2597results about "Electrically-conductive paints" patented technology

The invention relates to the field of electric heating materials, and provides a graphene-based heating coating and a preparation method thereof. The coating is prepared from functionalized graphene, a surface modified bismuth telluride nanobelt, polyaniline, bisphenol A epoxy acrylate, polyurethane acrylate, a dispersing agent, a flatting agent, a silane coupling agent, a defoaming agent and a propylene glycol methyl ether acetate / N-methyl pyrrolidone mixed solvent. The functionalized graphene is obtained by modifying a hyperbranched polyolefin-acryloyl-POSS copolymer, and carrying out ultrasonic stripping, centrifugal separation, gradient washing and vacuum drying; the surface-modified bismuth telluride nanobelt is modified by an amino silane coupling agent, so that the interfacial compatibility is improved. The preparation method comprises the steps of solvent premixing, nanofiller dispersion, ultrasonic homogenization, coupling agent modification, ultraviolet curing and thermocuring. The heating coating provided by the invention has high conductivity, excellent thermal stability and adhesive force, and can be widely applied to heating electric appliances and intelligent temperature control equipment.

The invention belongs to the field of photovoltaic glass coatings, and particularly relates to a super-hydrophilic anti-reflection wear-resistant self-cleaning coating for room-temperature curing of photovoltaic glass, which takes nano silicon dioxide sol as a main film-forming agent to cure and form a film and comprises the following raw materials in parts by weight: 55-90 parts of deionized water, 9-20 parts of nano silicon dioxide sol, 1-10 parts of a silane coupling agent and 0.001-1 part of nano titanium dioxide. The coating is prepared from the following components in parts by weight: 0.01-1 part of a surfactant, 0.01-1 part of modified polyvinyl alcohol, 0.01-1 part of water-based acrylic resin, 0.001-1 part of an antistatic agent, 1-5 parts of a curing agent, 1-5 parts of a flatting agent and 0.1-1 part of a wear-resistant agent. The super-hydrophilic anti-reflection wear-resistant self-cleaning coating has super hydrophilicity, the water contact angle is below 10 degrees, the hydrophilicity, the antistatic property, the anti-reflection property, the wear resistance and other properties of glass can be remarkably improved, and when the super-hydrophilic anti-reflection wear-resistant self-cleaning coating is applied to photovoltaic module glass, the photoelectric conversion efficiency in photovoltaic power generation can be improved.

The invention provides a polyaniline / modified graphene oxide composite material and a preparation method thereof. The preparation method comprises the following steps: dispersing purified graphene oxide, performing ultrasonic treatment, heating, adding a modifier for modification, centrifuging, taking precipitate, freezing, drying and grinding to obtain modified graphene oxide powder; mixing the powder with an aniline solution in doped acid to form a modified graphene oxide / aniline acid solution; dissolving ammonium persulfate in the doped acid to prepare an ammonium persulfate acid solution; and slowly dropwise adding the solution into the solution, carrying out in-situ polymerization, and carrying out suction filtration, washing and drying to obtain the composite material. According to the method, through chemical modification and in-situ polymerization processes, the problems that a single filler is poor in dispersity, a conductive network is discontinuous, and anti-corrosion and anti-static performance is difficult to synergistically improve are solved, and the process is simple and convenient and suitable for industrialization.

The invention provides a wear early-warning intelligent material based on conductive core-shell micro-nano particles and a preparation method of the wear early-warning intelligent material, and belongs to the technical field of sensing materials. Conductive core-shell micro-nano particles are used as basic sensing function units to be doped into a polymer matrix to form a sensing layer, a three-layer structure material of a bottom residual life layer, a middle sensing layer and a surface self-lubricating wear-resistant layer is designed, and the material is prepared on a metal auxiliary surface. The surface self-lubricating wear-resistant layer is consumed in the wear process, so that the wear reaches the middle sensing layer, and the resistance of the middle sensing layer is obviously changed due to the damage of the conductive micro-nano particles as an early warning signal, so that the early warning information that the surface self-lubricating wear-resistant layer is worn out and friction pair parts need to be replaced in time is realized.

