1655results about "Conductive material" patented technology

The invention provides an aluminum alloy material, a preparation method thereof and a cable. The aluminum alloy material is prepared from the following components in percentage by mass: 0.03 percent to 0.06 percent of Si, 0.80 percent to 1.2 percent of Fe, 0.15 percent to 0.25 percent of Cu, 0.005 percent to 0.03 percent of B, 0.001 percent to 0.02 percent of Ti, 0.05 percent to 0.15 percent of Y, 0.08 percent to 0.2 percent of the total mass of La and Ce and the balance of Al. The specific content of Fe is added into the aluminum alloy material and cooperates with the rare earth elements Y, La and Ce, and the elongation at break of the aluminum alloy material is improved; meanwhile, due to the addition amount of the Y element, the fatigue resistance of the material is further improved, the toughness of the material is improved, and the heat resistance and cold resistance of the material can be improved. A specific content of boron element is added to form nuclear particles, so that the effect of refining grains is achieved, and the tensile strength of the aluminum alloy material is improved; and meanwhile, the resistivity of the aluminum alloy material is further reduced through cooperation of the boron element and other components. And the titanium element can also play a role in refining grains, so that the tensile strength of the material is further improved. The cable prepared from the aluminum alloy material can meet the requirement of a cable torsion experiment.

A medium-strength and high-conductivity aluminum alloy sheet and its preparation method, which relate to an aluminum alloy sheet and its preparation method. The purpose of the present invention is to solve the technical problem that when other alloying elements are added to existing aluminum alloys to improve the mechanical properties of the alloy, its electrical conductivity will be sacrificed. The medium-strength and high-conductivity aluminum alloy sheet includes the following components by weight percentage: Mg: 0.45-0.53%, Si: 0.4-0.46%, Cu: 0.1-0.5%, Fe≤0.16%, Zn≤0.01%, Mn≤0.03%, Cr≤0.02%, and the balance is impurities and Al. Method: First, prepare an aluminum alloy ingot; second, perform heat treatment; third, perform rolling; fourth, perform solution aging treatment. The electrical conductivity of the medium-strength and high-conductivity aluminum alloy sheet prepared by the present invention is above 53% IACS, while the hardness is higher than 75 HV and the tensile strength is higher than 187 MPa. The present invention can obtain a medium-strength and high-conductivity aluminum alloy sheet.

The invention relates to the technical field of preparation of aluminum alloy conductor materials, and particularly discloses a preparation method of an Al-Mg-Si-RE-based aluminum alloy conductor for a 10-35kV middle and low voltage cable, which comprises the following steps: adding a microalloyed intermediate alloy into an aluminum melt by adopting an addition method, stirring, smelting, refining, and casting to form, thereby obtaining the Al-Mg-Si-RE-based aluminum alloy conductor for the 10-35kV middle and low voltage cable. And performing annealing, rolling, wire drawing and aging heat treatment to obtain a final product. Wherein in the smelting stage, raw materials are completely melted at 700-750 DEG C; hexachloroethane is used as a refining agent for refining; annealing at 330-350 DEG C and preserving heat for 4-8 hours; and aging at 300 DEG C for 10 hours after deformation. In the preparation of a wire of a 10-35kV medium and low voltage power cable, the aluminum alloy wire has high conductivity of 62.1-62.5% IACS (International Annealed Copper Standard) and tensile strength of 101-117MPa by simplifying the process steps and optimizing the element ratio on the premise of ensuring the controllable raw material cost, and the mechanical property and electrical property requirements of the medium and low voltage wire are balanced.

Provided is an insulated electric wire including a conductor and a fluororesin layer containing a melt-fabricable fluororesin that is formed on the conductor, in which a peel strength measured by peeling the fluororesin layer from the conductor is 0.30 N / mm or more.

The present invention relates to a process for the manufacture of a water-soluble n-type conductive polymer, the process comprising the steps of: a) adding a monomer to a solvent system comprising water in the presence of a catalyst, thereby providing a reaction solution; b) allowing the monomer to polymerize in the reaction solution, thereby obtaining an n-type conductive polymer solution; and c) performing post-treatment on the n-type conductive polymer solution to obtain the water-soluble n-type conductive polymer.

