370 results about "Functionalized graphene" 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 present invention relates to the technical field of nanofiltration membranes, and particularly relates to a preparation method for a positively charged nanofiltration membrane for improving a "trade-off" effect. The preparation method comprises the following process: sequentially adding a water phase and an oil phase to the surface of a support layer to perform a reaction, so as to prepare a polyamide layer; pouring in a functionalized graphene dispersion; and sequentially placing same into an N,N-dimethyl propane diamine solution, a sodium borohydride solution and an iodomethane solution to perform a reaction, so as to obtain a nanofiltration membrane, wherein the functionalized graphene is pyrrolidone-based graphene. According to the present invention, a mixture of piperazine and polyethyleneimine is used as a water phase and is subjected to interfacial polymerization with an oil phase 1,3,5-trimesoyl chloride on the surface of the support membrane; and by means of the compounding of micromolecular piperazine and macromolecular polyethyleneimine, the rapid formation of a polyamide layer is promoted, the distance of a system cross-linked network is increased, a positively charged polyamide layer having a large pore diameter and good hydrophilicity is formed, and a good water flux and a good rejection rate are achieved, thereby improving the "trade-off" effect.

The invention discloses a preparation method of a photocatalytic nanofiltration membrane based on IL-GQDs. The method comprises the following steps: pretreating bagasse, and applying the pretreated bagasse and imidazole ionic liquid (IL) to preparation of ionic liquid functionalized graphene quantum dots (IL-GQDs); the IL-GQDs are uniformly distributed on the surface of the base membrane by utilizing a vacuum-assisted low-temperature interfacial polymerization technology to form an ultrathin photocatalytic active layer; and finally, curing and cleaning to obtain the photocatalytic nanofiltration membrane based on the IL-GQDs. According to the prepared IL-GQDs, the membrane surface is endowed with high specific surface area and excellent photocatalytic activity, and meanwhile, an additional water transmission channel can be established under the condition that the pore diameter of the membrane is not changed, so that the problem of trade-off of a traditional membrane is solved. In addition, through combination of low-temperature and vacuum-assisted interfacial polymerization technologies, the membrane structure is more uniform and compact, defects on the surface of the membrane are reduced, and the stability and the anti-pollution capacity of the membrane are improved. The membrane disclosed by the invention shows relatively high water flux, salt recovery rate and long-term stability in water treatment application.

The invention discloses a water body heavy metal ion pollution treatment adsorption filtering membrane and a preparation method thereof, and relates to the technical field of water treatment. When the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared, graphene oxide sequentially reacts with 3-diethylaminopropylamine, tetrabromophenyl porphyrin and N, N-diethyl allylamine, and functionalized graphene oxide is prepared; the preparation method comprises the following steps: reacting cellulose with 4 '-bromo-2, 2': 6 ', 2' '-terpyridyl and maleic anhydride in sequence to prepare modified cellulose; the preparation method comprises the following steps: reacting sodium alginate with propylene oxide to prepare modified sodium alginate; the modified sodium alginate, the modified cellulose, the functionalized graphene oxide, trans, trans-1, 3-butadiene-1, 4-dicarboxylic acid and a photoinitiator are subjected to a reaction, a membrane is prepared, and the water body heavy metal ion pollution treatment adsorption filtering membrane is prepared. The water body heavy metal ion pollution treatment adsorption filtering membrane prepared by the invention has good antibacterial and photocatalytic organic matter degradation capabilities.