The invention relates to the technical field of coating preparation, and particularly discloses a multifunctional composite filler modified water-based coating and a preparation method thereof.The water-based coating is prepared from, by weight, 80-100 parts of modified core-shell acrylic acid dispersoid, 5-7 parts of multifunctional composite filler, 0.5-1 part of defoaming agent, 0.5-1 part of wetting agent, 2-5 parts of thickening agent, 1-2 parts of coalescing agent and 25-35 parts of deionized water. The water-based paint provided by the invention is modified by adding a proper amount of multifunctional composite filler, the performance is excellent, the stability is good, the components in the water-based paint have good compatibility by optimizing the preparation process conditions of the water-based paint, and the preparation method is simple to operate and suitable for industrial production.

A carbon-coated current collector. The carbon-coated current collector comprises a foil and a conductive coating arranged on the surface of the foil. The conductive coating comprises a combination of a modified conductive carbon material and a binder. The binder is prepared from the following raw materials in parts by weight: 40-60 parts of methyl isobutyl ketone, 25-30 parts of a solvent, 20-25 parts of isobornyl methacrylate, 20-25 parts of methyl methacrylate, 20-25 parts of n-butyl acrylate, 20-25 parts of hydroxyethyl acrylate, 18-22 parts of silicone oil, and 50-55 parts of an initiator. The modified conductive carbon material is a fluorosilane-modified carbon material. The modified conductive carbon material and the binder can form silanols by means of hydrolysis reaction of respective alkoxy groups, then the silanols form new hydrogen bonds with OH groups, and covalent bonds are formed on the surface of the carbon material, thereby forming a highly cross-linked network structure, which further enhances water resistance, allowing for the ability to withstand 200 or more wiping operations.

The invention discloses a carbon dioxide sensitive material and a carbon dioxide sensor, the carbon dioxide sensitive material is formed by compounding Co-Ni LDH and PEI, and the mass ratio of Co-Ni LDH to PEI is (0.2-20): 1; the invention also provides a carbon dioxide sensor prepared from the sensitive material, the carbon dioxide sensor can realize high-sensitivity detection on 15-900ppm carbon dioxide under the environment of room temperature and 50-70% RH humidity, the response value on 15ppm carbon dioxide can reach 25%, the response value on 500ppm CO2 can reach 377.8%, the response value on 900ppm carbon dioxide can reach 713%, and the response value on 15ppm CO2 can reach 377.8%. The problems that an existing carbon dioxide sensor is high in working temperature and low in detection sensitivity are solved, the testing environment range is widened, and high-sensitivity detection of carbon dioxide can be achieved in the environment with the RH of 50%-70%.

The invention relates to the field of electromagnetic functional composite materials, and particularly discloses a multi-layer composite structure flexible frequency selective surface material and a preparation method thereof. The ultra-high molecular weight polymer fiber-reinforced polymer-based composite material thin-film mechanical enhanced band-pass frequency selection array sequentially comprises an acrylic acid polyvinylidene fluoride organic polymer coating environment-resistant layer, a metal oxide organic film isolation layer, an ultra-high molecular weight polymer fiber-reinforced polymer-based composite material thin-film mechanical enhanced layer, a band-pass frequency selection layer and a packaging protection layer from top to bottom, and the band-pass frequency selection layer is a hexagonal / circular ring nested band-pass frequency selection pattern array. The packaging protection layer is formed by printing a conductive coating composed of conductive filler / polymer resin matrix, and the packaging protection layer is an ink coating. The flexible frequency selective surface material has the characteristics of light weight, high strength, salt fog / rain / ultraviolet and other severe environments, frequency selective wave transmission and multiple functions, has good gas barrier property, is beneficial to maintaining the shape of an inflatable hangar made of a skin and ensuring normal operation of radar equipment, and has good practical engineering application value.

