Patent
US 9,944,774GRAPHENE FUNCTIONALIZED CARBON NANOTUBE POLYMER COMPOSITES AND METHODS FOR THEIR PREPARATION AND USE
Ramaprabhu SUNDARA
US
Copyright © 2026 Matter42. All rights reserved.
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US 9,944,774Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Here carbon nanotubes were functionalized using conducting graphene molecules. In particular, graphite oxide and metal alloy hydride particles were …
FIG. 2.
FIG. 3. DETAILED DESCRIPTION 15 [0008 1 In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the …
FIG. 4 illustrates X-ray diffractograms 400 of graphite oxide (GO), graphene carbon nanotubes composite and for carbon nanotubes represented generally by …
FIG. 5 illustrates X-ray diffractograms 500 20 of graphene functionalized carbon nanotube PVDF composite and pure PVDF composite that are represented generally …
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
FIG. 7 is a high resolution FESEM image of the graphene carbon nanotubes composite nanofi l ler of
FIG. 8 is a graphical representation 800 of microstrain (pe) measured for the graphene functionalized carbon nanotube PVDF composite. Moreover, F IG. 9 is a …
FIG. 9 is a graphical representation of a change in resistance measured under applied mechanical strain for the graphene functionalized carbon nanotube PVDF …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdr aw n) A nieth od o f forni ing a graplhene fun ctio n alized carbon nanotub e poly mer com posi te, the method com prisi ng: dispos ing conducti ng fu nctional mole cul es arou nd a p lur ali ty of carbo n na notUbes to f orm a composite nanolill er: and embeddi iw th e composite n ano fille r with in a poly mer material to form the g raphene finc tionalized carbon nanotube poly m er composite. Withdrawn
(Wi thdrawn) I h e method of claim 1, where in the conducting functional molecule s comprise graphene molecules. Withdrawn
3. (Withdrawn) I le method of claim I, w here in the co n duct ing fu nct i ona l molecul es for ni at le ast one g raphene lay er. Withdrawn
(W ithdrauN n) [he m ethod of clai m 1, wherein di sposing conductin g Functional molecu les com prises: reactin g g raphit e oxide and a plurality of m etal alloy hydride particles to form a g r aph ite oxide- m etal all o y hydride mixture; and heati ng the g raphite oxide-metal alloy h ydride mixture in a ch em ical vapor d eposition (CVD) chamber i n presence of a ca r bon-conta ining mate rial to f orm the composite nano ti l er.
5. Th e method of claim 4, wherein the plurality of metal alloy hydride particles comprise nic kel m etal hydride, iron metal hydride, cobalt me tal hydride, or co mb inations th ereo f. Withdrawn
(Withdrawn-Currently Am ende d) I h e method of claim 4, further co mnrising i ntrod ucing hydro g en g as (ljl within the CVD chamber while h e ati ng the graphite oxide-metal alloy hydride mixture. wherein a fl ow rate of hydrogen gas is about 40 s ee m to about 70 se em. Currently amended
1 3. (Withdr awn)'I he method o l claim 4, w herein the g raphite oxide-metal alloy hydride mixture is heated to a temperature o f about 700 'C to about I 100C. Withdrawn
The method of clai im 4, wherein the plurality o F m eta l alloy hydride particles comprise le rrocene (Fe(Cd 1 s)j. Withdrawn
Canceled
T he method of cla i m 4, whe rein the carbon containin g material comprises acetylene (('211), methane (Ci 1), ethane (C II 1), b utane (C₁₁ m), propane (C31s) or combinations thereo f. Withdrawn
(Withdra w n) The method o f c laim 8, wherein a f low rate of the carbon containing mat e rial w ithin the CV D chamber is about 40 standard cubi c centimeters per minu te (s ee m) to about 60 sceLim. Withdrawn
1 1. (Canc elled) Canceled
(Cancell ed) Canceled
The method o ' clai m 1, w herein em bedd ing the c omposite nan ofiller comprises: dispersing the composite na nohi11er in a so lven t to form a composite nanolie 11 r so lu tion: dispersing a poly me r material in the solvent to fo rm a polymer solu tion: and ul trasoni c atin g the co m posite na nof ll1cr s olution a n d the polynmer sol Ltiol to F orm a ho mogzenous solution: and c asting the ho mogeno us s olution to form the graphene f unc tional i/i ed carbon na notube polymer composite. Withdrawn
(Withdrawn-Currently Amended) The method of claim 14. wherein the solvent comprises dimethyllrmamide (DMF). N-m e thyl-2-pyrrolido ne (NMP). dimethyl sul f ide (I) MS), aceto ne, or water, or co mbi natio n s th e reo f. Currently amended
