439 results about "Conductive ink" patented technology

There is described an artificial intelligence wearable ECG skin patch (400) to detect sudden cardiac arrest. The wearable ECG monitoring patch (400) with AI based predictive analytics and remote based cardiac monitoring (615) system that can detect cardiac arrhythmias automatically in real-time and make a diagnosis with AI models trained with acquired data. The wearable skin has a biocompatible polymer patch (400) which captures the electrical signal through a flexible printed electronic technology based conducting ink and a substrate. The microcontroller controls (201), store and transmit the data packets. The IoT connected signal transmission is capable of recording and transferring the data packets through wireless communication. The AI engine is capable of analysing, evaluating, testing and providing the data packets of sudden cardiac arrest through a peak detector algorithm. The ECG skin patch (400) to detect and measure the sudden cardiac arrest with the R-R interval time series to obtain heart rate variability.

An apparatus, system, and method for providing a moisture supplementation detection device. The moisture replenishment detection device includes: a flexible substrate having a circuit screen-printed therein, the circuit including a plurality of conductive ink layers and a dielectric ink layer; a sensor on the flexible substrate, wherein the sensor is capable of detecting element data indicative of a characteristic of sweat; an untreated chromatographic paper placed in contact with the skin of the user and capable of wicking sweat from the skin to the sensor along the micro-sized fluid channel; and a Bluetooth antenna on the flexible substrate and in communication with the sensor, and capable of wirelessly communicating the element data to an application capable of indicating to the user the user the suitability of moisture replenishment based on the element data.

The invention discloses a method for preparing nano copper powder based on a microwave-assisted reduction method and application. The method comprises the following steps: a) preparing a copper ion solution; b) adding a dispersing agent and a surfactant; c) adding a reducing agent; d) microwave heating reaction; e) separating and purifying a product; and f) drying. According to the method, directional reduction and morphology regulation and control of copper ions are achieved through the synergistic effect of a microwave field and chemical reduction, the specific surface area of the obtained product reaches 25-35 m < 2 > / g, the oxygen content is lower than 0.8 wt%, and excellent performance is shown in the fields of electronic packaging and conductive ink; the method has the characteristics of short reaction time (shortened by 90% compared with the traditional method), low energy consumption (less than 0.5 kWh / kg), no harmful by-product and the like, and meets the requirements of green chemical industrial production.

The invention belongs to the technical field of conductive ink, and particularly relates to conductive UV ink-jet ink containing silver nanowires and a preparation method of the conductive UV ink-jet ink. According to the preparation method, the carbon nanotubes are subjected to composite modification, silver loading is realized through a heating reduction method, photocuring performance is obtained by means of grafting of dopamine and acrylic acid, and the conductive UV ink-jet ink containing the silver nanowires is prepared by being matched with the modified silver nanowires for common use, so that the conductive UV ink-jet ink containing the silver nanowires is prepared on the basis of ensuring that the ink is dispersed stably and does not generate precipitates; and the conductivity is effectively improved.

Examples include a functionalized compressible nonwoven material (CNM) cushion with a three-dimensional (3D) pressure-varying electrical conductance (PVEC) region. Integrated with the PVEC surface area is a conductive ink printed on thermoplastic film (CPT) single-sided conductance measurement coupling. The CPT single-sided conductance measurement coupling includes, on the thermoplastic film, N pairs of contact pads and N pairs of pad connection traces. The N pairs of contact pads are maintained, by thermoplastic adhesion, in direct electrical contact with the PVEC surface areas. The N pairs of connection traces extend from the N pairs of contact pads to trace terminals. A conductance measuring circuit selectively applies, via the N pairs of connection traces, voltage and a path to ground to the pairs of contact pads, and measures the resulting current.

