115results about How to "Solve dissolve" patented technology

An additive for a positive electrode material includes an internal component and an external component. The internal component contains a silane coupling agent modified inorganic lithium salt. The external component is formed on a surface of the internal component and contains a polymer with a low melting point. The internal component and the external component form a core-shell structure together, and the shell has a porosity of 0.01％to 20％. A positive electrode material and a lithium-ion battery including the additive, and method of preparing the lithium-ion battery are also provided.

The invention provides an additive for a positive electrode material of a lithium ion battery, a preparation method of the additive, a positive electrode material containing the additive and the lithium ion battery. The additive has a core-shell structure; a core material contains silane coupling agent modified inorganic lithium salt, and a shell material contains a low-melting-point polymer and a conductive carbon material; and the porosity of a shell is 0.01%-20%. By adding the additive into the positive electrode material of the lithium ion battery, rich lithium at a cathode is realized; and compared with a routine method of supplementing lithium to the positive electrode or the cathode by directly adding active lithium, the safety is relatively high.

The invention discloses a method for preparing poly(arylene ether nitrile) resin, which belongs to the technical field of high polymer materials. The method comprises the following steps of: finishing a reaction in a reaction kettle under normal pressure under the actions of a catalyst and a dehydrating agent by taking 2,6-dichlorobenzonitrile and aromatic dicarboxylic phenol as raw materials and taking N-methyl pyrrolidone as a solvent; pressurizing and atomizing solution after dilution to a precipitating agent for precipitating; after heating, stirring and refluxing a precipitate and the precipitating agent to finish solvent extraction, performing solid-liquid separation by using a centrifugal machine; allowing liquid to enter a rectifying tower for rectifying and recovering the solvent; and drying solid after washing with boiling water to obtain the poly(arylene ether nitrile) resin of the invention. The method has the characteristics of easily implemented production conditions, and safe and environmentally-friendly production process. The poly(arylene ether nitrile) resin prepared by adopting the method of the invention has the characteristics of high purity and stable performance, and can be applied to the field of aerospace, electronics, machinery, medical treatment, chemical industry and the like.

The iron and zinc augite crystalline glaze is prepared through introducing great amount of ferric oxide and zinc oxide into augite crystalline glaze and through a conventional color glaze sintering process. Chemically, the iron and zinc augite crystalline glaze consists of SiO2 50-60 wt%, AL2O3 5-8 wt%, K2O 0-1 wt%, Na2O 2.5-3.5 wt%, CaO 6-7 wt%, MgO 5 -6 wt%, Fe2O3 5-15 wt% and ZnO 3-10 wt%. The iron and zinc augite crystalline glaze is prepared with the materials including albite 20-35 weight portions, calcite 10-18 weight portions, talcum 15-25 weight portions, iron red 5-15 weight portions, zinc oxide 3-10 weight portions, kaolin 3-5 weight portions and quartz 20- 30 weight portions.

The present invention is one new kind of cellulose solvent comprising lithium hydroxide 3.0-7.0 wt%, thiourea 3.0-6.0 wt% and water the rest. The said cellulose solvent may be used in dissolving natural cellulose and regenerated cellulose via mixing with cellulose, freezing and defreezing; or, it is first cooled to -10 deg.c to 0 deg.c and then maintained in -8 deg.c to 0 deg.c to dissolve natural cellulose and regenerated cellulose directly. The new cellulose solvent may be used to reach cellulose dissolvability as high as 100 % to prepare transparent dense cellulose solution. The dissolved natural cellulose may have molecular weight up to 200000. The new cellulose solvent may be used in preparing regenerated cellulose film, mixture film, cellulose / nano particle functional film and non-woven fabric, and may be also used as cellulose derivatizing reaction medium.

The invention belongs to the field of inorganic materials and particularly relates to a synthetic method of low-cost mesoporous graphite-phase carbon nitride. The graphite-phase carbon nitride is 3.9-6.14 nm in pore diameter, is 269-715 m<2>g<-1> in specific surface area, is 0.4-0.75 cm<3>g<-1> in pore volume and is in the form of a black powder. The synthetic method includes following steps: impregnating a mesoporous silicon dioxide material into an ethanediamine solution containing dicyanodiamine, stirring the solution, roasting the solution in an inert gas atmosphere, removing a silicon dioxide template, and drying the material to obtain the mesoporous graphite-phase carbon nitride material. Raw materials in the method are low in cost, slight in toxic and wide in sources. Meanwhile, the finally-prepared low-cost mesoporous graphite-phase carbon nitride is high in nitrogen content, specific surface area and pore volume.

