Patents
Literature
29results about "Inorganic insulators" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Temperature-resistant and wear-resistant three-layer insulated wire and preparation method thereof
ActiveCN120674164BPlastic/resin/waxes insulatorsInsulated cablesLow-density polyethyleneInsulation layer
The application discloses a kind of temperature-resistant wear-resistant three-layer insulated wire and preparation method thereof, it is related to cable technical field.The preparation method of the application is: the surface of conductor material is extruded and packed inner layer material to form inner insulation layer, then the surface of inner insulation layer is extruded and packed modified silicone rubber to form middle layer, then the surface of middle layer is extruded and packed outer layer material to form outer insulation layer, and high-temperature-resistant flame-retardant cable material is obtained after curing.In which, inner layer material is made of low-density polyethylene, antioxidant 1010, insulation particle, voltage stabilizer and the like;Modified silicone rubber is made of silicone rubber, boron nitride compound, modified magnesium oxide and the like;Outer layer material is made of inner layer material, boron nitride compound.The introduction of insulation particle, voltage stabilizer, boron nitride compound and the like components effectively improves the high-voltage resistance, aging resistance, wear resistance and temperature resistance of crosslinked polyethylene insulated power cable wire.Therefore, the application has wide application prospect.
Owner:SHENZHEN DARUN SCI & TECH CO LTD
Dielectric material and method for forming same
A dielectric material and a method of forming the same. A dielectric material is provided comprising a film comprising a layer of a two-dimensional (2D) material wherein the film has a dielectric constant ([kappa]) < = 3.0. A method of forming the dielectric material is also provided.
Owner:NATIONAL UNIVERSITY OF SINGAPORE
A dedicated cable for high-torque robots
ActiveCN120833938BClimate change adaptationInorganic insulatorsLinear low-density polyethyleneElectrical conductor
The application discloses a special cable suitable for high-torque robots. The cable comprises a conductor, an insulating layer, a shielding layer and a sheath layer, the insulating layer is located outside the conductor, the shielding layer is located outside the insulating layer, and the sheath layer is located outside the shielding layer. The raw material of the sheath layer comprises the following components: 40-50 parts of linear low-density polyethylene, 30-40 parts of methyl vinyl silicone rubber, 1-2 parts of a crosslinking agent, 15-25 parts of modified silicon dioxide, 0.5-1 part of an antioxidant and 1-2 parts of a lubricant. The anti-torsion, wear resistance and flame resistance of the cable are improved by optimizing the material formula of the sheath layer, so that the cable can adapt to the frequent movement and complex working conditions of high-torque robots.
Owner:SICHUAN XINRONG ELECTRIC CABLE CO LTD
High-thermal-conductivity and high-insulation material containing graphene boron nitride heterojunction and preparation method of high-thermal-conductivity and high-insulation material
The invention discloses a high-thermal-conductivity and high-insulation material containing a graphene boron nitride heterojunction and a preparation method, and relates to the field of thermal-conductivity and insulation composite materials. According to the material, graphene layers and hexagonal boron nitride layers are alternately stacked to form a vertical heterojunction, the total layer number is 3-10, the lattice stacking angle is 0 degree or 60 degrees, the in-plane heat conductivity is larger than or equal to 1500 W / mK, the vertical heat conductivity is larger than or equal to 50 W / mK, and the resistivity is gt; and 10 omega.cm. The preparation method comprises the steps of CVD alternate growth, pollution-free transfer, ALD-assisted deposition, high-temperature annealing, pressure-assisted bonding and gradient variable-temperature stress release. Through structural design and process optimization, high thermal conductivity and high insulation are coordinated, the interface thermal resistance is reduced by 40% or above, and the performance attenuation rate lt of the material in circulation at the temperature of-50-300 DEG C is reduced; and the insulating material is suitable for thermal management and insulation scenes of high-power electronic devices.