The invention discloses a multifunctional wound patch combined with electrical stimulation therapy and a preparation method and application thereof, and relates to the technical field of medical materials, and the multifunctional wound patch comprises a double-layer electrostatic spinning fiber membrane, a conductive ink layer and a conductive hydrogel layer. S-shaped concentric circle conductive electrode pairs written by conductive ink are integrated on the surface (directly in contact with the wound) of the hydrophobic fiber layer, and square conductive ports with corresponding sizes can be drawn at the tail ends of the two electrodes as required. And the surface of the conductive electrode pair is packaged by conductive hydrogel with an antibacterial function. An external electric signal can be transmitted to the electrode pair of the patch through the conductive port of the electrode pair, and then acts on a wound through the conductive hydrogel layer, so that on-demand electrical stimulation treatment on the wound is realized. According to the multifunctional wound patch combined with the electrical stimulation therapy, discharge of redundant seepage can be achieved, and it is guaranteed that the wound environment is good; the curcumin-loaded medicine has the effects of resisting bacteria, resisting oxidation and promoting healing on wounds.

Systems and methods for press-forming a flexible thin sheet of ceramic paste, such as, e.g., barium titanate, into a wavy shape. The wave may be 1-dimensional, such as, e.g., a sinusoid, or 2-dimensional, such as, e.g., an egg-crate shape. A mold embossed with a reverse, or negative, of an intended form of the wavy shape may be used. The egg-crate shape ceramic layers may be stacked with alternating sheets of a conductive, or electrode, material before being sintered and densified. Alternatively, the ceramic sheets can be layered with the sheets of conductive material, and then pressed into the wavy shape together. Optionally, conductive ink may be applied to the ceramic sheets instead of using sheets of conductive material in both cases.

The invention discloses a manufacturing method of a flexible electronic skin light source, which comprises the following steps: cutting a base material to obtain a base material raw material with a required size; obtaining conductive silver paste, mixing the conductive silver paste with a diluent, and uniformly stirring to prepare conductive ink; printing conductive ink on the surface of the base material raw material according to a preset circuit pattern by using screen printing equipment to obtain a base material circuit diagram; placing a light source patch at a corresponding position of the substrate circuit diagram, and electrically connecting the light source patch with the circuit diagram by adopting welding equipment to obtain an electrically connected light source patch substrate; laminating a polyimide reinforcing material on the back surface of the light source patch to obtain a flexible light source semi-finished product; the flexible light source semi-finished product is packaged, the flexible light source semi-finished product is completely wrapped, and the flexible electronic skin light source is obtained; the flexible electronic skin light source manufactured through the method can be bent in any direction, the bending frequency of the flexible light source is greatly increased, and the service life of the flexible light source is greatly prolonged.

The invention discloses a modified MXene conductive polymer bacterial cellulose composite fiber electrode and a preparation method and application thereof, and belongs to the field of composite conductive super-strong fiber preparation. The preparation method comprises the following steps: mixing K-MXene and a conductive polymer to obtain composite conductive ink; then, the strip-shaped BC hydrogel is crosslinked with composite conductive ink through a hydrogen bond, and K-MXene / PEDOT: PSS-coated BC conductive hydrogel is obtained; secondly, the conductive hydrogel is subjected to a wet state-drafting technology and a wet state-twisting technology, and K-MXene / PEDOT: PSS-BC conductive composite large fibers are obtained; finally, the p-K-MXene / PEDOT: PSS (at) BC composite conductive large fiber electrode is obtained through dip coating of PDMS dispersion liquid and solvent replacement, and the p-K-MXene / PEDOT: PSS (at) BC composite conductive large fiber electrode is obtained. The prepared fiber electrode and commercial yarn can be woven into an intelligent fabric which is used for a self-powered sensor and reliable detection of human body signals.

Conductive ink compositions comprising gold complexes are provided. Also provided are methods of preparing the conductive ink compositions, methods of forming conductive structures from the conductive ink compositions, and structures formed from the conductive ink compositions. The conductive ink compositions preferably comprise a gold metal, an alkylamine ligand, and a solvent. The conductive ink compositions can be used to form conductive structures comprising gold, for example by inkjet or other printing methods, at temperatures of 300° C. or less. Such conductive structures can be formed on a variety of substrates.

