43results about How to "Suitable for large-scale process production" patented technology

The invention relates to a water-base metal antirusting agent and a preparation method thereof. The antirusting agent comprises the components by weight percentage of 1-3% of dicarboxylic acid, 3-4% of triethanolamine, 0.5-1% of monoethanolamine, 5-10% of synthesized borate, 3-10% of polyethylene glycol, 1-3% of antiseptic, 0.1-1% of benzotriazole and the balance of water. The preparation method mainly comprises the following steps of: firstly preparing an antirusting agent body and subsequently adding and mixing the antiseptic, the polyethylene glycol, benzotriazole and the like, thus preparing the antirusting agent. In the invention, the action mechanism is simple and scientific, the cleaning and antirusting effect achieves the best by the cooperative function of all components; the antirusting agent contains the antiseptic that can effectively prevent the antirusting agent from cankering during the memory and working process, the polyethylene glycol can help forming film so that theantirusting agent has good water-repellent function and the antirusting capability can be effectively improved.

The present invention discloses one kind of ceramic glaze material with metal texture. The ceramic glaze material includes one kind of base metal facing glaze material of metal oxide mixture and one kind of covering printed glaze material. The ceramic product with the ceramic glaze has metal luster and metal texture as well as improved physical and chemical performances, and raised mechanical strength, abrasive strength and other mechanical performance, and is beautiful and durable. In addition, the ceramic glaze material has relatively simple preparation process and is suitable for industrial production. The present invention also discloses the preparation process of the ceramic glaze material and the ceramic product.

The invention relates to an alloy material, in particular to an alloy material of long carbon chain nylon and polymethylmethacrylate, which comprises the following components by weight percent: 70-90% of polymethylmethacrylate, 5-25% of long carbon chain nylon, 1-10% of compatibilizer, 0.1-1% of lubricant, 0.1-0.5% of antioxidant and 0.1-0.5% of nucleating agent. The alloy material provided by the invention has the advantages of high transparency, good toughness, good liquidity, high elongation at break and good abrasion resistance, and further extends the application fields of polymethylmethacrylate and long carbon chain nylon, thereby having a wide application prospect.

The invention relates to a normal temperature spraying detergent for aluminum alloy and a preparation method thereof. The detergent comprises the following raw materials in percentage by weight: 1 to 5 percent of ethylene diamine tetraacetic acid, 0.5 to 1.5 percent of sodium metasilicate pentahydrate, 5 to 8 percent of sodium gluconate, 5 to 10 percent of heterogeneous alcohol ether, 2 to 7 percent of solubilizing agent, 3 to 8 percent of surfactant, and the balance of water. The detergent can be used at normal temperature, and does not need heating so as to save the energy; the detergent does not corrode the treated aluminum alloy parts, does not leave white spots on the surfaces of the parts, and can increase the brightness of the parts; and the detergent has long service life and low using concentration, is safe and environment-friendly, saves the working time, and improves the working efficiency.

The invention relates to a water-based cleaning agent for soldering flux and a preparation method thereof. The water-based cleaning agent comprises the following components in percentage by weight: 30-40% of diethylene glycol butyl ether, 10-20% of diethylene glycol ethyl ether, 5-10% of monoethanolamine, 10-15% of triethanolamine, 1-3% of corrosion inhibitor, 5-10% of AEO (fatty alcohol polyoxyethylene ether)-9, 5-10% of Ninol and the balance of water. The main steps of the preparation method are as follows: firstly adding four solvents, namely the diethylene glycol butyl ether, the diethylene glycol ethyl ether, the monoethanolamine and the triethanolamine into water, and then adding the AEO-9, the Ninol and the corrosion inhibitor for mixing. The action mechanism of the preparation method disclosed by the invention is scientific and scientific, the cleaning effect can achieve the optimal state through synergy of all the components, and the corrosion inhibitor is contained in the cleaning agent so as to play a role in metal protection during the cleaning process.

