79results about How to "Good electrical conductivity" patented technology

The invention provides a robot joint dynamic cable made of a self-repairing polyurethane material and a preparation method of the robot joint dynamic cable, and belongs to the field of cables. Polytetrahydrofuran glycol and hexamethylene diisocyanate react to form a soft and hard segment structure, 1, 4-butanediol is added for chain extension, dopamine hydrochloride is introduced, the hard segment structure is enhanced, and a self-repairing hydrogen bond network is formed; carbon nanotubes are introduced, and through plasma treatment and silane coupling agent modification, the tensile resistance, fatigue resistance and electrical properties of the material are improved; montmorillonite is compounded with polyethyleneimine through organic treatment, so that the cracking resistance and wear resistance of the material are enhanced; epoxy groups are introduced to the surface of boron nitride, and dopamine hydrochloride is self-polymerized, so that excellent heat dissipation capability and dimensional stability are provided. Through the synergistic effect of the components, the composite material has excellent mechanical properties, electrical properties, heat dissipation, wear resistance and the like, is especially suitable for a dynamic cable of a robot, and can stably work in a complex environment for a long time.

The invention discloses a UV-CIPP material for pipeline repair and stress monitoring and a preparation method of the UV-CIPP material, and belongs to the technical field of intelligent materials. The preparation method comprises the following steps: respectively diluting MWCNT slurry according to a certain proportion; soaking the glass fiber in the dipping solution for a period of time, taking out and drying; coating two ends of the dried glass fiber with conductive silver adhesive, and pasting a copper electrode after curing; adding a thermal initiator into the ultraviolet curing resin; respectively preparing test pieces with different resin contents; and sequentially carrying out ultraviolet curing and thermocuring on the prepared test piece. The characteristics and advantages of the ultraviolet curing resin, the glass fiber and the resin material are combined, and the preparation problem of the ultraviolet curing composite material for repairing the intelligent pipeline, which does not influence the mechanical property of the material and can realize excellent monitoring capability, is solved.

The invention provides a composite structure with a conductive material coated on a single surface of a ceramic substrate. The composite structure comprises a ceramic substrate; a first conductive layer bonded to a surface of the ceramic substrate; and a second conductive layer bonded to the other surface of the first conductive layer that is not in contact with the ceramic substrate. Wherein the special conductor is used as the material of the middle layer, so that the purposes of being easy to process and joint, simultaneously maintaining heat dissipation and conductivity, and effectively dredging high current, high voltage and high power can be achieved.

The invention discloses a preparation method of a solar cell and the solar cell. The preparation method comprises the following steps: a main grid line of at least one main surface of the solar cell is formed by curing and printing low-temperature slurry, and other grid lines of the solar cell are formed by high-temperature sintering and printing high-temperature slurry except the main grid line formed by curing the low-temperature slurry. And the step of curing the printed low-temperature slurry is performed after the step of forming other grid lines. According to the scheme, the main grid lines on at least one main surface of the solar cell can be prevented from being in contact with the doping layer, so that the open voltage loss of the solar cell is effectively reduced.

The invention discloses a high-performance stable lithium battery composite diaphragm which comprises a multi-curved-hole fiber base membrane and an inorganic nano coating coated on the surface of the multi-curved-hole fiber base membrane, and the inorganic nano coating is composed of a silicate nano compound, a binder, an emulsifier and a solvent; and the multi-curved-hole fiber base membrane is a polyvinylidene fluoride / polyurethane two-component nanofiber membrane. Compared with the prior art, the surface of the multi-curved-hole fiber base membrane is coated with the inorganic nano-coating, so that high liquid absorption rate, liquid retention rate and electrical conductivity are maintained, and meanwhile, the characteristics of good thermal stability and high puncture-resistant strength are achieved; polyvinylidene fluoride and polyurethane exist in the multi-curved-hole fiber base membrane in the form of fibers at the same time, so that the multi-curved-hole fiber base membrane has high liquid absorption rate, porosity and strong ionic conductivity, and the tensile strength of the fiber membrane is improved; the main component silicate nano compound of the inorganic nano coating can improve the thermal dimensional stability and thermal safety of the diaphragm, and the lithium ion conductivity of the lithium battery diaphragm is higher.

