1690results about "Electrically-conducting adhesives" patented technology

The invention belongs to the technical field of biomedical materials, and particularly relates to adipose-derived mesenchymal stem cell loaded conductive hydrogel and a preparation method and application thereof, the preparation method comprises the following steps: step S1, after hyaluronic acid is subjected to oxidation treatment, dopamine is grafted to oxidized hyaluronic acid, and oxidized hyaluronic acid-dopamine is obtained; step S2, carrying out amination treatment on gelatin to obtain aminated gelatin; s3, mixing the oxidized hyaluronic acid-dopamine with the aminated gelatin, and carrying out Schiff base crosslinking, so as to obtain hydrogel; and step S4, loading the adipose tissue-derived stromal cells by using the hydrogel. Dopamine is grafted on an oxidized hyaluronic acid macromolecular chain through amidation reaction, the hydrophilicity and the electrical property of the macromolecular chain are improved, a catechol structure is provided to provide possibility for iron ion coordination, the tissue adhesion, the injectability, the mechanical property and the electrical conductivity of the hydrogel are improved, and the hydrogel can be applied to the field of biomedical materials. After being applied to a spinal cord injury rat model, the functional recovery can be promoted.

The invention discloses injectable hydrogel with redox activity and electroactivity as well as a preparation method and application of the injectable hydrogel, and belongs to the technical field of medical materials. The preparation method comprises the following steps: reacting methacrylic anhydride and polysaccharide molecules in a solvent to prepare a double-bond functional polymer; the preparation method comprises the following steps: firstly, pre-polymerizing dopamine in a solvent, and then adding MOF (Metal Organic Framework) to carry out polymerization reaction, so as to prepare dopamine modified MOF; reacting the dopamine modified MOF, EDOT and ferric salt in a solvent, and collecting the precipitate to prepare a nano filler; the preparation method comprises the following steps: jointly dispersing the double-bond functional polymer, active polypeptide, a photoinitiator and nano filler into a solvent, and carrying out photocuring cross-linking. The preparation condition is mild, gel forming is rapid, the method is simple, the prepared hydrogel has injectable performance and conductive performance, catalytic activity of natural enzyme can be simulated, active oxygen removal can be achieved in the early stage of myocardial ischemia, electrical conduction of infarction parts can be enhanced, and effective recovery of cardiac functions can be achieved.

The invention discloses an acrylate conductive composite pressure-sensitive adhesive and a preparation method thereof. The acrylate conductive composite pressure-sensitive adhesive comprises a raw material A and a raw material B, wherein the raw material A comprises 5-15 parts of acrylate polymer; 0.10 to 1.00 parts of epoxy resin; 1.0 to 10.0 parts of aniline; 0.1 to 1.0 part of an initiator; 1-5 parts of conductive particles; and 0.010 to 0.100 part of an amine curing agent. The acrylate conductive composite pressure-sensitive adhesive disclosed by the invention has excellent conductivity and capacitance sensing performance, and shows excellent capacitance stability and relatively high sensitivity in a pressure cycle test; on the basis of containing the conductive filler, the pressure-sensitive adhesive still has better hardness, adhesion strength and tensile strength, and the conductive filler is well dispersed and combined in a pressure-sensitive adhesive system.

The invention relates to a high-thermal-conductivity epoxy resin conductive adhesive containing a composite conductive filler and a preparation method of the high-thermal-conductivity epoxy resin conductive adhesive. The high-thermal-conductivity epoxy resin conductive adhesive containing the composite conductive filler comprises 6-16% of graphene oxide modified epoxy resin, 0.6-3% of a curing agent, 0-1% of a curing accelerator, 2-7% of epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes, 3-7% of carbon fibers, 3-7% of nano silver powder, 40-70% of micron silver powder, 5.0-15.0% of a surface treating agent, 0.3-2.7% of a coupling agent, 0.5-1.5% of a dispersing agent, 0.1-0.3% of an antioxidant and 0.1-0.3% of a lubricant. 0.5% and the balance of a solvent. The graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes are utilized to improve the dispersion stability of the filler, the modified single-layer / multi-layer carbon nanotubes are adopted as a short-range conductive additive, the carbon fibers are adopted as a long-range conductive additive, and the graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes and the carbon fibers cooperate to improve the conductivity. The conductive adhesive disclosed by the invention is high in heat conductivity, low in volume resistivity and high in tensile strength and bending strength, and has a wide application prospect in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

