WO2023199211A1 - Conductive ink comprising graphene - Google Patents

Conductive ink comprising graphene Download PDF

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Publication number
WO2023199211A1
WO2023199211A1 PCT/IB2023/053682 IB2023053682W WO2023199211A1 WO 2023199211 A1 WO2023199211 A1 WO 2023199211A1 IB 2023053682 W IB2023053682 W IB 2023053682W WO 2023199211 A1 WO2023199211 A1 WO 2023199211A1
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WO
WIPO (PCT)
Prior art keywords
graphene
ink
conductive ink
ink according
particles
Prior art date
Application number
PCT/IB2023/053682
Other languages
French (fr)
Inventor
Patrick Muller
Original Assignee
Graphenaton Technologies Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graphenaton Technologies Sa filed Critical Graphenaton Technologies Sa
Publication of WO2023199211A1 publication Critical patent/WO2023199211A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0806—Silver
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/001—Conductive additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C08K3/042—Graphene or derivatives, e.g. graphene oxides

Definitions

  • the present invention relates to a conductive ink comprising graphene, in particular a conductive ink arranged to conduct an electric current.
  • Graphene is a thin and strong material known to those skilled in the art. Graphene is a single layer of carbon atoms, tightly bound together in a honeycomb crystal lattice that is the basic structural element of industrial and manufacturing applications of carbon, including graphite, charcoal and nanotubes of carbon.
  • the aim of the present invention is to propose a conductive ink based on graphene whose properties allow good conductivity, low thickness and controlled cost.
  • a conductive ink comprising graphene comprises in mass fraction, in the liquid state, between 20% and 40% of graphene, from 5% to 40% of acrylic resin and from 10% to 30% of solvents and 2 to 20% dispersant, and in the solid state, at least 50% graphene characterized in that it contains metallic pigments.
  • the ink contains between 5% and 25% metallic pigments, in particular silver or copper pigments.
  • graphene is composed of particles of at least two different particle sizes.
  • the ink comprises particles with a particle size of 1 to 3 microns.
  • the thickness of the ink, once dry is less than 10 microns.
  • the ink is arranged to heat when an electrical voltage is applied.
  • graphene is composed of at least two types of particles with different particle sizes.
  • At least one of the graphene particles has a particle size of 1 to 3 microns.
  • the conductive ink is used to make a diode, photovoltaic cell, battery or electrothermal foil.
  • the conductive ink comprises in mass fraction, in the liquid state, between 20% and 30% of graphene , from 10% to 30% acrylic resin and from 10% to 20% solvents and 5% to 15% dispersant, and in the solid state, at least between 50% and 60% graphene as well as between 5% and 20% metallic silver pigments.
  • the conductive ink applied to the heating film is arranged to conduct electrical energy between an anode and a cathode and thus supply current to the heating film.
  • the conductive ink acts as electrodes.
  • the heating film having to be as thin as possible less than 0.4mm
  • the graphene used in this conductive ink is composed of graphene particles with a particle size of 1 to 3 microns, and in certain cases, of at least two types of particles with different particle sizes, for example composed of graphene particles with a particle size of 1 to 3 microns and graphene particles with a particle size of 7 to 10 microns.
  • the conductive ink can be placed in a film connected either to direct current or to alternating current, without having any impact on the heating performance of the heating film.

Abstract

The invention relates to a conductive ink comprising graphene, the ink comprising, in mass fraction, in the liquid state, between 20% and 40% graphene, 5% to 40% acrylic resin, and 10% to 30% solvents and 2% to 20% dispersant, and, in the solid state, at least 50% graphene, characterised in that it comprises metal pigments.

