145results about How to "The preparation method is feasible" patented technology

The invention relates to a secondary lithium ion battery positive active material with the surface coated with Li2O-2B2O3 as well as a preparation method thereof designed for solving the technical problem of electrochemical stability of the existing secondary lithium ion battery under high temperature. The positive active material has the design points: the transition metal lithium oxide particle positive active substance with the surface coated with Li2O-2B2O3, a conductive agent and a binder are present in weight percentages of: 96 to 10 percent, 2 to 5 percent, and 2 to 5 percent respectively. The preparation method comprises: LiOH-H2O, H3BO3 and transition metal oxides are under ball-mill mixing in a certain proportion, wherein, LiOH-H2O and H3BO3 are present in a molar ratio of 1: 2-1: 1, and the secondary calcination method is adopted to obtain a transition metal lithium oxide particle with the surface coated with Li2O-2B2O3. The surface physical and chemical characters of the positive active material are changed, and the preparation method is feasible and is applied to the development and application of similar products.

The invention discloses a preparation method of silver-loaded activated carbon, which comprises the steps that raw carbon is washed with dilute nitric acid and then with clear water, the carbon is immersed into a silver nitrate aqueous solution and dried after being soaked, a reduction solution is prepared with ammonia water and organic acid, the dried carbon is poured into the reduction solution for stirring, wet silver-loaded activated carbon is obtained after cooling, and the silver-loaded activated carbon is obtained after drying. According to the preparation method, as the raw carbon is washed with the dilute nitric acid and then with the clear water, impurity elements on an inside wall of a raw material to be loaded with silver are removed, so that silver ions can enter the porous inside wall of the raw activated carbon smoothly. With the adoption of the reductant prepared by the ammonia water and the organic acid, the silver ions are reduced to element silver, and the element silver is firmly adsorbed into the internal pores of the activated carbon, and completely loaded into the activated carbon. The preparation method has the advantages that no pollution is caused, the price is low, the preparation method is feasible and the cost is low. The silver-loaded activated carbon prepared by the method can effectively sterilize drinking water in the purification process, and ensures that silver in the water is not over proof. In addition, the activated carbon has a long service life.

The invention discloses a preparation method for a low-temperature nanometer lithium iron phosphate cathode material. The preparation method comprises the following steps of: adding a lithium source compound, a ferric source compound, a phosphorous source compound and water according to a proportion for mixing, adding metal ion doped oxide and a primary carbon source for mixing, performing primary high-energy superfine pulverization for 2 to 3 hours, performing spray-drying to obtain powder, and performing sieving; pre-treating the powder in an inert atmosphere at the temperature of 300 to 500 DEG C for 2 to 10 hours, performing cooling, adding a secondary carbon source and water, stirring the mixture, performing secondary high-energy superfine pulverization to obtain spherical powder, and performing sieving; and performing jet milling on the spherical powder, performing treatment in the inert atmosphere at 500 to 600 DEG C for 6 to 30 hours, performing thermal treatment at the high temperature of 600 to 900 DEG C for 10 to 30 hours, and performing cooling to obtain the low-temperature nanometer lithium iron phosphate cathode material with the granularity of 60 to 70 nanometers. When the low-temperature nanometer lithium iron phosphate cathode material is used for manufacturing the anode of a lithium ion battery, the battery has high low-temperature discharge performance.

The invention relates to amphiphilic macromolecular modified oil-soluble nuclear/shell quantum dots and a preparation method. A nuclear layer is of CdSe quantum dots; and a shell layer comprises CdS, an alloy layer, ZnS, an amphiphilic polymer layer from the inside to the outside in turn. The structure of the alloy layer is: Cd0.4Zn0.6S, Cd0.45Zn0.55S or Cd0.6Zn0.4S; the structure of the amphiphilic polymer layer is that: an inner layer is an alkyl chain hydrophobic layer; a connecting layer is aliphatic long carbon chains; and an outer layer is a carboxyl hydrophilic layer; and the particle size range of the quantum dots is between 200 and 1,000 nm. By covering different shell layers with appropriate thickness on the surface of the CdSe nuclear quantum dots, the nuclear/shell quantum dots with high fluorescence efficiency and stable fluorescent properties are synthesized; by performing self-assembly water-solubility modification on self-made amphiphilic polymer and amphiphilic polymer, a formed amphiphilic polymer layer protects the surface structure and fluorescence properties of the nuclear quantum dots, can restrain cadmium ions and selenium ions from diffusing outwards and reduces the toxicity of the quantum dots to organisms; and the modified quantum dots cannot generate fluorescence resonance energy transfer in multi-flux detection.