The present invention discloses a low-temperature conductive adhesive, which is prepared by weight using raw materials including 70-80 parts of silver powder, 20-30 parts of resin matrix, 1-10 parts of curing agent, 0.1-0.5 parts of silane coupling agent, 0.1-0.5 parts of stabilizer, and 0.1-0.5 parts of metal salt. The present invention introduces an organic metal salt into the resin matrix to reduce the contact resistance of the colloid, and after wet heat aging, maintains a lower contact resistance increase rate. The present invention adopts a combination of epoxy resin, acrylate and modified epoxy acrylic resin, and the weight of epoxy resin and acrylate is less than or equal to the weight of modified epoxy acrylic resin, so that low-temperature curing can be achieved. The present invention can achieve 60-80 ° C, 20-40 min curing, and the conductive adhesive elongation at break obtained can reach more than 8%, and before and after wet heat aging, there is a more stable and relatively small contact resistance, which is particularly suitable for the electronic field with high requirements for contact resistance.

The invention provides a biofeedback type electrical stimulation regulation and control device based on multi-mode physiological signal monitoring and a control method, the regulation and control device comprises an electronic component layer, a circuit layer, a man-machine interaction part and an adhesion layer, physiological signal acquisition and electrical stimulation regulation technologies are utilized, and a multi-source biosensor and an intelligent processing module are integrated, so that the regulation and control of the biofeedback type electrical stimulation regulation and control device is realized. Dynamic monitoring and real-time analysis of physiological signals are achieved, self-adaptive adjustment of personalized parameters is conducted based on signal characteristics, and a non-invasive biological feedback regulation and control system is formed. Through integrated multi-mode detection and intelligent regulation and control functions, a non-invasive and convenient regulation and control means is provided for wearers with abnormal nerve or physiological states; a portable and comfortable attached structure is adopted, the device can be worn at the Neiguan point for a long time, physiological signal continuous monitoring and electrical stimulation closed-loop feedback adjustment are achieved, and the personalized health management requirement of a user is met.

The invention relates to the technical field of conductive glue, in particular to polyurethane modified silicone rubber, sprayable conductive glue and a preparation method thereof. The polyurethane modified silicone rubber is prepared from the following components in parts by weight: 50 to 150 parts of vinyl silicone oil, 20 to 50 parts of polyurethane powder and 5 to 15 parts of compatilizer, the sprayable conductive glue comprises the following components in parts by weight: 20-40 parts of conductive particles, 5-15 parts of hydrogen-containing silicone oil, 50-150 parts of polyurethane modified silicone rubber, 1-10 parts of a coupling agent, 1-5 parts of a catalyst, 1-2 parts of an inhibitor, 40-90 parts of a diluent and 1-2 parts of a defoaming agent, compared with traditional silicone rubber, the polyurethane modified silicone rubber provided by the invention is high in mechanical strength and not easy to tear, when the polyurethane modified silicone rubber provided by the invention is used for preparing sprayable conductive glue, a conductive layer formed by the conductive glue is excellent in conductivity, and meanwhile, the mechanical property is also remarkably improved.

The invention belongs to the technical field of conductive adhesives, and particularly relates to a salt-fog-resistant waterborne conductive adhesive and a preparation method thereof.The salt-fog-resistant waterborne conductive adhesive is mainly prepared from, by weight, 5-10 parts of salt-fog-resistant waterborne polyurethane; 5 to 10 parts of water-based tackifying resin; 30 to 50 parts of conductive silver powder; 10 to 20 parts of ethanol; 2-10 parts of an anti-hydrolysis agent; and 10-30 parts of deionized water. According to the salt-fog-resistant aqueous conductive adhesive, polyurethane resin with polytetrahydrofuran alcohol and polycaprolactone polyol as main structures is used as matrix resin, a system is endowed with excellent water resistance and salt-fog resistance, the salt-fog-resistant aqueous conductive adhesive shows outstanding hydrolysis-resistant stability after being cured, and the salt-fog-resistant aqueous conductive adhesive and the conductive silver powder have a synergistic effect, so that the anti-settling performance is effectively improved.