T he method of clai m 14, wherein the polymer material comprises a thermosettin g polymer, a thermoplastic polymer, or combinations thereof. Withdrawn
I h e method of cla im 15, wh e rein the polymer material co mprises polyvinyli dene f luoride (lPVDF), po ly styrene. pol yethylen e te rep hi thalate (P E T), polyethylene oxide (P E[K), po lyvi nylpyrrolidone (PVP). poly eth er ether ketone (I IEK), nylon 6, or combinations the reof. Withdrawn
1 8. (C urrently Amended) A graphe n e t unctional i z ed carbon nanotube polymer composite c omprising: at least one graphen e layer disposed ar ound a plurality of carbon nanotub e s to form a composite nano l iller of g raphe n e f unctionali zed ca rbon na n otub e. wherein the composite nanoliller comprises about 94% to about 95% of carbon and about 5% to about 6% of oxvzen; and a polymer material e mb edd irig the co m posit e nanofiller. x herein the graphene functionalized carbon nanotube polymer composite has a strain gauce factor of about 20. Currently amended
(Pre viously Pres e nted) T he grap he ne iunc tional iz ed carbon nanotube pol yme r comp osi te of claim 18, wherein the c o mpo site nano f iller of graphen e fui ctionali ze d carbon nanotub e is formed by he ati ng g raph i te oxide-metal alloy-hydride mixture in the presence of a carbon containi ng material, and the g r aphite oxide- m etal a 1lo y-hydri d e mixture is a product of graphite oxide and a plurality o lf me tal alloy particles, and the plurality of metal alloy particles comprise 4 nickel metal hydride, iron metal hydride, cobalt metal hydride, or or g anometa llic compounds, or combinations thereof. Previously presented
21. I he graphene lunctionali/e d carbon nanotUbe polymer composite ol claim 18, w her e in the plurality of carbon nanotu b es comprise s ingle w al led carbon na n otubes, multi W alle d carbon nanotu bes, or combinations thereo f. Original
The grap hene lImetionali/e d carbon nanot ube polymer composite of claim 18, wherein a dia mete r of each of the plurality o1 g raph e ne lne tionali/ed carbon n an otubes is about 60 nm to about 70 nm. Original
27 T he g raphene t unc tionali z ed carbon nan o tube p olym er co mposi te of claim 18, wher e in the composit e nano lille r forms a sensor. an actuator, or combinations thereof. Previously presented
32. (Pr evi ousl y Presented) The g rap hene functio nal i7 ed carbon nanotu be polymer composite of claim 18, wher e in the graphene layer comprises a thickness of about 20 nm around any of the plural ity of carbon nanotub es. Previously presented
Canceled
22. The g raphen e fu nctionali/ed carbon nanot ube polymer composite o Ilai m 1 8, where in the p olymer material comprises a thermosetti ng polymer, a thermoplastic polymer. or combinations thereof. Original
Ihe g-raphene lunc tionali zed carbon nanotub e polymer composite of c laim 22, w herein the polymer ma ter i al compri se s pol v vinylid e ne fl uoride (PVD). polystyrene, polyethylene ter cph thalate (P E T), polyethylene oxide (P 1 (I), poly v inylpyrrol i don e (PVP), pol y ether ether ketone (PEEK), nylon 6, or combinations thereof. Original
(Withdrawn-Currently Am ende d) T he electromechanical strain sensor of claim 26. wherein the composite nano l iller comprises ab out 1 % to about [[3 %. 113 % graphene by w eight. Currently amended
3 0. (Withdra w n) The electromecha n ica l strain s ensor o f c laim 26, wher e in a chemical resistance of the electromechanical strain s ensor wh en s ubjected to an acid medium is about 98 %. Withdrawn
31. The electromechanical strain sensor of claim 26, wherein the strain sensor is an isotropic sensor. Withdrawn
33. Canceled
T he graphene l'unc tion aIiz ed carbon nanotube polymer composite o f c lai m 20, w herein the carbon containing material comprises acetylene (C Ii), methane (C 1 4), ethane (C: 1.), butane (CiI u), propane %-C 4 4j,§Cl₁₄ or combinations thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
graphene functionalized carbon nanotube polymer composite electromechanical strain sensor
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Strain Gauge Factor | 20 dimensionless | graphene functionalized carbon nanotube PVDF composite |
Composition Carbon Content | 94–95 wt% |
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US 9,944,774Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Here carbon nanotubes were functionalized using conducting graphene molecules. In particular, graphite oxide and metal alloy hydride particles were …
FIG. 2.
