65 results about "Doped polyaniline" patented technology

The invention belongs to the technical field of aerogel materials, and particularly relates to antistatic aerogel for 3D printing as well as a preparation method and application of the antistatic aerogel. The preparation method comprises the following steps: (1) dispersing inorganic nanoparticles modified by a silane coupling agent containing epoxy groups and an aniline monomer in an acidic solvent to obtain a monomer mixed solution; (2) stirring and dissolving polyamide in the monomer mixed solution; (3) initiating a reaction to obtain a polyaniline modified polyamide solution; and (4) freeze-drying to obtain the antistatic aerogel for 3D printing. By controlling synthesis conditions, a core-shell structure of acid-doped polyaniline coated inorganic nanoparticles is formed, and a good conductive path is formed in polyamide with a small addition amount of polyaniline. The antistatic aerogel for 3D printing can be applied to technologies such as photocuring molding and fused deposition of polyurethane resin in a 3D printing technology, and the antistatic property and the mechanical property of a 3D printed product are improved.

The application relates to the technical field of packaging films, and discloses an antistatic plastic packaging film and a preparation process.The antistatic plastic packaging film comprises 100 parts by weight of polyethylene, 1-6 parts by weight of phenolic resin polyaniline antistatic agent and 0.2-0.3 parts by weight of an antioxidant.The dodecyl succinic anhydride esterified phenolic resin contains carboxyl groups, can be used as a protonic acid, is doped into polyaniline through an in-situ polymerization reaction, makes imine nitrogen atoms of the polyaniline protonate, forms a charged excited state polaron, and thus the conductivity of the polyaniline is improved, the resistance of the polyethylene is reduced, and the antistatic performance of the packaging film is improved.The dodecyl succinic anhydride esterified phenolic resin and the doped polyaniline have good compatibility with the polyethylene, have a certain reinforcing effect on the polyethylene, and make the film material have higher tensile strength and elongation at break.

The invention discloses a modified polyaniline synergistic flaky zinc-aluminum waterborne epoxy anticorrosive coating and a preparation method thereof. The anticorrosive coating comprises a component A and a component B in a mass ratio of (4-5): 1, the component A is prepared from the following components in parts by weight: 8 to 16 parts of waterborne epoxy resin, 55 to 75 parts of zinc powder, 5 to 10 parts of flaky zinc-aluminum powder, 0.3 to 0.6 part of a dispersing agent, 0.5 to 1 part of an anti-settling agent, 0.1 to 0.3 part of dodecylbenzene sulfonic acid doped polyaniline, 1 to 2 parts of an adhesion promoter and 6 to 10 parts of a first solvent; and the component B comprises the following components in parts by weight: 3-7 parts of a water-based amine curing agent, 1-2 parts of an anti-flash-rust auxiliary agent, 5-10 parts of a second solvent and 2-5 parts of deionized water. The obtained coating is compact, excellent in corrosion resistance, good in adhesive force, few in organic volatile matter, easy to prepare, convenient to operate and completely free of chromate, and the corrosion resistance far beyond that of conventional paint is achieved.

The invention belongs to the technical field of zinc-iodine batteries, and particularly relates to doped polyaniline, a preparation method thereof and a zinc-iodine battery. The preparation method comprises the following steps: in an acidic environment, mixing substituted aniline, aniline and an oxidizing agent to obtain a mixed solution, and carrying out oxidative polymerization reaction to obtain doped polyaniline; wherein a substituent group of the substituted aniline is an electron withdrawing group; the number of the substituent group is 1; the molar ratio of the substituted aniline to the aniline is (5-25): 100; the positive electrode material in the zinc-iodine battery prepared from the doped polyaniline has high specific capacity and cycling stability.

The invention discloses an active oxygen electrode material for water purification and disinfection and a preparation method and application thereof, and belongs to the technical field of drinking water purification. The electrode material is based on Ox-CNHs nano conductive particles obtained from treated single-walled carbon nanohorns, is matched with nitrogen-doped polyaniline and other components, and is prepared by innovatively using aniline and coal gasification fine slag through a special process. Due to the unique structure, the oxygen adsorbability is good, the electric conductivity is good, active oxygen groups can be efficiently generated, the water body and air disinfecting and purifying capacity is achieved, repeated use can be achieved, the cost is reduced, and high-value utilization of solid waste is achieved. The electrode material is used for a cathode and an anode of an electrochemical water purification and disinfection device, and by virtue of excellent conductivity and catalytic activity, the cathode and the anode cooperate with a runner plate to guide a water body to flow in an electrochemical reactor, so that the water body is in full contact with the electrode, and the purification and disinfection efficiency on the water body is remarkably improved; the method has wide prospects in the fields of water and air disinfection and purification and environmental protection.

