398results about How to "Preparation method science" patented technology

The invention discloses a preparation method of monodispersed M-phase vanadium dioxide nanoparticles. The preparation method comprises the following steps: mixing vanadium pentoxide, oxalate dihydrate and water according to a molar ratio of (1-2.5) : 1 : (500-800) to obtain mixed liquid, adding 4%-6% of a surfactant based on the volume of the mixed liquid into the mixed liquid, and stirring for at least 2 hours to obtain a precursor solution; reacting the precursor solution in a sealed state at 200-260 DEG C for at least 1 day to obtain reaction liquid; performing solid-liquid separation and washing on the reaction liquid in sequence to obtain orthogonal vanadium dioxide powder; annealing the orthogonal vanadium dioxide powder in a nitrogen atmosphere at 300-600 DEG C for 0.5 hour to obtain the monodispersed M-phase vanadium dioxide nanoparticles with particle sizes of 60nm-80nm. The preparation method has the advantages of environmental protection and no temperature gradient control during annealing, and can be widely used for preparing the M-phase vanadium dioxide nanoparticles with very good dispersity.

The hair washing and protecting composition of natural plant components is compounded with tea seed oil or tea cake powder in 75-96 weight portions and ginger powder in 1-30 weight portions as main components, as well as natural vegetable oil in 2-8 weight portions and yolk powder in 1-2 weight portions, with the natural vegetable oil being mint oil, lavender oil, olive oil or sesame oil. It may have different compounding ratio for fitting different hairs. The hair washing and protecting composition of the present invention has functions of eliminating oil and grease, eliminating scurf, stopping itching, improving blood circulation, protecting hair, restoring hair, and improving sleep quality.

The invention discloses a nanometer fire retardant coating and a preparation method thereof. The coating comprises inorganic filler, a film-forming agent, a firm-forming aid, a plasticizer, a cross-linking agent and a drier, wherein the inorganic filler is a modified nanometer composite particle of an inorganic nanometer particle of which the surface is covered with silicon dioxide particles. The preparation method comprises the following steps of: adding the inorganic nanometer particle to a sodium silicate aqueous solution; agitating; adjusting with acid; ageing to obtain mixed sol; performing suction filtration and washing for the mixed sol; drying to obtain the composite particle; sequentially adding the composite particle and a silane coupling agent to ethanol while stirring to perform reflux reaction so as to obtain reaction liquid; alternately centrifugally washing and separating the reaction liquid with ethanol to obtain the modified nanometer composite particle; and then mixing the modified nanometer composite particle, the firm-forming agent, the firm-forming aid, the plasticizer, the cross-linking agent and the drier and performing ball milling, so as to obtain the target product. The nanometer fire retardant coating can perform endothermic reaction to produce a ceramic heat insulating layer in different stages of a fire, and can be widely applied to various situations requiring fire resistance and inflaming retarding performance.

The invention discloses a porous zinc oxide-silver composite nanorod, as well as a preparation method and application thereof. The composite nanorod is formed by zinc oxide particles; sliver particles are loaded on the surface of the in porous rodlike zinc oxide, meso pores are formed between zinc oxide and / or silver particles, the rod length of the porous rodlike zinc oxide is 0.6-3 mum, the rod diameter is 90-150 nm, the specific surface area is 18-22m<2> / g, the particle size of the zinc oxide is 10-30nm, the size of the silver particles is 20-30nm, and the meso pore diameter is 3-30nm. The method comprises the following steps of: firstly mixing zinc acetate ethanol solution and ethanol oxalate dehydrate solution; putting the mixture in a seal state; insulating for at least 5h at the temperature of 70-90 DEG C; centrifuging, washing and drying; annealing the obtained zinc oxalate for at least 2h at the temperature of 430-470 DEG C; adding the zinc oxalate into silver nitrate ethylene glycol solution; stirring for at least 15min under visible light; and centrifuging, washing and drying, thereby preparing a target product. The porous zinc oxide-silver composite nanorod can be used for carrying out visible light catalytic degradation in water polluted by organic matters.

