Patent
MULTIFUNCTIONAL GRAPHENE-SILICONE ELASTOMER NANOCOMPOSITE, METHOD OF MAKING THE SAME, AND USES THEREOF
US
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FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
FIG. 3 provides a graphical representation of stress-strain curves of F GS-SE nanocomposites at different FGS concentrations. 1 0025]
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
FIG. 5 provides a graphical representation of hysteresis characterization of unfilled and 0. 5wt% F GS-SE nanoco m posite. 1 0027]
FIG. 6D). 1 0078] The simulated and normalized stress-strain curves of unfilled and FGS-filled SE are shown in Error! Reference source not found.A-7C. The …
FIGS. 7A-7C provide graphical representations of (7A). Simulated no nn alized stress- strain curves of unfilled and FGS-filled SE; (7 B). Fraction of the matrix …
FIGS. 8A and 8B provide graphical representations of a comparison of FGS with other fillers in the modulus of the composite and the improvement in themodulus. …
FIGS. 9A and 9B provide graphical representations of a comparison of FGS with other fillers in the tensile strength of the composite and the improvement in …
FIG. 10 provides a graphical representation of the effect of catalyst concentration on the modulus of SE at r = 1.5 for all samples. 7 [0032]
FIG. 11 provides a graphical representation of the effect of silicon hydride to vinyl ratio on the modulus of F GS-SE nanocomposite. DETAILED DESCRIPTION OF THE …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2/g, comprising: dispersing functional graphene sheets (F GS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl te nn inated polysiloxane; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalyst; curing the resulting mixture to provide the nanocomposite; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600ppm; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional graphene sheets have n anometer scale separation at contact point between individual functional graphene sheets.
Clai m 3: The method of claim 2, wherein the c uring is performed at elevated temperature for a period of time from 1 to 48 hours.
The method of claim 2, wherein the functional graphene sheets have a loading of from 0.5 to 3 wt%, based on total nanocomposite weight.
The method of claim 2, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)silanes and pol v (hydromethyl sil oxane) crosslinkers.
The method of claim 2, wherein the silane cross-linker is a tetrakis(dimethylsiloxy)silane.
The method of claim 2, wherein the vinyl-terminated polysiloxane has a viscosity of from 100 to 300,000 m Pas.
An article formed from a nanocomposite produced by the method of claim 2.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about 1,280 ppm.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about5,600ppm. 6
The article of claim I1, wherein the article is formed by molding.
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2 g, comprising: 4 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment dispersing functional graphene sheets (FGS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl terminated polysiloxane h aving a viscosity of from 100 to 300,000 mPas; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalysts, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)sil an es and poly(hydromethyl siloxane) crosslinkers, and wherein the hydrosilylation catalyst is a member selected from the group consisting of chloroplantinic acid, elementary platinum, solid platinum supported on a carrier; platinum-vinylsilox ane complexes; platinum-phosphine complexes; platinum-phosphite complexes; Pt (acac) 2, wherein (acac) represents acetylacetonate group; platinum-hydrocarbon co n jugates; platinum alcoholates; RhC I (PPh 3) 3; RhC 3; R l/Al 2 O 3; RuC I 3; IrC l 3; FeC 3; A ICl 3; PdC 1 2 -2H 2 O; N iCI-; and TiC l 4; and curing the resulting mixture to provide the nanocomposite, wherein the curing is performed at elevated temperature for a period of time from 1 to 48 hours; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600pp m; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional 5 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment graphene sheets have n anometer scale separation at contact points between individual functional graphene sheets.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 367ppm.
The method of claim 15, wherein the hydros i lylation catalyst is present at a concentration of about I,000 ppm.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 1,28 0 ppm.
The m ethod of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 5,600ppm.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-silicone elastomer nanocomposite
Materials described outside the worked examples.
functional graphene sheets
vinyl-terminated polysiloxane
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–30 hours | — |
Pressure |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
FIG. 3 provides a graphical representation of stress-strain curves of F GS-SE nanocomposites at different FGS concentrations. 1 0025]
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
FIG. 5 provides a graphical representation of hysteresis characterization of unfilled and 0. 5wt% F GS-SE nanoco m posite. 1 0027]
FIG. 6D). 1 0078] The simulated and normalized stress-strain curves of unfilled and FGS-filled SE are shown in Error! Reference source not found.A-7C. The …
FIGS. 7A-7C provide graphical representations of (7A). Simulated no nn alized stress- strain curves of unfilled and FGS-filled SE; (7 B). Fraction of the matrix …
FIGS. 8A and 8B provide graphical representations of a comparison of FGS with other fillers in the modulus of the composite and the improvement in themodulus. …
FIGS. 9A and 9B provide graphical representations of a comparison of FGS with other fillers in the tensile strength of the composite and the improvement in …
FIG. 10 provides a graphical representation of the effect of catalyst concentration on the modulus of SE at r = 1.5 for all samples. 7 [0032]
FIG. 11 provides a graphical representation of the effect of silicon hydride to vinyl ratio on the modulus of F GS-SE nanocomposite. DETAILED DESCRIPTION OF THE …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2/g, comprising: dispersing functional graphene sheets (F GS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl te nn inated polysiloxane; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalyst; curing the resulting mixture to provide the nanocomposite; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600ppm; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional graphene sheets have n anometer scale separation at contact point between individual functional graphene sheets.