The invention relates to the field of anticorrosive coatings, and particularly discloses a multifunctional long-acting anticorrosive coating and a preparation method thereof. The anticorrosive paint comprises a main agent and a curing agent, the main agent is prepared from the following components in parts by weight: 30 to 40 parts of matrix resin, 1 to 2 parts of dispersing agent, 1.2 to 2.5 parts of bentonite, 13 to 25 parts of anti-rust pigment, 3 to 5 parts of doped polyaniline, 3 to 6 parts of gas-phase anti-rust agent, 2.5 to 5.0 parts of benzotriazole corrosion inhibitor, 10 to 17 parts of filler, 13 to 21 parts of solvent, 0.5 to 1.5 parts of defoaming agent, 1 to 3 parts of anti-settling wax and 5 to 10 parts of Angstrom anti-rust microcapsule. The anticorrosive paint can have excellent adhesive force and anticorrosive performance on various different materials, can meet the application of spraying multiple materials on the same equipment, greatly reduces the construction difficulty, can quickly and automatically repair under the condition that a paint film is scratched, and greatly reduces the possibility that a base material is rusted.

The invention discloses an application of a chiral polylactic acid piezoelectric material doped polyaniline composite friction film in degradation of organic pollutants. The application specifically comprises the following steps: adhering the chiral polylactic acid piezoelectric material doped polyaniline composite friction film to the bottom of a turntable, and adhering a friction bottom sheet to the bottom in a flat-bottom container; the organic pollutant solution is poured into the container, the rotating disc adhered with the friction film is placed in the container for equilibrium adsorption, and one side of the friction film faces upwards; the turntable is turned over to enable one side of the friction film to face downwards to form a friction pair with the friction bottom plate, and the turntable is started to rotate for friction catalysis to realize degradation of organic pollutants. The conductivity of polyaniline is combined with the piezoelectric and chiral characteristics of chiral polylactic acid, a flexible friction film is obtained through a solution casting method, the flexible friction film and a friction bottom form a friction pair, active free radicals are generated through the triboelectric effect, high-concentration organic pollutants are efficiently degraded, and environment-friendly and efficient pollutant degradation at normal temperature and pressure is achieved.

The invention belongs to the technical field of photo-thermal evaporation materials, and discloses a composite photo-thermal material Fe / PANI / GF and a preparation method and application thereof. The preparation method of the composite photo-thermal material Fe / PANI / GF comprises the following steps: taking graphite felt (GF), and activating at high temperature to obtain activated graphite felt; uniformly depositing polyaniline on the surface of the activated graphite felt by adopting a constant current method or a cyclic voltammetry to obtain acid-doped polyaniline (PANIES / GF); and dipping the acid-doped polyaniline in a ferric salt solution or a ferrous salt solution, and dispersing and loading Fe on the PANI nano-particle layer through Fe-N coordination to obtain the composite photo-thermal material Fe / PANI / GF. The method shows wide application prospects in the fields of seawater desalination, high-salinity wastewater treatment, heat-assisted power generation, photo-thermal driven sterilization, soil remediation and the like, and an innovative scheme is provided for solving the problems that a traditional photo-thermal material is low in efficiency, poor in stability, high in cost and the like.

The invention discloses a two-dimensional carbon-based catalyst material as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps: by taking aniline as a carbon source and a nitrogen source, initiating oxidative polymerization by ammonium persulfate in a perchloric acid solution containing a metal precursor to generate metal-doped polyaniline; and heating the polymer to induce an explosion reaction so as to realize rapid stripping and carbonization of polyaniline and finally obtain the two-dimensional carbon-based material. The method provided by the invention has the advantages of low initiation temperature, extremely short reaction time and remarkable energy-saving advantage, the obtained material shows excellent catalytic performance and good stability in various systems such as energy conversion and electro-catalytic synthesis as an electrode catalyst, and the preparation process is low in raw material cost, simple to operate, low in energy consumption, small in environmental pollution and suitable for industrial production. And the method has a good large-scale application prospect.