FIG. 3. DETAILED DESCRIPTION 15 [0008 1 In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the …
FIG. 4 illustrates X-ray diffractograms 400 of graphite oxide (GO), graphene carbon nanotubes composite and for carbon nanotubes represented generally by …
FIG. 5 illustrates X-ray diffractograms 500 20 of graphene functionalized carbon nanotube PVDF composite and pure PVDF composite that are represented generally …
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
FIG. 7 is a high resolution FESEM image of the graphene carbon nanotubes composite nanofi l ler of
FIG. 8 is a graphical representation 800 of microstrain (pe) measured for the graphene functionalized carbon nanotube PVDF composite. Moreover, F IG. 9 is a …
FIG. 9 is a graphical representation of a change in resistance measured under applied mechanical strain for the graphene functionalized carbon nanotube PVDF …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdr aw n) A nieth od o f forni ing a graplhene fun ctio n alized carbon nanotub e poly mer com posi te, the method com prisi ng: dispos ing conducti ng fu nctional mole cul es arou nd a p lur ali ty of carbo n na notUbes to f orm a composite nanolill er: and embeddi iw th e composite n ano fille r with in a poly mer material to form the g raphene finc tionalized carbon nanotube poly m er composite. Withdrawn
(Wi thdrawn) I h e method of claim 1, where in the conducting functional molecule s comprise graphene molecules. Withdrawn
3. (Withdrawn) I le method of claim I, w here in the co n duct ing fu nct i ona l molecul es for ni at le ast one g raphene lay er. Withdrawn
(W ithdrauN n) [he m ethod of clai m 1, wherein di sposing conductin g Functional molecu les com prises: reactin g g raphit e oxide and a plurality of m etal alloy hydride particles to form a g r aph ite oxide- m etal all o y hydride mixture; and heati ng the g raphite oxide-metal alloy h ydride mixture in a ch em ical vapor d eposition (CVD) chamber i n presence of a ca r bon-conta ining mate rial to f orm the composite nano ti l er.
5. Th e method of claim 4, wherein the plurality of metal alloy hydride particles comprise nic kel m etal hydride, iron metal hydride, cobalt me tal hydride, or co mb inations th ereo f. Withdrawn
(Withdrawn-Currently Am ende d) I h e method of claim 4, further co mnrising i ntrod ucing hydro g en g as (ljl within the CVD chamber while h e ati ng the graphite oxide-metal alloy hydride mixture. wherein a fl ow rate of hydrogen gas is about 40 s ee m to about 70 se em. Currently amended
1 3. (Withdr awn)'I he method o l claim 4, w herein the g raphite oxide-metal alloy hydride mixture is heated to a temperature o f about 700 'C to about I 100C. Withdrawn
The method of clai im 4, wherein the plurality o F m eta l alloy hydride particles comprise le rrocene (Fe(Cd 1 s)j. Withdrawn
Canceled
T he method of cla i m 4, whe rein the carbon containin g material comprises acetylene (('211), methane (Ci 1), ethane (C II 1), b utane (C₁₁ m), propane (C31s) or combinations thereo f. Withdrawn
(Withdra w n) The method o f c laim 8, wherein a f low rate of the carbon containing mat e rial w ithin the CV D chamber is about 40 standard cubi c centimeters per minu te (s ee m) to about 60 sceLim. Withdrawn
1 1. (Canc elled) Canceled
(Cancell ed) Canceled
The method o ' clai m 1, w herein em bedd ing the c omposite nan ofiller comprises: dispersing the composite na nohi11er in a so lven t to form a composite nanolie 11 r so lu tion: dispersing a poly me r material in the solvent to fo rm a polymer solu tion: and ul trasoni c atin g the co m posite na nof ll1cr s olution a n d the polynmer sol Ltiol to F orm a ho mogzenous solution: and c asting the ho mogeno us s olution to form the graphene f unc tional i/i ed carbon na notube polymer composite. Withdrawn
(Withdrawn-Currently Amended) The method of claim 14. wherein the solvent comprises dimethyllrmamide (DMF). N-m e thyl-2-pyrrolido ne (NMP). dimethyl sul f ide (I) MS), aceto ne, or water, or co mbi natio n s th e reo f. Currently amended
T he method of clai m 14, wherein the polymer material comprises a thermosettin g polymer, a thermoplastic polymer, or combinations thereof. Withdrawn
I h e method of cla im 15, wh e rein the polymer material co mprises polyvinyli dene f luoride (lPVDF), po ly styrene. pol yethylen e te rep hi thalate (P E T), polyethylene oxide (P E[K), po lyvi nylpyrrolidone (PVP). poly eth er ether ketone (I IEK), nylon 6, or combinations the reof. Withdrawn
1 8. (C urrently Amended) A graphe n e t unctional i z ed carbon nanotube polymer composite c omprising: at least one graphen e layer disposed ar ound a plurality of carbon nanotub e s to form a composite nano l iller of g raphe n e f unctionali zed ca rbon na n otub e. wherein the composite nanoliller comprises about 94% to about 95% of carbon and about 5% to about 6% of oxvzen; and a polymer material e mb edd irig the co m posit e nanofiller. x herein the graphene functionalized carbon nanotube polymer composite has a strain gauce factor of about 20. Currently amended