To provide a thermoplastic resin composition for fused deposition modeling, capable of obtaining a modeled body which is excellent in modeling performance and antistatic performance, which can be colored into various colors, and which has diverse design properties, a modeled body which is obtained with the thermoplastic resin composition by fused deposition modeling, and which not only is excellent in antistatic performance and but also has excellent design properties by coloration, and a method for producing the modeled body. A thermoplastic resin composition for fused deposition modeling, containing 3 to 45 parts by mass of one or more kinds of a polymeric compound (G) having the following polyether segment (A) and polymer segment (B), based on 100 parts by mass of a thermoplastic resin:Polyether segment (A): a polyether segment derived from a compound (a) having one or more ethyleneoxy groups and having a hydroxyl group at each of both ends;Polymer segment (B): one or more polymer segments selected from the group consisting of a polyester segment (D) and a polyamide segment (E).

The application discloses a kind of carbon nanotube / polyaniline composite modified epoxy resin conductive paint and preparation method thereof, belong to coating technical field.The application is prepared by preliminary disentangling carbon nanotube with specific solvent, and the carbon nanotube dispersion liquid uniformly dispersed is obtained;Afterwards, polyaniline is added to carbon nanotube dispersion liquid, and carbon nanotube / polyaniline composite is prepared by solvent evaporation or purification;Finally, carbon nanotube / polyaniline composite is compounded with epoxy resin, and high-performance carbon nanotube / polyaniline composite modified epoxy resin conductive paint is obtained.The carbon nanotube / polyaniline composite modified epoxy resin conductive paint prepared by the application has more excellent mechanical properties and electrical properties than traditional conductive paint, and can be better applied in aerospace, battery, communication, new energy and other aspects.

The invention discloses automobile intelligent sunscreen glass and a control system thereof, and relates to the technical field of sunscreen glass, the automobile intelligent sunscreen glass comprises a first glass substrate, a second glass substrate and a thermoplastic membrane arranged between the first glass substrate and the second glass substrate; a multi-layer functional film layer is arranged between the first glass substrate and the second glass substrate and comprises one or a combination of a heat insulation heating layer, a protective layer, a photoelectric conversion layer and an electrochromic dimming layer; a tourmaline functional film layer is arranged on the outer layer of the second glass substrate; the functional film layers have good compatibility and stability, function maximization can be achieved, and the riding experience is remarkably improved; the heat insulation heating layer and the electro-dimming layer are combined to form a composite membrane, and the composite membrane is connected with vehicle-mounted equipment through copper foil, wires and the like, so that intelligent control over heating and lighting is achieved.

A primer composition includes solvent, electrically conductive filler dispersed in the solvent, and a polymer at least one of dissolved or dispersed in the solvent. The polymer includes at least one of a polyurethane, polyacrylate, a polyamide, or a rubber. An adhesive system includes the electrically conductive composition and an electrically debonding adhesive including an ionic liquid. The use of the primer composition as a primer on an electrically nonconductive substrate in combination with an electrically debonding adhesive is also described. A method of making a bonded article and an article bonded with the adhesive system disclosed herein and / or made by the method disclosed herein are also described.

The invention relates to a high-temperature-resistant insulating coating material for an electromagnetic wire as well as a preparation method and application thereof. The method comprises the steps that the surface of a wire is pretreated; the preparation method comprises the following steps: preparing raw materials of the glass component according to a ratio, melting glass, ball-milling and sieving to obtain glass powder, and then adding the ceramic component and the auxiliary additive component to obtain an inorganic filler; the preparation method comprises the following steps: mixing organic silicon resin, inorganic powder, a solvent, a pigment and an auxiliary agent in proportion to obtain uniform slurry; the method comprises the following steps: coating a wire with a coating, curing the wire after coating is completed, and naturally cooling the wire to room temperature after curing is completed. The electromagnetic wire surface coating can be prevented from aging, peeling, cracking, stripping and losing efficacy at the high temperature of 500 DEG C, the performance of high insulation, impact resistance, long service life and the like of the coating material in the high-temperature environment is improved, it is guaranteed that equipment can tolerate severe natural environments or machine part working environments, and the electromagnetic wire surface coating has high stability and long service life.