The invention relates to a polydimethylsiloxane array micropore film preparation method, and belongs to the field of micro-electro-mechanic manufacturing. The method comprises: 1, coating a layer of an SU-8-2005 photoresist on the surface of a mold lower substrate (11) to form a pretreatment thin photoresist layer (10); 2, coating an SU-8 photoresist on the surface of the pretreated mold lower substrate (11) to form an SU-8 micro group column structure (9); 3, manufacturing a micro group column channel mold; 4, placing the micro group column channel mold into a film production container (4), and pouring a PDMS glue (6) into the container; 5, adopting a vacuum pumping manner to fill the PDMS glue into the micro group column channel so as to complete mold injection; 6, carrying out colloidal curing; and 7, separating the cured PDMS glue from a mold upper substrate (7) and the lower substrate (11). The prepared micropore film can be used for electrolytic machining so as to significantly improve locality and micro-scale processing capacity of mask electrolytic machining.

The invention discloses a brown lactobacillus beverage. The brown lactobacillus beverage is prepared from the following raw materials in parts by weight: 3-30 parts of brown fermented milk, 0-20 parts of white granulated sugar, 1-10 parts of fruit juice or fruit granules, 0.01-1.5 parts of sweet material, 0.01-5 parts of sour material, 0-1 part of stabilizer and 0.01-0.5 part of edible essence. In the invention, browning is performed by producing glucose through enzymolysis instead of additionally adding glucose, so that the calorie of the product is effectively reduced. In addition, the sweet material is reasonably added instead of white granulated sugar, so that the calorie of the product is further reduced. The product disclosed in the invention is fresh and cool with low calorie, which meets the requirements of current young groups, and has very good market prospect.

The invention discloses a compound microorganism silage additive and an application to preparation of grain amaranth silage. The compound microorganism silage additive comprises an enzyme and bacteria compound and an amaranth root extract, enzyme in the enzyme and bacteria compound comprises cellulase, hemicellulose, amylase, pectinase, protease and the like, bacteria in the enzyme and bacteria compound comprise a lactobacilli flora, a bacillus thuringiensis group, photosynthetic bacteria, a yeast flora, an actinomycete group, filamentous bacteria and the like, and main components of the amaranth root extract include plant sterol, polysaccharide, oleanolic acid, flavonoid, triterpenoid saponins, organic acid and the like. Compared with a conventional silage additive, the compound microorganism silage additive is good in fermentation effect and palatability. The grain amaranth silage is prepared from the compound microorganism silage additive, the potential advantage of raw materials serving as green feed can be effectively improved, daily gain can be remarkably increased, feed-meat ratio is increased, animal growth is promoted, and the grain amaranth silage can be widely used for livestock and poultry breeding and aquaculture.

The invention provides a traditional Chinese medicine compound preparation for preventing and treating vaginitis and a preparation method thereof. The traditional Chinese medicine compound preparation comprises the following main raw materials in parts by weight: 50-70 parts of biological peptide, 15-28 parts of kuh-seng, 10-20 parts of cortex phellodendri, 10-20 parts of fructus cnidii, 5-10 parts of mint, 3-8 parts of chitosan, 5-30 parts of carbopol 940, 40-60 parts of glycerol, 2-5 parts of sodium hydroxide and 15-30 parts of mint oil. The biological peptide and traditional Chinese medicines are mixed and complementary mutually, can adjust balance, inhibit bacteria, purge fire for removing toxin, sterilize, resist inflammations, clear heat, dry dampness, dispel the wind, and kill parasites. Compared with the available preparation for preventing and treating the vaginitis, the traditional Chinese medicine compound preparation adopts a principle of mainly adjusting the balance, sterilizing and resisting the inflammations, and auxiliarily purging the fire for removing the toxin, clearing the heat, drying the dampness, dispelling the wind and killing the parasites, and is used for improving an acid environment in a vagina, inhibiting and eliminating the growth of the harmful bacteria, detoxifying, eliminating the dampness and diminishing the inflammations, so that the purpose of preventing and treating the vaginitis is achieved; and the preparation method is stable, practicable, controllable and applicable to mass production.

