boehmite, mica, or a combination thereof, wherein the anionic layer is in planar contact with the cationic layer;
- wherein the anionic layer and the cationic layer of the two or more bilayers form an alternating arrangement in the stack, and wherein thermal conductivity of the nanocomposite times dielectric breakdown strength of the nanocomposite at room temperature is 33 kW*MV/m2*K to 150 kW*MV/m2*K.
Dependencies are inferred from the claim text.