Description

ENCRE CONDUCTRICE COMPORTANT DU GRAPHENE CONDUCTIVE INK COMPRISING GRAPHENE
DOMAINE TECHNIQUE TECHNICAL AREA
La présente invention se rapporte à une encre conductrice comportant du graphène en particulier une encre conductrice agencée pour conduire un courant électrique. The present invention relates to a conductive ink comprising graphene, in particular a conductive ink arranged to conduct an electric current.
Le graphène est un matériau fin et résistant connu de l'homme du métier. Le graphène est une couche unique d'atomes de carbone, étroitement liés dans un réseau cristallin en nid d'abeille qui est l'élément structurel de base des applications industrielles et manufacturières du carbone, notamment le graphite, le charbon de bois et les nanotubes de carbone. Graphene is a thin and strong material known to those skilled in the art. Graphene is a single layer of carbon atoms, tightly bound together in a honeycomb crystal lattice that is the basic structural element of industrial and manufacturing applications of carbon, including graphite, charcoal and nanotubes of carbon.
Aujourd’hui, il est très courant d’utiliser du graphite qui est appelé à tort graphène et les propriétés chimiques de ce matériau étant difficilement maîtrisables, le rendement n’est pas toujours au rendez-vous. Today, it is very common to use graphite which is wrongly called graphene and the chemical properties of this material being difficult to control, the performance is not always there.
En règle générale, il est aujourd’hui gens font surtout usage d’encres utilisant le graphène avec un faible dosage de graphène. As a general rule, today people mainly use inks using graphene with a low dosage of graphene.
ÉTAT DE LA TECHNIQUE STATE OF THE TECHNIQUE
Il est aujourd’hui communément utilisé des métaux du type cuivre ou argent pour conduire du courant. Ces métaux sont de bons conducteurs mais coûtent chers. Today, metals such as copper or silver are commonly used to conduct current. These metals are good conductors but are expensive.
RÉSUMÉ DE L’INVENTION SUMMARY OF THE INVENTION
Le but de la présente invention est de proposer une encre conductrice à base de graphène dont les propriétés permettent une bonne conductibilité, une faible épaisseur et un coût maitrisé. The aim of the present invention is to propose a conductive ink based on graphene whose properties allow good conductivity, low thickness and controlled cost.
Selon la présente invention, une encre conductrice comportant du graphène comporte en fraction massique, à l’état liquide, entre 20% et 40% de graphène, de 5% à 40% de résine acrylique et de 10% à 30% de solvants et 2 à 20% de dispersant, et à l’état solide, au moins 50% de graphène caractérisé en ce qu’elle comporte des pigments métalliques. Dans une forme d’exécution, l’encre comporte entre 5% et 25% de pigments métalliques, notamment des pigments l’argent ou de cuivre. According to the present invention, a conductive ink comprising graphene comprises in mass fraction, in the liquid state, between 20% and 40% of graphene, from 5% to 40% of acrylic resin and from 10% to 30% of solvents and 2 to 20% dispersant, and in the solid state, at least 50% graphene characterized in that it contains metallic pigments. In one embodiment, the ink contains between 5% and 25% metallic pigments, in particular silver or copper pigments.
Dans une forme d’exécution préférentielle, le graphène est composé de particules d’au moins deux granulométries différentes. In a preferred embodiment, graphene is composed of particles of at least two different particle sizes.
Toujours selon cette forme d’exécution préférentielle, l’encre comporte des particules d’une granulométrie de 1 à 3 microns. Still according to this preferred embodiment, the ink comprises particles with a particle size of 1 to 3 microns.
Dans une forme d’exécution, l’épaisseur de l’encre, une fois sèche est inférieur à 10 microns. In one embodiment, the thickness of the ink, once dry, is less than 10 microns.
Dans une forme d’exécution, l’encre est agencée pour chauffer lorsqu’une tension électrique est appliquée. In one embodiment, the ink is arranged to heat when an electrical voltage is applied.
Dans une autre forme d’exécution, le graphène est composé d’au moins deux types de particules à granulométrie différente. In another embodiment, graphene is composed of at least two types of particles with different particle sizes.
Selon cette autre forme d’exécution, au moins une des particules de graphène a une granulométrie de 1 à 3 microns. According to this other embodiment, at least one of the graphene particles has a particle size of 1 to 3 microns.
Dans une forme d’application, l’encre conductrice est utilisée pour fabriquer une diode, une cellule photovoltaïque, une batterie ou une feuille électrothermique. In one application form, the conductive ink is used to make a diode, photovoltaic cell, battery or electrothermal foil.
DESCRIPTION DÉTAILLÉE DE L’INVENTION DETAILED DESCRIPTION OF THE INVENTION
Dans le cadre de l’application d’une encre conductrice selon la présente invention, sur une structure électrothermique multicouche, ou film chauffant, l’encre conductrice comporte en fraction massique, à l’état liquide, entre 20% et 30% de graphène, de 10% à 30% de résine acrylique et de 10% à 20% de solvants et 5% à 15% de dispersant, et à l’état solide, au moins entre 50% et 60% de graphène ainsi que entre 5% et 20% de pigments métalliques d’argent. In the context of the application of a conductive ink according to the present invention, on a multilayer electrothermal structure, or heating film, the conductive ink comprises in mass fraction, in the liquid state, between 20% and 30% of graphene , from 10% to 30% acrylic resin and from 10% to 20% solvents and 5% to 15% dispersant, and in the solid state, at least between 50% and 60% graphene as well as between 5% and 20% metallic silver pigments.
L’encre conductrice appliquée au film chauffant est agencée pour conduire l’énergie électrique entre une anode et une cathode et ainsi alimenter en courant le film chauffant. L’encre conductrice fait office d’électrodes. Dans cet exemple, le film chauffant devant être le plus fin possible inférieur à 0.4mm, le graphène utilisé dans cette encre conductrice est composé de particules de graphène d’une granulométrie de 1 à 3 microns, et dans certains cas, d’au moins deux types de particules à granulométrie différente, par exemple composé de particules de graphène d’une granulométrie de 1 à 3 microns et de particules de graphène d’une granulométrie de 7 à 10 microns. The conductive ink applied to the heating film is arranged to conduct electrical energy between an anode and a cathode and thus supply current to the heating film. The conductive ink acts as electrodes. In this example, the heating film having to be as thin as possible less than 0.4mm, the graphene used in this conductive ink is composed of graphene particles with a particle size of 1 to 3 microns, and in certain cases, of at least two types of particles with different particle sizes, for example composed of graphene particles with a particle size of 1 to 3 microns and graphene particles with a particle size of 7 to 10 microns.
L’encre conductrice peut être disposée dans sur un film connecté soit à un courant continu soit à un courant alternatif, sans pour autant avoir d’impact sur les performances de chauffe du film chauffant. Bien que l'invention ait été décrite selon un mode de réalisation particulier, elle n'y est nullement limitée, et des variantes peuvent y être apportées, ainsi que des combinaisons des variantes décrites concernant notamment l'épaisseur de l’encre sur un support sans pour autant sortir du cadre de la présente invention. The conductive ink can be placed in a film connected either to direct current or to alternating current, without having any impact on the heating performance of the heating film. Although the invention has been described according to a particular embodiment, it is in no way limited thereto, and variants can be made, as well as combinations of the variants described concerning in particular the thickness of the ink on a support without departing from the scope of the present invention.

