1035results about "Electrically-conductive paints" patented technology

The present application relates to a kind of high weather resistance and coating adhesion sunscreen coating and its preparation method, belong to sunscreen coating technical field;The present application uses the modifier with disulfide bond and polymerizable double bond to modify polyacrylate emulsion, significantly improve the flexibility of polyacrylate molecular chain after modification, reduce solidification shrinkage stress and internal stress, improve the coating adhesion of sunscreen coating of hard filler to matrix resin, it can also form stable chemical bonding between polyacrylate resin and titanium dioxide, provide stable stress transfer path, reduce the cracking and warping of coating, in addition, the modifier of the present application has good heat resistance aromatic ring structure, using the modifier of the present application can improve the heat resistance of sunscreen coating without introducing additional modifier.

The invention relates to the technical field of protective film preparation, and particularly discloses an antistatic silica gel protective film and a preparation method thereof.The protective film comprises a base material layer and an antistatic coating coated on the surface of the base material layer; the base material layer is prepared from methyl vinyl silicone rubber, modified fumed silica, a compound antistatic agent A and a vulcanizing agent, and the antistatic coating is prepared from a compound antistatic agent B and water-based acrylic resin. The preparation method comprises the following steps: banburying, calendering and vulcanizing a compound antistatic agent A, methyl vinyl silicone rubber and modified fumed silica to form the base material layer; and finally, mixing the compound antistatic agent B with water-based acrylic resin to prepare an antistatic coating solution, coating the surface of the base material layer with the antistatic coating solution, and drying and curing to obtain a finished product. The silica gel protective film prepared by the invention has excellent antistatic property, mechanical property, adhesive force and high light transmittance, and is suitable for the fields of electronic equipment screens, optical lenses and the like.

The invention discloses a PVDC (polyvinyl dichloride) coating high-brightness BOPP (biaxially-oriented polypropylene) cigarette film and a preparation method thereof, and belongs to the technical field of packaging materials. The smoke film comprises a BOPP (biaxially-oriented polypropylene) base material layer and three layers of gradient PVDC (polyvinyl dichloride) coatings coated on the surface of the BOPP base material layer, wherein the three layers of gradient PVDC coatings sequentially comprise a bottom adhesive layer, a middle barrier layer and a surface functional layer from bottom to top. The bottom adhesive layer adopts PVDC emulsion and an organic silane coupling agent KH-560, so that the binding force with a base material is enhanced; the middle barrier layer adopts high-molecular-weight PVDC and nano silicon dioxide to form a maze effect to provide main barrier performance; and the surface functional layer adopts PVDC, an acrylate copolymer and an antistatic agent, so that the glossiness and the processability are improved. The preparation method adopts an ultrasonic-assisted coating technology, an electrostatic field-assisted leveling technology, a four-stage drying technology and a dynamic tension compensation technology. The prepared product coating is uniform, compact and free of defects, the oxygen permeability is as low as 4.8-9.2 cubic centimeters per square meter per 24 hours per standard atmospheric pressure, the glossiness reaches 86-95 GU, a traditional double-layer packaging structure can be directly replaced, and the cost is reduced by 20% or above.

The invention relates to the technical field of coatings, in particular to an antistatic film material and a preparation method thereof.The antistatic film material comprises a film base material layer and a photocuring antistatic coating coated on the film base material layer, and the film base material layer is a polyethylene glycol terephthalate film; the light-cured antistatic coating is prepared from the following raw materials: water-soluble polyurethane acrylic resin, water-soluble acrylic resin, modified polyhedral oligomeric silsesquioxane, a composite conductive material, a photoinitiator, a flatting agent, a defoaming agent and water; the modified polyhedral oligomeric silsesquioxane and the composite conductive material are added into the coating base material to modify the coating base material, the coating has excellent antistatic performance and good mechanical property after being cured by ultraviolet light, and the special structure of the composite conductive filler and the compounding of the composite conductive filler and the modified polyhedral oligomeric silsesquioxane have excellent antistatic performance and good mechanical property. The anti-static performance reduction caused by low humidity and organic matter migration is avoided.