The invention discloses an optical-grade PET release film and a preparation method and application thereof, and belongs to the technical field of PET release liners.The preparation method comprises the steps that organic silicon resin, polyacrylate and functional silicone oil serve as raw materials, hexadecafluorophthalocyanine copper serves as a catalyst, sodium hydroxide provides hydroxyl anions, and hydroxyl-containing fluorinated hydroxyaniline is obtained; amino groups on the surface of fluorinated hydroxyaniline react with carboxyl groups of graphene oxide and are grafted on the surface of graphene oxide, then hydroxyl groups in the fluorinated hydroxyaniline and carboxyl groups of acrylic acid are subjected to esterification reaction under the action of a catalyst, so that acrylic acid is grafted on fluorinated modified graphene oxide, and the fluorinated modified graphene oxide is obtained. Therefore, hydroxyl and epoxy functional groups on the surface of the graphene oxide are consumed, hindering of electron transmission is reduced, the conductivity of the release film is improved, and the antistatic requirement of the release film is met.

The invention relates to the field of lithium ion batteries. In order to solve the problem of complicated preparation process of carbon-coated aluminum foil at present, the invention proposes a carbon-coated aluminum foil coating and a method for preparing the carbon-coated aluminum foil by using the carbon-coated aluminum foil coating. The carbon-coated aluminum foil coating comprises a colloid and a conductive agent, wherein the colloid is 19-51 parts by weight and the conductive agent is 54-110 parts by weight, and the carbon-coated aluminum foil with high conductivity, strong adhesion and high performance and good circulation is obtained. At the same time, the invention also proposes to prepare a positive electrode sheet and a lithium ion battery by using the carbon-coated aluminum foil, and the prepared lithium ion battery has excellent performance.

Electrochromic gels that include 20 to 99 wt. % of a polar solvent, 0.5 to 25 wt. % of a rheology modifying agent, and 0.5 to 20 wt. % of an electrochromic material. The rheology modifying agent is soluble in the polar solvent and forms a gel at ambient conditions when dissolved.

Concentrated flowable compositions having a total metal weight of at least about 45 wt % are used to form an electrically conductive material. The compositions include metal particulates such as silver flakes, silver particles and / or silver nanowires, and for embodiments of particular interest, a reducible metal composition such as one or more silver salts. The composition includes an organic precursor that forms a polymeric matrix and includes a dissolved polymer binder, a crosslinkable or polymerizable monomer, oligomer or polymer, or a mixture thereof. The flowable precursor composition can be used to form an electrically conductive structure such as a composite of solid polymer matrix and at least about 45 wt % metal. The composite can have a resistivity of no more than about 5×10−3 Ohm-cm. Methods for forming the flowable precursor composition and the composites are described.

The invention belongs to the technical field of photovoltaic coatings, and discloses a photovoltaic coating as well as a preparation method and application thereof. The photovoltaic coating is prepared from the following raw materials: a solvent, an ultraviolet light absorber, a wetting agent, an antistatic agent, modified hydrophilic silicon dioxide, nano magnesium fluoride and nano tin dioxide, the modified hydrophilic silicon dioxide is hydrophilic silicon dioxide modified by ethylenediamine and glacial acetic acid. A coating formed by the photovoltaic coating is high in adhesive force and resistant to aging, and the light transmittance, the self-cleaning property and the antistatic property of photovoltaic glass can be obviously improved.

The invention provides an ocean engineering anticorrosive coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from the following raw materials: fluorocarbon resin, modified synthetic mica, modified basalt fibers, modified carbon nanotubes, nano silicon dioxide, nano zinc oxide, nano titanium dioxide, carbon fibers, zinc phosphate, hydroxyl-terminated polybutadiene, a plant extract, organic tin and the like. The modified synthetic mica and the modified carbon nanotubes are modified by adopting pentaerythritol stearate, cellulose nitrate and sodium hexametaphosphate; the modified basalt fiber is modified by adopting sodium stannate, polyvinyl alcohol and sodium hexametaphosphate; the plant extract is ethanol percolation extract of kandelia candel leaves and mangnolia officinalis leaves. All the components are used in a matched mode according to a certain proportion, and the advantages of being excellent in anti-corrosion performance, good in mechanical performance, excellent in anti-aging performance, environmentally friendly and the like are achieved.