Claims

REVENDICATIONS
1. Encre conductrice comportant du graphène, l’encre comportant en fraction massique, à l’état liquide, entre 20% et 40% de graphène, de 5% à 40% de résine acrylique et de 10% à 30% de solvants et 2 à 20% de dispersant, et à l’état solide, au moins 50% de graphène caractérisé en ce qu’elle comporte des pigments métalliques. 1. Conductive ink comprising graphene, the ink comprising in mass fraction, in the liquid state, between 20% and 40% graphene, from 5% to 40% acrylic resin and from 10% to 30% solvents and 2 to 20% dispersant, and in the solid state, at least 50% graphene characterized in that it contains metallic pigments.
2. Encre selon la revendication 1 , comportant entre 5% et 25% de pigments métalliques, notamment des pigments l’argent. 2. Ink according to claim 1, comprising between 5% and 25% of metallic pigments, in particular silver pigments.
3. Encre selon la revendication 1 ou 2, caractérisée en ce que le graphène est composé de particules d’au moins deux granulométries différentes. 3. Ink according to claim 1 or 2, characterized in that the graphene is composed of particles of at least two different particle sizes.
4. Encre selon la revendication 3, comportant des particules d’une granulométrie de 1 à 3 microns. 4. Ink according to claim 3, comprising particles with a particle size of 1 to 3 microns.
5. Encre selon l’une des revendications précédentes, dont l’épaisseur, une fois sèche est inférieur à 10 microns. 5. Ink according to one of the preceding claims, the thickness of which, once dry, is less than 10 microns.
6. Utilisation de l’encre selon les revendications 1 à 5, pour fabriquer une diode, une cellule photovoltaïque, une batterie, une feuille électrothermique. 6. Use of the ink according to claims 1 to 5, to manufacture a diode, a photovoltaic cell, a battery, an electrothermal sheet.
PCT/IB2023/053682 2022-04-12 2023-04-11 Conductive ink comprising graphene WO2023199211A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CHCH000422/2022 2022-04-12
CH000422/2022A CH719595A1 (en) 2022-04-12 2022-04-12 Conductive ink containing graphene.

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WO2023199211A1 true WO2023199211A1 (en) 2023-10-19

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7763187B1 (en) * 2007-08-23 2010-07-27 Oceanit Laboratories, Inc. Carbon nanotubes-reinforced conductive silver ink
WO2013074709A1 (en) * 2011-11-14 2013-05-23 Vorbeck Materials Graphene compositions
CN104177924A (en) * 2013-05-28 2014-12-03 北京中科纳通电子技术有限公司 Graphene-containing low-temperature sintered inkjet nano silver conductive ink
CN104292983A (en) * 2013-07-19 2015-01-21 海门市海菱碳业有限公司 Conductive printing ink
CN110577771A (en) * 2019-09-17 2019-12-17 宁波石墨烯创新中心有限公司 conductive ink, RFID antenna, electronic tag and preparation method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104263082B (en) * 2014-08-29 2017-05-24 南京航空航天大学 Graphene organic silver conductive printing ink and preparation method thereof
CN107502066A (en) * 2017-06-14 2017-12-22 厦门信达光电物联科技研究院有限公司 A kind of graphene/metal nanobelt composite conducting ink and its preparation method and application
CN111849253A (en) * 2020-08-07 2020-10-30 河南墨特石墨烯科技有限公司 Graphene heating water-based ink and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7763187B1 (en) * 2007-08-23 2010-07-27 Oceanit Laboratories, Inc. Carbon nanotubes-reinforced conductive silver ink
WO2013074709A1 (en) * 2011-11-14 2013-05-23 Vorbeck Materials Graphene compositions
CN104177924A (en) * 2013-05-28 2014-12-03 北京中科纳通电子技术有限公司 Graphene-containing low-temperature sintered inkjet nano silver conductive ink
CN104292983A (en) * 2013-07-19 2015-01-21 海门市海菱碳业有限公司 Conductive printing ink
CN110577771A (en) * 2019-09-17 2019-12-17 宁波石墨烯创新中心有限公司 conductive ink, RFID antenna, electronic tag and preparation method

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