The invention discloses construction and application of a biosensor based on an efficient antifouling interface and dual signal amplification, and belongs to the technical fields of optical / electric analytical chemistry, biosensing and material science. According to the invention, the electrode interface is modified with polyaniline doped with polytannic acid as an antifouling film, so that non-specific adsorption of interfering biomolecules in a complex medium is resisted; euTb-MOF is prepared as an efficient luminous body, Tb < 3 + > can transfer energy of Tb < 3 + > and ligand to Eu < 3 + >, and effective signal self-enhancement is realized; according to the EuTb-MOF, the reduction of S2O8 < 2-> is promoted by utilizing the reversible conversion of valence states of Co < 2 + > / Co < 3 + > and Fe < 2 + > / Fe < 3 + > and the synergistic catalysis of Ag NPs, so that the electrochemical luminescence signal of the EuTb-MOF is further improved. Based on the above strategy, the constructed biosensor has high detection sensitivity and precision and long service life, the linear range is 10 fM to 100 nM, and the detection limit is as low as 3.62 fM.

The application relates to the technical field of PET sheets, in particular to an anti-static impact-resistant PET sheet and a preparation method thereof. The anti-static impact-resistant PET sheet of the application comprises PET resin and a modifier. The PET resin and the modifier are melt-blended, extruded and sliced to prepare the anti-static impact-resistant PET sheet. The modifier has an important influence on the anti-static performance and the impact resistance of the PET sheet. The preparation method of the modifier comprises the following steps: firstly, unsaturated glycidyl ester is reacted with amino siloxane; then, the unsaturated glycidyl ester is grafted on the POE molecular chain through melt grafting; finally, the acid-doped polyaniline layer is coated by using an in-situ polymerization method. The modifier obtained through the above preparation method has good compatibility with the PET resin, the interface bonding strength between the POE and the polyaniline is high, in addition, organic montmorillonite and nano zinc oxide can be introduced into the above modifier, and the anti-static performance and the impact resistance of the PET sheet can be further improved.

The invention relates to the technical field of lithium batteries, in particular to a bipolar current collector, a preparation method thereof and a lithium metal battery. The bipolar current collector comprises a metal foil, an alpha zirconium phosphate doped polyaniline coating and a graphene coating; the metal foil comprises an anode metal foil layer and a cathode metal foil layer; the positive electrode metal foil layer is stainless steel foil, and the surface of the positive electrode metal foil layer is coated with the graphene coating; the negative electrode metal foil layer is a copper layer, and the surface of the negative electrode metal foil layer is coated with the alpha zirconium phosphate doped polyaniline coating; the preparation method of the bipolar current collector comprises the following steps: performing magnetron sputtering on the surface of stainless steel foil to form a copper layer; metal foil is obtained; coating the surface of the copper layer with an alpha zirconium phosphate doped polyaniline solution, drying and curing to form an alpha zirconium phosphate doped polyaniline coating; then, the surface of the stainless steel foil is coated with graphene slurry, post-treatment is conducted, and a graphene coating is formed; and obtaining the bipolar current collector. And preparing the lithium metal battery by using the bipolar current collector.

The invention relates to the field of coatings, and discloses a cathodic disbonding resistant solvent-free polyurethane anticorrosive coating for pipelines, the component A of the coating comprises polyethylene glycol, polytetrahydrofuran glycol, 1, 4-butanediol, a functional additive, modified graphene oxide, and an auxiliary agent; the component B is prepared from polyethylene glycol, polypropylene glycol and 4, 4 '-diphenylmethane diisocyanate; the functional additive is prepared by coating dodecylbenzene sulfonic acid doped polyaniline with modified epoxy resin and castor oil through an in-situ emulsion polymerization method; the preparation method comprises the following steps: preparing a modified intermediate from 6-hydroxybenzo [D] thiazole-2-formaldehyde, o-methoxyphenol and DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) in the modified epoxy resin, and substituting the modified intermediate with epoxy chloropropane; the modified graphene oxide is used for loading a modifier by using graphene oxide; according to the modifier, a carboxylation initial product obtained by reacting phytic acid, trimethylolpropane and citric acid reacts with carbamide, and the coating is good in adhesive force and excellent in mechanical property and has good corrosion resistance, flame retardance and antibacterial property.

