152results about How to "Stable manufacturing process" patented technology

The utility model relates to a water-based acrylic resin paintand the manufacturing method. The basic ray materials comprise acrylic monomer, styrene monomer, initiator, cosolvent, and active solvent. The utility model is characterized in that the acrylic monomer comprises acrylic derivative with hydroxyl; the cosolvent is ether alcohol solvent; the active solvent is butyl carbonate ethylene derivative active solvent; the initiator is peroxide initiator; and the neutralizer is Amine neutralizer. The resin is manufactured through two-step process. In the first step, water-based acrylic resin prepolymer is manufactured and is then manufactured into resin latex through inner emulsification on the second step. The product is of long storage time and is of no added emulsifier. Under the room temperature, the product can cross-link with water-based isocyanate curing agent to form membrane. The utility model is of excellent membrane, good water resistance, anti-scrubbing property, chemical resistance and sullying resistance.

An optoelectronic semiconductor device includes a substrate, a semiconductor system having an active layer formed on the substrate and an electrode structure formed on the semiconductor system, wherein the layout of the electrode structure having at least a first conductivity type contact zone or a first conductivity type bonding pad, a second conductivity type bonding pad, a first conductivity type extension electrode, and a second conductivity type extension electrode wherein the first conductivity type extension electrode and the second conductivity type extension electrode have three-dimensional crossover, and partial of the first conductivity type extension electrode and the first conductivity type contact zone or the first conductivity type bonding pad are on the opposite sides of the active layer.

The present invention discloses a method for detection of foot-and-mouth disease virus with chromatographic strip test. Firstly, the nucleic acid sequence of FMDV NSPs is set up, the nucleic acid sequence is amplified by the reverse transcriptase polymerase chain reaction (RT-PCR) method, the recombinant vector is constructed and performed through a prokaryotic system to transform and express the recombinant protein, and the purified recombinant protein is mass produced. Design principles of the method are based on immunoassay and chromatographic analysis. The advantages are easy and simple to handle, no need of elaborate equipment, only one drop of body fluid is required to quickly complete the qualitative test in 10-20 minutes, and operating with a portable POCT (Point of care testing) instrument to complete the quantitative detection within 40-50 minutes.

The invention discloses lenalidomide composition tablets and a preparation method thereof. The tablets comprise components in percentage by weight as follows: 10%-18% of lenalidomide crystals, 28%-40% of lactose, 28%-40% of microcrystalline cellulose, 1%-5% of konjac glucomannan, 10%-15% of beta-cyclodextrin, 5%-10% of sodium carboxymethyl starch, 0.5%-1.5% of sodium stearyl fumarate and 0.5%-1.5% of powdered cellulose. The preparation technology of the lenalidomide composition tablets is stable, simple and easy to operate, technological parameters are reliable, and the production cycle is shorter; experimental research shows that the lenalidomide raw material is stable in crystal form, higher in purity and capable of meeting the quality requirement of final products; the synthesis technology is concise, stable, feasible and applicable to mass production; the quality is controllable, the stability is better, and the lenalidomide raw material is unchanged under conditions of affecting factors such as the high temperature, high humidity and 10 days of illumination and is stable after being stored for 6 months under the acceleration condition.

The invention discloses a preparation method of a graphene supported ferriferrous oxide nanocomposite, comprising the following steps: preparing a precursor by deposition precipitation method, depositing ferric nitrate ninehydrate or ferric chloride hexahydrate on graphene in the form of iron hydroxide by using sodium hydroxide or ammonia to obtain black powder, washing and drying the obtained black powder, grinding the dried black powder, then calcining under the protection of argon, and then cooling, and reducing under the protection of a mixed gas of argon and hydrogen or argon and ammonia gas to obtain the graphene supported ferriferrous oxide nanocomposite. The preparation method is simple and stable. In the obtained composite, ferriferrous oxide is uniformly distributed on graphene and has good interface combination of the substrate graphene, thus the absorbing properties and the like of the composite as a functional material can be improved. The method also can be used for preparing carbon material supported ferriferrous oxide nanocomposites with different substrates by using carbon nanotube, graphite oxide and other carbon materials as the substrate.

