948 results about "Nanocrystalline titanium dioxide" patented technology

The invention discloses a flame-retardant high-temperature-resistant fiber and a preparation method thereof, and relates to the technical field of fibers. When the flame-retardant high-temperature-resistant fiber is prepared, 1, 6-hexamethylenediamine, 1, 6-adipic acid, tetrahydrodifuran [3, 4-B: 3 ', 4'-D] furantetraone and a phosphorus-sulfur composite flame retardant are copolymerized to generate a polyamide-polyamide acid solution; 4-aminopyridine and the polyamide-polyamide acid solution are subjected to a reaction, and modified polyamide is prepared; the modified polyamide is subjected to melt spinning, and polyamide fibers are prepared; the preparation method comprises the following steps: pretreating nano titanium dioxide by using 4-bromobutyl trimethoxy silane to prepare modified nano titanium dioxide; mixing the modified nano titanium dioxide and ethanol to prepare a light-resistant antibacterial finishing agent; and carrying out post-treatment on the polyamide fiber by using an anti-light antibacterial finishing agent to prepare the flame-retardant and high-temperature-resistant fiber. The prepared fiber is excellent in comprehensive performance, particularly outstanding in flame retardance and high temperature resistance, and suitable for the fields of special protective clothing, high-temperature filtering materials and the like.

The invention relates to the technical field of insulating materials, in particular to insulating powder and a preparation method thereof. The invention discloses a flame-retardant coating which comprises the following components in parts by weight: 15-25 parts of epoxy resin, 10-20 parts of aluminum hydroxide, 5-12 parts of nano boron nitride, 1-3 parts of a silane coupling agent KH-560, 3-8 parts of polytetrafluoroethylene micro powder, 2-6 parts of fluorine-modified montmorillonite, 4-9 parts of melamine cyanurate, 2-5 parts of nano titanium dioxide, 1-4 parts of a fluorine-modified graphene oxide-polyaniline composite material and 0.5-2 parts of pentaerythritol stearate. The anti-corrosion coating is prepared from the following components in parts by weight: 1 to 3 parts of nano zinc oxide, 5 to 10 parts of glass fiber, 2 to 5 parts of polyhedral oligomeric silsesquioxane-polyimide copolymer, 1 to 4 parts of ferrocenyl epoxy resin and 0.5 to 2 parts of perfluorooctyltriethoxysilane. The insulation powder is high in corrosion resistance, excellent in insulation, heat dissipation and mechanical performance, environmentally friendly in processing, good in adaptability, capable of prolonging the service life of equipment and reducing the cost, suitable for special environments and wide in popularization prospect.

The invention discloses a thermal insulation material with enhanced thermal insulation performance and a processing method, and relates to the technical field of thermal insulation material processing. Comprising the following components in parts by weight: 100 to 200 parts of a nanopore matrix material, 20 to 120 parts of expanded perlite, 10 to 350 parts of polystyrene, 30 to 300 parts of polyurethane, 100 to 500 parts of nano titanium dioxide, 10 to 60 parts of graphene, 10 to 40 parts of silica sol and 1 to 55 parts of ferric oxide. A multi-stage pore structure is constructed through a nanopore matrix and expanded perlite, closed-cell foam of polystyrene and polyurethane is combined, and nano titanium dioxide and graphene functional filler are matched, so that the heat conductivity coefficient is reduced to 0.018 W / (mK) or below, the heat insulation efficiency is remarkably improved, nanoscale homogenization is ensured through high-shear dispersion in the process, the porosity is reserved through freeze drying, and the heat insulation performance is greatly improved. The microcapsule self-repairing layer can repair more than 85% of cracks, the service life is greatly prolonged, and in the aspect of function integration, the material has A-level fireproof, waterproof and weather-proof characteristics and heat preservation and heat insulation performance.

