34results about "Conductive material" patented technology

Disclosed is a nano-composite material comprising fully separated nano-scaled graphene platelets (NGPs) dispersed in a matrix material, wherein each of the platelets comprises a sheet of graphite plane or multiple sheets of graphite plane and has a thickness no greater than 100 nm and the platelets have an average length, width, or diameter no greater than 500 nm. The graphene plates are present in an amount no less than 15% by weight based on the total weight of the platelets and the matrix material combined. Typically, the nanocomposite is electrically conductive with a bulk conductivity no less than 10 S/cm and more typically no less than 100 S/cm. Highly conductive NGP nanocomposites are particularly useful for fuel cell flow field plate (bipolar plate) and battery electrode applications. Nanocomposites with high NGP proportions can be used in automotive friction plates and aircraft brake components.

Fiber reinforced composite plastic materials for use in injection and compression molding and extrusion processing produced from waste materials, the composite material includes an effective amount of high melting point polymer fiber material and a sufficient amount of low melting point plastic material to coat and bind the high melting point fiber material together and method of producing same.

A method for producing a surface-treated silver-containing powder comprises vacuum freeze drying a dispersion liquid, which is obtained by dispersing silver or silver compound particles (a) in a solvent together with a surfactant (b) of an alkylamine type or an alkylamine salt type, or a phosphate type having a phosphorus content of 0.5 to 10% by mass so that the surfactant (b) is adsorbed in the surface of the silver or silver compound particles (a), thereby producing a silver-containing powder (c) whose surface is treated with the surfactant (b). Moreover, a silver paste is produced by dispersing the surface-treated silver-containing powder (c) in a solvent, or in a solvent with a resin.

Provided are a rubber composition for a tire cord topping, a breaker edge strip, a breaker cushion, or a strip adjacent to cords, which achieves a balanced improvement in handling stability, fuel economy, durability, ride quality, and adhesion; and pneumatic tires including the same. The rubber composition includes: an isoprene-based rubber; a phenol resin and/or an alkylphenol resin; and a partial condensate of HMMM and/or a partial condensate of HMMPME, wherein an amount of the isoprene-based rubber is 60% by mass or higher per 100% by mass of the rubber component; and a combined amount of the phenol resin and the alkylphenol resin is 2-3.9 parts by mass, a combined amount of the partial condensate of HMMM and the partial condensate of HMMPME is 0.5-5 parts by mass, and an amount of silica is at most 15 parts by mass, each per 100 parts by mass of the rubber component.

A conductive particle 30 which can be used for connecting a variety of adherends is provided, and the conductive particle 30 includes a resin particle 31, a first conductive particle disposed around the resin particle 31, a first resin coating 25 disposed on the periphery thereof and softer than the resin particle 31, and a second conductive thin film 36 disposed therearound; and if the surface part of, for example, an electrode 13 of an adherend that is to be connected is hard, a first resin coating 35 and the second conductive thin film 36 are destroyed by pressure to bring the second conductive thin film 36 in contact with the electrode 13 and a metal wiring 17. If the surface part of the electrode 13 is soft, the second conductive thin film on the surface side comes in contact with the electrode 13, which makes it possible for the particle to be used regardless of the surface state of an adherend, in other words, be used for connecting a variety of adherends

The present invention discloses an aqueous primer composition comprising: (A) an aqueous dispersion of a non-chlorine-based modified polyolefin comprising the dispersion of an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a), having a melting point of 120° C. or lower and a weight average molecular weight within the range of 50,000 to 150,000, in an aqueous medium; (B) a water-soluble or water-dispersible polyol resin; and (C) a pigment, wherein the solid content weight ratio of component (A) to component (B) is within the range of 20/80 to 85/15, and component (C) is contained within the range of 0.5 to 200 parts by weight based on 100 parts by weight of the total resin solid content in the composition; and a method for coating a plastic molded product using the aqueous primer composition.

This invention relates to a novel polymerization initiator capable of introducing an active amino proton into a polymerization starting terminal without losing polymerization activity, and a novel modified conjugated diene polymer being excellent in the interaction with a filler and capable of improving a low heat buildup of a rubber composition, and more particularly to a polymerization initiator being a diamine compound in which one amino group is protected with a silylating agent and an active proton of the other amino group is replaced with an alkali metal or an alkaline earth metal, and a modified conjugated diene polymer which can be produced by using such a polymerization initiator and is a homopolymer of a conjugated diene compound or a copolymer of a conjugated diene compound and an aromatic vinyl compound and has a residue derived from a diamine compound at its polymerization starting terminal.

