697results about "Conductive material" patented technology

The invention relates to the technical field of cable preparation, in particular to a superconducting semi-rigid cable made of high-purity aluminum and a preparation method thereof.The method comprises the steps that the high-purity aluminum is adopted as an inner conductor, and the inner conductor is preprocessed; coating the surface of the pretreated inner conductor with a PTFE mixture by using a pushing machine at normal temperature to obtain a normal-temperature pushing core wire; the qualified normal-temperature pushing core wire is wound on a cable reel and then placed in a vacuum high-temperature furnace to be subjected to vacuum sintering so as to obtain an inner conductor wrapped with an insulating layer; and the inner conductor wrapped with the insulating layer penetrates into the processed pure aluminum outer conductor tube, and the outer conductor is wrapped with PTFE to form an outer protective sleeve. According to the invention, the performance stability of the superconducting semi-rigid cable preparation can be improved.

The invention belongs to the technical field of conductive microsphere preparation, and particularly relates to a preparation method and application of conductive microspheres with convex particles on the surfaces. The preparation method comprises the following steps: acidizing resin microspheres by using imidazole disulfate ionic liquid, and combining the acidized resin microspheres with aminated activated carbon through chemical bonds to obtain microspheres with convex particles on the surfaces; and sequentially carrying out stannous chloride sensitization, palladium chloride activation and chemical nickel plating on the microspheres with the convex particles on the surfaces to obtain the conductive microspheres with the convex particles on the surfaces. The conductive microspheres with the raised particles on the surfaces can generate more and more effective local contact points in the crimping process, so that the connection resistance is obviously reduced, and the excellent conductive performance is realized.

The invention discloses superfine copper powder and a preparation method and application thereof, and belongs to the technical field of copper powder.The preparation method of the superfine copper powder comprises the following steps that a micro-channel reactor is provided, and the micro-channel reactor comprises a micro-mixer and a micro-reactor which are connected with each other; a copper salt solution, a reducing agent solution and a sodium hydroxide solution are injected into a micro-channel reactor to be evenly mixed, a mixed solution is obtained and then enters the micro-channel reactor to be subjected to a reaction, discharging is conducted, and the superfine copper powder is obtained. The injection flow rate ratio of the sodium hydroxide solution to the copper salt solution to the reducing agent solution is (0.5-2): (0.8-1.2): (0.8-1.2). According to the method, the uniformity and the preparation efficiency of the superfine copper powder are remarkably improved, meanwhile, the reaction time is greatly shortened, the yield and the purity of the superfine copper powder are remarkably improved, continuous and efficient preparation of the superfine copper powder is achieved, and the method has wide application prospects.

The invention relates to the technical field of cable production, and discloses a new energy charging heat-conducting flame-retardant cable which sequentially comprises a conductor layer, a heat-conducting insulating layer, a self-healing layer, a shielding layer, a mechanical enhancement layer and a flame-retardant outer sheath layer from inside to outside. The conductor layer is formed by a plurality of stranded tin-plated copper wires or nickel-plated copper wires; the heat-conducting insulating layer is composed of a crosslinked polyethylene matrix, a two-dimensional heat-conducting filler and phase-change temperature-adjusting microcapsules, the two-dimensional heat-conducting filler comprises a mixture of boron nitride nanosheets oriented by an electric field and graphene, and the mass fraction of the filler is 40%-55%; a core material of the phase-change temperature-adjusting microcapsule is a compound of paraffin and stearic acid. According to the scheme, trace rare earth and silver elements are introduced into the conductor to form a Cu-Ag-RE solid solution structure, so that the crystal integrity and the oxidation resistance of the conductor are remarkably improved; the structure still keeps excellent conductivity and bending resistance at high temperature, so that the cable can stably operate for a long time in a high-temperature and strong ultraviolet environment during charging, and the conductivity efficiency is improved.

