47results about How to "Suitable for commercial mass production" patented technology

The invention provides a plastic non-chrome roughening treatment method and a water-saving electroplating method thereof. A plastic workpiece is put into a non-chrome roughening solution to be treated; the surface of the treated plastic workpiece is coated with a binding force accelerant in a dipping manner; finally, the plastic workpiece is subject to plasma activation treatment. According to thetechnical scheme, the better interlayer binding force can be achieved between obtained plastic and a coating, the traditional electroplating process can be completely replaced, in the whole process that the surface of the plastic workpiece is electroplated with a chromium film, toxic chemicals of hexavalent chromium or trivalent chromium and the like are not used, the discharge amount of waste water can be 50% of or lower than the discharge amount of traditional electroplated water, the process is stable, commercial mass production is achieved, and the green surface treatment process with thewide prospect is provided.

The invention relates to a wet etching-based preparation method for a light trapping structure with Ag nanowires embedded into a silicon surface. The preparation method comprises the following steps of effectively dispersing the Ag nanowires in an ethanol solution by a low-power ultrasonic dispersion means; uniformly coating the dispersed Ag nanowires on a surface of a silicon wafer by a spin-coating mode; and improving contact between the Ag nanowires and the silicon wafer by an annealing mode. By etching of an etching liquid, the Ag nanowires are embedded into the silicon surface to prepare a novel light trapping, resistance reduction and efficiency improving structure. By the structure, the contact area between the Ag nanowires and the silicon surface is remarkably expanded, and meanwhile, the light trapping capability of the Ag nanowires in silicon is greatly improved within a visible light spectral range. The design and the preparation process provide a novel technical means for improving the efficiency of a device such as a silicon thin film solar cell and an LED.

The invention discloses a metformin hydrochloride sustained-release tablet and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The metformin hydrochloride sustained-release tablet comprises metformin hydrochloride, a sustained-release agent, an adhesive, filler, a flow aid, a lubricant and other components, wherein the sustained-release agent comprises sodium carboxymethyl cellulose and hydroxypropyl methyl cellulose K100M, the adhesive is hydroxypropyl methyl cellulose E5, and the ratio of the metformin hydrochloride to the sustained-release agent is 125:(80-120); and the ratio of the metformin hydrochloride to the adhesive is 125:(1.5-3.0), and the preparation process comprises the steps: spraying water, mixing the metformin hydrochloridewith sodium carboxymethyl cellulose, performing granulation so as to obtain particles, performing secondary water spraying, and adding hydroxypropyl methyl cellulose K100M at twice. The method is suitable for industrial production, the product quality is stable, and the obtained metformin hydrochloride sustained-release tablet has uniform and stable release.

The invention provides a preparation method of a high-conductivity solid-state battery electrolyte for an energy storage charging system battery, which comprises the following steps of (1) weighing lithium oxide, lanthanum oxide (La2O3) and zirconium oxide (ZrO2) as raw materials according to the mass ratio of (7-7.8): 3: 2, mixing to obtain a mixture, and performing ball milling on the mixture by using a high-speed ball mill to obtain mixed powder A, (2) putting the mixed powder A obtained in the step (1) into a crucible, putting the crucible into an atmosphere furnace, sintering, naturally cooling to obtain garnet type electrolyte Li7La3Zr2O12 (LLZO) precursor powder, taking out the precursor powder, and carrying out high-speed ball milling at the same rotating speed and time as that in the step (1) to obtain powder B, and (3) pressing the powder B obtained in the step (2) into an electrolyte sheet by using a tablet press, then putting the electrolyte sheet into a crucible, carrying out landfill sintering by using mother powder, and cooling to room temperature through two-stage sintering to obtain the LLZO solid electrolyte, so that the technical problem of low conductivity of the battery electrolyte of the energy storage charging system can be solved.

