214results about How to "Damage structure" patented technology

The invention provides an organic-inorganic hybrid perovskite quantum dot and a preparation method thereof. The quantum dot is prepared by taking siloxane with amino terminated as ligand and adopting a re-precipitation method aided by the ligand. The quantum dot comprises a core, and a general formula of the core is CH3NH3AX3 or (C6H5NH3)2AX4, wherein A is selected from transition metal element, and X is selected from halogen; a silicon dioxide layer is arranged on the surface of the organic-inorganic hybrid perovskite quantum dot. The siloxane with amino terminated is adopted as the ligand, so that size of the perovskite quantum dot can be controlled better, and luminous performance is stable. In addition, siloxane with amino terminated is used, and the re-precipitation method aided by the ligand is adopted, and the silicon dioxide layer is formed on the surfaces of perovskite nanoparticles, so that water oxygen stability of a perovskite nano material can be improved, and feasibility of the nano material in actual application is improved.

A preparation method of graphene oxide / silicon dioxide hybrid aerogel comprises the following steps: A, adding 0.05-0.1 mol of a precursor into 9-18 ml of distilled water and dropwise adding a hydrolyst with its concentration of 0.2-0.6 mol / L into the precursor aqueous solution, wherein molar ratio of the hydrolyst to the precursor is 1:20-1:100; stirring at 20-30 DEG C for 5-8 h; adjusting pH value to 6-7 and stirring for 5-45 min so as to obtain a dispersion containing silicon dioxide microspheres; B, adding water to dilute the silicon dioxide microsphere dispersion by 5-50 times, carrying out iso-volume mixing on the diluted silicon dioxide microsphere dispersion and a graphene oxide dispersion with its concentration being 0.6-2 mg / ml, stirring for 10-30 min, carrying out ultrasonic treatment for 10-30 min so as to obtain graphene oxide / silicon dioxide hybrid aerogel; and C, freezing the hybrid aerogel under liquid nitrogen for 5-10 min, freeze-drying and dewatering to obtain the graphene oxide / silicon dioxide hybrid aerogel. The method is environmentally friendly, and the technology is simple. The prepared hybrid aerogel has advantages of complete gel network structure, high porosity, good adsorptivity, high strength, low density and the like.

The present invention discloses method of coupling the hydrogen making reaction and desulfurizing reaction of gasifying petroleum coke. The present invention features that the mixture of petroleum coke and sodium carbonate or potassium carbonate is added into the reactor and gasified with the introduced water vapor to obtain synthesized gas with high hydrogen content, and of the synthesized gas, part is returned to the reactor through the water vapor inlet for hydrogenating and desulfurizing while the rest is further purified. After some time of gasification reaction, the rest solid product is exhausted for acid pickling, water washing and drying to obtain petroleum coke with low sulfur content.

The invention provides a method for synthesizing a solid polycarboxylic water reducing agent, comprising the following steps: using a monomer containing the nonsaturated group to react with an organic solvent, after the reaction, adding an alkaline substance for neutralization, and carrying out centrifugation to obtain a polycarboxylic acid water reducer, then drying the prepared polycarboxylic acid water reducer to obtain the solid polycarboxylic acid water reducing agent. By using a low temperature method to prepare the solid polycarboxylic acid water reducing agent , the crosslinking of the polycarboxylic acid water reducer due to high temperature spray drying is avoided, and the structure of the polycarboxylic acid water reducer is destroyed, thus the solid polycarboxylic acid water reducing agent with excellent performance is obtained.

The invention discloses clear sugar-free tartary buckwheat tea and a production method thereof. The clear sugar-free tartary buckwheat tea is characterized by being prepared through the following processes: removing impurities of tartary buckwheat with skin taken as raw material, boiling, roasting, digesting, centrifugally separating, carrying out enzymolysis, roughly filtering, deactivating enzyme, allocating, finely filtering, sterilizing, filling and sealing, carrying out inverted bottle sterilization and cooling, labeling and spraying code, and packing; the prepared tartary buckwheat tea has flavor of roasted tartary buckwheat, is fresh and tasty, and contains bioactive substances, namely flavonoids compounds. According to the method disclosed by the invention, industrial production on a large scale can be realized; the produced tartary buckwheat tea beverage is golden, clear and transparent, and effectively reserves bioactive substances, namely flavonoids compounds, in the tartary buckwheat; the tartary buckwheat tea can be stored, circulated and sold at normal temperature, and is relatively long in shelf life.

