172 results about "Tio2 nanoparticles" patented technology

Disclosed in the present invention are a fluorosilicone-modified low-surface-energy antifouling coating and a preparation method therefor. The coating comprises the following components in parts by weight: 11-15 parts of butyl acrylate, 3-4 parts of dodecafluoroheptyl methacrylate, 3-4 parts of vinyl-terminated polydimethylsiloxane, 3-4 parts of 2-hydroxy-4-acryloyloxybenzophenone, 30-38 parts of methyl isobutyl ketone, 0.15-0.25 parts of azobisisobutyronitrile, 0.1-0.2 parts of sodium hydroxide, 2-3 parts of modified titanium dioxide nanoparticles, and 0.5-1.5 parts of 3-aminopropyltriethoxysilane. In the present invention, vinylpentamethyldisiloxane reacts with decamethylcyclopentasiloxane to prepare vinyl-terminated polydimethylsiloxane; a titanium dioxide precursor is mixed with polydopamine nanoparticles for modification to prepare modified titanium dioxide nanoparticles; and then the components above are mixed to prepare the fluorosilicone-modified low-surface-energy antifouling coating. The coating has low surface energy and good adhesion and ultraviolet resistance.

The invention discloses a super-hydrophobic road ice-inhibiting coating based on a photothermal effect and nano modified particles and a preparation method of the super-hydrophobic road ice-inhibiting coating. The preparation method comprises the following steps: introducing silane modified nano silicon dioxide (SiO2) and titanium dioxide (TiO2) particles into a polyaniline solution, and preparing the composite super-hydrophobic powder through a chemical oxidation polymerization method. The preparation method comprises the following steps: firstly, modifying the surfaces of SiO2 and TiO2 nanoparticles by adopting a silane coupling agent, and endowing the SiO2 and TiO2 nanoparticles with low surface energy and hydrophobic property; and then adding the modified nano-particles into an aniline monomer solution, reacting with doped acid and an oxidizing agent, so that polyaniline molecules are subjected to in-situ polymerization on the surfaces of the particles, and the composite super-hydrophobic powder with a micro-nano structure is formed. The obtained composite material has excellent photothermal conversion performance and super-hydrophobic performance at the same time, and the efficient photothermal material heat absorption ice melting effect and the synergistic ice restraining effect of the photothermal material and the super-hydrophobic material can be achieved. Compared with a traditional ice-inhibiting coating, the coating disclosed by the invention shows stronger ice-resisting capability in a low-temperature and high-humidity environment, has good durability, mechanical stability and environmental protection property, and is suitable for the field of ice prevention and ice inhibition in cold regions such as roads, bridges, airport runways and the like.

The invention discloses a preparation method of a photoresponsive self-cleaning optical coating with a dynamic self-repairing function. The preparation method comprises the following steps: adding a monomer containing a Diels-Alder reaction bond into a polyurethane prepolymer, and reacting to obtain the polyurethane elastomer with self-repairing capability. An azobenzene derivative is connected to a polyurethane elastomer through a covalent bond, and the photoresponsive self-repairing polymer is obtained. Hydrophobically modified TiO2 nanoparticles are prepared in situ through a sol-gel method. In order to further improve the dispersity of the TiO2 nanoparticles in the polymer, a silane coupling agent is adopted to carry out surface modification on the TiO2 nanoparticles. The preparation method comprises the following steps: mixing a photoresponsive self-repairing polymer and a TiO2 nanoparticle dispersion liquid in proportion, uniformly stirring, coating the mixed liquid on the surface of a base material, forming a uniform coating through a brush coating or spray coating method, and curing the coating at a proper temperature. Due to the excellent characteristics of light response self-repairing, ultraviolet resistance, wear resistance and the like, the coating can keep a long transparent period and good antifouling durability in an outdoor environment.

The invention belongs to the field of bathroom materials, and discloses a UV photocuring hydrophobic antibacterial material as well as a preparation method and application thereof. The purpose of photocuring is achieved by introducing photocurable sulfydryl and vinyl into organic zirconium nanoparticles, titanium dioxide nanoparticles and organic silicon resin: the sulfydryl and vinyl are subjected to click reaction under the irradiation of ultraviolet light, so that the photocuring is rapid, the photocuring is not afraid of oxygen inhibition, the curing can be carried out in the air, and the use is more convenient and rapid. The introduction of the organic zirconium nanoparticles improves the hardness of the material, the introduction of the zwitterion modified titanium dioxide nanoparticles endows the material with antibacterial property, the introduction of the organic silicon resin improves the hydrophobic property of the material, and the prepared photocuring material has extremely high hardness, good adhesion and excellent hydrophobic and antibacterial properties. The hydrophobic antibacterial material is especially suitable for bathrooms.

