METHOD OF COMPOUNDING GRAPHENE WITH NON-CONDUCTIVE PARTICLES AND APPLICATIONS THEREOF

Soroush NAZARPOUR

Patent

Atlas literature

Patent

US 10,221,294

METHOD OF COMPOUNDING GRAPHENE WITH NON-CONDUCTIVE PARTICLES AND APPLICATIONS THEREOF

Soroush NAZARPOUR

Drawings

Patent drawings and their descriptions. Click a drawing to enlarge it.

FIG. 1

FIG. 1 is a schematic ﬂowchart illustrating a method of producing functionalized graphene, according to an embodiment. [1008]

FIG. 2

FIGS. 2A and 2B show example schematics of the process of milling in a vessel containing graphite, grinding media and an electrolyte solution, according to an …

FIG. 3

FIGS. 3A-3F are a series of SEM micrographs of a wide variety of few-layer graphene, according to an embodiment. [1010]

FIG. 4

FIGS. 4A and 4B are plots of the lateral size distribution of graphene-based particles that comprise few-layer graphene samples, according to an embodiment. …

FIG. 5

FIG. 5 is a plot of Raman spectra for a series of diﬀerent few-layer graphene sheets, and bulk graphite, according to an embodiment. [1012]

FIG. 6

FIGS. 6A-6G are plots showing the two peak deconvolution of the Raman spectra of diﬀerent few-layer graphene sheets and bulk graphite indicating the presence …

FIG. 7

FIGS. 7A and 7B are plots showing the shift of the 2D band peak as a function of the thickness of few-layer graphene samples, according to an embodiment. [1014]

FIG. 8

FIG. 8 is alternative plot providing a compact view of the number of layers in few- layer graphene samples, according to an embodiment. [1015]

FIG. 9

FIG. 9 is a plot showing simulated results of the number of layers in few-layer graphene samples, according to an embodiment. [1016]

FIG. 10

FIG. 10 is an example plot of X-ray photon spectroscopy (XPS) spectra for a series of diﬀerent few-layer graphene sheets and bulk graphite, according to an …

FIG. 11

FIG. 11 is an example plot of example Fourier transform infrared spectroscopy by attenuated total reﬂection (ATR-FTIR) spectra for a series of diﬀerent …

FIG. 12

FIGS. 12A-D are plots showing the results of thermo gravimetric analysis of diﬀerent few- layer graphene, and bulk graphite indicating the thermal stability of …

FIG. 13

FIGS. 13A-D are example plots of XPS, Raman, thermo gravimetric analysis (TGA), and FTIR spectra of electrostatically charged and hydroxylated graphene, …

FIG. 14

FIGS. 14A-14C are example plots of XPS, TGA, and FTIR spectra of at least partially oxidized graphene, respectively, according to an embodiment. [1021]

FIG. 15

FIG. 15 shows an example plot of thermal conductivity of graphene/polylactic acid (PLA) as a function of graphene concentration by weight, according to an …

FIG. 16

FIG. 16 shows an example experimental demonstration of the eﬀect of adding about 0.5 wt% of grade D graphene into UHMWPE (Ultra High Molecular Weight …

FIG. 17

FIG. 17 is a schematic illustration of an electrospray system for producing graphene nanoﬂakes/polymer compounds, according to an embodiment. [1024]

FIG. 18

FIG. 18 is a bar chart of ultimate tensile strength results from LDPE/grade-D composites. [1025]

FIG. 19

FIG. 19 is a bar chart of yield strength results from LDPE/grade-D composites. [1026]

FIG. 20

performance graph

FIG. 20 is a graph of stress-strain curves obtained from LLDPE/grade-D composites. [1027]

FIG. 21

FIG. 21 is a bar chart of ultimate tensile strength results of PA 6,6/1% graphene and pristine PA 6,6.

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

2 independent · 12 dependent

1
Independentgraphene nanoflakesnon-conductive polymer particles
A method of coating non-conductive polymer particles with graphene nanoﬂakes, comprising: transferring polymer particles to a bed; electrically grounding the bed; transferring graphene nanoﬂakes to a spray nozzle; charging the spray nozzle to a voltage to induce an electrostatic charge in the graphene nanoﬂakes; transferring the electrostatically charged graphene nanoﬂakes from the spray nozzle to the bed; and tumbling the polymer particles while the electrostatically charged nanoﬂakes are transferred from the spray nozzle to the bed. Currently amended
1. 2
  Dependent← claim 1graphene nanoflakes
  The coating method of claim 1, wherein the graphene nanoﬂakes can be fed to the spray nozzle in the form of at least one of a dry powder, a paste, and a dispersion solution. Previously presented
2. 3
  Dependent← claim 1graphene nanoflakessingle-layer graphenefew-layer graphenegraphene nanoplateletsgraphene oxideexpanded graphite oxide
  The coating method of claim 1, wherein the graphene nanoﬂakes are at least one of single-layer graphene, few-layer graphene, graphene nanoplatelets, graphene oxide, and expanded graphite oxide. Previously presented
3. 4
  Dependent← claim 1graphene nanoflakes
  The coating method of claim 1, wherein the graphene nanoﬂakes have lateral sizes in the range of about 20 nm to about 50 pm. Previously presented
500
Independent
Previously presented

Materials

Materials described outside the worked examples.

graphene nanoflakes

Coating Material/Additive

non-conductive polymer particles

Substrate/Host Material

Process steps

Additional fabrication and treatment steps described in the patent.

Electrospray Coating

Step 1

Process details

bed:electrically grounded

method:electrospray coating

tumbling:true

spray nozzle:charged to high voltage

temperature c max:

Characterization

Measurements and analyses referenced in the patent, with their drawing references.

sem

SEM

FIGS. 3A-3F are a series of SEM micrographs of a wide variety of few-layer graphene, according to an embodiment. [1010]

Figure references

FIG. 3

graphenegraphene

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
graphene surface energy	40–60 mJ/m2	graphene nanoflakes
graphene BET surface area	2630 m2/g

Why these are connected

Related documents with shared materials, methods, properties, or citations.

METHOD OF COMPOUNDING GRAPHENE WITH NON-CONDUCTIVE PARTICLES AND APPLICATIONS THEREOF | Matter42 Literature