The invention discloses a negative electrode binder and a preparation method thereof, a negative electrode material, a negative electrode plate, and a battery, and belongs to the technical field of lithium ion batteries. The conductive binder of the invention is obtained by uniformly dispersing conductive polymer gel particles in a polythiophene-polystyrene sulfonic acid mixture, reacting, and obtaining; the conductive polymer gel particles are obtained by mixing a conductive polymer with a phytic acid solution, adding ammonium persulfate to mix, standing for reaction, and drying. The preparation method of the conductive binder of the invention is simple, suitable for large-scale production, and can be further mixed with silicon nanomaterials to prepare negative electrode slurry, simplifying the components and pulping process of the negative electrode slurry, and at the same time, phytic acid bridges the conductive polymer and thiophene substances to form a three-dimensional cross-linked network, thereby improving the mechanical properties of the conductive binder, solving the problem of poor mechanical strength of the existing binder and structural damage caused by volume shrinkage and expansion of the negative electrode material during charging and discharging, and improving the cycle performance and rate performance of the battery.

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.

The invention relates to the technical field of conductive composite materials, in particular to an electric continuous conductive adhesive film and a preparation method thereof.The electric continuous conductive adhesive film comprises a conductive functional layer and a resin film layer wrapping the conductive functional layer; conductive particles are arranged in the resin film layer, and the weight ratio of the conductive particles to the resin film layer is 1-15%. The preparation method comprises the steps that the average diameter of the conductive particles is determined according to the thickness of the adhesive film, and the average diameter of the conductive particles is larger than the thickness of the resin film; heating and melting the resin at a set melting temperature, adding the conductive particles into the molten resin, and stirring until the conductive particles and the resin are uniformly mixed to form a resin mixture; molding the cooled resin mixture into an adhesive film by adopting a hot melting method; and compounding the adhesive film with a conductive functional layer, and carrying out hot-pressing compounding and cooling section hardening to obtain the electrically continuous conductive adhesive film. The electrically continuous conductive adhesive film and the preparation method thereof aim at solving the problem that the surface conductivity of the conductive adhesive film after resin curing is relatively poor.

The application belongs to the technical field of conductive glue, and particularly relates to a conductive glue, a preparation method and application thereof, wherein the conductive glue is made of the following raw materials in parts by weight: 40-60 parts of synthetic acrylic resin, 5-15 parts of epoxy resin, 25-45 parts of conductive filler, 5-15 parts of latent curing aid, 80-120 parts of diluent and 5-8 parts of auxiliary agent. By adding the latent curing aid, the application can reduce the potential possibility of the reaction of the acrylic resin and the epoxy resin at room temperature, thereby improving the storage effect of the conductive glue, improving the overall performance of the electronic product and meeting different application scenarios with different requirements. The preparation method directly mixes the raw materials such as the acrylic resin, the epoxy resin, the conductive filler, the auxiliary agent, the diluent and the latent curing aid uniformly in the preparation process without the need of separation and storage, thereby reducing the production cost, simplifying the use process of the user, improving the production efficiency of the conductive glue and the product quality.

The invention discloses a self-power-generation stomach residence electronic capsule and application thereof, and belongs to the technical field of medical capsules, the self-power-generation stomach residence electronic capsule structurally comprises a capsule shell, and a self-power-generation stomach residence unit, a drug release unit and a circuit system which are arranged in the capsule shell; the self-generating stomach residence unit structure comprises an anode, a plurality of elastic support arms, a cathode and a fastener, and the fastener fixes the plurality of elastic support arms between the anode and the cathode; the anode and the cathode are subjected to primary battery reaction in a gastric juice environment to generate power; the drug release unit is detachably connected with the self-generating gastric residence unit, the drug release unit comprises a drug cabin and a propelling module, the propelling module comprises an electrolyte, an isolating membrane and a propellant, the isolating membrane plays a role in isolating the electrolyte and the propellant and can be dissolved by the electrolyte under the condition that voltage is applied, and the drug cabin is connected with the drug cabin. After the electrolyte is in contact with the propellant, pushing force is generated to release the medicine in the medicine cabin.

