Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L21/00—Compositions of unspecified rubbers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
  • H01B1/20—Conductive material dispersed in non-conductive organic material
  • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/18—Manufacture of films or sheets
• • 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
  • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
  • C08K3/20—Oxides; Hydroxides
  • C08K3/22—Oxides; Hydroxides of metals
• • 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
  • C08K3/38—Boron-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L29/00—Compositions of 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 an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
  • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
  • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
  • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
  • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
  • H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
  • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
  • H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
  • H01B1/124—Intrinsically conductive polymers
  • H01B1/127—Intrinsically conductive polymers comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
• • 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
• • 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
  • C08K3/041—Carbon nanotubes
• • 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
  • C08K7/00—Use of ingredients characterised by shape
  • C08K7/02—Fibres or whiskers
  • C08K7/04—Fibres or whiskers inorganic
  • C08K7/06—Elements
• • 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
  • C08K7/00—Use of ingredients characterised by shape
  • C08K7/22—Expanded, porous or hollow particles
  • C08K7/24—Expanded, porous or hollow particles inorganic
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of 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
  • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
  • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
  • C09K2323/04—Charge transferring layer characterised by chemical composition, i.e. conductive
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31507—Of polycarbonate
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31533—Of polythioether

Definitions

• the present invention relates to a novel polymer composition having conductive properties, a process for preparing such a composition, a transparent conductive film resulting from the filming of such a composition, and a process for preparing a such film. Also included in the invention are articles, and more particularly electronic devices coated with such compositions or films.
• Transparent conductive electrodes having both high transmittance and electrical conductivity properties are currently undergoing considerable development in the field of electronic equipment, this type of electrodes being increasingly used in photovoltaic cells, screens liquid crystal displays, touch screens, organic light-emitting diodes (OLEDs) or polymeric light-emitting diodes (PLEDs).
• OLEDs organic light-emitting diodes
• PLEDs polymeric light-emitting diodes
• compositions disclosed in the documents WO 2006/137846 and US 6,984,341 the latter notably disclosing compositions obtained from aqueous dispersions of polythiophene and of polyanionic compounds, such as polystyrenesulfonates, in the presence of additional additives chosen. among ketals, lactones, carbonates, cyclic oxides, diketones, anhydrides, aminocarbonic acids, phenols and inorganic acids.
• the application US 2009/0252967 relates to new transparent electrodes comprising a first layer consisting essentially of carbon nanotubes, covered with a second polymeric layer loaded with conductive particles, the electrodes obtained having improved electrical conductivity and roughness.
• the manufacturing process of these electrodes is nevertheless complex insofar as it requires a step of washing the layer of carbon nanotubes, as well as the application of a second polymeric layer.
• compositions comprising both an elastomer and / or a thermoplastic polymer, a conductive polymer and conductive or semiconducting fillers have also been described in the prior art (Applications WO 2009/117460, US 2010/0116527, EP 2036941 and WO 2010/112680). However, the transparency and the transmittance of the films obtained after drying of these compositions still have to be optimized.
• the inventors have now found, surprisingly, that it is possible to improve even more significantly the transparency and the transmittance of the films resulting from such compositions by the addition of structuring particles, the latter being particles of a specific nature and or metal oxide particles.
• structuring particles the latter being particles of a specific nature and or metal oxide particles.
• the addition of such structuring particles makes it possible to tighten the conductive network, and thus to obtain polymer compositions having improved transparency and electrical conductivity.
• compositions of the invention are prepared according to a method that is simple to implement, in comparison with the processes described in the prior art, said process not involving additional steps of washing or application of polymeric layers. additional. It is in fact a performance compromise difficult to achieve, all these advantages being obtained without negatively affecting the electrical properties of the film or conductive coating obtained, or even making significant improvements in terms of transparency and conductivity.
• compositions of the invention fulfill the following requirements and properties:
• compositions of the invention can be applied in thick layers (up to thicknesses of 15 ⁇ ), and having a great ease of implementation.
• the first object of the present invention is a composition comprising:
• cross-linked or non-crosslinked polymer particles selected from functionalized or non-functionalized particles of polystyrene, polycarbonate, polymethylenemelamine, said non-crosslinked polymer particles having a Tg> 80 ° C, glass particles, silica, and / or metal oxide particles selected from the following metal oxides: ZnO, MgO, MgAl 2 O 4 , the borosilicate particles, said particles (c) which may be either in powder form or in the form of dispersion in water and / or in a solvent,
• nanometric conductive or semi-conductive fillers in one or two dimensions dispersed or suspended in water and / or in a solvent, said fillers preferably having a form factor (length / diameter ratio)> 10 .