The invention discloses a polyetherketoneketone high-temperature-resistant wear-resistant non-stick coating and a preparation method thereof. The coating is prepared from the following components in parts by mass: 13 to 30 parts of a resin matrix group (containing 12 to 25 parts of titanium modified polyether ketone ketone resin, 1 to 5 parts of fluorine-free viscous resin and 0.65 to 6 parts of aluminum oxide), 0.5 to 3 parts of a nano reinforced group (containing 0.5 to 3 parts of KH-550 modified nano titanium dioxide, 0.025 to 0.6 part of cerium dioxide and 0.5 to 3 parts of boron nitride) and 62 to 71 parts of an auxiliary agent group. The preparation method comprises the following steps: 1) taking diphenyl ether, paraphthaloyl chloride and isophthaloyl chloride as monomers, and synthesizing titanium modified polyether ketone ketone resins with different viscosities through segmented polymerization (1.5-2.0 hours or 3.0-4.0 hours); 2) respectively preparing a smooth bottom layer water dispersion slurry and a wrinkled surface layer water dispersion slurry; and (3) forming a compact bottom layer and a micro-wrinkle surface layer on the base material by adopting a layered spraying and stepped sintering process (280-320 DEG C, 10-20 minutes). The whole system of the coating is fluorine-free and has temperature resistance gt; the coating has the characteristics of high temperature resistance (350DEG C), wear resistance (Taber wear rate of 3-5mg / 1000r), non-sticking (contact angle gt, 100 DEG C) and heavy corrosion resistance, and is suitable for cooking utensils and chemical equipment.

The invention relates to the technical field of high polymer materials, and discloses a polypropylene material for an organic silicon product packaging bottle and a preparation method of the polypropylene material. The preparation method of the polypropylene material for the organic silicon product packaging bottle comprises the following steps: sequentially reacting polypropylene with a modifier and o-vanillin to obtain modified polypropylene; 4-amino-2, 2, 6, 6-tetramethylpiperidine is combined with the surface modified nanometer titanium dioxide, and modified nanometer titanium dioxide is obtained; and mixing the modified nano titanium dioxide, the modified polypropylene and the functionalized montmorillonite, carrying out melt blending, and extruding to obtain the polypropylene material for the organic silicon product packaging bottle. The polypropylene material provided by the invention has excellent mechanical properties, ultraviolet aging resistance, thermo-oxidative aging resistance and barrier property, can be used in organic silicon product packaging bottle materials, and improves the storage stability and safety of organic silicon products.

The invention discloses an anti-ultraviolet spinning yarn and a preparation method thereof, and relates to the technical field of spinning yarns. When the anti-ultraviolet spinning yarn is prepared, 2, 4, 6-tri (4-hydroxyphenyl) boroxane and methylphenyl phosphonium chloride are subjected to a reaction, and a phosphorus-boron composite flame retardant is prepared; the preparation method comprises the following steps: polymerizing indole and 5-(aminomethyl) indole to coat the surface of nano titanium dioxide to prepare pre-modified nano titanium dioxide; the pre-modified nano titanium dioxide and (3-acryloyloxypropyl) tri (trimethylsiloxy) silane are subjected to a reaction, and modified nano titanium dioxide is prepared; mixing poly (pentamethylene diamine adipate), the modified nano titanium dioxide and the phosphorus-boron composite flame retardant, and performing melt spinning to obtain polyamide fibers; spinning polyamide fibers to obtain polyamide spun yarns; the polyamide spinning yarn is sequentially finished with the chloroacetic acid finishing liquid and the isoliquiritigenin finishing liquid, and the anti-ultraviolet spinning yarn is prepared. The anti-ultraviolet spinning yarn prepared by the invention has excellent anti-ultraviolet, flame-retardant and anti-static properties.