The invention discloses a miniature solid or hollow silicon needle, a silicon needle array and the manufacture method, belonging to the medical service and hairdressing apparatus and micro machining technical field. The lower end of the miniature silicon needle head is column. The upper needle point of the needle head is provided with at least one arc sharp corner to form the peak. A through hole is arranged on the peak and is connected with the inverse triangle groove at the bottom. By micro-electronics craft, at the positive and the back surfaces of the (110) crystal orientation monocrystalline silicon wafer, two kinds of inverse triangle grooves are processed in batches which are formed by six silicon (111) surfaces, using the anisotropism self-stop wet corrosion. Then the silicon needle and a through hole are manufactured by the DRIE method. The through hole is connected with the back inverse triangle groove. The invention has the advantages that: the solid or hollow silicon needle array can be manufactured in batches with low cost, high productivity and firm structure; the invention has a wider potential application in the transdermal drug delivery, micro body fluid extraction and other biomedical field.

The invention relates to a preparation method of a homodisperse carbon nano tube enhanced aluminium base composite material and belongs to the preparation technology of an aluminium base composite material. The method comprises the following steps: preparing catalyst precursor powder from nickel salt and aluminite powder by a dipping method; preparing Ni / Al catalyst by calcining the precursor powder, and then reducing the calcined precursor powder by utilizing hydrogen, or directly reducing the precursor powder by utilizing the hydrogen; carrying out catalytic pyrolysis reaction on the Ni / Al catalyst in a tubular furnace and the mixing gas of the introduced carbon source gas and carrier gas to prepare the composite powder of the carbon nano tube and aluminum; and preparing the homodisperse carbon nano tube enhanced aluminium base composite material block by carrying out cold pressing, sintering and hot extruding on the composite powder of the carbon nano tube and the aluminum. The invention has the advantages of simple and stable preparation process and promotion applicability; the obtained carbon nano tube is evenly dispersed on the surface of aluminium powder, and is well bonded with the interface of a substrate body; and the property of the aluminium base composite material is improved.

The invention relates to air-permeable microporous film masterbatch and further relates to a masterbatch containing plastic film and a preparation method thereof. The water-foamed, antibacterial and air-permeable microporous film masterbatch contains a polyolefin polymer, a modifier, a microporous water-absorbing inorganic expanded material, an initiator, a surfactant and a plastic antioxidant. The water-foamed, antibacterial and air-permeable microporous film contains the water-foamed, antibacterial and air-permeable microporous film masterbatch and blow-molded film plastics. The preparation method comprises the steps of granulating the masterbatch, then, carrying out water absorbing aging, adding the blow-molded film plastics, carrying out mixing, and adding the mixture into a foaming and extruding film blowing machine for extrusion, thereby preparing the film. The water-foamed, antibacterial and air-permeable microporous film provided by the invention has the characteristics of simple and stable preparation process, good processability and the like; a water foamer is adopted, is environment-friendly and safe and has an antibacterial function, and the extruded antibacterial and air-permeable film is controllable in micropore density, has the characteristics of fine and uniform open porous texture and cell size, and the like and has the characteristics of excellent comprehensive mechanical properties, environment-friendliness, easiness in recovery, and the like.

The invention discloses an environment-friendly water foamed polypropylene master batch which is prepared from the following materials in parts by weight: 5-10 parts of modifier, 5-10 parts of LDPE (low-density polyethylene), 30-60 parts of microporous water-absorbing inorganic foaming material, 0.01-0.2 part of initiator, 1-3 parts of surfactant and 0.1-0.5 part of plastic antioxidant. The modifier is one or more of ethylene-vinyl acetate copolymer, ethylene-propylene rubber, ethylene propylene diene copolymer, SBS (styrene-butadiene-styrene), polybutene and POE (polyolefin elastomer). The polypropylene low-ratio foamed sheet has the characteristics of excellent comprehensive mechanical properties, favorable heat resistance, environment friendliness, high recoverability and the like, can substitute the polyethylene and polystyrene low-foaming products used at present, is applicable to the fields of automobiles, packaging, buildings and the like, and implements the functions of weight reduction, energy saving and environment friendliness.