The invention provides a red laser based on a perovskite structure and a preparation method thereof, and belongs to the field of semiconductor quantum dot lasers. The red light laser sequentially comprises a reflecting layer, a P-surface electrode, a hole transport layer, a perovskite active layer, an electron transport layer and an N-surface electrode from bottom to top, the reflecting layer is formed by alternately stacking HfO2 layers and SiO2 layers; the hole transport layer is formed by doping a scandium element into nickel oxide; and the perovskite active layer is a CsPbBr12 / PbSe heterojunction layer. According to the laser, the carrier transmission efficiency of the perovskite quantum dots in the active area is improved, and the output power and efficiency of the red laser are improved; an F-P cavity mode is used as a resonant cavity, and the output power of a laser beam is improved by increasing oscillation in a working medium. The red light laser has the advantages of being simple in structure, simple in preparation method, good in heat dissipation, high in luminous efficiency, high in photoluminescence intensity, low in threshold current, high in output power and the like.

The invention relates to the technical field of electrode materials, in particular to a composite silicon negative electrode material suitable for a sulfide-based all-solid-state battery and a preparation method and application thereof, and the preparation method comprises the following steps: (1) generating a metal organic framework material on the surface of a nano silicon material through an in-situ growth method; (2) carbonizing the metal organic framework material on the surface of the nano silicon material through calcination treatment to form a nitrogen-doped porous carbon material, so as to obtain a Si-NC material; and (3) generating a sulfide solid electrolyte on the surface of the Si-NC material through an in-situ growth method to obtain the Si-NC-SE composite silicon negative electrode material. According to the invention, the surface of the Si material is coated with the nitrogen-doped porous carbon material (NC) through an in-situ generation technology, and the sulfide solid electrolyte is generated in situ, so that the conductivity of the composite silicon negative electrode material and the cycling stability of the sulfide-based all-solid-state battery adopting the composite silicon negative electrode material are improved.

The invention discloses a treatment method of a graphene film and the graphene film obtained by the treatment method. The treatment method of the graphene film comprises the step of treating the graphene film by adopting ozone. Mild ozone (O3) is adopted to treat the graphene film, and the lattice structure of graphene cannot be changed. Meanwhile, ozonation is extremely high, so that organic impurities and pollutants can be effectively removed, and the chemical property of the surface of the material can be changed. Firstly, oxygen-containing functional groups (such as carboxyl and hydroxyl) can be introduced to the surface of graphene through ozone treatment, the hydrophilicity of the graphene is improved, and the binding capacity with other materials is improved. And secondly, the conductivity of the graphene can be optimized through ozone treatment, and the performance of the graphene in optoelectronic devices or electronic devices is improved, such as the application of the graphene in batteries, capacitors, field effect transistors or Hall elements. The method is simple, convenient and fast, and has a good industrial prospect.

The invention discloses an epitaxial growth method of an ultra-wide band gap lithium gallium oxide epitaxial film, and relates to the technical field of semiconductor process.The method comprises the steps that when a reaction chamber of MOCVD equipment is at a first temperature of a first temperature interval and at a first pressure of a first pressure interval, an oxygen precursor is input into the reaction chamber; carrying out surface pretreatment on the substrate material in the reaction chamber for a preset duration; and adjusting the temperature of the reaction chamber to a second temperature in a second temperature interval, maintaining the first pressure, simultaneously inputting a lithium precursor, a gallium precursor and an oxygen precursor into the reaction chamber based on a predetermined molar flow ratio for chemical vapor deposition, and growing a P-type lithium gallium oxide (LiGa5O8) epitaxial film on the surface of the substrate material. According to the invention, the ultra-wide bandgap P-type lithium gallium oxide (LiGa5O8) epitaxial film with stable quality and good conductivity can be grown on the surface of the predetermined substrate material.

