227 results about "Silver nanowires" patented technology

The invention belongs to the technical field of folding screens, and discloses an optical conductive film for a folding screen and a preparation method thereof.The optical conductive film for the folding screen comprises a composite base material, an interface transition layer, a gradient refractive index optical adjustment layer, a hybrid conductive layer and a scratch-resistant wear-resistant layer which are sequentially stacked from bottom to top; the composite base material is a blending modification layer of polyimide and transparent polyamide, the hybrid conductive layer is formed by compounding silver nanowires, a graphene sheet layer and PEDOT: PSS according to a preset proportion, and the refractive index of the gradient refractive index optical adjustment layer is gradually reduced in the direction away from the composite base material. And the difference value between the refractive index of the gradient refractive index optical adjustment layer and the refractive index of the hybrid conductive layer is not greater than 0.05. The mechanical stability, the light transmission efficiency, the conductive stability, the scratch resistance and the wear resistance of the film are improved, the performance is stable after folding circulation, the use requirements of a folding screen are met, and application in different scenes can be met.

The invention relates to the technical field of new material detection, in particular to a touch screen production fault detection method based on data feedback, which comprises the following steps of: arranging a transmission spectrum detection device on a flexible touch screen roll-to-roll production line, and continuously monitoring a plurality of layers of films by adopting a U-shaped light path structure to obtain multi-wavelength transmission spectrum data; based on an optical absorption model of each thin film layer, chromatography decoupling operation is carried out on the multi-wavelength transmission spectrum data, and a target spectrum is separated; according to the film temperature monitored in real time, combining a preset material temperature optical constant database and setting a reference light path to carry out temperature compensation and baseline correction on the target spectrum; establishing a silver nanowire agglomeration spectrum model, performing second derivative calculation on the target spectrum after baseline correction, identifying spectrum characteristic peaks, and evaluating the agglomeration degree of the silver nanowires; and judging the degradation defect of the conductive network based on the agglomeration degree of the silver nanowires to obtain a defect detection result, and adjusting process parameters.

Concentrated dispersions of silver nanowires are used to prepare qualitatively distinct silver structures with a range of properties. The concentrated dispersions can have a high weight percent of silver nanowires and can be formulated to be flowable liquids or non-flowing pastes. The concentrated dispersions can be stable with no visible settling over the course of a week, can have non-Newtonian rheology, and can be diluted to a desired weight percent of silver nanowires without detrimental effects on the uniformity of the dispersions. The concentrated dispersions can be formulated with or without polymers or pre-polymer components. The concentrated dispersions can be formulated with silver salts to adjust dispersion of the silver nanowires and to improve electrical conductivity of cured silver structures formed from the dispersions. Methods for forming the concentrated dispersions are described as are methods to form silver structures from the dispersions.

The invention discloses a TPU film for robot electronic skin and a preparation method of the TPU film, and relates to the technical field of flexible electronic materials, the film takes TPU introduced with Diels-Alder dynamic reversible bonds as a matrix, a conductive filler is formed by dopamine-modified silver nanowires and MXene, the concentration of the conductive filler is in continuous or quasi-continuous gradient decrease, and the conductive filler is a conductive filler formed by silver nanowires and MXene. An integrated network with self-repairing and environmental stability is formed and is used as an electrode; phase change microcapsules and triboelectric nanofibers are compounded in a low-conductivity contact area to form an intelligent response layer which is self-adaptive in sensing threshold and capable of generating power by friction. Through one-step multi-nozzle electrostatic spinning forming, the problem that self-repairing, signal stability, environmental adaptability and energy independence in electronic skin are difficult to consider at the same time is solved.

The invention belongs to the technical field of substance detection, and particularly provides application of a chiral Ag / Bi6S2O15NWs composite film with SERS (Surface Enhanced Raman Scattering) activity in detection of ergothioneine. According to the invention, the silver nanowires are assembled into the thin film by using a Langmuir-Blodgett (LB) technology, and a simpler detection method based on SERS (Surface Enhanced Raman Scattering) is developed. The stability and SERS (Surface Enhanced Raman Scattering) performance of the chiral film are further improved by utilizing the coating of the bismuth-based nanowires (Bi6S2O15NWs). The SERS substrate is used for detecting natural L-amino acid EGT with antioxidant and anti-inflammatory effects, and the detection limit of the SERS substrate is 0.248 mu g / mL. The method provides a novel, efficient and sensitive method for detecting EGT in cosmetics, and supports product development and quality control.

