201 results about "Polystyrene sulfonate" patented technology

Sorbent cartridges having a polystyrene sulfonate resin saturated with calcium ions for the performance of kidney replacement therapy are disclosed. Systems and methods having or using a sorbent cartridge, a dialyzer, control components, a cartridge having a polystyrene sulfonate resin, and fluid reservoirs configured to be of a weight and size suitable to be worn or carried by an individual requiring treatment are disclosed. A system for performing kidney replacement therapy has a controlled compliance dialysis circuit, where a control pump controls the bi-directional movement of fluid across a dialysis membrane. The system provides for the monitoring of an inlet and outlet conductivity of the sorbent cartridge to quantify or monitor the removal of urea by the sorbent cartridge.

The invention provides a conductive polymer aerogel and a preparation method thereof, wherein the conductive polymer aerogel is an organic conductive aerogel taking an intrinsic conductive polymer polyelectrolyte dopant as a three-dimensional network structural material, and the intrinsic conductive polymer adopted by the conductive polymer aerogel is poly (3,4) ethylenedioxythiophene; the doped polyelectrolyte is chosen from one or the mixture of more than one of water-soluble polyacrylate, polystyrene sulfonate, polyaniline sulfonate, poly (2-acrylamido-2-methyl-1-propanesulfonic acid salt), water-soluble anionic poly (3,4) ethylenedioxythiophene and the like. The conductive polymer aerogel has the aperture of 1 nm-5 mu m, the porosity of 75.0-99.5%, the density of 0.05-0.5g / cm3, the specific surface area of 100-1000 m2 / g and the electrical conductivity of 10-5 to 102 s / cm.

The invention relates to a flexible polymer solar battery with a wrinkling structure, comprising a transparent electrode, a cavity transporting layer, photo-activation layer materials, an electron transporting layer and a metal electrode, wherein the photo-activation layer materials comprise a donor material and an acceptor material; the transparent electrode is made of graphene / PEDOT(poly(3,4-ethylenedioxythiophene):PSS(polystyrene sulfonate) / PET(polyethylene terephthalate) composite film; the hole transporting layer is made of a PEDOT:PSS film; an electron donor is made of P3HT; an electron acceptor is made of graphene / PEDOT:PSS composite particles; the electron transporting layer is made of a zinc-oxide film; and the metal electrode is made is silver. The flexible polymer solar battery is prepared by the following steps of: adopting an ink-jet printer to print a graphene / PEDOT:PSS transparent conducting layer, the hole transporting layer, active-layer materials, the electron transporting layer and metal slurry on a pre-stretched PET film in sequence, carrying out drying treatment on the materials under the temperature being 50-100 DEG C, then removing pre-stretching force and obtaining the flexible polymer solar battery with the wrinkling structure. The flexible polymer solar battery has the advantages that the sunlight utilization rate is high, the photoelectric conversion efficiency is high, the preparation process is simple and convenient, the mechanical stability is good, large-scale industrial preparation can be realized and the application prospect is wide.

The invention provides water-soluble poly(3,4-ethylenedioxythiophene) and a preparation method for a conductive coating thereof. The method comprises the following steps of: adding 3,4-ethylenedioxythiophene and an oxidant into the aqueous solution of the copolymer of sodium styrene sulfonate and an allyl monomer, regulating a pH value to be 1 to 5 by using a sulfuric acid, and polymerizing the mixture at the room temperature for 16 to 72h to obtain the water-soluble poly(3,4-ethylenedioxythiophene), wherein the oxidant may be ammonium persulfate, potassium persulfate or sodium persulfate; and the allyl monomer may be an acrylic monomer, a methacrylates monomer, hydroxyethyl acrylate , hydroxyethyl methacrylate, polyethylene glycol methacrylate or styrene. The electrical conductivity of the prepared water-soluble poly(3,4-ethylenedioxythiophene) is higher than that of the poly(3,4-ethylenedioxythiophene) generally using a polystyrene sulfonate acid as a dopant. The conductive coating is obtained by mixing the prepared water-soluble poly(3,4-ethylenedioxythiophene) and other water-based emulsion coatings or water-soluble polymers, and has the characteristics of high transparency and high electrical conductivity.