The invention discloses an electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber. The electrostatic spinning preparation method comprises the following steps of: firstly mixing a macromolecular polymer and a polymer solvent according to mass ratio of (2-15):(85-98), and stirring a mixture at 20-60 DEG C for at least 2h to obtain a mixed solution with concentration of 2-15%; mixing soluble POSS and the obtained mixed solution according to the mass ratio of the POSS to the macromolecular polymer being (1-20):(80-99), stirring the mixture at 20-60 DEG C to fully dissolve the POSS to obtain the spinning solution; and arranging the spinning solution on an electrostatic spinning device and spinning to obtain the POSS-containing polymer composite fiber. The prepared POSS-containing polymer composite fiber has high specific surface area and remarkably improved heat resistance, can be widely applied to the fields of preparation of high-efficiency filter materials, antibacterial medical materials, carbon materials and the like.

The invention discloses a micron semisphere composed of silver nano-flakes as well as a preparation method and a use thereof. The micron semisphere with the diameter of 1-30mu m is formed by stacking the silver nano-flakes adhered to a conducting substrate into a sector plate, wherein, the plane of the sector plate is vertical to the center of the semisphere; and the nano-flakes forming the sector plate are of a single crystal structure of silver, the length is 0.5-15mu m, the width is 20nm-1mu m and the thickness is 20-50nm. The preparation method comprises the following steps: firstly evenly mixing a silver nitrate aqueous solution with the concentration of 2-32g / L and a citric acid aqueous solution with the concentration of 8-144g / L based on the volume ratio of (0.8-1.2): (0.8-1.2) to obtain an electrolyte; and taking the conducting substrate as a cathode and a graphite flake as an anode to be placed in the electrolyte, and carrying out electro-deposition under constant current with the density of 0.1-1mA / cm<2> for 10-180 minutes to finally obtain the micron semisphere composed of the silver nano-flakes. The obtained micron semisphere can be utilized as a surface enhanced Ramanscattering (SERS) active substrate so as to measure content of rhodamine or polychlorinated biphenyls (PCBs) or p-methyl benzenethiol adhered thereon by utilizing a confocal Raman spectrometer.

The invention provides a composite degradable antibacterial artificial cerebral dura mater, comprising a vancomycin or ofloxacin hydrochloride injection, chitosan and sodium beta-glycerophosphate. The invention is characterized in that a spongy collagen biomembrane stent is prepared from a decellularized membrane-like derivative material, a chitosan solution with a concentration of 2% (w / v) and a sodium beta-glycerophosphate solution with a concentration of 56% (w / v) are used and mixed, and since a hydrogel formed by a compound of the chitosan solution and the sodium beta-glycerophosphate solution at a temperature of 37 DEG C has the characteristic of temperature sensitivity, the vancomycin or ofloxacin hydrochloride injection is added into the compound to form a solution which is used for soaking of the prepared spongy collagen biomembrane stent to prepare a suture-free cerebral dura mater, and the hydrogel compound uniformly infiltrates into the spongy collagen biomembrane stent after disposition in an incubator with a temperature of 37 DEG C for 10 min so as to form the absorbable artificial cerebral dura mater with antibacterial activity. The invention further provides a preparation method. The preparation method has the characteristics of convenience in preparation, easy film formation, low cost, convenient operation, etc.

The invention discloses a silver nanowire array electrode, a preparation method and application thereof. The electrodes are silver nanowires forming an array with a diameter of 50-70nm and a wire length of 250-350nm. The bottom of the array is a silver film of 130-170nm and a copper film of 0.5-1mm; the method is to use a secondary anode on the aluminum sheet first Oxidation method to obtain a through-hole alumina template with a pore diameter of 50-70nm, and then use the ion sputtering method to vapor-deposit a silver film on one side of the alumina template, and then place the alumina template with a silver film on one side in a silver electrolysis solution, use the electrodeposition method to electrodeposit at a constant voltage of 0.08 to 0.12V for 1 to 5 minutes, then place it in the copper electrolyte, use the electrodeposition method to electrodeposit 2.5 to 3.5 at a current of 8 to 12mA / cm2 h, after that, put the aluminum oxide template with silver nanowires in the hole, one side covered with silver film and copper film in sequence, in acid solution or strong alkali solution to corrode the aluminum oxide template, and make silver nanowire array electrode. Array electrodes can be used as sensitive elements for trace detection or reduction of halogenated organic compounds.

