1423 results about "Methyl methacrylate" patented technology

The invention discloses a toughened epoxy resin and a curing method thereof, and relates to the technical field of epoxy resins, the toughened epoxy resin comprises the following components: 100 parts of an epoxy resin matrix, specifically a mixture of bisphenol A epoxy resin and alicyclic epoxy resin, 5-35 parts of a composite amine curing agent, and 5-20 parts of a nano toughening agent, in particular to core-shell rubber particles grafted with epoxy groups on the surfaces, the core layer of each core-shell rubber particle is cross-linked polybutadiene, the shell layer of each core-shell rubber particle is polymethyl methacrylate, 0.5-3 parts of an accelerant comprising a bi-component synergistic accelerant, 1-5 parts of an interface enhancer, and a mixture of gamma-glycidyl ether oxypropyl trimethoxy silane and a titanate coupling agent, a bisphenol A type epoxy resin and a specific proportion of alicyclic epoxy resin are combined to construct an epoxy resin matrix according to a mass ratio of 2: 1, the epoxy resin matrix is matched with a composite amine curing agent prepared by carrying out a special three-step reaction on long-chain polyether diamine, aromatic diamine and anhydride, and key parameters such as molecular weight, functionality and molar ratio of the components are accurately regulated and controlled.

The invention discloses a hydrophilic polyacrylate / epoxy silica sol composite coating and a preparation method thereof. The composite coating is prepared from a polyacrylate epoxy silica sol solution containing carboxyl and a polyethylene glycol side chain through blending, coating, drying and heating crosslinking. The polyacrylate is synthesized by taking methyl methacrylate, methacrylic acid, hydroxyethyl methylacrylate and allyl polyethylene glycol as comonomers through a solution free radical copolymerization method, and the epoxy silica sol solution is prepared by taking tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane as raw materials through a solution polymerization method. The composite material is prepared through a sol-gel and core-shell preparation process. The preparation method comprises the following steps: carrying out solution blending on polyacrylate and epoxy silica sol, and carrying out coating, drying and other processes to generate the cross-linked polyacrylate / epoxy silica sol composite coating through a cross-linking reaction between carboxyl and epoxy. The prepared composite coating has the characteristics of long durability, wear resistance, hydrophilicity, antifogging, protein adsorption resistance and the like.

The invention provides a SiO2 / TiO2 / PMMA radiation refrigeration film and a preparation method thereof, and relates to the technical field of passive daytime radiation refrigeration films. The radiation refrigeration film is prepared from the following raw materials: N, N-dimethylformamide, polymethyl methacrylate, silicon dioxide and titanium dioxide. The invention relates to a preparation method of a SiO2 / TiO2 / PMMA radiation refrigeration film. The preparation method comprises the steps of preparing silicon dioxide, preparing titanium dioxide, synthesizing composite sol and preparing the SiO2 / TiO2 / PMMA radiation refrigeration film. The SiO2 / TiO2 / PMMA radiation refrigeration film prepared by the invention has high reflectivity in the ultraviolet-visible-near infrared band and high emissivity in the infrared band, can realize 8.4 DEG C sub-environment refrigeration, and is low in cost and simple in process flow.

The invention discloses a wearable medical monitoring equipment electrode which is composed of a layered structure and comprises a transparent flexible substrate layer which is made of a biocompatible flexible polymer material and is used for providing flexible support and isolating a metal electrode from the skin; the metal grid copper transparent electrode layer is formed on the surface of the transparent flexible substrate layer through a yellow light etching micro-nano processing technology; the conductive gel layer uniformly covers the surface of the metal grid copper electrode layer; the encapsulation layer is formed by spin-coating a polymethyl methacrylate solution on the surface of the conductive gel layer and forming a transparent protection layer after curing; the gradient line width bionic honeycomb-shaped copper grid design is adopted, the light transmittance is kept, meanwhile, the collection efficiency of physiological electric signals is remarkably improved, signal transmission loss is reduced, through the polyacrylamide and nanocellulose composite gel formula and micro-channel dynamic humidity adjustment, signal stability under long-term wearing is ensured, and the application range is wide. The problem of signal distortion caused by dryness of traditional gel is solved.

