1113 results about "Anhydrous ethanol" patented technology

The invention discloses a preparation process of an aluminum oxide ceramic material, which comprises the following steps: S1, pretreatment of aluminum oxide powder: taking alpha-Al2O3 powder as a raw material, adding a dispersion medium, carrying out ball milling, transferring into an ultrasonic dispersion machine, dispersing, and further carrying out vacuum drying to obtain pretreated aluminum oxide powder; s2, chemical activation treatment: weighing pretreated aluminum oxide, magnesium oxide, nano silicon dioxide, calcium oxide, zirconium dioxide, titanium dioxide and modified nano silicon carbide in parts by weight, mixing, sequentially adding a dispersing agent absolute ethyl alcohol and a KH550 silane coupling agent, stirring at a high speed, adding a polyvinyl alcohol binder, and continuously stirring to obtain ceramic slurry; s3, sieving the ceramic slurry, filling the ceramic slurry into a mold, and performing isostatic pressing to obtain a ceramic green body; and S4, putting the ceramic green body into a box-type sintering furnace, sintering step by step, and cooling to room temperature along with the furnace to obtain the aluminum oxide ceramic material. The prepared aluminum oxide ceramic material has high compactness, excellent dielectric strength and mechanical property, low energy consumption and great application potential.

The invention discloses a synthetic method of a water soluble ultraviolet light absorber BP-9. The method mainly comprises the following process steps: (1) carrying out methylation on the main raw materials of 2, 2', 4, 4'-tetrahydroxyl benzophenone, a transition metal salt catalyst and a mixed solvent which is prepared from dichloroethane and anhydrous ethanol in equal parts by weight to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone; (2) carrying out sulfonation reaction on the main raw materials of methylate, sulfamic acid and C1-C3 halohydrocarbon to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone-5, 5'-disulfonic acid; and (3) carrying out neutral reaction on the main raw materials of sulfonated product, inorganic base and ethanol water to finally obtain the BP-9 product. The synthetic method disclosed by the invention is few in reaction step, low in cost, high in product purity and stable in quality, and raw materials are easily available.

The invention discloses a high-strength hoop and a processing method thereof in the technical field of mechanical connection fasteners. The high-strength hoop comprises the following raw materials: modified carbon fibers, a modified epoxy resin matrix, chopped glass fibers, an antioxidant and an aluminate coupling agent. Cleaning the modified carbon fibers with acetone to remove oil stains, oxidizing the modified carbon fibers with concentrated nitric acid at 80-85 DEG C to generate polar functional groups containing hydroxyl and carboxyl, washing the modified carbon fibers with water until the modified carbon fibers are neutral, drying the modified carbon fibers, immersing the modified carbon fibers into an absolute ethyl alcohol solution of an aluminate coupling agent for ultrasonic dispersion, and curing the modified carbon fibers at 100-105 DEG C; the modified epoxy resin matrix is prepared by heating and melting epoxy resin, adding nano montmorillonite, stirring and dispersing, adding polyamide, an accelerant and a flexibilizer, and carrying out vacuum defoaming at 100-105 DEG C. The hoop has the advantages of high strength, weather resistance and the like by modifying and enhancing interface bonding and matrix toughness, and is suitable for connection under complex working conditions.

The invention provides a photo-thermal evaporation material based on black titanium dioxide as well as a preparation method and application of the photo-thermal evaporation material. The preparation method comprises the following steps: mixing urea, absolute ethyl alcohol and tetrabutyl titanate into a solution A, mixing absolute ethyl alcohol, ultrapure water and hydrochloric acid into a solution B, dropwise adding the solution B into the solution A, mixing to form a white colloid, heating in a water bath, drying, and calcining in a nitrogen atmosphere to obtain black titanium dioxide powder; the preparation method comprises the following steps: fully mixing a certain amount of black titanium dioxide, sodium alginate and ultrapure water to form a uniform dispersion liquid, dipping the pretreated polyurethane sponge in the dispersion liquid, and crosslinking with a calcium chloride solution to prepare the photo-thermal evaporation material of the black titanium dioxide-calcium alginate composite hydrogel. The photo-thermal evaporation material breaks through the photo-thermal application bottleneck of traditional titanium dioxide, has excellent evaporation rate and seawater desalination performance, and can effectively remove various printing and dyeing wastewater to obtain clean water.

