564results about "Electro-spinning" patented technology

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 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 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.

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 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.

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.

The application relates to a preparation method of a hollow fiber membrane composite thermal insulation material, which comprises the following steps: adding 18-22% of polyurethane, 4-8% of polyethylene glycol 2000 and 72-76% of N,N-dimethylacetamide into a spinning reaction kettle to mix, stir and defoam to prepare homogeneous casting solution; based on a non-solvent induced phase separation method, the homogeneous casting solution is coated on the surface of a polyester braided tube through a spinneret by adopting a concentric circle composite spinning technology, is gathered on a spinning wheel after a coagulation bath to form a reinforced polyurethane hollow fiber membrane assembly which is arranged in parallel and obliquely crosses and is mutually bonded, and the fiber membrane assembly is hot-pressed to prepare the hollow fiber membrane composite thermal insulation material under the conditions of a temperature of 60-150 DEG C and a pressure of 120-470 MPa. Since the coating layer and the braided tube are both through porous structures, the prepared composite material has good air permeability.

The invention discloses a degradable nanocellulose sustained-release drug-loaded film and a preparation method thereof, and belongs to the technical field of drug functional materials. The preparation method comprises the following steps: mixing and stirring microcrystalline cellulose and 64wt% sulfuric acid solution, centrifuging, dialyzing to be neutral, and freeze-drying to obtain CNCs; cNCs, NaIO4 and water are mixed and then subjected to a light-shielding reaction, ethanol precipitation is added, dialysis purification is conducted, freeze drying is conducted, and formylation modified CNCs are obtained; mixing and stirring the aldehyde modified CNCs, sericin, polyvinyl alcohol, water and a target drug to obtain a core layer solution; dissolving a polylactic acid-glycolic acid copolymer into a mixed solution of chloroform and DMF (Dimethyl Formamide) to obtain a shell solution; the core layer solution and the shell layer solution are subjected to coaxial electrostatic spinning forming to obtain the drug-loaded fiber, then the drug-loaded fiber is subjected to biomimetic mineralization surface modification to obtain the degradable nanocellulose sustained-release drug-loaded film, the drug loading rate is increased, the mechanical property of the drug-loaded film is improved, and the sustained-release and release-controllable effects are achieved.

The invention relates to the technical field of preparation of alumina fibers, in particular to a method for preparing alumina synthetic fibers based on electrostatic spinning, which comprises the following steps: adding ZIF-8 into a mixed solvent to form a metal organic framework dispersion liquid, adding aluminum sec-butoxide to form a uniform precursor solution, and performing electrostatic spinning to obtain a precursor solution; adding the yttria-stabilized zirconia dispersion liquid into the precursor solution, and finally adding polyvinylpyrrolidone to obtain a composite spinning solution; and then carrying out electrostatic spinning, heat treatment and high-temperature sintering to obtain the alumina synthetic fiber. According to the preparation method, aluminum sec-butoxide is used as a precursor, ZIF-8 is used as a structure-directing agent, ordered arrangement of aluminum oxide nanoparticles is guided through a porous structure of the material, a more compact and ordered aluminum oxide crystal structure is formed, the internal structure of the fiber is more compact, meanwhile, it is ensured that the aluminum oxide nanoparticles are evenly dispersed in the fiber, and the performance of the fiber is improved. The crystallinity and the mechanical property of the aluminum oxide synthetic fiber are improved, and the overall uniformity and consistency are improved.

The invention discloses a nanofiber functional grading scaffold and a preparation method thereof. The preparation method comprises the following steps: step 1, respectively preparing a PLCL / silk fibroin spinning solution, a PLCL / silk fibroin / MDP1 spinning solution and a PLCL / silk fibroin / hydroxyapatite spinning solution; 2, processing the three spinning solutions into nanofiber yarns through electrostatic spinning; and step 3, by taking the PLCL / silk fibroin nanofiber yarns as warp yarns and taking the three kinds of nanofiber yarns as weft yarns in sequence, weaving on a machine to obtain the stent. In the nanofiber functional grading scaffold, polypeptide MDP1 is loaded in the nanofiber yarn for simulating a fibrous cartilage interface, so that the situation that the mechanical property of the whole structure is influenced by scar hyperplasia caused by excessive inflammation of a tendon-bone interface can be prevented; meanwhile, hydroxyapatite with an excellent osteogenesis promoting effect is loaded in the nanofiber yarn for simulating the bone interface, and the mechanical property of the tendon-bone interface is further enhanced.

