199 results about "Conductive ink" patented technology

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.

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 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.

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 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 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 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 invention belongs to the technical field of advanced materials and glucose detection, and relates to a 2D-MOF and MXene composite material, a printing type enzyme-free glucose sensor as well as a preparation method and application of the printing type enzyme-free glucose sensor. The preparation method of the composite material comprises the following steps: carrying out amination modification treatment on the MXene material; the MXene material subjected to amination modification treatment, nickel salt, BPY, TCPP and PVP are added into a mixed solvent of ethyl alcohol and DMF to be evenly mixed, and then a solvothermal reaction is conducted. The composite material has high catalytic activity, excellent conductivity and good dispersity, can be firmly attached to a flexible substrate, is high in stability, and can realize rapid and repetitive detection of glucose. The material can be prepared into conductive ink with good rheological property, is suitable for a printing process, can be used for preparing a wearable enzyme-free glucose sensor with high sensitivity and interference resistance, and has large-scale low-cost production potential.

A method for configuring a sensor tag includes printing one or more antennas on a flexible substrate layer using conductive ink; depositing one or more sensors on the flexible substrate layer, wherein at least one of the one or more sensors is deposited in electrical contact with at least one of the one or more antennas; and applying a coating over the one or more sensors.

This invention relates to the field of flexible materials technology and discloses a method for fabricating a liquid metal composite sensor containing Ag microflakes using laser in-situ activation. The method includes ultrasonically treating liquid metal to obtain liquid metal particles, then thoroughly mixing these particles with a solution of the elastic polymer SEBS and silver microflakes to prepare conductive ink. This ink, combined with laser cutting and laser in-situ activation technology, is then used to fabricate a flexible strain sensor pattern. Finally, the sensor is fabricated through transfer packaging. This sensor, based on the self-healing properties of liquid metal and SEBS, combined with the conductivity of silver, forms a highly sensitive and stable composite material. Furthermore, the conductive network is optimized using laser scanning in-situ activation technology, overcoming the problems of complex fabrication processes and insufficient stability in existing flexible sensors. This flexible wearable sensor can be widely used in the field of human-computer interaction, real-time monitoring of finger bending, joint movements, and other actions, converting mechanical deformation into electrical signals for precise motion capture. This invention features a simple fabrication process, excellent performance, and system stability, and has broad application prospects.

A curable ink stack includes an insulating ink layer, a conductive ink layer disposed on at least a portion of the insulating ink layer, and a cover ink layer disposed on the conductive ink layer. The insulating ink layer includes a first surface resistivity and the conductive ink layer includes a second surface resistivity. The second surface resistivity is less than the first surface resistivity. The cover ink layer includes epoxy-based ink. When the curable ink stack is disposed and cured on the glass substrate to form a cured ink stack, the cured ink stack exhibits a total surface resistivity greater than or equal to 1.00 * 108 Omega.

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.

This invention belongs to the field of transparent conductive film technology, specifically relating to a flexible transparent conductive film with ordered silver nanowires and its preparation method. The preparation method includes the following steps: preparing AgNW conductive ink; coating a first layer of silver nanowires onto a substrate surface, and drying the resulting monolayer silver nanowire wet film; coating a second layer of silver nanowires onto the surface of the monolayer silver nanowire film along a coating direction perpendicular to the first coating; drying the resulting bilayer orthogonal silver nanowire wet film and then cold rolling it to obtain a flexible transparent conductive film with ordered silver nanowires. This flexible transparent conductive film with silver nanowires exhibits high light transmittance, low sheet resistance, and low surface roughness.

The application belongs to the field of photoelectric materials and devices, and discloses a method for preparing metal-doped graphene oxide conductive ink, which comprises the following steps: immersing a metal substrate into an aqueous solution of graphene oxide, and carrying out a redox reaction to obtain reduced graphene oxide ink loaded with metal oxide particles. The method realizes the preparation of reduced graphene oxide conductive ink loaded with metal oxide particles through in-situ spontaneous redox reaction of graphene oxide and the metal substrate. Compared with the traditional method for preparing metal-doped graphene ink, the method can realize in-situ low-temperature redox, avoids the use of organic solvents or ionic liquids, reduces the residual organic matter, and significantly improves the conductivity by in-situ embedding of metal oxide particles.

The invention discloses a ship-borne anti-corrosion and wave-absorbing integrated super-surface elastomer and further discloses a preparation method of the elastomer, and the preparation method comprises the following steps: S1, preparing an inner protection matrix by using an anti-corrosion filler, an antioxidant, polyether amine and isocyanate; s2, preparing conductive ink by using dielectric loss filler, magnetic loss filler, a photosensitive polymer, a photoinitiator, a reactive diluent and a dispersing agent, and coating the conductive ink on the surface of the inner protection substrate in a patterned manner to form a super-surface wave-absorbing layer; s3, preparing an outer hydrophobic layer outside the metasurface wave-absorbing layer to obtain a metasurface elastomer; and S4, one side of the inner protection base body of the super-surface elastomer is attached to the outer surface of the ship electronic device, and anti-corrosion and wave-absorbing integrated packaging is achieved. The super-surface elastomer has the functions of corrosion prevention and wave absorption, is suitable for packaging and electromagnetic protection of devices such as ship-borne communication nodes and high-frequency electronic modules, and can remarkably improve the reliability and prolong the service life of the devices in a complex marine environment.

