58results about How to "Meet the requirements of electrical conductivity" patented technology

The invention relates to a special low-temperature curing anti-silver migration laser etching conductive silver paste for a mobile phone touch screen and a preparation method thereof. The main components of the conductive silver paste are as follows: the silver powder content is 40%-75%, the polymer carrier content is 20-50%, and the additive content is 3-15%. The preparation of the slurry includes three steps of preparation of a polymer resin carrier, preparation of a conductive silver paste and post-treatment of the conductive silver paste. The paste has excellent anti-silver migration ability, and the migration rate is greatly reduced in a humid environment. The slurry has excellent laser etching performance, and can etch clear lines with a line width / space of 30μm / 30μm picture case. The slurry has good adhesion on PET, ITO film, ITO glass and ordinary glass. The pencil hardness is above 4H, and the minimum square resistance value can reach 20mΩ / square@1mil. It is compatible with insulating ink and peelable blue glue protective layer. Have good compatibility. In addition, the conductive silver paste is sintered and formed at low temperature, has low production cost, saves energy, does not contain halogen in the paste, and is an environment-friendly product.

The invention relates to a special ultralow temperature cured laser etching conductive silver paste for a mobile phone touch screen. The conductive silver paste mainly comprises the following components: 40%-75% of a conductive function phase, 6-15% of macromolecule resin, 15-35% of a solvent and 3-15% of an additive. The preparation of the silver paste comprises the steps of macromolecule regioncarrier preparation, conductive silver paste preparation and conductive silver paste post-processing. The conductive silver paste can be completely cured under the condition of an ultralow temperatureof 80-110 DEG C, the temperature is reduced by 20-50 DEG C compared with a curing condition of 130 DEG C of the existing conductive silver paste, and shrinkage, folding and deformation of a substratemembrane material during high-temperature curing are reduced. The paste has excellent laser etching performance, and a clear pattern with the line width / line spacing being 30 microns / 30 microns can be etched; the paste has good adhesion on PET, an ITO film, a silver nanowire conductive film, TIO glass and ordinary glass, the pencil hardness is above 2H, and the square resistance can reach up to 20m[Omega] / square@1mil. In addition, the conductive silver paste is sintered and molded at an ultralow temperature, low in production cost, energy-saving and free of halogen, thereby being an environment-friendly product.

The invention discloses a preparation method of a zinc oxide target and a preparation method of a zinc oxide film. The preparation method of the zinc oxide target comprises the following steps: providing a target raw material, and ball milling the target raw material for the first time to obtain powder; calcining the powder; ball milling the calcined powder for the second time and then granulating to obtain particles; forming the particles into a biscuit; degreasing the biscuit in air atmosphere to obtain a degreased biscuit; and anaerobically sintering the degreased biscuit to obtain the zinc oxide target. The zinc oxide target prepared by the preparation method of the zinc oxide target has good electrical conductivity. The conductive target may be made into a zinc oxide film high in resistivity and transparency by means of direct-current magnetron sputtering and oxygen atmospheric coating. The target prepared in the invention can meet the requirements for direct-current magnetron sputtering and high-resistance zinc oxide film preparation.

The invention discloses an electrode structure, a manufacturing method thereof, a display substrate and a display device. The manufacturing method of the electrode structure includes: forming a carbon nano tube film on a substrate; using modified materials to perform a doping process on the carbon nano tube film, performing pattern composition on the doped carbon nano tube film to form a pattern including a first electrode, or performing pattern composition on the carbon nano tube film to form a pattern including a carbon nano tube electrode, using modified materials to perform a doping process on the carbon nano tube electrode so as to form a pattern including the first electrode. Due to the fact that the modified materials are doped into the carbon nano tube materials, the formed first electrode is low in resistance, and the conductivity, required by flexible display, of the flexible electrode can be satisfied.

The invention discloses an electrolytic aluminum cathode steel-aluminum melting and brazing welding method. The method aims at solving the problems that in the production process of electrolytic aluminum, steel-aluminum welding efficiency is low, and a welding joint is poor in electrical conductivity. According to the method, a layer of welding flux with the thickness ranging from 80 microns to 150 microns is uniformly applied to each welding workpiece with a surface oxidation layer removed, and the generation amount of brittle compounds at the welding joint is reduced, so that mechanical performance of the welding joint is improved. The method that melting welding is conducted on the aluminum welding workpiece, and brazing welding is conducted on the steel welding workpiece is adopted; after preheating treatment is conducted, the aluminum welding workpiece and the steel welding workpiece are welded through welding wires. The method is low in cost, great in operability and uniform in welding composition; performance test results indicate that the pressure drop, formed after welding, at the welding joint can be lowered by 25 mV or more; the tensile strength can reach 110-150 Mpa; the shearing strength can reach 100-140 Mpa; electrical conductivity and mechanical performance are obviously superior to the traditional explosion welding mode; and economical benefits are remarkable.