The invention provides an epoxy resin packaging bonding material with high bonding stability and a preparation method thereof. The packaging bonding material is prepared from the following raw material components: 8 to 18 percent of graphene oxide modified epoxy resin, 0.8 to 4.0 percent of a curing agent, 0 to 1 percent of a curing accelerator, 0.4 to 2.0 percent of a silane coupling agent, 2 to 7 percent of nano carbon black, 2 to 7 percent of carbon fiber, 40 to 60 percent of flaky silver powder, 4 to 8 percent of spherical silver powder, 4.4 to 13.6 percent of a surface treating agent, 4 to 6 percent of a reactive diluent, 0.5 to 1.5 percent of a toughening agent, 0.5 to 1.5 percent of a dispersing agent, 0.1 to 0.5 percent of a lubricating agent and the balance of a non-reactive diluent. Graphene oxide is utilized to modify epoxy resin, the dispersion stability of the filler is improved, modified carbon black is adopted as a short-range conductive additive, carbon fibers are adopted as a long-range conductive additive, the modified carbon black and the carbon fibers synergistically improve the conductivity, and the reinforcing effect is achieved. The packaging bonding material disclosed by the invention has the characteristics of low volume resistivity, high tensile strength and bending strength, high bonding stability and the like, and has wide application prospects in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

The invention belongs to the technical field of conductive microsphere preparation, and particularly relates to a surface-roughened nickel-plated conductive microsphere and a preparation method and application thereof. The preparation method comprises the following steps: carrying out pretreatment to enable the surfaces of the polymer microspheres to contain nickel ions, reducing the nickel ions into nickel nanoparticles, activating the microspheres and carrying out chemical plating. According to the invention, the specific surface area of the conductive microspheres is increased by reducing the nickel nanoparticles on the surfaces of the microspheres, a large amount of impurities cannot be generated among the microspheres, and adhesion among the microspheres can be effectively prevented. According to the prepared conductive microspheres, the plating layer and the polystyrene microspheres are firmly combined, and the risk that the conductivity is reduced due to the fact that the surface of the plating layer falls off is reduced. The preparation method is safe, environment-friendly, simple, convenient and suitable for industrial production requirements.

The application provides a kind of fast curing acrylic glue and application, the fast curing acrylic glue is prepared from the following components according to weight parts: butyl nitrile rubber of terminal methacrylate is 13-17 parts;Polyurethane acrylate is 5-8 parts;Monofunctional acrylate monomer is 14-20 parts;Two functionality acrylate monomer is 7-13 parts;Three functionality acrylate monomer is 1-3 parts;Peroxide is 0.5-1.5 parts;Polymerization inhibitor is 0.01-0.04 parts;Coupling agent is 0.5-0.7 parts.The acrylic glue provided by the application has the advantages of fast curing, low volume resistivity after adding silver powder curing, good bonding strength, moderate elastic modulus, and can be used for photovoltaic tile conductive silver glue.

The invention discloses application of conductive hydrogel combined with electrical stimulation in treatment of diabetic foot ulcer caused by neuropathy, and belongs to the field of biological medicine. The conductive hydrogel is obtained by mixing chitosan, polyvinyl alcohol, MXene and gelatin; the chitosan is catechol group modified chitosan, the MXene is polyphenol and Mg ion modified MXene, the gelatin is phenylboronic acid modified gelatin, the electrical stimulation condition is 100 mV cm <-1 >, and the diabetic foot ulcer comprises diabetic foot ulcer caused by neuropathy. Experiments prove that the prepared conductive hydrogel can promote cell migration in combination with electrical stimulation, wound healing of the diabetic foot ulcer can be accelerated, functional repair can be achieved, and a new thought is provided for clinical treatment of the diabetic foot ulcer caused by neuropathy.