A method for embedding an electronic device in a composite structure comprises: a) placing an electronic device on one or more prepreg layers of the composite structure; b) printing a trace of conductive ink on the prepreg layer—after the placement and printing steps, the electronic device and the trace come into contact with each other—; and c) simultaneously performing the steps of curing the composite structure, sintering the ink, and forming an electrical connection between the sintered ink and the electronic device.

The application provides an ink printing size detection device and method based on a semiconductor conductive ink, relates to the technical field of semiconductor manufacturing, and comprises a detection chamber. A detection platform is arranged in the detection chamber. A three-axis sliding table is symmetrically arranged on the upper surface of the detection platform. The three-axis sliding table is provided with a Z-axis sliding table. A first mounting plate is arranged at the front end of the Z-axis sliding table. A first industrial camera is fixedly arranged on the lower surface of the first mounting plate. A vacuum suction table is arranged below the first industrial camera. The vacuum suction table is fixedly connected with the upper surface of the detection platform. A control assembly is arranged in the detection chamber. The control assembly comprises a processor, a memory and a controller. The processor is electrically connected with the first industrial camera and the memory. The controller is electrically connected with the three-axis sliding table, the first industrial camera and the processor. In the application, the first industrial camera is used for automatically detecting the ink printing size, thereby replacing manual detection, improving the detection precision and the detection efficiency, and facilitating batch production of semiconductors.

The invention discloses Ag / Al composite ink with conductivity, excellent printability and electrochemical activity as well as a preparation method and application of the Ag / Al composite ink, and belongs to the technical field of printed electronic functional materials. The problem that existing conductive ink is inert metal and cannot directly participate in electrochemical reaction is solved. The preparation method comprises the following steps: preparing aluminum dispersion liquid; then mixing a resin binder, an organic alcohol ether solvent and a functional auxiliary agent to obtain an organic carrier; mixing the flake silver powder with an organic carrier to obtain a conductive silver substrate; and dropwise adding the aluminum dispersion liquid into a conductive silver substrate, and stirring to obtain the Ag / Al composite ink. The silver powder constructs a continuous three-dimensional conductive network, the aluminum powder serves as a discrete electrochemical activity center, and balance of electrochemical activity and conductivity is achieved. The ink disclosed by the invention is adaptive to air pressure extrusion type printing and silk-screen printing, and the asymmetric active electrode prepared by printing can be used for preparing an electrochemical device and has high sensitivity, quick response and excellent cycling stability.

The invention provides a printed circuit board and a manufacturing method thereof. The manufacturing method of the printed circuit board comprises the following steps: providing a polyimide, polyethylene glycol terephthalate or glass fiber combined epoxy resin substrate; forming a conductive ink layer on the substrate; a low resistance material layer is formed on the conductive ink layer. Particularly, the resistance of the low-resistance material layer is smaller than that of the conductive ink layer.

This utility model belongs to the field of electronic tag technology and discloses an RFID electronic tag with an anti-tamper structure. It includes a brittle base, an antenna layer on the surface of the brittle base, a tag chip connected to the antenna layer, and multiple breakpoints with a width of 0.01m on the antenna layer. A top cover layer is provided on the surface of the antenna layer, and an adhesive layer for attaching to an object is provided at the bottom of the brittle base. The bottom of the top cover layer is coated with a fine and continuous conductive ink line to form a grid-like detection circuit. In this utility model, the detection circuit is weakly coupled to the antenna in the antenna layer, forming a parasitic capacitance. This causes a significant shift in the antenna's resonant frequency, preventing the energy emitted by the reader at its operating frequency from being effectively received by the tag antenna. This results in a sharp decrease in the tag's reading distance, or even complete unreadable data, thus achieving the anti-tamper function.

The invention provides a carrying tray or carrier tape for electronic components and a regeneration method thereof, wherein the carrying tray or carrier tape can recover and reuse base material resources. This transport tray or carrier tape for electronic components is provided with: a base material layer which is a plastic sheet; a conductive ink layer which is provided on at least one surface of the base material layer; and an intermediate layer which is provided between the base material layer and the conductive ink layer and which is capable of removing the conductive ink layer in an alkaline solution. And the surface resistance value of one side of the conductive ink layer is 1 * 10 < 3 >-1 * 10 < 13 > omega / square.