The invention discloses a preparation method of a novel conductive silver adhesive with a high heat conductivity coefficient and the conductive silver adhesive. The preparation method comprises the following steps: plating silver on the surfaces of hollow heat-conducting microspheres to prepare silver-plated microbeads; preparing the silver-plated microbeads into a component A; preparing a component B; adding the component A into the component B, and performing vacuum defoaming and mixing to form a mixed product; subjecting the mixed product to vacuum filling to obtain the conductive silver adhesive. The density of conductive particles in any layer of the conductive silver adhesive of a multifunctional plate prepared by the method is close to that of a resin matrix, the problem of conductive particle sedimentation in mixing, stirring and processing use is thoroughly avoided, so that a more effective and reliable conductive network is introduced, and the batch consistency and the quality reliability are higher.

The invention discloses conductive polypropylene composite powder for selective laser sintering and a preparation method thereof.The conductive polypropylene composite powder is prepared from, by weight, 100 parts of polypropylene powder, 0.05-10 parts of alkyl modified carbon nano tubes, 0.05-20 parts of metal powder, 0.1-1.0 part of flow promoter, 0.1-1.0 part of antioxidant and 0.1-5 parts of powder separant.Due to addition of the alkyl modified carbon nano tubes and the metal powder, the conductive polypropylene composite powder for selective laser sintering has good conductivity.The invention further provides the preparation method of the conductive polypropylene composite powder for selective laser sintering.The process is simple, the conductive polypropylene composite powder with the powder size and distribution meeting SLS technological requirements and the alkyl modified carbon nano tubes and the metal powder scattered uniformly can be obtained, operation is easy, large-scale production and popularization can be realized, and broad market prospects and excellent market benefits are achieved.

The invention relates to a method using glass beads to treat an anti-rust paint layer of a steel aviation part, and belongs to the technical field of surface treatment of a paint layer material. The method comprises the following steps of surface preparation, protection of non-paint spraying surfaces, sand blasting, paint spraying, baking and curing, middle inspection and reworking, treatment by the glass beads, and final characteristic inspection. The method has the advantages that the surface of the paint layer material is treated by the glass beads according to proper parameters, the conductivity of the paint layer material is less than 15 ohms per 125mm, the property requirement on conductivity by the aviation middle-temperature aluminum anti-corrosive paint layer is completely met, the curing temperature is lowered from 560 DEG C to 300 DEG C, and the part deformation is controlled; the adhesion force of the paint layer treated by the glass beads is good, the excessive paint layer material with poor surface adhesion force can be removed from a part edge with easy warpage in the glass bead blasting process, and the risk of excessive matters in the working condition of an engine is avoided.

The invention relates to a bis phosphonic acid functional organosilicon high temperature proton conductor and a preparation method thereof, the preparation method of the proton conductor is as follows: (1) hydroxyethylidene bis-phosphonic acid tetrasodium salt and tetrahydrofuran are added into a four-mouth flask, completely dissolved, then heated to 45-60 DEG C, and then slowly added dropwise with isocyanate propyl trimethoxy silane, after the reaction is completed, bis phosphonic acid trimethoxy silane can be obtained; (2) the bis phosphonic acid trimethoxy silane as a main hydrolysis precursor, amino propyl trimethoxy silane and tetraethoxysilane as auxiliary hydrolysis precursors, ethanol as a solvent, and a suitable amount of hydrochloric acid as a catalyst are stirred at room temperature to obtain a sol; (3) the sol is dried, demoulded, and soaked with hydrochloric acid for post-processing to obtain the bis phosphonic acid functional organosilicon high temperature proton conductor. The bis phosphonic acid functional organosilicon high temperature proton conductor prepared by the method has high conductivity, good hydrolysis stability and thermal stability.

The invention provides an electroconductive thermoplastic elastomer composition with an excellent electroconductive performance, which is formed by the mixing of the following raw materials in parts by weight: 30-50 parts of oil charge SEBS (Styrene-Ethylene / Butylene-Styrene) elastomer, 10-20 parts of PP (propene polymer) powder, 20-45 parts of electroconductive carbon black, 3-5 parts of carbon black dispersing agent, and 3-5 parts of anti-adhesive agent, wherein the oil charge SEBS elastomer is formed by blending of an SEBS elastomer and naphthenic base charge oil according to the weight proportion of 1 to 3. The electroconductive thermoplastic elastomer composition with the excellent electroconductive performance is especially suitable for an electroconductive thermoplastic elastomer in manufacturing an anti-clamping strip in an automobile door.

The invention discloses an all-solid-state lithium-air battery composite positive electrode material and an all-solid-state lithium-air battery. The composite positive electrode material comprises a conductive carbon material, a micro-nano frame structure, a lithium-conducting polymer and a redox mediator, wherein the composite positive electrode material has the characteristics of good conductivity and high oxygen permeability; a discharge product can be oxidized in a positive electrode region; and the all-solid-state lithium-air battery with high circulation capability and high safety performance can be obtained on the basis of a positive plate prepared from the composite positive electrode material.