The present invention provides a method for producing a water-soluble n-type conductive polymer, comprising the steps of: a) adding a monomer to a solvent system comprising water in the presence of a catalyst to prepare a reaction solution; b) polymerizing the monomer in the reaction solution to obtain an n-type conductive polymer solution; c) post-treating the n-type conductive polymer solution to obtain a water-soluble n-type conductive polymer; The present invention relates to a method comprising:

Exemplary secondary particles may include a porous polymer matrix comprising polyacrylonitrile (PAN) and polypyrrole (PPy), and a plurality of submicron-sized primary particles dispersed in the porous polymer matrix. The plurality of submicron-sized primary particles may comprise at least one of: carbon (C), silicon (Si), germanium (Ge), tin (Sn), or an alloy of a Group IVA element.

The invention discloses a high-conductivity and high-strength rare earth aluminum alloy conductor material and a preparation method thereof, and belongs to the technical field of aluminum alloy processing. Firstly, an alloy solution is prepared according to target components for smelting, Al-Fe, Al-Si and Al-Cu intermediate alloys are added after smelting, an Al-heavy rare earth element intermediate alloy and an Al-La-Ce-Pr-Nd intermediate alloy are sequentially added after smelting, a refining agent is added for rotary blowing refining after stirring, aluminum-titanium-boron grain refiner wires are added after standing, and the aluminum-titanium-boron grain refiner wires are added after cooling. And performing continuous casting and rolling on the refined alloy mixed solution to obtain an aluminum alloy rod, drawing the aluminum alloy rod into a wire, and finally performing multi-stage aging treatment on the aluminum alloy single wire to obtain the high-conductivity and high-strength rare earth aluminum alloy conductor material. According to the aluminum alloy conductor material, the electric conductivity is not lower than 55.5% IACS, the tensile strength is not lower than 315 MPa, synchronous optimization of the strength and the electric conductivity is cooperatively achieved, and the product stability is ensured.

The present application relates to a kind of aluminum alloy conductor, composite steel core aluminum stranded conductor and preparation method thereof, it is related to wire and cable technical field.The preparation method of aluminum alloy conductor includes: aluminum alloy rod is according to single pass less than 1.1 The drawing of 12 passes~15 passes is carried out, and the conductor is obtained;The conductor after drawing is heated to 160~170 ℃ and kept for 440~460 min, and then furnace cooling is obtained, to obtain aluminum alloy conductor.The composite steel core aluminum stranded conductor includes: the composite steel core of stranding structure, the aluminum stranded conductor layer of multiple stranding structures is included outside composite steel core;Composite steel core includes galvanized steel wire and the above-mentioned aluminum alloy conductor.Aluminum alloy conductor adopts more pass drawing process and specific heat treatment, has more excellent conductivity, yield strength, elongation and tensile strength.Prepared composite steel core aluminum stranded conductor with it can significantly reduce sag.

The invention relates to a flexible electrode for electronic skin and a preparation method thereof, and belongs to the field of electronic skin. The flexible electrode for the electronic skin disclosed by the invention is prepared from polybenzodifuran diketone, nano metal powder and maleimide modified polyurethane. The flexible electrode disclosed by the invention still keeps excellent conductivity after being repeatedly stretched; meanwhile, the self-repairing performance is achieved, the initial performance of the material can be recovered when the material is damaged, the service cycle of the electronic skin can be prolonged, and the maintenance cost is reduced.

A rollable display apparatus including a display panel having a threshold curvature radius; a roller, having a curvature radius equal to or larger than the threshold curvature radius, attached to one side of the display panel and configured to allow the display panel to be rolled-up; and a curved surface member, spaced apart from the roller, having a curvature radius equal to or larger than the threshold curvature radius in an area in contact with the display panel, configured to bend the display panel in a direction opposite to a direction in which the display panel is rolled by the roller.

The present application relates to a kind of high efficient preparation high-strength high-conductivity copper-based composite wire method, through high-purity citric acid or citrate one-step generation zero-dimensional GQDs load in two-dimensional GN surface multi-dimensional reinforcing phase, using stirring ball mill preparation kilogram-level GQDs@GN / Cu composite powder, then through pre-pressing and microwave sintering equipment preparation composite bar, finally using cold extrusion extrusion into wire material of cylindrical bar, the yield strength and tensile strength of the GQDs@GN / Cu composite wire material prepared by the method are 274MPa and 314MPa respectively, and the conductivity is as high as 95.3%IACS;The present application has short preparation time, simple process, low production cost, high yield, good reinforcing effect, and is suitable for mass production.