The invention discloses a low surface energy polyester film and a preparation method and application thereof. One side of the low surface energy polyester film is a modified polyester layer, and the other side is a low surface energy polyester layer, wherein the modified polyester layer comprises the following components in percentage by weight: 300 to 5,000ppm of antiblocking agent, and the balance of modified polyester; the low surface energy polyester layer comprises the following components in percentage by weight: 90 to 99.9 percent of modified polyester, 0.1 to 10 percent of low surface energy additive, and 300 to 5,000ppm of antiblocking agent. The low surface energy polyester film is simple in structure, scientific in formula and simple and convenient in preparation method, overcomes lots of defects of the prior art, has the advantages of safety, sanitation, corrosion resistance, no conglutination to packaged contents and tight connection with a metal base material, and can be widely applied to metal can food packing industry.

A colloidal gold-silver united test paper used for detecting etiology of important disease on Felidae and Canidae animal is prepared mix-enveloping mouse source RV, CDV, RPV and CPV single-anti being labeled with colloidal gold on glass cellulose membrane to form combination pad; enveloping IgG of purified dog-resisting RV, CDV, FPV and CPV on R, D, F and P positions of detection line at nitric acid cellulose membrane and enveloping rabbit resisting mouse IgG on C position of quality control line at nitric acid cellulose membrane to from detection membrane.

The invention is a preparation method of porous foamed iron-chromium-aluminum alloy material, which is characterized in that: the steps include: select porous material, soak water-based polymer adhesive at normal temperature; mix chromium powder and high-activity aluminum The powder is evenly sprayed on the surface of the porous material impregnated with the water-based polymer adhesive; drying; the excess chromium powder and aluminum powder are separated from the porous material matrix; the chrome-aluminum porous material is dip-coated with conductive adhesive; Electrodeposition of iron after warm curing treatment; redox treatment; secondary diffusion treatment of chromium and aluminum to obtain porous foamed iron-chromium-aluminum alloy material. Its preparation method is scientific, the selected process parameters are reasonable, the quality is easy to control, the cost is low, and it can be prepared with light weight, large specific surface area, ultra-thickness, thickness is 5-100mm, high porosity 96-99.9%, high temperature resistance and corrosion resistance. Excellent, able to meet the requirements of high temperature resistance, corrosion resistance and other harsh working conditions. It is especially suitable as high-temperature filtration, chemical catalysis, carrier, burner gas distribution and high-temperature flame-retardant materials.

The invention discloses an oil field chemical agent used in petroleum gas oil-pumping operation construction, and particularly relates to a low-permeability reservoir water-lock releasing agent used in working fluid and a preparation method thereof. The low-permeability reservoir water-lock releasing agent consists of the following components in percentage by weight: 1 to 15 percent of glycol ether, 15 to 45 percent of didodecyl dicarboxylic sodium, 15 to 30 percent of ethylene glycol silicon ether and 30 to 60 percent of water. The preparation method comprises the following steps of: adding 30 to 60 percent of water into an enamel reaction kettle, starting a stirrer, and heating to raise the temperature to be between 30 and 40 DEG C; adding 1 to 15 percent of glycol ether and 15 to 45 percent of didodecyl dicarboxylic sodium into the reaction kettle, controlling the temperature and stirring for 1 hour; and adding 15 to 30 percent of ethylene glycol silicon ether into the reaction kettle, controlling the temperature to be between 40 and 80 DEG C, and reacting for 1 to 2 hours to obtain the water-lock releasing agent. The water-lock releasing agent is strong in surface activity and low in use level, can well maintain the permeability of a low-permeability reservoir and release water-lock damages, and is used in the working fluid such as fracturing fluid, perforating fluid, well control fluid and the like.