The invention relates to the technical field of fibers, and discloses an antibacterial and antistatic fiber material based on silver ions and halamine and a preparation method of the antibacterial and antistatic fiber material. The preparation method comprises the following steps: loading a methyl methacrylate-based polymer on the surface of a silver-loaded molecular sieve through an in-situ polymerization method, and grafting a halamine antibacterial monomer chlorinated piperidinol through an ester exchange reaction to obtain an antibacterial agent; the preparation method comprises the following steps: carrying out reaction polymerization on caprolactam, quaternized polyether, polyethylene glycol, 2, 6-dipicolinic acid and adipic acid to obtain an antistatic agent; an antibacterial agent, an antistatic agent and nano-silver are added into chemical fiber slices, the antibacterial and antistatic fiber material based on silver ions and halamine is prepared after melt spinning, and the chemical fiber slices are polyester slices or chinlon slices or polypropylene slices. The fiber material has excellent antibacterial and antistatic properties.

The invention provides a thermoplastic resin composition as well as a preparation method and application thereof. The thermoplastic resin composition is prepared from the following components in parts by weight: 10 to 40 parts of acrylonitrile-butadiene-styrene resin material, 30 to 70 parts of polymethyl methacrylate, 1 to 10 parts of modified hollow ceramic microbeads and 1 to 20 parts of toughening agent, the modified hollow ceramic microbeads comprise hollow ceramic microbeads modified by a coupling agent and stearate. The thermoplastic resin composition disclosed by the invention has the advantages of excellent wear resistance, good sound insulation effect and high surface hardness and impact strength.

The invention discloses a lithium ion battery anti-cracking agent and a preparation method and application thereof.The preparation method is carried out under nitrogen protection and comprises the steps that a first polymer, a second polymer and a modifier are dissolved in a first solvent, and under the action of a catalyst, a reaction is carried out for 4-48 h at the temperature of 60-100 DEG C; and after the reaction is finished, cooling to below 40 DEG C, adding an amine compound, and reacting for 0.5-8 hours to obtain the anti-cracking agent for the lithium ion battery. The first polymer is polyvinyl butyral, and the hydroxyl content of the polyvinyl butyral is 18-21%; the second polymer is a triblock polymer as shown in a structural formula I, and the content of methyl methacrylate in the second polymer is 8-65%; the modifier is maleic anhydride or a maleic anhydride derivative; the catalyst is one of p-toluenesulfonic acid, hydrochloric acid and sulfuric acid. According to the anti-cracking agent, the battery pole piece can be intact and does not crack at high surface density under the condition of relatively low addition amount.

The invention discloses a preparation method of polymer microspheres suitable for a cable sheath material, and belongs to the technical field of microspheres. Comprising the following raw materials in parts by weight: 18-25 parts of acrylic acid, 16-24 parts of methyl methacrylate, 12-18 parts of styrene, 2-6 parts of an emulsifier, 120-150 parts of deionized water, 8-16 parts of modified nano silicon dioxide and 0.2-0.4 part of an initiator. The prepared polymer microspheres can be used for reducing the material consumption of the cable, so that the cable is light; the modified nano silicon dioxide is added, so that the compatibility with an acrylic acid matrix is good, the heat resistance, the oxidation resistance, the water resistance and the corrosion resistance of the microspheres can be improved, and the performance is long and stable; therefore, when the prepared microspheres are used for the cable, the cable can be lightened, the heat resistance, the oxidation resistance, the water resistance and the corrosion resistance of the cable can be remarkably enhanced, the performance is long and stable, and the microspheres have important application value in the technical field of the microspheres.

The invention discloses an environment-friendly deformation-resistant reed wood composite shaving board and a preparation method thereof, and belongs to the technical field of boards. The reed wood composite shaving board is prepared from wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated distarch phosphate, a C30-45 alkyl cetearyl polydimethylsiloxane cross-linked polymer and a PEG-10 polydimethylsiloxane-vinyl polydimethylsiloxane cross-linked polymer according to a specific proportion. The adhesive is prepared from a methyl methacrylate cross-linked polymer, an MDI adhesive and an organic silicon waterproof agent. All the components are matched for use, the shaving board is prepared in a directional mode, the shaving board has excellent mechanical performance, crack resistance and deformation resistance, the environment-friendly performance is improved, and the use amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extract are adopted to replace traditional formaldehyde-containing glue and a mildew-proof and insect-resistant agent, formaldehyde release is effectively avoided, and a healthier home decoration plate choice is provided for consumers.