• crosslinked or non-crosslinked polymer particles selected from functionalized or non-functionalized particles of polystyrene, polycarbonate, polymethylenemelamine, said particles of uncrosslinked polymer having a Tg> 80 ° C, glass particles, silica particles, and / or metal oxide particles selected from the following metal oxides: ZnO, MgO, MgAl 2 0 4 , borosilicate particles ,
• the composition of the invention comprises at least one dispersion or suspension (a) of elastomer, said elastomer preferably being chosen from polybutadiene, polyisoprene, acrylic polymers and polychloroprene, the latter being able to optionally, a sulfonated polychloroprene, polyurethane, hexafluoropropene / difluoropropene / tetrafluoroethylene terpolymers, copolymers based on chlorobutadiene and methacrylic acid or based on ethylene and vinyl acetate, SBR (Styrene Butadiene Rubber) copolymers, SBS (Styrene Butadiene Styrene), SIS (Styrene Isoprene Styrene) and SEBS (Styrene Ethylene Butylene Styrene), isobutylene / isoprene copolymers,
• the composition of the invention may comprise at least one dispersion or suspension (a) of thermoplastic polymer, said thermoplastic polymer being chosen from polyesters, polyamides, polypropylene, polyethylene, chlorinated polymers such as polyvinyl chloride and vinylidene, fluorinated polymers such as polyfluoride vinylidene (PVDF), polyacetates, polycarbonates, polyether ether ketones (PEEK), polysulfides, ethylene / vinyl acetate copolymers.
• thermoplastic polymer being chosen from polyesters, polyamides, polypropylene, polyethylene, chlorinated polymers such as polyvinyl chloride and vinylidene, fluorinated polymers such as polyfluoride vinylidene (PVDF), polyacetates, polycarbonates, polyether ether ketones (PEEK), polysulfides, ethylene / vinyl acetate copolymers.
• the composition of the invention may comprise at least one dissolution (a) of polymer, said polymer being chosen from polyvinyl alcohols (PVOH), vinyl polyacetates (PVA), polyvinyl pyrrolidones ( PVP), polyethylene glycols.
• PVOH polyvinyl alcohols
• PVA vinyl polyacetates
• PVP polyvinyl pyrrolidones
• polyethylene glycols polyethylene glycols
• the conductive polymer (b) is a polythiophene, the latter being one of the most thermally and electronically stable polymers.
• a preferred conductive polymer is poly (3,4-ethylenedioxythiophene) -poly (styrenesulfonate) (PEDOT: PSS), the latter being stable to light and heat, easy to disperse in water, and free of water. environmental disadvantages.
• the conductive polymer (b) may be in the form of granules, a dispersion or a suspension in water and / or in a solvent, said solvent preferably being a polar organic solvent chosen from dimethylsulfoxide (DMSO ), N-methyl-2-pyrrolidone (NMP), ethylene glycol, tetrahydrofuran (THF), dimethylacetate (DMAc), dimethylformamide (DMF), the conductive polymer (b) being preferably dispersed or suspended in water, dimethylsulfoxide (DMSO) or ethylene glycol.
• DMSO dimethylsulfoxide
• NMP N-methyl-2-pyrrolidone
• THF tetrahydrofuran
• DMAc dimethylacetate
• DMF dimethylformamide
• the conductive polymer (b) being preferably dispersed or suspended in water, dimethylsulfoxide (DMSO) or ethylene glycol.
• Organic compounds also called “conductivity enhancers", the latter to improve the electrical conductivity of the conductive polymer, can also be added to the composition of the invention. These compounds may especially carry dihydroxy, polyhydroxy, carboxylic, amide and / or lactam functions, such as the compounds mentioned in US Pat. Nos. 5,766,515 and 6,984,341, which are here incorporated by reference. Compounds The most preferred organic or “conductivity enhancers” are sorbitol and glycerine.
• Said polymer particles (c) may be used in the form of a powder, or a dispersion or suspension in water and / or in a solvent chosen from the following polar organic solvents: dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), ethylene glycol, dimethylacetate (DMAc), dimethylformamide (DMF), acetone and alcohols such as methanol, ethanol, butanol and isopropanol , or a mixture of these solvents.