The invention discloses a preparation method of high-purity monodisperse spherical nano-copper powder, nano-copper powder and application of the nano-copper powder. The preparation method comprises the following steps: mixing copper sulfate, aliphatic diamine of which the complexing stability constant logK is 9.0-11.0 and polyvinylpyrrolidone of which the molecular weight is 5000-50000 Da in deionized water to form a uniform dispersion liquid; after heating, slowly dropwise adding 80% hydrazine hydrate at a specific stirring rate for reduction reaction; and finally, separating, purifying and drying to obtain the nano copper powder. Through the synergistic effect of the specific complexing agent and the dispersing agent, under the high concentration of 0.5-0.7 mol / L, the copper ion reduction rate and crystal nucleus growth are precisely regulated and controlled, and the high-quality spherical nano-copper powder with the purity larger than or equal to 99.5%, the sphericity larger than or equal to 0.9 and the particle size distribution span value Span smaller than or equal to 0.5 is successfully prepared. The preparation process is simple, mild in condition and easy to industrially amplify. The obtained nano copper powder is regular in morphology and excellent in dispersity, and has wide application prospects in the fields of conductive slurry, conductive ink, catalysts, heat-conducting and wear-resistant composite materials and the like.

The invention relates to the technical field of graphene materials, and discloses a modified graphene material and a preparation method thereof.The preparation method comprises the steps that sodium lignin sulfonate is used for modifying graphene oxide through pi-pi stacking, and water-based stable dispersion liquid is prepared; saponified abietic acid is introduced, so that a abietic acid radical tricyclic hydrophobic skeleton is attached to the surface of graphene; compounding tung oil emulsion, performing free radical oxidation polymerization on alpha-eleostearic acid conjugated triene double bonds at the normal temperature of 15-35 DEG C to form a film, and covalently bonding graphene into an organic film-forming system through phenol-oxygen free radical coupling; zinc borate is added, zinc ions catalyze and solidify and promote generation of zinc abietate, and borate radicals and sodium lignin sulfonate hydroxyl form an inorganic borate cross-linked network; and adjusting the solid content and grinding to obtain a finished product. The prepared conductive ink is self-dried and cured at normal temperature, a cured coating has excellent water resistance and conductive stability, and the conductive ink is suitable for a heat-sensitive flexible base material.

The application belongs to the field of electronic materials, and provides a kind of mechanically wear-resistant liquid metal particle-based conductive ink and its preparation method, the conductive ink includes: liquid metal particles, hot melt polymer particles and polymer solution;The polymer solution includes organic solvent and functional additives, and the liquid metal particles and hot melt polymer particles are dispersed in the polymer solution, and the polymer particles are not dissolved in the polymer solution.The application also provides a preparation method for preparing mechanically wear-resistant flexible stretchable conductor from the conductive ink.The application adds hot melt polymer particles in the ink, since the hot melt polymer is dispersed in the ink rather than directly dissolved in the ink, during the hot pressing process, a local protective network will be formed between the hot melt polymer particles rather than a dense polymer film, which can effectively improve the mechanical wear resistance of the flexible stretchable conductor, and at the same time, the excellent conductivity and stretchability of the flexible stretchable conductor will not be sacrificed.

A fully-printed sensor chip for measuring prothrombin time of a blood sample. The sensor chip includes a pair of electrodes and a pair of contact pads, each electrically coupled to a different one of the electrodes, printed on the surface of the substrate using conductive ink materials. When a blood sample is placed on the sample chip in contact with both electrodes, an impedance of the blood sample is determined based on a measured impedance between the two contact pads. As the blood sample clots, the impedance value changes and the prothrombin time for the blood sample is determined based on a measurement time of a maximum impedance value. A resistive bridge printed on the substrate surface between the contact pads increases a baseline measurement for the sensor chip to a value within a range that is measurable by lower-cost measurement equipment.

A conductive ink, a preparation method and application thereof are provided and relate to the field of conductive ink technology. The conductive ink includes the following components in weight percentage, based on a total weight of the conductive ink being 100%: 1% to 85% of an organic conductive material, and 15% to 99% of a solvent. The solvent has a boiling point lower than or equal to 150° C. The conductive ink provided in the present application includes the organic conductive material and the solvent. Since the solvent having a boiling point lower than or equal to 150° C., the conductive ink of the present application not only dries quickly during coating and has high production efficiency, but also forms a transparent conductive film layer that is uniform, flat, and dense, and has good product quality.

A PIN-out circuit structure capable of preventing poor insulation and a membrane switch are disclosed, the PIN-out circuit structure comprises a rubber isolation layer, two sides of the rubber isolation layer are respectively provided with an upper conductive layer and a lower conductive layer, the upper conductive layer and the lower conductive layer are respectively arranged on the upper side and the lower side of the rubber isolation layer through an upper conductive ink layer and a lower conductive ink layer, and the upper conductive ink layer and the lower conductive ink layer are respectively arranged on the upper side and the lower side of the rubber isolation layer. And the end part of the lower conductive ink layer is arranged in an inward shrinkage manner so as to avoid a punching position. According to the PIN outlet circuit structure capable of preventing poor insulation and the membrane switch provided by the utility model, the end part of the lower conductive ink layer is arranged in an inward shrinkage manner so as to avoid a punching position, so that the problem of poor insulation of the circuit at the PIN outlet position caused by residual ink on the circuit due to punching of the lower conductive ink layer can be avoided.