Owner:GUANGZHOU ADVANCED ELECTRICAL TECHNOLOGY CO LTD
A 10 kV overhead insulated cable
ActiveCN121011408BPower cables with screens/conductive layersPower cables for overhead applicationElectrical conductorTin plating
The application discloses a 10kV overhead insulated cable, a tin layer is plated on the surface of a copper single wire to obtain a tin-plated copper single wire, the tin-plated copper single wire is twisted to obtain a conductor; an insulating layer mixture is extruded on the conductor and a steel wire rope respectively to form an insulating layer, a core and a tensile rope are obtained; one tensile rope is taken as an axis, and a plurality of cores are twisted with the tensile rope to obtain a cable core; a tin-plated copper single wire is woven outside the cable core to form a shielding layer; a sheath mixture is extruded on the outside of the shielding layer to form a sheath, and the overhead insulated cable is obtained. The overhead insulated cable has excellent mechanical properties and high and low temperature resistance, and can meet the 10kV power transmission requirement.
Owner:HEBEI GUANYU CABLE CO LTD
An organic-inorganic composite filling paste for electric power and a preparation method and application thereof
The application discloses an organic-inorganic composite filling paste for electric power and a preparation method and application thereof. The organic-inorganic composite filling paste for electric power comprises an inorganic matrix, an organic composite additive and water, wherein the inorganic matrix is dolomite, the organic composite additive is composed of an interface modifier and a network building agent, the interface modifier is at least one of sodium lignosulfonate and calcium lignosulfonate, and the network building agent is hydroxypropyl methyl cellulose; and the mass percentage of the water in the organic-inorganic composite filling paste for electric power is 15%-25%. The organic-inorganic composite filling paste for electric power has the advantages of low thermal resistance, non-combustibility, good dispersibility, high long-term storage stability and good construction adaptability.
Owner:WUHAN UNIV OF TECH
High-temperature-resistant, acid-resistant and oil-corrosion-resistant cable and preparation method thereof
PendingCN121922424APlastic/resin/waxes insulatorsDetails of conductive coresChemical industryElectrical conductor
The invention discloses a high-temperature-resistant, acid-resistant and oil-corrosion-resistant cable and a preparation method thereof, and belongs to the technical field of wires and cables. The cable comprises a conductor, an insulating layer, a belting layer and an outer sheath from inside to outside. The insulating layer is prepared by blending, extruding and sintering FEP (fluorinated ethylene propylene), PEEK (polyetheretherketone) and nano SiO2 according to a specific weight ratio; and the outer sheath is made of a composite material containing HNBR, modified polytetrafluoroethylene micro powder and a composite vulcanization system. Through collaborative design of materials and structures, the cable has excellent high temperature resistance (200 DEG C), acid resistance and oil corrosion resistance, and is suitable for extreme environments such as petrochemical engineering.
Owner:CHUNHUA KUNLUN YOUJIA CABLE CO LTD
A dielectric material and method of forming the same
A dielectric material and method of forming the same There is provided a dielectric material comprising a film comprising a layer of two- dimensional (2D) material, wherein the film has dielectric constant (κ) ≤ 3.0. There is also provided a method of forming the dielectric material.
Owner:NATIONAL UNIVERSITY OF SINGAPORE
Weather-proof large-section aerial insulated cable and preparation method and application thereof
PendingCN121483746AClimate change adaptationPower cables with screens/conductive layersAerial cableElectrical conductor
The invention relates to a weather-proof large-section aerial insulated cable and a preparation method and application thereof, and belongs to the technical field of cables. The weather-proof large-section overhead insulated cable is provided with a steel core layer, an aluminum wire layer, a conductor shielding layer and an outer sheath layer from inside to outside in sequence. Wherein the steel core layer is of at least one layer of steel wire structure, the aluminum wire layer is of at least one layer of aluminum wire structure, and the outer sheath layer is made of crosslinked polyethylene materials. According to the invention, the multi-layer conductor layer structure is adopted, the electrical property is excellent, the cable is suitable for a large-section aerial cable, and the cross-linked polyethylene material of the prepared outer sheath layer is high in tensile strength, excellent in elongation at break performance, good in mechanical property, capable of effectively resisting aging, high in dielectric strength, capable of effectively insulating and high in reliability. Therefore, the prepared weather-resistant large-section overhead insulated cable has excellent performance.
