526 results about "Nanocrystalline titanium dioxide" patented technology

The structural formula of the coating weather-resistant agent is shown in the specification, and a substituent group R1 is methyl, propyl, carbamoyl or phenyl. The invention also discloses a nano composite anticorrosive coating which is prepared from the following components in parts by mass: 30-45 parts of epoxy resin matrix, 3-8 parts of nano zinc oxide, 3-8 parts of nano titanium dioxide, 5-15 parts of mica powder, 3-8 parts of coalescing agent, 0.5-2 parts of silane coupling agent, 0.8-3 parts of dispersing agent, 0.5-2 parts of flatting agent, 0.5-2 parts of defoaming agent, 0.5-2 parts of weather-proof agent and 15-30 parts of solvent, and the weather-proof agent is a coating weather-proof agent. The invention also discloses a preparation method of the paint weather-resistant agent and the nano-composite anticorrosive paint. The invention effectively solves the problem that the coating is easy to age, crack and peel off.

The invention relates to the technical field of alloy processing, and discloses a high-performance corrosion-resistant nickel-based alloy plate and a preparation method thereof, and the method comprises the following steps: raw material preparation, smelting treatment, casting treatment, hot rolling treatment, solution treatment, aging treatment and surface passivation treatment. According to the invention, when a composite acid system is adopted for passivation treatment, the concentration of chromium / molybdenum atoms in a passivation film is optimized and balanced due to the specific ratio of nitric acid to chromic acid, a chromium oxide provides a compact passivation barrier, and a molybdenum oxide endows the film layer with a self-repairing characteristic to synergistically inhibit pitting nucleation; meanwhile, nano titanium dioxide particles pretreated by silane are embedded into the passivation film in situ under the action of ultrasonic oscillation, organic pollutants adsorbed on a film layer can be decomposed by the photocatalytic characteristic of the nano titanium dioxide particles, the local corrosion effect of a battery caused by dirt coverage is avoided, and the performance of the battery is improved through double upgrading of components and the structure of the passivation film. And the alloy plate has excellent pitting corrosion resistance and fouling resistance in a chloride ion-containing medium.

The invention relates to the field of electric wires and cables, and discloses a high-temperature-oxidation-resistant flame-retardant electric wire and cable and a preparation method thereof.The sheath layer of the electric wire and cable comprises low-density polyethylene, nitrile rubber, natural rubber, ethylene-tetrafluoroethylene copolymer, modified multi-walled carbon nanotubes, modified nano titanium dioxide and auxiliaries; the modified multi-walled carbon nanotube is prepared by reacting an acylating chlorination multi-walled carbon nanotube with a polycyclotriphosphazene derivative; the polycyclotriphosphazene derivative is prepared by reacting hexachlorocyclotriphosphazene with p-aminodiphenylamine and then taking diphenyl dihydroxysilane as a linker; the modified nano titanium dioxide is prepared by the following steps: substituting phenylphosphoryl dichloride with phloroglucinol, then sequentially substituting with 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride and 3-aminopropyltriethoxysilane, and grafting an obtained antioxidant phosphorus-containing coupling agent with nano titanium dioxide. The sheath layer material prepared by the invention has excellent high-temperature oxidation resistance, flame retardance, wear resistance and heat resistance.

The present application relates to the technical field of dielectric ceramic powder preparation, and particularly relates to a multilayer ceramic capacitor, a high-activity nano-barium titanate powder for the multilayer ceramic capacitor and a preparation method of the high-activity nano-barium titanate powder, the method comprising the following steps: (1) reacting a soluble barium salt with a precipitator to obtain barium carbonate precursor particles with high specific surface area; (2) uniformly coating nano-titanium dioxide particles on the surface of the barium carbonate precursor particles by using a supercritical fluid flash technology to form a composite precursor; and (3) performing a solid-phase synthesis reaction on the composite precursor and sintering to obtain nano-barium titanate powder. The present application, through the synergistic effect of the two means of "high-activity precursor preparation" and "nano-level uniform coating", prepares a composite precursor with extremely high specific surface area, surface energy and micro-uniformity, effectively reduces the heat sintering temperature, suppresses abnormal grain growth and lattice distortion, and significantly improves the tetragonality of the nano-barium titanate powder.

