859results about "Electro-spinning" patented technology

The invention belongs to the technical field of biomedical engineering, and particularly relates to a biological rotator cuff patch with a double-gradient structure and a preparation method of the biological rotator cuff patch. The preparation method comprises the following steps: carrying out electrostatic spinning on a spinning solution, controlling the rotating speed of a receiving roller to increase at a constant speed in the electrostatic spinning process, and obtaining a nanofiber membrane after electrostatic spinning; l-polylactic acid and D-polylactic acid are simultaneously dissolved in the spinning solution; the minimum value of the rotating speed of the receiving roller is 100-500 rpm, and the maximum value of the rotating speed of the receiving roller is 3000-4000 rpm. The finally prepared biological rotator cuff patch with the double-gradient structure presents an orientation degree gradient and a piezoelectric effect gradient at the same time on the thickness scale, and has mechanical supporting capacity and biocompatibility, and bionic healing promotion of the patch with the gradient structure is achieved.

The invention discloses a preparation method of a composite phase-change temperature-adjusting organic fiber membrane with a flexible core-shell structure, and belongs to the field of intelligent textile materials.The preparation method comprises the following steps that polyacrylonitrile (PAN) serves as a sheath layer material, n-octadecane serves as a core layer phase-change material, and the composite phase-change fiber membrane is prepared through a melt spinning method and a coaxial electrostatic spinning technology. According to the invention, the fiber membrane with high melting enthalpy value (171.6 J / g), excellent thermal stability (the latent heat is still 117.7 J / g after 100 times of heating-cooling circulation) and excellent mechanical properties (the tensile strength is 2.418 MPa, the tensile yield stress is 2.331 MPa, the tensile strain at break is 36.5%, and the elastic modulus is 58.226 MPa) can be prepared; a new thought is provided for preparing intelligent textiles with good flexibility and efficient heat management capability.

The present invention relates to an electrospun fiber, a process for preparing the same, a nonwoven fabric comprising the electrospun fiber, as well as corresponding uses and articles. The inventive electrospun fiber comprises a polymer, a surface-reacted calcium carbonate and a pharmaceutically or nutraceutically active ingredient, wherein at least a part of the pharmaceutically or nutraceutically active ingredient is present within the pores of the surface-reacted calcium carbonate. The inventive fibers may be used e.g. in yarns, transdermal patches, intrabuccal patches, implantable textiles, wound dressings and / or medical tapes.

The invention belongs to the technical field of biomedical textile materials, and relates to a multi-level artificial dura mater repair scaffold and a preparation method thereof.The main body structure of the repair scaffold is three layers of nanofiber membranes deposited layer by layer and crosslinked through glutaraldehyde, the inner layer is a coaxial nanofiber membrane loaded with minocycline and insulin-like growth factor-1, and the outer layer is a coaxial nanofiber membrane loaded with glutaraldehyde. Wherein the insulin-like growth factor-1 is located in the core layer, and the minocycline is located in the shell layer; the middle layer is a polycaprolactone nanofiber membrane, and the outer layer is a polycaprolactone / hyaluronic acid nanofiber membrane; the inner layer can release minocycline and insulin-like growth factor-1 in a sequential manner, so that the inflammation environment after brain injury can be effectively regulated and controlled, and neural restoration can be promoted; and the outer layer shows an excellent anti-adhesion effect by inhibiting the adhesion and proliferation of fibroblasts, so that the hindrance on nerve regeneration caused by excessive formation of scar tissues is effectively avoided. The middle layer obviously enhances the ability of the stent to prevent leakage of cerebrospinal fluid; and the structural design is exquisite, the preparation method is simple and convenient, and wide market prospects and profound social values are achieved.

