Abstract:
The present invention provides a conductive material comprising: (A) a π-conjugated polymer, and (B) a dopant polymer which contains one or more repeating units selected from “a1” to “a4” respectively represented by the following general formula (1) and has a weight-average molecular weight in the range of 1,000 to 500,000, (C) a nanoparticle which is selected from a gold nanoparticle, a silver nanoparticle, and a platinum nanoparticle and has a particle diameter of 1 to 200 nm. There can be provided a conductive material that has excellent film-formability and also can form a conductive film having high transparency and conductivity, superior flexibility and flatness when the film is formed from the material.
Abstract:
A thermochromic device includes a film and a number of vanadium dioxide nanowires disposed within the film. Each of the number of vanadium dioxide nanowires may have an aspect ratio between 10 and 500. The vanadium dioxide nanowires may have a length between 1 micrometer and 10 micrometers. The vanadium dioxide nanowires may have a non-conducting to conductor phase change temperature between 20 degrees Celsius and 60 degrees Celsius.
Abstract:
The present invention provides a graphene polymer conductive film and a method of manufacturing the graphene polymer conductive film. The method uses a graphene conductive polymer as conductive filler such that the drawbacks of the conventional conductive film such as exceeded filler content, expensive, complex manufacturing process and high environment pollution. The manufacture of graphene uses the method of in situ polymerization such that the conductive polymer and the graphene are distributed more uniformly, the produced graphene conductive polymer is with good stability, and the conductivity is proved. The present invention further realizes size control of the graphene conductive polymer in the process of manufacturing the graphene conductive polymer through adjusting the ratio of raw materials of the graphene and the conductive monomers. The graphene polymer conductive film produced by the present invention has advantages of high conductivity, environment friendly, etc., and could be applied in a thin film transistor liquid crystal display for substituting conductive golden film or conductive silver film, or applied in connecting superfine circuitry.
Abstract:
The invention provides a conductive full vulcanized thermoplastic elastomer and its preparation method, and relates to the technical field of full vulcanized thermoplastic elastomer. The full vulcanized thermoplastic elastomer is obtained by melt-blending components including rubber particles having crosslinking structure with mean particle diameter of 0.02 to 1 μm, carbon nanotubes as conductive fillers and thermoplastic plastics once, wherein the weight ratio of the rubber particles and the thermoplastic plastics is from 30:70 to 75:25 and the content of conductive fillers is from 0.3 to 10 weight parts based on the total weight of rubber particles and thermoplastic plastics of 100 weight parts. The resulting conductive full vulcanized thermoplastic elastomers have low content of conductive fillers and excellent combination performances. It can be prepared by conventional rubber processing methods and can be used to produce electronic production equipment, means, electronic instrument, instrument housing and decorative materials of clean production workshop having static resistance, electro magnetic interference resistance and clean requirement.
Abstract:
Provided is a latex composition including a latex that includes a polymer having a tetrahydrofuran-insoluble component content of at least 1 mass % and no greater than 75 mass % and carbon nanotubes that have an average diameter (Av) and a diameter distribution (3σ) satisfying a relationship 0.60>3σ/Av>0.20. A composite material and a conductive formed product obtainable using the latex composition exhibit superior conductivity.
Abstract:
Carbon nanotubes that can be used in various materials and a dispersion liquid thereof are provided. The carbon nanotubes have amounts of carbon monoxide desorption and carbon dioxide desorption at from 150° C. to 950° C. in temperature programmed desorption that are within specific ranges.
Abstract:
A method and resins for use with three-dimensional printing systems and/or other energy-curing devices to create 3-D objects having electrical conductivity. The resins comprise an initiator, a photopolymerizable agent, and a nanocarbon, particularly, single-walled carbon nanotubes. The initiator, photopolymerizable agent, and nanocarbon are mixed and agitated without fully solubilizing the nanocarbon so as to maintain the electrically conductive property.
Abstract:
A nanocomposite is provided including nonspherical silica nanoparticles dispersed in a curable resin or a curing agent, where the nanocomposite contains less than 2% by weight solvent. A composite is also provided including from about 4 to 70 weight percent of nonspherical silica nanoparticles dispersed in a cured resin, and a filler embedded in the cured resin. Further, a method of preparing a nanoparticle-containing curable resin system is provided including mixing from 10 to 70 weight percent of aggregated silica nanoparticles with a curable resin and optionally a dispersant, a catalyst, a diluent, a surface treatment agent, and/or a curing agent, to form a mixture. The mixture contains less than 2% by weight solvent. The method also includes milling the mixture in an immersion mill containing milling media to form a milled resin system including nonspherical silica nanoparticles dispersed in the curable resin.
Abstract:
[Problem] An object of the present invention is to provide a composite of silicon oxide nanoparticles and a silsesquioxane polymer, from which a cured film having a low refractive index can be formed inexpensively.[Means for Solution] Provided are a method of producing a composite of silicon oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst, and a composite produced by the method.
Abstract:
In accordance with the present invention, novel superparamagnetic magneto-dielectric polymer nanocomposites are synthesized using a novel process. The tunability of the dielectric/magnetic properties demonstrated by this novel highly-viscous solvent-free polymer nanocomposite that is amenable to building 3D electromagnetic structures/devices by using processes such as 3D printing, compression molding or injection molding, when an external DC magnetic field is applied, exceeds what has been previously reported for magneto-dielectric polymer nanocomposite materials.