The invention relates to a phase change energy storage fiber with ultraviolet shielding and heat regulation and control functions and a preparation method of the phase change energy storage fiber. The preparation method comprises the following steps: dissolving thermoplastic polyurethane in N, N-dimethylformamide to form a spinning mother solution; the preparation method comprises the following steps: firstly, adding nano titanium dioxide and uniformly dispersing, then adding a silicon dioxide shell layer-octadecane core layer phase change microcapsule, and stirring and ultrasonically defoaming to obtain a uniform composite spinning solution; extruding the spinning solution into a coagulating bath consisting of isopropanol and deionized water through an injection pump, and coagulating and forming to obtain nascent fibers; finally, washing, solvent replacement, tension setting and drying treatment are conducted, and compared with the prior art, the obtained fiber has efficient ultraviolet shielding performance and remarkable phase change energy storage capacity and has wide application prospects in the fields of intelligent temperature adjusting textiles, outdoor protective garments, building heat management and the like.

The invention relates to a normal-temperature curing high-corrosion-resistance self-lubricating composite coating which is prepared from the following components in parts by weight: 25 to 35 parts of modified epoxy resin, 12 to 22 parts of waterborne polyurethane-acrylate copolymer, 6 to 14 parts of lubricating filler, 4 to 9 parts of corrosion-resistant filler, 10 to 18 parts of composite curing agent, 1 to 4 parts of dispersing agent, 0.5 to 3.5 parts of flatting agent, 0.8 to 2.5 parts of defoaming agent and 35 to 55 parts of auxiliary solvent. According to the coating disclosed by the invention, an interpenetrating network matrix is constructed through modified epoxy resin and a waterborne polyurethane-acrylate copolymer, and is matched with components such as a nano molybdenum disulfide / graphene composite lubricating filler and a nano titanium dioxide-zinc oxide composite corrosion-resistant filler, and a photoinitiator-amine composite curing agent is combined, so that dual curing is realized. The coating has excellent properties of rapid curing at normal temperature, high corrosion resistance, self-lubrication and the like, is low in VOC content and wide in application range, and provides an innovative solution for the field of surface protection.

The invention relates to the technical field of paint preparation, in particular to a preparation method for removing harmful gases from paint, which comprises the following steps: preparing functional components for removing harmful gases, and weighing nano titanium dioxide, activated carbon and modified montmorillonite according to the mass ratio of (5-10): (2-5): (1-3); the preparation method comprises the following steps: preparing a resin base material: weighing 30-50 parts by mass of hydroxy acrylic resin, 10-20 parts by mass of polyurethane resin, 20-30 parts by mass of deionized water and 5-10 parts by mass of ethanol; preparing a coating premix: adding 1-3 parts by mass of a polycarboxylate dispersant and 0.5-2 parts by mass of an organic silicon defoaming agent into the resin base material; and preparing a finished product coating: adding 0.5-2 parts by mass of an acrylate leveling agent, 1-4 parts by mass of a hydroxyethyl cellulose thickening agent and 0.5-1.5 parts by mass of an isothiazolinone mildew preventive into the coating premix. The coating disclosed by the invention has the following beneficial effects that the coating can cope with a complex scene in which indoor multi-component pollutants coexist; the problem of harmful gas desorption after adsorption saturation of a single material is avoided, and the purification validity period is prolonged.

The invention belongs to the technical field of coating preparation, and discloses a long-acting antibacterial hydrophobic and oleophobic stainless steel coating and a preparation method thereof. Comprising the following raw materials in parts by weight: 20-40 parts of matrix resin, 5-20 parts of an antibacterial agent, 10-25 parts of a hydrophobic and oleophobic filler, 3-8 parts of a cross-linking agent, 20-30 parts of a solvent and 2-5 parts of an auxiliary agent, wherein the matrix resin is fluorosilicone modified acrylic resin; the antibacterial agent is silver-loaded nano titanium dioxide; the hydrophobic and oleophobic filler is a compound of fluorinated nano silicon dioxide and carboxylated carbon nanotubes. The problems that an existing coating is difficult to consider antibacterial performance and hydrophobic and oleophobic performance, poor in long-term effect and weak in binding force are solved, and the comprehensive performance of long-term antibacterial performance, hydrophobic and oleophobic performance, wear resistance, environmental protection and stability of the coating is achieved.

