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69results about How to "The production process is simple and controllable" patented technology
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Nickel and manganese blended lithium ion battery positive material and preparation method thereof
ActiveCN104993121AWide variety of sourcesEasy to prepareCell electrodesSecondary cellsPower batteryManganate
The invention provides a nickel and manganese blended lithium ion battery positive material and a preparation method thereof. The method comprises the following steps: carrying out two-stage roasting on a high-nickel material precursor and a lithium source as raw materials to prepare a high-nickel positive material, and blending the prepared high-nickel positive material with a lithium manganate positive material to prepare the nickel and manganese blended lithium ion battery positive material for a power battery. The prepared positive material has the advantages of high safety and good cycle performances, and the preparation method of the positive material has the advantages of simplicity, easy implementation, wide sources of the raw materials, and low cost.
Owner:北京盟固利新材料科技有限公司
Nitrogen and sulfur-codoped graphene quantum dot and preparation method thereof
InactiveCN105567230AThe production process is simple and controllableLow equipment requirementsPhysical/chemical process catalystsWater/sewage treatment by irradiationCvd grapheneIon
The invention discloses a nitrogen and sulfur-codoped graphene quantum dot and a preparation method thereof. The preparation method comprises the steps that after a precursor pyrene is mixed with 80-100 ml of fuming nitric acid, refluxing and stirring are performed, nitro functionalizing treatment is performed on the surfaces of pyrene grains, a reactant is taken out, filtered and deacidified, an appropriate amount of NaOH is added to regulate the PH value, dispersion treatment is performed by adopting 300-W ultrasonic waves, the reactant is transferred into a polytetrafluoroethylene tank for a hydrothermal reaction, and after natural cooling is performed, a reactant is taken out, filtered, dialyzed and then dried; after a graphene quantum dot is dissolved into an appropriate amount of deionized water, an appropriate amount of ammonia water is added according to the proportion of the reactant, uniform mixing is performed, the mixture and an appropriate amount of sublimed sulfur are fully mixed to be uniform through stirring, the mixture is transferred into a polytetrafluoroethylene tank, a hydrothermal reaction is performed for 24 h by keeping the temperature of 180 DEG C-200 DEG C, and after cooling is performed, a reactant is taken out, filtered and dialysed to obtain the nitrogen and sulfur-codoped graphene quantum dot. The preparation method is simple in synthesis process, high in yield and finished product rate, environmentally friendly, poisonless, few in impurity and capable of easily obtaining the raw materials.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
Nanometer striking pin capable of intensifying micro-power on surfaces of substance
InactiveCN105771001AExtensive expansionHighlight substantiveSurgeryPharmaceutical non-active ingredientsSynthetic materialsEngineering
The invention provides a nanometer striking pin capable of intensifying micro-power on the surfaces of substances. The nanometer striking pin is characterized by being a polymer molecule composed of an artificial synthetic material.
Owner:于杰
SiC trench gate power MOSFET device and preparation method thereof
ActiveCN111697077AReduce conduction voltage dropWill not increase the areaSemiconductor/solid-state device manufacturingDiodeCapacitanceDielectric
The invention relates to a SiC trench gate power MOSFET device, and belongs to the technical field of power semiconductors. The SiC trench gate power MOSFET device comprises a trench source structure,a P-type polycrystalline silicon and a trench gate structure which are manufactured in a trench. The trench source structure can reduce gate-drain capacitance (Cgd) and switching loss, when a sourcedielectric layer is made of a high-K dielectric material, the electric field intensity of a source dielectric can be effectively reduced, the P-type polycrystalline silicon realizes integration of anHJD in the N-channel SiC trench gate power MOSFET, the HJD has lower forward conduction voltage drop, conduction of a body diode is inhibited, a reliability problem caused by bipolar degradation is avoided, and the integrated HJD does not additionally increase the area of a chip. The integrated SiCHJD is a unipolar device, the reverse recovery characteristic is superior to that of a bipolar body diode, and stability is better due to the fact that parasitic parameters brought by an external diode lead are avoided, in addition, the device is simple and controllable in manufacturing process and high in compatibility with an existing process.