Provided are a conductive ink capable of forming metal wiring having low volume resistivity, a method for producing a copper-nickel sintered film, and a copper-nickel sintered film.　This conductive ink comprises copper particles, a copper complex, and a nickel complex, the copper complex being a complex represented by Cu(HCOO)2(L)m and the nickel complex being a complex represented by Ni(HCOO)2(L)n, where L is at least one selected from the group consisting of 2-amino-2-methyl-1-propanol, 1-amino-2-propanol, 2-amino-1-butanol, 2-(methylamino) ethanol, and 2-aminoethanol, m is a natural number of 2-6, and n is a natural number of 2-6, the ratio of copper contained in the copper complex to the total of the copper particles and the copper contained in the copper complex being 0.5-15.0 mass%, and the ratio of nickel contained in the nickel complex to the total of the copper particles, the copper contained in the copper complex, and the nickel contained in the nickel complex being 0.5-7.0 mass%.

The invention provides a preparation method of high-conductivity composite graphene, conductive ink and application thereof, and the preparation method comprises the following steps: dispersing graphene into a solvent to obtain a graphene dispersion liquid; adding a silane coupling agent with an amino group into the graphene dispersion liquid, and reacting to obtain aminated graphene; and adding a first dispersing agent into the aminated graphene, adding silver powder after uniform dispersion, and grinding to form an Ag-N coordinate bond between the silver powder and the aminated graphene, thereby obtaining the high-conductivity composite graphene. In the preparation method of the high-conductivity composite graphene provided by the invention, a silane coupling agent with an amino group is added into a graphene dispersion liquid, amination modification is completed through a condensation reaction with a hydroxyl group on the surface of the graphene, silver powder and the amino group of the graphene form an Ag-N coordinate bond, so that silver particles are completely coated with the graphene, a continuous C-Ag-C conductive network is constructed, and the high-conductivity composite graphene is obtained. According to the network, path breakpoints are reduced, interface contact resistance is reduced, charge transmission efficiency is improved, conductivity reduction after graphene compounding is effectively inhibited, and high conductivity and high heat resistance are achieved.

The antenna module may include: an antenna board including a plurality of conductive layers and having an external hole formed to penetrate the plurality of conductive layers, the antenna board including a dielectric layer disposed between at least two conductive layers and having polytetrafluoroethylene; a plurality of radiation structures disposed on the antenna board; a plated through-hole formed to penetrate the dielectric layer and at least one of the plurality of conductive layers within the external hole and electrically connected to at least one of the plurality of radiation structures; and non-conductive ink disposed between the external hole and the plated through-hole. The thermal expansion coefficient of the non-conductive ink in the stacking direction of the plurality of conductive layers may be lower than the thermal expansion coefficient of polytetrafluoroethylene in the stacking direction of the plurality of conductive layers.

Disclosed are an electron-transport conductive ink containing a benzodifurandione-based compound, a preparation method therefore, and application thereof. The conductive ink comprises a benzodifurandione-based compound, a specific surfactant, and a solvent;the benzodifurandione-based compound has the following structural unit:The present disclosure introduces a specific surfactant capable of interacting with the benzodifurandione-based compound, which is usually a unit capable of forming a hydrogen bond or ionic electrostatic force with the benzodifurandione-based compound, such that, in addition to the dispersion ability of the surfactant, the force makes the benzodifurandione-based compound more stable after dispersion, preventing aggregation over time and ensuring better dispersion stability.

The invention discloses printing equipment for RFID antenna production, which comprises a printing table and a printing unit, a pressing mechanism is arranged on the top surface of the printing table, the pressing mechanism is used for pressing an RFID antenna base material and a template on the top surface of the printing table, the printing unit is arranged on the top surface of the printing table, and the printing unit comprises a scraping printing assembly and an adjusting assembly. The printing unit comprises a scraping and printing assembly and an adjusting assembly, the scraping and printing assembly is used for scraping and printing conductive ink on a template and an RFID antenna base material, the adjusting assembly is used for adjusting the scraping and printing assembly so as to scrape and print the RFID antenna base material and the template with different thicknesses, and the gathering unit is arranged on the outer side of the printing unit and used for gathering the diffused conductive ink. The gathering unit is arranged on the printing unit to ensure that the printing unit performs uniform scraping printing on the RFID antenna base material and the template, and the mixing unit is arranged on the outer side of the gathering unit and is used for mixing the stored conductive ink in real time.