A magnetic nanoparticle composite microcapsule, and a preparation method therefor and the use thereof. The preparation method comprises: diluting concentrated ammonia water with absolute ethanol in which nano-Fe3O4 is dispersed, stirring same and adding ethyl orthosilicate, centrifuging same, and then performing washing to obtain Fe3O4 / SiO2 particles; dispersing same in anhydrous ethanol, then adding isopropanol containing tetrabutyl titanate, and performing a treatment to obtain Fe3O4 / SiO2 / TiO2 nanoparticles; adding polyurethane TDI prepolymer to the Fe3O4 / SiO2 / TiO2 nanoparticles, adding same to a core material, then dripping an emulsifier, and stirring same to obtain a core material emulsion; and heating same in a water bath, dropwise adding butanediol, and performing heating, stirring and vacuum filtration to obtain a magnetic nanoparticle composite microcapsule. By means of the loading with a core material having a repair function, the prepared magnetic microcapsule can actively repair damage to an insulating material caused by electrical and mechanical stress, thereby improving the reliability of a device.

The invention discloses a waterborne polyurethane composite material as well as a preparation method and application thereof. According to the innovative material, PTMG / PCDL-WPU is taken as basic resin, and silicon dioxide coated titanium dioxide (SiO2 and TiO2) nanoparticles are introduced in a physical blending manner, so that the composite waterborne polyurethane material with excellent performance is constructed. The compounded WPU shows remarkably enhanced mechanical properties and waterproof performance, specifically, the tensile strength is 47MPa, the elongation at break is 780%, and the water absorption is 16%. The developed WPU can significantly improve the hydrostatic pressure resistance of fabrics, provides a new solution for functional modification and structural enhancement of polyamide / polyester flexible textile composite materials, and has important industrial application prospects.

The invention relates to the field of nano-coatings, in particular to a nano-coating for decomposing dirt on a photovoltaic panel based on a photocatalysis technology, the nano-coating is composed of a bottom layer and a self-cleaning layer, and the bottom layer is made of nano-silver; the self-cleaning layer comprises 60 to 70 parts of titanium dioxide nanoparticles, 10 to 20 parts of zinc oxide nanoparticles, 5 to 10 parts of ferric oxide nanoparticles, 5 to 10 parts of zirconium dioxide nanoparticles, 60 to 120 parts of a solvent, 1 to 3 parts of a dispersing agent, 0.5 to 1.5 parts of a thickening agent and 1 to 3 parts of an antirust agent; the bottom layer and the self-cleaning layer are creatively added on the outer side of the photovoltaic panel, the basic bottom layer has good conductivity, antibacterial property and corrosion resistance, the self-cleaning layer can effectively keep transparency of photovoltaic glass on the surface of the photovoltaic panel by constructing concave-convex structure roughness below 50nm, and the self-cleaning layer has good anti-corrosion performance. And the nanometer coating can effectively decompose organic matter dirt on the surface of the photovoltaic panel under the illumination condition, the cleaning frequency is reduced by 80% or above, and the manual operation and maintenance amount is reduced.

The invention discloses cold-rolled strip steel anti-rust oil containing TiO2 nanoparticles and a preparation method of the cold-rolled strip steel anti-rust oil. The cold-rolled strip steel anti-rust oil comprises the following components: TiO2 nanoparticles, a composite surface modifier, composite base oil, a composite anti-rust agent, a composite extreme pressure anti-wear agent, a composite oiliness agent, a composite antioxidant and a composite defoaming agent. According to the method, the nanotechnology and the anti-rust technology are combined, the anti-rust oil with excellent anti-rust performance is developed, the adhesion of an oil film is enhanced through nanoscale TiO2 particles, the anti-rust performance of the anti-rust oil is effectively improved, and the storage life and the service life of cold-rolled strip steel are prolonged.