Owner:HANGZHOU SILICON-MAGIC SEMICON TECH CO LTD
Salicylic acid solubilizing slow-release composition and preparation method and application thereof
InactiveCN109771333AImprove solubilityImprove stabilityCosmetic preparationsToilet preparationsSolubilityIrritation
The invention provides a salicylic acid solubilizing slow-release composition. The salicylic acid solubilizing slow-release composition is prepared from a specific proportion of active ingredient salicylic acid, solubilizing slow-release agent poloxamer 407, a humectant, a skin feeling conditioning agent, a preservative system and deionized water. The salicylic acid solubilizing slow-release composition has the advantages that under the conditions without alcohol and at a low pH value, the salicylic acid is prepared into a stable, easy-to-use and low-irritant water-soluble liquid, gel, or an intermediate state between the water-soluble liquid and the gel; on one hand, the solubility of the salicylic acid in an aqueous phase can be significantly improved, thereby increasing the biological utilization rate of the salicylic acid, on the other hand, the irritation of the salicylic acid to the skin can be significantly reduced, thereby solving the technical problem of the high-concentrationsalicylic acid intolerance of wide crowds. In addition, the invention further relates to a preparation method and application of the salicylic acid solubilizing slow-release composition.
Owner:HARMEN LEIMOGAOSHI ESSENCE
Graded porous polyvinylidene fluoride hollow-fiber composite film and production method thereof
InactiveCN108079795AThe production process is simple and controllableReduce manufacturing costSemi-permeable membranesMembranesFiberWater baths
The invention relates to the technical field of water treatment and particularly relates to and discloses a graded porous polyvinylidene fluoride hollow-fiber composite film. The graded porous polyvinylidene fluoride hollow-fiber composite film comprises a graded porous macroporous middle layer, an outer separation layer and an inner separation layer which cover the two sides of the macroporous middle layer, wherein the three-layer structure is integrally made from the same material, pores of adjacent two layers communicate with one another, and structures of the outer separation layer and theinner separation layer are denser than that of the macroporous middle layer. The invention further discloses a production method of the composite film. The method comprises the steps: (1) preparing apolyvinylidene fluoride casting solution; (2) subjecting the casting solution to composite forming, so as to prepare complex type hollow fibers; (3) carrying out air spacing, then, carrying out water-bath coagulating forming, and carrying out traction winding, thereby obtaining the polyvinylidene fluoride hollow-fiber composite film. According to the graded porous polyvinylidene fluoride hollow-fiber composite film and the production method thereof, disclosed by the invention, the graded porous polyvinylidene fluoride hollow-fiber composite film has the advantages of small pore size, high flow rate, high strength and pollution resistance. The production method has the advantages that production procedures are simple and controllable, and the production cost is low.
Owner:ZHEJIANG CHANGXING CREFLUX MEMBRANE TECH CO LTD
Functional pipetting head with double purification functions of ultra-filtration and solid extraction and application of functional pipetting head
ActiveCN104549593AThe production process is simple and controllableSimple structurePreparing sample for investigationUltrafiltrationAdhesive glueSolid phase extraction
The invention relates to an experiment device for pretreatment on samples, and in particular to a functional pipetting head with double purification functions of ultra-filtration and solid extraction, and application of the functional pipetting head in pretreatment and quantitative analysis on a biological sample in the medicine analysis process. The functional pipetting head comprises a pipetting head body, a solid-phase extraction material and a hollow fiber membrane, wherein the hollow fiber membrane is arranged at the sharp end of the pipetting head body; an adhesive is uniformly applied at the cross part of the sharp end of the pipetting head and the hollow fiber membrane; an upper end opening and a lower end opening are formed in the hollow fiber membrane; the upper end opening is sealed; the lower end opening is kept in an opened state; the solid-phase extraction material is arranged inside the pipetting head body. The functional pipetting head is simple, convenient and controllable in manufacturing process, flexible in extraction condition adjustment, scientific and reasonable in method, convenient in obtaining materials, and good in application prospect.
