31results about "Non-conductive material with dispersed conductive material" patented technology

A method for producing a surface-treated silver-containing powder comprises vacuum freeze drying a dispersion liquid, which is obtained by dispersing silver or silver compound particles (a) in a solvent together with a surfactant (b) of an alkylamine type or an alkylamine salt type, or a phosphate type having a phosphorus content of 0.5 to 10% by mass so that the surfactant (b) is adsorbed in the surface of the silver or silver compound particles (a), thereby producing a silver-containing powder (c) whose surface is treated with the surfactant (b). Moreover, a silver paste is produced by dispersing the surface-treated silver-containing powder (c) in a solvent, or in a solvent with a resin.

The invention discloses low-temperature conductive silver paste and a preparation method and application thereof. Silver nano wires and silver powder in conventional conductive silver paste are mixed to form novel low temperature conductive silver paste. The content of silver powder in conventional conductive silver paste is greatly reduced, and a few silver nano wires play good conductive effect. Conventional conductive silver paste requires circular silver particles which contact point-to-point to realize conduction, the silver nano wires can serially connect original silver particles, and the silver nano wires form a conductive network in a network shape. Conductive films, conductive switches, flexible print circuit boards, electromagnetic shields, potentiometers, wireless radio frequency identification systems and solar cells formed by the low-temperature conductive silver paste have better bending resistance performance.

A conductive particle 30 which can be used for connecting a variety of adherends is provided, and the conductive particle 30 includes a resin particle 31, a first conductive particle disposed around the resin particle 31, a first resin coating 25 disposed on the periphery thereof and softer than the resin particle 31, and a second conductive thin film 36 disposed therearound; and if the surface part of, for example, an electrode 13 of an adherend that is to be connected is hard, a first resin coating 35 and the second conductive thin film 36 are destroyed by pressure to bring the second conductive thin film 36 in contact with the electrode 13 and a metal wiring 17. If the surface part of the electrode 13 is soft, the second conductive thin film on the surface side comes in contact with the electrode 13, which makes it possible for the particle to be used regardless of the surface state of an adherend, in other words, be used for connecting a variety of adherends

The present invention discloses an aqueous primer composition comprising: (A) an aqueous dispersion of a non-chlorine-based modified polyolefin comprising the dispersion of an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a), having a melting point of 120° C. or lower and a weight average molecular weight within the range of 50,000 to 150,000, in an aqueous medium; (B) a water-soluble or water-dispersible polyol resin; and (C) a pigment, wherein the solid content weight ratio of component (A) to component (B) is within the range of 20/80 to 85/15, and component (C) is contained within the range of 0.5 to 200 parts by weight based on 100 parts by weight of the total resin solid content in the composition; and a method for coating a plastic molded product using the aqueous primer composition.

This invention relates to a novel polymerization initiator capable of introducing an active amino proton into a polymerization starting terminal without losing polymerization activity, and a novel modified conjugated diene polymer being excellent in the interaction with a filler and capable of improving a low heat buildup of a rubber composition, and more particularly to a polymerization initiator being a diamine compound in which one amino group is protected with a silylating agent and an active proton of the other amino group is replaced with an alkali metal or an alkaline earth metal, and a modified conjugated diene polymer which can be produced by using such a polymerization initiator and is a homopolymer of a conjugated diene compound or a copolymer of a conjugated diene compound and an aromatic vinyl compound and has a residue derived from a diamine compound at its polymerization starting terminal.

Provided is an auto-thermal evaporative liquid-phase synthesis method for cathode material for battery, comprising the following steps: (1) Adding a synthetic raw material of cathode material into a solvent to obtain a mixture A, the synthetic raw material of the cathode material containing lithium source, adding an accelerant into the mixture A, which makes the mixture A achieve a strong auto-thermal reaction to release heat to evaporate the solvent, and obtaining a solid precursor of the cathode material; (2) Drying the precursor, sintering in an atmosphere furnace and obtaining the cathode material. The method is simple in process, low in energy consumption, requirements for equipment and cost, and is applicable to industrial mass production and application. The cathode material obtained through the method is stability in batch, easy to process, low in internal resistance and high in capacity and has an excellent charging and discharging performance.

The invention discloses a method for preparing stainless steel fiber resin matrix composite conductive plastics. A resin material contains stainless steel fibers accounting for 3-40% of the overall weight, epoxy emulsion and silane coupling agent compound treating fluid are used as interface compatilizers, and a resin material layer is uniformly coated on a stainless steel fiber surface, so that the stainless steel fiber resin matrix composite conductive plastics are prepared. The method includes the steps: performing surface treatment for the stainless steel fibers by the aid of the epoxy emulsion and the silane coupling agent compound treating fluid and drying the stainless steel fibers in a drying oven; pulling out the stainless steel fibers by the aid of a coating die to coat the resin material on the stainless steel fiber surface; and dicing the stainless steel fibers into particles by the aid of a dicing cutter to obtain particles of the stainless steel fiber resin matrix composite conductive plastics. The conductive plastics prepared by the method have excellent mechanical performance and electrical conductivity, and the lowest volume resistivity can be 10-1omega.cm. Coaxial flange method test results indicate that the electromagnetic shielding property of the conductive plastics with the thickness of 2mm ranges from 40dB to 65dB within the frequency range from 30MHz to 1000MHz.