The invention discloses a bacterial cellulose / silver nanowire / MXene composite conductive film and a preparation method thereof, and relates to the technical field of flexible conductive materials. The composite film comprises a bacterial cellulose substrate, an MXene conductive layer and a silver nanowire conductive network layer. The preparation method comprises the following steps: S1, preparing bacterial cellulose dispersion liquid; s2, preparation of an MXene dispersion liquid; s3, preparing a silver nanowire dispersion liquid; and S4, preparing the composite film. The composite film with a Janus structure is prepared through a vacuum-assisted layer-by-layer filtering process, and the composite film has high mechanical performance, low square resistance, excellent electromagnetic interference shielding effectiveness, rapid Joule heating performance and excellent environmental stability and mechanical durability. The problem that an existing flexible electromagnetic shielding material is difficult to consider ultrathin performance, high flexibility, strong mechanical performance and multifunctional integration is solved, and the flexible electromagnetic shielding material has wide application prospects in the fields of electromagnetic shielding, flexible electronic devices, wearable heaters and the like.

The application relates to a composite ultrathin full-transparent intelligent intermediate connecting layer, which comprises, from top to bottom, a first composite electrode, a photonic management composite tunneling layer and a second composite electrode; the first composite electrode is a grid-shaped transparent conductive film formed by reducing graphene oxide and silver nanowires, wherein the diameter of the silver nanowires is 20-40 nm, the length is 15-40 mu m, and the mass ratio of the reducing graphene oxide to the silver nanowires is 1:3 to 1:6; the photonic management composite tunneling layer is a zinc oxide matrix embedded with perovskite quantum dots; and the second composite electrode is an intelligent response electrode formed by combining aluminum-doped zinc oxide and vanadium dioxide; through accurate regulation of the material and structure, the application realizes >88% light transmittance and <35 Omega / sq square resistance, and simultaneously has the functions of photonic down-conversion and intelligent thermal management, thereby significantly improving the performance and stability of a stacked battery.

The application relates to the technical field of oil-water separation membranes, and discloses an oil-water separation membrane based on silver nanowires, a preparation method and application, the oil-water separation membrane comprises a modified layer and nanocellulose formed on the surface of a base film; the modified layer is a structure obtained by depositing polydopamine on the surface of silver nanowires. The silver nanowires (AgNWs) are modified by polydopamine, polydopamine particles are deposited on the surface of the silver nanowires, the composite film has micro / nano rough structures, the composite film is endowed with hydrophilic / underwater superoleophobic wetting performance, and therefore the anti-pollution performance of the PDA / AgNWs / CNF composite film is improved.

Concentrated dispersions of silver nanowires are used to produce qualitatively distinct silver structures with various properties. The concentrated dispersions may contain a high weight percent of silver nanowires and can be formulated to be a fluid liquid or a non-fluid paste. The concentrated dispersions may be stable for up to a week without visible sedimentation, may have non-Newtonian rheology, and can be diluted to a desired weight percent of silver nanowires without adversely affecting the uniformity of the dispersion. The concentrated dispersions may be formulated with or without polymer or prepolymer components. The concentrated dispersions may be formulated with silver salts to adjust the dispersion of silver nanowires and to improve the conductivity of the hardened silver structures formed from the dispersions. Methods for forming concentrated dispersions are described as methods for forming silver structures from dispersions.

The invention discloses a self-repairing radio frequency induction washing label thermal transfer ribbon based on a silver nanowire / polyurethane microcapsule composite structure, the thermal transfer ribbon is composed of a base film, a back coating layer and a thermal transfer printing layer, the back coating layer and the thermal transfer printing layer are respectively coated on two sides of the base film, and the thermal transfer printing layer is a gradient conductive-self-repairing ink layer. The composite material is mainly prepared from silver nanowires (the diameter is 25-30 nm, the length-diameter ratio is 500-800, and the resistivity is 1.5-2.0 * 10 omega.m) coated with polydopamine, polyurethane microcapsules, an epoxy acrylate prepolymer, carbon black and the like according to a specific proportion, wherein the silver nanowires (the diameter is 25-30 nm, the length-diameter ratio is 500-800, and the resistivity is 1.5-2.0 * 10 omega.m). Through the synergistic enhancement effect of the silver nanowires and the polyurethane microcapsules, the problems that a traditional thermal transfer ribbon is prone to being blurred and a conductive network is fractured during printing under repeated bending are solved, after the ink layer is bent for 1000 times, a printed pattern can still rapidly recover the initial integrity, high conductivity and environmental adaptability are achieved, and the thermal transfer ribbon can be widely applied to the field of thermal transfer printing. The method is suitable for flexible electronic identification systems of intelligent textiles and the like, and has good popularization and application values.