The invention discloses a kind of energized anti-viscosity tape and its preparation method and application, belonging to the technical field of UV tape processing for battery, and the preparation method comprises the following steps: acrylate pressure-sensitive adhesive, UV prepolymer, composite conductive hydrogel, curing agent, photoinitiator, solvent, leveling agent are mixed, stirred, and conductive glue is obtained; the conductive glue is coated on the upper and lower surfaces of aluminum foil substrate, dried at 80-100°C for 5-6min, and conductive adhesive layer is obtained, and release film is attached to the upper and lower surfaces of conductive adhesive layer to obtain energized anti-viscosity tape. The synthesized porous carbon has high porosity, which promotes manganese-doped nano zinc sulfide to emit light to initiate polymerization, cross-linking and curing of conductive adhesive layer, so that conductive adhesive layer loses viscosity; nano silver particles are formed on the surface of zinc oxide whisker loaded with porous carbon, the pore structure of porous carbon is refined, and the heat dissipation performance of energized anti-viscosity tape is improved.

The invention provides a conductive adhesive and a preparation method thereof, a negative plate and a battery, and belongs to the technical field of batteries, the structural formula of the conductive adhesive is as shown in formula (1), and m: n = (1-4): 1. The conductive adhesive provided by the embodiment of the invention can give consideration to good adhesive performance and conductive performance, and by applying the conductive adhesive to the battery, electrochemical reaction power of the battery can be improved and the cruising ability of the battery can be ensured on the basis of not increasing the content of the conductive agent and not influencing the capacity of the battery.

The invention relates to the technical field of functional composite probe material preparation, in particular to a three-core spinning technology-based bio-compatible gel probe and a preparation method thereof, and the three-core spinning technology-based bio-compatible gel probe comprises a composite skin layer and three functional core layers; the composite skin layer is composed of a sodium alginate-polydopamine-chitosan grafted copolymer in a mass ratio of 2: 1: 0.5, and contains # imgabs 0 # chondroitin sulfate and # imgabs 1 # polyoxyethylene; the three core layers are respectively a carbon nanotube-polyaniline # imgabs2 # hybrid material, a graphene-polypyrrole-boron nitride hybrid material and a # imgabs3 # polythiophene-hydroxyapatite hybrid material, and the mass ratio of the carbon material to the conductive polymer to the newly added nano material in each core layer is 1: 2: 0.3; and the diameter ratio of the skin layer to the three core layers is 1: 0.28: 0.22: 0.17. According to the invention, multichannel signal transmission is realized, the impedance is reduced by the hybrid material, and the conductivity is improved; the composite skin layer is matched with soft tissue mechanical properties, and interface bonding is stable; and the biocompatible component reduces inflammation, is suitable for acquiring nerve electrophysiological signals, and is easy for large-scale production.

The invention discloses an extracellular matrix-imitated anti-inflammatory nerve repair-promoting conductive hydrogel as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The preparation method of the conductive hydrogel comprises the following steps: preparing an MXene nanosheet dispersion liquid, and sequentially adding polyphenol and magnesium ions into the MXene nanosheet dispersion liquid to obtain a modified nanosheet solution; mixing the modified chitosan with polyvinyl alcohol to obtain a solution A; mixing and reacting the modified nanosheet solution with phenylboronic acid modified gelatin to obtain a solution B; mixing the solution A and the solution B for reaction, refrigerating at low temperature, and unfreezing to obtain the conductive hydrogel. The hydrogel prepared by the invention has excellent conductivity, and the obtained conductive hydrogel has the functions of resisting inflammation and promoting nerve repair. The bionics method not only improves the diversity and functionality of biological materials, but also provides new possibility for future tissue engineering and regenerative medicine.

The present invention relates to a curable and debondable two-part thermally conductive adhesive composition comprising a first part comprising an epoxy resin; an electrolyte; and a thermally conductive filler; and a second part comprising a curing agent; and a thermally conductive filler, wherein the composition further comprises an electrically conductive filler. The composition according to the present invention can be used in battery modules of electric vehicles. And the composition according to the present invention facilitates faster repair and recycling of battery modules of electric vehicles.