The invention belongs to the technical field of grouting materials, and particularly relates to a graphene modified ternary composite ultrafast curing grouting material and a preparation method thereof. The technical scheme is as follows: the graphene modified ternary composite ultrafast curing grouting material comprises the following components: a main agent and a curing agent in a weight ratio of 4: 1, wherein the main agent is prepared from the following components in parts by weight: 30 to 33 parts of modified nano calcium silicate, 0.8 to 0.9 part of functionalized graphene, 3.8 to 4.2 parts of intelligent response type expansion factors, 2.5 to 3.0 parts of nanoscale molecular sieves and 18 to 20 parts of surface modified composite mineral admixtures; the main agent is prepared by adopting a special dispersion medium; the curing agent is prepared from the following components in parts by weight: 1.5 to 1.8 parts of amino-functionalized carbon nanotubes, 9 to 10 parts of an active site initiator, 4.5 to 5.0 parts of an interface coupling agent composite system and 2.5 to 2.8 parts of an intelligent regulation and control aid; the curing agent is prepared by a special carrier. The invention provides a graphene modified ternary composite ultrafast curing grouting material and a preparation method thereof.

The invention relates to an adsorbent and a preparation method and application thereof, the adsorbent comprises a polymer matrix and a nanofiller uniformly embedded in the polymer matrix, the polymer matrix comprises a calcium / boron cross-linked polyvinyl alcohol-sodium alginate blend, and the nanofiller is sulfonic acid / carboxylic acid functionalized graphene oxide; the mass fraction of the nano filler in the adsorbent is 0.05%-0.60%; wrinkles and irregular hole structures are distributed on the surface of the adsorbent. The adsorbent is used for removing tritium in water and is high in adsorption capacity, stable in structure and good in recycling performance. The removal rate of tritium in the single-stage adsorption process is greater than 8.5%, and the removal rate of tritium in the third-stage adsorption process is 19.4-57.7%.

The invention discloses a high-strength modified polyethylene composite fiber and a preparation method thereof, and belongs to the technical field of fiber materials, carboxylated mesoporous silica microspheres are used as a matrix, the surface of the matrix is coated with a graphene sheet layer, then hydroxyethyl methylacrylate is grafted, functionalized graphene / mesoporous silica microspheres are obtained, the functionalized graphene / mesoporous silica microspheres are used as a filler, and the high-strength modified polyethylene composite fiber is prepared. When the polyethylene composite fiber is applied to a ship cable, the overall weight of the ship cable can be reduced, and relative slippage can be generated between graphene lamellas and mesoporous silica microspheres, so that stress is dispersed, and the strength of the polyethylene composite fiber is improved; a hydrophobic alkane long chain is introduced through esterification of the graphene / mesoporous silica microspheres and hydroxyethyl methylacrylate and graft modification of hydroxyethyl methylacrylate, so that the hydrophobic alkane long chain has good compatibility with white oil, and the microspheres are prevented from approaching and gathering by a steric hindrance effect, so that the hydrophobic alkane long chain is more uniformly and stably dispersed in the white oil.

The invention discloses a polyurethane elastomer for sealing and a preparation method thereof, and relates to the technical field of polymer materials, the polyurethane elastomer comprises polyether polyol, diisocyanate, a catalyst, a cross-linking agent, a stabilizer and a plasticizer; the polyurethane elastomer further comprises additives, the additives specifically comprise functionalized graphene oxide, an ionic liquid toughening agent, self-repairing microcapsules and a carbon quantum dot toughening agent, and the polyurethane elastomer is prepared based on the materials. According to the polyurethane elastomer for sealing and the preparation method thereof, the sealing property, the tensile property, the wear-resisting property and the self-repairing property of the material are remarkably improved. The functionalized graphene oxide, the ionic liquid toughening agent, the self-repairing microcapsule and the carbon quantum dot toughening agent are introduced into the polyurethane, so that the excellent performance of the polyurethane elastomer in high-stress, high-abrasion and damage environments is realized. The polyurethane elastomer not only has lower leakage rate and higher tensile strength, but also can be quickly self-repaired after being worn.