• DMSO dimethylsulfoxide
• NMP N-methyl-2-pyrrolidone
• DMAc dimethylacetate
• DMF dimethylformamide
• alcohols such as methanol, ethanol, butanol and isopropanol , or a mixture of these solvents.
• the charges (d) may be conductive fillers chosen from nanoparticles and / or nanofilaments of silver, gold, platinum and / or ITO (Indium Tin Oxide), and / or selected semiconductor fillers. among carbon nanotubes and nanoparticles based on graphene.
• the fillers (d) are carbon nanotubes dispersed in water and / or in a solvent chosen from the following polar organic solvents: dimethylsulfoxide (DMSO), N-methyl-2 pyrrolidone (NMP), ethylene glycol, dimethylacetate (DMAc), dimethylformamide (DMF), acetone and alcohols such as methanol, ethanol, butanol and isopropanol, or a mixture thereof solvents.
• DMSO dimethylsulfoxide
• NMP N-methyl-2 pyrrolidone
• DMAc dimethylacetate
• DMF dimethylformamide
• acetone and alcohols such as methanol, ethanol, butanol and isoprop
• Additives such as ionic or nonionic surfactants, wetting agents, rheological agents, such as thickening agents or fluidifying agents, adhesion promoters, dyes, crosslinking agents, may also be added to the composition. of the invention, to improve or modify the performance according to the intended end application.
• Another subject of the invention relates to a method for preparing a composition according to the invention comprising the following steps:
• step (ii) mixing the dispersion or suspension obtained in step (i) with a polythiophene conductive polymer (b) which may be in the form of granules, a dispersion or a suspension in water and / or in a solvent, said solvent possibly being a polar organic solvent miscible with the solvent used in step (i) and which may be chosen from dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP) ethylene glycol, dimethylacetate (DMAc), tetrahydrofuran (THF), dimethylformamide (DMF),
• DMSO dimethylsulfoxide
• NMP N-methyl-2-pyrrolidone
• DMAc dimethylacetate
• THF tetrahydrofuran
• DMF dimethylformamide
• step (iii) adding crosslinked or non-crosslinked polymer particles (c) to the dispersion obtained in step (ii), said particles possibly being in the form of a powder, a dispersion or a suspension in water and / or in a solvent-miscible polar organic solvent used in steps (i) and (ii) and which may be selected from dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), ethylene glycol, dimethylacetate (DMAc), dimethylformamide (DMF), acetone and alcohols such as methanol, ethanol, butanol and isopropanol, or a mixture of these solvents, said particles being chosen from functionalized or non-functionalized particles of polystyrene, polycarbonate, polymethylenemelamine, said non-crosslinked polymer particles having a Tg> 80 ° C, glass particles, silica particles, and / or oxide particles metal selected from the following metal oxides: ZnO, MgO, Mg
• a further object of the present invention is a transparent conductive film resulting from the filming of at least one polymer composition as defined according to the invention.
• the composition of the invention can therefore be deposited on a support, according to any method known to those skilled in the art, the most used techniques being spray coating, inkjet deposition, deposition dip coating, spin-coater deposition, impregnation deposition, slot-die deposition, doctor blade deposition, or flexo-etching, so as to obtain a film of which thickness can be between 300 nm and 15 ⁇ .
• the transparent conductive film of the invention may be prepared according to a process comprising the following steps:
• drying temperature necessarily having to, when the polymer particles (c) are non-crosslinked polymer particles, being lower than the glass transition temperature Tg of said non-crosslinked polymer particles contained in the composition applied during step (i '), this condition relating to the drying temperature making it possible to avoid the coalescence and diffusion of the particles (c) within the composition, and thus to provide good mechanical strength to the final film.
• a last object of the invention relates to an article comprising at least one flexible or rigid substrate coated with a composition as defined according to the invention, or a film as defined according to the invention, said substrate being selectable among glass, metal and flexible polymers, such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), polycarbonate (PC), polysulfone (PSU), phenolic resins, epoxies , polyesters, polyimides, polyetheresters, polyetheramides, polyvinyl (acetate), cellulose nitrate, cellulose acetate, polystyrene, polyolefins, polyamide, aliphatic polyurethanes, polyacrylonitrile, polytetrafluoroethylene (PTFE), polymethyl methacrylate (PMMA), polyarylate, polyetherimides, polyether ketones (PEK), polyether ether ketones (PEEK) and polyvinylidene fluoride (P
• the flexible or rigid substrate contained in the article as defined according to the invention may be coated with a conductive metal grid, the latter being made of gold, silver or platinum, or a grid of particles and / or self-assembled conductive metal filaments, the latter may be gold, silver or platinum.