The invention discloses a water treatment filtering material and a preparation method thereof, and relates to the technical field of filtering materials. When the water treatment filtering material is prepared, firstly, acrylonitrile, itaconic acid and ethylene 2-(methacryloyloxy) ethyl phosphate are copolymerized to prepare copolymerized modified polyacrylonitrile; the preparation method comprises the following steps: carrying out hydrothermal reaction on a copper source and tetrabutyl titanate, and calcining to obtain copper-doped nano titanium dioxide; the copper-doped nano titanium dioxide and KH-550 are subjected to a reaction, and modified nano titanium dioxide is prepared; carrying out electrostatic spinning on the copolymerized modified polyacrylonitrile, and carrying out nano-spray loading on the modified nano titanium dioxide to prepare a modified polyacrylonitrile fiber membrane; and reacting the modified polyacrylonitrile fiber membrane in a covalent organic framework growth solution to prepare the water treatment filtering material. The prepared water treatment filtering material has the advantages of being antibacterial, anti-pollution, high in filtering efficiency and long in service life.

The invention discloses a photovoltaic cable sheath material with ultraviolet aging resistance and long service life. Comprising the following components in parts by weight: 100 to 120 parts of high-density polyethylene, 0.3 to 0.5 part of a benzotriazole ultraviolet light absorber, 0.5 to 0.8 part of a hindered amine light stabilizer, 0.2 to 0.5 part of an antioxidant, 3 to 5 parts of salicylate intercalated magnesium aluminum hydrotalcite, 0.02 to 0.05 part of cerium acetylacetonate, 2 to 4 parts of rutile type nano titanium dioxide, 3 to 5 parts of a compatilizer and 0.5 to 1 part of a dispersant. The photovoltaic cable is prepared from the anti-ultraviolet aging long-life photovoltaic cable sheath material, an insulating layer material and a conductor, so that the obtained photovoltaic cable sheath material and the photovoltaic cable have excellent anti-ultraviolet capability and thermal aging resistance, and have relatively long service life.

The invention discloses an anti-reflection self-cleaning coating for silane modified photovoltaic glass as well as a preparation method and application of the anti-reflection self-cleaning coating. The preparation method comprises the following steps: mixing 40-50 parts by weight of water and 30-40 parts by weight of absolute ethyl alcohol, adding 0.05-1 part by weight of a silane coupling agent, and stirring to obtain a mixture; dividing the sample into two parts, marking the two parts as a solution A and a solution B, and adding 0.5-1 part by weight of nano titanium dioxide into the solution A; adding 10-20 parts by weight of hydrophilic silica sol into the solution B; adding the solution A into the solution B, mixing, and adding 1-10 parts by weight of hexadecyl trimethyl ammonium chloride to obtain a TiO2 / SiO2 composite super-hydrophilic self-cleaning coating; mixing 5-10 parts by weight of absolute ethyl alcohol and 1-5 parts by weight of silane, and adding the mixture into the coating to obtain an anti-reflection self-cleaning coating solution for silane modified photovoltaic glass; and coating the coating on a photovoltaic glass substrate, and drying to obtain the anti-reflection self-cleaning coating for the silane modified photovoltaic glass.

The invention provides an antibacterial high-barrier starch-based plastic bottle and a preparation method thereof.The preparation method comprises the steps that firstly, titanate generates nano titanium dioxide in situ in starch through acid catalysis, starch is subjected to in-situ hybridization modification, and nano titanium dioxide in-situ hybridization starch is prepared; then adding nano inorganic barrier powder, and then adding a long-chain silane coupling agent to modify the nano titanium dioxide in-situ hybridized starch and the nano inorganic barrier powder to obtain a modified starch compound; performing vacuum kneading and drying until the water content is lower than 0.5%, and adding an antibacterial lubricant for plasticizing to obtain a plasticized material; and finally, carrying out melt blending and granulation with polyolefin resin, and carrying out extrusion blow molding. The environment-friendly and low-cost starch-based material is kept, meanwhile, the comprehensive performance of the product is remarkably improved, the surface contact angle of the product is 110 degrees or above, the antibacterial rate is 97% or above, and the oxygen permeation amount and the water vapor permeation amount are 100 cm / (m.24h. Atm) and 4 g / (m.24h) or below respectively.