The invention relates to the technical field of alloys, and discloses a high-strength silver-copper alloy and a preparation method thereof. The acidified carbon nanotubes are subjected to functional modification, methylbenzene-2, 4-diisocyanate reacts with surface active groups of the methylbenzene-2, 4-diisocyanate to introduce-NCO groups, then through hydroxyl reaction of-NCO and 4-hydroxyphthalic acid, a plurality of carboxyl groups are grafted on the surfaces of the carbon nanotubes, the carboxyl groups can firmly adsorb lanthanum nitrate through a coordination effect, and meanwhile, the carboxyl groups can also adsorb lanthanum nitrate through a coordination effect. The rare earth elements are prevented from being separated from the raw materials in the ball milling process, uniform distribution is ensured, the agglomeration tendency of the carbon nanotubes can be reduced, and the dispersity of the carbon nanotubes in the silver-copper alloy is improved; the carbon nanotubes have extremely high axial strength and excellent conductivity, the mechanical and electrical properties of the alloy material can be enhanced through load transfer and a conductive network effect, rare earth lanthanum is segregated at a grain boundary to form a pinning effect to refine grains, the alloy strength is further improved, and finally collaborative improvement of the strength and the conductivity of the silver-copper alloy is achieved.

The invention relates to a solar cell and a preparation method thereof. The preparation method of the solar cell comprises the following steps: filling a mold with first slurry to form a first conductive layer; covering the first conductive layer with second slurry to form a second conductive layer; covering the second conductive layer with third slurry to form a third conductive layer, and covering the second conductive layer with the third conductive layer and the first conductive layer to form a laminated body; and performing laser transfer printing on the laminated body to at least one surface of the battery piece, and co-sintering the laminated body to form a composite electrode so as to prepare the solar battery, wherein the first slurry and the third slurry respectively and independently comprise silver powder, and the conductive metal powder in the second slurry comprises one or more of copper powder, aluminum powder, silver-coated aluminum powder, silver-coated copper powder, copper-aluminum alloy powder and zinc powder. The battery efficiency is improved while the cost ratio of the composite electrode is reduced, and the win-win situation of cost reduction and efficiency preservation is realized.

The invention discloses a manufacturing process of an aluminum-clad steel composite automobile wire, which solves the problems of high copper consumption, high cost, imperfection of an aluminum strip copper scheme in a low-voltage loop, limited application of an aluminum-clad steel scheme in an automobile cable, low cost and the like in the prior art through the steps of material selection and optimization, cladding, wire drawing, terminal connection and welding. And problems exist in the welding process of the aluminum wire in the connector. According to the aluminum-clad steel composite automobile wire manufactured by the process, on the premise of ensuring the conductivity, the copper consumption is further reduced, the mechanical strength is improved, the corrosion resistance is enhanced, meanwhile, a reliable connection solution is provided, the production cost is reduced, the overall performance of an automobile wire harness is improved, and the service life of the automobile wire harness is prolonged.

The present application discloses a method for preparing ultra-long carbon nanotubes with an ultra-high yield. The method includes setting a substrate in a reactor, introducing a mixed gas 1 into the reactor to displace the air in the reactor with the mixed gas 1, and raising the temperature in the reactor until the reaction temperature is reached. The mixed gas 1 includes hydrogen and an inert atmosphere gas; continuously introducing a mixed gas 2 and a catalyst solution into the reactor to react to obtain ultra-long carbon nanotubes; the mixed gas 2 includes a carbon source gas, hydrogen, the inert atmosphere gas, and water vapor; the catalyst solution includes a catalyst precursor, a promoter, and a solvent. This method for preparing ultra-long carbon nanotubes with an ultra-high yield is called the substrate interception and orientation strategy. This method uses the substrate placed in the tubular furnace to intercept and orient the floating short tubes generated by chemical vapor deposition, which can significantly extend the growth time of the carbon nanotubes and finally grow them into ultra-long carbon nanotubes.

