UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST | Matter42 Literature
Patent
Atlas literature
Patent
US 12,195,340 B2
UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST
Lei Zhai, Matthew McInnis
University of Central Florida Research Foundation, Inc., Orlando, FL (US)·Jan. 14, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
performance graph
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making a composite of graphene oxide powder or graphite oxide powder and a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder into the host powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing a mixture formed by dispersing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the step of cold compressing the mixture uses a pressure of 1 kPa, and wherein the graphene oxide powder or graph-ite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 10 nm during the step of cold compressing the mixture without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit, wherein the step of cold compressing the first powderized biscuit uses a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an addi-tional extrudable material; compression molding with heating or injection molding the second powderized biscuit with the additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 1, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
The method of claim 1, wherein the host powder consists of polyurethane and the composite is of about 1 to 5 weight % graphite oxide or graphene oxide.
A method of making a graphene oxide or graphite oxide composite from a cold compression molded powder con-sisting of: dispersing a graphene oxide powder or a graphite oxide powder into a host powder to form a composite powder, wherein the graphene oxide powder comprises gra-phene oxide flakes or the graphite oxide powder com-prises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing the composite powder formed by dis-persing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit at a pressure of 1 kPa, wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the step of cold compressing B₂ the composite powder without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; and compression molding with heating or injection molding the second powderized biscuit with an additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 4, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
A method of making a composite powder of a graphene oxide powder or graphite oxide powder in a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane, into the host powder to form a composite powder; a first cold compression molding of the composite powder formed by the dispersing of the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the first cold compression uses a pressure of 1 kPa, and wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each gra-phene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the first cold compres-sion molding without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; a second cold compression molding of the first powder-ized biscuit into a second biscuit, wherein the second cold compression is at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an extrud-able material to form the composite powder; wherein the method improves the dispersion and exfolia-tion of the graphene oxide powder or graphite oxide powder in the composite powder. ∗ ∗ ∗ ∗ ∗
Materials
Materials described outside the worked examples.
graphene oxide powder
Filler/Additive (Graphene Oxide Flakes)
graphite oxide powder
Filler/Additive (Graphite Oxide Flakes)
Process steps
Additional fabrication and treatment steps described in the patent.
1
Solventless Dry Mixing And Cold Compression Molding
Step 1
Process details
step 1:dispersing graphene oxide or graphite oxide powder into host powder (polyurethane) by jar mixing, optionally with ball bearings
step 2:first cold compression at 1 kPa to form first biscuit; induces mechanical exfoliation reducing flake thickness to <10 nm without changing surface area
step 3:crushing/powderizing/grinding first biscuit into first powderized biscuit
step 4:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST
Lei Zhai, Matthew McInnis
University of Central Florida Research Foundation, Inc., Orlando, FL (US)·Jan. 14, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
performance graph
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making a composite of graphene oxide powder or graphite oxide powder and a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder into the host powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing a mixture formed by dispersing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the step of cold compressing the mixture uses a pressure of 1 kPa, and wherein the graphene oxide powder or graph-ite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 10 nm during the step of cold compressing the mixture without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit, wherein the step of cold compressing the first powderized biscuit uses a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an addi-tional extrudable material; compression molding with heating or injection molding the second powderized biscuit with the additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 1, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
The method of claim 1, wherein the host powder consists of polyurethane and the composite is of about 1 to 5 weight % graphite oxide or graphene oxide.