The invention provides a porous carbon spheres-coated silicon / silicon dioxide nano-composite material and a preparation method and an application thereof. The porous carbon spheres-coated silicon / silicon dioxide nano-composite material comprises a silicon / silicon dioxide nano-composite material and porous carbon spheres, wherein the porous carbon spheres coat the silicon / silicon dioxide nano-composite material and comprise micropores and mesopores. The porous carbon spheres-coated silicon / silicon dioxide nano-composite material can form physical and chemical adsorption on polysulfide when used as an anode material for a lithium-sulfur battery, is high in sulfur loading capacity and demonstrates excellent electric capacity and cycling stability; and active materials are not easy to lose.

This invention discloses a method for preparing water-soluble lycopene nanoscale dispersion product. The method comprises: dissolving lycopene or its oleoresin in an organic solvent, mixing the organic phase with an aqueous phase dissolved with an appropriate emusilfier, breaking lycopene into nanoscale by ultrahigh pressure homogenization or ultrasonic breakage, and vacuum-distilling the organic solvent to obtain uniform and stable water-soluble lycopene nanoscale dispersion (50-500 nm). The water-soluble lycopene nanoscale dispersion product can be added into water-based foods at any ratio, which solves the problem of lycopene dissolution in water-based foods. Besides, the nanoscale lycopene particles can easily infiltrate into human cells, which can increase the biological value of lycopene.

The invention discloses a method for determining the content of components in blended fiber and relates to the method for determining the blended fiber. The method comprises the following steps: acquiring near infrared spectrum data of the blended fiber and a detected pure fiber, and converting the obtained near infrared spectrum data into angle values between the blended fiber and the detected pure fiber; by selecting a modeled blended fiber sample as a correction set, selecting a blended fiber sample to be detected as a prediction set, taking the content of the detected pure fiber in the correction set as a dependent variable and taking a matrix consisting of the correction set and the angle value of the detected pure fiber as an independent variable, establishing a multi-variable regression model through a partial least squares method; substituting the angle values of the blended fiber to be detected and the detected pure fiber into the multi-variable regression model so as to obtain the relative content of the detected pure fiber in the blended fiber to be detected. During fiber detection, sample pretreatment is not needed, an experiment environment requirement is reduced, and an analysis method is simple, quick and accurate and is also can be used for determining the content of components to be detected in the blended fiber when the components of the blended fiber are undetermined.

The invention provides a super-hydrophobic surface gas film regulation and control device based on near-wall surface gas saturation regulation. A super-hydrophobic coating, a hydrophilic base material, a power supply, electrolysis electrodes or heating elements and the like are used, and gas saturation in water close to a wall surface is regulated and controlled through he modes of water electrolysis reaction, wall surface heating and the like, so that a water body reaches a gas saturation state or even a supersaturation state; and three-phase contact lines for constraining a gas film are alternately arranged on a super-hydrophobic surface and a hydrophilic surface, the electrolysis electrodes or heating elements are located in a hydrophilic area with a smooth surface, and the super-hydrophobic area does not need to contain special functional elements; the gas film can be automatically sealed and stored in a super-hydrophobic surface microstructure, and gas dissolved in the supersaturation state can diffuse into the gas film spontaneously, so that free bubbles cannot be separated out in the smooth hydrophilic area or in the water body, and thus the influence of buoyancy, surface tension and the like on a gas supplementing effect is overcome.

The invention belongs to the technical field of polymer materials, and especially relates to a polyaryl ether nitrile resin and an industrialized synthetic method thereof. The structural unit of the polyaryl ether nitrile resin is one of units shown in the specification, and the crystallinity degree of the polyaryl ether nitrile resin is 28-38%. The polyaryl ether nitrile resin prepared by the invention is high in purity and high in crystallinity degree (28-38%); the glass transition temperature is 150-180 DEG C, the melting point is 310-355 DEG C, and the initial decomposition temperature is more than 450 DEG C; the resin has higher mechanical strength, the tensile strength is 100-120Mpa, the tensile modulus is 2.4-3.6GPa, and the bending strength is 100-140Mpa; and therefore, the polyaryl ether nitrile resin prepared by using the method disclosed by the invention can be applied to the fields such as aerospace, electronics, machinery, medical treatment, chemical engineering and the like.