The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a sildenafil citrate chewable tablet and a preparation method thereof. The sildenafil citrate chewable tablet is prepared from sildenafil citrate, a filling agent, an excipient, a sweetening agent, a lubricating agent and a compound flavoring agent. According to the invention, dry granulation is carried out for many times, so that the taste of sildenafil citrate is covered; the medicine can be taken without water, and the patient compliance is high; meanwhile, the storage stability of the sildenafil citrate chewable tablet can be effectively improved.

The invention provides a fuel cell anode catalyst and a preparation method and application thereof. According to the preparation method, transition metal is used as a metal source, trioctylphosphine oxide is used as a reaction solvent, a reaction product is prepared through a colloid synthesis method, and then the reaction product and a carbon carrier are subjected to a load reaction to obtain theload type transition metal phosphide anode catalyst. The anode catalyst has high-alkalinity HOR activity and high stability, is relatively low in preparation cost, is suitable for commercial mass production, and has a huge application prospect in the field of fuel cells. Specifically, ruthenium acetylacetonate is used as a ruthenium source, trioctylphosphine oxide is used as a reaction solvent, and tri-n-octylphosphine is used as a phosphorus source. The anode catalyst Ru2P/C is prepared according to the preparation method. When the loading capacity of the anode catalyst Ru2P/C is 0.4mgcm<-2>, the peak power of 1.3Wcm<-2> (the current density is 3.0Acm<-2>) can be achieved under the conditions of 80 DEG C and the back pressure of 0.1Mpa. The mass ratio exchange current density (j<0, m>) of the anode catalyst Ru2P/C is 0.27mAmug<-1>, the area ratio exchange current density (j<0, s>) of the anode catalyst Ru2P/C is 0.37mAcm<-2>, and the mass ratio exchange current density and the area ratio exchange current density of the anode catalyst Ru2P/C respectively reach three times of those of the Ru/C.

The invention discloses an esomeprazole sodium freeze-dried preparation prepared by freeze-drying a liquid medicine which is prepared by dissolving esomeprazole sodium, alkaline amino acid and sodium hydroxide in water for injection, wherein the contents by mass volume ratio of the someprazole sodium, the alkaline amino acid and the sodium hydroxide are as follows: 20 mg/ml of the someprazole solidum, 0.5-5 mg/ml of the alkaline amino acid and the sodium hydroxide which adjusts the pH value of the liquid medicine within 11.0-12.0. As the alkaline amino acid is adopted as a stabilizing agent, amino bond existing in the alkaline amino acid can improve stability of the esomeprazole sodium in the processes of dissolution, freeze-drying, and storage. However, as alkaline amino acid is essential amino acid for a human body, the disclosed esomeprazole sodium freeze-dried preparation has higher safety in comparison with the existing esomeprazole sodium freeze-dried preparations which almost adopt edetic acid and salts of edetic acid as the stabilizing agent.

The invention relates to the technical field of energy materials, in particular to a positive electrode surface modification material and a preparation method thereof. The positive electrode surface modified material comprises a positive electrode material part, a doping layer and a coating layer which are sequentially superposed; the positive electrode material part comprises a positive electrode material; the doping layer comprises a positive electrode material and a doping element doped in the positive electrode material. A part of the chemical inert layer is converted into surface doping, so that migration of lithium ions at an interface can be accelerated. Therefore, the synergistic effect of coating and doping can greatly improve the cycling stability and rate capability of the ternary material at the same time.

The invention provides a novel lithium-sulfur battery material applied to an energy storage system, a preparation method adopting nitrogen-doped porous carbon fiber composite sulfur as a positive electrode material and a positive electrode plate of the positive electrode material. The preparation method of the composite positive electrode material comprises the following steps: mixing a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, tetraethyl orthosilicate, ethanol, concentrated hydrochloric acid and cyanoguanidine according to a molar ratio of (0.001-0.01): (0.03-0.4): (0.6-1): (0.01-0.1): (0.01-0.5), and stirring until the raw materials are completely dissolved to obtain a solution N; evaporating the solution N to dryness, and heating to obtain a sample E; cooling the product E, adding the product E into an acid solution for etching, and performing suction filtration and evaporation to dryness to obtain nitrogen-doped porous carbon nanofibers; and mixing the nitrogen-doped porous carbon nanofiber with elemental sulfur to obtain the elemental sulfur loaded nitrogen-doped porous carbon nanofiber composite positive electrode material. The material can solve the technical problems of low conductivity of battery positive elemental sulfur and short charge-discharge cycle life of the battery caused by dissolution of polysulfide in electrolyte.