The invention discloses a YNiCoSx / NCF catalyst and a preparation method thereof, and relates to the technical field of catalysts.The preparation method comprises the steps that NiCo foam is cleaned up and dried; the preparation method comprises the following steps: mixing Y (NO3) 2.6 H2O, powdered sulfur, N2H4 and deionized water to form a uniform mixed solution; niCo foam is put into the mixed solution, and a reaction is carried out at a certain temperature, so that YNiCoSx / NCF is obtained. The preparation method has the beneficial effects that a one-step hydrothermal method is adopted, the multi-phase-structure YNiCo trimetal sulfide with excellent electric conductivity, structural stability and hydrolytic performance is prepared on a NiCo foam matrix in situ, and the catalyst shows excellent water splitting electrocatalytic activity under the alkaline condition. By introducing the Y element, the HER and OER performances of the YNiCoSx catalyst are obviously enhanced.

The invention belongs to the technical field of medical experimental instruments, and provides an electrode device for subcutaneous implantation, comprising: an electrode comprising a cylinder structure and a barb structure arranged at one end of the cylinder structure; one end of the wire is connected with the cylinder structure; and the interface is connected to the other end of the wire. The section width of the electrode can be increased through the cylinder structure, the electrode can be stably implanted subcutaneously, and electrode displacement or damage caused by animal activity or tissue growth can be reduced. The barb structure enables the electrode to be better fixed subcutaneously, so that the electrode can be accurately positioned, the accuracy of an experimental result and the repeatability of an experiment are improved, and the complexity of surgical operation is also reduced.

The present invention provides a mesh heating element and a preparation method thereof, the preparation method comprising the following steps: providing a heating mesh, an electrode mesh and a substrate; wherein the mesh number of the electrode mesh is greater than the mesh number of the heating mesh; superimposing the electrode mesh, the heating mesh and the substrate together, the electrode mesh and the heating mesh are in contact and form a composite; printing a conductive paste on the composite with the substrate as a base; heating the substrate and the composite to pre-shape the conductive paste; separating the composite from the substrate, and then sintering the composite to obtain a mesh heating element; wherein the electrode mesh filled with the conductive paste serves as an electrode current collector of the mesh heating element. The preparation method can be used to prepare a mesh heating element with high resistance in the middle position and low resistance at the edge position, and the preparation method does not require welding, has a simple process, and is suitable for large-scale batch production. The present invention also provides a ceramic atomizer.

The present invention belongs to the technical field of gas sensors, and specifically relates to an isopropyl alcohol gas sensitive material and a preparation method and application thereof. The isopropyl alcohol gas sensitive material comprises a nanorod-shaped α-Fe 2 O 3 , BiFeO nanoparticles 3 The thin film rGO is reduced to thin film rGO by hydrazine hydrate reduction method, and the large specific surface area and intrinsic electron mobility of rGO are used to improve the α-Fe 2 O 3 Gas sensing performance for isopropyl alcohol. Compared with single α-Fe 2 O 3 Gas sensor, rGO(1.0wt%)‑6α‑Fe 2 O 3 / BiFeO 3 The gas sensitive material responds much better to isopropanol gas than to α-Fe under the same conditions. 2 O 3 and α‑Fe 2 O 3 / BiFeO 3 The composite material has a fast response-recovery capability, excellent stability and good selectivity. The gas-sensitive material is not only simple to prepare and low in cost, but also makes full use of BiFeO 3 and α‑Fe 2 O 3 The advantages of the sensor have greatly improved the overall performance of the sensor.

The invention relates to the technical field of photosynthesis power generation, and discloses a device and a method for realizing photosynthesis power generation based on a liquid metal-semiconductor junction. The negative electrode comprises a metal-semiconductor junction (MSJs) consisting of liquid metal and a silicon wafer; the thylakoid suspension is positioned between the positive electrode and the negative electrode and is extracted from spinach. The liquid metal is eGaInSn room temperature liquid metal. The method comprises the following steps: extracting crushed chloroplasts and thylakoid which are rich in photosynthetic devices such as a photosystem I (PSI), a photosystem II (PS) and the like in spinach leaves by using a salt solution separation method; in combination with flexible transparent indium tin oxide (ITO), the photosynthesis power generation device with the structure of Si / LMs / BBY / ITO is manufactured. The liquid metal and the silicon wafer are combined to obtain the MSJs as the negative electrode, the electron transfer efficiency of the power generation device is enhanced, the preparation is simple, the performance is excellent, and green power generation is realized.