(Pre viously Pres e nted) T he grap he ne iunc tional iz ed carbon nanotube pol yme r comp osi te of claim 18, wherein the c o mpo site nano f iller of graphen e fui ctionali ze d carbon nanotub e is formed by he ati ng g raph i te oxide-metal alloy-hydride mixture in the presence of a carbon containi ng material, and the g r aphite oxide- m etal a 1lo y-hydri d e mixture is a product of graphite oxide and a plurality o lf me tal alloy particles, and the plurality of metal alloy particles comprise 4 nickel metal hydride, iron metal hydride, cobalt metal hydride, or or g anometa llic compounds, or combinations thereof. Previously presented
21. I he graphene lunctionali/e d carbon nanotUbe polymer composite ol claim 18, w her e in the plurality of carbon nanotu b es comprise s ingle w al led carbon na n otubes, multi W alle d carbon nanotu bes, or combinations thereo f. Original
The grap hene lImetionali/e d carbon nanot ube polymer composite of claim 18, wherein a dia mete r of each of the plurality o1 g raph e ne lne tionali/ed carbon n an otubes is about 60 nm to about 70 nm. Original
27 T he g raphene t unc tionali z ed carbon nan o tube p olym er co mposi te of claim 18, wher e in the composit e nano lille r forms a sensor. an actuator, or combinations thereof. Previously presented
32. (Pr evi ousl y Presented) The g rap hene functio nal i7 ed carbon nanotu be polymer composite of claim 18, wher e in the graphene layer comprises a thickness of about 20 nm around any of the plural ity of carbon nanotub es. Previously presented
Canceled
22. The g raphen e fu nctionali/ed carbon nanot ube polymer composite o Ilai m 1 8, where in the p olymer material comprises a thermosetti ng polymer, a thermoplastic polymer. or combinations thereof. Original
Ihe g-raphene lunc tionali zed carbon nanotub e polymer composite of c laim 22, w herein the polymer ma ter i al compri se s pol v vinylid e ne fl uoride (PVD). polystyrene, polyethylene ter cph thalate (P E T), polyethylene oxide (P 1 (I), poly v inylpyrrol i don e (PVP), pol y ether ether ketone (PEEK), nylon 6, or combinations thereof. Original
(Withdrawn-Currently Am ende d) T he electromechanical strain sensor of claim 26. wherein the composite nano l iller comprises ab out 1 % to about [[3 %. 113 % graphene by w eight. Currently amended
3 0. (Withdra w n) The electromecha n ica l strain s ensor o f c laim 26, wher e in a chemical resistance of the electromechanical strain s ensor wh en s ubjected to an acid medium is about 98 %. Withdrawn
31. The electromechanical strain sensor of claim 26, wherein the strain sensor is an isotropic sensor. Withdrawn
33. Canceled
T he graphene l'unc tion aIiz ed carbon nanotube polymer composite o f c lai m 20, w herein the carbon containing material comprises acetylene (C Ii), methane (C 1 4), ethane (C: 1.), butane (CiI u), propane %-C 4 4j,§Cl₁₄ or combinations thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
graphene functionalized carbon nanotube polymer composite electromechanical strain sensor
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Strain Gauge Factor | 20 dimensionless | graphene functionalized carbon nanotube PVDF composite |
Composition Carbon Content | 94–95 wt% |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
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US 9,944,774Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Here carbon nanotubes were functionalized using conducting graphene molecules. In particular, graphite oxide and metal alloy hydride particles were …
FIG. 2.
FIG. 3. DETAILED DESCRIPTION 15 [0008 1 In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the …
FIG. 4 illustrates X-ray diffractograms 400 of graphite oxide (GO), graphene carbon nanotubes composite and for carbon nanotubes represented generally by …
FIG. 5 illustrates X-ray diffractograms 500 20 of graphene functionalized carbon nanotube PVDF composite and pure PVDF composite that are represented generally …
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
FIG. 7 is a high resolution FESEM image of the graphene carbon nanotubes composite nanofi l ler of
FIG. 8 is a graphical representation 800 of microstrain (pe) measured for the graphene functionalized carbon nanotube PVDF composite. Moreover, F IG. 9 is a …
FIG. 9 is a graphical representation of a change in resistance measured under applied mechanical strain for the graphene functionalized carbon nanotube PVDF …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdr aw n) A nieth od o f forni ing a graplhene fun ctio n alized carbon nanotub e poly mer com posi te, the method com prisi ng: dispos ing conducti ng fu nctional mole cul es arou nd a p lur ali ty of carbo n na notUbes to f orm a composite nanolill er: and embeddi iw th e composite n ano fille r with in a poly mer material to form the g raphene finc tionalized carbon nanotube poly m er composite. Withdrawn
(Wi thdrawn) I h e method of claim 1, where in the conducting functional molecule s comprise graphene molecules. Withdrawn
3. (Withdrawn) I le method of claim I, w here in the co n duct ing fu nct i ona l molecul es for ni at le ast one g raphene lay er. Withdrawn
(W ithdrauN n) [he m ethod of clai m 1, wherein di sposing conductin g Functional molecu les com prises: reactin g g raphit e oxide and a plurality of m etal alloy hydride particles to form a g r aph ite oxide- m etal all o y hydride mixture; and heati ng the g raphite oxide-metal alloy h ydride mixture in a ch em ical vapor d eposition (CVD) chamber i n presence of a ca r bon-conta ining mate rial to f orm the composite nano ti l er.