The invention discloses a high-durability organosilicon conductive adhesive and a preparation method thereof, and relates to the technical field of adhesives, the high-durability organosilicon conductive adhesive comprises the following specific components: an organosilicon matrix, a conductive filler, a curing system, an anti-aging auxiliary agent and a tackifier; the additive specifically comprises a mesoscopic phase orientation agent, a self-repairing synergistic system, a nanophase interface enhancer and a nano barrier layer; the material is prepared based on the materials. According to the high-durability organic silicon conductive adhesive and the preparation method thereof, the dispersion mode of the conductive filler is optimized, a conductive path is regulated and controlled by adopting the mesoscopic phase orientation agent, and the nano barrier layer is introduced, so that the oxidation and migration of the filler are effectively reduced, and the conductive stability is improved. In addition, through the composite design of the anti-aging additive and the self-repairing synergistic system, the material keeps excellent adhesive property and conductivity in high-temperature, damp and hot and ultraviolet environments.

The invention discloses a graphene conductive adhesive and a preparation method thereof, and relates to the technical field of adhesives. When the graphene conductive adhesive is prepared, polyethylene glycol diglycidyl ether and an ultraviolet absorbent react to prepare a functionalized epoxy monomer; the preparation method comprises the following steps: polymerizing a dihydroxy diphenyl phosphorus-containing monomer and phenyl dichlorosilane, and coating graphene with the polymerized dihydroxy diphenyl phosphorus-containing monomer and phenyl dichlorosilane to prepare pre-modified graphene; the pre-modified graphene and allyl glycidyl ether are subjected to a reaction, and modified graphene is prepared; carrying out polymerization growth on 5, 6-dihydroxyindole and 6-aminomethylindole on the pre-modified cellulose to prepare modified cellulose; and uniformly mixing epoxy resin, a functionalized epoxy monomer, the modified graphene, the modified cellulose, isophorone diamine and acetone to prepare the graphene conductive adhesive. The graphene conductive adhesive prepared by the invention has excellent anti-aging, flame-retardant, conductive and adhesive properties and mechanical properties.

The invention discloses a high-bonding-strength conductive adhesive and a preparation method and application thereof.The preparation method comprises the following steps that S1, epoxy resin E51 is placed in a three-neck flask, acetone is added, stirring is conducted till the epoxy resin E51 is completely dissolved, and ethidene diamine is slowly dropwise added; s2, under the protection of nitrogen, heating to 70-80 DEG C, adding a catalyst triphenylphosphine, carrying out a constant-temperature reaction, after the reaction is completed, cooling to 35-45 DEG C, adding deionized water, and stirring; s3, acetone and unreacted ethylenediamine are removed, then deionized water is used for washing, an obtained product is placed in a vacuum drying oven to be dried, and amino modified epoxy resin of faint yellow viscous liquid is obtained; s4, mixing the amino modified epoxy resin with an anhydride curing agent, a conductive filler, a diluent and a coupling agent; and S5, fully stirring the mixture, carrying out vacuum defoaming, and uniformly stirring to obtain the conductive adhesive. According to the invention, the shearing strength of the chip and the copper bracket can be improved to more than 30MPa.

The invention relates to the technical field of nerve probes, and provides a four-mode integrated nerve probe and a preparation method thereof. The four-mode integrated nerve probe provided by the invention comprises a flexible substrate, an electric signal recording module, an ultrasonic stimulation module, a light stimulation module and a microfluidic channel. The electric signal recording module is used for recording electroneurographic signals, the ultrasonic stimulation module is used for ultrasonic stimulation, the optical stimulation module is used for optical stimulation and signal recording, and the microfluidic channel is filled with drugs through a microfluidic channel control port in the probe body and releases the drugs through a microfluidic channel outlet in the needle tip. According to the four-mode integrated nerve probe provided by the invention, multiple functions are integrated into one probe, so that comprehensive detection and regulation of a nervous system are realized, and the technical problems that a traditional nerve probe is single in function, inflammation is caused by a rigid material and multi-mode integration is insufficient are solved.