The invention discloses a hydrophilic material-doped blended membrane nanoscale zero-valent iron-loading composite material as well as a preparation method and application thereof. The method comprises the steps of (1) synthesizing a hydrophilic material; (2) doping the hydrophilic material during a blended membrane synthesis process; (3) soaking the hydrophilic material-doped blended membrane into a bioinspired polymer solution, and functionalizing; (4) soaking the functionalized hydrophilic material-doped blended membrane into a soluble ferric salt solution, and loading an iron ion onto a boehmite-doped blended membrane; (5) soaking the iron-loading blended membrane into a borohydride solution, thus forming the hydrophilic material-doped blended membrane nanoscale zero-valent iron-loadedcomposite material through a high reduction function. The method is low in cost, and the operation process is simple and convenient; and the prepared nanoscale zero-valent iron particles are good indispersing performance, high in reaction activity and easy to recycle, has a good removal capability on heavy metals, organic dyestuffs and antibiotic wastewater, cannot cause secondary pollution, andhas a wide application prospect in the field of environment pollution remediation.

The invention relates to a water-based industrial detergent capable of self-defoaming at normal temperature and a preparation method thereof. The detergent comprises the following components in percentage by weight: 2-15% of ethylene oxide epoxypropane copolymerized polyoxyethylene, 0.5-5% of triethanolamine, 0.5-4% of sodium metasilicate anhydride, 0.1-2% of fatty alcohol-polyxyethylene ether, 0.1-5% of advanced fatty alcohol (C8-15), 1-5% of sodium gluconate, 0.5-5% of ethylene diamine tetraacetic acid and the balance of water. The preparation method mainly comprises the following steps: dissolving the sodium metasilicate anhydride, the sodium gluconate and the ethylene diamine tetraacetic acid in the water; and then adding the ethylene oxide epoxypropane copolymerized polyoxyethylene, the triethanolamine, the fatty alcohol-polyxyethylene ether, the advanced fatty alcohol (C8-15) and the like in sequence, and mixing to finally obtain the industrial detergent. In the invention, based on the combined action of lipophilic group epoxypropane in the ethylene oxide epoxypropane copolymerized polyoxyethylene and lipophilic group in the system as well as industrial oil stain, the intensity of foam generated in the process of cleaning is reduced so as to realize the self-defoaming effect; through the synergistic effect of various components, optimal cleaning and antirust effects are achieved; simultaneously, through the synergistic effect of various surfactants, the defect that inorganic salts always form white spots on the surface of a workpiece is obviously improved.

The invention discloses a micelle modified nanometer zero-valent iron particle and a preparation method and application thereof and belongs to the technical field of preparation and modification of nanometer materials. The modified nanometer zero-valent iron particle comprises nanometer zero-valent iron and environment-friendly micelle poloxamer (comprising poloxamer F68, poloxamer F108 and poloxamer F127; and the poloxamer micelle wraps the surface of the nanometer zero-valent iron. According to the method, in a poloxamer aqueous solution, a solution of a strong reducing agent KBH4, a NaBH4 solution or a green tea solution is utilized to reduce Fe2+ so that Fe0 can be obtained. According to the micelle modified nanometer zero-valent iron particle and the preparation method and the application of the micelle modified nanometer zero-valent iron particle, the nanometer zero-valent iron is modified through the poloxamer, the micelle is formed through self-assembly of the poloxamer in the aqueous solution, stabilization of the nanometer materials is achieved, the prepared nanometer particle is good in dispersing performance and high in reactivity, and the defects that the nanometer particle is prone to clustering in water and prone to oxidation in air are overcome. The pollutant removing capacity of the micelle modified nanometer zero-valent iron particle is far higher than that of a non-modified nanometer zero-valent iron particle, the micelle modified nanometer zero-valent iron particle is friendly to the environment, secondary pollution cannot be generated, equipment needed for preparation is simple, the process is simple and convenient, and the micelle modified nanometer zero-valent iron particle can be widely used for treatment of environmental pollution and the environment restoration field.