The invention relates to a preparation method of meropenem as shown in the formula 1 and its hydrate. According to the method, a meropenem intermediate I is used as a raw material and a single solvent water is used as a reaction solvent to perform a hydrogenated deprotection reaction in the presence of alkali and a catalyst. The single solvent water is used as a reaction solvent in the method provided by the invention, thus solving the problem of dissolving the catalyst by the reaction solvent, reducing product degradation and raising product purity. In addition, the preparation method is economical, safe and environmentally friendly, and is more suitable for industrial operation at large scale.

The invention belongs to the technical field of display and particularly relates to an electrochromic display device and unit. The electrochromic display device comprises a first substrate and a second substrate which are opposite. An electrochromic layer and an electrolyte layer are disposed between the first substrate and the second substrate. An isolation layer is discoed between the electrochromic layer and the electrolyte layer. The isolation layer is made of material which allows the positive ions in the electrolyte layer to pass and stops negative ions and molecules to pass. The electrochromic display device is fast in response, free of crosstalk among pixels and good in display effect.

The invention discloses phosphorus-containing fire retardant as well as a preparation method and an application thereof, aiming at solving the problems that the application of phosphonitrilic chloride trimer in fabric flame retardancy is limited as the phosphonitrilic chloride trimer is poor in water solubility in the cellulosic fiber fabric flame-proof treatment process, is hard to apply to the cellulosic fiber fabric flame-proof treatment process, and moreover the flame retardant which is frequently used in the conventional flame-proof treatment process is toxic and toxic substances can be generated and the smoke suppression property is poor when the flame retardant fabric is combusted. The structural formula of the phosphorus-containing fire retardant is shown in the specification. The preparation method comprises the following steps: mixing phosphonitrilic chloride trimer with diethyl ether, adding degraded chitosan and pyridine, standing, performing suction filtration, washing, purifying and drying, thereby obtaining the phosphorus-containing fire retardant. The application comprises the following steps: 1, destarching and boiling to smelt; 2, respectively soaking and extruding for three times; and 3, drying, thereby obtaining a linen fabric after phosphorus-containing fire retardant treatment. The invention discloses the phosphorus-containing fire retardant, the preparation method and the application thereof.

The invention provides a wet tissue for kitchen cleaning and disinfection. According to the wet tissue for the kitchen cleaning and disinfection, alpha-alkenyl sodium sulfonate, fatty alcohol-polyoxyethylene ether sodium sulfate, C12 fatty alcohol polyoxyethylene (9) ether, ethylenediamine tetraacetic acid disodium, sodium citrate, 1, 2-propylene glycol, arachlorometaxylenol, isothiazolone, essence, citric acid and deionized water are prepared into wet tissue raw liquid according to a certain proportion, the wet tissue raw liquid is evenly dripped on a spunlace non-woven fabric film, and then sealed and packed to form a product. When the wet tissue for the kitchen cleaning and disinfection is used, the wet tissue simply covers on an article to be wiped evenly, and the article is wiped repeatedly after a few moments. The wet tissue for kitchen cleaning and disinfection has the advantages of being not harmful to hand, strong in degreasing ability, obvious in disinfecting effect, convenient to use and the like.

The invention discloses a photochromic resin lens with refractive index of 1.50. The photochromic resin lens with refractive index of 1.50 comprises the following materials: a resin monomer, an initiator and color changing liquid based on the ratio of 100:(0.5-3.0):(1.0-4.0); the resin monomer is a mixture of diglycol allyl carbonate and a polymer of diglycol allyl carbonate; the initiator is one or the mixture of peroxide-2-ethylhexyl tert-butyl carbonate, peroxide-2-ethylhexyl tert-amyl carbonate and 1,1-bi(tert-butyl peroxide)-3,3,5-trimethyl-cyclohexane; the color changing liquid is a photochromic organic material dissolved with an organic solvent. The preparation method comprises the following steps: (1) weighting the resin monomer, the initiator and the color changing liquid based on the ratio, and uniformly mixing; (2) casting; (3) thermally curing for the first time; (4) opening a die, turning the edge, and washing; (5) thermally curing for the second time for 2 hours at the temperature of 110 DEG C; (6) checking and warehousing. The prepared photochromic resin lens with refractive index of 1.50 is high in abbe number, clear in imaging, and suitable for a customer wearing; the visible light transmittance after the color changing is equal to or less than 30%.