A copper paste containing copper powder and an organic solvent, the aforementioned organic solvent being an alcohol-based solvent, the alcohol-based solvent containing: a first alcohol that is one or more selected from the group consisting of monohydric and dihydric alcohols having a viscosity of 3 mPa·s or more and 70 mPa·s or less at 20°C; and a second alcohol that is one or more selected from the group consisting of dihydric and trihydric alcohols having a viscosity of 300 mPa·s or more and 1000 mPa·s or less at 20°C.

To provide an anisotropic conductive composition in which void generation is suppressed, an anisotropic conductive sheet containing the anisotropic conductive composition, a connecting structure connected using the anisotropic conductive sheet, and a method for manufacturing the connecting structure. [Solution] The anisotropic conductive composition comprises solder particles having a flake shape and a resin component, wherein the average aspect ratio of the solder particles is 2 or more.

Provided are a conductive ink capable of forming metal wiring having low volume resistivity, a method for producing a copper-nickel sintered film, and a copper-nickel sintered film.　This conductive ink comprises copper particles, a copper complex, and a nickel complex, the copper complex being a complex represented by Cu(HCOO)2(L)m and the nickel complex being a complex represented by Ni(HCOO)2(L)n, where L is at least one selected from the group consisting of 2-amino-2-methyl-1-propanol, 1-amino-2-propanol, 2-amino-1-butanol, 2-(methylamino) ethanol, and 2-aminoethanol, m is a natural number of 2-6, and n is a natural number of 2-6, the ratio of copper contained in the copper complex to the total of the copper particles and the copper contained in the copper complex being 0.5-15.0 mass%, and the ratio of nickel contained in the nickel complex to the total of the copper particles, the copper contained in the copper complex, and the nickel contained in the nickel complex being 0.5-7.0 mass%.

To provide a polyolefin film having high conductivity and maintaining good conductivity even after stretching, and to provide a resin current collector for a bipolar type battery having uniform conductivity in the thickness direction in a film surface.SOLUTION: The polyolefin film contains conductive particles and satisfies the following (1) and (2): (1) A carbon material and / or metal particles are contained in a total amount of 1.0 mass% or more and 40 mass% or less. (2) The conductive particles contain at least particles having an aspect ratio of 1 or more and less than 5 and particles having an aspect ratio of 5 or more.SELECTED DRAWING: None

A method for producing a surface finish on an electrically conductive substrate includes transferring an ink having a plurality of electrically conductive particles onto an area of a predetermined form and / or size on a surface of the electrically conductive substrate by gravure and / or flexo printing. The ink is heated to a temperature that is higher than a melting point of the electrically conductive particles to create a melt. The melt solidifies into the surface finish on the electrically conductive substrate.

According to the present invention, it is possible to provide a polycarbonate resin that contains a constituent unit (A) derived from a monomer represented by general formula (1), a constituent unit (B) derived from a monomer represented by general formula (2) and a constituent unit (C) derived from a monomer represented by general formula (3). Relative to the total amount of constituent units (A), (B) and (C) that constitute the polycarbonate resin, the proportion of constituent unit (A) is 20-50 mol %, the proportion of constituent unit (B) is 5-20 mol %, and the proportion of constituent unit (C) is 30-75 mol %.

The invention provides a high-flexibility aluminum alloy cable, which belongs to the technical field of cables and sequentially comprises a modified aluminum alloy conductor, a composite insulating layer, a flexible shielding layer and a multifunctional modified sheath layer from inside to outside. The multifunctional modified sheath layer comprises 46.8%-53.5% of hydrogenated styrene-butadiene block copolymer modified polyamide, 15.6%-20.8% of an ethylene-octylene copolymer, 5.8%-10.4% of an environment adaptability repairing agent, 3.2%-5.8% of organic modified montmorillonite, 1.6%-3.6% of an insulation regulation and control auxiliary agent, 2.3%-4.2% of a compatilizer and 0.7%-1.4% of a cross-linking agent. The problems that flexibility, environmental adaptability, self-repairing capacity and high-voltage insulation performance of an existing aluminum alloy cable are difficult to cooperate, and performance matching of a conductor and a sheath is insufficient are effectively solved, and the comprehensive use performance, scene adaptation range, long-acting reliability and high-voltage use safety of the cable are remarkably improved.