The invention discloses a hydrophobic anti-icing material based on silver ions and application in a power transmission line, and belongs to the technical field of hydrophobic anti-icing materials, the hydrophobic anti-icing material is prepared from the following raw materials in parts by weight: 80-120 parts of hydroxyl-terminated polydimethylsiloxane, 5-15 parts of tetraethoxysilane, 0.5-3 parts of silver nitrate, 3-10 parts of hydrophobic nano silicon dioxide and 1-5 parts of nano titanium dioxide. The invention discloses an anti-icing and deicing composite material, which is prepared from the following components in parts by weight: 80 to 120 parts of butyl acetate, 0.1 to 0.5 part of dibutyltin dilaurate, 0.5 to 2 parts of sodium citrate and 2 to 5 parts of modified fluorinated phosphotungstic acid imidazole compound, and solves the problems that the existing material is insufficient in photo-thermal utilization rate, poor in stability in a severe environment, insufficient in hydrophobic capacity and difficult to give consideration to anti-icing and deicing effects. According to the scheme, the modified fluorinated phosphotungstic acid imidazole compound and silver ions are introduced to form a synergistic effect, formation of an ice layer is inhibited, melting of the ice layer is promoted, meanwhile, lasting super-hydrophobicity is provided, a durable hydrophobic anti-icing coating based on the silver ions is formed, and the safety of a power grid is guaranteed.

The invention discloses a high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable and a preparation method thereof, and belongs to the technical field of cable manufacturing, and the high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable sequentially comprises an optical fiber unit, a conductor layer, an insulating layer, a shielding layer, a corrosion-resistant layer and a sheath layer from inside to outside. The optical fiber unit adopts a ceramic silicone rubber buffer layer; the conductor layer is a nickel-plated copper alloy stranded wire, and the oxidation resistance is enhanced through nano titanium dioxide sol treatment; the insulating layer is of a three-layer co-extrusion structure; the shielding layer adopts an aluminum-plastic composite belt and tinned copper wire braided composite structure; the anti-corrosion layer is a polytetrafluoroethylene film subjected to plasma treatment; the sheath layer is made of two-component ceramic silicone rubber, is flexible after being vulcanized at normal temperature, and is converted into a ceramic body at high temperature. According to the optical fiber composite cable, through the collaborative design of a multi-layer structure, the performance of excellent continuous use stability, high salt mist environment corrosion resistance and the like is achieved, the optical fiber composite cable is suitable for high-temperature, corrosion, fire and other severe environments, and the safety and durability of the composite cable are remarkably improved.

The invention relates to the technical field of high polymer materials, and particularly discloses high-weather-resistance chlorinated polyethylene and a preparation method thereof. The high-weather-resistance chlorinated polyethylene is prepared from the following raw materials in parts by weight: 110 to 150 parts of chlorinated polyethylene, 9 to 15 parts of chloroprene rubber coated nano titanium dioxide, 38 to 60 parts of ionic liquid modified nano calcium carbonate, 5 to 10 parts of polyvinylidene fluoride resin, 10 to 20 parts of chlorinated paraffin and 1 to 6 parts of antioxidant, the preparation method comprises the following steps: S1, preparing chloroprene rubber coated nano titanium dioxide; s2, preparing ionic liquid modified nano calcium carbonate; s3, internal mixing; and S4, carrying out screw extrusion and press polish. The high-weather-resistance chlorinated polyethylene can be used for building waterproof coiled materials, outdoor protective coatings, automobile sealing strips, wire and cable sheaths and the like, and has the advantages of high tensile strength, elongation at break, impact toughness, ultraviolet aging resistance and thermo-oxidative degradation resistance.

This invention relates to a modified titanium dioxide for matting polyester fibers and its preparation method. The modified titanium dioxide comprises a mesoporous titanium dioxide core and a cysteine ​​graft layer grafted into the pores of the mesoporous titanium dioxide. The mesoporous titanium dioxide core is prepared by evaporation-induced self-assembly using an alkenyl sulfonate surfactant as a liquid crystal template and tetraethyl or tetrabutyl titanate as the titanium source. Due to the self-polymerization reaction of the alkenyl sulfonate, the resulting polyalkenyl sulfonic acid compound reduces the crystallinity of the mesoporous titanium dioxide, thereby significantly reducing its photocatalytic activity. The mesoporous titanium dioxide is mixed with cysteine ​​and heated to graft cysteine ​​into its pores. The presence of cysteine ​​results in the modified titanium dioxide exhibiting both good matting properties and suppressed photocatalytic activity, preventing fiber structure damage from prolonged ultraviolet irradiation when applied to polyester fibers.