The invention discloses a high-temperature-resistant perfluoroether rubber preparation method which comprises the following steps: mixing perfluoroether rubber, modified silicon carbide and modified boron nitride nanosheets, adding a cross-linking agent, uniformly mixing, and carrying out segmented vulcanization to obtain the high-temperature-resistant perfluoroether rubber, wherein in the preparation process of the modified boron nitride nanosheet, nano silicon carbide, the boron nitride nanosheet, polymethyl methacrylate, a catalyst and a solvent are uniformly mixed, the surface of a matrix is coated with the mixture, a thin film is formed through drying, the thin film is sintered and crushed, and an intermediate is obtained; and carrying out graft modification on the intermediate by using a silane coupling agent containing a carbon-carbon double bond to obtain the modified boron nitride nanosheet. The perfluoroether rubber prepared by the invention has good thermal conductivity, high temperature resistance and plasma resistance.

The invention relates to a heat dissipation coating composition, a preparation method thereof and application of the heat dissipation coating composition in a battery protection plate, and belongs to the technical field of new energy heat dissipation coatings. According to the preparation method, methyl methacrylate, 2-vinylpyridine, methacrylamide, dipropylene glycol diacrylate, azodiisobutyronitrile and tetradecane are taken as raw materials, a coating dispersion liquid is prepared firstly, then hydroxylated graphene is subjected to polymerization coating by utilizing the coating dispersion liquid based on an in-situ polymerization method, a coating layer with amino and pyridine rings is constructed, and the coating layer with amino and pyridine rings is prepared. The preparation method comprises the following steps: coating a coating particle with amino boron nitride to obtain a coated particle, compounding the amino boron nitride onto the coated particle through addition of amino and epoxy groups by taking ethylene glycol diglycidyl ether containing double-terminal epoxy groups as a bridging agent to prepare a modified composite particle, and blending the modified composite particle with water-borne epoxy resin and other components to obtain the heat-dissipating coating composition. The coating has excellent heat dissipation performance, can still keep a good heat dissipation effect even after being heated and cooled for multiple times, and is suitable for being applied to the battery protection plate.

The invention relates to the technical field of coating liquid, and particularly discloses anti-reflection self-cleaning type coating liquid as well as a preparation method and application thereof. The invention provides anti-reflection self-cleaning type coating liquid. The anti-reflection self-cleaning type coating liquid is specifically prepared from, by weight, 12-18 parts of polymethyl methacrylate, 5-8 parts of composite sol, 3-6 parts of silane, 2-4 parts of inorganic materials, 1-3 parts of an anti-reflection agent and 30-40 parts of a solvent. The composite sol is obtained by carrying out water bath heat preservation reaction treatment on a natural polymer colloid and a styrene-acrylonitrile-glycidyl methacrylate copolymer through a dopamine hydrochloride aqueous solution; the inorganic material is formed by mixing silicon dioxide with the particle size of 10-30 nm and silicon dioxide with the particle size of 40-70 nm according to the weight ratio of (0.5-1.5): (5-8). The anti-reflection self-cleaning coating liquid prepared by the invention can obviously improve the light transmittance and self-cleaning property of photovoltaic glass; and the durability and the stability of the coating layer are excellent.

The invention relates to a polymethyl methacrylate composite material as well as a preparation method and application thereof, and belongs to the technical field of compositions of high-molecular compounds. The polymethyl methacrylate composite material comprises the following components in parts by weight: 70-95 parts of PMMA resin, 2-15 parts of a toughening agent, 3-10 parts of activated shell powder and 1.2-6 parts of a functional additive, the specific surface area of the activated shell powder is greater than or equal to 0.8 m < 2 > / g; the functional additive comprises at least one of an antibacterial agent, a lubricant, an antioxidant and a weather-resistant agent. The polymethyl methacrylate composite material has high wear resistance and high toughness, and the surface of the polymethyl methacrylate composite material is not easy to absorb moisture and become sticky.