To provide a conductive resin composition that has excellent thermal conductivity and storage elastic modulus, as well as excellent adhesion to a substrate or the like.SOLUTION: The conductive resin composition of the present invention comprises (A) a conductive particle, (B) a polymer containing polyrotaxane, and (C) a monomer containing a compound having a double bond at the terminal, and in which the ratio of the monomer (C) to the total 100 mass% of the polymer (B) and the monomer (C) is 50 mass% to 95 mass%.SELECTED DRAWING: None

The invention discloses a conductive particle reinforced elastomer self-sensing driver which comprises a liquid crystal elastomer matrix and conductive particles, the conductive particles form a continuous or semi-continuous conductive network in the matrix, and the invention relates to the technical field of soft robot driving and intelligent materials. According to the conductive particle reinforced elastomer self-sensing driver and the preparation method thereof, the conductive particles serve as a heating element and a sensing element at the same time, an external temperature sensor or displacement sensor is not needed, the system structure is greatly simplified, resistance feedback directly corresponds to a deformation state, heat conduction delay is bypassed, and intelligent compensation is conducted in combination with a neural network. The conductive particles are uniformly distributed, the local hot spot problem of the resistance wire is avoided, the conductive particles and the LCE substrate are physically / chemically combined, no mechanical interface exists, compared with an embedded metal wire, the conductive particles have relatively small influence on the rigidity of the LCE, excellent flexibility is kept, and the LCE is suitable for the face of an expression robot and other applications needing to be attached to the skin.

The purpose of the present invention is to provide a spherical silver powder that can impart an excellent low-temperature sinterability to conductive pastes. A first embodiment of the present invention is a spherical silver powder that contains silver particles that have closed voids in the particle interior, wherein: when at least 10 fields of view of a silver particle cross section are observed at 100,000X, the number per the cross-sectional area of voids A having a Heywood diameter of at least 4 nm is at least 70 / μm2 and not more than 500 / μm2, and the ratio, to the number of voids A per the cross-sectional area, of the number per the cross-sectional area of voids a having a Heywood diameter of at least 4 nm and less than 30 nm is at least 90%.

Provided are: composite copper particles suitable for use as a raw material for a paste that can be sintered even in an inert atmosphere and that can be used in a non-pressure bonding method; and a bonding member containing the paste; and a method for producing the composite copper particles. The present invention is a composite copper particle containing a copper particle, a monocarboxylic acid or a salt thereof, and a compound represented by general formula 1: R1 (OCH2CH2) nOR2 (in the formula, R1 represents an alkyl group, an aryl group, or a hydrogen atom, R2 represents an alkyl group, an aryl group, a hydrogen atom, or an acetyl group, and n is an integer of 1-4 (inclusive), but not the case where both R1 and R2 are a hydrogen atom), and a compound represented by general formula 1: R1 (OCH2CH2) nOR2 (in the formula, R1 represents an alkyl group, an aryl group, or a hydrogen atom, R2 represents an alkyl group, an aryl group, a hydrogen atom, or an acetyl group). The average particle diameter of the composite copper particles measured by a scanning electron microscope is 170 nm or more and 600 nm or less.

Disclosed is an optical laminate including: a first laminate comprising a first polarizing plate and a first transparent conductive layer; a second laminate opposite to the first laminate and comprising a second polarizing plate and a second transparent conductive layer; and a liquid crystal layer disposed between the first laminate and the second laminate, wherein the first laminate and the second laminate each has a Martens hardness (HM) of 100 N / mm2 to 430 N / mm2 and an elastic recovery rate (nIT) of 40% to 87%, as measured when a pressing load of 1 mN is applied thereto for 15 seconds using a nanoindenter. Also disclosed is a smart window including the optical laminate. A polarizing plate-transparent conductive layer laminate positioned above and below the liquid crystal layer is not deformed due to its excellent hardness and may be recovered after being compressed, due to its excellent elastic recovery rate.