The invention belongs to the technical field of textile materials, and discloses an easy-to-dye composite polyester fiber and a preparation method thereof. The preparation method comprises the following steps: by taking polyethylene glycol terephthalate as a core layer and low-melting-point polyester as a skin layer, carrying out melt spinning to prepare skin-core composite fibers; after heating and melting a skin layer, bombarding by using a titanium dioxide nano particle flow to obtain roughened fibers; after plasma treatment, dipping with an activating solution of triethylamine and 4-methylbenzenesulfonyl chloride to obtain activated fibers; carrying out ultrasonic reaction on the activated fiber and a modifier under the catalysis of tetrabutyl titanate, and washing and drying to obtain the easy-to-dye composite polyester fiber. The prepared composite polyester fiber not only has the advantage of being easy to dye, but also has excellent antibacterial performance and flame retardant performance, and the quality of the composite polyester fiber is effectively guaranteed.

The invention discloses a preparation method of a TiO2 / MIL-101 (Cr) photocatalyst, belongs to the technical field of photocatalysts, and aims to prepare a series of TiO2 / MIL-101 (Cr) heterojunctions for photocatalytic hydrogen production through in-situ growth of TiO2 nanoparticles on the MIL-101 (Cr) surface by a hydrothermal method. By adopting the preparation method of the TiO2 / MIL-101 (Cr) photocatalyst with the structure, the photocatalytic hydrogen production performance is improved, the excellent hydrogen production performance is attributed to a TypeII heterostructure formed by TiO2 and MIL-101 (Cr), electron and energy band structures in a composite material are optimized, and separation and transmission of photon-generated carriers are promoted, so that the catalytic activity is improved.

The invention discloses a preparation method of a vanadium battery electrolyte oxidation corrosion resistant composite membrane, which comprises the following steps: S1, uniformly dispersing graphene oxide nanosheets on the surface of an SPEEK (sulfonated polyether ether ketone) matrix by using sulfonated polyether ether ketone as a substrate to obtain an SPEEK / GO (graphene oxide) substrate; s2, treating the SPEEK / GO substrate in oxygen plasma treatment equipment, and ultrasonically cleaning the SPEEK / GO substrate with isopropanol for 10-20 minutes; s3, dissolving polybenzimidazole in N, N-dimethylacetamide (the concentration is 3-5wt%), and magnetically stirring until the polybenzimidazole is completely dissolved; the preparation method comprises the following steps: adding TiO2 nanoparticles (the particle size is 20-25nm, and the TiO2 nanoparticles are pretreated by a silane coupling agent KH-570) according to the mass ratio of 15-20%, ultrasonically dispersing and carrying out ice bath to obtain PBI-TiO2 dispersion liquid; s4, the SPEEK / GO substrate treated in the step S1 is vertically immersed in PBI-TiO2 dispersion liquid, the final coating thickness is 1.5 + / -0.2 [mu] m, and a pretreated film is obtained; and S5, carrying out hot pressing on the pretreated membrane by using a hot press, and then carrying out gradient cooling to room temperature to obtain the final composite membrane. The vanadium battery is better in vanadium resistance and corrosion resistance and suitable for high-power-density vanadium batteries.

The invention discloses a nanoscale super-antiskid ceramic tile and a preparation method thereof, and relates to the technical field of ceramic tile production, and the technical scheme is that the preparation method comprises the following steps: S1) preparing a ceramic tile matrix; s2) treating the surface of the ceramic tile; s3) preparing an anti-skid coating; s4) application of the anti-skid coating; s5) surface characteristic adjustment; according to the embodiment of the invention, a unique micro-nano-scale surface structure is formed by using a composite system of the cellulose nanocrystal hydrogel, the sodium polyacrylate mixture, the polylactic acid and the specific nanoparticles, so that excellent anti-skid performance is provided under wet and slippery conditions. And the gamma-methacrylic acid acrylic ester silane is used for carrying out surface modification on the nano particles, so that the nano particle compatibility and stability of the coating are improved, and the long-term durability and the continuous anti-skid effect of the coating are ensured. After the added titanium dioxide nanoparticles are irradiated by ultraviolet rays, the surface of the ceramic tile is endowed with a photocatalytic self-cleaning function, the cleaning and maintenance requirements are reduced, and meanwhile, continuous anti-skid protection is provided.