Clai m 3: The method of claim 2, wherein the c uring is performed at elevated temperature for a period of time from 1 to 48 hours.
The method of claim 2, wherein the functional graphene sheets have a loading of from 0.5 to 3 wt%, based on total nanocomposite weight.
The method of claim 2, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)silanes and pol v (hydromethyl sil oxane) crosslinkers.
The method of claim 2, wherein the silane cross-linker is a tetrakis(dimethylsiloxy)silane.
The method of claim 2, wherein the vinyl-terminated polysiloxane has a viscosity of from 100 to 300,000 m Pas.
An article formed from a nanocomposite produced by the method of claim 2.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about 1,280 ppm.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about5,600ppm. 6
The article of claim I1, wherein the article is formed by molding.
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2 g, comprising: 4 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment dispersing functional graphene sheets (FGS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl terminated polysiloxane h aving a viscosity of from 100 to 300,000 mPas; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalysts, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)sil an es and poly(hydromethyl siloxane) crosslinkers, and wherein the hydrosilylation catalyst is a member selected from the group consisting of chloroplantinic acid, elementary platinum, solid platinum supported on a carrier; platinum-vinylsilox ane complexes; platinum-phosphine complexes; platinum-phosphite complexes; Pt (acac) 2, wherein (acac) represents acetylacetonate group; platinum-hydrocarbon co n jugates; platinum alcoholates; RhC I (PPh 3) 3; RhC 3; R l/Al 2 O 3; RuC I 3; IrC l 3; FeC 3; A ICl 3; PdC 1 2 -2H 2 O; N iCI-; and TiC l 4; and curing the resulting mixture to provide the nanocomposite, wherein the curing is performed at elevated temperature for a period of time from 1 to 48 hours; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600pp m; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional 5 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment graphene sheets have n anometer scale separation at contact points between individual functional graphene sheets.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 367ppm.
The method of claim 15, wherein the hydros i lylation catalyst is present at a concentration of about I,000 ppm.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 1,28 0 ppm.
The m ethod of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 5,600ppm.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-silicone elastomer nanocomposite
Materials described outside the worked examples.
functional graphene sheets
vinyl-terminated polysiloxane
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–30 hours | — |
Pressure |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
FIG. 3 provides a graphical representation of stress-strain curves of F GS-SE nanocomposites at different FGS concentrations. 1 0025]
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
FIG. 5 provides a graphical representation of hysteresis characterization of unfilled and 0. 5wt% F GS-SE nanoco m posite. 1 0027]
FIG. 6D). 1 0078] The simulated and normalized stress-strain curves of unfilled and FGS-filled SE are shown in Error! Reference source not found.A-7C. The …
FIGS. 7A-7C provide graphical representations of (7A). Simulated no nn alized stress- strain curves of unfilled and FGS-filled SE; (7 B). Fraction of the matrix …
FIGS. 8A and 8B provide graphical representations of a comparison of FGS with other fillers in the modulus of the composite and the improvement in themodulus. …
FIGS. 9A and 9B provide graphical representations of a comparison of FGS with other fillers in the tensile strength of the composite and the improvement in …
FIG. 10 provides a graphical representation of the effect of catalyst concentration on the modulus of SE at r = 1.5 for all samples. 7 [0032]
FIG. 11 provides a graphical representation of the effect of silicon hydride to vinyl ratio on the modulus of F GS-SE nanocomposite. DETAILED DESCRIPTION OF THE …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2/g, comprising: dispersing functional graphene sheets (F GS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl te nn inated polysiloxane; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalyst; curing the resulting mixture to provide the nanocomposite; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600ppm; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional graphene sheets have n anometer scale separation at contact point between individual functional graphene sheets.
Clai m 3: The method of claim 2, wherein the c uring is performed at elevated temperature for a period of time from 1 to 48 hours.
The method of claim 2, wherein the functional graphene sheets have a loading of from 0.5 to 3 wt%, based on total nanocomposite weight.