The application relates to the field of plastic master batches, and provides a composite nano-silver-graphene antibacterial plastic master batch and a preparation method thereof; the master batch is composed of surface-modified silver / graphene composite fillers, a polypropylene matrix resin, maleic anhydride grafted polypropylene, polyvinylpyrrolidone and SEBS thermoplastic elastomer. The silver / graphene composite fillers are in-situ grown on the surface of doped graphene in the form of silver nanowires, and are modified by 3-aminopropyl triethoxysilane coupling agent to improve the interface compatibility. The components are blended and dispersed through a double-screw extrusion processing technology, and finally, the functional master batch with excellent mechanical properties and broad-spectrum antibacterial properties is obtained. The application solves the problems of poor antibacterial property and weak mechanical property of the existing plastic, and has good processing adaptability and application popularization potential.

The application discloses a kind of non-contact sensing-actuating composite material and its preparation method, the method comprises: the shape memory fiber film is pre-stretched to produce deformation after cooling and is fixed to obtain sensing-actuating layer;Electrode is prepared on the partial area of the upper surface of sensing-actuating layer;Sensing-actuating layer is laminated on the polydimethylsiloxane film that is not completely cured, and it is completely cured by standing, and the face of sensing-actuating layer preparation electrode faces polydimethylsiloxane film;Silver nanowire dispersion liquid is coated on the face of sensing-actuating layer not prepared electrode, and dried.The composite material of the application has nanoscale multilayer network structure, based on "dielectric polarization-electric heating conversion-thermal response actuation" triple effect, self-awareness and actuating are fused, complete and accurate logical relationship is established with three-dimensional movement and triggers material to carry out flexible actuating, realizes non-contact "sensing-actuating" integration.

The application relates to the technical field of conductive silver paste, and discloses a low-resistance polymer conductive silver paste composition and a preparation method thereof, which comprises the following raw materials in parts by mass: polymer resin 40-50 parts, nano silver powder 10-15 parts, composite silver nanowire 3-5 parts, composite layered material 5-8 parts, aromatic polyisocyanate 3-5 parts, butyl citrate 2-4 parts and ethylene glycol 6-10 parts. The contact area of the composite silver nanowire and the silver paste composition substrate is large, so that the modified silver nanowire is uniformly dispersed in the silver paste composition, the conductive performance is improved, and the system stability is improved; the composite layered material has high barrier performance to oxygen and water molecules, further inhibits the oxidation of the silver paste composition, and improves the conductive performance and the system stability of the silver paste composition.

The invention relates to the field of flexible electronic materials and devices, in particular to a silver nanowire and a preparation method thereof, and a silver nanowire flexible conductive film and a preparation method thereof.The method comprises the steps that firstly, a flexible chain segment with excellent compatibility with the silver nanowire is selected and modified on the surface of the silver nanowire in a chemical grafting mode; the tensile toughness and flexibility of the nano silver wires are effectively improved, so that the nano silver wires can be moderately deformed without being broken when being stressed; according to the method, the flexible chain segment and the silver nanowire are combined, hot pressing process parameters are optimized, a low-temperature, low-pressure and gradient temperature rising mode is adopted, on the premise that the flexible chain segment and the silver nanowire structure are prevented from being damaged, close contact between the silver nanowires is achieved, the structural stability of a conductive network is enhanced, and the binding force between the silver nanowires and the flexible substrate is improved. The prepared silver nanowire conductive film has excellent mechanical tolerance and conductive stability, and can be widely applied to the field of flexible electronic devices.

The application relates to a surface enhanced Raman detection technology, in particular to a spherical composite SERS substrate and a preparation method and application thereof. The method comprises the following steps: adopting a micro flow injection pump to drop a solution containing silver nanowires and gold nanorods into liquid nitrogen, and then performing freeze drying; wherein, a gun head of the micro flow injection pump is a hydrophobic gun head; the concentration of the silver nanowires in the solution containing the silver nanowires and the gold nanorods is 15-40 mg / mL. The spherical composite SERS substrate prepared by the method has a spherical structure formed by silver nanowires and metal nanorods, the spherical skeleton structure is formed by interweaving silver nanowires into a net, and the metal nanorods are loaded on the silver nanowires, and the spherical composite SERS substrate can realize detection of rhodamine 6G without introducing a modifier.