An optoelectronic semiconductor device including: a substrate; a semiconductor system having an active layer formed on the substrate; and an electrode structure formed on the semiconductor system, wherein the electrode structure includes: a first conductivity type bonding pad; a second conductivity type bonding pad; a first conductivity type extension electrode; and a second conductivity type extension electrode, wherein the first conductivity type extension electrode and the second conductivity type extension electrode form a three-dimensional crossover; wherein the first conductivity type extension electrode and the second conductivity type extension electrode are on the opposite sides of the active layer.

This invention discloses a Ta-substituted (K, Na) NbO3-based Pb-free piezoelectric ceramic, whose general formula is (K0.44Na0.52Li0.04) (Nb0.96-xTaxSb0.04) O3, where, x is 0.00-0.40. The preparation method comprises: pre-treating the raw materials, mixing, pre-sintering, granulating, producing green bodies, gel-casting, sintering, coating with Ag, polarizing and examining. The obtained Ta-substituted (K, Na) NbO3-based Pb-free piezoelectric ceramic has a piezoelectric constant d33 of 252 pC / N, an electromechanical coupling coefficient KP of 0.42, a dielectric constant epsivr of 1503, and a dielectric loss tan delta of 0.025. The Ta-substituted (K,Na)NbO3-based Pb-free piezoelectric ceramic has such advantages as high dielectric parameters, high piezoelectric parameters, high time stability and simple process, and can be used to prepare acoustic generators, ultrasonic transdecuers and resonators.

A process for preparing the acetylcholinesterase used to detect the content of residual agricultural chemical in fruit and vegetable includes such steps as extracting the coarse liquid extract from animal blood, purifying by ammonium sulfate deposition method, removing ammonium sulfate by dialysis method, concentrating and drying. Its advantages are widely available raw material, low cost and high purity and sensitivity of product.

The invention discloses a manufacturing technology of a glass fiber / epoxy resin composite material substrate type fiber bragg grating sensor. The manufacturing technology comprises the steps that glass fiber / epoxy resin prepreg is procured to prepare a glass fiber / epoxy resin composite material substrate; a fiber bragg grating is fixed to the glass fiber / epoxy resin composite material substrate; the glass fiber / epoxy resin composite material substrate fixed with the fiber bragg grating is covered with a dry-state glass fiber cloth, vacuum aided filling of liquid epoxy resin is performed, and secondary curing molding is performed. The manufacturing technology adopts the secondary curing molding in the packaging process, the interlayer interface strength is remarkably improved, accordingly the testing precision and stability of the fiber bragg grating sensor are improved, batch production of the fiber bragg grating sensor can be achieved, and the manufacturing technology has wide market prospect and huge economic benefit.

The invention belongs to the technical field of functional coatings and in particular relates to a silica aerogel reflective insulation exterior wall coating which comprises water A, rutile titanium dioxide, a silica aerogel precursor, pigments and filler, a flatting agent, a dispersant, a preservative, a defoamer, a styrene-acrylic emulsion, an elastic emulsion, an organosilicone modified acrylic emulsion, a coalescing agent, a thickener and a pH adjustor. The preparation method comprises the following steps: mixing the materials in order; and grinding the mixture. Compared with a conventional reflective insulation coating, the reflective insulation coating prepared by adopting formula materials and method provided by the invention is quite excellent in reflective insulation property and has the advantages of low production cost and environmental protection.

The invention discloses a polypyrrole coated hard carbon cathode material and a preparation method thereof. The polypyrrole coated hard carbon cathode material adopts a hard carbon sphere as the substrate, which is coated with a polypyrrole layer. The preparation process comprises: taking glucose as the carbon source, preparing a hard carbon sphere material by a hydrothermal calcination method, taking ferric chloride hexahydrate as the oxidant, and preparing the polypyrrole coated hard carbon cathode material by an in-situ chemical oxidation method. The process involved in the invention is simple, has good repeatability, and has no need of adding additives. The prepared composite material has good electrical conductivity, thus being in favor of bringing the electrochemical performance of the lithium ion battery cathode material into play.