The invention relates to the technical field of hydrogen storage material preparation, in particular to a preparation method of a nano magnesium-based hydrogen storage material based on parameter optimization. The preparation method comprises the following steps: preparing a solution A from functionalized graphene powder, tetrabutyl titanate and isopropanol, preparing a solution B from scandium nitrate monohydrate and isopropanol, mixing A and B to obtain gel, grinding, calcining, analyzing a state difference index, optimizing feedback error control temperature to obtain powder A by mixing a catalyst and magnesium powder, heating, preserving heat, cooling, preserving heat and cooling the powder A to obtain powder B, and preparing the graphene / scandium nitrate / magnesium powder composite material. And ball-milling the powder B to obtain the nano magnesium-based hydrogen storage material. According to the method, the influence of the heat transfer non-uniformity characteristic on the calcination treatment temperature error in the catalyst calcination process is analyzed, the temperature data at different time points are integrally divided, and the difference is analyzed, so that the influence of the non-uniformity characteristic on the feedback error analysis on the time interruption characteristic on the temperature data change is reduced; the capability of coping with the influence of the non-continuous difference of calcination treatment on feedback error analysis is improved, and the performance of the nano magnesium-based hydrogen storage material is improved.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention provides a preparation method and application of red nano-selenium particles, and relates to the technical field of nano-medicines.The preparation method comprises the steps that sodium selenite is dissolved in ultrapure water, silicate microspheres containing copper, zinc and aluminum are added, the pH value is 4.8, 1.5 M of ascorbic acid solution is dropwise added while stirring, the temperature is increased till solid ascorbic acid is added, the pH value is adjusted through NaOH, and nano-selenium suspension liquid is obtained through stirring reaction; the preparation method comprises the following steps: mixing and stirring a nano-selenium suspension, a sodium alginate sulfydryl graphene oxide mixture and a chitosan oligosaccharide citric acid buffer solution, centrifugally washing, and freeze-drying to obtain red nano-selenium particles, and preparing the copper-zinc-containing aluminosilicate microspheres through mesoporous template calcination and copper-zinc co-doping. The red nano-selenium particles prepared by the method have a core-shell structure, uniform particle size, high oxidation resistance and remarkable interface bonding strength.

The invention relates to the technical field of flame-retardant conveying belts, in particular to a preparation method of a high-wear-resistance flame-retardant environment-friendly graphene / basalt fiber / rubber composite material and a laminated conveying belt prepared through the preparation method. The preparation method mainly comprises the following steps: (1) preparing functionalized graphene and basalt fiber particles; and (2) preparing the graphene and basalt fiber / rubber composite material. The graphene and the basalt fiber are compounded and used in the belt core framework material, the core rubber and the cover rubber of the conveying belt, so that the conveying belt has the characteristics of high strength, high modulus, high temperature resistance, difficulty in deformation, environment friendliness, flame retardance and static electricity resistance, and the application requirements of the rubber conveying belt in different use environments are met.

The invention belongs to the technical field of graphene material preparation, and particularly relates to a universal electrochemical preparation method of covalent functionalized graphene (CFG), which comprises the following steps: (1) in an oil seal state of light sealing oil, performing electrochemical intercalation treatment on a graphite electrode by using concentrated sulfuric acid; (2) after intercalation is completed, light sealing oil is injected into the electrolytic bath while concentrated sulfuric acid is discharged; (3) in the electrolytic bath, constructing a micro-liquid membrane reaction zone by using density and intermiscibility differences of three working liquids, namely light sealing oil, aqueous electrolyte and heavy sealing oil, and enabling the micro-liquid membrane reaction zone to be in contact with the intercalated graphite electrode to generate electrochemical oxidation to generate CFG; (4) controlling the micro-liquid membrane reaction area to directionally move relative to the intercalated graphite electrode, so that the whole intercalated graphite electrode is gradually and completely converted into CFG; and (5) putting the CFG structure after the reaction into a solvent, carrying out mechanical stripping to prepare a dispersion liquid of CFG, and drying to obtain CFG powder.