Provided is an auto-thermal evaporative liquid-phase synthesis method for cathode material for battery, comprising the following steps: (1) Adding a synthetic raw material of cathode material into a solvent to obtain a mixture A, the synthetic raw material of the cathode material containing lithium source, adding an accelerant into the mixture A, which makes the mixture A achieve a strong auto-thermal reaction to release heat to evaporate the solvent, and obtaining a solid precursor of the cathode material; (2) Drying the precursor, sintering in an atmosphere furnace and obtaining the cathode material. The method is simple in process, low in energy consumption, requirements for equipment and cost, and is applicable to industrial mass production and application. The cathode material obtained through the method is stability in batch, easy to process, low in internal resistance and high in capacity and has an excellent charging and discharging performance.

Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI:

wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group.

The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article.

Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.

An electrically conductive composition and a fabrication method thereof are provided. The electrically conductive structure includes a major conductive material and an electrically conductive filler of an energy delivery character dispersed around the major conductive material. The method includes mixing a major conductive material with an electrically conductive filler of an energy delivery character to form a mixture, coating the mixture on a substrate, applying a second energy source to the mixture while simultaneously applying a first energy source for sintering the major conductive material to form an electrically conductive composition with a resistivity smaller than 10×10⁻³Ω·cm.

A high-strength high-conductivity rare earth copper-magnesium alloy contact wire comprises, by weight percentage, 0.1-0.8% of magnesium, 0.1-0.4% of nickel, 0.1-0.4% of zinc, 0.1-0.4% of silver, 0.05-0.15% of a rare earth element and the balance copper and inevitable impurity elements, wherein the rear element is one or two of cerium and neodymium. When the rare earth element is added in the form that the cerium and neodymium are mixed, the weight ratio of the cerium and neodymium is 1:1-1:2. The high-strength high-conductivity rare earth copper-magnesium alloy contact wire overcomes the technical defect that the requirements on electrical conductivity and the tensile strength of a copper-magnesium alloy cannot be met at the same time in the prior art and can meet the performance requirement of the copper alloy for the railway contact wire.

A sputtering target including an oxide that, includes an indium element (In), a tin element (Sn), a zinc element (Zn) and an aluminum element (Al), and including a homologous structure compound represented by InAlO₃ZnO)_m (m is 0.1 to 10), wherein the atomic ratio of the indium element, the tin element, the zinc element and the aluminum element satisfies specific requirements.

For producing a superconducting circuit, a film (12) consisting of a cuprate superconductor material is generated on a substrate (13), wherein the superconductor material is in the superconducting state at an operating temperature of the superconducting circuit to be produced, and then the film is irradiated by projecting an energetic ion radiation onto the film through a mask (11) positioned at a distance from the film and protecting selected areas of the film from being irradiated, the mask comprising a structure pattern transparent to the ion radiation but otherwise opaque to the ion radiation. Areas (14) not protected by the mask are irradiated with an ion dose being sufficiently low to avoid degradation of the crystal structure of the first film but being sufficient to inhibit superconductivity of the film with respect to the operating temperature; ion doses are preferably in the range of 0.8.10<15 >and 2.10<15 >ions/cm<2 >or below. The areas (15) of the film thus protected from irradiation form film portions which, at least at the operating temperature, act as a superconducting circuit.

Provided is a conductive paste composite. The conductive paste composite comprises first conductive powder having a first average grain size, and second conductive powder having a second average grain size.

The invention provides a resistance-reducing composition and application to soil thereof. The resistance-reducing composition comprises, by weight, 90-95 parts of bentonite, and 5-10 parts of grounding reinforcing materials with specific resistance of 0.1-0.15 ohm meter. According to the technical scheme, after the bentonite and the grounding reinforcing materials with the specific resistance of 0.1-0.15 ohm meter are mixed, resistance-reducing capacities of the bentonite are optimized by utilizing the low specific resistance of the grounding reinforcing materials, water-retaining properties of the bentonite are utilized at the same time so that the low specific resistance of the grounding reinforcing materials and superiorities of long-term effectiveness are brought into full play and geometric dimensions of a grounding electrode are further increased, and therefore the grounding resistance is lowered. As the grounding reinforcing materials and the bentonite are mixed for being used, the use amount of the grounding reinforcing materials of high cost is reduced.