The invention discloses a coal water slurry addition agent, a preparation method thereof and coal water slurry based on the same. The addition agent comprises the following components in percentage by weight: 55-90% of dispersant, 5-44% of stabilizer and 0.1-5% of PH regulator; the dispersant is one or mixture of several of polystyrene sulfonate and polyacrylate; the stabilizer is Arabic gum; and the PH regulator is sulfuric acid, nitric acid, sodium hydroxide or potassium hydroxide. The coal water slurry adopting the addition agent is the coal powder water slurry with the concentration of 68 percent which is prepared by enabling the weight of the addition agent to be 0.5-1.2% of the weight of dry-base coal powder, adding water and stirring well. The coal water slurry addition agent has good dispersibility and stability, the raw materials for preparing the addition agent has wide source and low cost, the preparation method is simple and easy to realize, and the addition agent has wide application range for coal types, low cost, low concentration and good stability. The coal water slurry which is prepared by adopting the addition agent has the apparent viscosity of 760mPa.s and can be stably stored for more than 30 days at 25DEG C and at the shear rate of 100S-1.

The invention discloses a water-based adhesive used in a silicon anode of a lithium ion battery and a preparation method of the silicon anode. The adhesive is one or more than one mixture of carbonylation Beta-cyclodextrin, poly 3 and 4-ethylene dioxy thiophene, polystyrene sulfonate and gum arabic. The invention further relates to the preparation method of the silicon anode. The preparation method comprises the following steps: firstly uniformly dispersing a silicon material, the adhesive and conductive carbon in water; and then coating the mixture on a copper collector to obtain a final product of the silicon anode of the lithium ion battery after drying. According to the adhesive, Beta-cyclodextrin is adopted, so that the solubility of the adhesive in water can be improved after the carbonylation treatment of the Beta-cyclodextrin; at the room temperature and under the condition of 0.05 C, the silicon anode starts to charge and discharge, the first time discharge specific capacity can reach up to 4440.2 mAh / g, the charging specific capacity can reach up to 3238.7 mAh / g, the charge and discharge efficiency is 72.9 percent, the charge and discharge specific capacity in one hour is 1770 mAh / g, and the cycle performance is very stable. The water-based adhesive and the silicon anode provided by the invention have the advantages of low costs, environmental friendliness, obvious effects, good conductivity, good recycling and good application prospects.

A method of making an electrically conductive cotton material by incorporating conductive poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) films into a base cotton substrate by drop casting or dip coating. Unlike most conventional methods that have typically included the use of templates such as metal oxide, carbon and / or silica nanoparticles, the polymerization of PEDOT:PSS in this method is not template-assisted. The amount of PEDOT:PSS used in the fabrication process controls the conductivity and sheet resistance of the conductive cotton material, and can be varied by the number of repeated drop casting or dip coating cycles.

The invention provides a nano dispersed water-based conductive primer for a vehicle bumper and a preparation method thereof. The nano dispersed water-based conductive primer for the vehicle bumper is prepared by using water-based conductive polyaniline and a water-based conductive polymer of poly-3,4-ethylene dioxide thiophene-polystyrene sulfonate as conductive mediums and using CPP (Chlorinatedpolypropylene) modified polyurethane water-based resin as forming resin. The nano dispersed water-based conductive primer for the vehicle bumper can reach the conductance requirement even if less water-based conductive primer which is 1.3-14.2 percent in parts by weight of the total solid of the primer is added. The nano dispersed water-based conductive primer is nano dispersed water-based paint containing no harmful substances, such as toluene, xylene, and the like, thereby causing no pollution to the environment and being an environmental-friendly product.