A method of making a graphene oxide or graphite oxide composite from a cold compression molded powder con-sisting of: dispersing a graphene oxide powder or a graphite oxide powder into a host powder to form a composite powder, wherein the graphene oxide powder comprises gra-phene oxide flakes or the graphite oxide powder com-prises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing the composite powder formed by dis-persing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit at a pressure of 1 kPa, wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the step of cold compressing B₂ the composite powder without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; and compression molding with heating or injection molding the second powderized biscuit with an additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 4, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
A method of making a composite powder of a graphene oxide powder or graphite oxide powder in a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane, into the host powder to form a composite powder; a first cold compression molding of the composite powder formed by the dispersing of the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the first cold compression uses a pressure of 1 kPa, and wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each gra-phene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the first cold compres-sion molding without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; a second cold compression molding of the first powder-ized biscuit into a second biscuit, wherein the second cold compression is at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an extrud-able material to form the composite powder; wherein the method improves the dispersion and exfolia-tion of the graphene oxide powder or graphite oxide powder in the composite powder. ∗ ∗ ∗ ∗ ∗
Materials
Materials described outside the worked examples.
graphene oxide powder
Filler/Additive (Graphene Oxide Flakes)
graphite oxide powder
Filler/Additive (Graphite Oxide Flakes)
Process steps
Additional fabrication and treatment steps described in the patent.
1
Solventless Dry Mixing And Cold Compression Molding
Step 1
Process details
step 1:dispersing graphene oxide or graphite oxide powder into host powder (polyurethane) by jar mixing, optionally with ball bearings
step 2:first cold compression at 1 kPa to form first biscuit; induces mechanical exfoliation reducing flake thickness to <10 nm without changing surface area
step 3:crushing/powderizing/grinding first biscuit into first powderized biscuit
step 4:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST
Lei Zhai, Matthew McInnis
University of Central Florida Research Foundation, Inc., Orlando, FL (US)·Jan. 14, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
performance graph
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making a composite of graphene oxide powder or graphite oxide powder and a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder into the host powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing a mixture formed by dispersing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the step of cold compressing the mixture uses a pressure of 1 kPa, and wherein the graphene oxide powder or graph-ite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 10 nm during the step of cold compressing the mixture without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit, wherein the step of cold compressing the first powderized biscuit uses a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an addi-tional extrudable material; compression molding with heating or injection molding the second powderized biscuit with the additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 1, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
The method of claim 1, wherein the host powder consists of polyurethane and the composite is of about 1 to 5 weight % graphite oxide or graphene oxide.
A method of making a graphene oxide or graphite oxide composite from a cold compression molded powder con-sisting of: dispersing a graphene oxide powder or a graphite oxide powder into a host powder to form a composite powder, wherein the graphene oxide powder comprises gra-phene oxide flakes or the graphite oxide powder com-prises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing the composite powder formed by dis-persing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit at a pressure of 1 kPa, wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the step of cold compressing B₂ the composite powder without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; and compression molding with heating or injection molding the second powderized biscuit with an additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 4, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
A method of making a composite powder of a graphene oxide powder or graphite oxide powder in a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane, into the host powder to form a composite powder; a first cold compression molding of the composite powder formed by the dispersing of the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the first cold compression uses a pressure of 1 kPa, and wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each gra-phene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the first cold compres-sion molding without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; a second cold compression molding of the first powder-ized biscuit into a second biscuit, wherein the second cold compression is at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an extrud-able material to form the composite powder; wherein the method improves the dispersion and exfolia-tion of the graphene oxide powder or graphite oxide powder in the composite powder. ∗ ∗ ∗ ∗ ∗
Materials
Materials described outside the worked examples.
graphene oxide powder
Filler/Additive (Graphene Oxide Flakes)
graphite oxide powder
Filler/Additive (Graphite Oxide Flakes)
Process steps
Additional fabrication and treatment steps described in the patent.