The invention discloses a method for improving the solubility of alcohol leaching soy protein concentrate by use of a step-by-step enzymolysis technology, belonging to the field of soy protein processing. According to the invention, the alcohol leaching soy protein concentrate is modified by the following steps of: (1) mixing alcohol leaching soy protein concentrate powder and distilled water to obtain a solution with certain concentration, and performing enzymolysis on the solution with cellulase for enzyme inactivation; (2) performing enzymolysis on the alcohol leaching soy protein concentrate solution in the step (1) with neutral protease or trypsin for enzyme inactivation; and (3) homogenizing the alcohol leaching soy protein concentrate solution in the step (2), and performing spray drying. Experiment shows that: the solubility of the alcohol leaching soy protein concentrate before modification is 16g / 100g, the solubility of the alcohol leaching soy protein concentrate after hydrolysis with protease only can reach 63g / 100g, and the solubility of the alcohol leaching soy protein concentrate after the step-by-step enzymolysis can reach 82g / 100g which is 19% over that of the same kind of products, and thus the solubility after modification is sufficiently reflected.

The invention discloses a whitening and freckle-removing composite preparation which comprises the following components: deionized water, sucrose stearate, glycerol, butanediol, N-methyl pyrrolidone, carbomer, phenoxyethanol, glyceryl stearate, polydimethylsiloxane, squalane, butyrospermum parkii, phytosterol hydroxystearate, a pepper extract, seed oil of prinsepia utilis, a camellia reticulata tea extract, a folium artemisiae argyi extract, a horse chestnut extract, tetrahydrocurcumin, glutathione, azelaic acid and xanthan gum. The whitening and freckle-removing composite preparation disclosed by the invention is mainly designed from four whitening and freckle-removing mechanisms of melanin synthesis inhibition, skin barrier remediation, blood vessel factor improvement and inflammation prevention and has the functions of whitening the skin, removing freckles and beautifying the face. The invention further discloses a preparation method of the whitening and freckle-removing composite preparation. The problem of dissolving azelaic acid is solved by using a special process, and thus the stability of the product is improved.

The invention discloses a core-shell structured lithium-sulfur battery cathode material, which is characterized by having a core-shell structure. The core is nanoscale elemental sulfur. There can be one or more cores. The layer outside the core is loose good-conductivity carbon nanotube, carbon nanofiber or a mixture of carbon nanotube and carbon nanofiber. The outermost layer is the shell which is composed of citric acid or asphalt cracked carbon and has certain hardness. The method of the invention has advantages of simple preparation and low cost, and is beneficial to large-scale production and is conducive to realize commercialization of the lithium-sulfur battery cathode material.

The invention discloses stable bromochlorohydantoin disinfection liquid. The stable bromochlorohydantoin disinfection liquid comprises the following components in parts by weight: 1-20 parts of bromochlorohydantoin, 0.1-15 parts of a cosolvent, 1-10 parts of a stabilizing agent, 0.1-2 parts of a synergist, 1-5 parts of a pH regulating agent and 50-90 parts of water. The stable bromochlorohydantoin disinfection liquid has the beneficial effects that the stability is far superior to the use effects of similar disinfectants in the current market, the reduction of the effective concentration of the disinfection liquid is smaller than 10% after the disinfection liquid is put into a drying oven with temperature of 54 DEG C to be preserved for 14 days, and thus the disinfection liquid can meet the stability requirement of Ministry of Health on the disinfection liquid; a surface disinfection effect is enhanced; for achieving the preferable surface disinfection effect, the synergist is added to reduce the surface tension of the disinfection liquid to be below 40 dyne / cm, so that the disinfection liquid can well wet the surfaces of microorganisms to achieve the synergistic effect.