The invention belongs to the technical field of phosphotungstic heteropoly acid preparation, and particularly relates to a preparation method and application of load type phosphotungstic heteropoly acid with weak water solubility. The invention provides a method for preparing phosphotungstic heteropoly acid by dilute acidification stirring type modification; the method has the advantages that normal temperature and pressure are adopted for preparation conditions, any organic solvent is not used, the operation is simple, and the energy consumption and the cost are low; the prepared phosphotungstic heteropoly acid is small in water solubility, great in specific surface area and higher in catalytic activity. As an acid site on the surface of the phosphotungstic heteropoly acid having catalytic activity and phosphotungstic heteropoly acid redox carriers (e and II<+>) are diffused, oxidation is generated with biomass plant tissue under a hydrothermal condition; the phosphotungstic heteropoly acid is mainly applied to catalysis, biology, medicines, materials and other aspects, such as waste biomass catalytic degradation and toxic and harmful (waste) gas and sewage (wastewater) treatment in chemical industry production; a chelate of the phosphotungstic heteropoly acid has an anticancer effect, and also can be applied to electrode materials. The prepared load type phosphotungstic heteropoly acid is used for catalytically strengthening degradation of perilla stem, thus realizing efficient conversion of biomass.

The invention discloses a flame-retardant degradable antibacterial polylactic acid elastic fiber. The flame-retardant degradable antibacterial polylactic acid elastic fiber is prepared from the following raw materials in parts by mass: 100 parts of polylactic acid, 5 to 10 parts of maleic anhydride grafted compatilizer, 1 to 2 parts of tert-butyl peroxybenzoate, 8 to 12 parts of antibacterial agent, 5 to 8 parts of citric acid, 10 to 16 parts of tert-butyl alcohol, 2 to 5 parts of vinyl polydimethylsilane, 0.2 to 0.5 part of phosphite, and 10 to 18 parts of flame-retardant agent; the antibacterial agent is prepared from the following components in parts by mass: 20 parts of nanometer cerium oxide, 75 parts of nanometer zinc oxide, and 5 parts of modified activated carbon; the flame-retardant agent is prepared from the following components in parts by weight: 15 to 25 parts of phosphate, 5 to 10 parts of cobalt oxide, and 20 to 30 parts of diammonium phosphate. The flame-retardant degradable antibacterial polylactic acid elastic fiber has the advantages that the raw materials are non-toxic or are basically non-toxic, and the green chemical principle is met; the effects of degradability, large elasticity, good flame-retardant effect and antibacterial property are realized; the whole preparation method is simple and feasible.

The invention discloses a novel hole transport material, and a preparation method and application thereof. The structural formula of the novel hole transport material is disclosed as Formula (I), wherein R1-R28 are respectively hydrogen (H) or methoxy group (OCH3). The novel hole transport material has the advantages of low preparation raw material cost and simple and convenient synthesis method. The test on optical and physical properties, electrochemical properties and heat stability indicates that the synthesized hole transport material has favorable properties and has matched energy level with perovskite, which indicates that the synthesized hole transport material can be applied to perovskite solar cells and has favorable heat stability. The novel hole transport material is made into a perovskite solar cell device; and the photovoltaic property test indicates that the maximum photoelectric conversion efficiency can reach 11.3%, and therefore, the hole transport material has excellent application prospects.

The invention discloses a method for preparing iron-containing hydrotalcite-like compound by utilizing prussian blue pigment and divalent metal salt, and belongs to the technical field of preparation processes of inorganic nanometer materials. The method comprises the following steps of selecting the prussian blue as a raw material, mixing and dissolving with organic acid according to the constant proportion, and carrying out a coprecipitation reaction on divalent metal ions under an alkaline environment by utilizing Fe<3+> ions released by the prussian blue in the solution to prepare Fe<3+>-containing hydrotalcite-like compound, wherein grain size of the prepared Fe<3+>-containing hydrotalcite-like compound is uniformly dispersed in a nanometer level. According to the method disclosed by the invention, the prepared iron-containing hydrotalcite-like compound has the electrochemical property of the prussian blue, also has the electrochemical activity of the hydrotalcite-like compound, and has remarkably improved electrochemical property compared with the single-element hydrotalcite; and when the prepared iron-containing hydrotalcite-like compound is taken as a capacitor material, the cycle performance of the iron-containing hydrotalcite-like compound is subjected to a charge-discharge test, so that the iron-containing hydrotalcite-like compound has excellent reversible discharge capacity and stable cycle performance, and has large application potentiality in the electrochemical field.