The invention discloses a batch processing technology of micro-fluidic chips, and relates to the technical field of chip processing. The method comprises the following steps: firstly, providing at least two layers of polymer coiled materials, namely a first coiled material for forming a micro-channel structure and a second coiled material for closing a micro-channel, the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA), and the coiled materials are continuous coiled materials selected from polyethylene glycol terephthalate (PET), cycloolefin polymer (COP), polycarbonate (PC) or polymethyl methacrylate (PMMA); the thickness of the coiled material is 50-500 microns; secondly, carrying out continuous compression molding processing on the surface of the first coiled material through a roll-to-roll processing platform; through a roll-to-roll continuous process, micro-channel mold pressing, functional deposition, precise alignment bonding and online cutting are integrated, high-efficiency, high-consistency and high-integration-level batch manufacturing of the micro-fluidic chip is realized, and manual intervention and production cost are remarkably reduced.

The invention belongs to a material modification technology, relates to high-surface-quality plastic, and particularly relates to preparation and application of a high-glossiness PMMA / PC / ASA composite material, in particular to application of the high-glossiness PMMA / PC / ASA composite material to an automobile exterior trimming panel. The high-glossiness PMMA / PC / ASA composite material is prepared by taking polymethyl methacrylate resin, polycarbonate, a toughening agent, a compatilizer, a coloring agent and an auxiliary agent as raw materials. The invention mainly solves the problem that the surface appearance and performance are difficult to balance when the PMMA / ASA alloy material is compounded with the PC material, thereby obtaining the PMMA / PC / ASA alloy material with high glossiness, high heat resistance and high weather resistance.

The invention discloses a rare earth metal polymer with multiple stimulation responsiveness and a preparation method thereof, two monomers SP and VTPY are mixed with methyl methacrylate (MMA) according to a certain proportion, a polymer skeleton Poly (VTPY-co-SP-co-MMA) is prepared through a free radical polymerization reaction, the polymer and Tb (Com) 3.2 H2O are further subjected to a coordination reaction according to a specific proportion, and the rare earth metal polymer with multiple stimulation responsiveness is obtained. The Poly-Tb (Coum) 3 with the stimuli-responsive discoloration characteristic is prepared by the aid of the method. The rare earth metal polymer with methyl methacrylate as a framework and rare earth terbium ions and spiropyran monomers as double emission centers is synthesized, has multiple stimulation response characteristics, provides a brand new strategy and possibility for development of rare earth-based multifunctional intelligent materials, and has wide application prospects. An innovative solution is provided for development of a thermal enhanced rare earth luminescent material, the thermosensitive fluorescence response performance of the material is greatly improved, and a new thought is provided for design of an intelligent temperature response type rare earth luminescent material.

The invention relates to the technical field of adhesive tapes, and discloses an electrolyte-resistant double-sided adhesive tape for an environment-friendly new energy lithium battery, the double-sided adhesive tape comprises a base film layer, adhesive film layers and release films, the adhesive film layers are distributed on two sides of the base film layer, the release films are distributed on two sides of the adhesive film layers, and the adhesive film layers are formed by coating electrolyte-resistant adhesives on two sides of the base film layer. The electrolyte-resistant adhesive is prepared by carrying out cross-linking polymerization on acrylic monomers such as methyl methacrylate and hydroxyethyl methylacrylate under the action of an initiator and a cross-linking agent, and the cross-linking agent is a macromolecular substance which is connected through a silicon-oxygen bond and has a cyclohexyl hexafluoropropane-tertiary butyl block alternating structure. After the special structure of the cross-linking agent is introduced into the molecular chain of the adhesive, the adhesive property, high temperature resistance and electrolyte resistance of the adhesive can be obviously enhanced.