Owner:KUNMING DUOBAO CABLE CO LTD
An intelligent insulating material with heat conduction and nonlinear volt-ampere characteristic, a preparation method and applications thereof
The application relates to a heat-conducting intelligent insulation material with nonlinear volt-ampere characteristics, a preparation method and application thereof, and belongs to the technical field of insulation materials. The intelligent insulation material comprises a polymer matrix and SiC nanofiber felt in the polymer matrix, the volume fraction of the SiC nanofiber felt is 0.5%-2% of the polymer matrix, the SiC nanofiber felt is assembled by roughly same-direction SiC nanofibers, and the SiC nanofibers are arranged in parallel or vertically in the polymer matrix. The scheme provided by the application can optimize the heat conduction path of the intelligent insulation material, and the high heat conduction and nonlinear volt-ampere characteristics of the material are considered, the problem of low heat dissipation efficiency of the packaging material is solved, the composite material is endowed with the electric field self-adaptive regulation and control ability of low-field insulation and high-field conduction through the nonlinear volt-ampere characteristics, and the aging breakdown problem of the composite material when facing the electric field distortion phenomenon is relieved.
Owner:SHENZHEN UNIV
Cable with good heat dissipation effect
Owner:HANGZHOU CHUANGMEI IND
Glass paste and use thereof
To provide a glass paste capable of achieving both baking property and printing property even when baked in an inert gas atmosphere.SOLUTION: In the glass paste for forming an insulating protective film by firing in an inert gas atmosphere, a glass component and an organic vehicle are combined, 50 mass% or more of the glass component is composed of glass beads, and a (meth) acrylic resin is contained in the organic vehicle. The insulating protective film may be a film for protecting a base metal-based conductor film and / or a base metal-based resistive film. The central particle diameter D50 of the glass beads may be 1 to 30 μm. The glass beads may include at least one selected from the group consisting of borosilicate glass, aluminosilicate glass, and aluminoborosilicate glass. A ratio of an alkali metal component in the glass beads may be 10% by mass or less. The glass paste may be applied to a base metal-based conductor film and / or a base metal-based resistance film and fired in an inert gas atmosphere to produce an insulating protective film.SELECTED DRAWING: None
Owner:MITSUBOSHI BELTING LTD
Titanium oxide particles and method for producing the same
To provide titanium oxide particles and a method for producing the same, the titanium oxide particles having a high anatase content, reduced coarse particles, and superior uniformity and dispersibility.SOLUTION: A method for producing titanium oxide particles is provided, comprising: a reaction step in which a raw material gas (G1), containing titanium tetrachloride and an inert gas, and an oxidizing gas (G2), containing at least one of oxygen gas and water vapor as well as an inert gas, are introduced into a reaction tube to generate a reaction gas; and a cooling step in which the reaction gas is cooled by introducing a cooling gas, thereby yielding titanium oxide particles, in which the ratio FG1T / FG1, which is the flow rate (FG1T) of titanium tetrachloride in G1 to the flow rate (FG1) of G1 in the reaction step, is 0.4 or more and less than 1.0, and the ratio of a TiO2 mass (kg) after introduction of the cooling gas in the cooling step to a total gas volume (m3), (TiO2 mass) / (total gas volume), is more than 0 and 0.21 kg / m3 or less.SELECTED DRAWING: Figure 1
Owner:RESONAC CORP
Thermally conductive wire insulation
PCT designated stageWO2026044220A1Plastic/resin/waxes insulatorsInsulated cablesPolymer sciencePolymer chemistry
A compound for insulation may include a polymer and a filler. A method for insulating a wire using said compound comprises melting a polymer to form a molten polymer, mixing the molten polymer with a filler to form an insulation compound, applying the insulation compound along a wire, and cooling the insulation compound at a controlled rate to form a uniform crystal.