The invention relates to an environment-friendly hydraulic support antifreeze fluid and a preparation method thereof. The fluid is composed of the following components in percentage by weight: 0.1 to 0.3% of diacid, 0.5 to 1% of triethanolamine, 0.05 to 0.2% of ethanolamine, 0.1 to 0.3% of benzotriazol, 50 to 54% of glycol, 0.2 to 0.5% of polyamide type emulsion antirust agent, 0.1 to 0.4% of polyoxyethylene nonyl phenyl ether, 0.8 to 1.5% of ammonium borate type antirust agent, 0.8 to 1.5% of sodium benzoate, and the balance being water. The action mechanism of the antifreeze fluid is simple and scientific. Through the synergetic effect between each component, optimum antirust, lubricating and antifreeze effects are abtained. The ammonium borate type antirust agent and the sodium benzoate both have an antiseptic function, and thus can effectively prevent the hydraulic support from corrosion during the storage or work process. The ratio of glycol to water can be adjusted so as to obtain various antifreeze liquids applied in different low temperatures.

The invention relates to a colourless tea-flavored white wine and a brewing process thereof. The brewing process comprises primary pure grain solid state fermentation, primary tea leaf mixing, primary distillation and wine roasting, primary ageing, filtering and blending.

The invention discloses a high-flame-retardant low-gloss dynamically vulcanized thermoplastic elastomer material and a continuous preparation method thereof. The material is prepared from an ethylene-butylene elastomer, polypropylene, a cross-linking agent, lipophilic silicon dioxide, polyethylene wax, an assistant cross-linking agent, a halogen-containing flame retardant, a flame retardant aid, an anti-dripping agent, a lubricant and an antioxidant. According to the thermoplastic elastomer material, the impact resistance can be improved in the presence of the flame retardant, the flame retardant property is excellent, the V0 level can still be achieved under the condition that the thickness is 0.8 mm, the special lipophilic silicon dioxide and polyethylene wax are used for reducing the glossiness of the material, and the glossiness can be remarkably reduced. The production process of the dynamically vulcanized thermoplastic elastomer is low in energy consumption, greatly reduces the production cost, and is very suitable for large-scale process production.

The invention relates to the technical field of cleaning agents, and particularly relates to a water-based UV cleaning agent for a three-proofing coating and a preparation method of the cleaning agent. The water-based UV cleaning agent for the three-proofing coating comprises the following raw materials in parts by weight: 10-20 parts of fatty alcohol polyoxyethylene ether, 3-7 parts of fatty alcohol alkoxy ether, 3-7 parts of D-limonene and 50-100 parts of deionized water. The water-based UV cleaning agent for the three-proofing coating is a water-based cleaning agent, does not contain chloroform and dichloromethane solvents which are harmful to human bodies, and does not cause damage to human health; the use method is convenient, safe, environment-friendly, nontoxic and economical (usingconcentration of 10-20%); the use method is simple; and the cleaning agent can be used by soaking or ultrasonic cleaning and can obviously improve the cleaning efficiency of parts. The water-based UVcleaning agent for the three-proofing coating has strong cleaning effect on the three-proofing coating, can be used to remove the three-proofing coating on workpiece, and has good cleaning effect.

The invention discloses a preparation method of a maca extract. The preparation method comprises the following steps of: cleaning and draining off maca and grinding the maca into powder; adding a methanol solution, water and concentrated hydrochloric acid and carrying out ultrasonic treatment to obtain a crude extract solution; concentrating the crude extract solution in the step (2) until no alcohol taste exits, thereby obtaining a concentrated crude extract; adsorbing the concentrated crude extract in the step (3) with macroporous resin; eluting the macroporous resin according to the order of one column volume of water, three column volumes of 20% ethanol, four column volumes of 50% ethanol, three column volumes of 75% ethanol and one column volume of 95% ethanol, and collecting an eluent; and carrying out ultralow-temperature freeze drying treatment on the eluent which is obtained by the third column volume of 20% ethanol and three column volumes of 50% ethanol, thereby obtaining the maca extract. The maca extract prepared by the method is obvious in cell ATP concentration increase effect and high in effective ingredient purity; the method is simple to operate, low in cost and suitable for massive production.