The invention relates to a foaming polypropylene composition. In the foaming polypropylene composition, a polypropylene component is used as a substrate material, a hindered phenol antioxygen and a phosphite ester antioxygen form an antioxygen system, talcpowder or calcium carbonate is used as a nucleating agent and monoglyceride is used as an activator. The composition disclosed by the invention has the characteristics of simple and stable preparation process, high processing performance and the like; and the density of the high-power foamed product formed by extruding the composition is controllable within a range from 18 to 100kg / m<3>, the maximum foaming power can reach 50 times, and the foaming polypropylene composition has the characteristics of closed pore structure, fine and uniform foam pore size, and the like. The polypropylene high-power foamed product has the characteristics of high comprehensive mechanical performance, high energy absorbing and buffering effect, environment friendliness, easy recycling and the like and can be used in fields of automobiles, high-quality electronic packages, buildings and the like with energy-saving and environment-protection effects and other effects.

The invention discloses a process for spinning and molding a magnesium alloy sheet. The process comprises the following steps: a blank material is cut; a blank material of the magnesium alloy sheet is heated; a mould is heated; the blank material of the magnesium alloy sheet is clamped, spinned and molded; the edge of blank material is trimmed; and the blank material is subjected to postprocessing to obtain a finished product. With the technical proposal, the sheet has good molding capacity; a molded product has smooth surface and good tissue performance and dimension precision, thereby greatly improving the excellent and good rate of the product; the manufacturing process is rapid and stable, improves production efficiency, reduces the defective index, is more favorable for material molding and has less unedged scrap; and when a semifinished product is molded, less unedged scrap is produced, thereby effectively reducing production cost and obviously exalting the mechanical performance of the product.

The invention discloses a method for preparing a TiC-reinforced copper-based electric contact composite material. The preparing method includes the steps of raw material preparation, carbon source manufacturing, powder briquetting and sintering, TiC self-forming reaction synthesis and the like. The method for preparing the TiC-reinforced copper-based electric contact composite material has the characteristics that the preparation technology is simple and stable, cost is low, efficiency is high and the method is suitable for industrial production and application. The carbon source used in the preparing method refers to Cu-graphite coated TiC mixed powder obtained by ball milling, the grain size of synthesized TiC is 0.5-2.0m, and TiC grains are evenly distributed on a copper substrate. Theprepared TiC-reinforced copper-based electric contact composite material is high in compactness, good combination of the strength, hardness, electrical conductivity and thermal conductivity of the composite material can be realized by adjusting the content of the TiC, and the high-strength and high-conductivity characters are achieved.

An optoelectronic semiconductor device including: a substrate; a semiconductor system having an active layer formed on the substrate; and an electrode structure formed on the semiconductor system, wherein the electrode structure includes: a first conductivity type bonding pad; a second conductivity type bonding pad; a first conductivity type extension electrode; and a second conductivity type extension electrode, wherein the first conductivity type extension electrode and the second conductivity type extension electrode form a three-dimensional crossover; wherein the first conductivity type extension electrode and the second conductivity type extension electrode are on the opposite sides of the active layer.

The invention provides an I-type collagen-sodium alginate-polyvinyl alcohol composite film which comprises the following components by weight percent: 20% to 60% of I-type collagen, 20% to 60% of sodium alginate and 20% to 60% of polyvinyl alcohol. A preparation method of the composite film comprises the following steps: firstly, respectively dissolving the I-type collagen, the sodium alginate and the polyvinyl alcohol in different reaction kettles and regulating the pH of the I-type collagen to be within 5 to 8; then, successively adding a sodium alginate liquid and a polyvinyl alcohol liquid in proportion into an I-type collagen liquid and stirring for 4 to 10 hours; adding a defoaming agent to a mixed liquid and stirring for 20 to 60 minutes; then, pumping the mixed liquid into a storage tank and standing for defoaming; after the defoaming is checked to reach a requirement, pumping the mixed liquid into a film casting machine so as to obtain a film in a casting manner, drying and soaking the film in a cross-linking agent liquid or standing under a cross-linking condition for cross-linking for 4 to 24 hours, cleaning and drying; finally, shaping the film, packaging and irradiating, thereby obtaining the I-type collagen-sodium alginate-polyvinyl alcohol composite film. The composite film material is good in mechanical property, hydrophilcity and biocompatibility, moderate in degradation velocity and simple in preparation process. Thus, the composite film material can be widely applied to wound dressing, hemostatic materials, tissue engineering scaffold materials and the like.