The invention discloses corrosion-resistant flaky silver-coated copper powder, a preparation method of the corrosion-resistant flaky silver-coated copper powder and an electromagnetic shielding shell, and the preparation method of the corrosion-resistant flaky silver-coated copper powder comprises the steps that flaky copper powder and a complexing agent are added into water to be evenly dispersed, and a water-based copper powder solution is obtained; adding the water-based copper powder solution and a corrosion inhibitor into a water solution containing a reducing agent, and uniformly dispersing to obtain a copper powder reducing solution; a silver-ammonia solution and a stabilizer are added into the copper powder reduction solution for a reduction reaction, silver-coated copper powder particles are obtained, and after precipitation and filtration, the corrosion-resistant flaky silver-coated copper powder is obtained; the stabilizer is obtained by carrying out a quaternization reaction on 3-dimethylamino-1-propanethiol and sodium 3-bromopropane sulfonate. The flaky copper powder and the silver ammonia react under the condition of the specific stabilizer, so that the coating property, the oxidation resistance, the coating uniformity and the compactness of the obtained silver-coated copper powder are effectively improved, and the obtained silver-coated copper powder is efficiently applied to an electromagnetic shielding shell.

The invention relates to the field of antistatic PVC (polyvinyl chloride) materials, in particular to a preparation method, a product and application of an antistatic pre-dispersion for a PVC film. The antistatic pre-dispersion for the PVC film is prepared by preparing an antistatic agent from an aminated ionic liquid-CNT compound and carboxylated Mxene, and mixing the antistatic agent with a plasticizer, an auxiliary dispersant and a hyperbranched flow improver. PVC resin and the like can be further combined to prepare a coating, and the coating and base cloth are prepared into a PVC film structure material to serve as an antistatic PVC material. The antistatic pre-dispersion prepared by the invention has good dispersibility in PVC resin, is slightly influenced by environmental temperature / humidity, and has a lasting antistatic effect. Meanwhile, the PVC film structure material prepared by using the antistatic pre-dispersion disclosed by the invention is good in wear resistance, not easy to migrate, stable in performance and relatively long in service life.

The present application relates to a self-healing, electrically conducting elastomer, comprising an electrically conducting phase comprising PEDOT:PSS nanofibrils and an electrically insulating phase comprising a polyborosiloxane-based polymer and a polydimethylsiloxane-based polymer. The present application also relates to a method for manufacturing the self-healing, electrically conducting elastomer.

The invention provides a conductive adhesive and a preparation method thereof, a negative plate and a battery, and belongs to the technical field of batteries, the structural formula of the conductive adhesive is as shown in formula (1), and m: n = (1-4): 1. The conductive adhesive provided by the embodiment of the invention can give consideration to good adhesive performance and conductive performance, and by applying the conductive adhesive to the battery, electrochemical reaction power of the battery can be improved and the cruising ability of the battery can be ensured on the basis of not increasing the content of the conductive agent and not influencing the capacity of the battery.

The invention relates to the technical field of polyether-ether-ketone composite materials, in particular to a conjugated polythiophene-polyether-ether-ketone-based high-antibacterial coating and a preparation method thereof.The preparation method comprises the steps that hydroxyl modified boron nitride with photocatalytic capacity and aminated PEEK are subjected to melt blending to generate chemical bonding, and a BN-OH / PEEK-NH2 composite fine powder material is formed; then carrying out oxidative polymerization on the BN-OH / PEEK-NH2 composite fine powder and a thiophene monomer under the action of an oxidizing agent, carrying out in-situ synthesis to obtain a polythiophene / BN-OH / PEEK-NH2 conjugated composite material, and subsequently spraying the polythiophene / BN-OH / PEEK-NH2 conjugated composite material to the surface of a base material to prepare a composite coating with excellent antibacterial property, high thermal stability and low friction coefficient; the antibacterial rate of the coating on escherichia coli and staphylococcus aureus under illumination reaches 90% or above, and the coating is suitable for the medical antibacterial field.