The invention relates to the field of bimetal composite boards, and discloses a fireproof bimetal composite board and a preparation method thereof.The preparation method comprises the following steps that an aluminum board is selected as a base layer, the upper surface of the aluminum board is coated with a polymeric membrane to form a bonding layer, the upper surface of the bonding layer is coated with a copper board, and the fireproof bimetal composite board is prepared through compounding at the temperature of 150-200 DEG C; the polymeric membrane comprises an ethylene-vinyl acetate copolymer, epoxy resin, polymethyl methacrylate, modified polyglycidyl methacrylate, a composite filler and polyamide. The bimetallic composite plate prepared by the invention is prepared by coating the copper plate with the polymeric membrane on the aluminum plate; the composite filler and the modified polyglycidyl methacrylate are added into the polymeric membrane, so that the peel strength and the mechanical property of the polymeric membrane are improved, and the polymeric membrane is excellent in oxidation resistance and corrosion resistance and high in flame retardant property and fireproof grade.

The invention discloses an inorganic composite phase change energy storage concrete material and a preparation method thereof, belongs to the technical field of concrete materials, and is used for solving the technical problems of poor freeze-thaw resistance and mechanical property of a common concrete material in the prior art. The inorganic composite phase-change micro-capsule cement comprises cement, inorganic composite phase-change micro-capsules, natural coarse aggregate, an air entraining agent and a modified water reducing agent, and is prepared by taking a phase-change material paraffin, fly ash, diatomite and expanded perlite mixture as a core material and a compound of organic modified apatite and polymethyl methacrylate as a wall material. The prepared inorganic composite phase change microcapsule not only has excellent heat storage performance and continuous freeze-thaw resistance, but also has excellent mechanical properties, and can replace fine aggregate in a concrete material, and a modified water reducing agent prepared by addition polymerization of multiple monomers has the advantages of high water reducing rate and good dispersity.

The invention relates to a UV viscosity-reducing adhesive, a UV viscosity-reducing adhesive composition, an adhesive tape and a preparation method. The UV viscosity-reducing adhesive comprises an acrylate copolymer, wherein the acrylate copolymer comprises a main chain and a multifunctional acrylate side group grafted on the main chain; the main chain is formed by copolymerizing a plurality of polymeric monomers including an acrylate soft monomer, an acrylate hard monomer and a functional acrylate monomer; the acrylate soft monomer is acrylate long-chain alkyl ester, and the carbon atom number of the long-chain alkyl ester is greater than or equal to 4; the acrylate hard monomer is methyl (methyl) acrylate; the functional acrylate monomer is acrylic acid (ester) containing carboxyl and acrylic ester containing hydroxyl; the polyfunctional group acrylate side group is formed by a UV active substance, each molecule of which contains a plurality of acrylate groups and contains one epoxy group, through a reaction between the epoxy group and the carboxyl group on the main chain. The UV viscosity-reducing adhesive has a UV viscosity-reducing function, does not need to additionally add UV active monomers or low polymers, can enhance the UV light viscosity-reducing effect and improve the viscosity-reducing efficiency, and is also beneficial to reducing the ingredient composition of a UV adhesive material and simplifying the preparation method.

The invention discloses an artificial SEI film coated graphite negative electrode material and a preparation method and application thereof, and belongs to the technical field of lithium ion battery negative electrode materials. The preparation method comprises the following steps: heating and oxidizing graphite in mixed gas of air and nitrogen, and cooling to obtain oxidized and etched graphite; then dispersing the oxidized and etched graphite in a solvent, adding methyl methacrylate and graphene, stirring and initiating an in-situ polymerization reaction, and forming a doped coating layer on the oxidized and etched graphite; and finally, carrying out vacuum drying on the coated oxidized and etched graphite, and cooling to obtain the artificial SEI film coated graphite negative electrode material. The specific surface area of graphite is increased through oxidation etching, the ion diffusivity is improved, the combination effect of the organic polymer is improved, the first efficiency of the negative electrode material is remarkably improved by combining the synergistic effect of the conductive polymerized organic matter and graphene, and the conductivity, the structural stability and the interface compatibility are enhanced.