A two-dimensional particle that includes: one or plural layers that comprise a layer body represented by: MmXn, wherein Mis at least one metal of Group 3, 4, 5, 6, or 7; X is a carbon atom, a nitrogen atom, or a combination thereof; n is 1 to 4; and m is more than n but not more than 5, a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, a fluorine atom, a chlorine atom, an iodine atom, an oxygen atom, a chlorine atom, a phosphorus atom, and a hydrogen atom; and a hydrocarbon compound exists on the one or plural layers.

To provide a copper alloy having high conductivity and excellent heat resistance.SOLUTION: A copper alloy has the content of Mg of more than 10 mass ppm and 100 mass ppm or less, the balance Cu with inevitable impurities, the content of S of 10 mass ppm or less, the content of P of 10 mass ppm or less, the content of Se of 5 mass ppm or less, the content of Te of 5 mass ppm or less, the content of Sb of 5 mass ppm or less, the content of Bi of 5 mass ppm or less, the content of As of 5 mass ppm or less, the total content of S, P, Se, Te, Sb, Bi and As of 30 mass ppm or less, a mass ratio [Mg] / [S+P+Se+Te+Sb+Bi+As] of 0.6 or more and 50 or less, conductivity of 97% IACS or more, an average value of orientation densities at φ2=0°, φ1=0° to 20°, Φ=35°to 55° of 1.3 or more and less than 20.0, and an area ratio of crystals having crystal orientation of 10° or less with respect to S orientation {123}<634> of 10% or less.SELECTED DRAWING: None

The present invention provides a method for producing a water-processable n-type conducting polymer, comprising the steps of: a) adding a monomer to a solvent system comprising water in the presence of a catalyst and a base to prepare a reaction solution; b) polymerizing the monomer in the reaction solution to obtain an n-type conductive polymer; c) post-treating the n-type conductive polymer dispersion to obtain a water-processable n-type conductive polymer; The present invention relates to a method comprising:

The present disclosure provides an electric energy transmission system for a vehicle, a charging device and an electric vehicle. The electric energy transmission system for a vehicle includes a charging connection part (1) and an electric energy transmission guide rail (2), one end of which is connected to one end of the charging connection part (1). The electric energy transmission system for a vehicle have advantages of excellent conductive property, light weight, low cost, avoidance of electromagnetic interference, simple structure and convenient assembly in the process of high current charging.

A cable includes a core including at least one covered electric wire, and an outer sheath disposed outside the core. The at least one covered electric wire includes a conductor made of a copper alloy and an insulator disposed outside the conductor. The conductor is a twisted wire formed by twisting a plurality of conductor element wires together, and a twist pitch of the conductor is less than or equal to 25 times an outer diameter of the conductor. The insulator contains a polyvinyl chloride resin and has a tensile modulus of 150 MPa or more.

Provided are conductive particles that can exhibit low dielectric properties. The conductive particle according to the present invention comprises a base particle and a conductive layer disposed on the surface of the base particle, wherein the base particle is a polymer of a polymerizable component, the polymerizable component contains a polymerizable compound having one or more maleimide groups, the content of the polymerizable compound having one or more maleimide groups is 10% by weight or more and 80% by weight or less relative to 100% by weight of the polymerizable component, the dielectric constant of the base particle is 2.80 F / m or less, and the dielectric loss tangent of the base particle is 0.01 or less.

Concentrated dispersions of silver nanowires are used to produce qualitatively distinct silver structures with various properties. The concentrated dispersions may contain a high weight percent of silver nanowires and can be formulated to be a fluid liquid or a non-fluid paste. The concentrated dispersions may be stable for up to a week without visible sedimentation, may have non-Newtonian rheology, and can be diluted to a desired weight percent of silver nanowires without adversely affecting the uniformity of the dispersion. The concentrated dispersions may be formulated with or without polymer or prepolymer components. The concentrated dispersions may be formulated with silver salts to adjust the dispersion of silver nanowires and to improve the conductivity of the hardened silver structures formed from the dispersions. Methods for forming concentrated dispersions are described as methods for forming silver structures from dispersions.