Antimicrobial and contraceptive compositions and methods which prevent and / or reduce the risk of transmission of sexually transmitted diseases through sexual activity as well as prevent and / or reduce the risk of pregnancy are provided. The compositions contain (1) a matrix-forming agent, (2) a bio-adhesive agent, (3) a buffering agent, (4) optionally a humectant, (5) optionally a preservative, and (6) water; wherein the composition is suitable for application within the vagina; wherein the compositions form a semisolid matrix on contact with ejaculate (thereby trapping ejaculated microbes and spermatozoa); wherein the composition causes hardening of cervical mucus (thereby decreasing the probability of sperm entry); wherein the composition forms a bio-adhesive layer over vaginal surfaces (thereby preventing or reducing the risk of contact of STD-causing microbes with the vaginal surfaces); wherein the composition maintains an acidic vaginal pH of less than about 5 in the presence of semen ejaculated from the male; and wherein the composition does not significantly impair the natural microbiological balance within the vagina. The antimicrobial and contraceptive compositions may also contain additional antimicrobial and / or contraceptive agents (e.g., nonoxynol-9, octoxynol-9, benzalkonium chloride, phosphorylated hesperidins, sulfonated hesperidins, polystyrene sulfonates, substituted benzenesulfonic acid formaldehyde co-polymers, H2SO4-modified mandelic acids, povidone iodine, itraconazole, ketoconazole, metronidazole, clotrimazole, fluconazole, teraconazole, miconazole, tinidazole, iconazole, chloramphenicol, nystatin, cyclopiroxolamine, and the like).

The invention relates to a polymer catalytic membrane containing a palladium metal activity functional layer prepared based on the technology of layer-by-layer self assembly and a preparation method thereof, which belongs to the field of catalytic membranes. According to the invention, polyacrylonitrile (PAN) powder, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) are dissolved in N,N-dimethyl formamide (DMF), and a PAN flat base membrane is prepared by using a phase inversion process; then the PAN membrane is soaked in a NaOH solution for treatment, which allows surface of the membrane to hydrolyze so as to produce carboxyl groups, thereby enabling the surface of the membrane to carry negative electric charges; a polyethyleneimine (PEI) solution and a potassium chloropalladate K2PdCl4 solution are fully mixed and react for a certain period of time so as to obtain a coordination compound of polyethyleneimine-palladium (PEI-Pd(II)); the treated flat base membrane is alternatively soaked in a solution containing the PEI-Pd(II) coordination compound and a polystyrene sulfonate (PSS) solution for self-assembly of functional layers on the surface of the membrane, and the amount of the assembled layers is controlled; and finally, the membrane obtained after assembly is soaked in a potassium borohydride KBH4 solution, Pd(II) is reduced to be Pd0, and the PAN catalytic membrane containing the palladium metal particle active layer is prepared.

The invention relates to a preparation method for graphene-based three-element composite transparent conductive thin-film. The three-element composite film comprises graphene, silver nanowires and poly(3,4-ethylenedioxy thiophene): polystyrene sulfonate. Graphene has advantages of excellent optical and electrical properties and low cost. The size of a graphene sheet obtained on the basis of reduction of oxidized graphene, chemically reduced graphene, stripped graphene and other precursors is too small, and the graphene sheet has multiple structural defects so that resistance of the graphene thin-film is much higher than that of a commercial indium tin oxide thin-film. According to the method, a mode that the silver nanowires, poly(3,4-ethylenedioxy thiophene): polystyrene sulfonate and graphene are composite is adopted so that photoelectric performance of the graphene-based transparent conductive thin-film is enhanced. The treatment process based on liquid phase dispersion can be applied to large-scale production, and the material also has flexibility so that the material can be used as substitute material of indium tin oxide to be applied to a flexible transparent device.

A coating liquid for hole injection and transport layers improves the injecting property of the coating liquid when it is injected by an injection device and light-emitting uniformity of an organic electroluminescent element, reduces leak current, and improves light-emitting efficiency. The coating liquid for hole injection and transport layers is a coating liquid for hole injection and transport layers in an organic electroluminescent element, wherein the coating liquid for hole injection and transport layers contains poly(3,4-ethylenedioxythiophene), polystyrene sulfonate, and (poly)alkylene glycol alkyl ether.

The invention relates to the field of sensors, and discloses a preparation method of a silver nanowire modified flexible fiber sensor electrode. A flexible conductive fiber is prepared with a solution mixing method, wherein SBS (styrene-butadiene-styrene) is taken a as flexible substrate, poly 3,4-ethylenedioxythiophene-polystyrene sulfonate-graphene is taken as a conductive material, the electrode is modified with a silver nanowire, and the silver nanowire modified flexible fiber sensor electrode containing SBS / graphene / poly 3,4-ethylenedioxythiophene-polystyrene sulfonate is obtained. The sensor electrode can be applied in the fields of medical biological monitoring, environment and hygiene monitoring and the like.