The invention relates to a method for preparing a lithium-sulfur battery anode based on catalysis of active MnO2. The method comprises the following steps: uniformly mixing nano-sulfur simple substance powder, activated manganese dioxide powder, carbon fibers and carbon nano-tubes in a proportion (mass ratio) of (85-90) to (5-10) to 1 to 1, adding absolute ethyl alcohol which has equal mass with the mixture, stirring to obtain a slurry, adding a certain amount of polytetrafluoroethylene (PTFE) emulsion, stirring to obtain paste, uniformly smearing carbon fiber cloth with the paste, heating to120 DEG C under the protection of nitrogen, and heating for 20 minutes, so as to obtain a sulfur electrode. By activating manganese dioxide, the surface of manganese dioxide is adsorbed with particlesof Fe, Ni and the like, and the oxidation reduction of sulfur is integrally catalyzed, so that the charge and discharge electric current densities of the sulfur electrode are increased, high-rate discharging is promoted, more importantly, the unit area capacity of the sulfur electrode can be increased, and a foundation is provided for the preparation of a lithium-sulfur battery with specific energy higher than 700Wh / kg.

The invention discloses a method for synthesizing a ternary-copolymerized super-absorbent resin. The method comprises the following operating steps: weighing chitosan hydrochloride, itaconic acid and acrylic acid according to the mass ratio of (1-11): (2-10): (3-17); firstly, dissolving chitosan hydrochloride and itaconic acid, which are in the mass ratio, into distilled water, and transferring a mixed solution into a four-mouthed flask which is provided with a nitrogen gas conduit and a reflux condensation tube; heating to the temperature of 30-80 DEG C, then, adding a 1%-18% initiator, continuing to react for 1-6 hours under the protection of nitrogen gas, and dropwise adding acrylic acid which is in the mass ratio during reaction; mixing a reactant and ethanol, purifying and baking, thereby obtaining the ternary-copolymerized super-absorbent resin. According to the method disclosed by the invention, the process is simple, and the selected chitosan hydrochloride is a monomer, so that the problem of chitosan solubility is solved, and polymerization reaction can be carried out under neutral conditions; itaconic acid added during the synthesis of the product is a monomer, so that the water absorbency of the product is further improved, the highest absorption volume of deionized water is 1,000-1,100 times, the highest absorption volume of tap water is 300-400 times, and the highest absorption volume of normal saline is 100-120 times.

The invention provides a concentrated garment washing solution, which is prepared from the following main components in parts by mass: 3 to 35 parts of anionic surfactant, 6 to 25 parts of isomeric alcohol ether surfactant, 8 to 18 parts of nonionic surfactant, 3 to 12 parts of zwitterionic surfactant, 0.1 to 2 parts of biological enzyme, 0.1 to 0.3 part of benzisothiazolone, 0.1 to 0.8 part of essence and 15 to 65 parts of deionized water. The concentrated garment washing solution provided by the invention is excellent in washing effects, friendly to a human body and an environment, green andenvironmentally friendly.

The flunarizine hydrochloride injection consists of flunarizine hydrochloride 1-5 g, 0.1 mol / L sodium hydroxide solution 0-250 ml and water for injection or 5 % or 10 % glucose solution 50,000 ml; or flunarizine hydrochloride 1-5 g, and 0.1 mol / L hydrochloric acid solution 0-600 ml or 10 % glucose solution 1,000,000 ml. The preparation process makes flunarizine hydrochloride dissolved fully through adding flunarizine hydrochloride into solution at low temperature to disperse flunarizine hydrochloride through stirring, and heating to relatively high temperature to dissolve flunarizine hydrochloride fully. The injection contains no solabilizer and analgetic, thus has no bad irritation to blood vessel and muscle, and is convenient in use, safe and obvious in curative effect.