Owner:ZHEJIANG ACAD OF TRADITIONAL CHINESE MEDICINE
Preparation method of RGD polypeptide grafted poly(maleic anhydride-hexamethylendiamine-DL-lactic acid)/modified hydroxyapatite porous composite material
The invention relates to a preparation method of an RGD polypeptide grafted poly(maleic anhydride-hexamethylendiamine-DL-lactic acid) / modified hydroxyapatite porous composite material. The preparation method comprises the following steps: (1) introducing maleic anhydride and hexamethylendiamine to a side chain of polylactic acid at first, and then grafting adhesive RGD polypeptide; (2) dissolving the generated RGD polypeptide grafted poly(maleic anhydride-hexamethylendiamine-DL-lactic acid) in dichloromethane, adding modified nano modified hydroxyapatite, performing ultrasonic dispersion, stirring fully to mix uniformly, weighing sodium chloride particles screened by a molecular sieve, adding the sodium chloride particles into the mixed solution and stirring; and (3) when a solvent is volatilized, drying to perform volatilization, and soaking the material in distilled water to separate out the sodium chloride particles, thereby obtaining the RGD polypeptide grafted poly(maleic anhydride-hexamethylendiamine-DL-lactic acid) / modified hydroxyapatite porous composite material at last. The preparation method provided by the invention has the advantages that a manufacturing process is simple and controllable.
Owner:WUHAN UNIV OF TECH
Grinding wheel structure and manufacturing method
InactiveCN103707205AExtended service lifeHigh line speedBonded abrasive wheelsEngineeringGrinding process
The invention relates to a grinding wheel structure and a manufacturing method, and belongs to the technical field of grinding tools. The grinding wheel structure comprises a base and split type grinding blocks, dovetail grooves are formed in the base, a dovetail protrusion corresponding to the corresponding dovetail groove is arranged on the bottom of each grinding block, and the grinding blocks are fixed on the base through the matching of the dovetail protrusions and the dovetail grooves. Compared with the prior art, the split type structure is adopted by the grinding blocks, the notches of the dovetail grooves in the base are small in outside and big in inside, the grinding blocks are not fixed only through thermosetting resin, the grinding blocks can also be clamped through the shapes of the dovetail grooves, the grinding blocks can be fixed more firmly and prevented from falling off the base in a grinding process, the qualified rate is high, clearances are reserved between the grinding blocks and serve as interval grooves for draining water, lowering temperature and removing chips, and the service life is long. The split type grinding blocks are small in size, the manufacturing process is easier to control, the qualified rate is high, and the production cost is low.
Owner:GUIZHOU JINTE GRINDING TECH DEV
Grinding wheel with split dovetail groove structure
The invention discloses a grinding wheel with a split dovetail groove structure. The grinding wheel comprises an annular metal base body (1) and a grinding wheel grinding layer fixed on the peripheral surface of the metal base body (1), wherein the grinding wheel grinding layer is formed by combining a plurality of grinding wheel grinding blocks (2); dovetail grooves (3) are formed in the peripheral surface of the metal base body (1); a dovetail bugle (4) is arranged at the bottom of each grinding wheel grinding block (2); the dovetail bugles (4) of the grinding wheel grinding blocks (2) are embedded into the dovetail grooves (3) of the metal base body (1); the grinding wheel grinding blocks (2) are fixed to the metal base body (1); gaps (5) are formed in the embedded parts of the dovetail bugles (4) and the dovetail grooves (3). According to the grinding wheel, the split dovetail groove structure is adopted, so that materials are saved and the use cost is reduced; the grinding wheel has the characteristics that the production investment is small, the cost is low, the manufacturing process is easy to control, the scrap rate is low and the safety is good.
