摘要:
Aqueous, printable compositions comprising carbon nanotubes and a polymeric dispersing agent, wherein at least one fifth of the carbon nanotubes have a molecular structure comprising a plurality of stacked and rolled graphene layers; processes for preparing such compositions, methods of use and electrically conductive coatings prepared therewith.
摘要:
The present invention relates to a process for producing a Pickering emulsion comprising water, a solvent not miscible with water, and also, preferably sterically, stabilized silver nanoparticles, for producing conductive coatings. The invention further relates to a process for coating all or part of the area of surfaces, in particular with a Pickering emulsion according to the invention, where the resultant coating in particular has high electrical conductivity and advantageously can also be transparent.
摘要:
An electrically conductive printable composition comprises silver particles, a dispersing agent, a solvent, a first surfactant, comprising a hydrocarbon based surfactant, and a second surfactant, comprising a fluoro-based surfactant.
摘要:
Apparatus and method for producing electrically conducting nanostructures by means of electrospinning, the apparatus having at least a substrate holder (1), a spinning capillary (2), connected to a reservoir (3) for a spinning liquid (4) and to an electrical voltage supply (5), an adjustable movement unit (6, 6′) for moving the spinning capillary (2) and/or the substrate holder (1) relative to one another, an optical measuring device (7) for monitoring the spinning procedure at the outlet of the spinning capillary (2), and a computer unit (8) for controlling the drive of the spinning capillary (2) relative to the substrate holder (1) in accordance with the spinning procedure.
摘要:
Method for producing small and micro conductive structures on surfaces by (hot) stamping and/or nanoscale imprinting microstructures on the surfaces, targeting conductive material into the channels thus created with the aid of capillary action, and appropriately after-treating the conductive material.
摘要:
Process for preparing A silver-containing, disperse, water-containing formulation useful for producing electrically conductive and/or optically reflective coatings, which comprises (i) reacting a silver salt solution with a solution containing hydroxide ions, wherein at least one of said solutions comprises a polymeric dispersant, to produce an Ag2O sol, (ii) reacting the Ag2O sol obtained from step i) with a reduction agent, and (iii) purifying the solution obtained from step ii).
摘要:
A silver-containing, disperse, water-containing formulation and its use to produce electrically conductive and/or optically reflective coatings is described. The formulation contains at least a) 0.5 to 30 parts by wt. of silver metal particles with an effective diameter of at most 150 nm, preferably at most 100 nm, particularly preferably 40 to 80 nm, with a bimodal size distribution, b) 50 to 99.5 parts by wt. of water and optionally up to 30 parts by wt. of solvent, c) 0.01 to 10 parts by wt. of at least one, in particular polymeric, dispersant, d) 0 to 5 parts by wt. of film-producer, e) 0 to 5 parts by wt. of additives, f) 0 to 5 parts by wt. of conductive polymers, and has a viscosity of at most 150 mPa.s.
摘要:
Process for preparing A silver-containing, disperse, water-containing formulation useful for producing electrically conductive and/or optically reflective coatings, which comprises (i) reacting a silver salt solution with a solution containing hydroxide ions, wherein at least one of said solutions comprises a polymeric dispersant, to produce an Ag2O sol, (ii) reacting the Ag2O sol obtained from step i) with a reduction agent, and (iii) purifying the solution obtained from step ii).
摘要:
The present invention relates to an oxygen-consuming electrode comprising at least one support element in the form of a sheet-like structure and a coating comprising a gas diffusion layer and a catalytically active component, wherein the oxygen-consuming electrode is additionally coated with a fluoropolymer which is soluble in solvents.
摘要:
The present invention relates to a medical device which has at least one coating which is obtained starting from an aqueous dispersion, the aqueous dispersion comprising at least one nonionically stabilized polyurethaneurea and at least one silver-containing constituent.