The invention relates to an organic photovoltaic battery with a cesium acetate cathode modification layer and a preparation method thereof, belonging to the field of organic photoelectricity. The organic photovoltaic battery comprises a transparent conducting substrate 1, an anode buffer layer poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) 2, an active layer 3, a cathode modification layer 4 and a metal back electrode layer 5. The preparation method comprises the following steps: cleaning the transparent conducting substrate, and drying; spin coating the PEDOT:PSS anode buffer layer 2 on the transparent conducting substrate 1, and drying; spin coating the organic active layer 3 on the PEDOT:PSS anode buffer layer 2, and drying; depositing the cesium acetate cathode modification layer 4 on the active layer 3; and coating the metal back electrode layer 5 by a thermal evaporation method on the cesium acetate cathode modification layer 4. In the invention, the cesium acetate is applied as a cathode modification layer of an organic photovoltaic device by a thermal evaporation or solution spin coating method. Compared with the traditional inorganic salt lithium fluoride (LiF) cathode modification layer, the cesium acetate organic salt as the cathode modification layer can form better interfacial contact with the active layer, thereby remarkably improving the photoelectric conversion efficiency and stability of the organic photovoltaic battery devices.

The invention provides a self-powered flexible piezoresistive pressure sensor based on a biofilm, and a preparation method and application thereof; the self-powered flexible piezoresistive pressure sensor is of a laminated structure, and is provided with a polyimide adhesive tape layer, poly (3, 4-ethylenedioxythiophene)- polystyrene sulfonate conductive polymer film resistance layer, a copper foil, a carbon-nanotube- modified egg film, a polydimethylsiloxane film and a poly (3, 4-ethylenedioxythiophene)- polystyrene sulfonate-modified egg film sequentially from one side to other side. One surface of the copper foil is provided with a microstructure, and the microstructure is arranged towards the carbon-anotube- modified egg film; the egg film is an outer egg shell membrane; an irregular microstructure is processed on one side of the polydimethylsiloxane film, and a silver electrode is arranged on the other side of the polydimethylsiloxane film. A pressure sensor is ultrahigh in sensitivity, short in response and recovery time, wide in sensing range and capable of generating energy by itself.

The invention relates to a flexible polymer solar battery with a wrinkling structure, comprising a transparent electrode, a cavity transporting layer, photo-activation layer materials, an electron transporting layer and a metal electrode, wherein the photo-activation layer materials comprise a donor material and an acceptor material; the transparent electrode is made of graphene / PEDOT(poly(3,4-ethylenedioxythiophene):PSS(polystyrene sulfonate) / PET(polyethylene terephthalate) composite film; the hole transporting layer is made of a PEDOT:PSS film; an electron donor is made of P3HT; an electron acceptor is made of graphene / PEDOT:PSS composite particles; the electron transporting layer is made of a zinc-oxide film; and the metal electrode is made is silver. The flexible polymer solar battery is prepared by the following steps of: adopting an ink-jet printer to print a graphene / PEDOT:PSS transparent conducting layer, the hole transporting layer, active-layer materials, the electron transporting layer and metal slurry on a pre-stretched PET film in sequence, carrying out drying treatment on the materials under the temperature being 50-100 DEG C, then removing pre-stretching force and obtaining the flexible polymer solar battery with the wrinkling structure. The flexible polymer solar battery has the advantages that the sunlight utilization rate is high, the photoelectric conversion efficiency is high, the preparation process is simple and convenient, the mechanical stability is good, large-scale industrial preparation can be realized and the application prospect is wide.