The invention discloses a preparation method of a nano HZSM-5 molecular sieve, and belongs to the technical field of nano molecular sieve preparation, the preparation method comprises the following steps: 1, adding a silicon source, an aluminum source and a template agent into a supercritical crystallization reaction kettle, heating, stirring, and carrying out a melting reaction on the raw materials to obtain a seed crystal mixed material; introducing absolute ethyl alcohol into the seed crystal mixed material obtained by the melting reaction, heating, stirring, and carrying out crystallization reaction to obtain a reaction product; and cooling, washing, drying and roasting the obtained reaction product to obtain the nano HZSM-5 molecular sieve. According to the present invention, the melting reaction and the supercritical ethanol crystallization reaction technology are introduced into the preparation of the nanometer HZSM-5 molecular sieve for the first time, and the prepared nanometer HZSM-5 molecular sieve has advantages of small grain size, uniform distribution, large specific surface area and high yield.

The invention discloses a corrosion-resistant stainless steel pipe and a preparation method thereof, and application of the pipe in marine engineering, and belongs to the technical field of stainless steel materials, and is used to solve the technical problem that the corrosion resistance and antifouling performance of stainless steel in the prior art need to be improved; wherein the preparation method of the corrosion-resistant stainless steel pipe comprises: adding epoxy-modified titanium dioxide and 2-aminoethyl methacrylate to anhydrous ethanol, stirring, adding hydrochloric acid aqueous solution, heating, reacting, and obtaining modified titanium dioxide; adding epoxy-modified carbon quantum dots and modified titanium dioxide to the hydrochloric acid aqueous solution, heating, reacting, and ending the reaction, filtering, washing, and drying to obtain epoxy-modified carbon quantum dot grafted modified titanium dioxide; the corrosion-resistant stainless steel pipe prepared by the invention not only has good corrosion resistance and antifouling performance, meets the application of the pipe in marine engineering, but also has good weather resistance and durability, is conducive to prolonging the service life, and reduces the cost of later maintenance.

The invention discloses a method for constructing a foamed nickel hydrogen evolution electrode with a multi-layer gradient structure based on two-step electrodeposition. According to the method, the in-situ growth of a multilayer gradient structure catalyst layer is realized by regulating and controlling the current density, and the core process comprises the following steps: 1, pretreatment of an electrode substrate: carrying out ultrasonic cleaning on foamed nickel through hydrochloric acid, absolute ethyl alcohol and deionized water in sequence, and removing surface impurities; 2, step-by-step electro-deposition of the gradient catalyst layer: firstly, electro-deposition is carried out under low current density to form a uniform and compact transition catalyst layer, the contact area between the catalyst layer and the base material is increased, and the durability and stability of the catalyst layer are improved; and then switching to high current density for bubble template method electrodeposition, spontaneously forming a catalyst layer with an inverted cone-shaped hole array structure by utilizing the dynamic template effect of violent hydrogen evolution bubbles, and promoting rapid removal of the bubbles by utilizing the hole array. The electrode prepared by the method has excellent stability, bubble removal capability and catalytic activity in hydrogen evolution reaction.

The invention discloses an acidic organic fertilizer and a preparation method thereof, relates to the technical field of organic fertilizers, and solves the problems of high alkalinity, fast decomposition and poor long-term carbon sequestration stability of existing organic fertilizers. The preparation method comprises the following steps: adding charcoal powder and FeCl3. 6H2O into absolute ethyl alcohol, uniformly stirring, performing ultrasonic treatment, drying, uniformly grinding, calcining in a muffle furnace, and grinding again to obtain charcoal-loaded nano iron particles; uniformly mixing fresh pig manure and / or chicken manure with crushed rice and / or corn straw, and adjusting the water content with water; adding charcoal-loaded nano-iron particles, uniformly mixing, and piling into a strip pile body; the temperature of the pile body is tested in real time, the pile is turned for multiple times in the heating process when spontaneous heating begins, the pile is not turned in the cooling process when spontaneous heating ends, when the temperature of the pile body is reduced to 40 DEG C or below, composting is finished, and the decomposed pile body sample is smashed to obtain the acidic organic fertilizer. The method has wide popularization and application prospects in agricultural waste resource utilization and organic fertilizer production.