The invention discloses a formaldehyde-free composite board for a cabinet and a preparation method of the formaldehyde-free composite board, and relates to the technical field of artificial board manufacturing. The preparation method of the formaldehyde-free composite board for the cabinet comprises the following steps: mixing high amylose with a choline chloride / urea deep eutectic solution, stirring, adding concentrated hydrochloric acid for reaction, adjusting the pH value, and adding ammonium persulfate to obtain pretreated oxidized starch; methacrylic acid dehydrated glyceride is added into the pretreated oxidized starch for a grafting reaction, then modified polyvinyl alcohol is added for blending, sodium metaphosphate is added for crosslinking, finally, heating and curing are conducted, modified titanium dioxide nanoparticles are added, and the formaldehyde-free starch adhesive is obtained. The wood shavings and the formaldehyde-free starch adhesive are mixed, and a core material is obtained; and arranging the core material between the formaldehyde-free veneers, and carrying out hot press molding to obtain the formaldehyde-free composite board. The formaldehyde-free composite board for the cabinet has excellent mechanical strength, bonding performance and water resistance.

The invention relates to a super-amphiphobic coating with a dual self-repairing function and a preparation method of the super-amphiphobic coating. According to the super-amphiphobic coating, crack self-repairing is achieved through dynamic disulfide bonds, and low-surface-energy substance self-repairing is achieved through microcapsules. The preparation method comprises the following steps: firstly, modifying hydroxyl-terminated polydimethylsiloxane by using an isocyanate prepolymer containing disulfide bonds, then modifying TiO2 nanoparticles by using 3-aminopropyltriethoxysilane and octadecyltrimethoxysilane, and preparing a microcapsule which takes polyamide as a shell and perfluorooctyltriethoxysilane as a core material, and finally, carrying out ball-milling mixing on the disulfide bond-containing polyurethane modified organic silicon resin, the modified TiO nanoparticles, microcapsules and 2-hydroxy-2-methyl propiophenone, and spraying the mixture on the surface of a base material to obtain the super-amphiphobic coating with the dual self-repairing function. According to the super-amphiphobic coating with the dual self-repairing function and the preparation technology thereof, the coating achieves high durability through dual self-repairing, and the hydrophobic and oleophobic performance is high.

The invention relates to a low-odor regenerated polypropylene composite material as well as a preparation method and application thereof. The composite material comprises 60-80 parts of polypropylene resin; 5-10 parts of a toughening agent; 20 to 30 parts of a filling agent; 0.2 to 0.5 part of an antioxidant; 0.2 to 0.5 part of a lubricant; 0.2 to 3 parts of compatilizer; and 0.3 to 1.5 parts of an odor inhibitor. Wherein the odor inhibitor is a compound of an MOFs material and TiO2 nanoparticles, the prepared MOFs material not only has high porosity, high specific surface area and a micro-mesoporous structure, but also is rich in a conjugated benzene ring structure and an oxygen-containing functional group, can adsorb volatile odor substances generated by melt extrusion of a polypropylene reclaimed material, and can be used for preparing the odor inhibitor by combining the photocatalysis of TiO2. Organic molecules emitted by a material system are further effectively decomposed, the smell is greatly improved through the synergistic effect, the polypropylene material can be applied to interior and exterior trim parts of automobiles, and recycling of waste polypropylene is effectively promoted.

The invention provides a preparation method and application of a high-sensitivity imprinted membrane for selectively detecting microcystic toxins (MC-LR) in water based on surface enhanced Raman scattering. The preparation method comprises the following steps: step 1, preparation of silver nanocubes; step 2, preparation of Ag NCs-coated TiO2 nanoparticles; step 3, preparation of an Ag NCs-coated TiO2 / PDMS composite membrane; according to the invention, a membrane technology, an SERS technology and MIT are combined, so that the prepared product has excellent physical and chemical properties of a PDMS membrane, high sensitivity of an SERS detection technology and high selectivity of MIT; the invention provides a new method for SERS detection and widens the application range.

The invention provides a water-based anticorrosive coating and a preparation method thereof, and belongs to the technical field of coating preparation, and the preparation method comprises the following steps: S1, preparing a modified kanaba wax microneedle: adding molten kanaba wax into a glass fiber dispersion liquid, and uniformly stirring to obtain a mixed solution; pouring the mixed solution into a mold, cooling and curing, and drying to obtain the modified kanaba wax microneedle; s2, taking water-based acrylic resin and water-based epoxy resin, adding a solvent, stirring at a low speed, adding a wetting agent and a defoaming agent, and stirring at a high speed; and adding the modified TiO2 nanoparticles, siloxane-based acrylate, the modified SiO2 nanoparticles and the modified canaba wax microneedles, mixing, and uniformly dispersing to obtain the water-based anticorrosive paint. According to the technical scheme provided by the invention, the purpose of simultaneously improving the matte performance and waterproof performance of the coating is achieved, and the effect of keeping corrosion resistance is achieved.