The invention provides an antistatic talcum powder and graphene composite reinforced material and an in-situ polymerization process thereof, and belongs to the technical field of polymer composite materials. According to the antistatic talcum powder and graphene composite reinforced material and the in-situ polymerization process thereof, the antistatic talcum powder and graphene composite reinforced material is prepared from the following raw materials in parts by weight: 100 parts of matrix resin, 5-30 parts of modified talcum powder, 0.5-5 parts of functionalized graphene and 0.1-2 parts of an antistatic synergist, the modified talcum powder is subjected to surface treatment by a silane coupling agent, the particle size range is 1-10 [mu] m, and the functionalized graphene is graphene oxide or reduced graphene oxide. Through the synergistic effect of the silane coupling agent modified talcum powder and the functionalized graphene and in combination with the ionic liquid antistatic agent, the surface resistance of the material is remarkably reduced. Nanoscale dispersion is realized by adopting an in-situ polymerization process, and the method is suitable for the field of high-performance engineering plastics.

The invention provides an antistatic polypropylene material as well as a preparation method and application thereof, and belongs to the technical field of polypropylene materials. The preparation method comprises the following steps: modifying graphene, preparing a graphene / titanium dioxide compound, reacting, and performing extrusion molding. The method comprises the following reaction steps: putting a functionalized graphene / titanium dioxide compound into a reaction container, introducing N, N-dimethylformamide, uniformly stirring, adding modified graphene, dicyclohexylcarbodiimide and 4-dimethylaminopyridine, heating to 73-77 DEG C, carrying out ultrasonic treatment, and after ultrasonic treatment is finished, carrying out heat preservation stirring for 1.8-2.2 hours to obtain the graphene / titanium dioxide composite material. Then heating to 116-123 DEG C at the speed of 1.7-2.3 DEG C / min, stirring for 1.8-2.2 hours while keeping the temperature, after stirring is finished, filtering, washing, freeze-drying, and naturally recovering to room temperature, so as to obtain a graphene-graphene / titanium dioxide compound; the antistatic polypropylene material prepared by the invention is good in antistatic property, excellent in mechanical property and good in aging resistance.

The invention discloses a graphene nano long-acting anticorrosive paint and a preparation method thereof, and relates to the technical field of anticorrosive paints.The graphene nano long-acting anticorrosive paint is prepared from 100 parts of epoxy resin and 1.0 part of a functionalized graphene mixture; the functionalized graphene mixture comprises a component 1, namely flexible interface-aminosilane functionalized graphene, and a component 2, namely long-chain alkyl grafted hydrophobic graphene; wherein the relative weight ratio of the component 2 in the functionalized graphene mixture, defined as the weight of the component 2 / (the weight of the component 1 + the weight of the component 2), is in the range of 0.1 to 0.4. According to the invention, the dual functionalized graphene is cooperated, and gradient curing and thickness-ratio self-adaptive adjustment are combined. The obtained coating has excellent internal stress buffering capability, stable surface hydrophobicity and wide adaptability to different construction thicknesses, and is excellent in corrosion-resistant comprehensive performance.

The invention discloses a preparation method and application of an amino-functionalized graphene quantum dot modified MXene loose nanofiltration membrane. The preparation method comprises the following steps: mixing an MXene nanosheet dispersion liquid with an aminated graphene quantum dot aqueous solution, and preparing an amino functionalized graphene quantum dot / MXene mixed dispersion liquid by adopting a self-assembly method; and filtering and depositing the obtained mixed dispersion liquid on the modified base membrane to obtain the MXene loose nanofiltration membrane. According to the preparation method disclosed by the invention, the zero-dimensional aminated graphene quantum dots are creatively embedded into the MXene nanosheets, so that the MXene loose nanofiltration membrane which is stable in structure and regular in stacking is prepared. The nanofiltration membrane has good separation performance on different dyes and inorganic salts while effectively inhibiting water swelling, is a next-generation separation membrane with high stability and high selectivity, is mild and simple in preparation process, and has a wide application prospect.