The invention belongs to the technical field of building materials, and particularly relates to a building thermal insulation aerogel material and a preparation method, the aerogel material comprises the following components by mass: 25-35 parts of a silicon source, 40-80 parts of a solvent, 0.3-0.6 part of a catalyst, 4-13 parts of an aluminum source, 9-20 parts of reinforcing fibers, 4-10 parts of a modifier, and 20-40 parts of carrier fibers; the silicon source is ethyl orthosilicate or methyl trimethoxy silane; the solvent is absolute ethyl alcohol; the catalyst is hydrochloric acid or ammonia water; the aluminum source is aluminum nitrate nonahydrate or aluminum isopropoxide; the reinforced fibers are nano titanium dioxide fibers; the modifying agent is gamma-aminopropyl triethoxy silane or gamma-methacryloyloxy propyl trimethoxy silane, and the modifying agent is gamma-aminopropyl triethoxy silane or gamma-methacryloyloxy propyl trimethoxy silane; the carrier fiber is rock wool or mineral wool. According to the invention, the thermal insulation aerogel material for buildings, which is high in mechanical strength, good in weather resistance and excellent in thermal insulation performance, can be prepared, so that the requirements of the building industry on high-performance thermal insulation materials can be met.

The invention relates to the technical field of glass cleaning agents, in particular to an environment-friendly cover plate glass cleaning agent and a preparation method thereof. The environment-friendly cover plate glass cleaning agent comprises the following raw materials in percentage by weight: 12-20% of inorganic base, 8-12% of a surfactant, 5-8% of a chelating agent, 3-5% of a humectant, 1-3% of an adsorbent, 1-3% of a dispersing agent, 0.3-1% of a buffering agent and the balance of deionized water, the surfactant is dodecyl glucoside and dodecyl ethyoxyl sulphobetaine, and the weight range ratio of the dodecyl glucoside to the dodecyl ethyoxyl sulphobetaine is (3-1): 1; the chelating agent is one or more of sodium gluconate, sodium polyaspartate and sodium polyepoxysuccinate. According to the present invention, the degradable surfactant and the degradable chelating agent are adopted, and the dispersant is added to modify the nanometer titanium dioxide, such that the low pollution property is achieved while the high decontamination efficiency and the anti-fingerprint ability are considered.

The invention relates to the technical field of building materials, and particularly discloses interior wall waterproof putty powder and a preparation method thereof. Interior wall water-resistant putty powder is prepared from sulphoaluminate cement, nano heavy calcium powder, silica fume, a double-MOF composite nanotube, modified diatomite, polypropylene fiber, nano titanium dioxide, a defoaming agent, a dispersing agent and a mildew preventive, and the double-MOF composite nanotube is obtained by loading copper trimesic acid in an inner cavity of a halloysite nanotube and loading dimethyl imidazole cobalt on the outer wall of the halloysite nanotube; the modified diatomite is obtained by modifying diatomite with stearic acid. The interior wall waterproof putty powder provided by the invention adopts the double-MOF composite nanotube as a core functional material, and under the synergistic effect of multiple components, the water resistance and air permeability of a putty layer are effectively enhanced.

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 discloses self-cleaning antibacterial domestic ceramic and glaze and a preparation process thereof. The preparation process comprises the following steps: step 1, early-stage research and innovative conception; 2, determining a core raw material and a formula; step 3, pretreating the raw materials; step 4, glaze preparation process; step 5, preparing a domestic ceramic green body; step 6, glazing and sintering process; the preparation method has the advantages that nano titanium dioxide added in the glaze can generate free radicals with strong oxidizing property under illumination, organic pollutants on the surface of ceramic can be decomposed, the self-cleaning function is achieved, meanwhile, nano silver and silver-loaded zirconium phosphate have good antibacterial performance, breeding of various bacteria can be effectively inhibited, the anti-bacterial performance is good, the service life of the glaze is prolonged, and the service life of the glaze is prolonged. The antibacterial rate on common bacteria such as escherichia coli and staphylococcus aureus can reach 95% or above, the raw materials are wide in source and meet the environment-friendly requirement, the conventional ball milling, forming, glazing and firing processes are adopted, industrial production is easy, the cost is low, and large-scale popularization of the product is facilitated.