5. Th e method of claim 4, wherein the plurality of metal alloy hydride particles comprise nic kel m etal hydride, iron metal hydride, cobalt me tal hydride, or co mb inations th ereo f. Withdrawn
(Withdrawn-Currently Am ende d) I h e method of claim 4, further co mnrising i ntrod ucing hydro g en g as (ljl within the CVD chamber while h e ati ng the graphite oxide-metal alloy hydride mixture. wherein a fl ow rate of hydrogen gas is about 40 s ee m to about 70 se em. Currently amended
1 3. (Withdr awn)'I he method o l claim 4, w herein the g raphite oxide-metal alloy hydride mixture is heated to a temperature o f about 700 'C to about I 100C. Withdrawn
The method of clai im 4, wherein the plurality o F m eta l alloy hydride particles comprise le rrocene (Fe(Cd 1 s)j. Withdrawn
Canceled
T he method of cla i m 4, whe rein the carbon containin g material comprises acetylene (('211), methane (Ci 1), ethane (C II 1), b utane (C₁₁ m), propane (C31s) or combinations thereo f. Withdrawn
(Withdra w n) The method o f c laim 8, wherein a f low rate of the carbon containing mat e rial w ithin the CV D chamber is about 40 standard cubi c centimeters per minu te (s ee m) to about 60 sceLim. Withdrawn
1 1. (Canc elled) Canceled
(Cancell ed) Canceled
The method o ' clai m 1, w herein em bedd ing the c omposite nan ofiller comprises: dispersing the composite na nohi11er in a so lven t to form a composite nanolie 11 r so lu tion: dispersing a poly me r material in the solvent to fo rm a polymer solu tion: and ul trasoni c atin g the co m posite na nof ll1cr s olution a n d the polynmer sol Ltiol to F orm a ho mogzenous solution: and c asting the ho mogeno us s olution to form the graphene f unc tional i/i ed carbon na notube polymer composite. Withdrawn
(Withdrawn-Currently Amended) The method of claim 14. wherein the solvent comprises dimethyllrmamide (DMF). N-m e thyl-2-pyrrolido ne (NMP). dimethyl sul f ide (I) MS), aceto ne, or water, or co mbi natio n s th e reo f. Currently amended
T he method of clai m 14, wherein the polymer material comprises a thermosettin g polymer, a thermoplastic polymer, or combinations thereof. Withdrawn
I h e method of cla im 15, wh e rein the polymer material co mprises polyvinyli dene f luoride (lPVDF), po ly styrene. pol yethylen e te rep hi thalate (P E T), polyethylene oxide (P E[K), po lyvi nylpyrrolidone (PVP). poly eth er ether ketone (I IEK), nylon 6, or combinations the reof. Withdrawn
1 8. (C urrently Amended) A graphe n e t unctional i z ed carbon nanotube polymer composite c omprising: at least one graphen e layer disposed ar ound a plurality of carbon nanotub e s to form a composite nano l iller of g raphe n e f unctionali zed ca rbon na n otub e. wherein the composite nanoliller comprises about 94% to about 95% of carbon and about 5% to about 6% of oxvzen; and a polymer material e mb edd irig the co m posit e nanofiller. x herein the graphene functionalized carbon nanotube polymer composite has a strain gauce factor of about 20. Currently amended
(Pre viously Pres e nted) T he grap he ne iunc tional iz ed carbon nanotube pol yme r comp osi te of claim 18, wherein the c o mpo site nano f iller of graphen e fui ctionali ze d carbon nanotub e is formed by he ati ng g raph i te oxide-metal alloy-hydride mixture in the presence of a carbon containi ng material, and the g r aphite oxide- m etal a 1lo y-hydri d e mixture is a product of graphite oxide and a plurality o lf me tal alloy particles, and the plurality of metal alloy particles comprise 4 nickel metal hydride, iron metal hydride, cobalt metal hydride, or or g anometa llic compounds, or combinations thereof. Previously presented
21. I he graphene lunctionali/e d carbon nanotUbe polymer composite ol claim 18, w her e in the plurality of carbon nanotu b es comprise s ingle w al led carbon na n otubes, multi W alle d carbon nanotu bes, or combinations thereo f. Original
The grap hene lImetionali/e d carbon nanot ube polymer composite of claim 18, wherein a dia mete r of each of the plurality o1 g raph e ne lne tionali/ed carbon n an otubes is about 60 nm to about 70 nm. Original
27 T he g raphene t unc tionali z ed carbon nan o tube p olym er co mposi te of claim 18, wher e in the composit e nano lille r forms a sensor. an actuator, or combinations thereof. Previously presented
