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A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TEGO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; ii) a dispersion of thermally expanded graphite TECO in organic solvents or their appropriate mixture 2 Docket No. 2596-1050 App l n. No. 14/435,835 matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14° C-20 ° C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets CNPs, distributing said GN P s and dispersing said graphene nanoplatelets GNPs in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet CNP aggregates in the mixture during complete solvent evaporation, wherein: i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration 3 Docket No. 2596-1050 App l n. No. 14/435,835 between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet CNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet CNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets CNPs, which affects properties of polarization of the material but not the material's electrical conductivity, and wherein an expansion temperature of graphite 4 Docket No. 2596-1050 App l n. No. 14/435,835 intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.1.svg 0.1 2.04 Black and white where T is expressed in degrees centigrade and R in ohms, said regression line expressing analytically, as a function of the expansion temperature, a resistance of the GN P films measured using the four-tip technique; said regression line being obtained by interpolation of experimental data.

A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TECO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; 5 Docket No. 2596-1050 App l n. No. 14/435,835 ii) a dispersion of expanded graphite TECO in organic solvents or their appropriate mixture matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14 0 C-20 0 C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets GNPs, distributing said graphene nanoplatelets GNPs and dispersing said GNP s in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet GNU aggregates in the mixture during complete solvent evaporation, wherein: 6 Docket No. 2596-1050 App l n. No. 14/435,835 i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet GNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet GNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets GNPs, which affects properties of polarization of the material but not the material's 7 Docket No. 2596-1050 App l n. No. 14/435,835 electrical conductivity, and wherein a rate of expansion of graphite intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.2.svg 0.14 1.89 Black and white where r is expressed in degrees centigrade per minute and R in ohms; said regression line being obtained by interpolation of experimental data.

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The process for producing polymeric nanocomposites as per Claim [[27]] 29, wherein the graphene nanoplatelets are produced by thermochemical exfoliation of graphite intercalated compound, by liquid-phase exfoliation of thermally expanded graphite using as solvent acetone or dimethyl formamide, or a mixture of acetone and dimethyl formamide in amounts ranging between 5 and 15 parts out of 100 of dimethyl formamide, and between 95 and 85 parts out of 100 of acetone, and wherein a ratio of [[DMF]] dimethyl formamide:Acetone is 1:9.

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A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TEGO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; ii) a dispersion of thermally expanded graphite TECO in organic solvents or their appropriate mixture 2 Docket No. 2596-1050 App l n. No. 14/435,835 matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14° C-20 ° C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets CNPs, distributing said GN P s and dispersing said graphene nanoplatelets GNPs in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet CNP aggregates in the mixture during complete solvent evaporation, wherein: i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration 3 Docket No. 2596-1050 App l n. No. 14/435,835 between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet CNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet CNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets CNPs, which affects properties of polarization of the material but not the material's electrical conductivity, and wherein an expansion temperature of graphite 4 Docket No. 2596-1050 App l n. No. 14/435,835 intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.1.svg 0.1 2.04 Black and white where T is expressed in degrees centigrade and R in ohms, said regression line expressing analytically, as a function of the expansion temperature, a resistance of the GN P films measured using the four-tip technique; said regression line being obtained by interpolation of experimental data.

A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TECO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; 5 Docket No. 2596-1050 App l n. No. 14/435,835 ii) a dispersion of expanded graphite TECO in organic solvents or their appropriate mixture matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14 0 C-20 0 C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets GNPs, distributing said graphene nanoplatelets GNPs and dispersing said GNP s in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet GNU aggregates in the mixture during complete solvent evaporation, wherein: 6 Docket No. 2596-1050 App l n. No. 14/435,835 i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet GNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet GNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets GNPs, which affects properties of polarization of the material but not the material's 7 Docket No. 2596-1050 App l n. No. 14/435,835 electrical conductivity, and wherein a rate of expansion of graphite intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.2.svg 0.14 1.89 Black and white where r is expressed in degrees centigrade per minute and R in ohms; said regression line being obtained by interpolation of experimental data.

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The process for producing polymeric nanocomposites as per Claim [[27]] 29, wherein the graphene nanoplatelets are produced by thermochemical exfoliation of graphite intercalated compound, by liquid-phase exfoliation of thermally expanded graphite using as solvent acetone or dimethyl formamide, or a mixture of acetone and dimethyl formamide in amounts ranging between 5 and 15 parts out of 100 of dimethyl formamide, and between 95 and 85 parts out of 100 of acetone, and wherein a ratio of [[DMF]] dimethyl formamide:Acetone is 1:9.

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A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TEGO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; ii) a dispersion of thermally expanded graphite TECO in organic solvents or their appropriate mixture 2 Docket No. 2596-1050 App l n. No. 14/435,835 matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14° C-20 ° C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets CNPs, distributing said GN P s and dispersing said graphene nanoplatelets GNPs in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet CNP aggregates in the mixture during complete solvent evaporation, wherein: i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration 3 Docket No. 2596-1050 App l n. No. 14/435,835 between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet CNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet CNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets CNPs, which affects properties of polarization of the material but not the material's electrical conductivity, and wherein an expansion temperature of graphite 4 Docket No. 2596-1050 App l n. No. 14/435,835 intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.1.svg 0.1 2.04 Black and white where T is expressed in degrees centigrade and R in ohms, said regression line expressing analytically, as a function of the expansion temperature, a resistance of the GN P films measured using the four-tip technique; said regression line being obtained by interpolation of experimental data.