The invention relates to a high-safety and high-energy density lithium ion battery. The battery comprises a positive electrode, a negative electrode, a separator, a diaphragm, tabs and a shell, wherein the diaphragm is used for separating the positive electrode from the negative electrode, a battery cell is formed by winding or lamination, the tabs are respectively welded on a positive pole plateand a negative pole plate, the battery is obtained by packaging the battery cell in a battery shell, injecting the electrolyte and sealing, lithium iron phosphate, lithium manganese, lithium cobaltateand a Ni-Co-Al or Ni-Co-Mn ternary material are used as main materials of a positive active substance, nanometer carbon tube-coated indium oxide, polyaniline, graphene, polystyrene sulfonate and a binding agent are used as auxiliary materials of the positive active substance, and the tabs of the positive electrode and the negative electrode are coated with PTC coating layers. The PTC coating layer is coated at a tab position of the lithium battery, so that open circuit of the battery can be achieved by protection of the PTC coating layer at an initial period of thermal runaway, further generation of thermal runaway is controlled, and a dangerous state such as fire and explosion of the battery is prevented.

The invention relates to a polystyrene sulfonate-containing gel preparation for therapy of hyperpotassemia, wherein the particle size of polystyrene sulfonate is controlled within the range of at least 5-100 mum, the viscosity of its solution before gelation is adjusted depending on the particle size by adding a thickening agent, and the polystyrene sulfonate particles after gelation is uniformly dispersed therein. More preferably, a water-displacing agent is contained, whereby the amount of water in the preparation is reduced. This gel preparation does not cause a sense of foreign matter or a sense of roughness in the oral cavity upon ingestion and intake, thus making it unnecessary to drink water for ingestion, and further its water content is low, so that control of water intake is made easy, even in the case of a patient with renal insufficiency who is subjecting to restriction in intake of water to significant improve the quality of life of the patient.

The invention discloses a high-sensitivity uncooled infrared detector. In the detector, a copolymer of polyvinylidene fluoride and trifluoroethylene is used as a pyroelectric material and grown on a polyester material substrate, on which a metal bottom electrode is prepared, by a Langmuir-Blodgett method; then a top metal electrode is grown on the surface of the material to form a capacitor structure; and a poly-3,4-ethylenedioxythiophene / polystyrene sulfonate conductive polymer is grown on the top electrode to serve as an infrared absorbing layer.

The invention relates to the technical field of graphene, and provides a method for manufacturing a graphene composite electrode. The method includes steps of respectively providing poly(3,4-ethylenedioxythiophene), polystyrene sulfonate aqueous solution and aqueous solution dispersion containing graphene and cationic surfactants; immersing current collectors into polyethylenimine aqueous solution to obtain current collectors with surfaces which are subjected to charge processing; immersing the current collectors with the surfaces which are subjected to charge processing into the poly(3,4-ethylenedioxythiophene), the polystyrene sulfonate aqueous solution and aqueous solution dispersion containing the graphene and the cationic surfactants, and then sequentially immersing the current collectors into the poly(3,4-ethylenedioxythiophene), the polystyrene sulfonate aqueous solution and aqueous solution dispersion containing the graphene and the cationic surfactants again to obtain a graphene polymer modified electrode; drying the graphene polymer modified electrode under the vacuum condition at the temperature ranging from 100 DEG C to 180 DEG C to obtain the graphene composite electrode. The method has the advantages that a technology for manufacturing the graphene composite electrode is simple, operation is simple and feasible, and the graphene composite electrode can be easily manufactured on a large scale.

The invention relates to a preparation method of carbon nano tube co-reinforced conducting polymer hydrogel. The method comprises the following steps that: (1) epoxidized carbon nano tubes are dissolved into an amino-anthraquinone solution, and electroactive molecule grafted carbon nano tubes can be prepared through utilizing a reflux reaction, and stirring is carried out; (2) the electroactive molecule grafted carbon nano tubes prepared in the step (1) are added into a polystyrene sulfonate solution, and the mixture of the electroactive molecule grafted carbon nano tubes and the polystyrene sulfonate solution is stirred; (3) a conducting polymer monomer is added into the solution obtained in the step (2), and the mixture of the conducting polymer monomer and the solution is stirred; (4) an oxidant solution is added into the solution obtained in the step (3); and the mixture of the oxidant solution and the solution stand and react, and an obtained product is purified and balanced in distilled water, so that the carbon nano tube reinforced conducting polymer hydrogel can be obtained. Compared with a pure conducting polymer hydrogel, the carbon nano tube reinforced conducting polymer hydrogel has high conductivity and specific capacitance.