The present invention relates to the field of plastic films, and in particular to an agricultural plastic film and a preparation method thereof. The agricultural plastic film is composed of the following components in parts by mass: 95-105 parts of film particles, 2-4 parts of modified nano-titanium dioxide emulsion, 6-10 parts of lignin nanoparticles, 2-4 parts of tannic acid, 6-10 parts of glycerol, 4-6 parts of maleic anhydride-grafted polycaprolactone as a co-solvent, and 4-6 parts of cellulose nanocrystals. Compared with the prior art, the present invention achieves comprehensive improvement in material degradability, anti-aging performance and processing efficiency, while taking into account production cost optimization and process adaptability. The agricultural plastic film can be widely used in agricultural scenarios such as greenhouse covering and soil moisture retention, has significant advantages in reducing environmental pollution and improving the comprehensive performance of agricultural films, and has broad application prospects.

The invention discloses an anti-yellowing PVB (Polyvinyl Butyral) adhesive for laminated glass and a preparation method thereof, and relates to the technical field of adhesives. The yellowing-resistant PVB glue for the laminated glass has the advantages that the yellowing resistance is high; the modified PVB / nano silicon dioxide composite material is prepared from the following raw materials in parts by weight: 55 to 65 parts of modified PVB resin, 4 to 6 parts of modified nano silicon dioxide, 15 to 20 parts of dioctyl adipate, 0.5 to 1 part of a compound antioxidant, 0.3 to 0.8 part of an ultraviolet absorbent UV-327, 0.2 to 0.5 part of a silane coupling agent KH-560, 0.3 to 0.6 part of ethylene bis stearamide, 0.1 to 0.3 part of 2-benzimidazole methyl carbamate, 3 to 5 parts of tris (1-chloro-2-propyl) phosphate and 0.1 to 0.3 part of nano titanium dioxide. 5 to 8 parts of isopropanol; 0.8 to 1.2 parts of polycarbodiimide. The special modified PVB resin and the nano silicon dioxide are matched with the auxiliary agents such as the compound antioxidant, the anti-yellowing performance of the PVB glue for the laminated glass is remarkably improved through precise process preparation, the components have a synergistic effect, the process is controllable, the product performance is stable, and the cohesiveness is good.

The invention relates to the technical field of metal material surface treatment, in particular to a high-cleanliness rust-proof surface treatment process for a double-H control shell, which comprises the following steps: immersing the shell in an aqueous solution containing hydrofluoric acid, citric acid, nano titanium dioxide-graphene composite powder and polyethylene glycol, and performing ultrasonic degreasing activation; then carrying out coupling treatment by using an ethanol solution containing KH-550 silane and hydroxylated carbon nanotubes; then spraying an anti-rust solution containing fluorine-silicon modified epoxy resin and zinc oxide-titanium dioxide core-shell particles, and carrying out gradient curing to form a film; and finally, after argon plasma bombardment, ultraviolet irradiation hole sealing is carried out. According to the process, through multi-step innovative treatment, a composite protective film is formed on the surface of the shell, particulate pollutants are reduced to 5 / cm < 2 > or below, the contact angle is increased to 130 degrees or above, the salt mist tolerance is over 1500 hours, the film layer is thin, the hardness is high, the adhesive force is high, the environment friendliness and economical efficiency are achieved, and diversified industrial requirements can be met.

The invention relates to the technical field of printed electronic materials, in particular to conductive copper ink for a printed circuit and a preparation method of the conductive copper ink. The conductive mica powder-graphene composite material comprises conductive mica powder, a nano-copper-graphene filler, flaky copper powder, spherical copper powder, an organic carrier, a dispersing agent, a coupling agent, an antioxidant and an auxiliary agent, a layer-point composite conductive structure is constructed through conductive mica powder and nano-copper-graphene filler, a close packing system is formed by combining particle size grading of copper powder with different morphologies, and the conductivity is guaranteed; by means of a chemical bonding interface formed by the coupling agent, the copper powder and the organic carrier, the integrity of the coating is enhanced, and stress cracking during welding is reduced; microencapsulated rosin in the auxiliary agent promotes wetting and spreading of the welding flux, titanate modified nano titanium dioxide constructs a three-dimensional cross-linked network to improve the bending resistance and thermal shock resistance of the coating, the falling phenomenon of components after welding is reduced, and the stability of the conductive copper ink in actual printed circuit production is improved.