32. (Pr evi ousl y Presented) The g rap hene functio nal i7 ed carbon nanotu be polymer composite of claim 18, wher e in the graphene layer comprises a thickness of about 20 nm around any of the plural ity of carbon nanotub es. Previously presented
Canceled
22. The g raphen e fu nctionali/ed carbon nanot ube polymer composite o Ilai m 1 8, where in the p olymer material comprises a thermosetti ng polymer, a thermoplastic polymer. or combinations thereof. Original
Ihe g-raphene lunc tionali zed carbon nanotub e polymer composite of c laim 22, w herein the polymer ma ter i al compri se s pol v vinylid e ne fl uoride (PVD). polystyrene, polyethylene ter cph thalate (P E T), polyethylene oxide (P 1 (I), poly v inylpyrrol i don e (PVP), pol y ether ether ketone (PEEK), nylon 6, or combinations thereof. Original
(Withdrawn-Currently Am ende d) T he electromechanical strain sensor of claim 26. wherein the composite nano l iller comprises ab out 1 % to about [[3 %. 113 % graphene by w eight. Currently amended
3 0. (Withdra w n) The electromecha n ica l strain s ensor o f c laim 26, wher e in a chemical resistance of the electromechanical strain s ensor wh en s ubjected to an acid medium is about 98 %. Withdrawn
31. The electromechanical strain sensor of claim 26, wherein the strain sensor is an isotropic sensor. Withdrawn
33. Canceled
T he graphene l'unc tion aIiz ed carbon nanotube polymer composite o f c lai m 20, w herein the carbon containing material comprises acetylene (C Ii), methane (C 1 4), ethane (C: 1.), butane (CiI u), propane %-C 4 4j,§Cl₁₄ or combinations thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
graphene functionalized carbon nanotube polymer composite electromechanical strain sensor
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Strain Gauge Factor | 20 dimensionless | graphene functionalized carbon nanotube PVDF composite |
Composition Carbon Content | 94–95 wt% |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,944,774Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Here carbon nanotubes were functionalized using conducting graphene molecules. In particular, graphite oxide and metal alloy hydride particles were …
FIG. 2.
FIG. 3. DETAILED DESCRIPTION 15 [0008 1 In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the …
FIG. 4 illustrates X-ray diffractograms 400 of graphite oxide (GO), graphene carbon nanotubes composite and for carbon nanotubes represented generally by …
FIG. 5 illustrates X-ray diffractograms 500 20 of graphene functionalized carbon nanotube PVDF composite and pure PVDF composite that are represented generally …
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
FIG. 7 is a high resolution FESEM image of the graphene carbon nanotubes composite nanofi l ler of
FIG. 8 is a graphical representation 800 of microstrain (pe) measured for the graphene functionalized carbon nanotube PVDF composite. Moreover, F IG. 9 is a …
FIG. 9 is a graphical representation of a change in resistance measured under applied mechanical strain for the graphene functionalized carbon nanotube PVDF …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdr aw n) A nieth od o f forni ing a graplhene fun ctio n alized carbon nanotub e poly mer com posi te, the method com prisi ng: dispos ing conducti ng fu nctional mole cul es arou nd a p lur ali ty of carbo n na notUbes to f orm a composite nanolill er: and embeddi iw th e composite n ano fille r with in a poly mer material to form the g raphene finc tionalized carbon nanotube poly m er composite. Withdrawn
(Wi thdrawn) I h e method of claim 1, where in the conducting functional molecule s comprise graphene molecules. Withdrawn
3. (Withdrawn) I le method of claim I, w here in the co n duct ing fu nct i ona l molecul es for ni at le ast one g raphene lay er. Withdrawn
(W ithdrauN n) [he m ethod of clai m 1, wherein di sposing conductin g Functional molecu les com prises: reactin g g raphit e oxide and a plurality of m etal alloy hydride particles to form a g r aph ite oxide- m etal all o y hydride mixture; and heati ng the g raphite oxide-metal alloy h ydride mixture in a ch em ical vapor d eposition (CVD) chamber i n presence of a ca r bon-conta ining mate rial to f orm the composite nano ti l er.