The invention belongs to the field of batteries, and particularly relates to a solid-state polymer electrolyte composite membrane, a preparation method thereof and a solid-state battery. The solid polymer electrolyte composite membrane comprises an MOF functional layer, an anti-reduction coating and an anti-oxidation coating, wherein the anti-reduction coating and the anti-oxidation coating are arranged on the two sides of the MOF functional layer respectively; the MOF functional layer comprises an intermediate layer base material formed by an organic polymer, and an inorganic solid electrolyte and an MOF-based ionic conductor MOF-ILE which are dispersed in the intermediate layer base material; the MOF-based ionic conductor MOF-ILE comprises an MOF material, an ionic liquid and a lithium salt. The electrolyte membrane can meet the multifunctional requirements of all-solid-state batteries, including high ionic conductivity of the electrolyte membrane, good electrode-solid electrolyte membrane interface compatibility, high electrochemical window, excellent mechanical strength and electrochemical stability, so that the electrical performance of the all-solid-state batteries is remarkably improved.

The invention discloses an adhesive tape with high stripping stability and a preparation process thereof. The adhesive tape comprises a PET (Polyethylene Terephthalate) base material subjected to corona treatment, an acrylic acid pressure-sensitive adhesive layer, a release layer and an antistatic liquid coating. The acrylic pressure-sensitive adhesive layer is composed of acrylate monomers, saturated polyester resin, bisphenol F, bisphenol A epoxy resin and amino resin. The preparation process comprises the steps of corona pretreatment of the polyethylene glycol terephthalate base material, coating of the antistatic liquid, coating of the pressure-sensitive adhesive, compounding of the release layer and curing treatment. The stripping force change rate of the adhesive tape after damp-heat aging and low-temperature aging is smaller than 5% and is far lower than the industrial standard, and the adhesive tape has excellent stripping stability, antistatic property and weather resistance and is suitable for the fields of electronic product protection, automobile paint spraying shielding and the like.

The invention discloses a battery, a positive pole piece, slurry, a dispersing agent, a preparation method and electric equipment. The battery comprises a positive electrode plate, the positive electrode plate comprises a current collector and a positive electrode material layer arranged on at least one side of the current collector, the positive electrode material layer comprises a positive electrode active material and a dispersant, the dispersant comprises a polyester compound, the polyester compound comprises a structural unit A and / or a structural unit B, the chemical formula of the structural unit A is shown in the specification, and the chemical formula of the structural unit B is shown in the specification. R1 and R2 are respectively selected from at least one of C0, a C1-C18 alkyl group and a C6-C18 aryl group; and R3 and R4 are respectively selected from at least one of H, C1-C18 alkyl groups, C6-C18 aryl groups and ester groups. The dispersing agent can improve the dispersibility of the positive electrode slurry and improve the uniformity and flexibility of the positive electrode plate, so that the battery has relatively high capacity and stability.

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

The invention discloses superfine copper powder and a preparation method and application thereof, and belongs to the technical field of copper powder.The preparation method of the superfine copper powder comprises the following steps that a micro-channel reactor is provided, and the micro-channel reactor comprises a micro-mixer and a micro-reactor which are connected with each other; a copper salt solution, a reducing agent solution and a sodium hydroxide solution are injected into a micro-channel reactor to be evenly mixed, a mixed solution is obtained and then enters the micro-channel reactor to be subjected to a reaction, discharging is conducted, and the superfine copper powder is obtained. The injection flow rate ratio of the sodium hydroxide solution to the copper salt solution to the reducing agent solution is (0.5-2): (0.8-1.2): (0.8-1.2). According to the method, the uniformity and the preparation efficiency of the superfine copper powder are remarkably improved, meanwhile, the reaction time is greatly shortened, the yield and the purity of the superfine copper powder are remarkably improved, continuous and efficient preparation of the superfine copper powder is achieved, and the method has wide application prospects.