This invention provides an in-situ polymerized yarn and its preparation method, relating to the field of yarn textile technology. The preparation method of this in-situ polymerized yarn includes the following steps: S1. Mixing a polymer, solvent colorant, and complexing agent in a specific ratio to obtain a spinning solution; S2. Simultaneously performing electrospinning, carding, and embedding to obtain a colored nanofiber / cotton composite sliver; S3. Drawing and spinning the sliver to produce yarn. By using colored nanofibers composited with a cotton web, the finishing process is eliminated to reduce contamination. The selection of polydimethyldiallyl ammonium chloride as a complexing agent in the spinning solution increases the volume occupied by the cross-linked structure formed by the complexing agent and dye, enhancing the cohesion with the polymer and improving its color fastness.

The invention discloses a low-temperature-resistant lithium iron phosphate positive electrode material and a preparation method thereof. The low-temperature-resistant lithium iron phosphate positive electrode material comprises the following raw material components in parts by weight: 90-120 parts of a lithium iron phosphate active material, 10-15 parts of a conductive agent, 8-12 parts of a binder, 5-8 parts of an additive and 60-70 parts of a solvent, the lithium iron phosphate active material is lithium iron phosphate coated with a carbon layer on the surface, and at least one metal element of aluminum, magnesium, chromium, vanadium and cobalt is doped in the lithium iron phosphate active material. The additive comprises nitrogen-doped carbon fibers compounded with titanium dioxide and titanium dioxide fibers coated with a polypyrrole layer; wherein the titanium dioxide fiber coated with the polypyrrole layer is obtained by firstly loading a first pyrrole monomer on a porous titanium dioxide fiber and then polymerizing with a second pyrrole monomer. The low-temperature-resistant lithium iron phosphate positive electrode material disclosed by the invention has excellent low-temperature resistance and conductivity, and the electrochemical performance of a battery at a low temperature can be improved.

The present invention relates to an elastomer material comprising cashew gum and, at least, another polymer, and a method for obtaining same based on an electro-hydrodynamic and / or aero-hydrodynamic processing of a previously prepared mixture of cashew gum and another polymer.

The invention discloses a preparation method of a polyether block polyamide (PEBAX) fiber solid electrolyte membrane. The polyether block polyamide (PEBAX) fiber solid electrolyte membrane is formed by compounding polyether block polyamide fibers and solid electrolyte, the preparation method comprises the following steps: dispersing a solid electrolyte in a polyether block polyamide solution, preparing a polyether block polyamide-based solid electrolyte membrane by adopting an electrostatic spinning process, carrying out vacuum heat treatment, and rolling by a roller press to obtain the polyether block polyamide-based solid electrolyte membrane. The tensile strength, Young modulus, ionic conductivity and lithium ion transference number of the developed polyether block polyamide-based solid electrolyte membrane are improved, and the polyether block polyamide-based solid electrolyte membrane is expected to be applied to all-solid-state lithium ion batteries.

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 discloses piezoelectric electrospinning rod compounded collagen-based hydrogel as well as a preparation method and application thereof, and belongs to the field of piezoelectric biological materials. Carrying out electrospinning on polyhydroxybutyrate through an electrospinning technology to prepare piezoelectric oriented fibers loaded with piezoelectric ceramics; preparing the piezoelectric oriented fiber into a piezoelectric electrospinning rod by using a freezing slicing technology; collagen and chitosan are cross-linked by using a biological cross-linking agent to form collagen-based hydrogel; and compounding the piezoelectric electrospinning rod in the collagen-based hydrogel to prepare the collagen-based hydrogel compounded by the piezoelectric electrospinning rod. The hydrogel prepared by the invention has good piezoelectric property, better mechanical property and excellent biocompatibility, and can well meet the requirement of an endogenous electric field at a cartilage defect.