The invention discloses a composite material with a negative ion releasing function and a preparation method thereof. The composite material comprises tourmaline powder, an auxiliary agent(s) and a macromolecule matrix(es) which are in a weight ratio of 5-20:2-10:70-93, wherein the grain size of the tourmaline powder ranges from 500 nanometers to 3 microns, the auxiliary agent is one or more than two of polyethylene glycol, polypropylene glycol, polytetramethylene glycol, cetyl sodium sulfate, cetyl sodium sulfonate, octaphenyl polyoxyethyiene and cetyl trimethyl ammonium bromide, and the macromolecule matrix is one or more than two of polyethylene, polystyrene, polymethyl methacrylate, polyurethane, polyvinyl chloride and polyacrylate. The preparation method comprises the following steps of: firstly, ball milling the tourmaline powder, the auxiliary agent and water in a ball mill or stirring and shearing in an emulsifying machine; then, drying; adding the mixture into a macromolecule reaction monomer for in-situ synthesis, or mixing the mixture with the macromolecule matrix(es) and then carrying out melt blending after mixing the mixture, so as to prepare a target product. The composite material can automatically release a large quantity of negative ions.

The invention relates to leisure foods and a preparation method thereof. Fragrant crispy dendrocalamus latiflorus comprises the following ingredients in parts by weight: 1000-1200 parts of dendrocalamus latiflorus, and 60-180 parts of rod chilli. The preparation method of the fragrant crispy dendrocalamus latiflorus comprises the following steps of: a. cleaning the dendrocalamus latiflorus; b. boiling and killing green; c. cutting: cutting the dendrocalamus latiflorus into dendrocalamus latiflorus strips, dendrocalamus latiflorus slices and dendrocalamus latiflorus dices with a knife, and classifying the dendrocalamus latiflorus strips, dendrocalamus latiflorus slices and dendrocalamus latiflorus dices; d. pickling: pickling 100 parts of the dendrocalamus latiflorus strips, the dendrocalamus latiflorus slices or the dendrocalamus latiflorus dices for 1-12 months with 4-6 parts of edible salt; e. soaking with clean water; f. cooking: adding the dendrocalamus latiflorus strips, or the dendrocalamus latiflorus slices after the water is boiling, cooking with strong fire to be boiling for 2 minutes, and taking out; g. shock chilling: immediately cooling the cooked dendrocalamus latiflorus strips, the dendrocalamus latiflorus slices or the dendrocalamus latiflorus dices with water of 8-12 DEG C, so as to enable the temperature of the dendrocalamus latiflorus strips, the dendrocalamus latiflorus slices or the dendrocalamus latiflorus dices to be cooled below 15 DEG C; h. soaking in seasoning soup; i. packaging; j. sterilizing; and k. checking. The fragrant crispy dendrocalamus latiflorus is tender, fragrant, crispy and delicious, and has a unique flavor. The preparation method of the fragrant crispy dendrocalamus latiflorus is scientific and reasonable, the quality of the fragrant crispy dendrocalamus latiflorus can be ensured, the production cost can be lowered, and the fragrant crispy dendrocalamus latiflorus has the popularization values.

The invention discloses a nanometer ferroferric oxide core-carbon meso pore hollow shell complex, as well as a preparation method and application thereof. The complex is formed by ferroferric oxide particles and a carbon shell sleeved and sealed outside, wherein the carbon sheel is of a mesoporous structure with the hole diameter being 1-5nm; the grain size of the ferroferric oxide particles is 8-12nm; the external diameter of a carbon mesoporous shell is 80-100nm; the thickness of the shell is 10-20nm; and the diameter of a hollow part between the ferroferric oxide and the carbon mesoporous shell is 30-60nm. The preparation method comprises the following steps of: synthetizing ferroferric oxide nanometer nanometers through a high-temperature reflux method, using a microemulsion method to obtain a ferroferric oxide core silicon dioxide shell powder body; then depositing a layer of mesoporous silicon dioxide on the surface of a silicon dioxide shell through a chemical method to obtain a three-layer core shell structure; taking the three-layer core shell structure as a hard template, and depositing carbon in clearances of the mesoporous silicon dioxide; and finally, etching the silicon dioxide by utilizing strong alkali solution, thereby obtaining a target product. The nanometer ferroferric oxide core-carbon meso pore hollow shell complex can be used for carrying out adsorption processing in solution polluted by methylthionine chloride, congo red or phenol.