The embodiment of the invention provides antistatic coating slurry, a preparation method of the antistatic coating slurry and a preparation method of an antistatic coating. The antistatic coating slurry is prepared from the following components in parts by mass: 100 parts of resin matrix dispersion liquid, 1-15 parts of a macromolecular antistatic agent and 0.1-0.5 part of a cross-linking agent, wherein 100 parts of the resin matrix dispersion liquid comprises the following components in parts by mass: 95-99.5 parts of a resin matrix and 0.5-5 parts of a physical antistatic agent. The basic antistatic performance is provided through the macromolecular antistatic agent, the addition amount of the physical antistatic agent is reduced, it is ensured that the coating keeps high transparency and light-color appearance, the physical antistatic agent constructs an efficient conductive network under the low addition amount, and resistivity fluctuation caused by temperature and humidity changes is inhibited; the cross-linking agent improves the hardness, the wear resistance and the bending resistance of the formed antistatic coating and maintains the continuity of a conductive path; and the coating can meet the protection requirements in the aspects of light transmission, radiation protection, static electricity resistance, mechanical durability and the like.

The invention provides a secondary battery, a power utilization device and a binder, the secondary battery comprises a positive pole piece, a negative pole piece and an isolating membrane, the negative pole piece comprises a negative current collector and a negative membrane layer arranged on at least one surface of the negative current collector; the negative electrode film layer comprises a negative electrode active material and a first binder; the mass ratio of the negative electrode active material in the negative electrode film layer is 96%-98.4%; the mass ratio of the first binder in the negative electrode film layer is 0.5%-3%; the first binder includes a polymer including-COOM,-CONH2,-CN, and-COOR, where M includes an alkali metal, and R includes a substituted or unsubstituted C1-C20 alkyl group. The secondary battery in the present application has improved energy density and does not deteriorate processability.

This invention discloses a thermally conductive and electromagnetically shielding multilayer composite film, its preparation method, and its applications. The thermally conductive and electromagnetically shielding multilayer composite film of this invention comprises an insulating and thermally conductive layer, a magnetic shielding layer, a conductive shielding layer, and an insulating and thermally conductive layer stacked sequentially. The insulating and thermally conductive layer is a cellulose film containing thermally conductive fillers; the magnetic shielding layer is a cellulose film containing magnetic fillers and expanded microspheres; and the conductive shielding layer is a cellulose film containing conductive fillers and expanded microspheres. The thermally conductive and electromagnetically shielding multilayer composite film of this invention has advantages such as excellent in-plane thermal conductivity, excellent electromagnetic shielding performance, high mechanical strength, and small thickness. Furthermore, its preparation process is simple and environmentally friendly, and it has broad application prospects in fields such as 5G communication, consumer electronics, new energy batteries, and national defense.

The invention discloses a self-repairing anticorrosive paint, a preparation method thereof and an anticorrosive application on the surface of a hardware fitting, the self-repairing anticorrosive paint is composed of a two-component system of a matrix component and a functional component, a composite conductive network formed by multi-walled carbon nanotubes is introduced, ion migration and electric field distortion under a strong electric field can be inhibited, and the electrochemical corrosion rate is reduced; the photo-thermal response type microcapsule can realize near-infrared light triggered in-situ repair of micron-sized cracks, and corrosion medium permeation is avoided; a gradient interface strengthening structure and a nano reinforced phase formed by the nano silicon dioxide can improve the cracking resistance and wear resistance of the coating in a wide temperature range (-50 DEG C to 150 DEG C) and under mechanical vibration, the self-repairing anticorrosive coating is extremely low in corrosion rate in a strong electric field environment, has wide temperature range cracking resistance and micro-crack in-situ repairing performance, and can be applied to the field of high-temperature-range self-repairing anticorrosive coating. And the problems of coating interface stripping, lack of self-repairing capability, high maintenance cost and the like of key metal materials of the ultrahigh-voltage power transmission and transformation equipment in complex climatic environments such as high humidity and high salt are solved.