The invention provides an apparatus and a method for preparing UO2 through molten salt electrolysis of U3O8. The apparatus comprises an electrolytic tank crucible, chloride molten salt, an inert cathode and an anode device, the inert cathode and the anode device are inserted into the chloride molten salt, and the inert cathode comprises a molybdenum sheet or a tungsten sheet and a corundum sleevewrapping the molybdenum sheet or the tungsten sheet; and the anode device is formed by putting a graphite rod in a quartz glass tube with a closed bottom and with holes formed in the two sides, immersing the small holes in the two sides of the quartz glass tube in the chloride molten salt and sealing the top end of the quartz glass tube. Cl2 generated by electrolysis is applied to dissolution of U3O8 in a chloride molten salt system, so emission of Cl2 can be reduced, and repeated utilization of resources is achieved; and the problem of dissolution of U3O8 in the chloride molten salt can be solved. The process is carried out in an atmospheric environment, other auxiliary dissolving reagents are not introduced, other precipitates are not formed, and the whole process is simple to operate and low in cost.

The invention relates to a method for improving the content of resveratrol in a wine base. The method comprises the following steps: dissolving resveratrol crystals having a purity of above 85% in a wine having an alcoholic strength of above 20%vol, wherein the ratio of the resveratrol crystals to the wine is 1:50-150(g / ml); preparing a resveratrol-containing wine concentrate; and adding the resveratrol-containing wine concentrate into a wine base. The method has the advantages of simple technology, low cost, strong controllability, good reappearance, suitableness for processing various wines, no obvious change of the mouthfeel and the flavor of the blended wine, high commercial value, and suitableness for industrialized production.

The invention discloses a purple sweet potato based compound oxidation-resistant solid instant beverage and a preparation method. The purple sweet potato based compound oxidation-resistant solid instant beverage is prepared from the following raw materials in parts by weight: 8 to 12 parts of purple sweet potato superfine powder, 1 to 3 parts of carrot and haematococcus pluvialis superfine powder respectively, 4 to 8 parts of sweetening agent, 2 to 4 parts of water-soluble dietary fiber and 0.4 to 0.6 part of emulsifying agent. According to the purple sweet potato based compound oxidation-resistant solid instant beverage and the preparation method thereof, oxidation-resistant natural pigments with different properties are combined, synergistically exert an oxidation-resistant effect, and particularly have a quick and moreover persistent action on the health of vision, a skin and a central nervous system; through adding functional health-care ingredients, the stability of a system is further improved with solubilization and emulsification actions; through carrying out superfine pulverization treatment and wet-method loose granulation on a purple sweet potato, the favorable water solubility and dispersity of a product are guaranteed; the purple sweet potato based compound oxidation-resistant solid instant beverage and the preparation method thereof are simple in process and lower in energy consumption; the losses of active ingredients of the pigments under steam-cooking, physical pulverization and low-temperature drying processes are few; total nutritional ingredients and an original aromatic and mellow taste of the purple sweet potato are retained.

The invention discloses an asymmetric GM multi-modal fusion saliency detection method and system based on CWAM, and the method comprises the steps: collecting image data for preprocessing, and forminga sample data set; constructing a convolutional neural network model based on a deep learning strategy, and inputting the sample data set for training to obtain a saliency detection graph; forming aset by the trained saliency detection images, and calculating a loss function value between the set and the corresponding real human eye annotation image set to obtain an optimal weight vector and anoptimal bias term; and inputting a to-be-detected image into the trained convolutional neural network model, and performing prediction judgment by using the optimal weight vector and the optimal biasterm to obtain a saliency detection image of the image. According to the method, multi-scale and multi-level rich image information of the depth map and the RGB image can be effectively utilized, andthe problem of dissolution when high-level features are transmitted to a low level is effectively solved; and after a channel attention module is added, the expression of the salient region is enhanced.

The invention discloses a positive and negative photoresist technology combined microstrip line manufacturing method. The positive and negative photoresist technology combined microstrip line manufacturing method includes: 1), spinning a layer of positive photoresist on glass sheets or silicon slices as a device releasing sacrificial layer; 2), deposing a layer of Cu metal on the positive photoresist via the magnetron sputtering technology as an electroplating seed layer; 3), coating the positive photoresist on the Cu seed layer and photoetching; 4), using electroplate Ni as a microstrip line ground layer; 5), sputtering the Cu metal layer; 6), coating SU-8 photoresist on the Cu layer and photoetching; 7), sputtering a Cr / Cu electroplating seed layer; 8), coating photoresist on the SU-8 dielectric layer, and photoetching; 9), electroplating microstrip line; 10), dissolving the positive photoresist with solvent, so that microstrip line devices with the SU-8 photoresist as the dielectric layer are released from glass or silicon slices.