1
Solventless Dry Mixing And Cold Compression Molding
Step 1
Process details
step 1:dispersing graphene oxide or graphite oxide powder into host powder (polyurethane) by jar mixing, optionally with ball bearings
step 2:first cold compression at 1 kPa to form first biscuit; induces mechanical exfoliation reducing flake thickness to <10 nm without changing surface area
step 3:crushing/powderizing/grinding first biscuit into first powderized biscuit
step 4:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
UNIFORM DISPERSING OF GRAPHENE NANOPARTICLES IN A HOST
Lei Zhai, Matthew McInnis
University of Central Florida Research Foundation, Inc., Orlando, FL (US)·Jan. 14, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
performance graph
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making a composite of graphene oxide powder or graphite oxide powder and a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder into the host powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing a mixture formed by dispersing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the step of cold compressing the mixture uses a pressure of 1 kPa, and wherein the graphene oxide powder or graph-ite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 10 nm during the step of cold compressing the mixture without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit, wherein the step of cold compressing the first powderized biscuit uses a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an addi-tional extrudable material; compression molding with heating or injection molding the second powderized biscuit with the additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 1, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
The method of claim 1, wherein the host powder consists of polyurethane and the composite is of about 1 to 5 weight % graphite oxide or graphene oxide.
A method of making a graphene oxide or graphite oxide composite from a cold compression molded powder con-sisting of: dispersing a graphene oxide powder or a graphite oxide powder into a host powder to form a composite powder, wherein the graphene oxide powder comprises gra-phene oxide flakes or the graphite oxide powder com-prises graphite oxide flakes, and wherein the host powder consists of polyurethane; cold compressing the composite powder formed by dis-persing the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit at a pressure of 1 kPa, wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each graphene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the step of cold compressing B₂ the composite powder without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; cold compressing the first powderized biscuit into a second biscuit at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; and compression molding with heating or injection molding the second powderized biscuit with an additional extrudable material to form the composite; and shaping the composite into a specific shape.
The method of claim 4, wherein the step of dispersing the graphene oxide powder or graphite oxide powder into the host powder to form the composite powder is performed in the presence of ball bearings to break up clumps or agglomerations.
A method of making a composite powder of a graphene oxide powder or graphite oxide powder in a host powder by a solventless process consisting of: dispersing the graphene oxide powder or graphite oxide powder, wherein the graphene oxide powder comprises graphene oxide flakes or the graphite oxide powder comprises graphite oxide flakes, and wherein the host powder consists of polyurethane, into the host powder to form a composite powder; a first cold compression molding of the composite powder formed by the dispersing of the graphene oxide powder or graphite oxide powder into the host powder to form a first biscuit, wherein the first cold compression uses a pressure of 1 kPa, and wherein the graphene oxide powder or graphite oxide powder is exfoliated by the cold compressing to reduce a thickness of each gra-phene oxide flake or a thickness of each graphite oxide flake to less than 10 nm during the first cold compres-sion molding without changing the surface area of each graphene oxide flake or graphite oxide flake; crushing, powderizing, or grinding the first biscuit into a first powderized biscuit; a second cold compression molding of the first powder-ized biscuit into a second biscuit, wherein the second cold compression is at a pressure of 10 kPa; crushing, powderizing or grinding the second biscuit into a second powderized biscuit; combining the second powderized biscuit with an extrud-able material to form the composite powder; wherein the method improves the dispersion and exfolia-tion of the graphene oxide powder or graphite oxide powder in the composite powder. ∗ ∗ ∗ ∗ ∗
Materials
Materials described outside the worked examples.
graphene oxide powder
Filler/Additive (Graphene Oxide Flakes)
graphite oxide powder
Filler/Additive (Graphite Oxide Flakes)
Process steps
Additional fabrication and treatment steps described in the patent.
1
Solventless Dry Mixing And Cold Compression Molding
Step 1
Process details
step 1:dispersing graphene oxide or graphite oxide powder into host powder (polyurethane) by jar mixing, optionally with ball bearings
step 2:first cold compression at 1 kPa to form first biscuit; induces mechanical exfoliation reducing flake thickness to <10 nm without changing surface area
step 3:crushing/powderizing/grinding first biscuit into first powderized biscuit
step 4:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
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FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
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FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
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FIG. 1 shows the electrical performance of the invention in two different plastics, polyvinylidene difluoride (PVDF) and polyurethane. DESCRIPTION OF THE …
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