This invention discloses a hydrophobic electrode made of polyaniline / carbon nanotubes / silver nanowires, its preparation process, and its application. The hydrophobic electrode is prepared from polyaniline, carbon nanotubes, and silver nanowires. In this hydrophobic electrode, silver nanowires are uniformly dispersed in the material, forming a relatively complete conductive network; carbon nanotubes are wound around the surface of polyaniline, forming micro- and nano-scale protrusions, while also being distributed throughout the conductive network of silver nanowires and in contact with them; carbon nanotubes are wrapped and attached to the surface of polyaniline, dispersed throughout the composite material. This invention uses a mixture of polyaniline and carbon nanotubes before incorporating silver nanowires. To enhance hydrophobicity, the composite material undergoes high-temperature heating treatment, resulting in a low surface energy and a micro- and nano-rough structure. This invention involves fewer chemical reagents, has a simple preparation process, good safety, short preparation time, does not produce toxic or polluting gases, and possesses certain anti-corrosion properties.

The invention discloses a multilayer flexible electromagnetic shielding composite film and a preparation method thereof.The preparation method comprises the steps that firstly, a complex with zinc ions as a metal center and pyrazole as an organic ligand is synthesized and then mixed with metal salt, and after high-temperature pyrolysis, a FeNi-C precursor is obtained; the precursor is blended with sodium alginate and a PEDOT: PSS aqueous solution, and an SPCX composite film is prepared; the preparation method comprises the following steps: preparing silver nanowires through a polyol method, and mixing the silver nanowires with sodium alginate and PEDOT: PSS to prepare an SPAg composite film; carrying out softening treatment on the surface of the SPCX composite film by adopting ethylenediamine tetraacetic acid; and then the composite film is slightly pressed to be combined with the SPAg composite film in a chemical cross-linking mode, and the multi-layer flexible electromagnetic shielding composite film is formed. A continuous, uniform and efficient conductive network is constructed in the composite material. In addition, by changing the metal salt solution used in the post-crosslinking process, the mechanical property and the electromagnetic shielding property of the composite film can be further adjusted.

The invention relates to the technical field of perforated foils, in particular to a solid-state battery current collector perforated foil and a manufacturing method thereof. The solid-state battery current collector perforated foil comprises a base material layer and a functional coating arranged on the surface of the base material layer, and the functional coating is prepared from the following raw materials in parts by weight: 60-70 parts of functional slurry, 10-20 parts of a binder, 10-20 parts of a conductive agent and 2-4 parts of an additive; the base material layer is made of any one of copper foil or aluminum foil. The aerogel structure of the functional coating provides a three-dimensional ion transmission channel, and electrode reaction kinetics is improved; due to the compounding of the silver nanowires and the conductive agent, the interface resistance is effectively reduced, and the electron conduction efficiency is enhanced; due to the introduction of the phosphorus-silicon composite flame retardant and the nano heat-conducting filler, the safety of the battery is improved from two dimensions of flame retardance and heat management; and the interface wettability and the ionic conductivity are further improved through the optimal proportion of the ionic electrolyte.

This invention provides a one-dimensional silver nanostructure / metal hydroxide composite material, its preparation method, and its application. The preparation method includes: adding a one-dimensional silver nanostructure, a metal salt, and an additive to a solvent and stirring to disperse them evenly; adding an acidic or alkaline reagent under stirring conditions to adjust the pH of the solution, causing the metal ions in the solution to convert into metal hydroxide precipitates, obtaining a one-dimensional silver nanostructure-metal hydroxide suspension; then performing solid-liquid separation, washing and drying the obtained solid product to obtain a one-dimensional silver nanostructure / metal hydroxide composite powder; wherein the metal hydroxide is aluminum hydroxide, zinc hydroxide, magnesium hydroxide, iron hydroxide, manganese hydroxide, copper hydroxide, nickel hydroxide, or cobalt hydroxide, and the one-dimensional silver nanostructure is silver nanowire or silver nanoribbon. The resulting composite material uses metal hydroxide as a carrier and separator, inhibiting the drying and agglomeration of silver nanowires from the source, exhibiting high conductivity and good redispersibility, thus improving conductivity.