The invention provides aeolian sand mortar internally doped with aluminate coupling agent modified fly ash and a preparation method of the aeolian sand mortar. The aeolian sand mortar comprises the following raw materials by mass: 10-40g of modified fly ash; 60 to 90 g of cement; 300 to 350 g of aeolian sand; 45 to 55g of water; wherein the modified fly ash is prepared through wet modification of an aluminate coupling agent, and the preparation method of the modified fly ash comprises the following steps: mixing the aluminate coupling agent and absolute ethyl alcohol according to a mass ratio of 1: (3-5), heating, and stirring for the first time until a transparent solvent is formed; and adding the transparent solvent and fly ash into water together, stirring for the second time to form slurry, and drying to obtain the super-hydrophobic modified fly ash. Through innovative selection of internal doping materials and optimization of a preparation process, the mortar has excellent, lasting and stable hydrophobic performance, the anti-permeability, compressive strength, bonding strength and other performance of the mortar are remarkably improved, and the strict requirements of modern constructional engineering for high performance and long service life of the mortar are met.

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 belongs to the technical field of redox flow batteries, and particularly discloses a high-performance hierarchical pore carbon felt electrode for a flow battery and a preparation method of the high-performance hierarchical pore carbon felt electrode for the flow battery. Zinc salt or bismuth salt is dissolved in a solvent, and a precursor solution is obtained through stirring and ultrasonic treatment; dipping the pre-oxidized felt into the precursor solution, performing ultrasonic treatment, taking out and drying; and carbonizing the dried carbon felt at a high temperature in a protective atmosphere, treating with nitric acid, cleaning with deionized water, and drying to obtain the hierarchical porous carbon felt electrode with high activity and high specific surface area. The prepared high-performance hierarchical pore carbon felt electrode has a multi-scale pore structure and rich active sites, the specific surface area, the conductivity and the catalytic activity are remarkably improved, meanwhile, the hydrophilicity is optimized, and the electrolyte wettability is enhanced. The method is short in technological process, high in efficiency, low in cost and suitable for large-scale production and industrial application of the high-performance carbon felt electrode.

The invention provides an antistatic agent for fuel oil and a preparation method thereof, and belongs to the technical field of petrochemical engineering, and the preparation method comprises the following steps: S1, adding soybean lecithin and chlorosulfonic acid into dichloroethane, uniformly mixing, under the protection of nitrogen, heating and stirring for reaction, neutralizing reaction liquid, and performing rotary evaporation to obtain sulfonated soybean lecithin; the preparation method comprises the following steps: adding sulfonated soybean lecithin and ethidene diamine into absolute ethyl alcohol, then adding p-toluenesulfonic acid, heating and stirring for reaction, and carrying out reduced pressure distillation to obtain modified soybean lecithin; s2, dispersing the SiO2 particles in absolute ethyl alcohol, adding KH-550, and performing ultrasonic treatment, centrifugation and drying to obtain pretreated SiO2 particles; and uniformly mixing the modified soybean lecithin and the pretreated SiO2 particles, adding the mixture into a supercritical fluid reactor, heating and pressurizing, ultrasonically dispersing, and drying to obtain the antistatic agent. The antistatic agent has the advantages of good dispersibility, strong stability and strong antistatic capability.

The invention discloses a high-activity graphene quantum dot and a preparation method thereof, and relates to the technical field of oilfield chemistry, and the preparation method comprises the following steps: uniformly ground carbon source and nitrogen source are mixed, heated, fully reacted and cooled, uniformly dispersed in deionized water by ultrasonic waves, and then subjected to suction filtration, dialysis and freeze drying to obtain the nitrogen-containing graphene quantum dot. The preparation method comprises the following steps: dispersing nitrogen-containing graphene quantum dots, fatty alcohol-polyoxyethylene ether carboxylic acid and a catalyst in absolute ethyl alcohol, carrying out ultrasonic oscillation for 30 minutes, carrying out reflux reaction, and carrying out reduced-pressure rotary evaporation, thereby obtaining the nitrogen-containing graphene quantum dots. The prepared high-activity graphene quantum dots are small in particle size, high in activity and capable of entering small pores to peel crude oil, so that the recovery efficiency can be remarkably improved, the point injection allocation process is simple, the high-activity graphene quantum dots can be rapidly dispersed into injected water, an additional injection allocation device is not needed, and the construction cost is low.