Owner:贵州荣清工具有限公司
Nitride semiconductor microcavity laser structure capable of achieving electric injection maser and preparation method thereof
PendingCN108336642AEasy to achieve current injectionReduce thermal resistanceLaser detailsLaser active region structureOptical limitingMaser
The invention provides a novel nitride semiconductor microcavity laser structure capable of easily achieving electric injection maser and a preparation method thereof. According to the novel nitride semiconductor microcavity laser structure, any one or combination of two or more of materials, such as AlInGaN, ITO, AZO, IGZO, porous GaN, Ag, Al, ZnO, MgO, Si, SiO2, SiNx, TiO2, ZrO2, AlN, Al2O3, Ta2O5, HfO2, HfSiO4 and AlON is adopted as an optical limiting layer of a microcavity laser, so that the thermal resistance of the laser can be greatly reduced on the premise of ensuring strong optical limitation and the performance of a device is improved. The novel nitride semiconductor microcavity laser structure provided by the invention has the advantages of being small in thermal resistance andgood in stability and reliability, and electric injection is easy to implement, the performance of the nitride semiconductor microcavity laser can be greatly strengthened and the life of the nitridesemiconductor microcavity laser can be greatly prolonged.
Owner:中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 +1
Method of machining special passivated stainless steel surface
ActiveCN103100562AReduce manufacturing costThe production process is simple and controllableWork treatment devicesMetallic material coating processesFurnace temperatureHydrogen Nitrate
Owner:NINGBO BAOXIN STAINLESS STEEL
Extraction method for sesame essential oil
The invention relates to a method for extracting essential oil of sesame and especially to a process for extracting volatile essential oil of sesame from natural sesame kernel adopting routine supercritical carbon dioxide extraction apparatus. The process consists of first cleaning the natural sesame kernel, removing the sand dust impurity and the surface impurity to obtain the pure sesame kernel, then bruising or comminuting the baked sesame kernel to half-sheet sesame powder, afterwards, placing the sesame powder into the supercritical carbon dioxide extraction kettle, controlling the abstraction pressure, temperature, carbon dioxide flux and abstraction time for extraction and separation, at the same time, in different pressure and temperature conditions, respectively collecting two-step extractants containing different components and volatility adopting two-step collecting kettle, then obtaining the essential oil of sesame by mixing the extractants collected by two-step collecting kettle. The process of this method is simple, safe and reliable, is of high yield rate and good quality, and can not destroy the edibility of the sesamin grease.
Owner:QINGDAO UNIV
Production process of dry lotus root starch
The invention discloses a production process of dry lotus root starch and belongs to a processing technology for agricultural and sideline products. The dry lotus root starch is produced by using dry lotus roots as raw materials. The production process comprises the specific flows of raw material pretreatment, soaking, squeezing, pulp washing, pulp bleaching, dehydration and washing, and drying. The production process has the beneficial effects that the dry lotus root starch is high in purity, small in nutrient loss, pure in taste, short in production period, and suitable for large-scale production; moreover, the production process is easy to control.
Owner:臧英迪
Production process of precision mold
InactiveCN106514171AThe production process is simple and controllableReduce pollutionSurface roughnessCylindrical grinding
The invention discloses a production process of a precision mold. The production process includes the following steps that screening and preliminary machining are carried out; an upper mold and a lower mold are assembled, a spigot and a positioning pin are matched, and finally a fastening bolt is used for tightening; the matched molds are subjected to machining of positioning reference holes, and the surface roughness of the holes needs to be higher than Ra 0.8; and a mold core of the upper mold is machined in an inlay welding manner, a core rod of the mold core is machined in a cylindrical grinding manner, a core head of the mold core is machined and formed through linear cutting, and the machined mold core is inserted into an upper mold inlay hole and welded and fixed at the rear end through argon arc welding. The production process of the precision mold is simple and controllable in operation and low in contamination, and meets the idea of sustainable development and cleaner production.