The invention provides a multi-stage synergistic wound repair nanofiber membrane and a preparation method thereof. The composite fiber membrane sequentially comprises an electrostatic spinning pullulan / tannic acid / tranexamic acid nanofiber membrane for promoting the formation of blood clots, a polydopamine / calcium chloride modified electrostatic spinning cellulose acetate membrane with coagulating, antibacterial and repairing effects, and a chitosan composite cellulose non-woven fabric, and the electrostatic spinning pullulan / tannic acid / tranexamic acid nanofiber membrane is a wound surface contact layer. The nanofiber membrane has the functions of a physical hemostasis barrier and continuously releasing regeneration promoting biological signals, and a dynamic hemostasis healing process is formed.

A filter and a method for manufacturing same are disclosed. The filter including nanofibers formed by electrospinning comprises: a base having conductivity; and a nanofiber web formed by attaching the nanofibers on the base. The method for manufacturing the filter by attaching nanofibers on a base comprises the steps of: filling a syringe having a nozzle with a polymer solution, which is a raw material of the nanofibers; applying a +high voltage to the nozzle; and spinning the nanofibers from the nozzle toward the base. The base functions as a counter electrode of the nozzle.

The invention relates to the technical field of biological scaffolds, in particular to a silk fibroin-based biological 3D intelligent response scaffold and a preparation method and application thereof.The silk fibroin-based biological 3D intelligent response scaffold adopts a three-layer bionic gradient structure of an oriented fiber membrane, a porous sponge layer and an interface layer, simulates natural tissues, and has the advantages that the bionic gradient structure is improved; mechanical guidance, cell inhabitation and biological activity interfaces are provided respectively, and high-quality regeneration of blood vessels, nerves and skin is promoted synergistically. According to the present invention, the pH / enzyme / temperature triple response unit is provided, such that the lesion microenvironment can be perceived, the targeted release can be triggered, the problem of high burst release rate of the traditional physical drug loading can be solved, and the on-demand accurate drug delivery can be achieved. The SF / HPMC gel is adopted for 3D printing, the printing precision is high, and the porosity difference is 1t; the product performance is stable, and the pore structure can be precisely designed and customized according to the regeneration requirements of different tissues (such as blood vessels, nerves and skin).

The invention relates to the technical field of fibers, in particular to a PHBV-containing bio-based high-strength antibacterial fiber and a preparation method thereof.The fiber is obtained by conducting blending and electrostatic spinning on environment-friendly materials including silk fibroin, polyoxyethylene, PHBV and a composite natural antibacterial agent; 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, N-hydroxysuccinimide, a composite natural antibacterial agent and carboxymethyl chitosan are used as raw materials to prepare a cross-linking steeping liquor, and the electrostatic spinning fibers are subjected to cross-linking modification treatment in the cross-linking steeping liquor; lignin and hexadecyl trimethyl ammonium bromide are combined for electrostatic assembly to coat a natural antibacterial agent to serve as a pretreatment natural antibacterial agent, 3-chloropropyl-trimethoxysilane serves as a coupling agent, ethylenediamine serves as an amination modification reagent, an amination natural antibacterial agent is obtained, and then a bio-based bacterial adhesion prevention flame-retardant polymer is grafted.

The invention belongs to the technical field of new energy materials and lithium ion batteries, and relates to a PVDF-HFP / LLZO composite solid electrolyte membrane, a preparation method and application of the PVDF-HFP / LLZO composite solid electrolyte membrane in a flexible electronic device. The composite solid electrolyte membrane disclosed by the invention comprises a matrix formed by PVDF-HFP (Polyvinylidene Fluoride-Hexafluoropropylene) nanofibers and LLZO (Likelike Likelike Zinc Oxide) particles, and a three-dimensional network structure formed by crosslinking DVB (Divinylbenzene) in the matrix, wherein SDS (Sodium Dodecyl Sulfate) is adsorbed on the surfaces of the LLZO particles. A flexible fiber scaffold structure is constructed through an electrostatic spinning process, and sodium dodecyl sulfate (SDS) is introduced into a precursor to carry out interface regulation and control treatment on the surface of an inorganic filler LLZO, so that the dispersity and wettability of the inorganic filler LLZO in a polymer matrix are improved; meanwhile, divinylbenzene (DVB) is introduced as a cross-linking monomer, and in-situ construction of a three-dimensional network structure is realized under a heat treatment condition, so that the mechanical stability and ionic conductivity of the membrane material are remarkably improved.