This invention relates to a corrosion-resistant carbon-based composite material and its preparation method, belonging to the technical field of carbon-based composite materials. The invention involves creating a self-made modifier, then using this modifier and oxalic acid to dope aniline to obtain doped polyaniline. The doped polyaniline is then blended with high-density polyethylene and carbon nanotubes to obtain the corrosion-resistant carbon-based composite material. The phosphate ester groups in the modifier not only provide flame retardancy but also form complexes with the metal wire core. Together with the hydrophobic protective layer formed by the long-chain alkyl groups, they block the intrusion of water molecules and chemical media, giving the material excellent corrosion resistance. Furthermore, the aromatic heterocyclic structure in the modifier improves the overall heat resistance of the material and, in combination with the long-chain alkyl groups, ensures uniform dispersion of polyaniline and carbon nanotubes in the polyethylene matrix, enhancing the interfacial bonding between the three components, thereby improving the overall electrical conductivity and corrosion resistance of the material.

The invention relates to the technical field of nano biological medicines, and discloses a photo-thermal-enzyme catalysis nano-particle as well as a preparation method and application thereof. The photo-thermal-enzyme catalysis nano-particles are constructed by crosslinking water-soluble self-doped polyaniline nano-particles, human serum albumin, lactate oxidase and collagenase through a thioacetal linker capable of being split by active oxygen. Collagenase and lactate oxidase (LOx) are integrated into the same nanoparticle system through a thioacetal (TK) linker, the TK linker is split under the action of tumor microenvironment active oxygen (ROS) and H2O2 generated by catalysis of the LOx, the activity of the two enzymes is synchronously activated, a collagen matrix (physical barrier) is degraded, lactic acid (chemical barrier) is removed, the tumor microenvironment is efficiently remodeled, and the tumor microenvironment can be effectively inhibited. The problems that the regulation effect of a single barrier is limited, and the tumor microenvironment is difficult to improve are solved.

The invention discloses hydrogel for sweat glucose detection, a preparation method of the hydrogel and a spontaneous perspiration type hydrogel sweat glucose detection sensor, and relates to the field of biological fluid characteristic object recognition, and the preparation method of the hydrogel comprises the steps that firstly, phytic acid and aniline monomers serve as raw materials, and phytic acid doped polyaniline powder is prepared; mixing Mxene, methylene blue, sodium ascorbate, the phytic acid doped polyaniline powder, acrylamide and N, N '-methylene bisacrylamide in deionized water to obtain a mixed solution; dropwise adding an ammonium persulfate solution into the mixed solution, stirring and standing to obtain a hydrogel intermediate; and finally, sequentially activating and modifying the hydrogel intermediate, and dispensing glucose oxidase to obtain the hydrogel for sweat glucose detection. The hydrogel prepared by the invention has high ion / electron conductivity, enzyme immobilization ability and mechanical flexibility. The interface charge transfer efficiency can be improved and multifunctional integration can be realized by integrally designing the electrode and a carbon electrode into a sensor of an interdigital structure.

The invention discloses an adhesive film for a chip carrier plate. A glue solution of the adhesive film comprises epoxy resin, thermoplastic resin, a flexibilizer, a curing agent, an inorganic filler, modified nano crystalline cellulose, a flatting agent, an anti-settling agent and a solvent, the inorganic filler comprises coupling agent modified silicon dioxide and organic phosphonic acid doped polyaniline modified zirconium oxide; the organic phosphonic acid doped polyaniline modified zirconium oxide is 2-hydroxyphosphoryl acetic acid doped polyaniline modified zirconium oxide; the modified nano crystalline cellulose is modified by carboxymethylated nano cellulose through octadecyl trimethyl ammonium chloride. Organic phosphonic acid doped polyaniline modified zirconium oxide and coupling agent modified silicon dioxide are compounded, and modified nano crystalline cellulose is uniformly dispersed in an adhesive film to form a compact adhesive film, so that the expansion coefficient of the obtained adhesive film is small, and the water vapor barrier property is improved; the adhesive force with the carrier plate is good in application, and the reliability of the carrier plate is improved; the film surface of the obtained adhesive film is uniform and flat, and manufacturing of a fine circuit and a carrier plate with a smaller aperture is facilitated.