The invention relates to the technical field of polypropylene fibers, in particular to a high-strength polypropylene fiber and a preparation method thereof. The problems that in the prior art, polypropylene fibers are low in strength and poor in temperature resistance are solved. The preparation method comprises the following steps: respectively prefabricating master batches through silane coupling agent modified nano titanium dioxide and carboxylated multi-walled carbon nanotubes, carrying out melt blending on the master batches, isotactic polypropylene, ultra-high molecular weight polypropylene, a liquid crystal polymer, a beta-nucleating agent and the like, and combining a double-region cooling process under high-speed spinning and two-stage temperature difference drafting to obtain the high-strength polypropylene fiber. According to the method, hierarchical dispersion and interface strengthening of nano components in a polypropylene matrix are achieved, the molecular chain orientation degree and crystallization regularity of the fiber are remarkably improved while good processability is maintained, and finally the performance of the polypropylene fiber is greatly improved.

The invention discloses a recycled PP composite material with flame-retardant and antibacterial properties and a preparation method thereof, and relates to the technical field of recycled PP composite materials. The recycled PP composite material with flame-retardant and antibacterial properties is prepared from the following raw materials in parts by weight: 60 to 75 parts of recycled PP, 15 to 25 parts of modified magnesium hydroxide, 3 to 8 parts of modified chitosan, 2 to 5 parts of ethylene-vinyl acetate copolymer, 0.5 to 1.5 parts of silane coupling agent KH-550, 8 to 15 parts of ammonium polyphosphate, 0.3 to 0.8 part of calcium stearate, 1 to 3 parts of nano titanium dioxide and 0.2 to 0.6 part of tributyl citrate. The recycled PP composite material has the remarkable advantages that the recycled PP is used as a base material, so that the environment is protected and the cost is low; through compounding of modified magnesium hydroxide, modified chitosan and the like, the flame-retardant antibacterial coating has excellent flame-retardant and antibacterial properties; the preparation process is clear and controllable, the raw material compatibility is scientific, the compatibility of the components is good, the product performance is stable, and the application prospect is wide.

The invention discloses an anti-ultraviolet heat-insulating radiation-proof water-based glass paint and a preparation process thereof. The anti-ultraviolet heat-insulating radiation-proof water-based glass paint is prepared from the following raw materials in parts by weight: 30-50 parts of acrylic resin, 5-10 parts of a coalescing agent, 3-8 parts of butyraldehyde, 10-20 parts of nano titanium dioxide, 8-15 parts of nano tin antimony oxide, 2-5 parts of a polyacrylate dispersant, 2-5 parts of a polyurethane thickener and 15-30 parts of deionized water. Comprising the following steps: S1, weighing deionized water, a polyacrylate dispersing agent and a polyurethane thickening agent according to a ratio, and adding into a stirring kettle; and stirring at the rotating speed of 400rpm for 8 minutes. Through the synergistic effect of the nano titanium dioxide and the nano tin antimony oxide, the anti-ultraviolet, heat-insulating and anti-radiation functions are achieved at the same time, and the problem that an existing glass paint is single in function is solved; the polyacrylate dispersing agent is adopted, so that the dispersity of the nano functional filler is effectively improved, the agglomeration phenomenon is avoided, and the uniformity of the paint film performance is ensured.

The invention discloses a modified polymer cement-based normal-temperature foaming fireproof coating and a preparation method thereof, and relates to the technical field of fireproof coatings. The modified polymer cement-based normal-temperature foaming fireproof coating comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 15 to 20 parts of cement, 10 to 12 parts of calcium carbonate, 0.3 to 0.9 part of nano titanium dioxide, 30 to 35 parts of polyurethane emulsion, 1 to 2 parts of cross-linking agent, 8 to 12 parts of flame retardant, 1 to 3 parts of foaming agent, 0.5 to 1.5 parts of dispersing agent and 10 to 20 parts of deionized water; the component B comprises the following raw materials in parts by weight: 20-25 parts of a curing agent, 0.1-0.5 part of an organic zinc catalyst and 0.5-1.2 parts of a foam stabilizer; the prepared modified polymer cement-based normal-temperature foaming fireproof coating has excellent fireproof performance, bonding strength and compressive strength.

The application discloses an anti-oil stain photovoltaic panel self-cleaning paint and a preparation method thereof. The paint comprises the following components in parts by weight: 17-20 parts of hollow nano titanium dioxide, 5-7 parts of sodium perfluorooctane sulfonate, wherein the hollow nano titanium dioxide is hollow anatase nano titanium dioxide formed by removing the silica core after coating the silica on the outer surface of the hollow nano titanium dioxide, and the hollow nano titanium dioxide contains an oil stain degrading agent. The paint has the dual effects of hydrophilicity and oil repellency and oil stain degradation, greatly improves the cleaning effect, reduces the cleaning cost, and also has excellent stability.