The invention discloses a laser medical film and a preparation method thereof. The PET medical film is prepared directed to the laser printing demand, the film base is prepared from high temperature resistant PET plastics and is subjected to corona treatment, an anti-static layer is coated on one side of the film base and is prepared from polystyrene sulfonate, a laser ink absorption coating is coated on the other side of the film base, and the laser coating contains a nanoscale aluminum oxide powder dispersion liquid. The laser medical film provided by the invention has the advantages of fast printing speed, good imaging effect, high temperature resistance, good antistatic effect, smooth paper feeding, no jamming, applicability to doctor handwriting signing, difficult color fading, and long preservation period.

The invention discloses a flexible organic electroluminescent device. The flexible organic electroluminescent device comprises a flexible substrate, an anode layer, a hole transporting layer, a light emitting layer, an electronic transmitting layer, an electronic injection layer and a cathode layer which are sequentially overlapped, wherein the anode layer is made of materials comprising graphene, poly 3,4-ethylenedioxythiophene and polystyrene sulfonate at the mass ratio of (0.003-0.158):2:1. The invention also discloses a preparation method for the flexible organic electroluminescent device. According to the invention, the technical defect that a current flexible organic electroluminescent device taking high-molecular PEDOT / PSS as the anode materials is low in light efficiency is overcome; by doping the graphene in appropriate ratio in the anode material, the conductibility of the anode material is increased, the surface resistance of the anode material is reduced, and accordingly, the light efficiency of the flexible organic electroluminescent device is improved. The preparation method is simple in process, low in raw material cost, and suitable for large-scale industrial production.

Disclosed are mixtures comprising aqueous thiophene / anion dispersions, such as polythiophene / polystyrene sulfonate aqueous dispersions, and additives, as well as coatings produced therefrom. Coatings produced from these mixtures yield significant improvements in electrical conductivity without the need for a high temperature treatment as compared to coatings produced from unmodified aqueous polythiophene dispersions (e.g., Baytron®P) and to coatings produced from state-of the-art aqueous polythiophene-additive mixtures. These conductivity improvements are achieved without detracting from the optical transparency of the coating. Because characteristics of volume resistivity of less than 6.6 ohm·cm and optical transmission greater than 80% are important for conductive coating applications, coatings produced from the mixtures of the present invention have significant advantages over coatings produced from the state-of-the-art mixtures in many applications.Also disclosed are a variety of substrates or articles of manufacture coated with the mixtures of the present invention for use in various applications where a combination of high electrical conductivity, excellent optical transparency and low temperature processing are important, such as electronic and optoelectronic devices.

The invention belongs to the technical field of lead-acid battery and provides a high-performance anti-corrosion compound coating grid of a lead-acid battery and a preparation method thereof. The preparation method comprises the following steps of: coating a macromolecule conducting layer on the surface of a lead-acid battery grid; mixing 3,4-ethylenedioxythiophene, graphene oxide and polystyrene sulfonate, and then mixing with pure water and ball-milling, and preparing into a polymer aqueous solution; soaking the grid in the polymer aqueous solution and drying, thereby preparing into a compound coating grid. The 3,4-ethylenedioxythiophene polystyrolsulfon acid material has the characteristics of high conductivity, high mechanical strength and high anti-corrosion stability; when the compound coating grid serves as the lead-acid battery grid coating, the function of transmitting electrons is achieved, the grid can be protected and the grid is prevented from a corrosion phenomenon in the charge-discharge cycle process of the lead-acid battery; the graphene oxide is utilized to enhance the electrical conductivity and dispersity of the coating, so that the problem of ending of the service life of the battery resulted from the grid corrosion of the lead-acid battery is solved.