The invention provides an early warning and automatic control method for thermal runaway of lithium batteries. The method is characterized in that once the batteries in a battery box cause a fire due to development of thermal runaway development, an extinguishing device is automatically started immediately to release an extinguishing agent for extinguishing, and the extinguishing agent is released several times. According to the method, the defect that in an existing traditional extinguishing mode, multiple fires which are caused by fire resurgence and thermal runaway extension in lithium battery box fire controlling cannot be controlled is overcome, extinguishing can be conducted multiple times by releasing the extinguishing agent multiple times in the method, continuous cooling can be conducted, fire resurgence is effectively inhibited, thermal runaway extension is prevented, property losses are reduced, and malignant fire accidents are avoided to the greatest extent.

The invention discloses a method for producing methane in anaerobic digestion by pretreating sludge through steam explosion. The method comprises the following steps of: (1) steam explosion pretreatment: to be specific, adding dehydrated sludge with 55%-85% of moisture content to 0.5-1% SDS (Sodium Dodecyl Sulfate) according to mass ratio, then putting into a gas explosion machine, feeding saturated steam with moisture content of 1%-2%, maintaining needed temperature and pressure for 2-10min, and opening an emptying valve of the gas explosion machine for collecting materials; and (2) inoculated fermentation: to be specific, adding inoculums to the preprocessed material, wherein the inoculum quantiy accounts for 3%-50% of the mass of the material, sealing and fermenting after uniformly stirring. The method has the advantages of being capable of improving the biodegradability of sludge, being beneficial to degradation of microorganisms and increasing the utilization rate and gas output of sludge.

The invention relates to the technical field of extraction of active ingredients of edible mushrooms, and particularly relates to a method for simultaneously extracting polysaccharide and polyphenol from needle mushrooms. The method comprises the steps: preparing an extraction solution, extracting an alkaline solution by assistance of ultrasonic wave, performing enzymolysis on residue, extracting polyphenol from ethyl acetate and extracting polysaccharide after ultrafiltration and desalination. According to the method, operations such as auxiliary extraction, enzymolysis and membrane filtration are organically combined, and the polysaccharide and the polyphenol are simultaneously extracted, so that the production process is simplified, the safety and reliability are achieved, the yield is high, the physiological and pharmacological activities of the polysaccharide and the polyphenol in a needle mushroom sporocarp are well reserved, and a larger economic value is achieved.

The invention relates to a production process for comprehensively recovering valuable metal of copper, cobalt and iron alloy, belonging to the technical field of hydrometallurgy and comprising the steps of: preparing fine alloy powder with the mesh of -100 by vibrating, grinding, screening and grading the copper, cobalt and iron alloy; adding water to the fine alloy powder to stir; then adding a required theoretical quantity of fluorine ions F-; adding inorganic acid to react for 1.5 hours; slowly adding oxidant solution; stirring for 1.5 hours at the continuous temperature of larger than 85 DEG C after adding the oxidant solution; separating solid from the solution; adding a reducer whose use quantity is 1.05 times of the theoretical quantity to the obtained filtrate; stirring at normal temperature; reacting for 2 hours; obtaining cuprous chloride and pre-extraction solution after filtering; and finally carrying out P204 extraction and P507 extraction on the pre-extraction solution; and evaporating and crystallizing to obtain cobalt chloride. The production process has the advantages of environmental-friendly performance, simple operation, high efficiency, energy saving and suitability for industrial production.