The invention discloses nano UV light-cured printing ink and a preparation method thereof, and relates to the technical field of printing ink preparation. The nano UV light-cured printing ink is prepared from nano UV light, the invention discloses a UV (ultraviolet) photoinitiator, which is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyurethane acrylate oligomer, 15 to 30 parts of modified bisphenol A type epoxy acrylate, 10 to 15 parts of tripropylene glycol diacrylate, 5 to 10 parts of ethoxylated trimethylolpropane triacrylate, 5 to 15 parts of modified nano titanium dioxide, 3 to 8 parts of nano silver wire, 2 to 5 parts of photoinitiator 1173 and 1 to 3 parts of benzoin dimethyl ether. The invention relates to a silver-loaded zirconium phosphate composite material which is prepared from the following components in parts by weight: 0.5-2 parts of polyether modified polydimethylsiloxane, 0.3-1 part of a defoaming agent, 1-3 parts of a dispersing agent, 1-5 parts of silver-loaded zirconium phosphate, 0.5-2 parts of an antioxidant 1010, 0.5-2 parts of a coupling agent KH-550 and 10-25 parts of propylene glycol methyl ether acetate. The raw materials are scientifically proportioned and contain various modified components, and parameters of each step are clear. The preparation method is reasonable in process, the performance of the ink is improved through multi-step modification, and the obtained ink is good in dispersity and compatibility, high in curing efficiency and excellent in comprehensive performance and has good practicability and innovativeness.

The invention discloses an inorganic copolymer anticorrosive paint and a preparation method thereof, and relates to the technical field of paints. The invention discloses inorganic copolymer anticorrosive paint. The coating is prepared from the following raw materials in parts by weight: 20 to 30 parts of silica sol, 8 to 15 parts of sodium hydroxide, 30 to 45 parts of metakaolin, 8 to 20 parts of quartz sand, 15 to 25 parts of water, 0.3 to 2 parts of sodium polyacrylate, 0.2 to 3 parts of polydimethylsiloxane emulsion, 5 to 12 parts of modified nano titanium dioxide, 6 to 10 parts of modified epoxy resin, 10 to 25 parts of hydroxyethyl methylacrylate, 5 to 10 parts of zinc phosphate, 3 to 8 parts of aluminum triphosphate and 2 to 6 parts of iron oxide red. The raw materials of the inorganic copolymer anticorrosive paint are scientifically proportioned, and the anticorrosive performance is enhanced through the modified nano titanium dioxide and the epoxy resin. Material uniformity is ensured through step-by-step feeding and ultrasonic dispersion in preparation, and stability is improved through vacuum defoaming and nitrogen protection. The components such as the silica sol and the zinc phosphate have a synergistic effect to form a compact coating, and the coating is high in corrosion resistance, good in constructability and suitable for various scenes.

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 invention provides a pavement coating material with tail gas degradation and CO2 adsorption capacities and a preparation method thereof. Epoxy resin is used as a matrix, polyethyleneimine is loaded on fumed silica through an impregnation method to form a CO2 adsorbent, nano titanium dioxide and a long afterglow material are compounded to realize photocatalytic degradation of tail gas pollutants at the same time, the coating curing time is optimized by controlling the addition amount of polyethyleneimine, and the water resistance is ensured; the catalytic activity in a dark environment is maintained through the long afterglow material, and the coating can degrade NOx, CH and CO and adsorb CO2 under weak light and strong light. By balancing the proportion of adsorption and photocatalysis components, the limitation that a traditional material is single in function, high in light dependence and the like is broken through, efficient tail gas purification and CO2 adsorption are still maintained under the dim light / dark condition, the material is suitable for changeable scenes such as the urban road peak period, and a comprehensive solution is provided for road area pollution treatment and carbon neutralization targets.