The invention discloses a method for extracting ceramide from pineapples and application, and relates to the technical field of biological active substance preparation and application. The method comprises the steps that pineapple leaves and pineapple peel of immature pineapples are selected, the process routes for pineapple picking and preprocessing, freezing, drying, smashing, extracting, concentrating, extracting, separating, column chromatography isolation, gradient elution and re-crystallization are designed, the process design is reasonable, the toxicity of adopted solvents is small, noharsh condition is adopted, a high-purity N-fatty acyl-sphingol substance can be obtained, on the basis of NMR, MS and HPLC detection, the detection result displays that the N-fatty acyl-sphingol substance is 1-O-beta-D-glucose-N-docosanedioic acyl-hexadecanoic-4,10(E,E)-diene psychosine, the purity reaches 98.7%, the yield is increased to 0.13% from 0.0004%, and the method is suitable for large-scale technological production.

The invention relates to the technical field of cleaning agents, in particular to a water-based type soldering flux cleaning agent and a preparation method thereof. The water-based type soldering fluxcleaning agent is prepared from the following raw materials in parts by weight: 20 to 40 parts of fatty amine, 20 to 40 parts of glycol ether, 5 to 15 parts of non-ionic surface active agent, and 10to 30 parts of deionized water. The water-based type soldering flux cleaning agent provided by the invention is a water-based type cleaning agent, does not contain a fluoro-carbon solvent and a halogenated hydrocarbon solvent harmful to a human body so as not to hurt human health, is convenient to use, safe, environmentally-friendly, non-toxic and economical, and simple in use method, can be usedfor soaking or ultrasonically cleaning, and is capable of remarkably improving the cleaning work efficiency of parts. The water-based type soldering flux cleaning agent provided by the invention has ahigher cleaning effect on a soldering flux, and can be used for cleaning the soldering flux and welding slags on workpieces; electronic parts treated through the cleaning agent are clean in surface,and can be directly assembled or packaged after being subjected to water rinsing and air drying.

The invention relates to a new preparation technology for preparing adenosine, cordycepin and N6-(2-hydroxyethyl)adenosine chemical reference substances simultaneously which are three chemical reference substances. The preparation technology is that the two-step efficient purification of Cordyceps militaris extract is performed to obtain the three chemical reference substances of which purities are more than 98%, wherein the two-step efficient purification contains resin column separation and high performance liquid chromatography. The preparation technology has simple process steps and high purity and is easy to perform large-scale production.

The invention relates to the technical field of high-molecular materials, in particular to a flame-retardant high-molecular material and a preparation method thereof. The preparation method includes:sequentially adding polyvinyl chloride, nano calcium silicate hydrate, calcium sulfate, pyridine-styrene-butadiene latex, polyvinylidene chloride, antimonous oxide, alumina hydroate, zinc borate, magnesium hydroxide, polybenzimidazole fiber, DOPO derivative flame retardant, modified inorganic filler, compatilizer, toughener, plasticizer and defoamer into a multidirectional motion mixing stirrer, mixing and stirring for 15-20min, and stirring while hot melting for 0.8-1h; 2), subjecting a high-molecular material after stirring to double-screw extrusion, wherein length-diameter ratio of a double-screw extruder is 50:1, extrusion temperature at the first stage is 60-80 DEG C, the extrusion temperature at the second stage is 100-120 DEG C, and the extrusion temperature at the third stage is 140-160 DEG C; 3), pelletizing the high-molecular material after double-screw extrusion to obtain the flame-retardant high-molecular material. The flame-retardant high-molecular material is simple in preparation process, low in cost and suitable for large-scale industrial production.