The method of claim 2, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)silanes and pol v (hydromethyl sil oxane) crosslinkers.
The method of claim 2, wherein the silane cross-linker is a tetrakis(dimethylsiloxy)silane.
The method of claim 2, wherein the vinyl-terminated polysiloxane has a viscosity of from 100 to 300,000 m Pas.
An article formed from a nanocomposite produced by the method of claim 2.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about 1,280 ppm.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about5,600ppm. 6
The article of claim I1, wherein the article is formed by molding.
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2 g, comprising: 4 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment dispersing functional graphene sheets (FGS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl terminated polysiloxane h aving a viscosity of from 100 to 300,000 mPas; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalysts, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)sil an es and poly(hydromethyl siloxane) crosslinkers, and wherein the hydrosilylation catalyst is a member selected from the group consisting of chloroplantinic acid, elementary platinum, solid platinum supported on a carrier; platinum-vinylsilox ane complexes; platinum-phosphine complexes; platinum-phosphite complexes; Pt (acac) 2, wherein (acac) represents acetylacetonate group; platinum-hydrocarbon co n jugates; platinum alcoholates; RhC I (PPh 3) 3; RhC 3; R l/Al 2 O 3; RuC I 3; IrC l 3; FeC 3; A ICl 3; PdC 1 2 -2H 2 O; N iCI-; and TiC l 4; and curing the resulting mixture to provide the nanocomposite, wherein the curing is performed at elevated temperature for a period of time from 1 to 48 hours; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600pp m; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional 5 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment graphene sheets have n anometer scale separation at contact points between individual functional graphene sheets.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 367ppm.
The method of claim 15, wherein the hydros i lylation catalyst is present at a concentration of about I,000 ppm.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 1,28 0 ppm.
The m ethod of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 5,600ppm.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-silicone elastomer nanocomposite
Materials described outside the worked examples.
functional graphene sheets
vinyl-terminated polysiloxane
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–30 hours | — |
Pressure |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
FIG. 3 provides a graphical representation of stress-strain curves of F GS-SE nanocomposites at different FGS concentrations. 1 0025]
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
FIG. 5 provides a graphical representation of hysteresis characterization of unfilled and 0. 5wt% F GS-SE nanoco m posite. 1 0027]
FIG. 6D). 1 0078] The simulated and normalized stress-strain curves of unfilled and FGS-filled SE are shown in Error! Reference source not found.A-7C. The …
FIGS. 7A-7C provide graphical representations of (7A). Simulated no nn alized stress- strain curves of unfilled and FGS-filled SE; (7 B). Fraction of the matrix …
FIGS. 8A and 8B provide graphical representations of a comparison of FGS with other fillers in the modulus of the composite and the improvement in themodulus. …
FIGS. 9A and 9B provide graphical representations of a comparison of FGS with other fillers in the tensile strength of the composite and the improvement in …
FIG. 10 provides a graphical representation of the effect of catalyst concentration on the modulus of SE at r = 1.5 for all samples. 7 [0032]
FIG. 11 provides a graphical representation of the effect of silicon hydride to vinyl ratio on the modulus of F GS-SE nanocomposite. DETAILED DESCRIPTION OF THE …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2/g, comprising: dispersing functional graphene sheets (F GS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl te nn inated polysiloxane; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalyst; curing the resulting mixture to provide the nanocomposite; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600ppm; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional graphene sheets have n anometer scale separation at contact point between individual functional graphene sheets.
Clai m 3: The method of claim 2, wherein the c uring is performed at elevated temperature for a period of time from 1 to 48 hours.
The method of claim 2, wherein the functional graphene sheets have a loading of from 0.5 to 3 wt%, based on total nanocomposite weight.
The method of claim 2, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)silanes and pol v (hydromethyl sil oxane) crosslinkers.
The method of claim 2, wherein the silane cross-linker is a tetrakis(dimethylsiloxy)silane.
The method of claim 2, wherein the vinyl-terminated polysiloxane has a viscosity of from 100 to 300,000 m Pas.
An article formed from a nanocomposite produced by the method of claim 2.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about 1,280 ppm.
The method of claim 2, wherein the hydrosilylation catalyst is present at a concentration of about5,600ppm. 6
The article of claim I1, wherein the article is formed by molding.