The invention discloses a compact extrusion type sheath power cable made of copper core crosslinked polyethylene and a processing technology, and relates to the technical field of crosslinked polyethylene insulated power cables, and the compact extrusion type sheath power cable sequentially comprises a conductor layer, a semi-conductive waterproof layer, a crosslinked polyethylene insulating layer, a composite shielding structure layer and a compact sheath layer from inside to outside. Through collaborative design of the gradient coating conductor and five types of stranding processes, conductivity and structural stability are remarkably improved, breakthrough suppression of local discharge capacity and optimization of electromagnetic shielding effectiveness are achieved by combining the insulating layer with the dielectric constants distributed in a gradient mode and the composite shielding structure, and the electromagnetic shielding performance is improved. And with the assistance of a nano enhanced sheath and ultrasonic crosslinking and liquid nitrogen shock cooling manufacturing processes, the cable has ultrahigh mechanical strength, extremely low porosity and excellent flame-retardant property, and the comprehensive performance of the cable is far beyond that of a conventional power cable.

The invention relates to a silver-coated copper composite material and a preparation method thereof, conductive paste and a solar cell. The silver-coated copper composite material comprises a copper core, a middle layer and a silver layer, the middle layer is arranged on the surface of the copper core, the silver layer is arranged on the surface, away from the copper core, of the middle layer, the middle layer comprises main metal elements and phosphorus elements, the main metal elements comprise at least one of nickel elements and cobalt elements, and the mass of the phosphorus elements accounts for 1%-4% of the total mass of the middle layer. By arranging the middle layer between the copper core and the silver layer, mutual diffusion between silver and copper can be effectively prevented, and the problem that traditional silver-coated copper powder is prone to oxidation is solved; according to the silver-coated copper composite material, the middle layer containing proper metal elements is doped with the phosphorus element, meanwhile, the doping content of the phosphorus element is controlled, the binding force between the middle layer and the copper core and the binding force between the middle layer and the silver layer can be effectively improved, the conductivity is guaranteed, meanwhile, the anti-oxidation temperature of the silver-coated copper composite material is effectively increased, and the thermal stability of the silver-coated copper composite material is improved.

The invention belongs to the technical field of conductor materials, and particularly relates to a creep-resistant high-strength high-conductivity aluminum alloy conductor material and a preparation method and application thereof. In the preparation process of the creep-resistant high-strength high-conductivity aluminum alloy conductor material provided by the invention, Be, Mo, Co and the like are introduced into the aluminum alloy conductor material through the intermediate alloy, and AlB3 is used for boronizing treatment; meanwhile, an expansion extrusion process is introduced between aluminum alloy continuous casting and continuous rolling processes, pre-aging treatment is carried out after solid solution heat treatment, and final aging treatment is carried out after drawing treatment; the components and the preparation process of the aluminum alloy conductor material are improved, the comprehensive performance such as conductivity, creep resistance and strength is remarkably improved, the comprehensive performance requirements of new energy automobiles on aluminum alloy conductors can be met, and the technical problem that in the prior art, the comprehensive performance of the aluminum alloy conductor material is poor is solved.

The invention relates to the technical field of cables, in particular to an aluminum alloy cable which is composed of an aluminum alloy conductor, an inner insulating layer, a fireproof wrapping tape layer and an outer sheath. The outer sheath is prepared from the following raw materials in parts by weight: 50 to 60 parts of ethylene-vinyl acetate copolymer, 20 to 30 parts of linear low density polyethylene, 10 to 20 parts of polyolefin elastomer, 5 to 10 parts of PPO-g-MAH, 20 to 30 parts of carbon black, 1 to 10 parts of organic phosphorus flame retardant, 20 to 30 parts of crusting agent and 1 to 3 parts of antioxidant; the aluminum alloy cable provided by the invention is light in weight, high in strength and excellent in fireproof and flame-retardant performance.

A solid electrolytic capacitor that includes an anode body having a porous part on surface thereof and a manufacturing method thereof including a step (i) of forming a first solid electrolyte layer on a dielectric layer and a step (ii) of forming a second solid electrolyte layer on the first solid electrolyte layer. The first and second solid electrolyte layers contain first and second conductive polymers, respectively. The step (i) includes a step (i-a) of supplying a reaction solution containing a monomer and a silane compound to the surface of the dielectric layer, and a step (i-b) of forming the first solid electrolyte layer by polymerizing the monomer in the supplied reaction solution to form the first conductive polymer. The monomer contains a compound represented by the following formula (I) (in the formula (I), R represents an alkyl group whose carbon number is within a range of 1 to 10).