The invention provides a hydrogel-based radiation refrigeration moisture power generation material and a preparation method and application thereof, and belongs to the technical field of moisture power generation materials.The hydrogel-based radiation refrigeration moisture power generation material comprises a nano carbon black layer, a conductive hydrogel layer and a titanium dioxide layer which are sequentially stacked; the conductive hydrogel layer comprises a hydrogel matrix, a conductive filler and a temperature-sensitive material; the temperature-sensitive material comprises at least one of poly (N-isopropylacrylamide), a polyethylene glycol and polylactic acid copolymer and vanadium oxide; the cross section of the hydrogel-based radiation refrigeration moisture power generation material is of a W-shaped structure. The conductive hydrogel layer is of a three-dimensional network structure with conductivity and temperature-sensitive characteristics; the titanium dioxide layer realizes efficient sunlight reflection, the nano carbon black layer enhances heat conduction and conductivity, and the W-shaped structure promotes moisture flow and circulation; the multifunctional power generation device prepared based on the hydrogel-based radiation refrigeration moisture power generation material has good radiation refrigeration and moisture power generation performance, and is excellent in stability and durability.

The invention relates to the technical field of anti-corrosion coatings, in particular to a nano modified polysiloxane heavy anti-corrosion coating and a preparation method thereof.The nano modified polysiloxane heavy anti-corrosion coating is prepared from, by weight, 100 parts of polysiloxane resin, 5-15 parts of amino silane coupling agent, 20-40 parts of mica iron oxide, 1-5 parts of auxiliaries, 10-30 parts of solvent, 3-10 parts of biomimetic mineralization enhancer and 1-5 parts of additive; the biomimetic mineralization enhancer is prepared through dopamine modification and tetraethoxysilane mineralization treatment of nano diatomite, the compactness, adhesive force and physical shielding performance of the coating are remarkably improved, corrosion medium permeation can be effectively blocked, the additive is prepared from silver nanowires and polyvinylidene fluoride through electrostatic spinning, the coating is endowed with conductivity, and the corrosion resistance of the coating is improved. According to the invention, damage self-sensing and early warning are realized, so that the prepared coating has excellent salt mist resistance, wear resistance, impact resistance and long-acting corrosion resistance, is suitable for metal protection in a harsh corrosion environment, and has a wide application prospect.

The invention discloses a multifunctional composite coating with high photothermal conversion efficiency and a preparation method thereof, and belongs to the technical field of functional coating materials. The problems that an existing carbon-based photo-thermal material is large in reflection loss, poor in mechanical durability and single in function are solved. The coating is formed by compounding a zinc oxide microflower framework or a zinc oxide microflower-micro-nano particle multilevel structure framework, a carbon-based nano material attached to the surface of the framework and a surface modifier. The preparation method of the coating comprises the following steps: synthesizing zinc oxide microflowers by a hydrothermal method; the preparation method comprises the following steps: jointly dispersing the graphene oxide, a carbon material and a micro-nano material in a solvent containing a surface modifier to form a coating solution, finally spraying, brushing or spin-coating the coating solution on a substrate, and curing to obtain the composite material. The coating integrates the functions of efficient photothermal conversion, stable super-hydrophobicity, long-acting corrosion prevention and active anti-icing / deicing, has excellent mechanical strength and wear resistance, and is low in raw material cost, simple in process and suitable for large-scale preparation.

The invention discloses a battery intelligent thermal management coating based on reversible Diels-Alder reaction and a preparation method and application thereof.The coating is of a multi-layer composite structure and comprises a basic binding layer, a functional thermal management layer and a protective isolation layer, the functional thermal management layer is composed of a functional polymer grafted with furan and maleimide groups, the reverse reaction temperature of the reversible Diels-Alder reaction is 80-120 DEG C, the temperature of the functional thermal management layer is 20-30 DEG C, and the temperature of the protective isolation layer is 20-30 DEG C. And the heat absorption capacity is 500-800J / g. The preparation method comprises the following steps: preparing slurry containing the functional polymer, coating a battery assembly with the slurry, and curing at 80-100 DEG C to form a coating. The coating can be applied to a battery electrode, an electrochemical energy storage device and a battery module, instantaneously absorbs heat through reverse reaction at the early stage of thermal runaway of the battery, and automatically resets after the temperature is reduced, so that circulating reuse is realized. The material is high in heat absorption efficiency, high in response speed, compatible with the electrochemical performance of the battery, capable of effectively reducing the thermal runaway risk of the battery, and suitable for various electrochemical energy storage devices such as lithium ion batteries and sodium ion batteries.