Owner:SCHLUMBERGER TECH CORP +3
A high-frequency harmonic resistant electro-thermal combined action DC voltage divider composite insulating material and a preparation method thereof
PendingCN122245910APlastic/resin/waxes insulatorsInorganic insulatorsElectrical field strengthVacuum pressure
This invention relates to a composite insulating material for DC voltage dividers resistant to the combined electro-thermal effects of high-frequency harmonics and its preparation method. The insulating material comprises an adaptive core layer, a gradient transition layer, and a high-purity insulating layer. The adaptive core layer is located at the innermost layer, the gradient transition layer consists of two layers symmetrically positioned at both ends of the adaptive core layer, and the high-purity insulating layer consists of two layers positioned outside the two gradient transition layers. Through innovative material and structural design, a highly efficient synergy between high electric field strength tolerance and excellent heat dissipation is achieved, significantly suppressing the electro-thermal synergistic breakdown phenomenon under high frequencies. The preparation method includes pretreatment of the adaptive core layer, gradient transition layer, and high-purity insulating layer; assembly of the adaptive core layer, gradient transition layer, and high-purity insulating layer to obtain a composite preform structure; vacuum pressure impregnation and interface fusion strengthening of the composite preform structure to obtain a primary preform; and curing and stabilization treatment of the primary preform to obtain the DC voltage divider composite insulating material.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST
Multilayer structure and method for producing multilayer structure
A laminated structure includes a substrate having a first surface and a second surface provided continuously with the first surface, a first insulating film on the first surface and the second surface, and a second insulating film on the first insulating film and on a corner portion formed at a boundary between the first surface and the second surface, wherein a difference between a thermal expansion coefficient of the substrate and a thermal expansion coefficient of the second insulating film is smaller than the difference between the thermal expansion coefficient of the substrate and the thermal expansion coefficient of the first insulating film. A manufacturing method for a laminated structure includes using a substrate having a first surface and a second surface provided continuously with the first surface, forming a first insulating film on the first surface and the second surface, and forming a second insulating film by melting and spraying an organic material on the first insulating film and in a gap of the first insulating film.
Owner:NHK SPRING CO LTD
Stretch-resistant insulated cable and preparation method thereof
PendingCN122025236APlastic/resin/waxes insulatorsClimate change adaptationPolyolefinElectrical conductor
The invention discloses a tensile insulated cable and a preparation method thereof, and relates to the technical field of cables. The tensile insulated cable comprises a conductor, an insulating layer, a shielding layer and a sheath layer, each layer adopts raw materials in a specific ratio, the conductor is a high-purity oxygen-free copper wire, the insulating layer takes polyolefin as a matrix, the shielding layer contains an ethylene-vinyl acetate copolymer and conductive carbon black, and the sheath layer is added with additives such as superfine talcum powder. The modified basalt fiber and the modified nano silicon dioxide are key to be contained, and compatibility and dispersity are optimized through multi-step modification. The preparation is completed through layered mixing granulation, precise extrusion coating and cooling trimming, process parameters are controllable, the problems that an existing cable is poor in component compatibility, filler is prone to agglomeration and the like are solved, and the tensile property, the insulation property and the anti-aging property are considered.
Owner:HEBEI XINGHANG CABLE CO LTD
Insulation film and method for forming same, and composite member
To provide an insulation film which has an excellent insulation property and heat resistance, which does not require a winding operation using a ceramic tape or the like, which does not have a problem of winding unevenness, a gap, or peeling off, and which can even be easily cope with a conductive base material having a complicated shape. In an insulation film (1), at least an inorganic material (20) is dispersed in a first matrix (10) containing silicone. A material of the first matrix (10) or a material of a second matrix having a component different from that of the first matrix (10) may be used for impregnation. The insulation film (1) is formed by dip coating, for example.
Owner:IBIDEN CO LTD
Copper-coated steel wire, stranded wire, insulated electric wire, and cable
ActiveUS12614646B2Single bars/rods/wires/strips conductorsInorganic insulatorsStructural engineeringElectric cables
A copper-coated steel wire includes a core wire made of a steel, and a coating layer made of copper or a copper alloy and covering an outer peripheral surface of the core wire. In a cross section perpendicular to a longitudinal direction of the core wire, the core wire includes a plurality of oxide regions composed of an oxide of an element contained in the steel constituting the core wire, the oxide regions including the outer peripheral surface of the core wire and being disposed apart from each other in a circumferential direction of the core wire.