The application discloses a green preparation method of silver nanowires, which comprises the following steps: adding silver powder with a purity of greater than or equal to 99.9% into a polyvinylpyrrolidone aqueous solution, stirring for 20-40 min, adding metal halide MX n , uniformly mixing, reacting under an oxidizing condition at 70-90 DEG C for 7-9 h under a pH of 1-3, centrifuging the silver halide colloid, washing to obtain a precipitate, dispersing the precipitate in water to obtain a silver halide dispersion, adding a surfactant aqueous solution and a reducing agent aqueous solution into the silver halide dispersion in sequence to obtain a mixed solution, sealing the mixed solution for reaction at 100-130 DEG C for 20-24 h, and obtaining silver nanowires; the silver nanowires prepared by the green preparation method have an average diameter of 20-60 nm, a length-diameter ratio of 400-4000, a uniform morphology and a large length-diameter ratio.

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 method comprises the following steps: S1, preparing graphene-PU resin composite slurry: S1-1, preparing modified graphene oxide: S1-2, taking PU resin and the modified graphene oxide, adding the PU resin and the modified graphene oxide into a solvent, stirring, and performing ultrasonic separation to obtain a dispersion liquid; s1-3, adding an antistatic agent, a foaming agent AC, talcum powder and silicone oil, and stirring to obtain graphene-PU resin composite slurry; s2, foam forming: injecting the graphene-PU resin composite slurry into a mold, and carrying out mold pressing foaming; and S3, post-treatment: heating and curing a product in the step S2 to obtain a foam primary product, and depositing a silver nanowire layer on the surface of the foam primary product through a magnetron sputtering process to obtain the graphene antistatic PU foam. The graphene antistatic PU foam material provided by the invention has the advantages of ultralow resistance, high elasticity, long service life (stable damp-heat aging resistance) and multifunctional synergistic antistatic property.

The siloxane-based corrosion resistant adhesive is prepared from a reaction mixture such that after curing in the form of a layer, the formed siloxane-based adhesive has a stable modulus and a shear storage modulus at a frequency of 1 Hz of no more than 0.2 MPa as measured by DMA (Dynamic Mechanical Analysis). In addition, the cured siloxane-based adhesive layer is optically transparent, and after lamination to a silver nanowire film, the silver nanowire film has a change in resistance of less than 10% after aging for 500 hours at a relative humidity of 65 DEG C / 90%. The reaction mixture forming the siloxane-based adhesive includes at least one vinyl-functionalized siloxane, at least one hydrogen-functionalized siloxane, at least one hydrosilylation catalyst, at least one siloxane tackifying resin, and at least one anticorrosive agent.

The invention belongs to the technical field of medical materials, and particularly discloses a primary battery effect hydrogen production anti-oxidation hydrogel microneedle patch and preparation and application thereof.The method comprises the following steps that a polyvinyl alcohol solution, a hydroformylated bacterial cellulose solution, a quaternized chitosan solution and a silver nanowire dispersion liquid are prepared; preparing a needle tip solution; preparing a lower substrate solution; preparing an upper-layer substrate solution; preparing a microneedle patch primary product; and carrying out salting-out treatment on the primary product of the microneedle patch by using a sulfate solution to obtain the hydrogen-producing antioxidant hydrogel microneedle patch based on the primary battery effect. According to the primary battery effect hydrogen production anti-oxidation hydrogel microneedle patch and preparation and application, the patch can spontaneously generate therapeutic micro-current and hydrogen in a wound microenvironment, photo-thermal antibiosis and drug activity are cooperated, and then multi-mechanism synergistic treatment of chronic refractory wounds such as diabetes and the like is achieved.

The present application relates to the technical fields of flexible electronic device processing, and provides a transparent flexible electrode and a preparation method thereof, the transparent flexible electrode comprising: a polymer substrate composed of a transparent flexible polymer material; a first aluminum-doped zinc oxide particle layer, which is coated on the polymer substrate and used to enhance the adhesion of a silver nanowire network layer to the polymer substrate; the silver nanowire network layer, which is coated on the first aluminum-doped zinc oxide particle layer and used to realize the conductivity of the electrode; and a second aluminum-doped zinc oxide particle layer, which is coated on the silver nanowire network layer and used to enhance the mechanical properties of the silver nanowire network layer. The method realizes the preparation of the transparent flexible electrode with high conductivity, high light transmittance and high stability at low cost.