The invention relates to the technical field of wire and cable materials, and discloses a high-temperature-resistant and aging-resistant wire and cable material and a preparation method thereof.The high-temperature-resistant and aging-resistant wire and cable material is prepared from, by weight, modified polyetherimide, silane modified polyolefin, organic montmorillonite, surface modified nanometer aluminum oxide and surface functionalized graphene, an antioxidant, a silane coupling agent and a processing lubricant; the preparation method of the high-temperature-resistant and aging-resistant wire and cable material comprises the following steps: weighing and preparing raw materials; carrying out surface modification treatment on the nanofiller; drying the raw materials; premixing the components; reacting, extruding and granulating; and cooling, bracing and dicing. By adopting the technical scheme of synergistic application of the surface functionalized graphene and the silane modified polyolefin, the technical effect of remarkably improving the thermal stability and the mechanical property of the composite material is achieved, the problem that the performance of a traditional scheme is unstable at high temperature is solved, and the phenomena of filler agglomeration and material degradation are avoided.

The invention discloses a porous adsorption material for water environment purification treatment and a preparation method thereof, and belongs to the technical field of water body purification materials. The material is prepared from 30-50 parts of a matrix material, 5-15 parts of a cross-linking agent, 10-25 parts of a pore-foaming agent, 1-5 parts of a stabilizer, 10-15 parts of nano silicon dioxide and 5-8 parts of carboxyl functionalized graphene. According to the preparation process, a multi-stage pore structure is formed through hot bath prepolymerization, ultrasonic dispersion and template pore-forming technologies. The material has excellent adsorption performance on metal ions such as lead, cadmium, chromium and calcium and PFAS pollutants, experiments show that the calcium ion removal rate reaches 99.68%, and the adsorption capacity retention rate exceeds 90% after multiple times of regeneration.

The invention discloses a high-conductivity porous polymer composite material and a preparation method thereof, and relates to the technical field of conductive composite materials. The high-conductivity porous polymer composite material is prepared by mixing polyether-ether-ketone, amino-functionalized graphene, a silver nanowire / carbon nanotube hybrid filler, a porous polyimide microsphere carrier, an ionic liquid and an antioxidant. The preparation method comprises the following steps: preparing amino-functionalized graphene; preparing a hybrid filler microsphere complex; performing mixing; preparing a porous prefabricated body; and carrying out mould pressing and shaping. According to the composite material disclosed by the invention, through multi-scale structural design and environment-friendly process innovation, high conductivity, high-strength mechanical properties and light weight are realized under the condition of low filler addition amount.

The invention discloses a silane functionalized graphene oxide / waterborne polyurethane hydrophobic coating and preparation, and belongs to the technical field of paints.The silane functionalized graphene oxide / waterborne polyurethane hydrophobic coating is prepared by the steps that natural graphite powder serves as a raw material, and graphene oxide is prepared through a Hummer method; n-(beta-aminoethyl)-gamma-aminopropyl trimethoxy silane is grafted to the surface of the graphene oxide through a chemical reduction method, and GO-AATS composite filler is obtained; then, castor oil is used as a soft segment, isophorone diisocyanate is used as a hard segment, and a series of GO-AATS-WPU emulsions are prepared. According to the silane functionalized graphene oxide / waterborne polyurethane hydrophobic coating and preparation, chemical bonds are formed between graphene oxide and waterborne polyurethane, and the interfacial compatibility of graphene oxide and waterborne polyurethane is improved, so that the mechanical property, water resistance, corrosion resistance and thermal stability of the waterborne polyurethane coating are improved.