The invention belongs to the technical field of carbon material fibers, and discloses a preparation method of a carbon nanofiber reinforced carbon material fiber fabric, which comprises the following steps: fixing a weakly twisted carbon material fiber tow on an electrostatic spinning nano yarn machine; forming a carbon nanofiber membrane by utilizing electrostatic spinning, uniformly wrapping the carbon nanofiber membrane on a carbon material fiber bundle subjected to weak twisting, then rolling into a shaft, then weaving the rolled fibers into a fabric, and sequentially performing hot pressing and carbonization treatment on the fabric to prepare a carbon nanofiber reinforced carbon material fiber fabric; the weak twisting means that the twisting degree is 5-13 twists per meter. According to the invention, the carbon nanofiber is coated on the carbon material fiber, so that the interface bonding strength between the nanofiber and the carbon material fiber is improved, and then the fabric prepared from the carbon nanofiber is subjected to hot pressing and carbonization treatment, so that the mechanical property, the electrical conductivity and the heat-conducting property of the fabric are further improved; therefore, the composite material has a huge application prospect in the fields of high-performance composite materials, intelligent textiles and the like.

Aspects of the disclosure relate to synthetic tissue or organ scaffolds and methods and compositions for promoting or maintaining their structural integrity. Aspects of the disclosure are useful to prevent scaffold damage (e.g., delamination) during or after implantation into a host. Aspects of the disclosure are useful to stabilize tissue or organ scaffolds that include electrospun fibers.

The present invention relates to the technical field of flexible electronics, and relates to a breathable and stretchable circuit capable of being activated by imprinting, and a preparation method therefor and a use thereof. The preparation method for the breathable and stretchable circuit capable of being activated by imprinting in the present invention comprises the following steps: dissolving a thermoplastic polymer in a solvent, adding liquid metal particles, and mixing and dispersing to obtain a mixed solution; carrying out electrospinning on the obtained mixed solution to prepare a nanofiber membrane; and using a stamping model having a circuit pattern to stamp the obtained nanofiber membrane so as to obtain the breathable and stretchable circuit capable of being activated by imprinting. The present invention ensures the breathability and the stretchability by using the nanofiber membrane. The liquid metal particles match fibers in diameter, and therefore, liquid metal in nanofibers can be overflowed by means of imprinting to form a conductive path, achieving high-precision preparation of circuits.

The invention discloses an aerogel composite fiber flame-retardant thermal insulation material as well as a preparation method and application thereof, and belongs to the technical field of novel building materials. The aerogel composite fiber flame-retardant thermal insulation material is prepared from the following components in parts by weight: 0.5 to 2.5 parts of SiO2 aerogel particles, 18 to 21 parts of a polymer, 1 to 3 parts of an inorganic flame retardant, 1 to 3 parts of Al2O3 microbeads and 0.9 to 3.2 parts of a cross-linking agent, the SiO2 aerogel particles and the inorganic flame retardant are wrapped in the aerogel composite fiber flame-retardant thermal insulation material, and the Al2O3 microbeads are loaded on the surface of the aerogel composite fiber flame-retardant thermal insulation material. According to the aerogel composite fiber flame-retardant thermal insulation material, the SiO2 aerogel particles and the polymer in specific parts are combined, and the inorganic flame retardant, the Al2O3 microbeads and the cross-linking agent are matched, so that the aerogel composite fiber flame-retardant thermal insulation material has the heat conductivity, the density, the flame retardant property and the mechanical property, overcomes the defects of an existing thermal insulation material, can replace an existing building thermal insulation material, and has a wide application prospect. The industrial application of the aerogel is promoted.

The invention relates to a carbon nanofiber loaded Cu nanoparticle composite material prepared by combining an electrostatic spinning method and a high-temperature in-situ reduction reaction and used as a high-cycle-stability zinc negative electrode coating of an aqueous zinc ion battery. Belongs to the technical field of new energy materials. The prepared composite electrode material is regular in structure and excellent in electrochemical performance. Cu is introduced through a high-temperature in-situ reduction reaction. And after the Cu is loaded with the carbon nanofibers, not only is the slow dynamic process of the bare zinc electrode improved, but also the uniform deposition of Zn < 2 + > on the zinc negative electrode in the embedding / separating process is induced.