The invention discloses a multi-band high-stability ferrite magnetic material composite formula and a preparation process, and relates to the technical field of magnetic materials. The ferrite magnetic material composite formula comprises 38-42 parts of ferric oxide powder, 37-41 parts of ferroferric oxide powder, 6-12 parts of graphene nanosheets, 5-7 parts of hydroxypropyl methyl cellulose, 6-9 parts of lanthanum oxide, 4-6 parts of scandium oxide, 1-3 parts of nano titanium dioxide, 4-6 parts of bismuth magnesium boron, 9-13 parts of ferric sulfate, 3-5 parts of manganese sulfate, 4-6 parts of zinc sulfate, 2-4 parts of copper sulfate and 2-3 parts of samarium sulfate. By utilizing a physical vapor deposition gradient doping process, the problems that an existing ferrite magnetic material is single in electromagnetic performance, cannot stably and efficiently work in a multi-frequency-band complex electromagnetic environment and cannot meet the requirements of the fields of communication, radar, electronic countermeasure and the like for wide-frequency-band and high-performance magnetic materials can be solved.

The application discloses a water treatment filtering material and a preparation method thereof, and relates to the technical field of filtering materials. In the preparation of the water treatment filtering material, acrylonitrile is first copolymerized with itaconic acid and 2-(methacryloyloxy)ethyl phosphate to obtain copolymerized modified polyacrylonitrile; a copper source is hydrothermally reacted with tetrabutyl titanate and then calcined to obtain copper-doped nanometer titanium dioxide; the copper-doped nanometer titanium dioxide is reacted with KH-550 to obtain modified nanometer titanium dioxide; the copolymerized modified polyacrylonitrile is electrospun and nanometer-sprayed to load the modified nanometer titanium dioxide to obtain a modified polyacrylonitrile fiber membrane; and the modified polyacrylonitrile fiber membrane is reacted in a covalent organic framework growth solution to obtain the water treatment filtering material. The water treatment filtering material prepared by the application has the advantages of antibiosis, anti-pollution, high filtering efficiency and long service life.

The invention relates to a weather-resistant silane self-crosslinking low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof. Comprising the following components in parts by weight: 50 to 70 parts of EVA (Ethylene-Vinyl Acetate) resin, 20 to 30 parts of POE (Polyolefin Elastomer) resin, 80 to 100 parts of nano aluminum hydroxide, 5 to 10 parts of zinc borate, 2 to 4 parts of gamma-(methacryloyloxy) propyltrimethoxysilane (KH570), 0.2 to 0.4 part of a crosslinking initiator, 2 to 4 parts of anti-UV (Ultraviolet) master batch, 3 to 5 parts of nano titanium dioxide, 0.3 to 0.6 part of a hindered amine light stabilizer and 0.03 to 0.06 part of an organic tin catalyst. The composite material has the advantages of strong weather resistance, flame retardant rating up to UL94V0, smoke density Dsmax less than 30, high cold bending qualification rate at-40 DEG C, low dielectric loss and the like, is suitable for photovoltaic cables, meets 25-year outdoor service requirements, and solves the problems of weather resistance, flame retardance, mechanical property balance and the like of existing photovoltaic cables.

The invention discloses a high-durability multifunctional composite material for landscape architecture and a preparation method of the high-durability multifunctional composite material, and relates to the technical field of outdoor wood composite materials. Thermoplastic, plant fibers, a hydrophobic agent, a compatilizer and a composite antioxidant are blended to prepare a hydrophobic modified wood-plastic composite material, and the hydrophobic modified wood-plastic composite material is used as a core layer; the preparation method comprises the following steps: blending a wood unit, a low-temperature sintered ceramic precursor, nano titanium dioxide and an inorganic binder to prepare a photocatalyst-loaded microporous ceramic-wood composite material, and forming a functional surface layer of the photocatalyst-loaded microporous ceramic-wood composite material; according to the high-durability multifunctional composite material for the landscape architecture, synchronous co-extrusion is utilized, the surface of the core layer is coated with the functional surface layer, curing and shaping are conducted, and the high-durability multifunctional composite material for the landscape architecture is obtained and is a novel landscape material which integrates high durability, long service life, low maintenance, environment friendliness and aesthetic value and can actively keep the surface clean.