The invention discloses a preparation method of a conductive hydrogel sensor based on polyacrylamide-silk fibroin, belonging to the field of flexible wearable electronic devices. The preparation method comprises the following steps: cutting cocoon shells obtained after pupa removal of mulberry silk worm cocoons into small pieces, putting the small pieces into a boiled sodium bicarbonate solution for boiling, and putting dried silk fibroin fibers obtained after drying into a lithium bromide solution for dissolving and dialysis so as to obtain a silk fibroin solution; dissolving acrylamide intodeionized water; then adding ammonium persulfate and N,N'-methylene bisacrylamide, and carrying out uniform mixing under stirring to obtain a polyacrylamide solution; sequentially adding the silk fibroin solution, a graphene oxide solution and a poly(3,4-ethylenedioxythiophene) / polystyrene sulfonate solution into the polyacrylamide solution, carrying out uniform mixing, injecting the obtained mixture into a mold, and carrying out heating to obtain the conductive hydrogel; and connecting wires to two ends of the conductive hydrogel to obtain the conductive hydrogel sensor. The conductive hydrogel sensor is simple in method, high in elasticity, wide in response range, suitable for large-scale production, sensitive in reaction and capable of testing stretching and compressing signals at the same time.

The invention relates to the field of lithium ion batteries, and discloses a PEDOT: PSS / CMC composite binder and a preparation method and application thereof. The composite binder is prepared from poly (3, 4-ethylenedioxythiophene): polystyrene sulfonate / hydroxymethyl cellulose (PEDOT: PSS / CMC) in a cross-linked state; the prepartion raw materials of the composite binder includes PEDOT: PSS and CMC in a mass ratio of (0.1-10): 1. When the composite binder is used for preparing a silicon-based negative electrode of a lithium ion battery, functional groups in the binder can be effectively bondedwith silicon, so that the bonding force with a silicon-based material is improved, a more stable SEI film can be formed to reduce direct contact with an electrolyte, the amount of byproducts is reduced, and the overall structure of the electrode is more stable. The silicon-based negative electrode of the lithium ion battery prepared from the binder can keep complete morphology after circulation,and the cycling stability of the battery can be improved.

An electrically conductive polymer film is presented. The electrically conductive polymer film includes a polymeric base material, a plurality of electrically conductive nanoparticles randomly oriented within the polymeric base material, and a pair of electrodes electrically interconnected with the plurality of electrically conductive nanoparticles. The electrodes are configured to be connected to an electrical power source. The polymeric base material may e.g. be polyethylene, polypropylene, polyvinyl chloride, polycarbonate, acrylic, polyester, and / or polyamide. The plurality of electrically conductive nanoparticles may be metallic nanowires, metal-plated nanofibers, carbon nanotubes, graphene nanoparticles, and / or graphene oxide nanoparticles. The plurality of electrically conductive nanoparticles may also or alternatively include an inherently conductive polymer such as polylanine, 3,4-ethylenedioxythiophene, 3,4-ethylenedioxythiophene polystyrene sulfonate, and / or 4,4-cyclopentadithiophene. The plurality of electrically conductive nanoparticles may be substantially uniformly distributed throughout the polymeric base material.

The invention discloses a method for preparing a conductive polymer composite film and belongs to the technical field of electronic function materials. The method comprises the following steps of: adsorbing a polydiallyl dimethyl ammonium chloride film layer on a substrate, electrostatically adsorbing a poly(3,4-ethylenedioxythiophene) (PEDOT) or PEDOT-polystyrene sulfonate (PSS) film layer on the polydiallyl dimethyl ammonium chloride film, and alternately repeating the operation to obtain the conductive polymer composite film. The prepared conductive polymer composite film has high conductivity, high specific volume and high electrochemical performance, and the preparation method is simple and easy to operate and can be applied to electrodes of batteries, electrochemical capacitors and the like.

The invention relates to the field of gelatin-based biomedical materials, in particular to a preparation method and application of a bionic electronic skin medical stent with a self-repairing function. The method is characterized in that gelatin extracted from an acellular fetal calfskin dermal matrix with good biological safety is used as a raw material; then, conducting polymer poly (3, 4-ethylenedioxythiophene) with good biocompatibility is used; compounding a polystyrene sulfonate (PEDOT: PSS) solution with self-made acidified carbon nanotubes (H-MWCNTs); the hydrogel stent with a multifunctional three-dimensional network space structure is obtained through crosslinking of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC), and the hydrogel is good in biocompatibility and high in mechanical strength, has both self-repairing performance and tissue regeneration inducing repairing performance and can be widely applied to skin wound repairing treatment.