The invention relates to a device and a method for preparing nanofiber core-spun yarn through batch coaxial electrostatic spinning. The device comprises a needleless dish-shaped spray head, an air blowing auxiliary device, a liquid supply device, an annular twisting device, a high-pressure generator, a negative-pressure air suction device, a winding device and an unwinding device. The core yarn penetrates through the axis of the needleless dish-shaped nozzle, the nanofiber generated by the needleless dish-shaped nozzle coaxially wraps the surface of the core yarn through the whole spinning device, and batch preparation can be achieved. The device is further provided with an air blowing auxiliary device and a negative pressure air suction device, under the air blowing effect of an air blowing nozzle and the adsorption effect of a negative pressure air suction shell, airflow force can be generated to promote jet flow to be further stretched in a straightened mode, under the common influence of electric field force and the airflow force, the jet flow is fully stretched, bending is reduced, and the service life of the jet flow is prolonged. Therefore, the nanofiber bundles can continuously cover the surface of the core yarn in a high-orientation state under the traction of the annular twisting device, and the continuous nanofiber core-spun yarn is formed.

The invention belongs to the technical field of functional composite fibers, and discloses a wear-resistant nanofiber-reinforced protective graphene fiber and a preparation method and application thereof.The wear-resistant nanofiber-reinforced protective graphene fiber comprises a graphene fiber tow and nanofibers, the nanofibers coat the graphene fiber tow in a three-dimensional porous network mode, and the nanofibers coat the graphene fiber tow in a three-dimensional porous network mode. Forming a stress buffer layer; wear-resistant particles are uniformly loaded in the three-dimensional porous network; the preparation method comprises the following steps: fixing the graphene fibers subjected to surface pretreatment on an electrostatic spinning nano-yarn machine, forming a nano-fiber membrane by utilizing electrostatic spinning, uniformly wrapping the graphene fibers subjected to surface pretreatment with the nano-fiber membrane, then rolling into a shaft, and then carrying out hot-pressing roller treatment on the rolled fiber bundle, so as to obtain the graphene nano-yarn. The wear-resistant nanofiber reinforced protective graphene fiber is prepared; the graphene fiber is used for weaving to obtain the graphene fiber fabric. The fiber prepared by the invention and a fabric woven by using the fiber have excellent mechanical properties, wear resistance, electric conductivity and heat conductivity.

The invention relates to the field of temperature-adjusting fibers, and particularly discloses a preparation method of a phase-change temperature-adjusting fiber. The phase-change temperature-adjusting fiber is of a core-shell composite structure, a core layer is a lyocell fiber with wood pulp as a raw material, phase-change microcapsules are arranged on the fiber, octadecane serves as a phase-change material, and the phase-change microcapsules are formed by wrapping melamine-formaldehyde resin formed by condensation of melamine and formaldehyde. The outer layer is a shell fiber which is formed by blending polyacrylonitrile and cellulose acetate, the surface of the shell fiber contains structures such as pores, micropores and cracks, and nano titanium dioxide particles capable of absorbing ultraviolet rays are attached to the shell fiber. Experiments prove that the phase-change temperature-regulating fiber not only has a phase-change temperature-regulating function, but also has the effects of ultraviolet resistance, moisture permeability and sweat releasing. The phase-change temperature-adjusting fiber is used as a raw material, and is blended and woven with other fibers to prepare the temperature-adjusting functional fabric.

The invention discloses a preparation method of a visual electro-heating-strain sensing bifunctional flexible device based on hollow conductive nanofiber yarn, which comprises the following steps: firstly, taking water-soluble vinylon as core yarn, and continuously coating elastic nanofiber on the surface of the core yarn through conjugate electrostatic spinning to prepare elastic nanofiber / vinylon composite wrap yarn; then placing the core yarn in a hot water bath to dissolve the core yarn so as to obtain hollow nanofiber yarn; coating conductive treatment and pre-drafting treatment are synchronously carried out on the hollow nanofiber yarn through a roll-to-roll method, and the hollow conductive nanofiber yarn with a wrinkle structure is obtained; multiple pieces of hollow conductive nanofiber yarn are combined and twisted, and heat and moisture setting treatment is carried out to form yarn with an electric heating-strain sensing function; and finally, the surface of the yarn is coated with a mixed solution of waterborne polyurethane and thermochromic microcapsules to form a visual electro-heating-strain sensing dual-function flexible device, and the visual electro-heating-strain sensing dual-function flexible device can achieve collaborative monitoring of human body movement and physiological information and achieve the visual thermal therapy effect at the same time under the low working voltage. The method has a huge application prospect in the field of intelligent textiles.