The invention discloses a 2,4-dihydroxy-5,6-substituted-1-halogenobenzene derivative, a synthesis method and an application thereof, belonging to the field of pharmaceutical chemistry. The 2,4-dihydroxy-5,6-substituted-1-halogenobenzene derivative has the following structural general formula. The compound is of an active ingredient, and when the compound is applied to preparation of medicaments for treating, preventing or relieving complicating diseases and the like caused by obesity, the activity is better.

The invention provides a stabilization repairing agent for soil pollution, wherein the agent includes components such as quicklime, potassium dihydrogen phosphate, phosphate rock powder and demineralized and modified humic acid, and is prepared from, by mass, combination of the components. After the stabilization repairing agent is applied to soil contaminated by lead and cadmium and is subjectedto stabilized treatment and maintenance for one week, the concentration of lead and cadmium in a leach liquor of the soil can meet standards of groundwater quality class IV. The mixed component in thestabilization repairing agent of the invention fully exerts a synergistic effect, the effective state of heavy metals in the soil can be reduced by the action of precipitation, adsorption, improvement, pH adjustment, and the like, and the prepared soil repairing agent has good effects in repairing lead and cadmium contaminated soil. The stabilization repairing agent for the soil pollution has theadvantages of simple preparation method, feasibility and good treatment effect.

The invention relates to an antibacterial pressure-resistant double-layer cream bottle and a material preparation method thereof, which are designed for solving the technical problems that the structural design of a bottle body and a cover body in the existing similar products is not good enough and the material preparation method needs to be improved. A bottle body of the double-layer cream bottle comprises an inner bottle and an outer bottle. The bottle is characterized in that the outer diameter of the inner bottle below the outer threads of the inner bottle is provided with a protruding ring diameter, the outer diameter of the inner bottle below the ring diameter is provided with a buckling ring with the diameter smaller than the ring diameter, the outer diameter of the inner bottle below the buckling ring is provided with outer rotation stopping ribs which are smaller than the buckling ring in diameter and evenly distributed at equal intervals, and the outer diameter of the innerbottle on one side is provided with protruding bottle positioning ribs. A protruding ring buckling rib is arranged on the inner diameter of a bottle opening of the outer bottle, the inner rotation stopping ribs which are evenly distributed at equal intervals are arranged on the inner diameter of the bottom of the outer bottle, a bottle positioning groove is formed in the inner diameter of the outer bottle on one side of each inner rotation stopping rib, and when the bottle positioning ribs of the inner bottle are inserted into the bottle positioning grooves of the outer bottle, the buckling ring of the inner bottle is buckled with the ring buckling ribs of the outer bottle, and the outer rotation stopping ribs of the inner bottle are meshed with the inner rotation stopping ribs of the outer bottle.

The invention discloses vapor resistant silicone rubber, comprising the following components in parts by mass: 100 parts of crude rubber of which the vinyl molar content is 0.12%, 3-6 parts of crude rubber of which the vinyl molar content is 8.0%, 30-50 parts of hydrophilic gas phase silica and 0.2-0.4 part of stearic acid. The invention also discloses a preparation method of the vapor resistant silicone rubber. The method comprises the following steps: adding the crude rubber of which the vinyl molar content is 0.12% and the crude rubber of which the vinyl molar content is 8.0% to a kneading machine to stir for 0.2-0.4 minute; adding the hydrophilic gas phase silica and the stearic acid for a plurality of times, fully stirring after adding every time, so as to obtain a silicone rubber compound; and after discharging the rubber, cooling to room temperature, so as to obtain the vapor resistant silicone rubber. The silicon rubber prepared by the method simultaneously has the characteristics of vapor resistance, relatively good mechanical property and good processability by practical detection. The preparation method disclosed by the invention is simple, feasible and suitable for industrial production.