The invention relates to the technical field of aluminum alloy wire manufacturing, and particularly discloses a high-strength heat-resistant aluminum alloy wire and a preparation method thereof.The high-strength heat-resistant aluminum alloy wire is composed of, by mass, 0.1%-0.2% of Zr, 0.05%-0.1% of Fe, 0.01%-0.03% of Zn, 0.06%-0.1% of Si, 0.18%-0.25% of doping substances, 0.01%-0.05% of other impurities and the balance Al, the doping substances are composed of W2B and MoB2, and the balance Al is Al. According to the high-strength heat-resistant aluminum alloy wire provided by the invention, through optimal design of zirconium (Zr), iron (Fe), zinc (Zn) and silicon (Si) elements and doped substances W2B and MoB, the heat resistance and tensile strength of the aluminum alloy wire are remarkably improved on the basis of keeping good conductivity of the aluminum alloy wire.

The embodiment of the invention relates to the photovoltaic field, and provides a cyanide-free electroplating silver-coated copper conductive material, a preparation method thereof and a crystalline silicon solar cell. The silver-coated copper electrode provided by the embodiment of the invention comprises a copper core and a copper-tin alloy electroplated layer coated on the surface of the copper core, the surface of the pre-plating material is coated with the silver electroplating layer; the surface of the silver-coated copper material is coated with the self-repairing layer; wherein the self-repairing layer comprises a resin film and a pH response type microcapsule, the microcapsule is embedded in the resin film, and the microcapsule is filled with an ammonium molybdate corrosion inhibitor. The copper-silver interface bonding force can be improved through the copper-tin alloy electroplated layer, and the silver layer material does not contain cyanogen and is environmentally friendly; the corrosion inhibitor in the pH response type microcapsule in the self-repairing film layer on the surface of the silver layer is released under a specific pH condition to form a protection film on the silver layer again, so that the self-repairing purpose is achieved, and the dynamic protection effect is achieved.

To provide a conductive paste capable of yielding a cured product (high-thermal-conductivity material) that is excellent in thermal conductivity as well as in adhesion strength and connection reliability.SOLUTION: The conductive paste of the present invention contains: particles having a surface composed of silver; and an adhesion promoter. The adhesion promoter contains a compound represented by the general formula (1) in the figure.SELECTED DRAWING: None

The invention relates to a process for preparing a phosphor copper rod by using a phosphonate-amide composite purifying agent as a quenching aid, and belongs to the technical field of non-ferrous metallurgy. Phosphorus pentoxide and sodium carbonate are mixed and decocted into fused salt, the fused salt is cooled and ground and then added into a corundum crucible together with scrap copper to be rapidly heated, compressed air is blown in, and slagging-off is conducted after heat preservation and standing; blowing mixed gas into the melt for reduction refining; adding calcium boride into the melt for refining; the refined copper liquid is subjected to continuous casting and continuous rolling; rapidly immersing the phosphorus copper rod subjected to continuous casting and rolling into a quenching aid solution, and carrying out quenching treatment; and the quenched phosphor copper rod is blow-dried and dried, and the high-conductivity phosphor copper rod is obtained. The high-purity phosphorus copper rod prepared by the method is excellent in key indexes of copper content, phosphorus content and conductivity, and meets the expected requirements of high purity and high conductivity.

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.

Proposed is a conductive hydrogel including a micelle and a metal-organic framework / surfactant composite.

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.

To provide a conductive material dispersion capable of securing superior dispersibility and conductivity, and a method for producing the same.SOLUTION: The present invention provides a conductive carbon material dispersion in which a conductive carbon material powder surface-treated with a compound having a catechol group is dispersed in water and / or an organic solvent.

The present application relates to a self-healing, electrically conducting elastomer, comprising an electrically conducting phase comprising PEDOT:PSS nanofibrils, and an electrically insulating phase comprising a polyborosiloxane-based polymer. The present application also related to a method for manufacturing the self-healing, electrically conducting elastomer.

A high-strength multi-functional coating with a multi-level structure, and a preparation method thereof are provided. In this application, a high-efficiency cladding method based on infrared laser-plasma synchronous compounding is adopted to prepare a micro-scale columnar crystal structure that is perpendicular to a substrate and serves as a pure thermally and electrically conductive channel, and to prepare submicro- and nano-scale ceramic reinforcement phases between columnar crystals, where the submicro- and nano-scale ceramic reinforcement phases are distributed along grain boundaries. The multi-level organizational structure of this application can simultaneously improve the hardness, wear resistance, and electrical and thermal conductivities of a cladding layer for a copper alloy and can improve the reliability of damage protection for a copper alloy component used in an extreme environment.