The invention relates to the technical field of photocatalytic processes, in particular to a catalyst for preparing methanol through photocatalytic reduction of CO2 as well as a preparation method and application of the catalyst. The catalyst comprises a composite carrier and active sites dispersed on the surface or in pores of the composite carrier, the composite carrier is of a heterojunction composite structure formed by a hollow TiO2 sphere and MCN, the hollow TiO2 sphere comprises a shell layer and a spherical cavity structure located in the shell layer, the shell layer is formed by TiO2 nanoparticles, and the MCN has a mesoporous pore structure; a II-type or Z-type heterojunction interface is formed between the hollow TiO2 spheres and the MCN through physical contact and chemical action; the active sites comprise copper nano species, sulfur vacancy defects and amino groups; the copper nano species are copper nano particles or clusters, and the valence state of copper is 0 and / or + 1 valence amino is grafted on the surface of the composite carrier through an organic long chain. The catalyst provided by the invention can greatly improve the yield and selectivity of methanol prepared by photocatalytic reduction of carbon dioxide.

The invention relates to a microencapsulated thermochromic material. The microencapsulated thermochromic material comprises an inner core and a shell coating the inner core, the shell is prepared from melamine formaldehyde resin and anti-ultraviolet composite particles according to the volume ratio of (70 to 60) to (30 to 40); the inner core is a mixture of an electron transfer type organic compound and an inorganic phase change reinforcing agent, and the inorganic phase change reinforcing agent is composed of TiO2 loaded with 5-15 wt% of AgI nanoparticles; the anti-ultraviolet composite particles are formed by grafting silane coupling agent modified nano zinc oxide and a benzotriazole ultraviolet absorbent. The invention further relates to a color-changing floor prepared from the microencapsulated thermochromic material, and the color-changing floor is good in weather resistance and high in heat stability and temperature sensitivity.

The invention belongs to the field of new materials, and particularly relates to a super-hydrophobic composite coating with mechanical firmness, self-cleaning property and high wear resistance, a method and application thereof. According to the preparation method, epoxy resin (E51) is adopted as a binder, quartz sand, modified F-TiO nano particles and SiO nano particles are combined, and the quartz sand / F-TiO / SiO coated EP super-hydrophobic composite coating of a double-layer structure is prepared through a simple and convenient blade coating-spraying process. According to the coating, through multi-scale hierarchical structure design and low surface energy modification, a static water contact angle of 151 degrees and 1t are achieved; the rolling angle of 5 degrees shows excellent self-cleaning performance on liquid and solid pollutants. A mechanical stability test shows that in a Taber abrasion test, the coating still keeps good hydrophobicity after being abraded for 3000 cycles under the load of 250 g and abraded for 600 cycles under the load of 750 g; after 500 times of adhesive tape stripping experiments, the static water contact angle is still greater than 120 degrees, the rolling angle is as low as 5 degrees, and excellent wear resistance and substrate adhesion are shown.

This invention discloses an energy storage type TiO2 / CN X The photoanode of WO3 composite material and its preparation method include the following steps: preparing WO3 nanorods by hydrothermal method; adding WO3 nanorods and anionic surfactant to water, sonicating, adding pyrrole, stirring, and then adding an initiator solution dropwise under ice bath conditions, stirring, and obtaining WO3 / PPy composite after reaction; adding WO3 / PPy composite and anionic surfactant to an alcohol solution, sonicating and stirring, adding tetrabutyl titanate, glacial acetic acid and acetone, and then adding an aqueous alcohol solution dropwise, transferring to a hydrothermal reactor for reaction, obtaining precursor TiO2 / PPy / WO3 composite after hydrothermal reaction; loading the precursor TiO2 / PPy / WO3 composite onto a conductive substrate. TiO2 / CN X / WO3's excellent sustained photocathode protection performance can be attributed to the highly conductive CN X In synergy with WO3, a narrow-bandgap semiconductor with energy storage properties, TiO2 nanoparticles with stable photoelectrochemical properties serve as the main material, ensuring the stability of the photoelectric performance of ternary materials.