The present invention provides a preparation method preparation method for three-layer artificial blood vessel and application thereof. The three-layer artificial blood vessel comprise three layers, electrospinning inner layer, dense middle layer and electrospinning outer layer, the three-layer structure is closely combined and difficult to separate. The inner layer with a cytoskeleton-like structure can promote the formation of intima; the dense middle layer can effectively prevent the leakage of biomacromolecules and increase the puncture resistance of the whole artificial blood vessel; and the outer layer can promote the growth of tissue cells and better integrate with tissue. The three-layer artificial blood vessel provided by the invention has excellent blood compatibility, good flexibility, good puncture resistance and interlayer peeling resistance. The preparation method is convenient and is suitable for industrial scale production.

The invention relates to a high-moisture-absorption chemical fiber filament composite hydrogel core-spun yarn and a preparation method thereof.The chemical fiber filament composite hydrogel core-spun yarn is prepared through the steps that hydrogel precursor polymers and chemical fiber filaments serve as raw materials, the chemical fiber filament composite core-spun yarn is prepared through an electrostatic spinning nano core-spun yarn technology, and then the chemical fiber filament composite hydrogel core-spun yarn and a cross-linking agent are subjected to a chemical cross-linking method. The chemical fiber filament composite hydrogel core-spun yarn prepared by the invention has excellent moisture absorption, water permeation and water conduction capabilities, can be used in the field of civil clothing such as work clothes and mountaineering wear, and provides a comfortable and healthy microenvironment for a human body.

The invention relates to the technical field of lithium batteries, in particular to a lithium-loving PCOF-PMIA composite nanofiber membrane and a preparation method and application thereof.According to the preparation method, the lithium-loving PCOF-PMIA composite nanofiber membrane is obtained by means of an electrostatic spinning technology and a room-temperature in-situ growth technology, and the mechanical strength of the fiber membrane is greatly improved; the COF nanoparticles are prepared by a room-temperature stirring synthesis process, and the method has the advantages of mild reaction conditions, simplicity in operation, short time consumption and the like; the lithium-loving PCOF-PMIA composite nanofiber membrane has a uniform net-shaped nanofiber structure, and COF particles on the surface and in the fiber can be effectively connected at the same time, so that the maximum utilization of the COF can be achieved. The PMIA and the PCOF are simultaneously introduced into the composite nanofiber membrane provided by the invention, so that the ionic conductivity and the lithium ion transference number of the solid electrolyte are favorably improved, and the composite nanofiber membrane is expected to be applied to preparation of the solid composite electrolyte.

The present invention belongs to the technical field of functional composite fibers, and discloses a wear-resistant nanofiber-reinforced and protected graphene fiber, a preparation method thereof and an application. The wear-resistant nanofiber-reinforced and protected graphene fiber comprises a graphene fiber bundle and nanofibers. The nanofibers coat the graphene fiber bundle in the form of a three-dimensional porous network to form a stress buffer layer; wear-resistant particles are uniformly loaded inside the three-dimensional porous network. The preparation method is as follows: fixing the surface-pretreated graphene fiber on an electrospinning nanofiber yarn machine, forming a nanofiber membrane by electrospinning and uniformly wrapping it on the surface-pretreated graphene fiber, then winding it into a roll, and then performing a hot roll treatment on the wound fiber bundle to obtain the wear-resistant nanofiber-reinforced and protected graphene fiber. The application is: used for weaving to obtain a graphene fiber fabric. The fiber prepared by the present invention and the fabric woven therefrom have excellent mechanical properties, wear resistance, electrical conductivity and thermal conductivity at the same time.