Owner:SUMITOMO ELECTRIC INDUSTRIES LTD
Gold nano enameled wire and preparation method thereof
PendingCN121355007APlastic/resin/waxes insulatorsDetails of conductive coresMicrofluidicsComposite material
Owner:JIANGXI BLUE MICROELECTRONICS TECH CO LTD
Glass paste and use thereof
PendingJP2026015255AInorganic insulatorsNon-metallic protective coating applicationAcrylic resinSilicate glass
To provide a glass paste capable of achieving both baking property and printing property even when baked in an inert gas atmosphere.SOLUTION: In a glass paste for forming an insulating protective film by firing in an inert gas atmosphere, a glass component and an organic vehicle are combined, 50 mass% or more of the glass component is composed of glass beads having a softening point of 600 to 950 °C, and a (meth) acrylic resin is contained in the organic vehicle. The insulating protective film may be a film for protecting a base metal-based conductor film and / or a base metal-based resistive film. The central particle diameter D50 of the glass beads may be 1 to 30 μm. The glass beads may include at least one selected from the group consisting of borosilicate glass, aluminosilicate glass, and aluminoborosilicate glass. A ratio of an alkali metal component in the glass beads may be 10% by mass or less. The glass paste may be applied to a base metal-based conductor film and / or a base metal-based resistance film and fired in an inert gas atmosphere to produce an insulating protective film.SELECTED DRAWING: None
Owner:MITSUBOSHI BELTING LTD
Manufacturing method of insulating shell of insulating piercing wire clamp
PendingCN121839325AInorganic insulatorsContact members penetrating/cutting insulation/cable strandsElectric power equipmentPower equipment
The invention relates to the field of manufacturing of insulating materials of power equipment, in particular to a manufacturing method of an insulating shell of an insulating piercing wire clamp, and aims to solve the problems that in the prior art, directional arrangement control of filler is difficult to realize, so that the material has obvious anisotropic characteristics, and the performance difference in different directions is obvious. The comprehensive performance of the insulating shell is effectively improved. The synergistic effect of the base material and the nano filler ensures the mechanical strength and impact resistance of the shell, and the design of the heterogeneous filler network optimizes the heat conduction and insulation properties at the same time. The anisotropy of the material is remarkably reduced by the external field orientation and cross lamination process, so that the performance of the material is kept stable in a complex stress environment. According to the multi-layer surface protection structure, through the synergistic effect of the hydrophobic barrier and the conductive path, the arc resistance and the dirt adhesion resistance are greatly improved. And the flowability in the forming process is optimized by introducing the processing aid, and the forming precision and consistency of the shell with the complex structure are ensured.
Owner:YONGJIU ELECTRIC POWER FITTING
Hexagonal boron nitride platelets, methods of making and using the same
The application provides a hexagonal boron nitride flake, a preparation method and application thereof. The hexagonal boron nitride flake has a D50 of 1-4 microns, a specific surface area of 12-20 m 2 / g, and a thermal conductivity of 0.9-1.1 W·m ‑1 ·K ‑1 The hexagonal boron nitride flake has the characteristics of small D50, large specific surface area and high thermal conductivity, so that the heat-conducting insulating material has excellent heat-conducting performance.
Owner:TIANYUAN AVIATION MATERIALS (YINGKOU) TECH CO LTD +1
Dielectric material and method for forming the same
A dielectric material and a method for forming the same are provided. The dielectric material includes a film comprising a layer of two-dimensional (2D) material, wherein the film has a dielectric constant (κ) of 3.0 or less. A method for forming the dielectric material is also provided.
Owner:NATIONAL UNIVERSITY OF SINGAPORE
A flexible high-strength insulated cable material, its preparation method, and an electric cable.