The invention relates to the technical field of coating preparation, and provides a super-hydrophobic oleophobic epoxy anticorrosive wear-resistant powder coating and a preparation method thereof. According to the coating, phenolic epoxy resin and bisphenol A epoxy resin are used as matrix resin, phenolic hydroxyl resin is used as a curing agent, super-hydrophobic / oleophobic carbon nanotubes are used as a modifier, ethylene-tetrafluoroethylene copolymer and polyamide resin are used as flexibilizers, super-hydrophobic / oleophobic nano silicon dioxide powder and super-hydrophobic hollow glass beads are used as fillers, and the super-hydrophobic / oleophobic nano silicon dioxide powder and the super-hydrophobic hollow glass beads are used as fillers. The super-hydrophobic and oleophobic epoxy anti-corrosion wear-resistant powder coating is prepared by taking an inorganic pigment as a coloring agent through the steps of material preparation, premixing, melt extrusion, tabletting, cooling, crushing and sieving under the cooperation of various functional assistants. The powder coating is subjected to electrostatic spraying (40-70 KV), the coating film thickness is about 350 microns, and the powder coating is cured into a film after being subjected to hydrophobic / oleophobic min at 180 DEG C / 5 min or 230 DEG C / 1.5 under the baking condition of 180 DEG C / 5 min. The contact angles of oil drops and water drops can reach 160 degrees and 161 degrees respectively, and the rolling angles are 2 degrees and 1 degree respectively.

The invention relates to the technical field of electromagnetic shielding materials, and particularly discloses an electromagnetic shielding composite material with active and passive infrared stealth functions and a preparation method thereof. The composite material comprises an electromagnetic wave reflecting layer and a plurality of electromagnetic wave absorbing layers. The electromagnetic wave reflecting layer is made of silver-plated bacterial cellulose, and efficient reflection of electromagnetic waves is achieved through high conductivity of the silver-plated bacterial cellulose. The electromagnetic wave absorbing layer is formed by compounding bacterial cellulose, multi-walled carbon nanotubes and core-shell magnetic nanoparticles, and the content of the multi-walled carbon nanotubes is gradually decreased and the content of the core-shell magnetic nanoparticles is gradually increased from the position close to the electromagnetic wave reflecting layer to the outside, so that a gradient structure is formed; the gradient design can improve surface impedance matching, promote electromagnetic waves to enter the material, and enhance electromagnetic loss through an interlayer multiple reflection-absorption process. The material disclosed by the invention has the functions of efficient electromagnetic shielding and active and passive infrared stealth.

The invention relates to the technical field of coatings, in particular to a wear-resistant, sweat-resistant and anti-static coating for spraying the appearance of an electronic product and a preparation method of the wear-resistant, sweat-resistant and anti-static coating. A wear-resistant, sweat-resistant and antistatic coating for spraying the appearance of an electronic product is prepared from the following raw materials in parts by mass: 30-35 parts of modified acrylate resin, 12-15 parts of organic silicon modified epoxy resin, 10-12 parts of modified heat-conducting and electric-conducting filler, 1.5-2.0 parts of a coupling agent, 1-2 parts of a dispersing agent, 0.5-0.8 part of a defoaming agent, 2-3 parts of a flatting agent, 6-8 parts of a reactive diluent and 65-70 parts of isopropanol. The wear-resistant, sweat-resistant and anti-static coating prepared by the invention not only has excellent heat dissipation performance, anti-static performance, wear resistance, scratch resistance, sweat resistance, anti-pollution capability and the like, but also has good adhesive force, environmental protection property and safety, and is suitable for the field of appearance spraying of electronic products.

A semiconducting tape for a power or signal carrying cable or a conductor assembly thereof is described herein. The semiconducting tape may include a nonwoven sheet and a semiconductive composition disposed on the nonwoven sheet. The semiconductive composition may include a resin or a polymer and a conductive material disposed in the resin or the polymer. The nonwoven sheet may include a first plurality of fibers and a second plurality of fibers, wherein the first plurality of fibers is different than the second plurality of fibers. The semiconducting tape may have a penetration resistance of less than 5% or a penetration resistance of about 400 Newtons (N) or greater.