A secondary battery according to the present invention includes a polymer cell in which insulating wing portions are provided on lead tabs and a top case assembled to the polymer cell and having an evasion portion to reduce interference with the insulating wing portions. A secondary battery can reduce interference which occurs between an insulating wing portion having an irregular shape. Further, as a result, it is possible to reduce the variance of the external dimension of an inner pack and achieve a more stable manufacturing process of the inner pack, and increase the reliability and competency of the inner pack to which the polymer cell is applied.

The invention provides a polypropylene composition for an ampoule bottle. According to the polypropylene composition, polypropylene is taken as a base material, a flexibilizer is an elastomer SEBS, and an antioxidant system consists of a hindered phenol antioxidant and a phosphite ester antioxidant. According to the polypropylene composition for the medical ampoule bottle provided by the invention, the density is 0.890-0.910g / cm<3>, the melt mass flow rate ranges from 0.5g / 10 minutes to 8.0g / 10 minutes, the tensile yield stress ranges from 10MPa to 20MPa, and the constant temperature impact strength is 30-90kJ / cm<2>. The composition has the characteristics of simple and stable preparation process, good processing performance and the like. The ampoule bottle prepared from the composition has the characteristics of low content of dissolved matters, good safety, easy openness, high transparency, good heat resistance and the like and is taken as a packaging container of a small-volume injection.

The invention discloses a miniature solid or hollow silicon needle, a silicon needle array and the manufacture method, belonging to the medical service and hairdressing apparatus and micro machining technical field. The lower end of the miniature silicon needle head is column. The upper needle point of the needle head is provided with at least one arc sharp corner to form the peak. A through holeis arranged on the peak and is connected with the inverse triangle groove at the bottom. By micro-electronics craft, at the positive and the back surfaces of the (110) crystal orientation monocrystalline silicon wafer, two kinds of inverse triangle grooves are processed in batches which are formed by six silicon (111) surfaces, using the anisotropism self-stop wet corrosion. Then the silicon needle and a through hole are manufactured by the DRIE method. The through hole is connected with the back inverse triangle groove. The invention has the advantages that: the solid or hollow silicon needle array can be manufactured in batches with low cost, high productivity and firm structure; the invention has a wider potential application in the transdermal drug delivery, micro body fluid extraction and other biomedical field.

The invention relates to a gas-sensitive element based on TiO2 / InVO4 heterostructure nanometer fiber, and applications thereof. The gas sensitive material in the gas-sensitive element is TiO2 / InVO4 heterostructure nanometer fiber; in the TiO2 / InVO4 heterostructure nanometer fiber, the molar ratio of TiO2 to InVO4 is 0.25-4:1. The gas sensitive material possesses excellent selectivity on ammonia gas; when the temperature is 250 DEG C, and gas concentration is 100ppm, the sensitivity of the gas sensitive material on ammonia gas is 30.5, the response time on ammonia gas is 10s, the recovery timeis 10s. Compared with TiO2 nanometer fiber, the gas sensitivity of the TiO2 / InVO4 heterostructure gas sensitive material obtained via InVO4 coupling modification is improved greatly, the response / recovery time is shortened, and the operating temperature is reduced.

The invention discloses a high-entropy alloy surface carburizing modification method. The method comprises the steps that (1), an HfZrTiTa high-entropy alloy is pre-treated; (2), active carbon is selected as a carburizing agent, a carburizing container is naturally filled with the carburizing agent, and the pre-treated HfZrTiTa high-entropy alloy is buried into the upper middle portion of the carburizing agent; (3), the carburizing container is sealed; and (4), the sealed carburizing container is placed into a heating device, heating is conducted till the temperature is 700-900 DEG C, then heat preservation is conducted for 2-10 h, after treatment is finished, the carburizing container is taken out for air cooling, then a sample subjected to carburizing treatment is taken out to be subjected to ultrasonic washing and drying, and a high-entropy alloy with the surface subjected to carburizing modification is obtained. According to the high-entropy alloy surface carburizing modification method, the surface hardness and the high-temperature oxidation resistance of the HfZrTiTa high-entropy alloy can be effectively improved at the same time.