The application discloses a kind of photocatalytic performance composite materials, the composite material is schulte mineral-titanium dioxide supported biochar, the surface of the biochar is loaded with schulte mineral and titanium dioxide, and the schulte mineral is also connected titanium dioxide.The composite material obtained by the application has excellent structural effect, the surface of the biochar with wrinkle structure is uniformly covered with schulte mineral and TiO2, wherein the schulte mineral is also combined with TiO2 closely.The composite material of the application can effectively enhance the electron transfer efficiency of photoelectronic and hole, increase the catalytic efficiency of catalyst.The composite material of the application has the advantages of short processing time and large capacity of processing.The precursor material for material synthesis is derived from waste biomass resources, FeSO4·7H2O is widely available and low in price, and TiO2 nanoparticles is low in price, so the catalyst in the application has the advantages of low cost, easy popularization and easy operation.

The invention discloses a photochromic TiO2-PEG200 (Polyethylene Glycol 200) nano particle and an application of the photochromic TiO2-PEG200 nano particle in photocatalytic oxidation of a C-H bond. The catalyst is synthesized through a solvothermal method, PEG200 is used as a solvent and a modifier, and self-doped Ti < 3 + > and surface oxygen vacancies are introduced into TiO2. Under the irradiation of blue light (405nm), the catalyst generates a photochromic effect, Ti < 4 + > is reduced into high-concentration Ti < 3 + > in situ, and meanwhile, a large amount of superoxide free radicals (O < 2 + >) are generated. A photo-generated hole directly activates an ethylbenzene alpha-C-H bond to generate a benzyl free radical, and the benzyl free radical reacts with a superoxide free radical (O2.) and is finally converted into acetophenone. The catalyst has excellent visible light response and charge separation efficiency, and the acetophenone yield is up to 56 mmol.g <-1 >. H <-1 > and is 10 times that of traditional TiO2. The reversible circulation of Ti < 3 + > / Ti < 4 + > enables the catalyst to maintain good stability, and the activity is still maintained at 95% or above after five times of circulation. The operation conditions are mild (room temperature and normal pressure), a strong oxidant is not needed, an efficient, stable and environment-friendly photocatalysis solution is provided for C-H bond activation, and the method has important application value in the field of fine chemical synthesis.

This invention provides a method for preparing a superhydrophobic silk / ultrafine viscose high-softness fabric, comprising the following steps: S1. Degumming the silk / ultrafine viscose fabric to obtain a degummed silk / ultrafine viscose fabric; S2. Adding hydrophobic micron-sized flake-like aerogel powder to ethyl acetate solvent and stirring to mix evenly to obtain a hydrophobic finishing solution; S3. Applying the hydrophobic finishing solution prepared in S2 to the surface of the fabric after degumming in step S1 in one direction, and then drying the fabric, repeating the application in the same direction as the first application to obtain a silk / ultrafine viscose fabric with a surface covered with flake-like powder; S4. Adding PDMS and hydrophobic nano-TiO2 nanoparticles to a spinnable tetraethyl orthosilicate solution, mixing and stirring evenly, and aging to a spinnable viscosity, using the side of the fabric surface covered with flake-like powder as the receiving surface, and performing electrospinning to obtain a superhydrophobic silk / ultrafine viscose high-softness fabric.

A titanium dioxide (TiO2) composition and methods of use, the composition containing surface-modified doped TiO2 nanoparticles (sm-TiO2 NPs) disposed in a polymer matrix material, wherein each sm-TiO2 NP has an outer surface having a plurality of bifunctional linker molecules attached thereto and a plurality of protein molecules linked to the sm-TiO2 NP via the bifunctional linker molecules; and wherein the polymer matrix comprises a polymer precursor component.