The invention relates to the technical field of transposed conductors, in particular to a preparation process of an ultrathin paint film transposed conductor, which comprises the following steps of: coating acetal paint on a base material, then coating intermediate modified paint, finally coating outer paint, and processing a treated copper wire into the transposed conductor. According to the ultrathin paint film transposed conductor, a copper wire is cleaned through absolute ethyl alcohol, then acetal paint, intermediate modified paint and outer paint are coated in a matched mode, finally, the transposed conductor is manufactured through the transposed conductor device and the wrapping device, the electrical performance, the heat conduction performance, the salt mist resistance and the high temperature resistance of the product are excellent, and the service life of the product is prolonged. Meanwhile, the impact resistance and the waterproof effect of the product are excellent, and the comprehensive coordination of the product is improved in a balanced manner.

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 preparation method for laser cladding of an iron-based alloy wear-resistant coating on the surface of an automobile brake disc, which comprises the following steps: (1) before cladding, putting iron-based alloy powder into a drying oven at 60 DEG C and drying for 120 minutes; (2) pretreating a matrix sample, removing rust and an oxide layer on the surface, cleaning the surface with absolute ethyl alcohol, and wiping to keep the surface dry; and (3) setting cladding process parameters, wherein the cladding process parameters comprise laser power, powder feeding amount, scanning speed, lap joint rate and scanning linear speed. And (4) a cladding experiment is started, and a cladding scanning path and mode are set, wherein the cladding scanning path and mode comprise a single-channel coating, a multi-channel lap joint coating and a whole-surface brake disc. And (5) after cladding is finished, waiting for natural cooling of the brake disc. The iron-based powder is used for preparing the coating on the surface of the automobile brake disc, technological parameters are optimized, the cladding procedure is simplified, the powder cost is low, the prepared coating is good in performance, and a single-layer coating scheme is provided for strengthening and repairing the brake disc.

The invention discloses a closed-cell heat-conducting flame-retardant foamed silica gel material and a preparation method thereof in the field of organic silicon functional materials. The closed-cell heat-conducting flame-retardant foamed silica gel material is prepared from the following raw materials: basic silica gel, silane modified boron nitride, titanate modified aluminum hydroxide, a foaming agent, a cross-linking agent, a catalyst, an inhibitor and absolute ethyl alcohol. The raw materials are mixed according to a certain mass ratio. Wherein the silane modified boron nitride is prepared by heating, refluxing and reacting boron nitride powder and a silane coupling agent in an ethanol solvent and then drying; the titanate modified aluminum hydroxide is prepared by ultrasonically dispersing aluminum hydroxide powder and a titanate coupling agent in deionized water, adjusting the pH value, reacting and drying. The preparation method comprises the following steps: mixing the basic silica gel with the two modified fillers at a high speed, sequentially adding other raw materials, continuously mixing, transferring into a mold, pressurizing at a certain temperature to complete vulcanization foaming, taking out, washing with water, and drying in vacuum. According to the material, the interface bonding force is improved through the modified filler, and the material has the characteristics of high heat conductivity, high flame retardance and stable closed-cell structure.

The invention relates to the technical field of heat energy storage materials, and particularly provides a silicon dioxide aerogel composite phase change heat storage material and a preparation method thereof. The method comprises the following steps: mixing an organic silicon source, absolute ethyl alcohol and deionized water according to a specific ratio, fully stirring to obtain a mixed solution, and dropwise adding an acid catalyst into the mixed solution at room temperature for hydrolysis reaction to obtain a hydrolysate; sequentially adding a drying control agent and an alkali catalyst, and standing for gelation reaction to obtain gel; adding an organic solvent to carry out aging reaction, and then adopting the organic solvent to carry out replacement for multiple times to obtain alcogel; replacing the alcohol gel with an organic solvent for multiple times to obtain wet gel, soaking the wet gel in an excessive molten phase change material, and carrying out normal-pressure solvent replacement and drying at 40 DEG C to obtain the phase change material, the loading capacity of octadecane in the obtained CPCM is about 83%, the phase change enthalpy reaches up to 192J / g, the heat conductivity is as low as 0.0812 W / m.K, and no obvious leakage occurs after 200 times of circulation.