This invention relates to the field of silver nanowire technology, and more particularly to a silver nanowire dispersion, its preparation method, and its application. The silver nanowire dispersion comprises the following components: Al₂O₃ / polyethylene glycol hybrid-coated silver nanowires, a dispersant, and a dispersion medium. The invention also discloses a method for preparing the silver nanowire dispersion and its application. This silver nanowire dispersion employs an Al₂O₃ / polyethylene glycol composite coating structure, wherein the dense and continuous Al₂O₃ inorganic layer effectively isolates air and moisture, significantly improving the antioxidant properties of the silver nanowires; the polyethylene glycol enhances the bonding force between the coating layer and the silver nanowires, compensating for the performance defects of a single coating layer, and achieving a synergistic improvement in the antioxidant properties, dispersibility, and mechanical stability of the silver nanowires.

The application discloses a preparation method of a structure-reinforced nanomeric aramid electric heating film. The preparation method is as follows: mixing two-dimensional nanometer sheets of montmorillonite dispersed in dimethyl sulfoxide and TEMPO-oxidized nanocellulose with a nanomeric aramid dispersion, then performing ultrasonic treatment on the mixed solution after protonating the nanomeric aramid. After forming a composite gel by vacuum suction filtration, a layer of silver nanowires is secondarily filtered on the surface of the composite gel, and then the composite gel is subjected to hot-pressing treatment to obtain a high-strength electric heating film. The structure-reinforced nanomeric aramid electric heating film has high strength, the maximum tensile force of which can reach 488.48 MPa, the Young's modulus of which can reach 11.79 GPa, and the toughness of which can reach 52.74 MJ / m 3 . In addition to excellent electric heating performance, the film also has good durability, and the folding resistance of the film can reach 117145 times. The application provides a thought for the development of high-strength and high-performance electric heating materials.

The application discloses a paper-based microfluidic intelligent wound monitoring bandage based on a laser-induced graphene electrode array and a preparation and signal processing method thereof. The bandage comprises a calcium alginate / zinc oxide antibacterial base, a wax-printed paper-based lateral chromatographic microfluidic channel layer, a CO2 laser direct writing LIG multifunctional electrode array, a colorimetric indication area, an NFC wireless communication module and a silver nanowire electrically controlled drug release module. The LIG electrode is fixed and modified by enzymes to detect uric acid, lactic acid, glucose and pH value respectively; the paper-based colorimetric disc detects bacterial protease and TNF-alpha; the NFC radio frequency field provides energy to realize battery-free operation. The built-in signal processing method comprises temperature compensation, cross interference elimination, multi-parameter fusion infection risk scoring and double-threshold closed-loop drug delivery decision. The preparation process mainly uses laser direct writing, screen printing and ion crosslinking, has low material cost and is green and environmentally friendly, and is suitable for closed-loop monitoring and treatment of chronic wounds at home and in clinic.

The application relates to a preparation method of a self-powered heating and warm-keeping knitted fabric, and relates to the field of thermal textile materials. The self-powered heating and warm-keeping knitted fabric is prepared by doubling electrically-conductive cotton yarn and thermal nylon yarn, and weaving a double-reverse air layer double-layer knitted fabric through an arbitrary commercial flat knitting machine; the electrically-conductive cotton yarn is cotton yarn immersed with silver nanowires, and the thermal nylon yarn is a nylon filament yarn. In this case, based on the principle of a friction nanogenerator, mechanical energy is converted into electrical energy, and then efficient electrothermal conversion is realized by using the metal characteristics, that is, the unique structure of the knitted fabric is used to improve the conversion efficiency among mechanical energy, electrical energy and thermal energy, and the double-layer knitted fabric itself has the warm-keeping performance, so that self-powered heating and warm-keeping are realized.

A transparent composite conductive film electrode for ultraviolet photoelectric devices is composed of an electrode bottom layer and a top layer on the surface of the electrode bottom layer, the electrode bottom layer is a silver nanowire film, and the top layer is a pyrolysis zirconium acetylacetonate protective layer, the pyrolysis zirconium acetylacetonate protective layer is a precursor solution prepared by taking zirconium acetylacetonate as a solute and taking ethanol and dimethylformamide as a composite solvent, the precursor solution is deposited on the surface of the silver nanowire film through atomization pyrolysis, and finally vacuum annealing is carried out to obtain the pyrolysis zirconium acetylacetonate protective layer which is decomposed into a complex component. By dissolving zirconium acetylacetonate in a composite solvent composed of DMF and ethanol, a transparent conductive film is formed on the surface of the Ag nanowire film through spray pyrolysis deposition, the light transmittance of the conductive film under 310 nm ultraviolet light reaches 97.7% of the Ag nanowire film without a protective layer, and the composite electrode effectively improves the charge collection capacity and transmission stability of the electrode.