The invention provides a separation purification method for rhTRAIL thalline, and the separation purification method comprises a crude purification technology and a fine purification technology. The crude purification technology comprises: performing amplified culture and fermentation on rhTRAIL thalline obtained by a recombinant DNA technology, collecting thalline, performing high-pressure homogenate, fragmentation and microfiltration. The fine purification technology comprises: performing ion chromatography, hydrophobic chromatography, gel filtering chromatography and concentration on the crudely pure sample obtained in the crude purification technology to obtain a sample accord with quality requirement. The separation purification method has the advantages of being short in operation period, high in recovery rate and relatively low in production cost, and is applicable to large-scale industrial production.

The invention relates to the technical field of synthesis of battery positive electrode active materials, in particular to a method for preparing a flaky single-particle ternary positive electrode material from low-temperature eutectic molten salt. The method comprises the following steps: uniformly mixing a precursor with lithium-containing low-temperature eutectic molten salt, and realizing high-temperature liquid-phase sintering in an oxygen atmosphere; crushing and screening the sintered material, and conducting washing with a solvent to remove redundant molten salt, thereby implementing material purification; and drying, crushing and sieving the washed material to obtain the flaky single-particle ternary positive electrode material with excellent crystallinity and a dominant crystal face. The ternary positive electrode material prepared by the method has a single-particle morphology with relatively good dispersity, and the prepared material is high in purity, moderate in particle size and excellent in electrochemical performance; and the whole preparation process is short in time consumption, simple in procedure and easy for industrial control.

The invention provides a method for extracting and preparing solanesol from potato leaf. The method comprises the following steps: leaching the medicinal material powder with ethanol at 80 DEG C under reflux, concentrating the extracting solution, and carrying out two-step high-efficiency purification by macroporous resin column separation and preparative high performance liquid chromatography to obtain the solanesol with the purity of greater than 98%. The method has the advantages of simple technical steps and high purity, and can easily implement scale-up production.

The invention relates to a neutral silicone oil and silicone grease cleaning agent, which comprises the following components and parts by weight: 0.5-2.0 parts of a builder; 0.5-2.0 parts of a complexing agent; 0.2-0.8 parts of a penetrating agent; and a corrosion inhibitor for copper materials 0.2-1.0 parts; aluminum corrosion inhibitor 0.2-2.0 parts; steel rust inhibitor 0.2-6.0 parts; solubilizer 0.2-2.0 parts; nonionic surfactant 1.0-20.0 parts; mixed surfactant 0.0-20.0 parts ; The rest add water to 100 parts. The action mechanism of this cleaning agent is simple and scientific. Through the synergistic effect of each cleaning component, it can penetrate, emulsify and peel off silicone oil and grease dirt. The metal surface has a protective effect, so that the cleaning and protection have the best effect. This agent is safe, environmentally friendly, non-toxic, does not contain phosphorus, nonylphenol, heavy metals, VOC substances, etc., and has a wide range of raw materials, easy access, and low cost. Suitable for mass production.

The invention discloses a micelle-modified nanometer zero-valent iron particle, a preparation method and an application thereof, and belongs to the technical field of preparation and modification of nanometer materials. The modified nano-zero-valent iron particles of the present invention include nano-zero-valent iron and environment-friendly micellar poloxamers (including poloxamer F68, poloxamer F108 and poloxamer F127), poloxamer The micelles are coated on the surface of the nanometer zero-valent iron. The method of the present invention is to use a strong reducing agent KBH4 solution, NaBH4 solution or green tea solution to reduce Fe2+ in a poloxamer aqueous solution to obtain Fe0. The invention adopts poloxamer to modify nanometer zero-valent iron, forms micelles through the self-assembly of poloxamer in aqueous solution, realizes the stabilization of nanomaterials, and the prepared nanoparticles have good dispersion performance and high reactivity High, overcomes its shortcomings of easy aggregation in water and easy oxidation in air. The ability to remove pollutants is much higher than that of unmodified nano-zero-valent iron particles, and it is environmentally friendly without secondary pollution. The equipment required for preparation is simple and the process is simple, and it can be widely used in the treatment of environmental pollution and environmental pollution. Repair field.