The invention discloses a washable hot melt adhesive and application thereof. The hot melt adhesive is composed of the following raw materials by mass percentage: 30-80% of high-acid value resin; 0-40% of a plasticizer; 10-40% of a thermoplastic high polymer; and 0-1% of an antioxidant. The hot melt adhesive provided by the invention selects high-acid value resin as the tackifier, which contains carboxyl or hydroxyl and other hydrophilic functional groups, and can rapidly react with alkaline water so as to destroy the structure of the hot melt adhesive and lower the stripping force of the hot melt adhesive. The hot melt adhesive is partially dissolved and dispersed into small solid particles so as to completely break away from an adherend, thus being easily removed from the surfaces of PET, PP, PE, glass, ceramics, metals, leather, wood, paper products, plastic products, textile products or others. The washable hot melt adhesive provided by the invention has the bonding performance of conventional hot melt adhesives, and has the advantages of strong initial adhesion, environmental protection and safety, the preparation process is simple, the requirements for the process and equipment are low, the production efficiency is high, and the production cost is low.

The invention belongs to the field of combination of inorganic nano material preparation and mimic enzyme technology, and relates to a preparation method of an antibacterial material, particularly toa method for synthesizing a MoO3-X antibacterial material with dual mimic enzyme activity. The preparation process comprises the following steps: completely dissolving glucose powder in water, and adding an acid to adjust and dissolve so as to achieve an acidic pH value; sealing and heating to obtain a dark blue solution; and carrying out dialysis on the dark blue solution, and carrying out freezedrying to obtain the nano MoO3-X material. According to the invention, the reduction-state molybdenum oxide nano material prepared by the invention is applied to double mimic enzyme catalytically-synergetic drug-resistant bacterial resistance; according to the severe situation of drug-resistant bacteria and biological membrane treatment, the key technical problem of preparation of the nano MoO3-Xantibacterial agent with high yield, good biocompatibility, high near-infrared photothermal conversion efficiency and high dual-enzyme-imitating activity is solved through the environment-friendly, simple and efficient one-step hydrothermal method; and the application environment is friendly and the market prospect is wide.

A recycling method for a valuable element in a waste lithium ion battery electrode material comprises the following steps of roasting the waste lithium ion battery electrode material in air to obtainroasting slag, wherein the roasting temperature is 400-900 DEG C, and the heat preservation time is 30-300 minutes; and mixing the roasting slag and an acid solution with [H+] concentration being 0.5-9mol / L according to a mass ration being 1:(2-10), performing leaching under a leaching temperature being 30-95 DEG C and leaching time being 1-9 hours, and performing filtering to obtain a leaching liquid and leaching slag, wherein the leaching liquid is used for recycling nickel, cobalt, manganese, aluminum and lithium, and the leaching slag is used for recycling a carbon material. According to the recycling method, a positive electrode material and a negative electrode material of a battery are not needed to be separated, no extra leaching reduction agent is added, the recycling cost is reduced, the positive electrode material and the negative electrode material can be simultaneously recycled, and the recycling economic benefit of the lithium battery is improved.

The invention discloses a novel treatment process of antibiotic wastewater electron beams. The process is characterized by comprising the following steps of: irradiating electron beams, taking an antibiotic wastewater (500-1000mL) sample, adding 0.5%o-2%o of irradiating synergistic agent, mixing uniformly, conveying by using a tray, and irradiating by using a transmission system under the beam of an electron accelcrator; (2) carrying out coagulating sedimentation, adding 0.2%o - 0.4%o of flocculant into an irradiated water sample, quickly stirring for reacting, adding 0.4%o -0.7%o of coagulant aid, slowly stirring to form alumen ustum, standing for settling for 30 -60min, loading supernate by using a sterile bottle, conserving at temperature of 5oC -8oC, and conveying to the detection place to carry out detection analysis on the concentration of vancomycin and biological value; and (3) carrying out result analysis in which biological value is 0.5%, removal rate is 98.7%, vancomycin in mother solution is lower than a detection limit, and the biotoxicity of wastewater is obviously reduced.

The invention discloses a pesticide synergic assistant and a preparation method thereof, belonging to the field of pesticide assistants. The pesticide synergic assistant is composed of plant oil or esterified plant oil, ethylene glycol diacetate, an emulsifier and a penetrant in a weight ratio of (60-100): (20-70): (20-50): (1-4). The pesticide synergic assistant enhances the wetting, spreading and infiltrating capacities of a pesticide medicine liquid remarkably, improves the deposit rate of liquid medicine fogdrops on the surfaces of plants, improves the control effect of the pesticide remarkably, reduces the application times, alleviates the environmental burden, and remarkably improves the economical benefit and social benefit.

