2809results about How to "The preparation method is simple and easy" patented technology

A production method of a preparation containing drug-encapsulating polymer micelles is provided, which comprises dissolving a hydrophilic-hydrophobic block copolymer and a sparingly water-soluble drug in a volatile organic solvent, then removing the solvent, and stirring the residue with water at a temperature not higher than 30° C. to dissolve the drug-encapsulating polymer micelles into the water.

The invention relates to a high-dehydration hardenable plugging sealing agent which comprises the following components by mass percent: 35-50% of solidifying material, 25-35% of composite sealing agent, 5-15% of high-dehydration material, 5-10% of elastic expending material and 10-15% of fiber material, wherein the composite sealing agent is formed by mixing granular husk, mica and cotton seed hull in a mass ratio of 5:2:1; the solidifying material is formed by mixing gypsum, cement, blast furnace slag and sodium phosphate in a mass ratio of 1:1:0.5:0.1; the high-dehydration material is kieselguhr or coal ash; the elastic expending material is formed by mixing coated water-sucking rubber and coated water-sucking resin in a mass ratio of 1:1; and the fiber material is polyacrylonitrile fiber of 9-11mm. The sealing agent integrates with high dehydration, delay expanding, plugging solidification and physical overlap joint; and the formed sealing layer is not easy to destroy in the subsequent drilling process, thereby effectively improving the sealing efficiency.

The invention discloses a water catalyst sterilizing and detoxifying device and a producing and using method thereof. The device comprises a water catalyst generator and a DC (direct current) power supply, wherein the water catalyst generator comprises an anode electrode and a cathode electrode which are both titanium electrodes; and the anode electrode is coated with a composite material coating. The producing method comprises the following steps of: (I) making electrodes; and (II) making the composite material coating: preparing composite material coating liquid, and brushing, drying and sintering the coating liquid in multiple times. The using method comprises the following steps of: a, placing the cleaned article and the water catalyst generator in the cleaning water; b, connecting the water catalyst generator with the DC power supply; and c, purifying the cleaned article with the water catalyst generator and the cleaning water. According to the invention, the design is reasonable, the producing and using processes are simple, and the purifying effect is good; and moreover, the problems of poor using effect, possible new pollution, easy damage to the nutrient components of thecleaned food and the like of the existing sterilizing and pesticide residue removing methods can be solved.

The invention belongs to the technical field of transitional-metal sulfide-carbon materials, and concretely relates to a phosphorus-doped nickel cobalt sulfide/carbon nanotube-carbon nanofiber composite material and a preparation method thereof. The preparation method comprises preparing carbon nanotube-doped carbon nanofiber through electrostatic spinning and high-temperature carbonization, then growing nickel cobalt sulfide nanorod in situ through a hydrothermal process, and finally calcining a phosphorus-containing precursor at a high temperature in an atmosphere of an inert gas, so as to prepare the phosphorus-doped composite material. The prepared carbon nanofiber possesses relatively large specific surface area, and the electric conductivity is effectively enhanced by doping carbon nanotube. By taking the carbon naofiber as a substrate, nickel cobalt sulfide nanorod uniformly densely grows on the surface of the composite fiber, and the synergistic effect of various substances is fully displayed. By doping phosphorus, the electrochemical activity of the composite material is further improved. The prepared phosphorus-doped nickel cobalt sulfide/carbon nanotube-carbon nanofiber composite material is applicable as a high-performance electro-catalytic material and an electrode material of lithium ion battery, solar cells and other new-energy-source devices.

The invention discloses a microorganism deodorant and a preparation method thereof. The microorganism deodorant has the following strain composition: 106-109/mL of Lactobacillus acidophilus, 106-109/mL of Bacillus pumilus, 106-109/mL of Bacillus subtilis, 105-107/mL of Pseudomonas fluorescens, 105-107/mL of Rhodopseudomonas palustris, 104-106/mL of Bantu Brettanomyces, 104-106/mL of common Candida albican, 104-106/mL of Penicillium expansum, 104-106/mL of Rhizopus oryzae, 104-106/mL of Trichoderma viride, 104-106/mL of Streptomyces Microflavus and 104-106/mL of Streptomyces griseus. Accordingto the microorganism deodorant, the release amount of obnoxious gas can be effectively lowered, and the technical support is provided for effectively processing fetor in livestock and poultry farms and protecting environment.

The invention discloses a capacitive touch screen and a manufacturing method; the capacitive touch screen comprises an upper glass substrate, a lower glass substrate and a sealant; the upper glass substrate and the lower glass substrate are bonded through the sealant; and transparent colorless gel is filled between the upper glass substrate and the lower glass substrate. The manufacturing method of the capacitive touch screen comprises the following steps: the upper glass substrate and the lower glass substrate are bonded together through the sealant to form a touch screen box; the glue is poured into the touch screen box; and the glue is solidified as the transparent colorless gel. The manufacturing method is simple in process. As no air layer exists, the capacitive touch screen can effectively prevent the scattering of the air layer to increase the light transmittance, the contrast and the color saturation. The capacitive touch screen can well improve the display effect.