Owner:宁波鑫达模具制造有限公司
Medicament for treating liver-yang hyperactivity, extinguishing liver-wind and nourishing kidney-yin as well as preparation method
InactiveCN101461907ASimple processGood effectCardiovascular disorderPlant ingredientsCurative effectLycium barbarum fruit
The invention discloses medicine for treating liver-Yang hyperactivity, calming liver wind, and tonifying kidney yin and a preparation method. The medicine consists of Tuckahoe, scutellaria, uncaria, prunella, corn silk, cortex moutan, root of rehmannia, prepared rhizome of rehmannia, Chinese wolfberry, dogwood, radix cyathulae, Chinese yam, and medicated leaven. The preparation method comprises: firstly, soaking the Chinese yam in grain alcohol; secondly, soaking the prepared rhizome of rehmannia and the radix cyathulae in the grain alcohol; thirdly, drying and crushing the Tuckahoe, the scutellaria, the cortex moutan, chrysanthemum, the prunella, the uncaria, the corn silk, the Chinese yam, the root of rehmannia, the Chinese wolfberry, the dogwood, the medicated leaven, the prepared rhizome of rehmannia, and the radix cyathulae; and fourthly, putting fine powder into a sugar coating machine, adding 20 to 30 percent of dilute hydromel into the fine powder, stirring the mixture to prepare water-containing pills, and packaging the pills. The medicine has the advantages of reasonable formulation, remarkable medicine effect, full absorption, alleviation function, innocuousness, low cost, simple process, remarkable curative effect; in addition, the medicine can calm nerves, benefit kidney essence, fill encephalon, nourish Yin and calm wind. The preparation method has the advantages of simple process, remarkable curative effect, full absorption, alleviation function, innocuousness and low cost, and is suitable for industrialized production.
Owner:武汉市正兴和生物科技有限公司
III-V family nitride semiconductor epitaxial structure, device comprising epitaxial structure and preparation method thereof
InactiveCN104934509AQuality improvementImprove internal quantum efficiencySemiconductor devicesTransition layerNitride semiconductors
The invention relates to a III-V family nitride semiconductor epitaxial structure comprising a (1) substrate; (2) an epitaxial buffer layer; (3) an epitaxial transition layer; and (4) an epitaxial effective layer. The epitaxial buffer layer is provided with an upper surface and a lower surface which is contacted with the substrate. The epitaxial transition layer covers the epitaxial buffer layer, and a microscopic hole structure is arranged at the interface of the epitaxial transition layer and the epitaxial buffer layer. The microscopic holes are periodically or non-periodically arranged so that the interface of the epitaxial transition layer and the epitaxial buffer layer is enabled to be partially connected, and the connected parts and the hole parts appear in a spacing way at the interface. The epitaxial transition layer is provided with a flat upper surface. The epitaxial effective layer is arranged at the upper surface of the epitaxial transition layer. The epitaxial effective layer comprises an n-type epitaxial layer, a luminescent layer and a p-type epitaxial layer which are arranged from the bottom to the top. The invention also provides a manufacturing method of the epitaxial structure, a device comprising the epitaxial structure and a manufacturing method thereof.
Owner:SHANGHAI XINYUANJI SEMICON TECH
Manufacturing method of carbon fiber reinforced HDPE double-wall winding pipe
The invention discloses a manufacturing method of a carbon fiber reinforced HDPE double-wall winding pipe; firstly, a high-density polyethylene mixture is prepared by high-density polyethylene, a peroxide initiator, polyfunctional group monomers, a high molecular compatilizer and antioxidant; and modified carbon fibers are prepared by carbon fibers and a silane coupling agent. Then, the high-density polyethylene mixture and the modified carbon fibers are reacted and coextruded through a double-screw extruder, and are extruded by a mold and shaped in vacuum to obtain a carbon fiber reinforced HDPE hollow square pipe; and then, the carbon fiber reinforced HDPE hollow square pipe is spirally wound and welded by plastic hot melt adhesive to manufacture the carbon fiber reinforced HDPE double-wall winding pipe. As carbon fiber reinforced HDPE is adopted to manufacture the hollow square pipe, the creep resistance, the modulus, the impact resistance, the scratch resistance, the slow-speed crack expansibility resistance, the environmental stress cracking resistance and the high-temperature resistance are all greatly improved; and the double-wall winding pipe totally has enough gap tensile strength, so that the whole performance of the pipe is effectively improved.