An electrically conductive composition and a fabrication method thereof are provided. The electrically conductive structure includes a major conductive material and an electrically conductive filler of an energy delivery character dispersed around the major conductive material. The method includes mixing a major conductive material with an electrically conductive filler of an energy delivery character to form a mixture, coating the mixture on a substrate, applying a second energy source to the mixture while simultaneously applying a first energy source for sintering the major conductive material to form an electrically conductive composition with a resistivity smaller than 10×10⁻³Ω·cm.

The present invention relates to a conductive paste and a solar cell. The conductive paste contains a conductive powder, including at least a silver powder, a glass frit composed mainly of Te, Bi and Zn, and an organic vehicle. The total molar quantity of the three components of Te, Bi and Zn contained in the glass frit is, in terms of oxide, set at 95 mol% or more. Light-receiving surface electrodes (3) are formed by using the above-conductive paste. Thereby, a conductive paste suitable for forming solar cell electrodes is achieved, the conductive paste being capable of reducing both of the contact resistance between the electrodes and the semiconductor substrate, and the line resistance of the electrodes, while being lead free. Furthermore, a solar cell having high energy conversion efficiency and excellent battery characteristics is achieved as a result of using the conductive paste.

The invention discloses solar energy electrical conduction slurry and a preparation method thereof. The slurry comprises, by weight, 70-80 parts of aluminium powder, 9-25 parts of an organic bonding agent, 2-8 parts of a glass binder, 0.02-5 parts of a silane coupling agent and 0-2.5 parts of a dispersing agent. The technical scheme includes that lead is not included, good electrical conductivity, weather resistance performance and chemical resistance are provided, the photoelectric conversion efficiency of a battery is high, and the low warp performance is good.

The invention relates to a method for preparing the conductive filler of antistatic materials. The method belongs to the technical field of conductive filler. The method aims at the existing problems including the loss of antistatic performance during the long-term use of antistatic conductive fillers, the large additive amount of carbon black, the low dispersity and the poor mechanical properties of carbon black in substrate, and the poor adjustability. To prepare the conductive filler of antistatic materials with high antistatic performance, at first, the method utilizes the natural conductive antistatic materials contained in sugarcane roots and soybean sprouts to cultivate microorganism through stewing and crude extracting, and blending with nutriment; during the cultivation period, the antistatic performance of the microorganism is improved by using electricity as the induction to promote the variation of the microorganism; then, the microorganism is used to modify the carbon black to improve the dispersity and the mechanical properties of the carbon black, while the conductivity of the carbon black is further improved by loading silver ions on the surface of the carbon black.

This invention relates to a screen type half protection sleeve for wires and cables, which is composed of two half parts, a leg and a groove are set between the two parts to form a locking unit to each other and the formula of the material of the sleeve is in the following weight proportions: polyolefin plastic: 100, metal powder: 5-20, carbon black: 5-65, stabilizer: 0.3-15 and toughening midified booster: 0-16.

Provided is a conductive paste composite. The conductive paste composite comprises first conductive powder having a first average grain size, and second conductive powder having a second average grain size.

The invention relates to the technical field of conductive silver paste, particularly to a low-temperature curing touch screen conductive silver paste suitable for laser etching processing. The paste comprises the following components: 55% to 70% of metal silver powder, 6% to 12% of macromolecule resin, 15% to 25% of solvent and 2% to 6% of additive, the metal silver powder is dendritic or flaky silver powder, the particle size of the metal silver powder is smaller than 1 micrometer, and the tap denity is 2.0 to 2.5g/cm3. According to the low-temperature curing touch screen conductive silver paste provided by the invention, the conductive silver paste is cured at 80 to 120 DEG C, the curing temperature is low and extremely low electrical resistivity is achieved, the adhesion to a conductive thin film and the surface hardness are improved, the solvent resistance and weather resistance are well improved, and the paste is touch screen paste suitable for high-density laser etching of L/s 30/30[mu]m and above.

The invention relates to low-temperature conductive silver paste for automobile safety belt alarming and a preparation method thereof. The conductive silver paste comprises the following components inparts by mass: 15-45.4 parts of a resin carrier, 40-45 parts of flake silver powder, 10-15 parts of nanorod silver powder, 2-5 parts of a hardening agent, 0.2-0.5 part of an anti-settling agent and 0.45-1.1 parts of a silicon reagent. The preparation method comprises the following steps: (1) high-speed dispersion; (2) grinding; (3) vacuum filtration; and (4) homogenizing and stirring. Compared with the prior art, the conductive silver paste prepared by the method has the advantages of good conductivity, high adhesive force, high hardness, good flexibility, friction resistance and the like.