The present invention belongs to the technical field of carbon material fibers, and discloses a preparation method of a carbon nanofiber reinforced carbon material fiber fabric. The preparation method is as follows: Fix the weakly twisted carbon material fiber tow on an electrospinning nanofiber yarn machine, form a carbon nanofiber membrane by electrospinning and uniformly wrap it on the weakly twisted carbon material fiber tow, then wind it into a roll, and then weave the wound fibers into a fabric, and sequentially perform hot pressing and carbonization treatments on the fabric to obtain a carbon nanofiber reinforced carbon material fiber fabric; Weak twisting means that the twist is 5 to 13 turns / meter. The present invention first coats the carbon nanofibers on the carbon material fibers to improve the interfacial bonding strength between the nanofibers and the carbon material fibers, and then performs hot pressing and carbonization treatments on the fabric prepared therefrom to further improve the mechanical properties, electrical conductivity and thermal conductivity of the fabric, making it show great application prospects in the fields of high-performance composite materials, intelligent textiles, etc.

The invention belongs to the technical field of thermal protection materials, and provides a temperature sensing array based on fabric type flexibility, a preparation method and a spinning solvent. The preparation method comprises the following steps: S1, forming a polymer precursor through a spinning forming process to obtain an initial fiber; s2, performing twisting forming on the initial fibers to form twisted fibers; s3, the twisted fibers are subjected to curing treatment and pyrolysis treatment, and sensing yarn is obtained; s4, the sensing yarn is integrated on the flexible ceramic fiber cloth, and the flexible ceramic fiber cloth with the sensing array ceramic temperature-sensitive yarn is obtained; s5, performing laser local heating on the wire connection position of the sensing array to prepare a conductive electrode; and S6, selecting a wiring mode according to the conductivity and the target test temperature, and identifying a real-time temperature field according to the temperature resistance characteristic. Array integration of the woven thermal protection material can be realized through a weaving process.

The invention discloses a preparation method and equipment of three-chamber eccentric parallel structure nanofibers. The preparation method comprises the following steps: simultaneously carrying out high-voltage electrostatic spinning on three spinning solutions; the two spinning solutions are respectively divided into microfluids to be led out through an array formed by two sets of series metal capillary tubes; the other spinning solution is divided into microfluids to be led out through a plurality of bottom through holes of the insulating container; the first series of metal capillary tubes are inserted into the second series of metal capillary tubes to form a series of metal capillary eccentric sleeves; the series of metal capillary eccentric sleeves penetrate through the insulating container and extend out of one side of the interior of the bottom through hole to form a combined eccentric outlet of three strands of spinning solutions; three spinning solutions are guided into a high-voltage electrostatic field in an eccentric parallel mode through the combined eccentric outlet, and the three-chamber eccentric parallel structure nanofiber is formed through single-step direct stretching. According to the method, the capability of preparing the three-chamber eccentric parallel structure characteristic nanofiber with a complete structure in a single-step, batch and large-scale manner is endowed.

The invention belongs to the technical field of energy storage system device materials, and particularly relates to a modified silk amino acid-based gel electrolyte as well as a preparation method and application thereof. The method comprises the following steps: S1, uniformly mixing and stirring 15 to 30g of acrylamide, 50 to 60g of zinc sulfate heptahydrate, 0.1 to 1g of silk amino acid and 100g of water; adding 5mL to 10mL of ethanol, and uniformly shaking; then sequentially adding a proper amount of N-N methylene bisacrylamide and a photoinitiator, and continuously stirring until the solution is clear to obtain an electrolyte; s2, dropwise adding the prepared electrolyte into a polytetrafluoroethylene (PTFE) plate, and covering the polyurethane fiber membranes obtained by electrostatic spinning on the two sides; and carrying out light curing under ultraviolet irradiation to obtain the modified silk amino acid (M-SAA) gel electrolyte. According to the invention, silk amino acid (SAA) is introduced to construct a compact protective film with a beta folding structure, so that zinc dendrite growth and side reaction are inhibited, and the stability of the zinc negative electrode of the battery and the cycle performance of the battery are improved.