Improved conductive ink compositions are provided. The improved conductive ink compositions include a silver complex formed by mixing a silver carboxylate, specifically a silver decanoate, a cyclic azasilane adhesion promoter, and at least one dissolving agent. The silver carboxylate of the subject ink compositions is decarboxylated at a temperature of 250 °C or less, optionally in the presence of an acid stabilizer or non-acid stabilizer, to form a conductive structure. Methods of making the compositions and methods of forming conductive structures from the compositions, including methods where the disclosed compositions are applied to a substrate by various techniques, are also provided.

A cell and tissue culture device and method to obtain same are disclosed. An embodiment includes a support electrode having a first electrically-non-conductive substrate sheet, a first patterned circuit made of a conductive ink applied on the substrate, a first plurality of patterned graphene dots connected to the first electrically conductive patterned circuit, a dielectric ink coating having patterned openings for exposing the graphene dots; a multi-well plate having a plurality of wells that receive the culture; a lid electrode having a second non-conductive substrate sheet; a second patterned circuit made of a electrically conductive ink applied on the substrate, a plurality of inserts; a second plurality of patterned graphene dots connected to the second electrically conductive patterned circuit. Each graphene dot is arranged on an insert to apply electrical stimulus to the culture and tissue, wherein the multi-well plate is between the support electrode-and the lid electrode.

The invention relates to the technical field of conductive ink preparation, discloses preparation equipment of metal-doped carbon composite material conductive ink, and solves the problems that metal and carbon composite materials are usually put into the equipment at a time during feeding of existing conductive ink preparation equipment, and materials are caked when a large number of materials enter a solution together, so that the production efficiency of the conductive ink is improved. The device comprises a mixing tank, four supporting legs are annularly and fixedly installed at the bottom of the mixing tank at equal intervals, foot pads are fixedly installed at the bottoms of the four supporting legs, a feeding valve is fixedly installed on the upper portion of the surface of the mixing tank, and a discharging valve is fixedly installed on the lower portion of the surface of the mixing tank. A mounting cylinder is fixedly mounted at the top of the mixing tank; a feeding hopper is fixedly mounted at the top of the mounting cylinder; according to the conductive ink preparation equipment, metal and carbon composite materials can be intermittently and uniformly fed into the equipment during feeding, and caking caused by the fact that a large number of materials enter a solution together is avoided, so that the preparation speed is increased, and the preparation quality is improved.

The invention relates to the field of processing of transparent conductive films, and particularly discloses a preparation method of an ultrahigh-electrical-stability silver-gold core-shell nanowire transparent conductive film, which comprises the following steps: preparing a precursor liquid A from a gold source aqueous solution and a sulfite solution; uniformly mixing water, polyvinylpyrrolidone, a reducing agent and the alcohol dispersion liquid of the silver nanowires to obtain a reaction solution B; mixing the precursor solution A with the reaction solution B to prepare a silver-gold core-shell nanowire dispersion liquid; uniformly mixing the silver-gold core-shell nanowire dispersion liquid, a binder, a leveling agent and a solvent to obtain silver-gold core-shell nanowire conductive ink; and uniformly coating a substrate with the silver-gold core-shell nanowire conductive ink to obtain the silver-gold core-shell nanowire conductive thin film. The silver-gold core-shell nanowire conductive film can be used for preparing a silver-gold core-shell nanowire conductive film conductive electrode.

Materials and methods for metallizing target substrates and metallized structures formed according to these methods are provided. The methods generally involve the formation of a conductive seed layer on a target substrate. The conductive seed layer is formed using a conductive ink composition that is converted to a conductive metallic film on the target substrate. The conductive metallic film is then metallized using standard additive techniques such as electroplating. The methods can further include masking and unmasking steps and optional etching of the metallized surface to generate conductive patterned structures. Also provided are metallized structures that comprise a conductive seed layer on the target substrate and a metallized layer on the conductive seed layer. In some cases, the metallized structures are prepared according to the disclosed methods.