The invention discloses edible energy chopsticks. The preparation method comprises the steps that cudrania tricuspidata leaf extracts are prepared, ingredients are mixed uniformly, pulped and poured in a mold, and the ingredients are subjected to baking molding through an oven; the invention further discloses application of the cudrania tricuspidata leaf extracts to the preparation of anti-depression medicines and nervous excitation promotion medicines. The edible energy chopsticks have the advantages that the energy bar effect is achieved, the chopsticks are environmentally friendly, the effect is significant, the idea is novel, the chopsticks can be used for multiple purposes, the cost is low, no side effects are involved, and the energy chopsticks are applicable to large-scale popularization and production.

The invention relates to a forming method of a composite material winding shaft containing an injection layer, belongs to the field of mold forming and aims to solve the problem that an existing composite material winding shaft with a fluid material interlayer cannot be formed. A mold body is mounted on a horizontal winding machine, the outer surface of the mold body is sanded with 200-mesh sand paper, then the sanded surface of the mold body is cleaned with cotton yarns, and the mold body is coated with a mold releasing agent; and the surface, coated with the mold releasing agent in the firststep, of the mold body is coated with body colloid, carbon fibers are mounted on a winding tensioner of the horizontal winding machine, first-layer annular winding of the carbon fibers is performed on the outer surface of the mold body, the initial tension of the first-layer annular-wound carbon fibers is set to be 30+ / -3N / cluster, the winding angle is set to be 85-90 degrees, winding is repeatedfor two to four times, the winding length of the first annular-wound carbon fiber layer is 150-500 mm, and the total wound layer thickness of the first annular-wound carbon fiber layer is 0.5-2 mm. By means of the forming method of the composite material winding shaft containing the injection layer, integrated forming of the fluid material interlayer and the first and second carbon fiber composite layer is achieved.

The invention provides a separation purification method for rhTRAIL thalline, and the separation purification method comprises a crude purification technology and a fine purification technology. The crude purification technology comprises: performing amplified culture and fermentation on rhTRAIL thalline obtained by a recombinant DNA technology, collecting thalline, performing high-pressure homogenate, fragmentation and microfiltration. The fine purification technology comprises: performing ion chromatography, hydrophobic chromatography, gel filtering chromatography and concentration on the crudely pure sample obtained in the crude purification technology to obtain a sample accord with quality requirement. The separation purification method has the advantages of being short in operation period, high in recovery rate and relatively low in production cost, and is applicable to large-scale industrial production.

The invention relates to a normal temperature spraying detergent for aluminum alloy and a preparation method thereof. The detergent comprises the following raw materials in percentage by weight: 1 to 5 percent of ethylene diamine tetraacetic acid, 0.5 to 1.5 percent of sodium metasilicate pentahydrate, 5 to 8 percent of sodium gluconate, 5 to 10 percent of heterogeneous alcohol ether, 2 to 7 percent of solubilizing agent, 3 to 8 percent of surfactant, and the balance of water. The detergent can be used at normal temperature, and does not need heating so as to save the energy; the detergent does not corrode the treated aluminum alloy parts, does not leave white spots on the surfaces of the parts, and can increase the brightness of the parts; and the detergent has long service life and low using concentration, is safe and environment-friendly, saves the working time, and improves the working efficiency.