The invention discloses a novel BOPP (biaxially-oriented polypropylene) pearlized film loaded with a composite antibacterial material as well as a preparation method and application of the novel BOPP pearlized film, and the specific scheme is as follows: a KH550 coupling agent is hydrolyzed, a hydrolysate is modified on nano titanium dioxide (TiO2) particles, a natural antibacterial material eugenol (Eug) is brominated by a substitution reaction, and an Eug-TiO2 composite antibacterial material is further prepared based on nucleophilic substitution. And finally, carrying out melting plasticizing, extrusion casting and two-way stretching on polypropylene and pearlescent master batch to prepare the novel BOPP antibacterial pearlescent film, so that the strong activity, high stability, long action time, safety and environmental protection of the antibacterial process of the BOPP pearlescent film are realized, the added value attribute of the BOPP product is improved, and the application scene of the BOPP pearlescent film is expanded.

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 discloses a preparation method of a high-barrier aluminum oxide composite film for food packaging, and relates to the technical field of food packaging materials. The high-barrier aluminum oxide composite film for food packaging comprises the following raw materials in parts by weight: a barrier layer: 60-90 parts of modified nano aluminum oxide and 20-30 parts of a silane coupling agent KH-560; the functional layer is prepared from the following components in parts by weight: 18 to 28 parts of nano silver, 16 to 22 parts of compound antioxidant and 4 to 10 parts of nano titanium dioxide; the heat sealing layer is prepared from 22 to 32 parts of modified polylactic acid, 2 to 6 parts of graphene quantum dots, 12 to 16 parts of methyl methacrylate-butadiene-styrene copolymer, 3 to 6 parts of dodecyl trimethyl ammonium chloride, 10 to 14 parts of resorcinol tetraphenyl diphosphate and 7 to 17 parts of stearic acid intercalation modified nano montmorillonite. The high-barrier aluminum oxide composite film for food packaging is prepared by modifying nano aluminum oxide and polylactic acid, the barrier ability to gas, water vapor and ultraviolet rays is greatly improved, and the high-barrier aluminum oxide composite film is oil-resistant and antistatic. The product is high in mechanical strength, high in processing adaptability, capable of adapting to complex scenes, environment-friendly and safe.

The invention relates to a composite phase change cold storage material and a preparation method thereof. According to the technical scheme, 60-90 wt% of deionized water, 4-34 wt% of anhydrous sodium formate, 2-5 wt% of anhydrous potassium sulfate and 1-4 wt% of xanthan gum are evenly mixed and dispersed, and a phase change cold storage medium is prepared; the preparation method comprises the following steps: mixing 64-75wt% of absolute ethyl alcohol, 15-20wt% of deionized water, 9-12wt% of nitric acid solution and 1-4wt% of expanded graphite, and standing to obtain dispersion liquid I; uniformly mixing 60 to 70 weight percent of tetrabutyl titanate and 30 to 40 weight percent of absolute ethyl alcohol, so as to obtain dispersion liquid II; uniformly mixing 30-40wt% of the dispersion liquid II and 60-70wt% of the dispersion liquid I under the condition of 70-100 DEG C, filtering and drying to prepare the nano titanium dioxide coated expanded graphite; 30-40 wt% of expanded graphite wrapped by nanometer titanium dioxide and 60-70 wt% of a phase change cold storage medium are subjected to vacuum impregnation and compression molding, and the composite phase change cold storage material is prepared. The prepared product is high in heat conductivity, large in phase change latent heat value, small in supercooling degree and good in cycling stability.

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 discloses a high-stability perovskite quantum dot diffusion plate and a preparation method thereof, relates to the technical field of high-definition optical display, and belongs to the patent classification number G02B5 / 02. The preparation method comprises the following steps: mixing and melting an inorganic glass raw material and CeO2, quenching, grinding and annealing to obtain pretreated glass powder; the preparation method comprises the following steps: preparing inorganic-organic hybrid layer coated perovskite quantum dots, performing ionic liquid treatment to form double electric layers to protect the quantum dots, and then coating a metal organic framework; mixing nano titanium dioxide with zirconium oxide to obtain composite diffusion particles; the pretreated glass powder, the metal organic framework coated quantum dots and the composite diffusion particles are mixed into a premix, polycarbonate particles are added, then a silane coupling agent and an antioxidant are added, and the diffusion plate is obtained through melt blending and calendaring molding. According to the method, the stability of the quantum dots is improved through a triple protection mechanism, and the prepared diffusion plate is excellent in optical performance.