The present application provides a kind of polyaniline amorphous anticorrosive coating, including component A and component B, component A includes 25 mass parts-40 mass parts water-based epoxy resin, 20 mass parts-30 mass parts micrometre flaky amorphous alloy, 5 mass parts-10 mass parts doped polyaniline, 10 mass parts-20 mass parts filler and 4 mass parts-7 mass parts first auxiliary agent;Component B includes 10 mass parts-20 mass parts water-based curing agent and 1 mass parts-3 mass parts second auxiliary agent.The preparation method of polyaniline amorphous anticorrosive coating is also provided.The polyaniline amorphous anticorrosive coating of the present application has super high adhesion, hardness, acid resistance, alkali resistance and salt fog resistance on metal surface, and uses water-based formula, avoids the use of a large amount of organic solvent, green and environmental protection.

The invention discloses a spraying-free antibacterial material for automobiles and a preparation method of the spraying-free antibacterial material, and belongs to the field of high polymer materials. Step 2, preparing doped polyaniline; step 3, preparing functional components; and step 4, preparing the spraying-free antibacterial material to obtain the spraying-free antibacterial material for the automobile. Considering the dispersibility of each component in the preparation process, the scheme adopts different dispersion modes to prepare powdery modified titanium dioxide, doped polyaniline, functional components and the like, and the finally prepared product not only has a good antibacterial effect, but also has the characteristics of high strength, wear resistance, dirt resistance and the like.

The invention relates to a corrosion-resistant carbon-based composite material and a preparation method thereof, and belongs to the technical field of carbon-based composite materials. According to the invention, the modifier is self-made, the modifier and oxalic acid are used together for doping aniline to obtain doped polyaniline, the doped polyaniline, high-density polyethylene and carbon nanotubes are blended to obtain the corrosion-resistant carbon-based composite material, phosphate groups in the modifier realize flame retardance, and the corrosion resistance of the carbon-based composite material is greatly improved. The modifier can form a complex with a metal wire core, and a hydrophobic protection layer formed by the modifier and long-chain alkyl blocks invasion of water molecules and chemical media together, so that the material is endowed with excellent corrosion resistance, and in addition, an aromatic heterocyclic structure in the modifier is matched with the long-chain alkyl while improving the overall heat resistance of the material, so that the corrosion resistance of the material is improved. The polyaniline and the carbon nanotubes are uniformly dispersed in a polyethylene matrix, and the interface bonding property among the polyaniline, the carbon nanotubes and the polyethylene matrix is enhanced, so that the overall conductivity and corrosion resistance of the material are improved.

The invention provides an MXene multi-element functional nano composite material and a preparation method, and relates to the technical field related to anticorrosive paints.The two-dimensional lamellar nano materials such as carbon nano onion, graphene and an MXene precursor are subjected to surface modification through polyaniline, the interlayer distance of the materials is effectively increased, the structural stability and dispersing performance of the materials are improved, and the anti-corrosion performance of the materials is improved. The compact organic compounding of quaternary components such as carbon nano onion, MXene, graphene, polyaniline and the like under the nanoscale is realized, the dispersion state of a two-dimensional sheet material and the microstructure of a composite product are effectively improved, and the corrosion resistance of the MXene multi-element nano composite anticorrosive paint is improved; through polymerization of a secondary doped polyaniline nanofiber material modified by carbon nano onion, graphene and MXene, a template is provided for growth of a polymer skeleton, a compact net structure is formed, and the technical problems of easy agglomeration, relatively short fiber size, insufficient film forming compactness and the like in the polyaniline in-situ polymerization process are successfully solved.