The invention discloses a single-layer Janus fiber membrane with pore and wettability double gradients and a one-step electrospinning preparation method of the single-layer Janus fiber membrane, and belongs to the technical field of electrostatic spinning functional fiber materials. According to the method disclosed by the invention, polyacrylonitrile (PAN) has weak hydrophilicity, and hydrophobic modification and hydrophilic modification of the PAN fiber membrane can be realized by respectively adding fluorinated titanium dioxide (F-TiO2) particles and tannic acid (TA); gradient regulation and control of pores are realized by regulating and controlling the concentration of the PAN spinning solution. The method comprises the following steps: S1, mixing F-TiO2 particles with PAN to obtain a spinning solution A; s2, mixing TA and PAN to obtain a spinning solution B; s3, the spinning solution A and the spinning solution B are sequentially sucked into the same injector, and a pre-spinning solution C is obtained; and S4, preparing the single-layer fiber membrane through electrostatic spinning. The fiber membrane has a pore / wettability double-gradient structure, shows excellent one-way moisture conduction performance, and has wide application prospects in the fields of personal protection masks, outdoor sportswear and the like.

Nanofibrous materials and their fabrication by electrospinning are disclosed for passive temperature control on earth and in outer space. The materials combine high solar reflectivity with high thermal emittance in the infrared region, including in the long wavelength atmospheric window region between 8 μm and 13 μm. The materials include nanofibrous PTFE / PEO and silica materials. The physical properties of the materials are suitable for extraterrestrial as well as terrestrial applications.

The application discloses a preparation method of a biomass-based air purification membrane and belongs to the technical field of air purification membrane preparation. The method comprises the following steps: step one, a spinnable polymer material is placed in a solvent and heated and stirred until the polymer material is dissolved, and then a solution of biomass material is added after cooling, and the solution is uniformly mixed to obtain a spinning precursor solution; step two, a drum is used as a receiving device, and electrostatic air-jet spinning is performed on the spinning precursor solution to obtain an electrostatic air-jet spun fiber membrane; and step three, an array template method is used to patternize and press the electrostatic air-jet spun fiber membrane by using a flat vulcanizing machine, so that the electrostatic air-jet spun fiber membrane has a periodic micro-pattern structure, and the air purification membrane is obtained. The application prepares an air purification membrane with a blocking effect on ultraviolet rays, and the air purification membrane has high filtration efficiency and small pressure drop, and has a good application prospect in the field of air purification.

The application provides an absorbable vascular stent covering facilitating endothelialization and a preparation method thereof, and belongs to the technical fields of biomedical materials and vascular stent covering preparation. The absorbable vascular stent covering facilitating endothelialization is prepared based on modified silk fibroin and domestic silkworm silk. The inner surface of the absorbable vascular stent covering facilitating endothelialization has a nano topological structure and a matrix-like component simulating a vascular basement membrane, and the outer surface has a micro topological structure. The absorbable vascular stent covering facilitating endothelialization has good mechanical properties and excellent endothelial cell activity, and can be used for producing a vascular stent capable of rapidly forming a new endothelial layer, maintaining stable blood flow, and inhibiting thrombosis and inflammation.

A tracker system for use in image guided surgery is disclosed. The tracker system may couple to wet tissue and may include a navigation tracker and a base pad that couple to each other. The base pad may be fabricated from a plurality of nonwoven nanofibers. The base pad is configured to couple to body tissue of a patient via at least one of adsorption, hydration equilibrium, and macromolecular interpenetration.

Mechanically and piezoelectrically anisotropic polymer fibers may be formed by spinning a polymer solution or gel that includes a high molecular weight crystallizable polymer and a liquid solvent. The solvent may be configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the spun fibers. The polymer solution may also include a low molecular weight additive. The high and low molecular weight polymers may each be characterized by a bimodal molecular weight distribution where the molecular weight of the additive is less than the molecular weight of the crystallizable polymer. The polymer(s) and the additive(s) may be independently selected from vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropene, vinyl fluoride, etc. The spun fibers may be oriented, annealed, poled, and woven or laminated to form a polymer thin film having a high elastic modulus and a high electromechanical coupling factor.