The invention belongs to the technical field of metal surface rust prevention, and discloses a treating fluid for metal surface rust prevention and a preparation method of the treating fluid. The coating is prepared from components in parts by mass as follows: 5-15 parts of a silane coupling agent, 3-10 parts of nano titanium dioxide, 1-4 parts of benzotriazole, 1-4 parts of molybdate, 1-5 parts of a dispersing agent, 2-6 parts of a coalescing agent, 1-4 parts of a surfactant, 0.5-3 parts of an accelerant, 0.5-3 parts of citric acid, 1-5 parts of acetic acid and 50-80 parts of deionized water. The preparation method comprises the following steps: sequentially adding the components into a stirring processing container according to a certain sequence, and stirring at a certain speed to obtain a treating fluid; according to the technical scheme, through synergistic interaction of all the components, rust can be removed, a layer of compact and continuous protective film can be formed on the metal surface, a very good anti-rust effect is achieved, benzotriazole and molybdate can also form an adsorption film, metal is protected through a large number of films of various types, the anti-corrosion effect of the protective film is improved, and the service life of the protective film is prolonged. The anti-rust effect is greatly improved.

The present application relates to a kind of ultra-low VOC water-based paint and its preparation method, belong to paint technical field, and paint component includes modified acrylic-polyurethane hybrid emulsion, methyl linoleate, choline chloride-glycerol complex, modified nano titanium dioxide photocatalyst, PEG-40 stearate, thickening agent, preservative, pH regulator etc..The present application is prepared by special method modified acrylic-polyurethane hybrid emulsion, modified nano titanium dioxide photocatalyst, then with methyl linoleate, PEG-40 stearate, choline chloride-glycerol complex and other additives are prepared according to certain proportion Cooperation preparation paint, with the effect of fast curing and not cracking, very low VOC volatility, and good water resistance and acid and alkali resistance, strong adhesion.

The application discloses a kind of high water-resistant wall coating and preparation method thereof, belong to wall coating technical field, with single-component modified polysilicon epoxy resin, polysiloxane, silane coupling agent KH550, water-based resin, cerium oxide powder, nano titanium dioxide powder, composite mildew inhibitor powder, dispersing agent, film-forming aid, defoaming agent, leveling agent and water are stirred and mixed, obtain high water-resistant wall coating;The high water-resistant wall coating of the application has good adhesion and water resistance, cold and hot cycle resistance after building exterior wall coating film, and the added composite mildew inhibitor powder has good migration resistance;Vacuum extraction is used to make the mildew inhibitor IPBC enter the hollow structure of sulfonated modified silicon dioxide powder, so as to coat the mildew inhibitor IPBC, slow-release effect is achieved, a layer of zinc nano metal organic framework is generated on the surface, which can further control the release rate of the mildew inhibitor IPBC.

The invention relates to the technical field of building coatings, and discloses a method for preparing a heat-preservation and heat-insulation coating from waste rock wool fibers, according to the method, the waste rock wool fibers are subjected to sorting, crushing and screening pretreatment to obtain fiber particles of 0.5-5 mm, then a modifier solution containing a silane coupling agent and nano titanium dioxide is adopted for ultrasonic-assisted modification treatment, and the heat-preservation and heat-insulation coating is obtained. And drying at 80-120 DEG C to obtain the surface-activated modified rock wool fiber. And mixing the modified fiber with a film-forming substance, a filler, a functional additive and water, performing high-speed dispersion and sanding grinding until the fineness is less than 50 microns, and finally regulating and controlling the performance of the coating through a pH regulator and a rheological additive. According to the invention, the waste rock wool fiber is used as a main heat insulation filler, and through nano-composite modification and process optimization, the prepared heat preservation and heat insulation coating has stable physical properties, excellent heat insulation effect, good weather resistance and durability, so that the final product has excellent construction performance and stable heat insulation effect; the method has economic benefits and environmental protection values.