The invention provides an acrylic foam tape and a preparation process thereof, and relates to the technical field of adhesives, the acrylic foam tape comprises the following components by weight: 50-70 parts of an acrylate monomer, 0.1-1 part of a cross-linking agent, 0.1-0.5 part of an initiator, 10-30 parts of tackifying resin, 5-15 parts of a polyurethane foaming agent, and 1-5 parts of cellulose nanocrystals. 0.5 to 3 parts of titanium dioxide nano particles, 1 to 3 parts of chitosan nano fibers and 1 to 3 parts of hydroxyapatite. According to the environment-friendly adhesive tape, the cellulose nanocrystals are added, so that the mechanical strength and toughness of the adhesive tape are improved, and meanwhile, the environment-friendly characteristic is kept; the titanium dioxide nanoparticles are added to endow the adhesive tape with photocatalytic self-cleaning and antibacterial functions, so that surface dirt can be effectively decomposed and bacterium breeding can be inhibited, and the sanitation performance of a use scene is improved; the chitosan nanofibers further enhance the antibacterial performance of the adhesive tape, endow the adhesive tape with certain biocompatibility and moisture absorption performance, and improve the adaptability and stability in the use process.

The invention discloses a preparation method and application of graphene and TiO2 composite resin, and belongs to the technical field of photocatalytic composite materials. According to the technical scheme, the preparation method of the graphene and TiO2 composite resin is characterized by comprising the following steps: S1, preparing oleophylic TiO2 nanoparticles; s2, preparing a graphene / TiO2 compound; s3, preparing an oil phase solution, namely dissolving the graphene / TiO2 compound prepared in S2 into a pore-foaming agent, respectively adding a monomer and an initiator, and uniformly mixing under an ice bath condition; s4, synthesizing graphene and TiO2 composite resin with an adsorption / catalysis synergistic function; intermediate products generated in the photocatalytic reaction process are adsorbed on the surface of the adsorbent, so that degradation intermediates can be completely degraded into CO2, water and other inorganic matters without leaving the surfaces of catalyst particles in time, and the problem of secondary pollution possibly generated by the degradation intermediates is avoided.

The invention discloses a full-spectrum response type aerogel photocatalyst as well as a preparation method and application thereof. The full-spectrum response type aerogel photocatalyst has a multi-heterostructure, and the multi-heterostructure comprises an in-plane heterostructure of amorphous carbon, graphite carbon and a BCN ring and a TiO2 mixed crystal phase structure of anatase type TiO2 and rutile type TiO2. The catalyst can be applied to preparation of methanol through photo-thermal catalytic reduction of CO2 in any single wave band range or combined wave band range in ultraviolet light, visible light and near-infrared light; the preparation method of the full-spectrum response type aerogel photocatalyst comprises the following steps: a) preparation of reduced TiO2 nanoparticles; b) preparation of aerogel; and c) high-temperature carbonization. The aerogel photocatalyst not only can realize full-spectrum response, but also can realize in-situ generation and regulation of oxygen vacancies in photo-thermal catalysis, so that the efficiency of reducing CO2 to prepare methanol is improved.

The present invention provides an aqueous anti-corrosion coating and a preparation method thereof, belonging to the technical field of coating preparation, and comprising the following steps: S1. Prepare modified carnauba wax micro needles: Add molten carnauba wax into a glass fiber dispersion liquid, stir evenly to obtain a mixed solution; Pour the above-mentioned mixed solution into a mold, cool and solidify, and obtain modified carnauba wax micro needles after drying; S2. Take an aqueous acrylic resin and an aqueous epoxy resin, add a solvent and stir at a low speed, add a wetting agent and an anti-foaming agent and stir at a high speed; Add modified TiO2 nanoparticles, a siloxanyl acrylate, modified SiO2 nanoparticles and modified carnauba wax micro needles, mix and disperse evenly to obtain an aqueous anti-corrosion coating. The technical solution provided by the present invention realizes the purpose of simultaneously improving the matte performance and waterproof performance of the coating, and achieves the effect of maintaining anti-corrosion.

The invention discloses a preparation method of a three-dimensional moisture transport fabric, specifically comprising the following steps: (1) first 1H, 1H, 2H, 2H-perfluorooctyl triethoxysilane is dissolved in ethanol, stirred, and then TiO2 nanoparticles are added, mixed, and a suspension is obtained; (2) cotton fabric is added to the suspension and soaked, taken out and cleaned, and aired to obtain a super-hydrophobic cotton fabric; (3) the outside of the super-hydrophobic cotton fabric is subjected to ultraviolet irradiation, and a wetting gradient is constructed in the outside length direction; (4) the inside of the super-hydrophobic cotton fabric is subjected to ultraviolet irradiation, and a wetting gradient is constructed in thickness direction. The present invention transports and manages moisture outside the fabric, which will be conducive to improving the comfort of the inside of the fabric, and avoids the fabric moisture management ability decline caused by water saturation outside the fabric.