The invention discloses a preparation method of a titanium dioxide nanopore array film. The preparation method comprises the steps of: mixing ammonium fluoride, water and ethylene glycol to obtain an electrolyte, oxidizing a two-electrode system by using a titanium sheet as a positive electrode and graphite as a negative electrode to obtain an electrolyte 1 and an electrolyte 2; then sequentially placing the titanium sheet in the electrolyte 1, the electrolyte 2 and the electrolyte to be oxidized to obtain a titanium oxide sheet; placing the titanium oxide sheet in a hydrofluoric acid to be corroded, blowing the hydrofluoric acid solution by air in a bypass to obtain a titanium oxide film stripped from the titanium oxide sheet; and finally, sequentially respectively placing the titanium oxide film into hydrofluoric acid solutions with different concentrations for being corroded, gradually diluting the hydrofluoric acid solutions until the concentrations reach 0.004-0.006wt percent, and finally preparing the titanium dioxide nanopore array film with thickness of 10-50nm. A target product prepared by adopting the preparation method can be used as a mask for preparing a quantum dot, and can be used as a micro gate to be applied to a sample support of a transmission electron microscope, and is a good filter bacterium film material further.

The invention discloses a film formed by silver nanosheets and a preparation method and application of the film. The film is 200-500nm in thickness and is formed by covering a nanometer flat branch cluster on a conductive substrate, wherein a gap between every two nanometer flat branches in the cluster is 1-15nm; and the film is formed by connecting nanosheets with arc-shaped edges in series, wherein the thickness of each nanosheet is 10-50nm, width is 30-300nm and length is 90-150nm. The preparation method comprises the following steps of: mixing and stirring a silver nitrate water solution, a citric acid water solution and water to obtain a mixed solution, and injecting a sodium borohydride water solution into the mixed solution and stirring and aging to obtain a silver seed crystal solution; then coating the silver seed crystal solution onto the conductive substrate and then airing the conductive substrate; and then putting the conductive substrate which is coated with silver seed crystals and is used as a cathode in electrolyte consisting of the silver nitrate water solution and the citric acid water solution, and carrying out electro-deposition for 5-120 minutes under the constant current of which the current density is 0.1-1mA / cm<2> to obtain the target product. The film disclosed by the invention can be used as an SERS (Surface Enhanced Raman Scattering) active substrate to rapidly detect the content of trace rhodamine 6G or tetrachlorobiphenyl-77 attached onto the SERS active substrate.

The invention discloses a condiment, in particular to a special flavor diced meat oily chili and a preparation method thereof. The special flavor diced meat oily chili comprises the following raw materials of: by weight, 900-1000 parts of vegetable oil, 200-300 parts of chili sauce, 30-50 parts of fermented bean curd, 10-20 parts of bean paste, 2-4 parts of liquor, 40-60 parts of monosodium glutamate, 30-40 parts of salt, 3-5 parts of green prickleyash and 100-200 parts of special diced meat. the preparation method comprises the following steps of: a, preparing the materials; b, cooking chilli and taking out after boiling in water for 4-6 minutes; c, striking chili sauce; d. making the special diced meat, adding fermented bean curd, bean paste, monosodium glutamate, salt and liquor into the special diced meat, pickling for 20 minutes, and frying to crisp; e, stir-frying chili sauce, fermented bean curd and bean paste by using vegetable oil, adding liquor, green prickleyash and salt, adding the special diced meat, and frying; and f, cooling and packaging. The special flavor diced meat oily chili provided by the invention has advantages of superior materials and sophisticated production. The preparation method is scientific, reasonable and practical. The produced special flavor diced meat oily chili is unique in flavor, has a style of its own, and has excellent color, flavor, taste and shape.

The invention discloses a ferroferric oxide nano-composite particle and a preparation method and applications thereof. The composite particle is a ferroferric oxide nano-composite particle with the particle size of 10-30nm, and 1,4-dihydroxy anthraquinone and fluorenylmethoxycarbonyl are modified on the surface of the ferroferric oxide nano-composite particle. The preparation method comprises the steps of: firstly, carrying out a hydrothermal method on ferric trichloride hexahydrate, sodium acetate, 1,6-hexanediamine and ethanediol to obtain the ferroferric oxide nano-composite particle, then producing 1,4-dihydroxy anthraquinone, chloroacetyl chloride, and N,N-dimethylformamide into dyes, then adding the ferroferric oxide nano-composite particle, sodium carbonate and the dyes into acetonitrile to carry out a reflux reaction, carrying out solid-liquid separation, washing and drying on the obtained reaction liquor to obtain an intermediate product, then dispersing the intermediate product into the N,N-dimethylformamide, adding dispersion liquid into the fluorenylmethoxycarbonyl, stirring for 2 hours, and carrying out solid-liquid separation, washing and drying to obtain a target product. The ferroferric oxide nano-composite particle can be used for fast detecting four heavy metal ions, namely copper, zinc, cadmium and mercury in an aqueous solution.