The invention discloses ternary synergistic nano-enzyme hydrogel as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The preparation method comprises the following steps: dissolving zinc nitrate hexahydrate and ferric nitrate nonahydrate in methanol; dissolving 2-methylimidazole in methanol, adding into a metal salt solution, stirring, and sequentially centrifuging, washing and drying to obtain Fe / ZIF-8 nano-enzyme; the preparation method comprises the following steps: adding methacrylated gelatin and hyaluronic acid into deionized water, stirring, cooling to room temperature, and refrigerating to obtain a GelMA-HA precursor solution; and adding the Fe / ZIF-8 nano-enzyme into the GelMA-HA precursor solution, stirring, injecting into a mold, and carrying out ultraviolet light cross-linking curing to obtain the ternary synergistic nano-enzyme hydrogel. According to the hydrogel disclosed by the invention, active oxygen is efficiently removed and oxygen is produced through Fe / ZIF-8 nano-enzyme, and cartilage repair is promoted in combination with lubrication and slow release functions of gelatin hydrogel, so that a new strategy is provided for treatment of osteoarthritis.

The invention provides a toughened polylactic acid blend as well as a preparation method and application thereof, and belongs to the technical field of new materials. According to the invention, poly (p-dioxanone), chitin, polymethyl acrylate, glycerol, polycaprolactone, epoxypropane and polymethyl methacrylate in a specific ratio are adopted as a modified composite material, and the modified composite material and polylactic acid are subjected to melt blending under specific conditions to realize toughening modification of a polylactic acid material. Experiments prove that the toughening type polylactic acid blending material prepared by the method can effectively improve the toughness of polylactic acid, can also improve the degradation speed of polylactic acid, and has a wide application prospect.

The invention discloses a water-based concrete composite anticorrosive coating and a preparation method thereof, and relates to the field of coatings. A semi-continuous seed emulsion method is adopted, methyl methacrylate, butyl acrylate, acrylic acid and organosilicon monomer gamma-methacryloxypropyltrimethoxysilane (gamma-MPS) are used to obtain a water-based organosilicon modified acrylate emulsion, the water-based organosilicon modified acrylate emulsion is used as a film-forming substance, and then composite hydrophobic modified nano silicon oxide is used as a doped filler to prepare the coating. The water-based concrete composite anticorrosive paint is obtained through a physical blending method. According to the prepared coating, the water-based emulsion is used as a film-forming substance, emission of organic matter is small, the environment-friendly property is high, hydrophobic modified nano-silica is mixed, the reinforcing effect is achieved in the coating structure, the coating has certain toughness due to the cross-linking structure between organic silicon modified acrylate polymers, the hardness and softness combined structure is good, and the coating has the good application prospect. The coating is excellent in mechanical property due to the hydrophobic structure, permeation corrosion of water molecules is avoided, and the coating has excellent corrosion resistance.

The invention discloses an artistic mirror based on an acrylic material and a preparation method of the artistic mirror. The artistic mirror comprises a middle PMMA layer, an aluminum coating, an upper protective layer and a lower protective layer, wherein the PMMA layer comprises an anti-aging agent and polymethyl methacrylate; the protective layer comprises a super-hydrophilic self-cleaning protective film layer structure and a protective coating of an aluminum coating. As the art mirror is made of an acrylic material, the image is clear and is not easy to break, and the use safety is greatly enhanced; a layer of high-transparency and super-hydrophilic self-cleaning protective film layer structure is attached to the surface of the artistic mirror, so that the artistic mirror is not easy to fog and stain, the composite coating has antibacterial, anti-ultraviolet and flame-retardant properties and the like due to the addition of components, the related flame-retardant property and service life requirements can be met, and the mirror is light in weight and convenient to carry and install.

The invention relates to the technical field of preparation of surface micro-nano structures, and discloses a method for generating a micro-bulge structure based on a controllable gas phase microreactor, which comprises the following steps: preparing an organic mixed solution, mixing a driving solution methyl methacrylate into an initiator di-tert-butyl peroxide solution, then adding a solvent dimethyl sulfoxide solution, and stirring to obtain a mixed solution; meanwhile, ultrasonic oscillation is carried out for 10 minutes; according to the method for generating the micro-bulge structure based on the controllable gas-phase microreactor, the preparation of the micro-bulge structure can be realized only by directly dropwise adding a precursor organic mixed solution of a polymer on the surface of a substrate with a photothermal effect and then controlling the irradiation position and energy of continuous wave laser; compared with a photoetching method, the method has the advantages that complicated equipment operation and tedious process steps are not needed, and compared with the photoetching method, expensive photoetching machines, masks, vacuum chambers and complicated chemical reagent treatment processes are not needed, so that the operation flow is simplified.