The present invention provides a regenerable catalyst composition suitable for entrapping SO_x. The composition of the invention comprises a copper oxide having the formula (Cu/(A oxide) where A oxide is SiO₂, Zr—SiO₂, A1₂O₃, TiO₂—Al₂O₃, ZrO₂ and In₂O₃ or mixtures thereof. Copper loading may vary from about 10 to 60 mol % and is preferably about 25 mol %. The catalyst composition adsorbs SO_x as metal sulfate under lean conditions and desorbs accumulated SO_x as SO₂ under rich conditions. Such reversible SO_x trap are able to operate under conventional NO_x trap operating conditions to prevent sulfur poisoning of the NO_x trap. Furthermore, these traps may be regenerated under rich conditions at 300-450° C. In another embodiment of the present invention, an irreversible SO_x trap capable of collecting SO_x under lean conditions is provided. The traps of this embodiment include praseodymia, zirconia-praseodymia and mixed manganese-yttria and mixtures thereof.

The invention belongs to the technical field of transition metal sulfide-carbon materials and particularly relates to a cobalt disulfide/carbon nanofiber composite material and a preparation method and application thereof. The preparation process of the composite material includes the steps that carbon nanofibers are prepared through electrostatic spinning and a high-temperature carbonization method, and cobalt disulfide particles grow on the carbon nanofibers in situ through a solvent thermal method. The carbon nanofibers prepared through the method have large specific surface area, excellent conductivity, stable chemical performance and good mechanical performance. With the carbon nanofibers serve as substrate substances, the prepared cobalt disulfide/carbon nanofiber composite material has the advantage that the shape and the appearance are controllable, the cobalt disulfide particles evenly grow on the surfaces of the carbon nanofibers, and the synergistic effect of the cobalt disulfide particles and the carbon nanofibers can be given full play to. The prepared cobalt disulfide/carbon nanofiber composite material can serve as high-performance electric catalysis materials and electrode materials of lithium ion batteries, solar cells and other new-energy devices.

The present invention relates to one kind of artificial feed for raising larvae of lepidopterous insect, and the recipe consists of beer yeast powder, wheat plumule powder, tomato, food preservative, vitamin C, edible oil, agar and water. The present invention also relates to the preparation process of the feed. The feed of the present invention has low cost, easy compounding, stable feeding effect and powerful practicability.

The invention relates to obeticholic acid crystal form I, which is represented in the description, and a preparation method. The preparation method comprises the following steps: dissolving obeticholic acid in an organic solvent to form a solution, wherein the organic solvent is halogenated alkane or ester, and volatilizing the solution until all solvent is completely volatilized so as to obtain the obeticholic acid crystal form I. Compared with the known solid forms of obeticholic acid, the novel crystal form is more stable and is more suitable for being applied to industrial production. The invention also relates to a pharmaceutical composition of the novel crystal form and an application thereof in the preparation of drugs for treating and/or preventing FXR mediated impaired adjustment, cardiovascular disease, cholestatic liver disease, high HDL cholesterol, high triglyceride, and fibrosis diseases.

The invention discloses a microbial decomposition agent for animal wastes and straws and a preparation method thereof. The microbial decomposition agent comprises the following strains in parts by weight: bacillus, saccharomycetes, Aspergillus niger, Aspergillus oryzae, trichoderma sp, lactic acid bacteria, photosynthetic bacteria and actinomycetes. The decomposition agent has diversified functions, can be simultaneously used for composting straws and/or animal wastes, contains multiple functional bacteria and is high in microbe activity, the selected strains achieve a synergistic effect, do not generate antagonism, and the decomposition agent has the advantages of fast temperature rise and high temperature of fermented materials, complete decomposition, short decomposition time and the like. The preparation method of the microbial decomposition agent disclosed by the invention has the advantages of simplicity, feasibility, simple operation and low production cost.

The invention discloses a preparation method of a catalytic activity nano particle loaded absorbent, which comprises the step of: with a plurality of kinds of absorbing agents as carriers, surface-loading metal oxide nano particles with catalytic activity to obtain the efficient catalytic activity absorbent in sewage treatment. The invention also discloses an absorbent prepared by using the method and application thereof in the posttreatment of organic phosphorus containing sewage. The absorbent achieves the purpose of synergism of catalysis and absorption through carrying out catalytic oxidization reaction on the surface-loaded nano particles, thereby overcoming the problems of low capacity and difficult desorption of the traditional physical absorbing process and easy loss of components of catalysts in the high-grade oxidization technology in the sewage treatment, remarkably improving efficiency of removing the absorbent, and reducing process links and steps. The absorbent has wide application prospect on the aspects of domestic sewage purification, chemical plant sewage treatment, catalytic degradation of toxic substances in the sewage, and the like.