The invention discloses a continuous hot-dip aluminum-silicon-magnesium alloy steel plate, a preparation method thereof and a plating solution, and belongs to the technical field of steel band plate coating composite materials. The plating solution comprises the following components of, by weight, 8-10% of Si, 0.5-6% of Mg and the balance Al. By adopting the plating solution for preparing the hot-dip aluminum-silicon-magnesium alloy steel plate, the corrosion resistance of an aluminum plated steel plate can be remarkably improved, particularly the protective performance of a cut-off surface obtained after machining can be improved, and the continuous hot-dip aluminum-silicon-magnesium alloy steel plate is a first-choice building material used under severe environments such as marine climate and industrial districts. In addition, for the continuous hot-dip aluminum-silicon-magnesium alloy steel plate, the preparation method and the plating solution, the related manufacturing process issimple, the raw material source is convenient, the manufacturing cost is low, and the continuous hot-dip aluminum-silicon-magnesium alloy steel plate, the preparation method and the plating solution can be suitable for industrial mass production.

A substrate manufacturing method is disclosed. A substrate manufacturing method, comprising: providing a support body on which a first separation layer is formed; forming a second separation layer on the first separation layer; forming an adhesion layer which covers the first separation layer and the second separation layer; forming a circuit stack body on the adhesion layer; cutting the circuit stack body, the adhesion layer and the second separation layer to a pre-determined shape; and forming a circuit stack unit by separating the second layer from the first layer, provides easy separation of the circuit stack pattern, which formed on the support body, from the support body and reduced manufacturing cost by reducing number of process and required materials for manufacturing coreless thin substrate.

The invention relates to the technical field of food producing and processing, and discloses a cuttlefish, squib ink and gulfweed noodles and a preparation method thereof. On the basis of the concept of a healthy diet and the idea of meat and vegetable collocation, the healthy and nutrient cuttlefish, squib ink and gulfweed noodles which have unique flavor and take cuttlefish, squib ink and gulfweed as main supplementary materials are provided; a food additive is completely abandoned; the ingredients are simple; the nutrient is abundant; and the cuttlefish, squib ink and gulfweed noodles are processed through a simple and stable technology. Compared with traditional noodles, the cuttlefish, squib ink and gulfweed noodles are rich in nutritional ingredients of iodine, calcium and the like, are free of the unacceptable stench of squib ink, have an outstanding fresh flavor of gulfweed and rich unique flavor of cuttlefish, are elastic and chewy, and are glossy in color and smooth in taste. The cuttlefish, squib ink and gulfweed noodles are simple in preparation technology, and are delicious and unique; and high-quality food with abundant nutrient and high cost performance is provided for most people.

The invention belongs to the field of metal materials and particularly relates to a TiC / Ti5Si3 enhanced copper-based composite and a preparing method thereof. The preparing method includes the steps of raw material preparing, preparing of carbon elementary substance mixed powder of Ti, Si, graphite and the like, powder briquetting and sintering, preparing of the TiC / Ti5Si3 enhanced copper-based composite and other steps. By means of the TiC / Ti5Si3 enhanced copper-based composite and the preparing method thereof, carbon elementary substances such as graphite powder or carbon black or carbon nano tubes or graphene are adopted as the carbon source, and the carbon elementary substances in melt and titanium are subjected to a spontaneous reaction to synthesize TiC so as to prepare the TiC / Ti5Si3 enhanced copper-based composite. The preparing technology is simple, the cost is low, and the efficiency is high. TiC particles are distributed in Ti5Si3, interface bonding between an enhancement body and a base body is good, and particle and fiber compounding enhancement is achieved. Compactness of the prepared composite is high, electric conduction performance and heat conduction performance are good, strength, hardness and wear resistance are high, meanwhile, good plasticity and toughness are achieved, and the TiC / Ti5Si3 enhanced copper-based composite is suitable for industrial production and application.

An optoelectronic semiconductor device includes a substrate, a semiconductor system having an active layer formed on the substrate and an electrode structure formed on the semiconductor system, wherein the layout of the electrode structure having at least a first conductivity type contact zone or a first conductivity type bonding pad, a second conductivity type bonding pad, a first conductivity type extension electrode, and a second conductivity type extension electrode wherein the first conductivity type extension electrode and the second conductivity type extension electrode have three-dimensional crossover, and partial of the first conductivity type extension electrode and the first conductivity type contact zone or the first conductivity type bonding pad are on the opposite sides of the active layer.