The invention relates to a flexible ammonia concentration and distance double-parameter sensing element and a preparation method thereof, and belongs to the technical field of flexible sensors. According to the sensing element, a polyimide (PI) flexible substrate with a central electrode lead is used as a substrate, and a spiral carboxylated multi-walled carbon nanotube and dodecylbenzene sulfonic acid doped polyaniline composite material (MWCNT-COOH-DBSA-PANI) is used as a sensitive material; according to the sensing element, the distance is detected through an eddy current effect generated by a spiral sensitive material, and the ammonia gas concentration is detected by virtue of the synergistic gas-sensitive characteristics of MWCNT-COOH and DBSA-PANI; wherein the DBSA-PANI is used as a p-type semiconductor material and endows the sensor with the capability of detecting ammonia gas (NH3) at normal temperature, the MWCNT-COOH is used for constructing a three-dimensional conductive network and is connected with the DBSA-PANI, a rough surface structure formed by the MWCNT-COOH provides more active sites for NH3, and the NH3 adsorption capability of the sensing element is enhanced. The sensing element prepared by the invention has the advantages of flexibility, simple structure and convenience in attachment, and is suitable for synchronously sensing the ammonia concentration and distance between narrow curved surface layers of complex industrial equipment.

Disclosed herein is a dental composite with controlled debonding capability using heat and electric field. The dental composite includes a resin matrix phase, inorganic fillers, thermo-electric responsive agents, an initiator system, and coupling agents. The resin matrix phase includes an amount of bisphenol A-glycidyl methacrylate (Bis-GMA), an amount of triethylene glycol dimethacrylate (TEGDMA), and an amount of polyethylene glycol dimethacrylate (PEGDMA). The inorganic fillers include an amount of silane-modified silica particles and an amount of barium titanate (BaTiO₃). Thermo-electric responsive agents include an amount of doped polyaniline and an amount of polypyrrole. The initiator system includes an amount of benzoyl peroxide and an amount of camphorquinone. The coupling agents include an amount of γ- Methacryloxypropyltrimethoxysilane.

This invention provides an explosion-proof elastomer coating material containing secondary doped polyaniline and its preparation method, relating to the field of flame-retardant and explosion-proof composite materials. The invention involves simultaneously adding graphene and carbon nanotubes to the explosion-proof elastomer coating material. The amino groups in the carbon nitride hybrid composite material containing secondary doped polyaniline react with the molecular chains of the polyurea explosion-proof elastomer coating material, generating a strong interfacial effect that reduces the surface energy of the coating material. Furthermore, the carbon nitride hybrid material in the graphene and carbon nanotubes and the carbon nitride hybrid composite material is uniformly dispersed in the polyurea explosion-proof elastomer coating material, forming a maze effect. The presence of ammonium polyphosphate further enhances the maze effect, thereby improving the hydrophobicity of the coating surface while simultaneously hindering the heat transfer performance of the coating. The synergistic effect with polyphosphoric acid (APP) improves the flame-retardant performance of the polyurea explosion-proof elastomer coating material and suppresses the release of smoke and toxic gases.

The invention relates to the technical field of efficient utilization of raffinate acid and functional materials, and discloses a raffinate acid doped polyaniline derived carbon material and a preparation method and application thereof, and the preparation method comprises the following steps: S1, adding raffinate acid into an aqueous solution containing aniline and an oxidizing agent; s2, after the mixed system is subjected to a polymerization reaction, freeze drying is performed to obtain raffinate acid doped polyaniline; s3, performing high-temperature treatment on the raffinate acid doped polyaniline to obtain a multi-element doped derivative carbon material; the preparation process of the carbon material is simple, complex equipment is not needed, the carbon material can be applied to the field of supercapacitors by combining the double-electrode-layer capacitance characteristic and the pseudocapacitance characteristic of the carbon material doped with multiple elements, the carbon material provides a new route for high-value utilization of the raffinate acid, excessive impurity removal treatment does not need to be conducted on the raffinate acid, and the cost is low. And the process cost is saved, and high social benefits and economic benefits are achieved.

The present disclosure provides compositions, articles thereof, and methods of forming compositions. In at least one aspect, a composition includes (1) an epoxy, (2) an amino or amido hardener, (3) a polyaniline, (4) a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a salicylate, a benzoate, a glycolate, a phosphate, a sulfonate, an oxalate, or combination(s) thereof; and (5) a pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof. The polyaniline+dopant comprises greater than 6 wt %, by weight of the composition. In at least one aspect, a method includes introducing an acid form of a polyaniline to a hydroxide to form a polyaniline hydroxide. The method includes introducing a dopant to the polyaniline hydroxide to form a doped polyaniline.