The invention belongs to production of enzymic preparations and particularly relates to a method for preparing diagnostic hexokinase. The method includes the process steps of purifying and rejuvenating a strain, preparing fermentation liquor containing hexokinase by fermentation and purifying the fermented crude hexokinase enzyme. The method for preparing the diagnostic hexokinase has the advantages that the problems that the diagnostic hexokinase with independent intellectual property is not available domestically, imported enzymic preparations are high in price and inconvenient to use and the like currently are solved, the method is reliable in strain source, feasible, suitable for industrialized production and capable of filling the blank that the diagnostic hexokinase with the independent intellectual property is not available domestically, and major performance indexes of the diagnostic hexokinase prepared by the method are superior to those of the imported products.

The invention discloses novel Cr < 3 + >-doped garnet structure near-infrared fluorescent powder and a preparation method of a near-infrared light source. The general chemical formula of the fluorescent powder is A3-yCayB2-x-zCzD3O12: xCr < 3 + >, aRE2O3 (0<x<0.5, 1 <= y < 3, 0< x + z < = 2, 0 < z < 1.5, and 0 < = a < = 0.5), wherein A is one or a combination of more of Lu, Y, Gd, La and the like;B is one or a combination of Mg, Zn, Cu, Ni, Fe, Co, Ti and the like, C is one or a combination of Sc, In, Al, Ga and the like, and D is one or a combination of Ge, Si, Ti, Sn and the like; RE is oneor a combination of more of Yb, Nd, Ce, Er and Pr; Cr<3 +> is luminescent ion. The prepared fluorescent powder can be effectively excited by blue light and ultraviolet light, and the packaged near-infrared light source has strong near-infrared broadband emission, so that the fluorescent powder can be widely applied to the fields of plant illumination, food detection and the like.

The invention relates to a method for manufacturing high content regenerated fiber automobile composite material, which adopts the steps: 1. 58-70% of polypropylene fiber, 2-0% of terylene and 40-30% of regenerated fiber are mixed according to the usage ratio weight percentage; 2. after being processed by opening and mixed for 3-5 times, the polypropylene fiber, the terylene and the regenerated fiber are evenly mixed together; 3. the evenly mixed fiber is carded, and the carded fibrous reticulum is compounded, and treated by prickling to be strengthened for 3-5 times; 4. the polypropylene fiber in a needled-punched felt is melted by hot rolling, thus forming a polypropylene complex strengthened by the regenerated fiber; the polypropylene complex is made into coiled material, and then is cut out to be an automobile felt. The method for manufacturing the automobile composite material is simple and feasible, and especially uses the regenerated fiber which is spinning waste with low price, thus reducing the total cost; the manufactured automobile felt has good uniformity.

The invention discloses a vinyl-triarylated amine conjugated charge transportation material and a preparation method thereof. The chemical structural formula of the vinyl-triarylated amine conjugated charge transportation material is shown in the formula (I). According to the charge transportation material, the raw materials used are low-cost, the synthesis method used is simple and convenient, the photophysical property (ultraviolet and fluorescent) test, electrochemical performance test and thermal stability test of the synthesized material show that the charge transportation material has good performance and excellent thermal stability, the energy level can be matched with that of a perovskite material, and the charge transportation material can be applied to perovskite solar batteries.

The invention relates to a medical beating apparatus and a manufacturing method thereof, in order to solve the problems of like products which, although taking a certain effect on beating parts and pulse positions of a body, fail to achieve an ideal bodybuilding purpose due to different structures. The medical beating apparatus provided by the invention is subject to two design schemes. The medical beating apparatus of both the first design scheme and the second design scheme comprises a beating frame and a beating layer, wherein the beating frame is covered by the beating layer and an outer layer, and the beating layer is composed of a cotton yarn layer and a gauze layer; according to the first design scheme, the medical beating apparatus has a beating net, while according to the second design scheme, the medical beating apparatus is not provided with the beating net. The medical beating apparatus disclosed by the invention has the advantages that the beating apparatus is reasonable in structural design and is relatively accurate to beat the pulse positions in the body; the manufacturing method is feasible, and the medical beating apparatus can take a certain positive effect and can achieve a function of boosting immunity. Meanwhile, the medical beating apparatus is also suitable for the technical transformation of existing like products, and the beating apparatus is capable of taking a positive enlightening role.