The invention discloses a preparation method of cellulose-based conductive hydrogel. The method comprises the following steps: adding cellulose into a zinc chloride solution, and grafting monomers onto the cellulose under the action of an initiator, wherein the monomers are acrylonitrile and acrylamide, According to the invention, the hydrogel is prepared by adopting a one-step method, the processis simple and easy to operate, and the prepared hydrogel has excellent tensile property, compression resistance, frost resistance and conductivity, and also has excellent conductivity at low temperature.

The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.

The invention discloses solar cell conductive mixed paste containing polyethylene vinyl acetate. The solar cell conductive mixed paste containing the polyethylene vinyl acetate is prepared by the following raw materials: by weight, A materials 58-61, B materials 24.8-26.8, triethyl citrate 0.2-0.4, octyl epoxy stearate 0.3-0.5, polyethylene vinyl acetate1.8-2.6, poly adipic acid glycol1-2, castor oil 1-2, silane coupling agents KH602 1-2, and organic silicon flatting agents 1-2. Due to the fact that lead is not contained, the solar cell conductive mixed paste containing the polyethylene vinyl acetate completely conforms to the requirements of environmental protection, can be applied to the production of solar cells, and can form strong adhesion on the surfaces of solar cells, and cell photoelectric conversion efficiency is high.

A high-efficiency back electrode local aluminum paste crystalline silicon solar cell is composed of the following components proportioned to weights: 70-85 of parts powder, 1-30 parts of organic carrier, 0.1-10 parts of inorganic binder, 0.1-1 parts of auxiliary conductive additives. The aluminum paste is mainly used to manufacture the passivated emitter and back electrode of silicon solar cell with dot or linear contact on rear surface. PERC aluminum paste printed on the passivated film of the silicon wafer with dot-opening or linear-opening is dried and sintered.

The invention provides an automatic production process of graphene electrocondution slurry, belonging to the technical field of preparation of graphene electrocondution slurry. According to the automatic production process of the graphene electrocondution slurry, the graphene electrocondution slurry comprises the following raw materials: 50-70 parts of raw graphite stone, 10-20 parts of metal powder, 5-10 parts of epoxy resin, 3-5 parts of sodium nitrite, 5-10 parts of a dispersant and 0.5-2 parts of a defoaming agent. The graphene electrocondution slurry is prepared from the following raw materials in parts by weight: 63 parts of the raw graphite stone, 10 parts of the metal powder, 10 parts of the epoxy resin, 5 parts of the sodium nitrite, 10 parts of the dispersing agent and 2 parts of the defoaming agent. The process comprises the following specific step: S1, carrying out primary crushing on 63 parts of the raw graphite stone by utilizing crushing equipment, and then repeatedly grinding the crushed graphite raw stone particles by utilizing a grinding machine to prepare graphite powder; By adopting a simple automatic production and processing technology, rapid production and processing are facilitated, and meanwhile, the produced graphene electrocondution slurry is stable in conductivity.

The present invention relates to a conductive paste for a solar cell electrode, including a metal powder, a glass frit and an organic vehicle, wherein the metal powder includes a metal powder having a sintering shrinkage rate of 15 to 30%, whereby the light-receiving area of the front electrode of a solar cell formed using the conductive paste including the metal powder having an increased sintering shrinkage rate can be enlarged and short-circuit current (Isc) can be increased, thus increasing the power generation efficiency of the solar cell.

The invention discloses a conductive slurry organic carrier and preparation and application thereof. The invention particularly relates to an organic carrier suitable for low-temperature sintering of conductive silver slurry and preparation and application thereof. One of the better schemes of the organic carrier comprises 5.77% of polyvinylpyrrolidone, 30.77% of n-hexanol (1-Hexanol), 30.77% of diethylene glycol monobutyl ether acetate, 30.77% of terpilenol and 1.92% of castor oil. The problems that existing conductive silver slurry is high in sintering temperature, cracks exist on the volatile surface and the like are solved, and raw materials are low in cost and easy to purchase; the prepared organic carrier is moderate in viscosity, is applied to conductive silver paste, the paste is good in rheological property, good in printing performance and high in resolution ratio, low-temperature sintering can be achieved, the conductivity is high after sintering, the surface is smooth, and necessary conditions are provided for application of high-resolution and high-conductivity solar grid line plates and the like. The invention can be used for preparing high-resolution solar grid line plates and the like.

The invention discloses solar cell conductive paste containing phthalic acid ester. The solar cell conductive paste containing the phthalic acid ester is prepared by the following raw materials: by weight, A materials 66-68, B materials 18-22, phthalic acid ester 0.5-0.8, and castor oil 1-2. Due to the fact that lead is not contained, the solar cell conductive paste containing the phthalic acid ester completely conforms to the requirements of environmental protection, can be applied to the production of solar cells, and can form strong adhesion on the surfaces of solar cells, cell photoelectric conversion efficiency is high, and meanwhile silver powder, aluminum powder and copper powder of different particle diameters are selected to increase contact areas among particles. Therefore, conductivity of silver paste is improved.