The invention discloses a preparation method of an electrode composite material, the electrode composite material and application of the electrode composite material, and the preparation method comprises the following steps: sequentially crushing and pickling a soft carbon raw material to obtain a soft carbon precursor; placing the soft carbon precursor, a hard carbon material and absolute ethyl alcohol in a sand mill for sanding treatment, and uniformly mixing to obtain a mixed dispersion liquid; carrying out drying treatment on the mixed dispersion liquid to obtain a composite carbon matrix precursor; placing the composite carbon matrix precursor in a rotary furnace, performing carbonization treatment in an inert gas environment, and performing grinding, crushing and sieving to obtain a carbonized compound; placing the carbonized compound in a rotary furnace, and activating under the condition of carbon dioxide gas and / or water vapor to obtain a composite carbon matrix containing a pore structure; and introducing gas containing a silicon source into the rotary furnace, depositing nano silicon in pores of the composite carbon matrix through chemical vapor deposition, and crushing to obtain the electrode composite material.

The invention provides an aluminum oxide aerogel composite material as well as a preparation method and application thereof, and belongs to the technical field of aluminum oxide aerogel preparation. The preparation method provided by the invention comprises the following steps: (1) preparing aluminum sol by taking coal gangue as an aluminum source; (2) mixing the aluminum sol obtained in the step (1) with aluminum silicate fibers, and performing gelation to obtain composite hydrogel; and (3) mixing the composite hydrogel obtained in the step (2) with ethanol, aging, mixing with a modifier, modifying, and carrying out graded normal-pressure drying to obtain the aluminum oxide aerogel composite material, the modifier in the step (3) is one or more of absolute ethyl alcohol, tetraethoxysilane and normal hexane. The alumina aerogel composite material prepared by the preparation method provided by the invention has the characteristics of low density, low heat conductivity coefficient and high strength, and is suitable for the high-temperature processing field of special materials and the aerospace field.

The invention relates to the field of battery materials, and discloses a preparation method of a porous hard carbon material and application of the porous hard carbon material in a sodium-ion battery, the preparation method of the material comprises the following steps: S1, preparing a sucrose solution by taking sucrose as a carbon source, carrying out hydrothermal reaction treatment on the sucrose solution, and then filtering and separating to obtain a hard carbon precursor; s2, dissolving zinc salt with distilled water to prepare a solution, adding the hard carbon precursor obtained in S1 into the solution, then adding absolute ethyl alcohol into the solution, mixing and stirring at normal temperature, finally heating to evaporate the solvent to dryness, and fully grinding to obtain a uniformly mixed material containing the zinc salt; and S3, putting the material obtained in the S2 into a furnace body, heating to 600 DEG C under a protective atmosphere, carrying out primary carbonization, then heating to 1300 DEG C, carrying out high-temperature carbonization, cooling, taking out, and uniformly grinding, so as to obtain the porous hard carbon material. The material provided by the invention has the characteristics of convenient preparation method, high first-week coulombic efficiency and high specific capacity.

The invention relates to the technical field of metal materials, in particular to a ceramic reinforced aluminum alloy composite material and a preparation method thereof. The aluminum alloy composite material comprises the following raw materials in parts by weight: 75-85 parts of an aluminum alloy matrix and 10-20 parts of a ceramic reinforced phase, a preparation method of the ceramic reinforced phase comprises the following steps: step 1, adding silicon carbide and a silane coupling agent into absolute ethyl alcohol, and drying after ultrasonic dispersion; 2, dissolving tetraethoxysilane in an ethanol-water mixed solvent, adjusting the pH value to 3-4, adding the silicon carbide treated in the step 1, stirring to form sol, drying, converting into gel, and calcining to form a coating layer; step 3, dispersing the silicon carbide treated in the step 2 into water, adding nickel nitrate, uniformly stirring, adding a reducing agent, stirring for reaction, and collecting precipitate particles; and 4, adding an interface modifier, and uniformly mixing. The ceramic reinforced aluminum alloy composite material has high strength, high wear resistance and good mechanical property and thermal stability.