5. Th e method of claim 4, wherein the plurality of metal alloy hydride particles comprise nic kel m etal hydride, iron metal hydride, cobalt me tal hydride, or co mb inations th ereo f. Withdrawn
(Withdrawn-Currently Am ende d) I h e method of claim 4, further co mnrising i ntrod ucing hydro g en g as (ljl within the CVD chamber while h e ati ng the graphite oxide-metal alloy hydride mixture. wherein a fl ow rate of hydrogen gas is about 40 s ee m to about 70 se em. Currently amended
1 3. (Withdr awn)'I he method o l claim 4, w herein the g raphite oxide-metal alloy hydride mixture is heated to a temperature o f about 700 'C to about I 100C. Withdrawn
The method of clai im 4, wherein the plurality o F m eta l alloy hydride particles comprise le rrocene (Fe(Cd 1 s)j. Withdrawn
Canceled
T he method of cla i m 4, whe rein the carbon containin g material comprises acetylene (('211), methane (Ci 1), ethane (C II 1), b utane (C₁₁ m), propane (C31s) or combinations thereo f. Withdrawn
(Withdra w n) The method o f c laim 8, wherein a f low rate of the carbon containing mat e rial w ithin the CV D chamber is about 40 standard cubi c centimeters per minu te (s ee m) to about 60 sceLim. Withdrawn
1 1. (Canc elled) Canceled
(Cancell ed) Canceled
The method o ' clai m 1, w herein em bedd ing the c omposite nan ofiller comprises: dispersing the composite na nohi11er in a so lven t to form a composite nanolie 11 r so lu tion: dispersing a poly me r material in the solvent to fo rm a polymer solu tion: and ul trasoni c atin g the co m posite na nof ll1cr s olution a n d the polynmer sol Ltiol to F orm a ho mogzenous solution: and c asting the ho mogeno us s olution to form the graphene f unc tional i/i ed carbon na notube polymer composite. Withdrawn
(Withdrawn-Currently Amended) The method of claim 14. wherein the solvent comprises dimethyllrmamide (DMF). N-m e thyl-2-pyrrolido ne (NMP). dimethyl sul f ide (I) MS), aceto ne, or water, or co mbi natio n s th e reo f. Currently amended
T he method of clai m 14, wherein the polymer material comprises a thermosettin g polymer, a thermoplastic polymer, or combinations thereof. Withdrawn
I h e method of cla im 15, wh e rein the polymer material co mprises polyvinyli dene f luoride (lPVDF), po ly styrene. pol yethylen e te rep hi thalate (P E T), polyethylene oxide (P E[K), po lyvi nylpyrrolidone (PVP). poly eth er ether ketone (I IEK), nylon 6, or combinations the reof. Withdrawn
1 8. (C urrently Amended) A graphe n e t unctional i z ed carbon nanotube polymer composite c omprising: at least one graphen e layer disposed ar ound a plurality of carbon nanotub e s to form a composite nano l iller of g raphe n e f unctionali zed ca rbon na n otub e. wherein the composite nanoliller comprises about 94% to about 95% of carbon and about 5% to about 6% of oxvzen; and a polymer material e mb edd irig the co m posit e nanofiller. x herein the graphene functionalized carbon nanotube polymer composite has a strain gauce factor of about 20. Currently amended
(Pre viously Pres e nted) T he grap he ne iunc tional iz ed carbon nanotube pol yme r comp osi te of claim 18, wherein the c o mpo site nano f iller of graphen e fui ctionali ze d carbon nanotub e is formed by he ati ng g raph i te oxide-metal alloy-hydride mixture in the presence of a carbon containi ng material, and the g r aphite oxide- m etal a 1lo y-hydri d e mixture is a product of graphite oxide and a plurality o lf me tal alloy particles, and the plurality of metal alloy particles comprise 4 nickel metal hydride, iron metal hydride, cobalt metal hydride, or or g anometa llic compounds, or combinations thereof. Previously presented
21. I he graphene lunctionali/e d carbon nanotUbe polymer composite ol claim 18, w her e in the plurality of carbon nanotu b es comprise s ingle w al led carbon na n otubes, multi W alle d carbon nanotu bes, or combinations thereo f. Original
The grap hene lImetionali/e d carbon nanot ube polymer composite of claim 18, wherein a dia mete r of each of the plurality o1 g raph e ne lne tionali/ed carbon n an otubes is about 60 nm to about 70 nm. Original
27 T he g raphene t unc tionali z ed carbon nan o tube p olym er co mposi te of claim 18, wher e in the composit e nano lille r forms a sensor. an actuator, or combinations thereof. Previously presented
32. (Pr evi ousl y Presented) The g rap hene functio nal i7 ed carbon nanotu be polymer composite of claim 18, wher e in the graphene layer comprises a thickness of about 20 nm around any of the plural ity of carbon nanotub es. Previously presented
Canceled
22. The g raphen e fu nctionali/ed carbon nanot ube polymer composite o Ilai m 1 8, where in the p olymer material comprises a thermosetti ng polymer, a thermoplastic polymer. or combinations thereof. Original
Ihe g-raphene lunc tionali zed carbon nanotub e polymer composite of c laim 22, w herein the polymer ma ter i al compri se s pol v vinylid e ne fl uoride (PVD). polystyrene, polyethylene ter cph thalate (P E T), polyethylene oxide (P 1 (I), poly v inylpyrrol i don e (PVP), pol y ether ether ketone (PEEK), nylon 6, or combinations thereof. Original
(Withdrawn-Currently Am ende d) T he electromechanical strain sensor of claim 26. wherein the composite nano l iller comprises ab out 1 % to about [[3 %. 113 % graphene by w eight. Currently amended
3 0. (Withdra w n) The electromecha n ica l strain s ensor o f c laim 26, wher e in a chemical resistance of the electromechanical strain s ensor wh en s ubjected to an acid medium is about 98 %. Withdrawn
31. The electromechanical strain sensor of claim 26, wherein the strain sensor is an isotropic sensor. Withdrawn
33. Canceled
T he graphene l'unc tion aIiz ed carbon nanotube polymer composite o f c lai m 20, w herein the carbon containing material comprises acetylene (C Ii), methane (C 1 4), ethane (C: 1.), butane (CiI u), propane %-C 4 4j,§Cl₁₄ or combinations thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
graphene functionalized carbon nanotube polymer composite electromechanical strain sensor
Materials described outside the worked examples.
