45 results about "Polyaniline nanowires" patented technology

A preparation method of polyaniline nanometer line relates to a polymeric material, supplying a preparation method of polyaniline nanometer line based on the polymerization on suspended interface, the method is of gentle reaction conditions, high efficiency, and suitable for industrial production. A acidic aqueous solution containing 1mol / L hydrion concentration is added into a container to do external phase before water soluble dispersing agent is fed into and the water soluble dispersing agent concentration is 1 to 2 g / L in the terminal system; organic solution containing 0.1 to 1 mol / L aniline monomer is added into the acidic aqueous solution, then an acidic aqueous solution with the same mole of oxidant as aniline is added into the aqueous solution under the reaction temperature from 0 DEG C to room temperature, and the volume ration between organic phase and the acidic aqueous solution is 1 / 20 to 1 / 5; the product is filtrated after 2 to 48 hours of reaction, then the filtration is washed to neutral by distilled water, and washed with alcohol until the filtration is colorless and transparent; the product is baked under 40 to 60 DEG C, finally the polyaniline nanometer line with diameters between 40 to 90 nm is acquired.

The invention relates to a method for preparing a polyaniline nano wire / nano particle complex system. The method is characterized in that the method takes fat-soluble sucrose octaacetate containing eight branch chains as a template and a homogeneous system formed by water and water-soluble organic solvents as the reaction medium and prepares a polyaniline nano wire / nano particle complex system byutilizing a template polymerization method and taking hydrochloric acids as doping acids, which facilitates the utilization of branch chains of sucrose octaacetate molecules to initiate the stereotactic polymerization of aniline to prepare the polyaniline nano wire / nano particle complex system; moreover, the use of water and water-soluble organic solvents as a reaction system avoids the environmental pollution of fat phase organic solvents in interfacial polymerization and emulsion polymerization; moreover, the water-soluble organic solvents are also good solvents for a plurality of polymers,thereby providing a new research method for preparing polyaniline conductive composite materials and having better use value.

A preparation method for polyaniline nano-wires with big aspect ratio is as folloes: aniline monomers dissolve in an organic solvent to be made into an aniline organic phase with 0.08 to 0.32mol / L concentration; weak oxidants dissolve in hydrochloric acid to be made into a water phase with 0.08 to 0.32mol / L concentration; by the molar ratio of aniline: weak oxidants =1:0.25 to1, the high intensity organic phase or the water phase is firstly added in a reactor under the temperature of 0 DEG C to the room temperature, and then is added with the low intensity water phase or the organic phase to react for 15 to 35 hours to obtain a solid product; the solid product is washed to neutrality, and is dried in vacuum for 15 to 20 hours under the temperature of 60 to 70 DEG C. The preparation methodhas the advantages of simple process and equipment, low energy consumption and big aspect ration of the obtained polyaniline nano-wires.

The invention discloses a polyaniline nanowire / graded porous carbon composite material as well as a preparation method and application thereof. The method is characterized in that a hollow mesoporous silicon / carbon compound serves as a carrier; a polyaniline nanowire array grows on the surface of the carrier with a chemically oxidative copolymerization method; and then, a hollow mesoporous silicon template is removed by hydrofluoric acid to obtain the polyaniline nanowire / graded porous carbon composite material. The composite material prepared by the method can better keep the mesoporous duct of graded porous carbon, and the specific surface area and the hole volume of the composite material are improved so as to enhance the electrochemical stability and the multiplying power characteristics of the composite material. The concentration of aniline in reactant is regulated to control the content and the morphological structure of the polyaniline in the composite material so as to affect the electrochemical performance of the composite material. The preparation method has the active effects of simple preparation process and low cost, the content of each component in the composite material is easy to regulate, and large-scale production is easy to carry out. The prepared electrode material has the advantages of high specific capacity, favorable circulating stability and multiplying power characteristics.

The invention provides a sponge composite conductive elastic material, a preparation method thereof and an application in the antistatic field, and relates to the technical field of antistatic materials. The sponge composite conductive elastic material provided by the invention comprises a polyurethane sponge and graphene and polyaniline nanowires attached to the polyurethane sponge. In the present invention, the polyaniline nanowires and graphene attached to the surface of the sponge have conductivity, which can lead away the generated static charge and avoid the accumulation of static electricity, wherein the polyaniline nanowires enable the surface of the elastic conductive material to be nanostructured, Compared with the non-nanostructured polyaniline surface, the contact area of ​​the material surface is increased, and more static charges can be conducted away. The conductivity of the sponge composite conductive elastic material provided by the invention is greater than 0.1mS / cm, and the stronger the conductivity, the easier it is to conduct static charges away. Therefore, the sponge composite conductive elastic material provided by the invention has excellent antistatic performance and can be used in It is widely used in the field of anti-static.

The invention discloses a composite electrode which prepares polyaniline nano-wires with high purity and a method for preparing the composite electrode, which belongs to the technique for preparing polyaniline nano-wire materials. A substrate of the composite electrode is stainless steel, titanium, nickel, cobalt, aluminum, iron, copper, graphite or glassy carbon, and thin film of polysulfone, polyether sulfone, polyimide or polyether imide is compounded on the substrate. The method for preparing the composite electrode comprises following steps: dissolving the polysulfone, the polyether sulfone, the polyimide or the polyether imide in N, N-dimethylacetamide, N, N-dimethylformamide, N-methyl pyrrolidone, dimethyl sulfoxide or m-cresol, preparing even and transparent casting solution, coating the casting solution on the surface of a substrate electrode, then, rapidly dipping the electrode in coagulation bath to finish phase inversion, and obtaining the composite electrode. The method ofthe invention has the advantages that the composite electrode is used as a working electrode to prepare the polyaniline nano-wires, which solves the problem that polyaniline particles exist in the polyaniline nano-wires and increases the purity of the polyaniline nano-wires.

The present invention provides a preparation method of nitrogen-doped porous carbon nanofiber material with high specific surface area. Electrospun polyacrylonitrile / polyaniline composite nanofibers are treated at an appropriate temperature in an inert atmosphere to obtain high specific surface area carbon nanofibers. Nitrogen-doped porous carbon nanofibrous materials. Compared with the prior art, the invention directly uses electrospun polyacrylonitrile nanofibers as a base to grow polyaniline nanowires to synthesize electrospun polyacrylonitrile / polyaniline composite nanofibers. In addition to the high content of nitrogen atoms, the composite nanofiber also has a rich pore structure on its surface. The composite nanofiber can obtain nitrogen-doped porous carbon nanofiber material with high specific surface area after heat treatment. The material is an electrode material of a supercapacitor and has very good electrochemical properties. In particular, the preparation method of the supercapacitor electrode material of the present invention has simple preparation process, short process, low equipment dependence, and is suitable for large-scale industrial production.