The invention discloses a composite anti-corrosion coating based on modified polyaniline and a preparation and application method thereof, and belongs to the technical field of metal anti-corrosion materials. The composite coating is prepared by taking epoxy resin (EP) and epoxy gutta-percha (EEUG) as matrixes and taking BTA (at) SiO2-PANI as a functional filler through a specific process, wherein BTA (at) SiO2-PANI is obtained by modifying citric acid doped polyaniline (CA-PANI) after benzotriazole (BTA) is loaded with nano silicon dioxide (SiO2). Through synergistic modification of multiple components, the problems that a traditional epoxy coating is large in brittleness, weak in adhesive force and insufficient in corrosion resistance durability are solved, BTA (at) SiO2-PANI and an EP / EEUG matrix form a double-cross-linked network structure, and triple corrosion resistance mechanisms of physical barrier, metal passivation and corrosion inhibitor slow release are achieved. After the composite coating is soaked in a 3.5% NaCl solution for 30 days, the impedance value can reach 1.62 * 10 < 10 > omega.cm < 2 >, the corrosion inhibition efficiency reaches up to 99.24%, and the composite coating has excellent mechanical properties and can be widely applied to protection of metal components in marine environments and various corrosive media.

The present application relates to the field of coating, disclose a kind of composite fireproof coating and its application in fireproof glass, the composite fireproof coating includes: epoxy resin, functional composite filler, functionalized organopolysiloxane, curing agent, diluent, accelerator;Functional composite filler is formed by using sol-gel method to load mesoporous silica on the surface of basalt flake to form composite filler, then in situ polymerization phytic acid doped polyaniline coating on the surface of composite filler and using the chelation of phytic acid introduces zinc-iron transition metal ions to make;Functionalized organopolysiloxane is made by using the hydrolysis polycondensation reaction of functionalized silane coupling agent;Functionalized silane coupling agent is made by substitution of functionalized intermediate prepared by the reaction of melamine, p-hydroxybenzaldehyde and DOPO and 3-chloropropyl triethoxysilane, the coating prepared by the present application has high hardness, good scratch resistance, and also has good uv resistance, corrosion resistance and flame retardant fire resistance.

The invention provides a high-temperature-resistant PE material and a preparation method thereof.The specific preparation method comprises the following steps that S1, all components are weighed by weight, polyethylene, nylon 6, maleic anhydride grafted polyethylene, nano flake graphite, tannic acid powder and metal ion doped polyaniline foam are mixed, and mixed powder is obtained; s2, the mixed powder is subjected to ball milling, 10 milling balls with the diameter being 3 cm are selected for ball milling, ball milling is conducted for 80-150 min at the speed of 300-400 rpm / min, and a mixture is obtained; s3, the mixture is placed in a co-rotating twin-screw extruder to be melted and extruded into sheets, the temperatures of a machine barrel are 180-190 DEG C, 210-230 DEG C, 240-260 DEG C, 260-270 DEG C and 260-270 DEG C respectively, the temperature of a die head is 260-270 DEG C, and the high-temperature-resistant PE material is obtained. According to the invention, the nano flake graphite and the metal ion doped polyaniline foam synergistically improve the mechanical properties and heat resistance of the PE material.

The invention discloses an ethylene-vinyl acetate composite material based on TEMPO, and belongs to the technical field of high polymer materials, aniline oxidation is induced through a methyl orange soft template, boric acid is added into a ferric trichloride / ammonium persulfate system to prepare a boron-doped polyaniline nanotube, and the boron-nitrogen-doped carbon nanotube is formed through segmented calcination in an inert atmosphere. The preparation method comprises the following steps: firstly, preparing a flame-retardant filler, then carrying out strong acid oxidation to realize carboxylation and improve the interfacial activity of the filler, then carrying out polyurethane grafting and double bond introduction on the filler by utilizing an isocyanate-terminated prepolymer to enhance the compatibility of the filler with a matrix, meanwhile, carrying out surface modification on magnesium hydroxide by adopting a silane coupling agent to improve the flame-retardant efficiency and the interface bonding force, and adding TEMPO in a mixing stage, so that the flame-retardant property of the flame-retardant filler is improved. Free radical regulation and crosslinking homogenization are achieved, the mechanical effect and long-term antistatic performance of the composite material are further improved, and the obtained material has high tensile strength, excellent flame retardance and long-term antistatic performance and is suitable for the fields of wire and cable sheaths, rail traffic wire harnesses and the like.