Owner:WUHAN QINGYUAN PIPE CO LTD +1
Glass fiber enhanced high-density polyethylene (HDPE) double-walled winding pipe and manufacture method thereof
ActiveCN102691832BImprove performanceImprove creep resistanceRigid pipesFiberLow-density polyethylene
The invention relates to a glass fiber enhanced high-density polyethylene (HDPE) double-walled winding pipe, which is formed by spirally winding a glass fiber enhanced HDPE plastic pipe and welding the glass fiber enhanced HDPE plastic pipe by plastic hot melt adhesives, wherein the glass fiber enhanced HDPE plastic pipe is a hollow rectangular glass fiber enhanced HDPE plastic pipe with the long glass fiber content being 5 percent to 40 percent by weight. A manufacture method of the glass fiber enhanced HDPE double-walled winding pipe comprises the following steps that HDPE mixed materials are prepared, modified long glass fiber is prepared, the HDPE mixed materials and the modified long glass fiber take reaction and are coextruded into a hollow square pipe, and the hollow square pipe is made into the glass fiber enhanced HDPE double-walled winding pipe through spiral winding and plastic hot melt adhesive welding. The glass fiber enhanced HDPE double-walled winding pipe has the advantages that the creep resistance, the modulus, the impact resistance, the scratch resistance, the slow crack expansion resistance, the environment stress cracking resistance and the high-temperature resistance are good, the whole body has sufficient sewing stretching intensity, and the integral performance of pipelines is effectively improved.
Owner:SHANGHAI QINGYUAN PIPE TECH
Cotton and polyester cotton blended fabric pre-treatment method
InactiveCN106917294AHelp removeSolve hard-to-remove puzzlesBiochemical treatment with enzymes/microorganismsGrip property fibresPolyesterYarn
The invention discloses a cotton and polyester cotton blended fabric pre-treatment method. The method comprises the following steps: blank cloth preparing, composite biological enzyme pre-treatment, piling, washing, drying, dip padding on ginned cotton enzyme, steaming, washing and drying. According to the invention, lignin, starch slurry, cotton wax and cottonseed hull on the fabrics are degraded and emulsified by using a compound enzyme system, cooperation usage of lignin enzyme and cellulase is helpful for removing lignin of cottonseed hull and fiber cell wall, the composite pectase is introduced into a primary cell wall layer so that the pectic substances are degraded, a channel to a fiber cyst cavity is opened, staple fiber on the surface of yarn beam is removed by cellulose, the problem of difficult removal of the cottonseed hull during bio-enzyme treatment is effectively solved, caustic soda, a chemical agent, steam, electric power, water volume and COD content of sewage are reduced, a production process is simple and controllable, the processing of the multi-fiber composite fabrics is simple and easy, and quality of the product is increased.
Owner:VICTION INNER MONGOLIA KNITTING HIGH TECH CO LTD
Bainite sheet steel produced by controlled rolling and cooling method and preparation method thereof
ActiveCN102747295AThe production process is simple and controllableIncrease productivityRoll mill control devicesMetal rolling arrangementsSheet steelREL
The invention belongs to the field of single rolled steel plate rolling processes in metallurgy industry, in particular relates to a bainite sheet steel produced by controlled rolling and cooling technology, and is characterized by comprising the following chemical components by weight: 0.02-0.08% of C, 0.25-0.55% of Si, 1.65-1.85% of Mn, not more than 0.015% of P, not more than 0.008% of S, 0.05-0.08% of Nb+Ti, 0.30-0.50% of Mo+Cr, 0.015-0.05% of Als and the balance of Fe and trace impurity elements, wherein C+Si / 30+(Mn+Cr) / 20+Mo / 15 is not more than 0.25. According to the bainite sheet steel, the thickness specification range is 10-20 mm, the width of a finished product is not less than 0.85 time of nominal width of a rolling mill, unevenness of the steel plate is not more than 6 mm / m, the intensity index ReL is not less than 550 MPa, Rm is not less than 670 MPa, A is not less than 20%, and -20 DEG C Akv is not less than 200 J.