The application discloses a kind of high shielding property graphene conductive ink and preparation method thereof, wherein, the steps of preparation method include: graphene is treated with plasma activation, after being treated with modifier soaking, with deionized water, steric stabilizer ultrasonic dispersion is carried out, and activated graphene dispersion is obtained;Silver-coated carbon particle dispersion is prepared, mixed with amino-modified graphene, deionized water, catalyst I after, adjust pH to 7~8, ultrasonic treatment is carried out, and activated conductive filler is obtained;Silane coupling agent hydrolysate pretreatment polyamide acid resin is added to the activated conductive filler, thixotropic agent, anti-settling agent and leveling agent are preheated to 35~40 DEG C, after high-speed shearing and three-roll mill grinding treatment, high shielding property graphene conductive ink is obtained.Thereby the graphene conductive ink obtained is strong, shielding property is high, and excellent in performance, suitable for spraying or screen printing process.

The patent provides a MXene / CC / PEDOT:PSS high-conductivity ink and a preparation method thereof, and further prepares a high-performance flexible micro-supercapacitor through a 3D printing technology.The application takes the conductive polymer PEDOT:PSS as a spacer between MXene nanosheets, effectively prevents the stacking of MXene nanosheets, and provides more conductive paths.The mutual interaction between CC and MXene through hydrogen bonds and ionic bonds promotes the interface bonding force between them, resulting in high yield stress and unique shear thinning behavior.The "soft inside and hard outside" structure of CC improves the mechanical properties of the electrode and provides a certain capacity.The micro-supercapacitor prepared by the 3D printing technology has excellent electrochemical performance due to the synergistic effect of the electrode material and the unique structure, and has great application potential in the field of flexible energy storage.

The present invention relates to the technical field of electronic components, and particularly relates to a manufacturing method of a transparent flexible thin-film electrode, comprising the following steps: (1) pre-treating the surface of a substrate; (2) coating a polyimide slurry on the surface of the pre-treated substrate and curing it to obtain a polyimide layer; (3) opening conductive grooves on the polyimide layer according to the design of an electrode pattern; (4) spraying a heat-conducting ink in the conductive grooves and curing it to obtain a heat-conducting protective layer; (5) filling a nano-silver conductive ink into the conductive grooves sprayed with the heat-conducting ink, and drying and curing; (6) removing the redundant nano-silver conductive ink outside the conductive grooves to obtain an electrode pattern; (7) coating an ultraviolet curing solution on the surface of the polyimide coating after obtaining the electrode pattern and curing it to obtain a transparent encapsulation layer. The electrode prepared by the present invention has a response speed of 2-5 s, a number of bending resistance times of more than 300,000 times, a temperature of 35-50 °C after heating for 72 h, good high-temperature performance, and greatly improved service life.

The application discloses a conductive layer plating film equipment based on plastic material, which comprises an antiskid pad, a supporting seat, a storage table, a plastic base material and an ITO plating film layer, the supporting seat is fixedly installed at the upper end of the antiskid pad, the storage table is fixedly installed at the upper end of the supporting seat, the plastic base material is placed at the upper end of the storage table, the ITO plating film layer is sprayed on the outer side of the plastic base material, a film layer surface conductive ink is sprayed on the outer side of the ITO plating film layer, a groove is formed in the inner side of the plastic base material, a copper sheet is fixedly installed in the inner side of the groove, a barrier layer conductive ink is sprayed on the outer side of the copper sheet, and protective glue is sprayed on the outer side of the barrier layer conductive ink. The conductive layer plating film equipment based on plastic material is based on plastic material with complex or curved surface modeling requirements, when realizing the functions of power heating or conduction, the silver paste on the ITO plating film layer and the reserved or assembled metal electrode are connected through the conductive ink or glue in the reserved gap of the overall structure, so that the stability of the plating film is improved.

The invention provides a seed treatment method based on a graphene composite coating and a far infrared drying method, and relates to the technical field of seed treatment. Comprising the following steps: taking carboxyl-modified graphene nanosheets, a natural polymer base material, a bioactive component and a bonding enhancer, preparing a graphene composite coating through ultrasonic dispersion, and coating seeds with the graphene composite coating on a fluidized bed to obtain coated seeds; a graphene far infrared heating film structure is prepared, the graphene far infrared heating film structure comprises a polyimide substrate layer, a graphene conductive ink printed circuit heating layer and a silica gel packaging layer, and the graphene far infrared heating film structure is used for drying the coated seeds in a far infrared gradient mode. The integrity rate of the coating layer reaches 99.5%, the graphene far-infrared heating film structure is combined and utilized to perform far-infrared gradient drying on the coated seeds, and the surface temperature standard deviation of the dried coated seeds is smaller than or equal to 1.5 DEG C.