The invention discloses a composite hydrophobic fiber membrane based on a friction nano-generator and a preparation method of the composite hydrophobic fiber membrane. The composite hydrophobic fiber membrane is composed of a polyvinylidene fluoride nanofiber membrane, boracite particles, hydrophobic nanoparticles and polyvinylidene fluoride microspheres. The boracite particles are embedded in fibers of the polyvinylidene fluoride nanofiber membrane, and the hydrophobic nanoparticles are uniformly attached to the polyvinylidene fluoride microspheres and the polyvinylidene fluoride nanofiber; the hydrophobic nano particles are titanium dioxide nano particles or zirconium dioxide nano particles. The preparation method comprises the following steps: dispersing boracite powder and polyvinylidene fluoride powder into N, N-dimethylformamide to prepare an electrostatic spinning solution; the preparation method comprises the following steps: dispersing hydrophobic nanoparticles and polyvinylidene fluoride powder into N, N-dimethylformamide to prepare an electrostatic spraying solution; the composite hydrophobic fiber membrane is prepared through synchronous electrostatic spinning and electrostatic spraying. The problem that a modified polyvinylidene fluoride fiber membrane friction nanometer generator is low in output electrical performance in a high-humidity environment can be solved.

Electrospun nanofiber membranes are provided. The membranes are electrospun from a suitable biocompatible and biodegradable biopolymer, e.g. gelatin, collagen, etc., to generate a membrane, which is then cross-linked. The membrane may be seeded with cells. The compositions find use tissue regeneration, particularly in repair, regeneration, and / or reconstruction of lamellar or partial defects of wounded corneal tissue.

The present invention relates to a kind of emulsion mask with whitening, moisturizing and anti-wrinkle effects and its preparation method and application. In particular, oriental orientalis leaf fermentation liquid and ginkgo leaf extract are selected as the main components of the mask liquid. These components are highly compatible with the skin, mild and non-irritating, and hypoallergenic. In addition, silk protein, vitamin C, niacinamide and inositol are also specially added to the mask. These components work together to effectively inhibit tyrosinase activity, reduce free radicals, block melanin production, thereby reducing spots, making the skin smooth and delicate, brightening the skin tone, and enhancing the whitening effect. The mask base cloth uses silk protein fiber as the core material, and is integrated with polyvinyl alcohol and chitosan, which not only helps to lift and tighten the skin, but also is beneficial to the load of the film liquid components. The mask not only has a significant moisturizing and hydrating effect, low irritation, but also can enhance skin elasticity, whiten the skin, resist aging, and effectively control oil secretion, meeting the market demand for multifunctional and high-performance masks.

The present invention relates to the technical field of knitted fabrics, in particular to an antibacterial and anti-ultraviolet bio-based lyocell fabric and a preparation method thereof. The fabric comprises a three-layer composite structure connected by bio-based lyocell yarns: an outer layer is formed by weft-knitting a composite yarn formed by nylon-66 fiber and a first functional fiber, wherein the first functional fiber comprises bio-based lyocell fiber, thermochromic zinc oxide particles, nanosilver / graphene hybrid material, a hydrophobic pore switch polymer, and a cross-linking agent; an intermediate layer is formed by weft-knitting a second yarn formed by a second functional fiber, wherein the second functional fiber comprises bio-based lyocell fiber, temperature-sensitive microcapsules, a humidity-expanding gel, and is composed of an acrylic acid / sodium alginate interpenetrating network; a heat-conducting graphene sheet, and other functional additives; and a third functional fiber in the inner layer comprises bio-based lyocell fiber, Janus-type double-sided microcapsules, a porous graphene framework, a phase change material, and other regulators.

A boron-doped graphene composite solid-state electrolyte and its preparation and application. A mixed solution of polyacrylonitrile (PAN) and N,N-dimethylformamide is prepared into a PAN porous film using electrospinning technology. A PEO casting solution is prepared by mixing boron-doped graphene, polyethylene oxide, lithium bis(trifluoromethanesulfonylimide), and acetonitrile. This solution is then cast onto the PAN porous film and, after vacuum drying, forms a composite solid-state electrolyte with polyacrylonitrile fibers as a support, polyethylene oxide as a matrix, and boron-doped graphene as a filler. The composite solid-state electrolyte prepared by the present invention has high ionic conductivity and lithium ion transference number, providing lithium batteries with good rate performance and cycle stability.