The invention discloses a nanostructure tungsten-zirconium carbide alloy. The nanostructure tungsten-zirconium carbide alloy comprises the following components by weight percentage: 98-99.8% of tungsten, and 0.2-2.0% of zirconium carbide with the grain diameter of 5-300 nm, wherein the zirconium carbide grains are mostly uniformly distributed in the interiors of the tungsten crystal grains. The invention further discloses a preparation method of the alloy. The prepared alloy has good mechanical property and high-temperature stability; the zirconium carbide nanograins can be uniformly distributed in the interiors of the tungsten crystal grains, so that stress concentration and embrittlement generated by coarse particle in the tungsten crystal grains are avoided; the strength and high-temperature performance can be improved by pinning dislocation, and meanwhile, the toughness is ensured.

A preparation method for a biomass-based hollow carbon microtube / Ni-Co metal sulfide composite electrode material comprises the following steps of selecting clean and dried biomass catkins; placing the biomass catkins in a tubular carbonization stove; introducing inert gas as protective gas; carrying out high-temperature processing to prepare hollow carbon microtubes; selecting and dissolving nickel acetate, cobaltous acetate and thiourea in an organic solvent to prepare a mixed solution; adding the hollow carbon microtubes into the mixed solution, fully stirring and uniformly mixing the solution; carrying out hydrothermal reaction; naturally cooling the solution to room temperature after the reaction; and carrying out centrifuging, filtering, washing and drying to prepare the hollow carbon microtube / Ni-Co metal sulfide composite electrode material. The preparation method has the advantages of high specific capacity and excellent rate characteristic.

The invention discloses a nano-composite coating with low surface energy and a preparation method thereof. The nano-composite coating consists of a transition layer and a surface layer, wherein the thickness of the transition layer is between 2 and 200 mu m, and the transition layer consists of more than one layer of mixture of bulbs, clubs and flakes; and the thickness of the surface layer is between 2 and 40 mu m, and the surface layer consists of a reticulated silica glassy substance. The method comprises the steps of: performing cleaning and roughing treatment on the surface of a substrate first, then mixing the bulbs, the clubs, the flakes, a slurry forming agent and a solvent to obtain slurry of the transition layer, using the slurry of the transition layer to coat the substrate, placing the coated substrate at a temperature of between 180 and 250 DEG C to obtain the transition layer, then mixing organosiloxane water solution and alcohol solution of ethyl orthosilicate to obtain hydrolytic polycondensation reaction solution first, then dripping acid into the hydrolytic polycondensation reaction solution to obtain coating solution of the surface layer, coating the substrate coated with the transition layer by the coating solution of the surface layer, and then placing the substrate at a temperature of between 180 and 250 DEG C to obtain the nano-composite coating with low surface energy. The coating has the characteristics of low surface energy, high density, adjustable hardness, good flexibility and strong adhesion force.

The invention provides a degradable straw seedling tray and a production method thereof. The degradable straw seedling tray comprises, by weight, 8-12 parts of waste paper pulp, 8-12 parts of bamboo pulp, 56-84 parts of straw powder, 1-2 parts of biological glue, 1-2 parts of microelement complex fertilizer and 80-120 parts of water which are all pressed and moulded after stewing and mixing. The degradable straw seedling tray and the production method thereof have the advantages of being moderate in hardness, portable, environment-friendly in material, easy to degrade and reusable, and the straw seedling tray can be absorbed by crops as base fertilizer; by the application of the stray seedling tray, the germination rate of the crops is high, roots of seedlings are long, density and root-shoot ratio of the roots are obviously increased, and the survival rate of the cultivated seedlings after planting is high; the production method is scientific and simple, adding of any other chemical raw materials or fertilizer is not needed, characteristics of the raw materials are sustained, and certain fertilizer effect is achieved.