The invention discloses an impact-resistant industrial coating and a manufacturing method thereof, and relates to the technical field of industrial coatings. The impact-resistant industrial coating comprises the following raw materials in parts by weight: 80-100 parts of epoxy resin, 2-5 parts of graphene oxide, 3-5 parts of an antistatic agent, 5-8 parts of a modified thickener, 1-3 parts of a dispersant, 0.5-1.5 parts of a leveling agent, 2-3 parts of an antioxidant, 8-12 parts of a curing agent and 100-140 parts of deionized water. The preparation method comprises the following steps: reacting polyethylene glycol diethylene oxide methyl ether with 2-(methacrylic acid) ethyl ester 3, 5-diaminobenzoic acid to generate a polymer; reacting the polymer with 3-(dimethylamino)-1-propanethiol to generate a tertiary amine-terminated polymer; and carrying out quaternization reaction on the tertiary amine-terminated polymer and bromododecane to obtain the antistatic agent. The impact-resistant industrial coating prepared by the invention has excellent antistatic property and rheological property.

The invention discloses a broadband electromagnetic shielding coating and a preparation method thereof, and relates to the technical field of electromagnetic shielding. The broadband electromagnetic shielding coating comprises a first conductive layer, a magnetic conductive layer and a second conductive layer; the magnetic conductive layer is located between the first conductive layer and the second conductive layer. Through the three-layer structure, electromagnetic waves can be attenuated layer by layer, so that propagation of the electromagnetic waves is blocked, and the magnetic conductive layer located in the middle can improve the shielding effect of the material on the electromagnetic waves at low frequency through high magnetic conductivity.

The invention relates to an antistatic plastic film and a preparation method thereof, and belongs to the technical field of polymeric membrane materials, the antistatic plastic film is composed of a PET base film and an antistatic coating formed by curing an antistatic coating, the antistatic coating comprises the following components in parts by weight: 100 parts of organic silicon resin, 12-18 parts of an antistatic agent, 0.8-1.1 parts of a dispersing agent, 0.4-0.6 part of a bridging agent, 0.15-0.2 part of a flatting agent and 55-60 parts of a solvent, according to the antistatic agent, lamellar graphene is used as an electrostatic charge release matrix, a silane coupling agent KH-550 is used for introducing amino to the surface of a lamellar layer for modification, methyl chloroacetate and the amino grafted to the lamellar layer are used for substitution, finally, methyl iodide and a substituted amine compound are subjected to quaternization reaction, quaternary ammonium cations are introduced to the surface of the graphene lamellar layer, and the antistatic agent is obtained. And a continuous current collecting layer is formed in the coating, so that the generated electrostatic charge is timely led out, and the film material is endowed with excellent antistatic property.

The present invention relates to a copolymer composition including a first copolymer including a vinyl alcohol monomer unit and a vinyl amine-based monomer unit, and a second copolymer including a vinyl alcohol monomer unit and an acrylic acid salt-based monomer unit, and to an anode slurry, an anode, and a secondary battery including the copolymer composition.

The invention relates to the technical field of coating preparation, and particularly discloses a method for preparing a wave-absorbing coating by using modified carbon black as a wave-absorbing agent, which comprises the following steps: modifying N550 carbon black, uniformly mixing with porous ceramic microspheres, and sintering at 1680 DEG C under the protection of argon to prepare the wave-absorbing agent; then adding the water-borne epoxy resin, the water-borne polyurethane emulsion, the mica powder, the flatting agent and the dispersing agent into the solvent, and then adding the curing agent to prepare the wave-absorbing coating. The prepared coating is low in price, high in wave absorbing performance and environmentally friendly, and further has certain wear-resistant and anti-corrosion effects.

The invention discloses an epoxy resin conductive coating based on carbon nanotube / polyaniline composite modification and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: preliminarily unwrapping a carbon nanotube through a specific solvent to prepare a uniformly dispersed carbon nanotube dispersion liquid; then polyaniline is added into the carbon nanotube dispersion liquid, and a carbon nanotube / polyaniline compound is prepared through solvent evaporation or purification; and finally, compounding the carbon nanotube / polyaniline compound with epoxy resin to obtain the high-performance carbon nanotube / polyaniline composite modified epoxy resin conductive coating. Compared with the traditional conductive coating, the carbon nanotube / polyaniline composite modified epoxy resin conductive coating prepared by the invention has more excellent mechanical properties and electrical properties, and can be better applied to the aspects of aerospace, batteries, communication, new energy and the like.