carbon nanotubes
graphene
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 6 and 7 are low and high resolution field emission scanning electron microscope (FESEM) images 600 and 700 of the graphene carbon nanotubes composite …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Strain Gauge Factor | 20 dimensionless | graphene functionalized carbon nanotube PVDF composite |
Composition Carbon Content | 94–95 wt% |
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iron metal hydride
cobalt metal hydride
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graphene functionalized carbon nanotube PVDF composite |
Composition Oxygen Content | 5–6 wt% | graphene functionalized carbon nanotube PVDF composite |
Nanotube Diameter | 60–70 nm | carbon nanotubes |
Graphene Layer Thickness | 20 nm | graphene |
Graphene Content By Weight | 2–3 wt% | graphene functionalized carbon nanotube PVDF composite |
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Duration | 50–100 minutes | — |
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polymer material
graphite oxide
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carbon-containing material
nickel metal hydride
iron metal hydride
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Fe(C₅H₅)2
carbon-containing gas precursors
hydrogen gas
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polyvinylidene fluoride
polystyrene
polyethylene terephthalate
polyethylene oxide
polyvinylpyrrolidone
polyether ether ketone
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graphene functionalized carbon nanotube PVDF composite
misch metal hydride
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acetylene
C₂H₂
dimethylformamide
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N-methyl-2-pyrrolidone
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graphene functionalized carbon nanotube PVDF composite |
Composition Oxygen Content | 5–6 wt% | graphene functionalized carbon nanotube PVDF composite |
Nanotube Diameter | 60–70 nm | carbon nanotubes |
Graphene Layer Thickness | 20 nm | graphene |
Graphene Content By Weight | 2–3 wt% | graphene functionalized carbon nanotube PVDF composite |
Metal Hydride Particle Size | 1–10 microns | metal alloy hydride particles |
Duration | 50–100 minutes | — |
Thickness | 1–10 µm | — |
Thickness | 65–70 nm | — |
PROCESS FOR THE PRODUCTION OF ANTIMICROBIAL DENTAL ADHESIVES INCLUDING GRAPHENE AND RELATIVE PRODUCT THEREOF
polymer material
graphite oxide
metal alloy hydride particles
carbon-containing material
nickel metal hydride
iron metal hydride
cobalt metal hydride
ferrocene
Fe(C₅H₅)2
carbon-containing gas precursors
hydrogen gas
H₂
polyvinylidene fluoride
polystyrene
polyethylene terephthalate
polyethylene oxide
polyvinylpyrrolidone
polyether ether ketone
nylon 6
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graphene functionalized carbon nanotube PVDF composite
misch metal hydride
MmNi₃
acetylene
C₂H₂
dimethylformamide
DMF
N-methyl-2-pyrrolidone
NMP
dimethyl sulfide
DMS
graphene functionalized carbon nanotube PVDF composite |
Composition Oxygen Content | 5–6 wt% | graphene functionalized carbon nanotube PVDF composite |
Nanotube Diameter | 60–70 nm | carbon nanotubes |
Graphene Layer Thickness | 20 nm | graphene |
Graphene Content By Weight | 2–3 wt% | graphene functionalized carbon nanotube PVDF composite |
Metal Hydride Particle Size | 1–10 microns | metal alloy hydride particles |
Duration | 50–100 minutes | — |
Thickness | 1–10 µm | — |
Thickness | 65–70 nm | — |
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polymer material
graphite oxide
metal alloy hydride particles
carbon-containing material
nickel metal hydride
iron metal hydride
cobalt metal hydride
ferrocene
Fe(C₅H₅)2
carbon-containing gas precursors
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polyvinylidene fluoride
polystyrene
polyethylene terephthalate
polyethylene oxide
polyvinylpyrrolidone
polyether ether ketone
nylon 6
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misch metal hydride
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acetylene
C₂H₂
dimethylformamide
DMF
N-methyl-2-pyrrolidone
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dimethyl sulfide
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graphene functionalized carbon nanotube PVDF composite |
Composition Oxygen Content | 5–6 wt% | graphene functionalized carbon nanotube PVDF composite |
Nanotube Diameter | 60–70 nm | carbon nanotubes |
Graphene Layer Thickness | 20 nm | graphene |
Graphene Content By Weight | 2–3 wt% | graphene functionalized carbon nanotube PVDF composite |
Metal Hydride Particle Size | 1–10 microns | metal alloy hydride particles |
Duration | 50–100 minutes | — |
Thickness | 1–10 µm | — |
Thickness | 65–70 nm | — |
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