The invention discloses novel electrolyte of a lithium-ion battery and the preparation method thereof. When the negative pole piece of the lithium-ion battery is in a high voltage state, the electrolyte comprises the following raw material components by weigh percentage: 75 to 85 percent of organic solvent, 10 to 15 percent of lithium salt and 5 to 10 percent of additive, wherein the additive comprises an organic compound, which can form a good SEI (Solid Electrolyte Interface) film in the battery; and the amount of the added organic compound is 0.1 to 3 percent of the total weight. The preparation method comprises the following steps: a, providing a glove box filled with argon, of which the concentration of H2O is less than 100 ppm; b, weighing the organic solvent, the lithium salt and the additive according to corresponding weight; and c, adding the organic solvent, the lithium salt and the additive into the glove box sequentially, and then stirring sufficiently and uniformly to obtain the electrolyte of the lithium-ion battery. According to the invention, after the organic compound is added, the infiltration effect of the electrolyte to high voltage real negative pole material is improved, and in addition, a good SEI film can be formed by the electrolyte to improve the stability of the electrolyte.

The invention discloses a preparation method for a silver nanoparticle chain. At first, an aluminum sheet is processed through an anodic oxidation method so that a through-hole alumina template is obtained; a gold film is plated on one side of the through-hole alumina template in an evaporated mode and then the through-hole alumina template is used as a negative pole and placed in silver electrolyte and bismuth electrolyte respectively for multiple times of alternative electrolytic depositions, so that the alumina template is obtained, wherein the through holes of the through-hole alumina template are placed with the silver cylinders and the bismuth cylinders, the silver cylinders and the bismuth cylinders are connected alternatively and one side of the alumina template is plated with the gold film; then the alumina template is soaked in aqueous alkali, so that a nanowire array which is formed by the alternative connection of the silver cylinders and the bismuth cylinders is obtained; and then the nanowire array is placed in ethylalcohol for ultrasonic dispersion, so that a nanowire which is formed by the alternative connection of the silver cylinders and the bismuth cylinders is obtained; and the nanowire which is formed by the alternative connection of the silver cylinders and the bismuth cylinders is placed in an environment with a vacuum degree<=10 Pa to 3 Pa and a temperature 450 DEG C to 500 DEG C to be annealed for 2 hours to 6 hours, so that a target product is obtained. The preparation method for the silver nanoparticle chain has the advantages of being simple in process, low in cost, high in practical value, and capable of being widely used in the preparation of one-dimensional nanoparticle chains of various metal materials.

The invention discloses a magnetic sensor with huge magnetoresistance and a preparation method thereof. The sensor comprises a substrate (1), an insulating layer (2) on the substrate, a ferromagnetic layer (4) wrapped with a conductive layer (5). In particularly, a loop (3) is coated on the ferromagnetic layer (4) wrapped with the conductive layer (5), and the loop (3) and the ferromagnetic layer (4) are both covered by the insulating layer (2). The method is realized by respectively repeated adoption of technologies, including mask, lithography or ion etching, DC magnetic control sputtering, magnetic control sputtering of radio frequency or improving chemical vapor deposition with plasmas, and processing technology of a semiconductor membrane in sequence to carve, sputter and generate a lower lead layer of the loop, a lower insulating layer, the magnetoresistance sensor comprising the ferromagnetic layer, the conductive layer and another ferromagnetic layer, a medium insulating layer, a vertical lead of the loop, an upper lead layer of the loop, and an upper insulating layer on the substrate. Afterwards, the lower lead layer, the vertical lead and the upper lead layer of the loop are electrically connected, thus obtaining the magnetic sensor with huge magnetoresistance. The invention has high precision and sensitivity and is beneficial for industrial production.