The invention discloses a barrel-mixed pesticide synergistic auxiliary and a method for preparing the same. The barrel-mixed pesticide synergistic auxiliary comprises, by weight, 0.1-70% of permeatingagents, 0.1-70% of lecithin, 0.1-50% of vitamin, 1-20% of emulsifiers, 0.2-10% of spreaders and the balance solvents. The method includes acquiring various components according to ratios; adding thelecithin into the solvents at the constant temperature of 40 DEG C under magnetic stirring conditions; sufficiently dissolving the lecithin and then adding the vitamin into the solvents; adding the permeating agents and the emulsifiers into the solvents; ultimately adding the spreaders into the solvents; carrying out sufficient stirring until solution is uniformly mixed. The barrel-mixed pesticidesynergistic auxiliary and the method have the advantages that excellent solubilization and permeation effects can be realized by the barrel-mixed pesticide synergistic auxiliary, the solubility of the barrel-mixed pesticide synergistic auxiliary for wax layers on the surfaces of targets can be improved, wax layer structures can be destroyed, and the permeation rate of pesticide liquid can be increased; the effective utilization rates of pesticides can be increased by the aid of the barrel-mixed pesticide synergistic auxiliary, the disease resistance and the insect pest resistance of crops canbe improved, the labor cost can be effectively saved, and the economic benefit can be increased.

The invention belongs to the technical field of environmental protection and new energy and relates to a novel method of improving quality of biological fuel produced by a biomass hydrothermal liquefaction method, in particular to a method of preparing bio-oil through raw material pretreatment and hydrothermal liquefaction. In order to solve the problems of lower bio-oil productivity and too complicated oil ingredients of the existing sludge hydrothermal liquefaction method, the novel method of preparing biological fuel through chemical pretreatment-hydrothermal liquefaction is developed according to a removal effect of two-step pretreatment of CTAB, AEO9 and subcritical water on bound water in sludge and a modification effect of a methanol cosolvent on the bio-oil.

The invention belongs to the field of alloy treatment and provides a method for leaching copper-cobalt alloy. The method comprises the following steps of: adding a proper amount of water and cosolvents to copper-cobalt alloy powder with the particle size of -100 meshes, adding an acid solution while stirring, reacting for 1.2 hours and then adding oxidizing agents, simultaneously replenishing water and controlling the reaction temperature below 100 DEG C until the whole reaction is finished after 3-4 hours, and then carrying out filter pressing and collecting filtered liquid, wherein the solid-to-liquid ratio in a reaction process is 1:5-1:10; the cosolvents are selected from fluorides and the consumption of the cosolvents is more than 0.8 time of a theoretical consumption level for forming SiF62-; the consumption of acid is 1.05-1.2 times of the theoretical acid-consumed level of copper and cobalt; and the consumption of oxidizing agents is 0.8-1.0 time of the copper-cobalt-ferrum oxidizing agents. The method has the advantages of safety, environmental protection, high reaction speed and no special requirement for production equipment because the whole process is carried out under a normal pressure, and the disposable leaching rate of the copper and the cobalt is not less than 95%.

The invention discloses a super-high temperature liquid medium thermal convection experimental loop which comprises a linear track type box body heating furnace and a loop pipeline, wherein the linear track type box body heating furnace comprises a furnace body, a heater, a linear guide rail and a base frame; the loop pipeline comprises a melting tank, an extraction opening, a loop main body, an online sampling system, an air cooling dual-layer sleeve and an emptying pipe. Due to an optimized design of the linear track type box body heating furnace, specific temperature zone distribution required by thermal convection of the experimental loop is ensured; meanwhile, due to material selection and a structure of the loop pipeline, the requirement of performing a long-term corrosion experiment of a reactor candidate material in an super-high temperature thermal convection medium can be met. The super-high temperature liquid medium thermal convection experimental loop has the characteristics that the loop pipeline is simply and conveniently replaced, online sampling and installing can be realized, temperature controlling precision is high and the like, can be used for developing compatibility experiment research of the material in a flow medium, and is especially suitable for screening and developing the reactor high-temperature-corrosion-resisting material.