The invention discloses a method for preparing monodisperse bismuth nano-particles. The method adopts bismuth acetate as a bismuth source and adopts oleylamine or oleic acid as a package agent and a surface activity stabilizer to be synthesized into the bismuth nano-particles in an organic phase system. The operation steps of the method are simple, the used reagents are smaller in quantity and low in cost, the implementation is easy, and the method is safe and environment-friendly. The bismuth nano-particles prepared by the method has higher yield and good stability.

The invention discloses a combination used for preventing and treating newborn piglet diarrhea and a preparation method and application thereof. In percent by weight, the product comprises 88-98% of attapulgite ultra-fine powder, 0.1-3% of organic acid, 0.1-4% of probiotic, 0.05-2% of oligosaccharide, 0.05-1.5% of vitamin C and 0.15-3% of crane sugar. The combination disclosed by the invention isdiluted into solution with the mass fraction of 0.05-3% with drinking water, the solution is used for feeding a piglet in an oral or drinking water manner, and the newborn piglet diarrhea caused by multiple factors can be effectively prevented and treated, thus the combination has the effects of improving immunocompetence of the piglet, improving antioxidant function, regulating intestinal microecology and protecting intestinal shape and can improve survival rate of the piglet, improve production performance of the piglet and relieve weaned stress on the piglet. The combination disclosed by the invention also has the characteristics of simple and convenient application mode, high efficiency, available raw materials, simple preparation and the like.

An impregnating solution for preparing hydrocatalyst contains at least two metal components in VIB family and at least one metal component in VIII family. It is prepared through dissolving a water-soluble Mo-contained compound in water, and adding organic carboxylic acid, the compound containing metal in VIB family and the salt containing metal in VIII family. Its advantages are high stability and no irritative volatile component.

The concrete hydration heat reducer is compounded with one kind of material selected from starch grafted polyacrylate, hydroxyl acetic acid-lactic acid copolymer, modified starch, polymethylamide, polymethyl formacrylate, polyalkyl acrylonitrile and ethyl cellulose, and through dissolving in water, reaction at 5-55 deg.c, water phase-solid phase separation after reaction to obtain the solid phase concrete hydration heat reducer. The material has molar ratio to water of 1 to 1-50. The product can reduce hydration heat of cement obviously, reduce the early adiabatic temperature raise of concrete, reduce temperature raise rate to lag the peak temperature time by about 6 days, make the concrete possess excellent heat stability, less initial stage temperature stress and less cracks.

The invention discloses a preparation method of a water-based coating for lost foam casting. A coating prepared by the preparation method has excellent performances, good suspensibility, thixotropy and permeability, and high surface strength. The preparation method overcomes the defects that refractory powder adopted by the conventional casting coating preparation technology is very expensive and a coating production cost of the conventional casting coating preparation technology is high. A casting coating obtained by the preparation method is smooth and has appropriate viscosity. Through the preparation method, a high-quality casting coating can be prepared from cheap raw materials through simple production processes. Therefore, the preparation method reduces a coating production cost and realizes good finished product quality.

The invention discloses a nonwater-based grinding-medium-free chemical mechanical polishing solution adapted to polishing crispy and easily deliquescent crystal. The components of the polishing solution are as below in terms of weight percentage: 40-65% of oil phase, 10-22% of deionized water, and the balance of surface active agent. The oil phase is alcohol or ester, and the surface active agent can adopt high-carbon fatty alcohol polyethenoxy ether, polyoxyethylene nonyl phenyl ether, polyoxyethylene octyl phenyl ether or polyoxyethylate amide of a non-ionic surface active agent. The invention has the advantages of simple polishing solution preparing method, good fluidity, no toxicity, no pollution, no corrosion, good stability, no easy volatilization and long service life. The surface of a polished sample has a roughness concentration which can be up to 1.7 nm, is free from such defects as scratch, damage, and the like, and can be permanently stored at the room temperature in the airtight condition.

The invention relates to a nickel foam-loaded silver-doped nickel-based bimetallic hydroxide electrocatalytic hydrogen evolution catalyst and a preparation method thereof. The catalyst takes foam nickel as a carrier, nickel-based bimetallic hydroxide of a laminated structure is uniformly arranged and grows on the surface of foam nickel, and nano-silver particles are uniformly attached to the surface of the nickel-based bimetallic hydroxide. The nickel foam-loaded silver-doped nickel-based bimetallic hydroxide electrocatalytic hydrogen evolution catalyst takes three-dimensional porous foam nickel of a net structure as a carrier, the nickel-based bimetallic is combined with the carrier firmly, distribution is uniform, the catalyst has the good catalytic hydrogen evolution effect under the alkaline condition, and the stable catalytic activity can be kept in a long time.