The invention relates to the technical field of brass materials, in particular to a high-strength and high-toughness brass material and a preparation method thereof.The preparation method comprises the steps that a porous oxide film layer is prefabricated on the surface of brass through plasma electrolytic oxidation, and an oxide film layer doped with double-bond silver-loaded graphene oxide is constructed on the surface of the brass; the preparation method comprises the following steps: firstly, preparing modified MXene, then preparing a photocurable hole sealing coating for hole sealing treatment, introducing double-bond silver-loaded graphene oxide and the modified MXene as fillers into the photocurable hole sealing coating, firstly performing sulfhydrylation on the MXene by using 3-mercaptopropyltriethoxysilane, and then grafting a double-bond-containing bis-benzimidazole ring derivative through light click to obtain the modified MXene; vinyl-terminated polyurethane is used as a cross-linking agent, o-phenyl phenoxyethyl acrylate, butyl acrylate, glycidyl methacrylate and octadecyl acrylate are compounded to serve as an acrylic monomer, a diluent and a solvent are introduced, a complex cross-linked network is constructed, and the service life of the brass material is prolonged.

A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode current collector and a positive electrode mixture layer disposed on the positive electrode current collector. The positive electrode mixture layer contains active material particles having an average particle diameter less than 5 μm, a conductive material, a dispersant, and a binder. The active material particles include composite oxide particles and a surface modification layer formed on surfaces of the composite oxide particles and containing a boron compound. The composite oxide particles are particles of a lithium transition metal composite oxide. The conductive material includes a carbon material. The dispersant includes nitrile group-containing rubber. The binder includes a fluorine-containing polymer.

To provide a method for producing a conductive polymer dispersion liquid in which a conductive composite exhibiting excellent conductivity is dispersed, and a method for producing a conductive laminate using the dispersion liquid.SOLUTION: A method for producing a conductive polymer dispersion liquid comprises a step of adding an oxidizing agent that polymerizes a monomer forming a π-conjugated conductive polymer to a reaction liquid containing a polyanion, the monomer forming the π-conjugated conductive polymer, and an aqueous dispersion medium to cause a polymerization reaction and to form a conductive composite containing the π-conjugated conductive polymer and the polyanion, wherein a ratio represented by absorbance A at 600 nm of the reaction liquid immediately before addition of the oxidizing agent divided by a concentration C on a mass basis of the monomer contained in the reaction liquid (absorbance A / concentration C) is 90 or more and 650 or less.SELECTED DRAWING: None

The invention relates to an electron beam curing composition, a coating, a preparation method and a coating method thereof, and a coated product. The electron beam curing composition comprises the following substances in parts by mass: 50-65 parts of first resin, 15-25 parts of second resin, 12-20 parts of an active diluent monomer and 2-6 parts of an antistatic agent, wherein the first resin comprises at least one of aliphatic epoxy acrylate and polyester acrylate, and the functionality of the first resin is greater than or equal to 4; the second resin comprises aliphatic polyurethane acrylate, and the functionality of the second resin is 2. An electron beam curing system without a photoinitiator is adopted, first resin and second resin with preset functionality are compounded with an active diluting monomer according to preset compatibility, the mechanical property of a formed coating is optimized, the adhesive force between the coating and a base plate is improved, an antistatic agent can be compounded to form an antistatic coating, and the anti-static performance of the coating is improved. And the requirements of roll coating processing of transparent plates on the anti-static performance, the cleanliness and the durability of the coating can be met.

The invention discloses a Prussian blue analogue carbon microsphere as well as a preparation method and application thereof. The Prussian blue analogue carbon microspheres are prepared by the following steps: S1, dispersing spherical silicon dioxide, transition metal salt, citrate and a dispersing agent in a solvent, uniformly stirring, then adding ferrocyanide for coordination reaction, and after the reaction, carrying out acid washing with a strong acid solution until coordination metal is completely removed, so as to obtain precursor powder; s2, calcining the precursor powder to obtain a carbon microsphere precursor; and S3, etching the carbon microsphere precursor until the spherical silicon dioxide is completely removed to obtain the Prussian blue analogue carbon microsphere. The average particle size of the spherical silicon dioxide is 7-100 nm. The Prussian blue analogue carbon microspheres prepared by the method can be used as a functional additive to be applied to a carbon-coated aluminum foil, so that the conductivity of the carbon-coated aluminum foil is improved.