The invention relates to a half artificially fed cabbage moth feed and a preparation method thereof. The feed is prepared by mixtures A, B and C, agar and distilled water, wherein the mixture A comprises casein, sucrose, malt meal and wild cabbage powder; the mixture B comprises cellulose, para hydroxybenzoic acid, potassium sorbate and Watkins salt; the mixture C comprises vitamin C, streptomycin sulphate, propyl gallate, vitamin B complex, edible vegetable oil, potassium hydroxide and formalin. The preparation method comprises the following steps: components of the mixture A, B and C are respectively put into a container; 5 / 6 of the distilled water and the agar powder are added into the container for heating and stirring to thawing; the mixture A is poured into the agar liquid and stirred until uniformity; the mixture B is added and stirred until uniformity; the rest distilled water is added, and the mixture C is added when the temperature is decreased to 70 DEG C, and then stirred until uniformity; the obtained product is filled into moth feeding cups; after the surface moisture is dried, the cups are put into a refrigerator for storage. The preparation method and the feed of the invention are scientific, simple, and easy to standardize propagation the cabbage moth indoors with large scale; the cabbage moth fed with the feed has high larva survival rate, orderly development and sound growth; and the descendants of the cabbage moth have high hatching rate.

The invention relates to a traditional Chinese medicine for treating the chronic pulmonary heart disease. The traditional Chinese medicine comprises the following raw materials, by weight, 10-15 parts of ginseng, 10-15 parts of Radix Ophiopogonis, 10-15 parts of Chinese magnoliavine, 10-15 parts of Rhizoma Atractylodis Macrocephalae, 10-15 parts of Sappanwood, 5-8 parts of Cassia Twig, 10-15 parts of Radix Astragali, 10-15 parts of Salvia miltiorrhiza, 10-15 parts of salted aconite root, 8-12 parts of Tokay Gecko, 10-15 parts of epimeddium, 10-15 parts of Chinese yam, 10-15 parts of bitter apricot kernel, 10-15 parts of Malaytea Scurfpea Fruit, 10-15 parts of Pepperweed Seed, 10-15 parts of Stemona sessilifolia, 10-15 parts of Poria cocos, 10-15 parts of peach kernel, 10-15 parts of Common Coltsfoot Flower, 5-8 parts of fried licorice, 10-15 parts of lumbricus and 10-15 parts of Herba Houttuyniae. The traditional Chinese medicine for treating the chronic pulmonary heart disease of theinvention has the advantages of simple preparation method, easily controlled quality, high cure rate, difficult recurrence, and no toxic side effect.

The invention discloses an expanded graphite modified injection molding grade ultra-high molecular weight polyethylene and a preparation method thereof. The polyethylene comprises ultra-high molecular weight polyethylene, high density polyethylene and expanded graphite with the weight ratio of (60-100):(5-50):(1-10). The preparation method comprises steps of adding the ultra-high molecular weight polyethylene, high density polyethylene and expanded graphite into a rubber and plastic internal mixer for internal mixing, then crushing by a crusher, finally extruding and pelletizing. As the expanded graphite is stripped at high load and high shearing speed, nano dispersing expanded graphite can be obtained and can form a continuous, uniform and stable lubricant membrane with a matrix, so as to play a lubricant role in ultra-high molecular weight polyethylene composite, energy transfer between polyethylene chains can be improved, the ultra-high molecular weight polyethylene chains relatively slide easily, and the fluidity of the ultra-high molecular weight polyethylene is improved. Furthermore, the expanded graphite is beneficial to lowering the friction coefficient and improving the abrasive resistance of the composite.

The present invention discloses an ordered structure array of two-dimensional hollow balls and a preparing method thereof. The array is a single-layer hollow ball array which is provided with an ordered hexagonal arrangement on a substrate. The outer diameter of each hollow ball in the single-layer hollow ball array is 220nm-10.8mu m. An outer surface of each ball is a rough surface. Each hollow ball is composed of a gold metal inner surface and metal gold or polypyrrole or zinc oxide which is coated on the gold metal inner surface. The rough surface is composed of particle-shaped objects or vertical rod-shaped objects. The method comprises the following steps: performing ion sputtering on a conductive substrate which is provided with a single-layer colloid crystal template for depositinga gold film and obtaining a gold film wall array; then placing the conductive substrate which is adhered with the gold film array into electrolyte; performing electrodeposition for 10s-3h with a deposition current density of -1.0-1.0Ma / cm2 for obtaining a complex array; then placing the complex array into a dichloromethane solvent for removing polystyrene colloid balls and preparing the ordered structure array of the two-dimensional hollow balls. The ordered structure array of the two-dimensional hollow balls can be widely used for the following fields: medicament engineering, cosmetic, biotechnology, photocatalysis, photonic device, etc.