The invention discloses a self-oxygen-supply hollow Prussian blue nanoparticle and a preparation method and application thereof. The self-oxygen-supply hollow Prussian blue nanoparticle is provided with a hollow Prussian blue nanoparticle body, hemoglobin and IR783 are loaded on a mesoporous shell layer and an internal hollow structure of the hollow Prussian blue nanoparticle body, the drug loading capacity of the hemoglobin is 61.5%-63.5%, and the drug loading capacity of the IR783 is 24.2%-27.5%. The self-oxygen-supply hollow Prussian blue nanoparticle loaded with hemoglobin and IR783 prepared by the invention can improve the condition of insufficient oxygen supply in photodynamic therapy; in addition, since the half-life period of active oxygen generated by the photodynamic therapy is very short and the active oxygen is effective only in a relatively short distance, loading of IR783 with a mitochondrial targeting function is conducted in the invention, the self-oxygen-supply hollow Prussian blue nanoparticle body loaded with hemoglobin and IR783 is conveyed to mitochondria, so a mitochondrial function is destroyed, photodynamic therapy effect is remarkably improved, and tumor cell apoptosis is promoted.

The invention provides a blend edible oil of peony seed oil and sesame oil, and a preparation method of the blend edible oil. The preparation method comprises the following steps: taking sesame seeds and shelled peony seeds respectively, conducting physical squeezing to prepare crude sesame oil and crude peony seed oil after the sesame seeds and shelled peony seeds are processed; respectively refining the two crude oils, so that refined peony seed oil and refined sesame oil are obtained; blending the refined peony seed oil and the refined sesame oil according to the weight ratio of 1: (0.5-2), so that the blend edible oil is obtained. According to the invention, after the sesame seeds and the shelled peony seeds are subjected to series of processing, the cell structure is destroyed, and the water content of the cells is reduced, so that grease in the cells can be separated from the cells in the process of squeezing, thereby improving the oil yield.

The invention discloses a method for synchronously extracting soy isoflavone and soy saponine from hydrolysate of an aqueous enzymatic method, belonging to the technique of medical health-care food production. The method comprises the following steps: (1) extruding and puffing crushed soybean to obtain a puffed product, mixing the puffed product with water and subsequently performing enzymolysis, and performing centrifugal separation to obtain free oil, emulsion, hydrolysate and residues; (2) adding acid into the hydrolysate to perform acid precipitation, subsequently performing centrifugal separation to obtain precipitate and water phase, performing microwave treatment on the water phase, and subsequently performing nanofiltration so as to obtain penetrate; (3) absorbing the penetrate by using macroreticular resin so as to obtain adsorbate; (4) desorbing the adsorbate, subsequently extracting by using acetone so as to obtain extract and unextracted substances, and respectively performing vacuum concentration and spraying drying on the extract and the unextracted substances so as to obtain soy isoflavone and soy saponine. The method is simple in needed equipment and safe to operate, two products of soy isoflavone and soy saponine can be synchronously obtained, and great economic benefits, environment benefits and social benefits are obtained.

The invention mainly relates to heavy metal cadmium passivation repair slow-release multifunctional urea fertilizer and a preparation method. The fertilizer comprises urea, a biochemical inhibitor, asoil heavy metal cadmium passivation material, water-soluble salt ions of medium-trace elements needed by plants and / or beneficial elements for plant growth, the heavy metal cadmium passivation material comprises one or multiple of charcoal modified by hydrochloric acid, ground phosphate rock modified by hydrochloric acid, sepiolite modified by hydrochloric acid and lime, the medium-trace elementsalt ions needed by the plants include one or multiple of calcium, magnesium, sulfur, iron, copper, zinc, manganese, boron, molybdenum and chlorine, and the beneficial elements for plant growth are silicon, selenium, urea and various beneficial elements for plant growth. The fertilizer can control cadmium in medium-mild cadmium contamination within a reasonable range, so that cadmium absorbed by crops can be reduced, and intake of cadmium content by people can be reduced; the fertilizer can promote crop root system growth, strengthen plants, remarkably enhance resistance to diseases, draught lodging and promote prematurity.