The invention discloses a hydrophilic material-doped blend film-loaded nano-zero-valent iron composite material and its preparation method and application. The method includes: (1) synthesizing the hydrophilic material; (2) during the synthesis process of the blend film, Doping with hydrophilic materials; (3) Soaking the blended membranes doped with hydrophilic materials into a biostimulated polymer solution for functionalization; (4) Immersing the functionalized blended membranes doped with hydrophilic materials in a soluble iron salt solution , so that iron ions are loaded onto the boehmite-doped blend membrane; (5) The blend membrane loaded with iron ions is immersed in borohydride salt solution, and the hydrophilic material doped blend membrane is formed by strong reduction. Nano-zero-valent iron composite material; the method is low in cost and easy to operate, and the prepared nano-zero-valent iron particles have good dispersion performance, high reactivity, easy recovery, good removal ability for heavy metals, organic dyes and antibiotic wastewater, and will not It produces secondary pollution and has broad application prospects in the field of environmental pollution restoration.

The invention discloses a novel spherical nanometer aramid fiber material. The novel spherical nanometer aramid fiber material is solid round balls with the diameter of 50-200nm, wherein the surfaces of the solid round balls are smooth, the solid round balls are narrow in particle size distribution, and the weight percentage of the solid round balls is 1.6%-2.0%. A preparation method of the novel spherical nanometer aramid fiber material comprises the following steps: adding poly-p-phenylene terephthamide short fibers and potassium hydroxide according to a weight ratio being 2:3-9:5 to anhydrous dimethyl sulfoxide under the protection of nitrogen, and mechanically stirring at room temperature for 3-5 days till thoroughly reacting, thus obtaining a crimson aramid fiber nanometer solution. The novel spherical nanometer aramid fiber material prepared by the method is expected to serve as a novel nanometer addition material for preparing high-performance composite materials. The preparation method is low in cost, high in treatment efficiency, simple in process and suitable for large-scale technological production.

The invention discloses an oxygen vacancy-enriched bismuth molybdate photocatalytic material, which relates to the technical field of photocatalysis, has a chemical formula of Bi4MoO9, and is prepared by the following steps: (1) dissolving bismuth nitrate in a proper amount of deionized water, and adding a dispersing agent while stirring to react for 1 hour; dissolving soluble vanadium salt in a proper amount of water, and stirring for 30 minutes; mixing and stirring the solutions to form a precursor solution A; (2) respectively dissolving bismuth nitrate and Na2MoO4. 2H2O in a proper amount of nitric acid and sodium hydroxide, and then adding citric acid into the bismuth nitrate solution; mixing the solutions to form a precursor solution B; (3) respectively adjusting the pH values of the solution A and the solution B to 7, standing, mixing, and transferring to a hydrothermal reaction kettle for reaction; and (4) cooling the reaction kettle, drying powder obtained by suction filtration, and roasting at high temperature to obtain a sample. The prepared photocatalytic material is very high in oxygen vacancy activity, simple in reaction condition and convenient to control, and has a very strong degradation effect on rhodamine 6B.

The invention discloses an antirust leakage detection agent, which comprises, in parts by weight, 0.5 to 1 part of dicarboxylic acid, 2 to 4 parts of triethanolamine, 0.2 to 0.8 parts of sodium benzoate, 0.2 to 0.8 parts of benzotriazole, 0.5 to 2 parts of alkyl polyglucoside, 0.3 to 1 part of iso-tridecanol polyoxyethylene ether, 6 to 10 parts of ethylene glycol, 0.3 to 0.8 parts of hydroxyethylcellulose and water complemented to 100 parts. The action mechanism of the leakage detection agent is simple and scientific, anti-rust and foam effects achieve the best under cooperative effects of componenets, the solution thus has the characteristics of suitable viscosity, rich foam, antirust and good cleaning effects, the agent does not contain sodium nitrite or phosphorus and is thus safe, environmental-friendly and non-toxic, the source of raw materials is wide, acquisition is easy, the cost is low, and mass production is facilitated.