A lung cancer cell culture tank with an ozone sterilization function belongs to the field of biotechnology and cell culture equipment, and is characterized in that a sealing door (2) is arranged at the front part of a tank body (1), a 8W UVC ultraviolet lamp tube (3) is mounted at the top in the tank, and a nano titanium dioxide photocatalyst coating is sprayed on the inner wall of the tank body to form an ultraviolet sterilization and ozone management module; the tank bottom wall (18) is provided with a semiconductor chilling plate (5) and a temperature sensor (6); an air filter (7) with a 0.22 mu m hydrophobic filter membrane is arranged at the upper part of the rear wall (11) of the tank body; the semiconductor chilling plate (5), the temperature sensor (6) and the air filter (7) jointly form a cell culture environment maintaining system; a glove hole (4) is formed in the center of each tank body side wall (12) and is connected with an operation glove (17) through a telescopic sleeve (16); the control panel (8) is located on the front face of the tank body. The invention has the advantages of simple manufacture, convenient use, low cost and obvious effect.

The invention relates to a sealant for a waterproof photovoltaic frame. The sealant is prepared from the following components in parts by mass: 80 to 100 parts of fluorine modified polyaspartic ester, 100 to 120 parts of silane modified isocyanate, 40 to 60 parts of modified nano titanium dioxide, 8 to 10 parts of curing catalyst and 10 to 15 parts of adhesion promoter. The waterproof sealant has the effect of improving the waterproof performance, the adhesion performance and the aging resistance of the sealant.

The invention discloses an anaerobic denitrifying bacterial agent as well as a preparation method and application thereof, and belongs to the technical field of water environment treatment. The anaerobic denitrifying bacterium agent is prepared from the following components in parts by weight: 15 to 30 parts of sterile water, 15 to 60 parts of normal saline, 5 to 10 parts of micro-capsule embedded anaerobic denitrifying bacteria, 5 to 20 parts of a porous composite modified carrier, 10 to 30 parts of a carbon source, 4 to 7 parts of nutrient elements, 2.5 to 4 parts of a buffering agent and 1 to 5 parts of a stabilizer, the micro-capsule embedded anaerobic denitrifying bacteria are obtained by embedding anaerobic denitrifying bacteria with an alginic acid gel solution and a calcium chloride solution; the porous composite modified carrier is obtained by crosslinking modified nano iron oxide, modified nano titanium dioxide, a functional polymer solution and glutaraldehyde. The anaerobic denitrifying bacterial agent provided by the invention can effectively improve the efficiency of treating nitrogen pollution of a water body.

The embodiment of the invention discloses a multifunctional protection liquid for a paper printed matter and a preparation method of the multifunctional protection liquid. The multifunctional protection liquid is prepared from the following components in percentage by weight: 0.1 to 1 percent of sodium carboxymethyl cellulose, 0.1 to 1 percent of gelatin, 0.1 to 0.5 percent of chitosan, 0.01 to 0.05 percent of nano metal oxide and the balance of water. According to the invention, a composite ultraviolet screening agent compounded by nano titanium dioxide and zinc oxide is adopted, so that full-wave-band ultraviolet screening is realized, and the anti-ultraviolet effect is more excellent than that of a single nano material. Sodium carboxymethyl cellulose is adopted to replace hydroxyethyl cellulose, so that the cost is further reduced, dangerous chemicals are not used, the danger in the preparation process of the protection liquid is reduced, and the protection liquid has a relatively good application prospect.

The present application relates to the technical field of cable, in particular to a kind of anti-aging cable and preparation method thereof.The cable includes conductor, crosslinked polyethylene insulation layer, shielding layer and sheath layer from inside to outside.The sheath layer is prepared by soft polyvinyl chloride resin, butyronitrile rubber, silicon dioxide, silane coupling agent and epoxidized branched modified nano titanium dioxide.Epoxidized branched modified nano titanium dioxide is branched modified nano titanium dioxide by using epoxypropanol and epoxide compound containing naphthalene ring structure, and then modified by epoxidation of epichlorohydrin.Epoxidized branched modified nano titanium dioxide significantly improves the anti-UV aging performance of the cable, reduces the yellowing degree under long-term outdoor exposure conditions, so that the cable has longer service life and higher safety and reliability, and is suitable for various outdoor harsh environments.