The invention discloses a direct-current cable, which comprises a core material, wherein the core material is formed by twisting an aluminum-based alloy wire and an iron-based alloy wire; a filler coats the outside of the core material; a damp-proof layer is arranged outside the filler; a lightweight woven mesh coats the outside of the damp-proof layer; and an external protection layer is arranged outside the lightweight woven mesh. The damp-proof layer can improve the waterproof property and the damp-proof property of a product and can ensure the service lifetime of the material; and the protection layer can effectively play a protecting role; and the raw materials are simple and easy to obtain.

The present invention relates to a method for treatment of semiconducting nanoparticles wherein in a step A semiconducting nanoparticles comprising long chain insulting primary ligands are dispersed in a volatile dispersion solvent capable of dissolving insulating primary ligands and precipitated using a washing agent. TGA-MS analysis shows that the treatment according to the method of the present invention allows complete removal of the outer layer of synthesis ligands of the surface of prepared nanoparticles and improves removal of synthesis ligands on the surface of prepared nanoparticles. The present invention also relates to semiconducting nanoparticles, ink formulation and electronic devices comprising the semiconducting nanoparticles obtainable by the procedure of the invention.

The preparation method of light-colour antimony doped nano tin oxide powder body includes preparation of acidi mixed solution, ammonia water neutralization and precipitation reaction and the processes of washing precipitate, drying, sieving and calcining. Which is characterized by that (1) the acidic mixed solution is made up by drop-adding the nitric acid into tin powder and antimony trioxide, the concentration of the nitric acid is 1-12 mol/L, the concentration of tin in acidic mixed solution is 0.2-2 mol/L, and the mass ratio of antimony and tin is 1:100-15:100:and (2). drop-adding the acidic mixed solution and ammonia water into distilled water in the parallel-flow drop-adding mode, controlling pH value to obtain precipitate, and calcining at 400-900 deg.C for 2-4 hr.

The invention provides a tinned copper core fluorinated ethylene propylene insulated wire for aerospace and a manufacturing device. The wire comprises a copper core, a first insulating layer, a shielding layer, a second insulating layer, a protective layer and a balance layer; the outer surface of the copper core is tinned; the first insulating layer is extruded and formed on the copper core; the shielding layer covers the outer side surface of the first insulating layer; the second insulating layer is extruded and formed outside the shielding layer, and the first insulating layer and the second insulating layer are made of fluorinated ethylene propylene; and the protective layer is arranged on the outer side surface of the second insulating layer. The manufacturing device comprises a sectioning and positioning module, an electronic weight measuring module, an operation module, an execution module and a 3D printing module. The manufacturing device is used for the sectioning, positioning and sectioning quality measurement of the wire with after the protective layer, carrying out operation according to the mass of each section and the set standard mass of each section so as to obtain the material consumption of a positioning and sectioning balance layer, forming a control instruction, and controlling the material consumption for printing the positioning and sectioning balance layer through the 3D printing module.

Disclosed is a novel compound represented by formula (1) below. In the formula, A represents an optionally substituted aromatic hydrocarbon ring or aromatic heterocyclic group, B represents a group including a chain of one to four pieces of one or more groups selected from groups represented by specific formulae (B-1) to (B-13) (such as —C═C— or —N═N—, specifically see the description), R1 to R3 each represent an optionally substituted hydrocarbon or hydrocarbonoxy group, at least one of R1 to R3 represents an optionally substituted hydrocarbonoxy group, R4 and R5 each represent an optionally substituted hydrocarbon group, R4 and R5 may be linked together to form a ring, and R4 and R5 may be each independently linked with A to form a ring.

The invention discloses a water-cooled type high-current self-destruction protection cable, which is characterized in that the protection cable is a high-current cable filled with guide ion fluid; a shallow carving groove is carved on the upper part of a long nonmetallic and hollow container; and the fluid vaporizes during overcurrent, the carving groove is broken, and gas spouts to realize cutoff protection. According to the embodiment of the invention, the technical scheme of the protection cable can be improved, namely the shallow carving groove is a large-caliber pressure valve, and the pressure valve can operate again only by filling the ion current during restoration.