The invention discloses a high-performance conductive adhesive doped with conductive nanoparticles, and belongs to the technical field of conductive adhesives. The high-performance conductive adhesive provided by the invention is prepared from the following raw materials in parts by weight: 50 to 100 parts of vinyl liquid silicone rubber, 100 to 400 parts of modified silver coated copper powder, 1 to 10 parts of nano silver powder I, 1 to 10 parts of epoxy silane modified prepolymer, 3 to 30 parts of hydrogen-containing silicone oil, 0.1 to 5 parts of platinum catalyst and 0.05 to 1 part of inhibitor. The silver-coated copper powder and the epoxy silane are modified, so that the conductivity and the binding power of the conductive adhesive are greatly improved, and the epoxy silane modified prepolymer can form strong covalent bond combination with the surface of an adhered object through a high-density epoxy group of the epoxy silane modified prepolymer; the nano-silver bulges on the surface of the modified silver coated copper powder increase the effective contact area and the number of contact points among the conductive filler particles, so that the conductive adhesive has the characteristics of high conductivity, low resistance, high adhesive strength and strong toughness.

The invention discloses a three-dimensional conductive network carboxymethyl cellulose composite binder and a preparation method thereof, and belongs to the technical field of lithium ion batteries, the three-dimensional conductive network carboxymethyl cellulose composite binder is prepared by grafting carboxymethyl cellulose with an acrylamide monomer and a pyrenyl monomer and then compounding with a conductive material. An acrylamide monomer and a pyrenyl monomer copolymerized long chain are grafted on a main chain of carboxymethyl cellulose, pyrenyl in a double-site pyrenyl monomer and a conjugated structure of a conductive material can attract each other through pi-pi accumulation, and the solubility of the pyrenyl monomer is improved by an alkenyl-terminated long carbon chain; a chemical cross-linked network structure can be formed between side chains through double sites, an amide group and carboxyl on carboxymethyl cellulose can attract a silicon negative electrode through hydrogen bonds, the cohesiveness is improved, the capacity of coping with the volume expansion problem of silicon particles is improved through a three-dimensional conductive network structure, and the cycle performance of the battery is remarkably improved.

The invention relates to a binder, an electrode material and a battery. The binder comprises the following preparation raw materials: a temperature-sensitive polymer and a conductive agent, the temperature-sensitive polymer comprises at least one of polyalkyl pyrrole, polyalkyl thiophene, polymethyl methacrylate, ethylene-vinyl acetate copolymer, polypropylene or polyimide. The structure and properties of the temperature-sensitive polymer can be changed when the temperature rises, so that the conductivity, the adhesive property and the mechanical strength of the material are adjusted, the adhesive can automatically insulate reaction in a battery cell and prevent thermal runaway, and the adhesive is good in stability at high temperature, does not decompose or degrade to release toxic gas, and is safe and reliable. The safety performance of the product is greatly improved; by combining with the conductive agent, a network structure with strong adhesive force, good conductivity and high heat conduction efficiency can be formed, and the obtained adhesive has good adhesive force and conductivity at room temperature and excellent insulativity and safety performance at high temperature.

The invention relates to a conductive adhesive composition and a conductive article. In particular, the present invention provides a conductive adhesive composition. The present invention relates to a pressure sensitive adhesive composition comprising: a pressure sensitive adhesive matrix comprising at least one non-linear block copolymer comprising an aromatic terminal block and an aliphatic elastomer block; at least one hydrocarbon-based tackifying resin; at least one aromatic reinforced resin; and conductive particles dispersed within the matrix. In some cases, the composition further comprises: an adhesion promoter comprising an alkylalkoxysilane, an alkenylalkoxysilane, an alkylphosphonic acid, or an alkylcarboxylic acid; and optionally, a non-functionalized dipodal alkoxysilane, and a method for preparing the same. When the adhesion promoter comprises an alkyl alkoxysilane or an alkenyl alkoxysilane, a non-functionalized dipodal alkoxysilane is present. In other cases, the composition also includes an adhesion promoter comprising an organic molecule selected from the group consisting of organic compounds capable of forming a bond with the surface of the metal oxide. Also provided is a conductive article comprising a substrate and a conductive adhesive disposed on the substrate.