The invention is suitable for the technical field of anisotropic conductive film manufacturing, and provides an anisotropic conductive film based on ink-jet printing and a preparation method thereof, and the method comprises the following steps: S1, preparing conductive ink which comprises conductive particles, a binder and a solvent; s2, printing the conductive ink to the surface of a base material through ink-jet printing equipment according to a preset pattern and a preset interval to form a conductive particle array; s3, carrying out curing treatment on the conductive particle array; and S4, laminating and covering a bonding layer on the cured conductive particle array to obtain the anisotropic conductive film, according to the invention, a conductive film manufacturing process with low cost, digitization and strong controllability can be realized, the electrical property stability and the connection repeatability of a product are improved, and the requirements of micro-spacing electronic packaging, high-definition display devices and the like on high-precision particle arrangement are met.

The present invention provides a highly sensitive carbon nanotube-based flexible humidity sensor and a method for preparing the same. A highly dispersed carbon nanotube conductive ink is impregnated onto a flexible non-woven fabric as a humidity-sensitive layer using a padding method, and nanofibers are sprayed onto the fabric using electrospinning technology as an encapsulation layer to prepare a highly sensitive carbon nanotube-based flexible humidity sensor. The carbon nanotube conductive ink used is uniformly dispersed by sodium heparin, and the presence of sodium heparin gives the sensor higher humidity sensitivity and biosafety. In addition, a viscose fiber non-woven fabric with a three-dimensional porous mesh structure is used as the flexible substrate, and a nanofiber layer is used as the encapsulation layer, both of which have good flexibility, hygroscopicity, breathability, and comfort. The sensor has the advantages of high sensitivity, fast response speed, and high biosafety, and has broad application prospects and market prospects in the fields of flexible sensing equipment, medical care, biosensing, agricultural environmental protection, and the like.

The invention relates to the technical field of flexible electronic devices and conductive composite materials, and discloses a carbon nanotube assisted liquid metal dispersion method and application thereof in conductive ink and a flexible sensor. The method comprises the following steps: firstly, dispersing gallium-indium alloy and carboxyl-modified multi-walled carbon nanotubes in water in a mass ratio of 2: 1 through probe type ultrasound and water bath ultrasound respectively, then mixing the gallium-indium alloy and the carboxyl-modified multi-walled carbon nanotubes, and repeating the ultrasound process, so that liquid metal droplets are uniformly coated with the carbon nanotubes to form an LM (at) CNT composite dispersion liquid; adjusting the pH value of the dispersion liquid to 10.5-11.0, mixing the dispersion liquid with natural rubber latex, and adding super absorbent resin to prepare the conductive ink suitable for direct writing type three-dimensional printing. Through DIW printing and curing, the maximum GF value of the obtained flexible strain sensor in a strain interval of 1%-300% reaches 28, and the flexible strain sensor has resistance self-repairing performance, can accurately respond to human body part movement, and is suitable for the fields of wearable equipment, human body movement monitoring and the like.

The present disclosure provides a conductive ink composition comprising silver nanoparticles, a binder and a solvent, and has good stringiness when subjected to texture test. The conductive ink composition has good operability and can be printed to produce wiring patterns.

This invention discloses a fabrication process and control method for a free-curvature bionic artificial muscle fan blade, belonging to the field of bionic artificial muscle fan blade technology. It involves mixing sodium alginate, a natural polymer, with an ionic liquid to prepare a biomass gel electro-actuated membrane with high output force density and high strength at room temperature. A biomass gel conductive ink, made by blending gallium indium tin alloy with sodium alginate powder, is used as the electrode film. The resulting artificial muscle fan blade exhibits high energy conversion efficiency, low starting voltage, fast response speed, and higher structural strength at room temperature. Finally, the fan-shaped electrode is divided into several regions, which can be independently powered to control the curvature effect. This invention provides a simple fabrication process and control method for a free-curvature bionic artificial muscle fan blade, with stable structure, rapid deformation, and strong controllability, offering new ideas for the research and application of artificial muscle devices.