A secondary battery, an electric apparatus, and a binder. The secondary battery includes a positive electrode plate, a negative electrode plate, and a separator. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector. The negative electrode film layer includes a negative electrode active material and a first binder. A mass percentage of the negative electrode active material in the negative electrode film layer is 96%-98.4%, and a mass percentage of the first binder in the negative electrode film layer is 0.5%-3%. The first binder includes a polymer, and the polymer includes —COOM, —CONH2, —CN, and —COOR, where M represents an alkali metal, and R represents substituted or unsubstituted C1-C20 alkyl.

The invention provides a water-based ultraviolet curing coating with an antistatic function and a preparation method thereof, and the water-based ultraviolet curing coating comprises the following components in parts by weight: 100-200 parts of water-based polyurethane acrylate, 2-5 parts of a photoinitiator, 10-20 parts of a filler, 0.5-3 parts of an auxiliary agent, 10-20 parts of a nano antistatic agent and 20-50 parts of deionized water. Wherein the water-based polyurethane acrylate is polyether type water-based polyurethane acrylate, polyester type water-based polyurethane acrylate or a composition of any one or two or more than two of polyether type water-based polyurethane acrylate and polyester type water-based polyurethane acrylate. The innovation points of the invention are as follows: a polyaniline-graphene nanocomposite with a nanosheet microstructure is developed by taking a graphene nanosheet as a polymerization template, and short-fiber polyaniline is developed as a novel antistatic agent by taking a carbon nanotube as a material morphology and interface action regulator; the anti-static performance of the anti-static coating is greatly improved, an organic solvent does not need to be added, and the anti-static coating is environmentally friendly and also has good adhesive force, flexibility, water resistance and chemical stability.

The invention discloses a method for industrially producing a micro-particle conductive aggregate. The method comprises the following steps: pretreating glass beads to obtain a micron-sized rough surface; preparing conductive paste containing large-particle graphene and water-based acrylic resin; at least three continuous spraying fluidized beds which are connected in series are adopted, and the surfaces of the microbeads are coated with bonding layers, conductive layers and protective layers in sequence; and finally, continuous curing and screening are carried out. According to the method, efficient, continuous and large-scale production of the conductive aggregate is achieved, and the problems that graphene is prone to agglomeration and uneven in dispersion and the coating binding force of a traditional process is poor are effectively solved. The obtained conductive aggregate is excellent in conductivity, good in solvent resistance, high in adhesive force and suitable for the fields of anti-static mortar, resin self-leveling materials, coatings and the like.

The invention discloses an antistatic teflon sleeve and a preparation method thereof. The antistatic teflon sleeve is prepared from the following components in parts by weight: 80-95 parts of teflon resin, 5-20 parts of a core-shell structure conductive filler, 1-3 parts of a compatilizer, 0.5-2 parts of a flexibilizer and 0.1-0.5 part of an antioxidant. The outer protective layer is prepared from the following components in parts by weight: 70 to 85 parts of ethylene-tetrafluoroethylene copolymer, 5 to 15 parts of modified nano silicon dioxide, 5 to 10 parts of fluororubber, 1 to 3 parts of antistatic aid and 0.1 to 0.5 part of ultraviolet absorbent. Through the design of the core-shell structure conductive filler, the core layer nano copper powder provides high conductivity, the shell layer PVDF has good compatibility with the Teflon base material, the surface modification layer further enhances the interface bonding force, the volume resistivity of the inner layer base material is reduced, and the antistatic requirement is met; the conductive filler is uniformly dispersed in the base material instead of a surface coating, so that the antistatic performance failure caused by friction or bending is avoided, and the antistatic performance is lasting and stable.