The application discloses a metal oxide semiconductor device and a preparation method thereof, and relates to the technical field of semiconductors. The metal oxide semiconductor device comprises a substrate, an N-type drift region and a P-type body region in the substrate, the N-type drift region and the P-type body region are arranged adjacently along the surface direction of the substrate, a drain electrode is formed on the N-type drift region, a first lightly-doped part, a heavily-doped part and a second lightly-doped part are sequentially arranged in the P-type body region along the direction perpendicular to the substrate, and the projection of the heavily-doped part on the substrate is located in the projection range of the first lightly-doped part and the second lightly-doped part on the substrate, a gate electrode is located on the substrate and covers the interface between the N-type drift region and the P-type body region, and an active electrode is formed in the second lightly-doped part. The metal oxide semiconductor device can improve the reliability of the device while keeping the performance of the device.

The invention provides a manufacturing system of an aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire. The manufacturing system of the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire comprises a coating module for coating the aluminum-clad steel core with anti-corrosion oil, the stranding machine is used for stranding a high-conductivity aluminum wire outside the anti-corrosion layer so as to obtain the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire; and the fixing module is used for fixing and tensioning the aluminum-clad steel core and the aluminum-clad steel core anti-corrosion high-conductivity aluminum stranded wire in the manufacturing process. According to the system, the high-conductivity aluminum wires are stranded on the aluminum-clad steel core subjected to anticorrosive oil treatment, so that the aluminum-clad steel core anticorrosive high-conductivity aluminum stranded wire with excellent conductivity and excellent anticorrosive performance is formed, the overall performance and durability of the cable are further improved, the high-standard industrial application requirement is met, and the application prospect is wide. Meanwhile, the production process is optimized through the automatic manufacturing system, and the overall production efficiency and output of the manufacturing system are improved.

The present invention discloses an energy conversion / storage system based on high-conductivity / thermal-conductivity ultra-high-performance concrete and its application, which belongs to the field of intelligent / multifunctional cement-based material preparation and application. The present invention uses molybdenum-chromium stainless steel microwires with micron-level diameter, excellent electrical and thermal conductivity, high mechanical and stainless properties and ultra-high-performance concrete to synergistically prepare high-conductivity / thermal-conductivity ultra-high-performance concrete, and then develops an energy conversion / storage system based on the high-performance concrete with high conversion / storage efficiency, good long-term stability, excellent mechanical properties, and meeting the requirements of small-section / thin-plate component size. It can be directly used to develop bridge panels, road panels, airport road panels, steps and tunnel entrances that melt snow and ice through electric heating, for farms and household floor heating that use electric heating for heating, for bridge panels, road panels and airport road panels that collect thermoelectric energy by themselves; it can also be used as a solar thermal storage module to improve the collection and utilization rate of new energy.

The present invention discloses a preparation method and application of a MXene-poly eutectic-based conductive elastomer, comprising the following steps: preparing a clear, transparent, and performance-adjustable polymerizable eutectic solvent ternary system by a "one-pot method" by mixing a hydrogen bond acceptor choline chloride with a hydrogen bond donor acrylic acid and acrylamide; further adding a two-dimensional monolayer Ti3C2T x The nanosheets obtain a prepolymer solution of a multi-hydrogen bond network, and finally, under ultraviolet light initiation conditions, in-situ photopolymerization is performed to obtain a MXene / poly eutectic self-healing conductive elastomer. The preparation process of the present invention is simple, efficient, and green, and reduces the production cost of the material and the complexity of the process technology. The present invention improves the conductivity and strain sensitivity of the elastomer, enriches the hydrogen bond network composition in the conductive elastomer, and ensures the room temperature self-healing properties of the conductive elastomer. The conductive elastomer prepared by the present invention can be used for strain sensing detection for monitoring different human activities.