The invention relates to the technical field of coatings, and discloses a functionalized graphene modified polyurethane composite coating, compared with a labyrinth shielding structure of a traditional polyurethane coating, the functionalized graphene modified polyurethane composite coating added with functionalized graphene can form a more compact film-shaped structure through layer-by-layer superposition of two-dimensional sheet structures of graphene, so that the graphene modified polyurethane composite coating has a good shielding effect. By means of the nanometer size, high surface hydrophobicity and conductivity of graphene, the corrosion rate of metal is reduced, the corrosion resistance and mechanical performance of a coating are improved, aminopyridine can improve the corrosion current and impedance value of a polyurethane coating film, the corrosion resistance of the polyurethane coating film is improved, and the corrosion resistance of the polyurethane coating film is improved. Through a blending preparation means, the chain segment of polyvinyl chloride is compatible with the flexible chain segment of polyurethane, and the mechanical property of the polyurethane coating is further improved.

The invention relates to a preparation method of a modified carbon fiber / epoxy resin composite material, which is characterized in that polyethyleneimine functionalization treatment of graphene oxide is utilized in surface modification of carbon fibers, and after the graphene oxide is grafted to the surfaces of the carbon fibers, the surface roughness of the carbon fibers can be improved; the surface activity of the functionalized graphene oxide is increased, so that the surface activity of the grafted carbon fiber is remarkably increased, and the bonding capacity between the fiber and the resin is greatly enhanced through the physical and chemical dual effects. Compared with direct grafting of the graphene oxide, the surface functionalization of the graphene oxide can obviously improve the characteristic that the graphene oxide is easy to agglomerate. Compared with an unmodified composite material, the tensile property of the composite material disclosed by the invention is improved by 49.82%.

The invention relates to the technical field of electronic materials, and discloses a nano-structure-based flexible electronic material preparation method, which comprises: 1, dissolving 80-85% of a hydrogenated styrene-butadiene block copolymer (SEBS) in a tetrahydrofuran (THF) and N-methyl pyrrolidone (NMP) mixed solvent to form a matrix solution; 2, 12%-15% of functionalized graphene (EGO-PP) with the surface grafted with PEDOT: PSS is added into the matrix solution, and ultrasonic-shearing synergistic dispersion treatment is carried out; and step 3, performing programmed cooling control on the dispersion system, and cooling from 80 DEG C to 25 DEG C in stages to complete nano-network self-assembly. Matching ([delta] [delta] t; compared with the prior art that a blending method depends on high filler loading, the method provided by the invention has the advantages that a three-dimensional interpenetrating conductive network is formed by the functionalized graphene under the ultralow content of 1.8 vol% by using an ultra-low (0.5, 0.5) and Spinodal decomposition mechanism, and compared with a blending method which depends on high filler loading, the core contradiction of material embrittlement caused by high filler concentration is solved, and the flexibility is improved by 240% or above under the same conductivity.

The invention provides a preparation method and application of a wear-resistant and corrosion-resistant glass flake coating, and belongs to the technical field of coatings. The coating comprises a component A and a component B, wherein the component A comprises an epoxy resin matrix, a reinforcing filler, a self-repairing microcapsule and an auxiliary agent; the epoxy resin matrix is formed by compounding at least two different types of epoxy resin components, the first epoxy resin component is matrix resin, and the second epoxy resin component is toughening modified resin; the reinforcing filler comprises glass flakes subjected to surface modification, functionalized graphene and nano zirconium dioxide particles; the self-repairing microcapsule comprises a microcapsule wall and a self-repairing agent coated in the microcapsule wall; the auxiliary agent comprises a rheological auxiliary agent, a defoaming agent and a wetting dispersant; and the component B comprises a curing agent and a curing accelerator. The comprehensive wear resistance and corrosion resistance of the coating can be remarkably improved, and the construction adaptability of the coating is improved.

In one aspect, a sensor for detecting a drug of abuse (DOA) in a sample is disclosed. In some embodiments, the sensor includes a graphene layer, a plurality of binding agents, which bind to the DOA, coupled to said graphene layer to generate a functionalized graphene layer, and a plurality of electrical conductors electrically coupled to said functionalized graphene layer for measuring an electrical property of said functionalized graphene layer. While in some embodiments, such binding agents are monoclonal antibodies, in other embodiments they are polyclonal antibodies.