The invention discloses a tobacco stalk biochar soil conditioner capable of reducing the content of heavy metals in tobacco, improving the tobacco quality and improving the soil environment, as well as an improvement method for tobacco field soil. The tobacco stalk biochar soil conditioner is prepared by mixing the following raw materials in parts by weight: 40-60 parts of tobacco stalk biochar and 40-60 g of a passivant. The tobacco stalk biochar soil conditioner is easy to obtain raw materials, simple in preparation method and low in cost, can effectively reduce the content of heavy metals in tobacco, and can improve the quality of tobacco field soil; a large number of waste tobacco stalks generated in tobacco growing areas are adopted as the raw material, the resource recycling of waste materials is realized, the sustainable development of the tobacco industry is facilitated, and the tobacco stalk biochar soil conditioner is suitable for large-scale popularization and application in the field of tobacco growing.

The antistatic paint is prepared with resin varnish 100(in weight portions, the same below), high structure carbon black 5-40 and preferably 20-25, solvent 15-50, and coupling agent 0.1-0.3. The resin varnish is acrylate, epoxy resin, polyester or polyurethane. The production process includes stoving carbon black at 60-100 deg.c, spraying carbon black with coupling agent, adding carbon blac, resin and solvent successively into container while stirring, and ball milling. The paint of the present invention has the same antistatic effect as antistatic plastic but much less consumption and thus much lower cost, and has no influence on the other performance, such as mechanical performance, of the painted body.

The invention provides a method for preparing hydrated adhesive, which solves the problems of disposable usage, difficultly-controlled pasting position, difficult removal and the like in the traditional tackifier fundamentally. The technical key points of the invention are as follows: the hydrated adhesive is prepared by mixedly stirring the following raw materials by weight percent at normal temperature and pressure: 10%-35% of sodium alga acid (C6H7O8Na), 5%-30% of competed hydrate, 20%-50% of water-soluble adhesive and 5%-65% of water. The hydrated adhesive in the invention has the advantages of controllable viscosity, stable physicochemical property, environment protection, capability of repeated use, no residual and the like, and is suitable for caking of solid materials such as various paper, plastic and the like.

The invention belongs to the technical field of transitional metal sulfide-carbon materials, and particularly relates to a tungsten disulfide/carbon nanofiber/graphene composite material and a preparation method thereof. The preparation method comprises the following steps: preparing a polyacrylonitrile nanofiber membrane in an electrostatic spinning manner; wrapping a polyacrylonitrile nanofiber with a graphene oxide through a solution immersion method; preparing a carbon nanofiber/graphene composite membrane through a high-temperature carbonization; and finally growing a tungsten disulfide nanosheet on the carbon nanofiber/graphene in situ through a one-step solvothermal method. The prepared tungsten disulfide/carbon nanofiber/graphene composite material has the advantages of stable chemical property, good conductivity, excellent mechanical property and the like, and can be used as an ideal high-performance electric catalytic material and an electrode material for new energy devices of a lithium-ion battery, a solar battery and the like.

The invention discloses a low temperature type lithium ion battery electrolyte with high temperature property and lithium ion battery. The electrolyte is made by uniformly mixing and confecting electrolytic salt, non-water organic solvent, alkali additive and film-forming additive, the electrolytic salt is mixed lithium salt made by uniformly mixing lithium tetrafluoroborate and lithium bis(oxalate)borate, and the mol ratio of the two is 96-73: 4-27, the concentration of the mixed lithium salt solution formed by the electrolytic salt and the non-water organic solvent is 0.8-1.2mol/L; the alkali additive is heptamethyldisilazane and the mass ratio of the hepatmethyldisilazane and the non-water organic solvent is 0.1-8%; the mass ratio of the film-forming additive and the non-water organic solvent is 0.1-5%; and the lithium ion battery comprises an anode, a cathode, a diaphragm and low temperature type lithium ion battery electrolyte with high temperature property. The invention has reasonable design, simple preparation method steps and convenient implementation, and the prepared electrolyte and lithium ion battery have favourable comprehensive performances.

The invention relates to a preparation method of a porous alpha-alumina carrier of a silver catalyst used for ethylene oxide production by virtue of ethylene oxidation. The method is characterized in that before a formed body is formed, and a titanium silicalite is added into a formed body raw material. The silver catalyst prepared by the carrier which is prepared by the method shows excellent epoxidation capability and activity in the process of preparing ethylene oxide by virtue of ethylene oxidation. The invention also relates to the carrier prepared by the method, the silver catalyst prepared by the carrier, and application of the silver catalyst in ethylene oxide production by virtue of ethylene oxidation.