The invention relates to the technical field of fibers, and discloses a high-water-absorption fiber for paper diapers and a preparation method thereof.The high-water-absorption fiber is prepared by taking polyvinyl alcohol as a base material and assisting with modified illite and an aerogel modified material through electrostatic spinning, a natural antibacterial agent pterostilbene is grafted to the surface of the illite, and the high-water-absorption fiber is prepared through electrostatic spinning; on one hand, the compatibility between the illite and the polyvinyl alcohol can be improved through a surface modification mode, and the water absorption effect of the fiber can be enhanced to a certain extent by utilizing the pore structure of the illite, on the other hand, the problem that the illite is easy to oxidize and lose efficacy can be effectively improved after the pterostilbene is grafted on the surface of the illite, and the water absorption effect of the fiber can be enhanced to a certain extent. The aerogel modified material has a special pore structure, so that urine can be quickly absorbed and locked and prevented from back seepage, meanwhile, the pore structure can store the urine, the absorbed water is not easy to flow out, and the excellent water absorption can greatly enhance the water absorption capacity of the polyvinyl alcohol fiber.

The embodiment of the invention discloses a preparation method of a solid electrolyte membrane and the solid electrolyte membrane. The preparation method of the solid electrolyte membrane comprises the following steps: providing a composite fiber solution, a thermoplastic elastomer solution, a solid electrolyte matrix and a positive electrode material; performing coaxial electrostatic spinning treatment on the composite fiber solution and the thermoplastic elastomer solution to obtain a fiber adhesive; carrying out ball milling treatment on the fiber adhesive, the solid electrolyte matrix and the positive electrode material to obtain a fibration mixture; and carrying out hot rolling treatment on the fiberized mixture to obtain the solid electrolyte membrane. According to the preparation method provided by the invention, the fiber adhesive prepared from the composite fiber and the thermoplastic elastomer, the solid electrolyte matrix and the positive electrode material are subjected to ball milling and hot rolling treatment, so that the interface contact between the cathode and the electrolyte is optimized, the interface impedance is reduced, the cyclic stress is relieved, and the generation of interface cracks is inhibited; the prepared solid electrolyte membrane is high in ionic conductivity and stable in structure.

The invention provides a method for preparing nanofiber doped with a large-particle antibacterial agent by a needleless electrostatic spinning device. The method comprises the following steps: adding a high-molecular polymer and a large-particle antibacterial substance into an organic solvent to prepare a spinning solution; electrospinning nanofibers doped with a large-particle antibacterial agent on the surface of the fabric through a needleless electrostatic spinning device; the needleless electrostatic spinning device comprises an electrode wire, a liquid brushing tank, a direct-current high-voltage power supply, a winding roller, a metal plate, a liquid storage bottle and a movable spraying brush. The electrode wire is used for replacing a needle type electrode, production efficiency is improved, and needle blockage is avoided; the liquid storage bottle reduces volatilization of the spinning liquid, the spinning liquid is continuously stirred and pumped to the liquid brushing tank to be brushed on the electrode wires, the antibacterial agent is prevented from being deposited, and the antibacterial agent is evenly distributed on the nanofibers; an air injection brush head is installed to prevent large particles from depositing on the electrode wires; according to the method, the selection limitation on the high-molecular polymer and the antibacterial agent is small, and the prepared antibacterial fabric has lasting antibacterial property.

An enhanced flash evaporation / electrospinning composite spinning equipment includes a flash spinning equipment, an electrospinning equipment, and a grounded receiving conveyor belt; the flash spinning equipment includes a flash spinning spinneret unit, the flash spinning spinneret unit includes a first spinneret, and the first spinneret is grounded; the electrospinning equipment includes a high-voltage power supply and an electrospinning spinneret unit, the electrospinning spinneret unit includes a second spinneret, and the second spinneret is connected to the high-voltage power supply; the first spinneret and the second spinneret are both located above the receiving conveyor belt at opposite positions with a distance of D, and the value range of D is 15-40 cm. The enhanced flash evaporation / electrospinning composite spinning equipment has a simple structure, and can prepare products that are not easy to delaminate, and excellent in waterproof performance and air permeability.