Centre National De La Recherche Scientifique

Universitë De Bordeaux

Université De Pau Et Des Pays De L'adour

Capsulis

Le Centre National De La Recherche Scientifique

Universite Des Sciences Et Technologies (bordeaux 1)

L'école Supérieure Dephysique Et De Chimieindustrielles De La Ville De Paris

Arkema France

Universite Des Sciences Et Technologies

Philippe Poulin

Brigitte Vigolo

Cyril Aymonier

Patrice Gaillard

Thibaud Vaugien

Didier Roux

Renal Backov

Nicolas Mano

Lise Trouillet-Fonti

Annie Colin

Rénal Backov

Alain Penicaud

Corinne Degert

Rene Laversanne

René Laversanne

Célia Mercader

Cecile Zakri

Natacha Kinadjian

Maryse-Marie-Therese Maugey

Alain Derre

Sylvie Lacombe-Lhoste

Mathieu Tauban

Olivier Sanseau

Claude Coulon

Pascale Launois

Patric Bernier

Stéphane Ugazio

Mickaël Pruvost

Mickael Le Bechec

Suchithra Padmajan Sasikala

Simon Jestin

Patrick Bernier

Wilfrid Neri

Stephane Badaire

Jonathan Idier

Pierre Miaudet

Patrick Piccione

Carine Perrot

Stephane Ugazio

Marie FÖLLMER

Christian Collette

Pressure sensing layers, devices comprising same, pressure sensing monitors and composite materials comprising a) a porous matrix material comprising a siloxane polymer, comprising a closed porosity volume fraction, and, optionally, an open porosity volume fraction, and b) a conductive or semiconductive filler substantially present in the closed porosity volume fraction of the porous matrix material a), and films, coated substrates and multilayer structures comprising the composite material and the use thereof in pressure sensing devices.

Pressure sensing layer useful in pressure sensing devices and that comprises film comprising layer of porous matrix material

Some embodiments are directed to a method and device for reducing a component composed of at least one graphene oxide and a matrix consisting of at least one polymer, characterized in that the method includes at least the following steps: introducing a mixture of polymer(s) and graphene oxide GO into a reactor subject to a value of temperature T and a value of pressure P suitable for placing a fluid under supercritical or subcritical conditions for a given period, the temperature T being suitable for not degrading the polymer; and cooling the reactor and removing the obtained product R consisting of reduced polymer(s) and graphene oxide rGO.

Method and system for producing polymer/graphene oxide nanocomposites reduced by in situ reduction of graphene oxide

The invention relates to a method for manufacturing macroscopic fibers of titanium dioxide (TiO) by continuous extrusion in a one-way flow, to the macroscopic fibers of TiOthat can be obtained by such a method, to the use of said fibers in heterogeneous photocatalysis for decontamination of organic pollutants from gaseous environments, and to a method for decontaminating gaseous environments, in particular air, using such fibers.

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Composite fibers including carbon nanotubes, at least one other type of particles provided in colloidal form and intimately and evenly mixed with the carbon nanotubes wherein the particles are evenly dispersed throughout the whole body of the fibers.

Composite fibers including at least carbon nanotubes, methods for obtaining same and use thereof

A method of manufacturing composite fibers comprising two distinct layers having different compositions and physico-chemical properties and controlled, homogenous thicknesses, wherein one of two layers comprises carbon nanotubes and the composite fibers are obtained from carbon nanotube fibers and a first solution of a selected concentration of colloidal particles intended to constitute the second layer, comprising the following steps: placing the fibers in contact, by lateral surfaces thereof, with a surface of a second solution which is adapted to chemically cause aggregation of the colloidal particles and is completely or partially immersed in the second solution, the immersed thickness of the fibers defining the immersion area, placing the thus pre-coated fibers in contract, on the same lateral surface, with a surface of the first colloidal particle solution and immersed in it at most up to the immersion area to locally form a colloidal gel with a fixed thickness determined by the concentration of the first solution, separating the fibers covered in the first solution, and drying and/or evaporating the solvent of the first solution.

Composite fibers and asymmetrical fibers based on carbon nanotubes and colloidal particles

The invention relates to a method for the production of composite fibers with an increased content of colloidal particles, made from a pre-fiber, comprising a polymeric binder and colloidal particles, during which the chemical structure of the polymeric binder is degraded at a temperature of the order of ambient temperature such as to at least partially eliminate the above. The invention further relates to a fiber comprising a polymeric binder and colloidal particles, combining an excellent mechanical strength and a content of colloidal particles greater than 70% by mass.

Method for the production of fibres with a high content of colloidal particles and composite fibres obtained thus

The invention relates to a method for dissolving carbon nanotubes consisting in reducing the nanotubes in such a way that the nanotubes which are negatively charged with positive counter-ions are obtainable. The invention is used, in particular for preparing compounds or carbon nanotubes films.

Method for dissolving carbon nanotubes and the use thereof

The invention concerns a method for obtaining fibers and strips from colloidal particles, characterized in that it consists in: 1) dispersing said particles in a solvent optionally using a surfactant; 2) injecting the resulting dispersion solution through at least an orifice emerging into a flow of an external solution, preferably, having a higher viscosity than said dispersion, the viscosity levels being measured in the same temperature and pressure conditions, so as to cause said particles to agglomerate into fibers or strips by destabilizing the particle dispersions and optionally aligning said particles.

Method for obtaining macroscopic fibres and strips from colloidal particles and in particular carbon nanotubes

The invention concerns a method for reforming composite fibres comprising colloidal particles and at least a binding and/or crosslinking polymer, characterised in that it comprises: means for deforming, by cold process at room temperature or at a temperature slightly higher than room temperature, said polymer of said fibre, and means for applying, on said fibre, mechanical stresses.

Composite fibre reforming method and uses

The invention concerns novel media in the form of complex dispersions, method for preparing same and their uses. Said media consist of a first medium in the form of droplets wherein is dispersed a phase containing organized double layers of surfactants, preferably in the form of multilamellar vesicles, said droplets being in emulsion in a second medium called continuous phase non-miscible with the first medium. Said media can be used as base for cosmetic compositions. They can contain active principles, in particular for controlling their release and/or protecting and/or controlling their pH. They can also be used to make polymer microspheres containing an active principle. They are also useful as antigen vector.

Media in the form of complex dispersions, method for preparing same and uses

Growing community of inventors

Talence, France

Philippe Poulin