The invention discloses a high-performance polyether-ether-ketone modified sealing material and a preparation method thereof, and relates to the technical field of sealing materials. The high-performance polyether-ether-ketone modified sealing material is prepared from the following raw materials in percentage by mass: 5 to 10 percent of polytetrafluoroethylene micro powder, 5 to 10 percent of graphene nanosheets, 10 to 15 percent of silicon carbide whiskers, 0.5 to 2 percent of silane coupling agent and the balance of polyether-ether-ketone, the preparation method of the high-performance polyether-ether-ketone modified sealing material comprises the following steps: mixing graphene nanosheets with a silane coupling agent, deionized water and absolute ethyl alcohol, carrying out ultrasonic dispersion for 2 hours, carrying out pretreatment to obtain a graphene nanosheet suspension, mixing the graphene nanosheet suspension with silicon carbide whiskers, polytetrafluoroethylene micro powder and polyether-ether-ketone, carrying out melt blending, and carrying out compression molding to obtain the high-performance polyether-ether-ketone modified sealing material. And cooling to obtain the high-performance polyether-ether-ketone modified sealing material.

The application discloses a kind of nano magnetic flocculants and its preparation method and application, belong to drinking water processing technical field, including the following steps: step S1, modified ferroferric oxide nanosphere is ultrasonically dispersed in ammonia alcohol solution, while stirring, slowly drop adding tetraethyl orthosilicate, continue stirring after drop, after centrifugal separation, wash, obtain silica coated ferroferric oxide nanoparticles;Step S2, phenylalanine modified chitosan is added into glacial acetic acid solution, after completely swelling and dissolving, add silica coated ferroferric oxide nanoparticles and ultrasonic treatment, under low pressure ultraviolet lamp, then with anhydrous ethanol wash purification, vacuum drying to constant weight, obtain nano magnetic flocculants;The method of the application is simple and easy to operate, the nano magnetic flocculants prepared can be quickly adsorbed to the surface of sulfonamide antibiotics, produce flocculation and can be magnetically separated, very suitable for trace sulfonamide antibiotics in drinking water source efficient removal.

The invention belongs to the technical field of glass for buildings, and discloses a thermochromic intelligent window based on a vanadium dioxide nanoparticle film concentration gradient structure and a preparation method thereof.The preparation method comprises the steps that firstly, two parts of W-VO2 nanoparticles with different masses and PVP are added into absolute ethyl alcohol to be subjected to ultrasonic oscillation, and the W-VO2 nanoparticles and PVP are stirred to be evenly distributed and then stand for use; the method comprises the following steps: sequentially coating the surface of a pretreated glass substrate with W-VO2amp with relatively high concentration from bottom to top; a PVP dispersion liquid, a PMMA dispersion liquid, and low-concentration W-VO2amp are added; a PVP dispersion liquid; therefore, a W-VO2 gradient structure with low concentration at the top layer and high concentration at the bottom layer is formed on the surface of the glass substrate. The visible light transmittance of the thermochromic intelligent window is greatly improved, meanwhile, the solar modulation capacity is improved, the antagonism between the two optical properties of the visible light transmittance and the solar modulation efficiency is weakened or even broken through, and thermochromic development of the intelligent window and the radiation refrigeration field is further promoted.

The invention relates to the technical field of rubber tree bark beetle prevention and control and green ecological prevention and control, in particular to a rubber tree bark beetle attractant and lure preparation and application thereof. Comprising the following components in parts by weight: 1 part of (S)-cis-verbenol, 1 part of isoamyl alcohol, 1 part of longifolene and 6500 parts of absolute ethyl alcohol. The attractant can attract bark beetles on rubber trees, has the advantages of being good in attraction effect, long in lasting period, environmentally friendly and the like and is suitable for long-term monitoring and efficient prevention and control of bark beetle populations on the rubber trees, and the attraction core is not affected by terrains and terrains when applied.