The invention discloses a preparation method and an application method of a catalyst for producing aromatic aldehyde by oxidizing agricultural waste lignin, and belongs to the field of lignin resource utilization. The preparation method of the catalyst for producing aromatic aldehyde through lignin oxidation comprises the following steps: mixing lanthanum salt, B-site metal salt and citric acid in a solvent to obtain a precursor solution; and soaking a polymethyl methacrylate template in the precursor solution, reacting, and calcining to obtain the catalyst for producing aromatic aldehyde by lignin oxidation. The catalyst for producing aromatic aldehyde through lignin oxidation, provided by the invention, has the advantages of low cost, adjustable electronic structure, high oxygen mobility, excellent oxidation-reduction performance and the like, has good catalytic performance, and is suitable for being used as a lignin alkali-free oxidation catalyst. The prepared porous catalytic material with micropores, mesopores and macropores is beneficial to mass transfer of lignin macromolecules and the catalyst, beta-O-4 bonds of lignin can be efficiently broken, and alkali-free oxidation production of value-added aromatic aldehyde chemicals is facilitated.

The invention relates to a binder, an electrode material and a battery. The binder comprises the following preparation raw materials: a temperature-sensitive polymer and a conductive agent, the temperature-sensitive polymer comprises at least one of polyalkyl pyrrole, polyalkyl thiophene, polymethyl methacrylate, ethylene-vinyl acetate copolymer, polypropylene or polyimide. The structure and properties of the temperature-sensitive polymer can be changed when the temperature rises, so that the conductivity, the adhesive property and the mechanical strength of the material are adjusted, the adhesive can automatically insulate reaction in a battery cell and prevent thermal runaway, and the adhesive is good in stability at high temperature, does not decompose or degrade to release toxic gas, and is safe and reliable. The safety performance of the product is greatly improved; by combining with the conductive agent, a network structure with strong adhesive force, good conductivity and high heat conduction efficiency can be formed, and the obtained adhesive has good adhesive force and conductivity at room temperature and excellent insulativity and safety performance at high temperature.

The present invention provides an ashless rust inhibitor and a preparation method therefor. The preparation method comprises the following steps: in a non-polar solvent, mixing dinonylnaphthalenesulfonic acid and dodecenylsuccinic acid to obtain mixed acid A; mixing polyene polyamine and the mixed acid A according to a molar ratio of (0.5-2.0):1, and adding deionized water and methanol for reaction until the pH value of the solution is neutral; and adding methylmethacrylate and base oil into the reacted system, carrying out heating distillation, and then carrying out reduced pressure distillation until no obvious distillate is generated, so as to obtain the ashless rust inhibitor. The present invention further provides an ashless rust inhibitor prepared by the method. The ashless rust inhibitor of the present invention integrates the advantages of a dinonylnaphthalenesulfonic acid group and a dodecenylsuccinic acid group at the molecular level, and has a better rust inhibition effect; in addition, the ashless rust inhibitor has a good synergistic effect with an extreme pressure antiwear agent.

The application discloses a kind of cable filling rope with halogen-free flame-retardant composite material and preparation method thereof, belong to composite material technical field.The application is used to solve the technical problems of poor cell quality, poor mechanical properties and flame-retardant properties of filling rope material in the prior art.A kind of preparation method of cable filling rope with halogen-free flame-retardant composite material includes the following steps: low-density polyethylene, high-density polyethylene, hybrid flame-retardant resin and modified nucleating agent are uniformly mixed to obtain foaming filling rope material;Foaming filling rope material is melt extruded to obtain cable filling rope with halogen-free flame-retardant composite material.The hybrid flame-retardant resin is obtained by reaction of polycyclic epoxy group cyclotriphosphazene, vinyl chloride methyl methacrylate copolymer, mixed inorganic powder, etc.;The modified nucleating agent is obtained by intercalating talc powder with modified diamide nucleating agent.The foaming filling rope material prepared by the application has the characteristics of high cell quality, excellent mechanical properties and flame-retardant properties.