The invention provides a photocurable 3D printing material, a photocurable 3D printing gel product and a preparation method thereof, the photocurable 3D printing material comprises a polymerizable monomer, an ultraviolet light initiator and an imidazole ionic liquid without carbon-carbon double bonds, and a polymerization inhibitor or an ultraviolet light absorber is not added. The invention finds that the ionic liquid has a polymerization inhibition function for the first time, a polymerization inhibitor or an ultraviolet light absorber is not added into the photocurable 3D printing material, and the ionic liquid replaces the polymerization inhibitor and can also prevent implosion. In addition, the photocuring 3D printing gel product is good in transparency, can be applied to various occasions and has excellent conductivity, and a research thought is provided for manufacturing a high-precision conductive sensor.

The invention relates to the technical field of thermal batteries, in particular to high-conductivity slow-release heating powder and a preparation method and application thereof.The high-conductivity slow-release heating powder is prepared by introducing high-conductivity conductive graphite and slow-release inert powder and optimizing the raw material ratio in the high-conductivity slow-release heating powder, namely, 60%-80% of Fe powder, 15%-35% of KClO4 powder, 1%-5% of high-conductivity conductive graphite and 5%-15% of inert dispersed powder; the prepared high-conductivity slow-release heating powder has good conductivity and relatively slow heat release; and the conductivity and heat retention time of the Fe / KClO4 heating powder are obviously superior to those of Fe / KClO4 heating powder in the prior art.

The object of the present invention is to provide a conductive paste and a conductive pattern using the conductive paste, which can print a conductive pattern with less deviation in line width and high precision, and the printed conductive pattern also has high electrical conductivity and thermal conductivity, high migration resistance, etc. According to the present invention, as a conductive paste, a silver-coated copper sheet is used as a base, and silver-coated silica powder is added thereto, thereby providing a conductive paste containing a silver-coated copper sheet and a silver-coated silica powder, and a conductive pattern using the conductive paste. In addition, the conductive paste of the present invention may further contain a binder resin, a solvent, and may contain a curing agent.

This invention discloses a method for preparing oxygen-free copper, relating to the field of metallurgical technology, comprising the following steps: Step S1, raw material pretreatment; Step S2, gradient melting and deoxidation; Step S3, gradient refining; Step S4, directional solidification casting; Step S5, heat treatment. The oxygen-free copper prepared by this method exhibits good mechanical properties, excellent electrical conductivity and heat resistance, and low oxygen content.

The invention belongs to the technical field of solar cells, and relates to a preparation method, a product and application of a strong-polarity tin oxide nano material. A Meerwein reagent is used for carrying out ligand modification on an organic amine and organic acid modified SnO2 nano material to obtain a nano material modified by one or more ligands of tetrafluoroborate BF4 <->, Me3O <-> and Et3O <->, so that the nano material can be dispersed in a strong-polarity organic solvent and then is spin-coated or blade-coated on an ITO / FTO (indium tin oxide / fluorine-doped tin oxide) substrate or a perovskite layer; the obtained tin oxide film has relatively good conductivity and leveling property, excellent film-forming property and relatively good spreadability; meanwhile, the tin oxide organic strong-polarity dispersion liquid has long-term stability in the aspect of storage stability; and the material has excellent light conversion efficiency in the aspect of device performance.

The application discloses a cobalt hydroxide nanosheet / metal cobalt catalyst and a preparation method and application thereof, and belongs to the technical field of cobalt-based electrocatalysts. The preparation method comprises the following steps: taking pretreated porous foam metal cobalt as a substrate, and performing self-corrosion reconstruction in an alkaline nitrate aqueous solution to in-situ grow cobalt hydroxide nanosheets, so as to obtain the cobalt hydroxide nanosheet / metal cobalt catalyst. The preparation method is simple in operation, the synthesized catalyst can be directly used as an electrode, the high conductive characteristics of the metal substrate are maintained, the effective connection between the nanosheet and the substrate can be realized, and the catalytic active sites are increased. The catalyst can be applied to the efficient electrocatalytic synthesis of ammonia.