The invention discloses a rinsing process for deep cleaning of purified natural quartz, which comprises the following steps: putting acid-washed quartz sand into a cleaning medium tank containing a mixed cleaning solution of deionized water and absolute ethyl alcohol for cleaning, and applying ultrasonic waves in the cleaning process; the cleaned quartz sand is put into a cleaning medium tank containing a mixed cleaning solution composed of deionized water, hydrogen peroxide and hydrofluoric acid to be cleaned, and ultrasonic waves are applied in the cleaning process; and the cleaned quartz sand is put into a cleaning medium tank containing deionized water to be rinsed so as to remove acid pickling residues to achieve deep cleaning, and ultrasonic waves are applied in the cleaning process. According to the method, a three-step cleaning scheme is innovatively adopted, so that loose impurities on the surfaces of quartz sand particles and organic reagent residues of a flotation process are efficiently stripped; the three steps are clear in function and have a synergistic effect, and the cleaning effect is far better than that of traditional single washing.

The invention discloses a preparation method of a heat-insulating ionic adhesive film and safety glass thereof, and belongs to the technical field of glass preparation. The preparation method comprises the following steps: S1, stirring and mixing Cu (NO3) 2.3 H2O and ionic liquid to obtain a blue colloidal solution; s2, reacting the blue colloidal solution in a reaction kettle, collecting a nano CuS product, and dispersing the nano CuS product in deionized water to obtain flaky nano CuS; s3, a silane coupling agent is dissolved in absolute ethyl alcohol and stirred, a mixed solution is obtained, nano CuS is added into the mixed solution, magnetic stirring is conducted, and then ultrasonic treatment is conducted; s4, blending the solution subjected to ultrasonic treatment with SGP resin, and then taking out and drying to obtain a blend; and S5, extruding the blend into a sheet by using a parallel twin-screw extruder, and pressing and shaping the extruded sheet by using a conveyor belt tractor to obtain the adhesive film. The oxygen vacancy modified CuS improves the photocatalysis, antibacterial or ultraviolet shielding performance and is suitable for building or automobile glass, and the SGP resin matrix has high transparency, weather resistance and flexibility and is suitable for laminated safety glass.

The application belongs to the field of functional materials and surface engineering, and particularly relates to an ant nest-like photo-thermal super-hydrophobic sponge as well as a preparation method and application thereof. The preparation method comprises the following steps: repeatedly soaking melamine sponge in anhydrous ethanol solution and drying; adding dopamine hydrochloride into a tris buffer solution to obtain a mixed solution by stirring, and then immersing the surface of the dried melamine sponge into the mixed solution and drying to obtain PDA@MS; adding PDMS and a curing agent into a cyclohexane solution to stir, then adding MWCNTs, MnO2 and CuO to stir to form a mixed solution, and then spraying the mixed solution on the surface of the PDA@MS and drying to obtain PMOS; and immersing the surface of the PMOS into a mixed solution of ethanol and deionized water containing PFOTES, and then taking out and drying. Through fine cross-scale multi-layer gap structure design, high mechanical durability, excellent light absorption capacity, efficient anti-icing, de-icing, interface evaporation and fresh water production in extreme environments are realized.

The invention discloses a smokeless electronic cigarette liquid capable of inhibiting generation of visible aerosol and a preparation method thereof, the smokeless electronic cigarette liquid is composed of a matrix component and an essence component, the matrix component comprises food-grade propylene glycol, absolute ethyl alcohol and purified water, and the essence component comprises essence, nicotine salt, a cooling agent, food-grade propylene glycol and a sweetening agent. According to the smokeless electronic cigarette liquid, by canceling traditional atomized matrix glycerol, the electronic cigarette liquid hardly generates aerosol in the heating and using process, namely hardly generates obvious smoke which is lower than an alarm threshold value of a smoke alarm, does not trigger the smoke alarm, avoids environmental residues, and is safe and reliable. According to the present invention, the use requirements of users in public places or no-smoking areas can be met, the trouble to surrounding people is effectively avoided, the harm to the human respiratory system is reduced, the environmental protection and health are provided, the transmission efficiency and the taste of nicotine are retained, and the preparation method has characteristics of simple processing, simple process requirement and low cost, and is suitable for large-scale production.