• Said gate may have a thickness of between 0.01 and 1 ⁇ .
• the conductive metal grid may be deposited using an evaporation technique (PVD-CVD) or a printing technique such as slot-die deposition, doctor blade deposition, or deposition to engraved rolls.
• the composition of the invention may be deposited on a flexible or rigid transfer substrate before being transferred to one of the flexible or rigid substrates previously enumerated.
• the transfer substrate may be chosen from silicone or fluorinated films of polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and polyethersulfone (PES), and the transfer of said film to one of the flexible or rigid substrates may be carried out by rolling.
• the article of the invention may be an electronic device chosen from photovoltaic cells, liquid crystal displays, touch screens, flexible displays, light screens, electrophoretic displays, organic light-emitting diodes (OLEDs), polymeric light-emitting diodes (PLEDs) and electromagnetic shielding devices.
• OLEDs organic light-emitting diodes
• PLEDs polymeric light-emitting diodes
• the invention also comprises other provisions which will emerge from the additional description which follows, which relates to examples highlighting the properties of the compositions of the invention.
• the thickness of the transparent conductive films is measured on 50 ⁇ 50 mm test pieces using a Veeco Dektak 150 profilometer, by scanning the surface using the tip of the profilometer over a length of between 5 and 10 mm. mm.
• the measurements are carried out three times on each test piece.
• the total transmittance ie the light intensity passing through the film on the visible spectrum, is measured on 50 x 50 mm test pieces using a Perkin Elmer Lambda 35 spectrophotometer on a UV-spectrum. visible [300 nm - 900 nm].
• the average transmittance value over the entire visible spectrum this value corresponding to the average value of the transmittances on the visible spectrum. This value is measured every 10 nm.
• the Haze ratio is the ratio of diffuse transmittance to total transmittance. It is measured on 50 x 50 mm specimens, using a Perkin Elmer Lambda 35 spectrophotometer on a UV-visible spectrum [300 nm-900 nm].
• the Haze ratio can be defined by the following formula:
• the surface resistance (in ⁇ / D) can be defined by the following formula:
• the surface resistance is measured on specimens 20 ⁇ 20 mm using a 4-point surface conductivity meter, model Lucas Lab system Pro4, which inject a current between the external points. Gold contacts are previously deposited on the tips by CVD, to facilitate measurements.
• composition A is prepared as follows:
• Composition A prepared has a ratio by weight of carbon nanotubes / PEDOT: PSS of 1/17, a percentage by weight of carbon nanotubes of 0.5% relative to the mass of dry elastomer, and a solids content of 6 %.
• Composition A is then applied to a glass substrate using a film puller to form a film having a dry thickness (final thickness) of 2.2 ⁇ 0.2 ⁇ , the latter having been dried at room temperature. oven in a temperature range of 25 to 60 ° C in 30 minutes, and then vulcanized at 150 ° C for a period of 5 minutes.
• the properties of the transparent film obtained are as follows:
• 8.5 mg of Graphistrenght U100 ® MWNTs carbon nanotubes are dispersed in 12.04 g of a dispersion of PEDOT: PSS Clevios PH500 ® having a solids content of 1.2% and in 13.25 g of DMSO, at a rate of using a high shear mixer (Siverson L5M) at a speed of 8000 rpm for 2 hours.
• Composition B is then applied to a glass substrate using a film puller to form a film having a dry thickness (final thickness) of 2.5 ⁇ 0.2 ⁇ m, the latter having been dried at room temperature. oven in a temperature range of 25 to 60 ° C in 30 minutes, and then vulcanized at 150 ° C for a period of 5 minutes.
• the properties of the transparent film obtained are as follows:
• a high shear mixer Siverson L5M
• composition C thus prepared has a percentage by weight of polystyrene nanoparticles of 20% relative to the dry elastomer mass, and a solids content of 15%.
• Composition C is then applied to a glass substrate using a film puller to form a film having a dry thickness (final thickness) of 2.3 ⁇ 0.1 ⁇ , the latter having been dried at room temperature. oven in a temperature range of 25 to 60 ° C in 30 minutes, and then vulcanized at 150 ° C for a period of 5 minutes.
• the properties of the transparent film obtained are as follows:
• T - 93% at 550 nm and T mean 92% between 300 and

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