A method for production of a nanocomposite composition comprising a silicone elastomer matrix and functionalized graphene sheets having a surface area of from 300 m 2/g to 2,630 m 2 g, comprising: 4 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment dispersing functional graphene sheets (FGS) in a polar solvent to form an FGS suspension; combining the F GS suspension with a vinyl terminated polysiloxane h aving a viscosity of from 100 to 300,000 mPas; removing the polar solvent; combining the resulting mixture with a crosslinker and a hydrosilylation catalysts, wherein the silane cross-linker is a member selected from the group consisting of tetrakis(dialkylsiloxy)sil an es and poly(hydromethyl siloxane) crosslinkers, and wherein the hydrosilylation catalyst is a member selected from the group consisting of chloroplantinic acid, elementary platinum, solid platinum supported on a carrier; platinum-vinylsilox ane complexes; platinum-phosphine complexes; platinum-phosphite complexes; Pt (acac) 2, wherein (acac) represents acetylacetonate group; platinum-hydrocarbon co n jugates; platinum alcoholates; RhC I (PPh 3) 3; RhC 3; R l/Al 2 O 3; RuC I 3; IrC l 3; FeC 3; A ICl 3; PdC 1 2 -2H 2 O; N iCI-; and TiC l 4; and curing the resulting mixture to provide the nanocomposite, wherein the curing is performed at elevated temperature for a period of time from 1 to 48 hours; wherein the functional graphene sheets have a loading of greater than 0.05 wt% based on total nanocomposite weight; wherein the hydrosilylation catalyst is present at a concentration of about 367ppm to about 5600pp m; wherein the nanocomposite comprises a silicon hydride to vinyl molar ratio of about 1.5 to about 2.1; and wherein the functional graphene sheets are present within the nanocomposite in a continuous three-dimensional connected network in a manner wherein individual functional 5 U.S. Application Serial No. 1 5/225,946 Preliminary Amendment graphene sheets have n anometer scale separation at contact points between individual functional graphene sheets.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 367ppm.
The method of claim 15, wherein the hydros i lylation catalyst is present at a concentration of about I,000 ppm.
The method of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 1,28 0 ppm.
The m ethod of claim 15, wherein the hydrosilylation catalyst is present at a concentration of about 5,600ppm.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-silicone elastomer nanocomposite
Materials described outside the worked examples.
functional graphene sheets
vinyl-terminated polysiloxane
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 provides a graphical representation of the effect of filler concentration on the electrical conductivity of various F GS and graphene filled …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–30 hours | — |
Pressure |
Related documents with shared materials, methods, properties, or citations.
silicone elastomer matrix
silane crosslinker (tetrakis(dialkylsiloxy)silanes or poly(hydromethylsiloxane))
tetrakis(dimethylsiloxy)silane
hydrosilylation catalyst
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
| — |
Pressure | 100–500000 mPa | — |
Pressure | 100–300000 mPa | — |
Thickness | 0.2–0.6 mm | — |
Duration | 20–25 hours | — |
Thickness | 1–2 cm | — |
Thickness | 2–4 cm | — |
Pressure | ≥ 10 MPa | — |
Duration | 1–48 hours | — |
silicone elastomer matrix
silane crosslinker (tetrakis(dialkylsiloxy)silanes or poly(hydromethylsiloxane))
tetrakis(dimethylsiloxy)silane
hydrosilylation catalyst
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
| — |
Pressure | 100–500000 mPa | — |
Pressure | 100–300000 mPa | — |
Thickness | 0.2–0.6 mm | — |
Duration | 20–25 hours | — |
Thickness | 1–2 cm | — |
Thickness | 2–4 cm | — |
Pressure | ≥ 10 MPa | — |
Duration | 1–48 hours | — |
silicone elastomer matrix
silane crosslinker (tetrakis(dialkylsiloxy)silanes or poly(hydromethylsiloxane))
tetrakis(dimethylsiloxy)silane
hydrosilylation catalyst
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
| — |
Pressure | 100–500000 mPa | — |
Pressure | 100–300000 mPa | — |
Thickness | 0.2–0.6 mm | — |
Duration | 20–25 hours | — |
Thickness | 1–2 cm | — |
Thickness | 2–4 cm | — |
Pressure | ≥ 10 MPa | — |
Duration | 1–48 hours | — |
silicone elastomer matrix
silane crosslinker (tetrakis(dialkylsiloxy)silanes or poly(hydromethylsiloxane))
tetrakis(dimethylsiloxy)silane
hydrosilylation catalyst
FIG. 4A. when the unfilled SE was deformed, the notch gradually opened up. Until a certain level of stress was reached, tearing was initiated from the tip of …
| — |
Pressure | 100–500000 mPa | — |
Pressure | 100–300000 mPa | — |
Thickness | 0.2–0.6 mm | — |
Duration | 20–25 hours | — |
Thickness | 1–2 cm | — |
Thickness | 2–4 cm | — |
Pressure | ≥ 10 MPa | — |
Duration | 1–48 hours | — |