The invention discloses a multifunctional filtering material and a preparation method thereof. According to the method, a supporting layer non-woven fabric is subjected to antibacterial treatment by preparing an antibacterial finishing liquid containing silver nitrate, copper nitrate and carboxymethyl chitosan; and the supporting layer non-woven fabric subjected to antibacterial treatment, an active carbon layer, a filtering layer non-woven fabric and a protection layer non-woven fabric are stacked layer by layer and compounded to prepare a multifunctional filtering material capable of comprehensively filtering solid pollutants, gaseous pollutants and microbial pollutants. According to the invention, by adopting the technical scheme, the multifunctional filtering material can achieve efficient antibacterial and long-acting antibacterial effects; by adjusting the gram weight and the thickness of each layer of the material and the related process parameters of the multifunctional filtering material, the comprehensive optimal filtering effect is achieved; and the preparation method is simple, the product structure is reasonable, and the application range is wide.

The invention provides a production process of a multilayer circuit board. The production process comprises the following steps: S1 feeding, S2 inner layer, S3 primary pressing, S4 primary drilling, S5 primary electroplating, S6 resin hole plugging, S7 abrasive belt grinding, S8 primary film drying, S9 primary etching, S10 secondary pressing, S11 secondary drilling, S12 secondary electroplating, S13 secondary film drying, S14 secondary etching, S15 solder prevention, S16 gold formation and S17 scooping. The production process of the multilayer circuit board is suitable for manufacturing the multilayer circuit board with simple steps, high processing efficiency and high product quality.

The invention relates to the technical field of preparation of acoustic resonators, in particular to a cavity type bulk acoustic resonator with a lower electrode protection layer and a preparation method of the cavity type bulk acoustic resonator. The invention aims to provide a preparation method of a cavity type bulk acoustic wave resonator with a lower electrode protection layer and the cavitytype bulk acoustic wave resonator. By means of the design that the lower electrode is provided with the lower electrode protection layer wrapping the lower electrode, the technical problems that an existing etching agent of a sacrificial layer can affect etching of a lower electrode material, then the electrode structure is damaged, and the device performance is affected are solved.

The invention discloses a flavor yogurt containing functional factors and a preparation method thereof. The preparation method comprises two times of fermenting: in the fermenting process for the first time, using folium crataegi, folium nelumbinis, folium ginkgo and red bean residues after enzymolysis as substrates, and inoculating with a lucid ganoderma fermenting agent to ferment; in the fermenting process for the second time, adding red bean sprout pulp, skim milk powder and sugarcane as fermenting substrates on the basis of the fermenting primer for the first time, and inoculating with lactobacillus delbrueckii subsp. bulgaricus, streptococcus thermophilus, lactobacillus plantarum and lactobacillus brevis to ferment. The flavor yogurt has the advantages that the functional factors, such as active polysaccharides, flavone, gamma-aminobutyric acid and dietary fiber, are contained; the functions of resisting oxidizing and aging, regulating immunity and the like are realized; the biological conversion of effective ingredients is realized by the steps of ultrasonic treatment, enzymolysis, staged fermenting and the like, and the biological activity of the plant source flavone matter is improved; a concept is provided for the development of functional yogurt, and an economic and practical path is provided for the deep processing and utilization of the folium crataegi, folium nelumbinis and folium ginkgo.

The invention provides a dispersion method for surface non-covalent modification of a nickel nanowire, and belongs to the field of dispersion of nickel nanowires. The dispersion method comprises the following steps: surface treatment solution of the nickel nanowire is prepared; the nickel nanowire is added in the surface treatment solution for constant-temperature stirring to remove an oxide layer; after the nickel nanowire is repeatedly washed to become neutral, water solution of the nickel nanowire is prepared; a proper amount of surfacant is added in the water solution of the nickel nanowire; and the constant-temperature stirring is performed. The dispersion method uses hexadecyl trimethyl ammonium bromide, belonging to cation surfacant, as a dispersing agent to be easily bonded with the nickel nanowire with negative electricity on the surface in the neutral water solution, so that the surface energy of the nickel nanowire is largely reduced, the nickel nanowire can be uniformly dispersed more stably, and the easy agglomerating or winding problem of the nickel nanowire in the water solution is solved; and the dispersion method is gentle, simple in operation, convenient, low in cost, excellent in effect and broad in application prospect.