An ion-exchange membrane comprisinga resin composition comprisinga side-chain heteroaromatic resin having a structural unit represented by the following general formula 1:wherein,R1, R2, and R3 are each optionally the same or different, and are each a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, or a substituted or unsubstituted aromatic hydrocarbon group having 6 to 10 carbon atoms,R4 is a direct bond, a substituted or unsubstituted divalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, or a substituted or unsubstituted divalent aromatic hydrocarbon group having 6 to 10 carbon atoms, andHc is a substituted or unsubstituted heteroaromatic group having 4 to 30 carbon atoms, the group having at least one nitrogen atom in a heteroaromatic ring structure and containing a five-membered ring and / or six-membered ring structure, anda cation-exchangeable resin.

The invention belongs to the technical field of fuel cells, and discloses a metal organic framework material with proton conductivity and a preparation method and application thereof. Pyrazolo [3, 4-c] pyridine is used as a ligand, a binuclear cuprous cluster is used as a connection point, a two-dimensional layered structure is constructed through the ligand and the binuclear cuprous cluster, a cuprous multi-nitrogen heterocyclic metal organic framework is formed, the cuprous multi-nitrogen heterocyclic metal organic framework is oxidized, and the cuprous multi-nitrogen heterocyclic metal organic framework is obtained. Divalent copper ions and monovalent copper ions exist in the oxidized cuprous multi-nitrogen heterocyclic metal organic framework, and the metal organic framework material with proton conductivity is obtained. The proton conductivity of the metal organic framework material can be remarkably improved by adopting a metal post-synthesis modification oxidation technology, and the proton conductivity of the metal organic framework material is comparable with that of commercial Nafion, and an oxidized sample shows extremely high chemical stability; the problem of poor stability of a non-fluorinated hydrocarbon polymer proton exchange membrane and inorganic solid acid researched in the prior art is solved.

The invention discloses a cable head insulation paste reinforced cable, which relates to the technical field of cables, and comprises a main body mechanism, and the outer surface wall of the main body mechanism is movably sleeved with a protection mechanism; the protection mechanism comprises a protection sleeve; in the assembly process of the cable and the connector, the protective sleeve achieves accurate clamping through a linkage structure of gear transmission and rack pushing, after an arc-shaped plate drives a clamping block to be tightly attached to the protective layer, a spring drives a piston to extrude liquid insulation glue in a glue storage cavity, and the liquid insulation glue penetrates through a sealing film to form a uniformly-covered curing composite layer; the cured adhesive layer and the clamping block have a synergistic effect, and have multiple protection characteristics of isolating moisture permeation, strengthening connection rigidity and dispersing external impact, so that deterioration of insulation performance of a joint caused by invasion of water vapor or external pollutants can be effectively prevented, and contact resistance fluctuation caused by a vibration environment is also remarkably inhibited due to enhanced mechanical stability.

The invention relates to the technical field of electrical materials, and particularly discloses a graphene aluminum alloy rod for electricians and a preparation method of the graphene aluminum alloy rod. The graphene aluminum alloy rod for the electrician comprises the following raw materials in percentage by weight: 0.3%-0.5% of magnesium, 0.05%-0.08% of graphene, 1%-3% of silicon, 0.3%-0.6% of zinc, 0.01%-0.03% of tin, 0.005%-0.008% of chromium, 0.2%-0.5% of lanthanum, 0.4%-0.8% of boron, 1%-3% of a toughening agent, 0.5%-0.8% of an adhesive and the balance of aluminum. Under the synergistic effect of all the components, the overall strength of the aluminum alloy material can be effectively improved, and meanwhile good conductivity of the aluminum alloy material is kept.

Described herein are compositions for tunable intrinsically conducting elastomers and methods of making and using the same. The compositions include a conductive polymer, a polymer counterion, and optionally a bottlebrush block copolymer. Optionally, the compositions include a crosslinker and a photoinitiator. Also described herein are copolymer blends, elastomeric materials, and films including any one of the intrinsically conducting elastomers.