ActiveCN122080541Aevenly dispersedreduce polarityRubber insulatorsPlastic/resin/waxes insulatorsMethacrylatePolymer science
This application relates to the field of cable technology, disclosing a flexible high-strength insulated cable material, its preparation method, and a power cable. The material formulation includes ethylene propylene diene monomer (EPDM) rubber, ethylene-octene copolymer, magnesium hydroxide, solid maleic anhydride, zinc methacrylate, α-methylstyrene dimer, dicumyl peroxide, and a compound antioxidant. During processing, the maleic anhydride undergoes ring-opening upon heating, consuming free water on the surface of magnesium hydroxide in situ, thus improving powder dispersion. The α-methylstyrene dimer acts as a chain transfer agent, inhibiting the long-chain homopolymerization of zinc methacrylate and preventing the formation of hard, brittle crosslinking points within the matrix. The polar graft ends and the hydroxyl groups on the magnesium hydroxide surface construct a reversible coordination network containing metal ion bonds. This invention solves the problems of difficult dehydration and brittle crosslinking in highly filled flame-retardant materials, enabling the material to dissipate strain energy through ion node slippage when stretched or bent, thus possessing high flame retardancy, high tensile strength, and excellent flexibility.
Owner:江苏宇久电缆科技有限公司
Glass paste and use thereof
To provide a glass paste capable of achieving both baking property and printing property even when baked in an inert gas atmosphere.SOLUTION: In the glass paste for forming an insulating protective film by baking in an inert gas atmosphere, a glass component and an organic vehicle are combined, and only glass beads are used as the glass component. The insulating protective film may be a film for protecting a base metal-based conductor film and / or a base metal-based resistive film. The central particle diameter D50 of the glass beads may be 1 to 30 μm. The glass beads may include at least one selected from the group consisting of borosilicate glass, aluminosilicate glass, and aluminoborosilicate glass. A ratio of an alkali metal component in the glass beads may be 10% by mass or less. The glass paste may be applied to a base metal-based conductor film and / or a base metal-based resistance film and fired in an inert gas atmosphere to produce an insulating protective film.SELECTED DRAWING: None
Owner:MITSUBOSHI BELTING LTD
Graphene composite membrane as well as preparation method and application thereof
The invention discloses a graphene composite film and a preparation method and application thereof. The graphene composite film comprises a composite layer composed of graphene and hexagonal boron nitride and a graphene layer arranged on at least one surface of the composite layer, and the defect degree of graphene in the graphene layer is higher than that of graphene in the composite layer. The graphene composite film contains the hexagonal boron nitride powder, is high in heat conductivity coefficient and is an insulating material, and the resistivity can be improved while the heat conductivity is improved; the graphene layer with high defect degree can further improve the resistivity, so that the composite film has heating and heat dissipation functions, and can be used as a heating and heat dissipation integrated element to be applied to the field of thermal management of chemical power supplies such as lithium ion batteries.
Owner:BEIJING GRAPHENE INST +1
High-effect composite structure power cable and preparation method thereof
The invention relates to the technical field of cable materials, and particularly discloses a high-efficiency composite structure power cable and a preparation method thereof. A high-efficiency composite structure power cable comprises a conductor, an insulating layer, an asymmetric shielding layer and a jacket layer, the insulating layer comprises an inner layer, a middle layer and an outer layer, the inner layer is made of a nano-porous polyolefin matrix, the middle layer is made of boron nitride and elastic silica gel, and the outer layer is made of a voltage stabilizer and crosslinked polyethylene. A gradient insulation system is formed through the inner layer, the middle layer and the outer layer composed of different raw materials, under the synergistic effect of all the components, electric field uniform distribution is achieved, partial discharge is effectively restrained, the strength and impact resistance of the cable in a high-voltage power transmission scene are improved, and the service life of the cable is prolonged.
Owner:NANJING HUJU LONGPAN CABLE CO LTD
Aluminum LITZ wire having an electrically insulative layer
PCT designated stageWO2026044045A1AnodisationPower plant arrangements/mountingLitz wireCorona discharge
Owner:KENYON INTERNATIONAL INC