The invention discloses a self-repairing graphene-based wind driven generator blade protection film and a preparation method thereof, and relates to the technical field of wind power generation equipment protection. The protection film adopts a gradient structure of a bonding buffer layer, a self-repairing functional layer and a multifunctional protection layer; the self-repairing functional layer comprises a hybrid network formed by hydroxylated functionalized graphene and elastomer particles and bionic packaging microcapsules, inner layer capsules containing graphene quantum dot reinforced resin and a latent catalyst curing agent are packaged in the microcapsules, multiple times of repairing of the same damaged area can be achieved, and the repairing strength is high; the multifunctional protective layer endows the coating with super-hydrophobic, anti-icing and ultraviolet-resistant functions through fluorinated graphene and nano TiO2 (at) ZnO composite particles; the preparation process is mature, the comprehensive protection performance is excellent, and the coating is suitable for wind driven generator blade protection in the severe environment.

The invention discloses functionalized graphene for removing tritium from radioactive waste liquid and a preparation method and application of a graphene film, the functionalized graphene is a flaky substance formed by stacking lamellar structures, and the distance between the stacked lamellar structures is 7.5-8.7. The preparation method comprises the following steps: preparing graphene oxide powder; performing sulfonation on the graphene oxide powder to obtain sulfonated graphene aerogel; performing carboxylation on the graphene oxide powder to obtain carboxylated graphene; and mixing and stirring the sulfonated graphene aerogel and carboxylated graphene to obtain the functionalized graphene. The tritium in the tritium-containing liquid is separated by utilizing the membrane formed by the functionalized graphene, and the tritium removal technology has the advantages of mild reaction conditions, low energy consumption, easiness in large-scale production and the like.

The invention belongs to the technical field of functional films, and particularly relates to a preparation method of a high-thickness graphene heat conduction film. Comprising the following steps: (1) low-functionalized graphene powder is taken as a raw material, the content of an additive in the raw material is not more than 20wt%, and the solvent content is not more than 10wt%; (2) carrying out hot press molding on the raw materials in the step (1) at the temperature of 25-300 DEG C to obtain a dense graphene thick film; and (3) carrying out heat treatment on the dense graphene thick film in the step (2) in an atmosphere furnace with the temperature of 1000-3300 DEG C for a certain time to ensure interlayer ordering and crystal graphitization, so as to obtain the graphene heat-conducting film with high thickness and high heat conductivity, the thickness of the graphene heat-conducting film can reach more than 200 microns, and the heat conductivity of the graphene heat-conducting film can reach more than 1300W / mK. The preparation method is simple in operation process, low in cost, easy in scale amplification and suitable for preparation and performance improvement of the ultra-high-thickness graphene heat-conducting film, and the application range of the graphene film in the fields of heat management, electromagnetic shielding, nuclear technology, high-end instrument equipment and the like is widened.

The invention discloses a corrosion-resistant cable material, an energy storage cable and a preparation method of the corrosion-resistant cable material, and belongs to the technical field of cables. The corrosion-resistant cable material comprises the following raw materials: a hexadecylamine functionalized graphene bentonite copolymer, modified epoxy resin E5, chlorinated polyethylene, a plasticizer, paraffin, mica powder and an antioxidant. The hexadecylamine functionalized graphene bentonite copolymer is obtained by adding acidified bentonite into a graphene dispersion liquid, stirring and then carrying out hydrophobic modification through hexadecylamine; the modified epoxy resin E51 and 5-aminosalicylic acid are subjected to a hydrothermal reaction to obtain nitrogen-doped quantum dots, the nitrogen-doped quantum dots are ultrasonically mixed with ethyl alcohol, then the waterborne curing agent is added, then the epoxy resin E51 is added, and high-speed stirring is performed to obtain the cable material, the cable material has good waterproofness, corrosion resistance and mechanical performance, and stable operation of an energy storage cable can be guaranteed.