A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TECO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; 5 Docket No. 2596-1050 App l n. No. 14/435,835 ii) a dispersion of expanded graphite TECO in organic solvents or their appropriate mixture matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14 0 C-20 0 C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets GNPs, distributing said graphene nanoplatelets GNPs and dispersing said GNP s in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet GNU aggregates in the mixture during complete solvent evaporation, wherein: 6 Docket No. 2596-1050 App l n. No. 14/435,835 i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet GNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet GNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets GNPs, which affects properties of polarization of the material but not the material's 7 Docket No. 2596-1050 App l n. No. 14/435,835 electrical conductivity, and wherein a rate of expansion of graphite intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.2.svg 0.14 1.89 Black and white where r is expressed in degrees centigrade per minute and R in ohms; said regression line being obtained by interpolation of experimental data.

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The process for producing polymeric nanocomposites as per Claim [[27]] 29, wherein the graphene nanoplatelets are produced by thermochemical exfoliation of graphite intercalated compound, by liquid-phase exfoliation of thermally expanded graphite using as solvent acetone or dimethyl formamide, or a mixture of acetone and dimethyl formamide in amounts ranging between 5 and 15 parts out of 100 of dimethyl formamide, and between 95 and 85 parts out of 100 of acetone, and wherein a ratio of [[DMF]] dimethyl formamide:Acetone is 1:9.

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A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TEGO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; ii) a dispersion of thermally expanded graphite TECO in organic solvents or their appropriate mixture 2 Docket No. 2596-1050 App l n. No. 14/435,835 matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14° C-20 ° C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets CNPs, distributing said GN P s and dispersing said graphene nanoplatelets GNPs in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet CNP aggregates in the mixture during complete solvent evaporation, wherein: i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration 3 Docket No. 2596-1050 App l n. No. 14/435,835 between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet CNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet CNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets CNPs, which affects properties of polarization of the material but not the material's electrical conductivity, and wherein an expansion temperature of graphite 4 Docket No. 2596-1050 App l n. No. 14/435,835 intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.1.svg 0.1 2.04 Black and white where T is expressed in degrees centigrade and R in ohms, said regression line expressing analytically, as a function of the expansion temperature, a resistance of the GN P films measured using the four-tip technique; said regression line being obtained by interpolation of experimental data.

A process for producing a polymeric nanocomposite with electrical and electromagnetic properties controlled and predictable by applying the equivalent- effective-medium model, for electromagnetic applications, shielding and/or absorption of the energy associated to electromagnetic fields, comprising the following steps: a) carrying out a synthesis of graphene nanoplatelets (CNPs) through liquid phase exfoliation of thermally expanded graphite (TECO), modifying, through parameters of the production process, morphological and electrical properties thereof, said parameters of the production being: i) a temperature-to-time expansion rate higher than 2000 ° C/min and up to 45000 ° C/min; 5 Docket No. 2596-1050 App l n. No. 14/435,835 ii) a dispersion of expanded graphite TECO in organic solvents or their appropriate mixture matching Hansen's solubility parameters of graphite; and iii) sonication with an ultrasound tip at a power in a range of 20 %-100%, in pulse mode between 1 s ON-2s OFF and 4s ON- 1 s OFF, with total ON time of 20 m in, at a temperature below a boiling point of the solvent, in a range of 14 0 C-20 0 C in order to keep the ultrasound tip resonating throughout the dispersion of step ii); b) using said graphene nanoplatelets nanoplatclctcs (GNPs) as nanofillers in a polymeric matrix selected on a basis of chemical compatibility with the graphene nanoplatelets GNPs, distributing said graphene nanoplatelets GNPs and dispersing said GNP s in an entire mass of the matrix in a weight percentage by a magnetic stirring technique which imparts on a magnetic anchor a motion of revolution in addition to a rotation around the magnetic anchor's own axis so as to prevent formation of graphene nanoplatelet GNU aggregates in the mixture during complete solvent evaporation, wherein: 6 Docket No. 2596-1050 App l n. No. 14/435,835 i) control of the solvent evaporation rate in a range 0.05-0.2 ml/min and corresponding to a total duration between 0.5 and 24 h in order to avoid formation of graphene nanoplatelet GNP aggregates and trapping of molecules of solvent in the nanocomposite, ii) utilizing a device adapted to impart on the magnetic anchor a motion of revolution in addition to the rotation around the magnetic anchor's own axis in order to avoid formation of graphene nanoplatelet GNP aggregates and to obtain a dispersion of the nanofiller in the polymer matrix, wherein said mixing process and preventing aggregate formation, produces a nanocomposite in which an imaginary part of an effective permittivity is controlled independently of a real part through a nanometric thickness of the nanofiller, which activates electron transport between the nanofiller and a polymer matrix, whereas the real part of the effective permittivity is controlled independently of the imaginary part through a surface extension of the graphene nanoplatelets GNPs, which affects properties of polarization of the material but not the material's 7 Docket No. 2596-1050 App l n. No. 14/435,835 electrical conductivity, and wherein a rate of expansion of graphite intercalated compound CIC is made using a regression line SVG 14435835.03-06-2017.IZYLGRVZRXEAPX4.CLM.2.svg 0.14 1.89 Black and white where r is expressed in degrees centigrade per minute and R in ohms; said regression line being obtained by interpolation of experimental data.

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The process for producing polymeric nanocomposites as per Claim [[27]] 29, wherein the graphene nanoplatelets are produced by thermochemical exfoliation of graphite intercalated compound, by liquid-phase exfoliation of thermally expanded graphite using as solvent acetone or dimethyl formamide, or a mixture of acetone and dimethyl formamide in amounts ranging between 5 and 15 parts out of 100 of dimethyl formamide, and between 95 and 85 parts out of 100 of acetone, and wherein a ratio of [[DMF]] dimethyl formamide:Acetone is 1:9.