151results 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.

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 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 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 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 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 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 discloses a wood fiber raw material anaerobic fermentation technology, including: crushing the wood fiber raw material, adding into a single-phase anaerobic reactor, and adding the inoculum for inoculation, mixing; regulating the TS load to 2 - 8%, sealing the reactor, performing anaerobic fermentation to produce methane; taking out the wood fiber raw materials in the anaerobic reactor after the peak of gas production, airing; using the NaOH solution to soak the raw materials; adjusting the pH of the wood fiber raw material after soaking to 6.8 - 7.5, adding the inoculum for fermentation inoculation once again. The invention performs anaerobic fermentation once more to the wood fiber raw material after anaerobic pre fermentation and alkali soaking to produce methane, the alkali consumption is decreased by 50 percent on the precondition that the wood fiber raw material biology conversion rate is largely elevated, the aerogenes cycle is considerable to that of the traditional alkali soaking pre-treatment, and the acid inhibitory effect is avoided in the anaerobic fermentation process, thereby having good economic and environmental benefits.

The invention discloses a preparation method and application of bamboo fiber micropowder. The method comprises the following steps: by using microporous bamboo fiber powder as a raw material, carrying out physical pulverization, and carrying out chemical treatment for modification, thereby obtaining the bamboo fiber micropowder with the fineness of 600 meshes or above. The bamboo fiber micropowder can be used as an industrial additive in paints and various coatings, can enhance the water resistance, moisture penetrability, aging resistance, ultraviolet resistance and mold resistance of the product, and can be added into a paint or varnish to deepen the color of the paint. The bamboo fiber micropowder can also be used in a sol addition material.

The invention discloses a starch-based adhesive and a preparation method thereof, and relates to the technical field of starch-based adhesives. The starch-based adhesive uses starch, polyvinyl alcoholand an inorganic filler as raw materials. The method comprises the following steps: pretreatment is performed on the starch through physical and chemical methods, respectively; the pretreated starchis oxidized by adopting a Fenton reagent; and finally, the oxidized starch, the polyvinyl alcohol, the inorganic filler, a crosslinking agent and a surfactant are subjected to an ultrasonic reaction to prepare the starch-based adhesive. The prepared starch-based adhesive disclosed by the invention not only has good water resistance and cementation quality, but also has high heat resistance.