The invention discloses a coin sorting and classifying device. A note and coin sorting mechanism is arranged on the upper portion of a rack, a coin classifying mechanism is arranged on the lower portion of the rack, the note and coin sorting mechanism is located above the coin classifying mechanism, and a coil collection mechanism is laterally located below an output port of the coin classifying mechanism; the note and coin sorting mechanism is used for receiving mixed notes and coins from which the coins need to be separated out, the coin classifying mechanism classifies the coins, and the coin collection mechanism is used for storing the coins which are classified by the coin classifying mechanism. According to the coin sorting and classifying device, by using the characteristic that thecoins are smaller and lighter than the notes, the coins are separated through a screen mesh of the side surface of a box body, by using different diameters of the coins with different face values, the coins are classified according to the different track change conditions after the coins pass through a same baffle, note and coin separation and coin classification are achieved, and the classification precision and efficiency are high.

The invention discloses a new application of a yeast-like fungus pseudozyma fusiformata SF6 to inhibit downy mildew, particularly an application of a yeast-like fungus to inhibit a downy mildew disease, an application to prepare an inhibitor for a downy mildew disease, an application to inhibit a downy mildew pathogen, and an application to prepare an inhibitor for a downy mildew pathogen. The bioassay experimental results through a leaf disk assay show that the yeast-like fungus pseudozyma fusiformata SF6 can effectively inhibit the downy mildew of grapes. Through application of the yeast-like fungus pseudozyma fusiformata SF6 to inhibit the downy mildew of grapes or to prepare an inhibitor of the downy mildew disease of grapes, the environmental pollution brought by chemical agents can be reduced. The fungus is fast in growth speed and simple in nutrition, generates no toxin or antibiotics, and is relatively safe. The fungus generates no sensitizing spore, is suitable for commercial mass production, and is low in cost.

The invention relates to a preparation method of an upright Au nanocone with high adhesion to the surface of a substrate. The preparation method comprises the following steps: corroding a large numberof nanoscale corrosion holes in the surface of a silicon wafer; evaporating Au on the surface of the silicon wafer, and further forming a large-scale Au-Si binary alloy welding point at the Au-Si interface in the etching hole through annealing to serve as a nano-sized clamping end; and preparing the Au nanocone on the surfaces of the Au foil and Si through mechanical separation. According to thestructure, the binding force of the Au nanocone and the substrate is remarkably improved, and a new technical means is provided for improving the device stability and prolonging the service life of anSERS detector and a solar cell. The design and preparation process disclosed by the invention has no special condition requirements, is easy to operate and simple in equipment requirements, and is particularly suitable for commercial large-scale production.

The invention relates to a high-uniformity and high-power laser epitaxial wafer and a preparation method thereof. An upper waveguide layer and a lower waveguide layer between a GaAsP quantum well and a GaInP limiting layer are each composed of a GaAsP waveguide layer with gradually-changed P components and a GaAsP waveguide layer with fixed components. The GaAsP component gradient waveguide layer and the GaAsP fixed component waveguide layer not only can play a role in limiting electrons and light fields, but also can well eliminate redundant elements in the reaction chamber before and after the growth of the quantum well, thereby providing a clean environment for the growth of the quantum well, and avoiding the change of parameters such as wavelength, stress, uniformity and the like of an epitaxial wafer due to the influence of background doping. GaAsP is adopted as a quantum well material, the defects that an aluminum-containing active region is prone to oxidation and dark line defects are generated are overcome, the GaAsP quantum well can control the magnitude of tensile strain by controlling the proportion of As to P so as to reduce the threshold value, and TE single-mode output is achieved.