The invention discloses a film-forming agent with conductivity and corrosion resistance as well as a preparation method and application thereof, and the preparation method comprises the following steps: dissolving a conductive corrosion-resistant nano material, an acrylic acid homopolymer and a neutralizer in water to obtain the film-forming agent with conductivity and corrosion resistance, the conductive corrosion-resistant nano-material is prepared by the following method: sequentially adding zircon salt, an acidic copolymer, an oxidant and a monomer into water at-2 to 2 DEG C for reaction, and obtaining the conductive corrosion-resistant nano-material after the reaction is completed. The film-forming agent with conductivity and corrosion resistance provided by the invention can be widely applied to various metal substrates such as iron, copper, aluminum, magnesium-aluminum alloy and the like, provides long-time corrosion resistance, and has excellent conductivity.

The invention belongs to the technical field of semiconductor films, and relates to a visible-near infrared wide spectrum semiconductor transparent electrode and a preparation method thereof. The visible-near-infrared wide-spectrum semiconductor transparent electrode comprises a substrate and an indium tin oxide film formed on the substrate, the indium tin oxide film comprises In, O and Sn, and the film structure is a glass state indium tin oxide embedded In2O3 and SnO2 crystal particle network. The prepared indium tin oxide thin film is of a special structure that glassy state indium tin oxide is inlaid with an In2O3 and SnO2 crystal particle network, the scattering absorption of the thin film to near-infrared incident light is greatly reduced through the glassy state structure, and the average transmittance gt of the thin film in the visible to near-infrared band (380 nm to 2500 nm) is made to be gt; the In2O3 and SnO2 crystal particle network structure endows the material with good conductive characteristics, and the low resistivity of the material is lower than (lt: 10 <-3 > omega.cm).

The invention provides a method for preparing a carbon source by reinforcing kitchen waste based on a Fe composite MXene material. According to the method, the Fe composite MXene material is added in the anaerobic fermentation process of the kitchen waste, so that the external electron transfer capability of indigenous bacteria of the kitchen waste can be enhanced by utilizing Fe (III) sites on the surface of the material, the decomposition effect of organic matters in the kitchen waste is improved, and the quality of an organic biological carbon source is improved. Fe (III) on the surface of the material can be reduced by microorganisms to generate Fe (II), and the Fe (II) is oxidized into Fe (III) again when the Fe (II) is in contact with air, so that cyclic utilization of Fe (III) / Fe (II) is realized. The Fe composite MXene material can replace a traditional functional microbial agent and organic matter decomposing enzyme, the fermentation period of the kitchen waste is shortened, the solubility COD of the organic biological carbon source and the volatile organic acid carbon source are improved, and the method has wide application prospects in the aspect of preparing the carbon source from the kitchen waste.

The utility model provides an ultrathin telescopic line module and electronic equipment, and relates to the technical field of electronic equipment, the ultrathin telescopic line module comprises a data line, a rotating wheel and an electric adapter plate, the data line is wound on the rotating wheel, and the rotating wheel can rotate around the central shaft of the rotating wheel along two opposite clock directions so as to wind or unwind the data line; the electric adapter plate is connected to one end, in the axial direction of the rotating wheel, of the rotating wheel, the electric adapter plate exceeds the rotating wheel in the radial direction of the rotating wheel, and a plurality of electric connection positions are arranged on the side, facing the rotating wheel, of the electric adapter plate at intervals and electrically connected with one end of the data line. The thickness of the ultrathin telescopic line module provided by the utility model is relatively thin, so that the miniaturization of the electronic equipment comprising the ultrathin telescopic line module is facilitated.

The invention belongs to the technical field of polymer sheath materials for electric wires and cables, and relates to a polyamide composite material for a high-flexibility drag chain cable sheath. The polyamide composite material is prepared from the following components in parts by weight: 0.5 to 0.7 part of polysiloxane, 0.2 to 1.0 part of wollastonite, 0.08 to 0.1 part of electromagnetic rheological carbon fiber, 0.1 to 0.4 part of polyacrylonitrile fiber, 5 to 7 parts of organic silicone oil, 60 to 80 parts of polyamide, 20 to 40 parts of ethylene propylene diene monomer, 1 to 3 parts of polypropylene wax, 1.4 to 2.6 parts of antioxidant and 0.5 to 0.7 part of color masterbatch. The polyamide composite material prepared by the invention has excellent flexibility and wear resistance, can be processed and molded by a common extruder, and can be recycled.