Owner:WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD
Pharmaceutical composition and health care product and preparation method
ActiveCN104667135ATo promote metabolismFunctionalAntinoxious agentsFood preparationUltraviolet A RadiationSpleen
The invention relates to the field of pharmaceuticals and particularly relates to a pharmaceutical composition and health care product and a preparation method. The pharmaceutical composition and health care product comprise haematoccus pluvialis which can regulate immune cells, enhance immunity, clear free radicals in a body, resist oxidation and relieve fatigue of the body, and can be used as a principal drug for playing a principal health care role; an aloe extract has the effects of relaxing the bowels with purgative, clearing liver-fire, clearing free radicals, resisting oxidation, reducing injuries caused by ultraviolet radiation, enhancing immunity and resisting tumors, and is used as an assistant drug for playing a complementary role; and villous amomum fruits and noni fruit pulp are matched to have the effects of removing dampness, appetizing, regulating qi, warming the spleen, improving insomnia, inflammation, pain, endocrine disorders and an immune system and realizing other nourishing and conditioning effects, and are respectively used as a complement drug and a guide drug for realizing the effects of consolidating basis and promoting drug efficacy. Aloe is a bitter cold product impairing the spleen, the villous amomum fruits are matched to warm the interior, reinforce the spleen, inhibit the coldness and prevent harming vital qi. Animal functional tests prove that the pharmaceutical composition and health care product can effectively realize the effects of resisting oxidation and alleviating physical fatigue, thereby being a good compound traditional Chinese medicine health care food.
Owner:HAINAN UNIVERSITY
A flame retardant extrusion grade pc/abs composite material
Owner:厦门德丰行塑胶工业有限公司
Fermentation culture medium for increasing ganoderic acid A in liquid fermented ganoderma mycelium and fermentation method
ActiveCN108251490AThe production process is simple and controllableAchieve mass productionFungiMicroorganism based processesChemistryGanoderic acid
The invention discloses a fermentation culture medium for increasing ganoderic acid A in a liquid fermented ganoderma mycelium and a fermentation method. The fermentation culture medium contains the following components in percentage by weight: 2%-5% of corn flour, 1%-2% of soybean meal, 1%-3% of glucose, 0.1%-0.5% of potassium dihydrogen phosphate, 0.05%-0.1% of magnesium sulfate, 50ppm-100ppm ofvitamin B1, 200umol / L-300umol / L of jasmonic acid methyl ester, and the balance of water. By fermenting the ganoderma mycelium in the fermentation culture medium, the fermentation time can be prolonged, and a fermented ganoderma mycelium product of high-content ganoderic acid A can be obtained.
Owner:上海禾向健康科技发展有限公司
Cold-fever-treating granules and preparation method thereof
The invention discloses cold-fever-treating granules and a preparation method thereof. The preparation method comprises the following steps: finishing and preparing 30-40% of folium isatidis, 30-40% of isatis root, 10-20% of fructus forsythiae and 10-20% of bistort rhizome, then adding water and decocting for twice while controlling the temperature, pressure, time, adding amount, solution discharge amount and times of the decoction, and then concentrating the decoction while controlling the temperature, pressure and solution charge amount during the concentration; then continuing to precipitate with ethanol, concentrating, precipitating with water, and concentrating into a paste with a weight which is not less than 12.5% of a raw medicine amount; crushing and sieving, drying, straightening and mixing, sub-packaging and packaging. The cold-fever-treating granules and the preparation method thereof disclosed by the invention have the following advantages: the prepared granules are sweet in taste, slightly bitter (without saccharose) and uniform, are capable of clearing away heat and toxic materials, and dispelling wind and relieving exterior syndrome, and are used for upper respiratory infection, acute tonsillitis, sphagitis, extrapelvic wind-heat, heat-toxin obstruction, fever and swollen sore throat; the production process is simple and easy to control, and only needs four medicinal materials.
Owner:HUBEI FUREN JINSHEN PHARMA
Diclofenac sodium dual-release enteric-coated preparation, as well as preparation method and control method thereof
ActiveCN103142558AReduce stimulationReduce the number of dosesOrganic active ingredientsAntipyreticDual releaseSpectral bands
The invention relates to a diclofenac sodium dual-release enteric-coated preparation, as well as a preparation method and a control method thereof. The diclofenac sodium dual-release enteric-coated preparation comprises the following components in percentage by weight: 11%-44% of microcrystalline cellulose, 2%-5% of ethyl cellulose, 3%-10% of povidone, 1%-6% of Eudragit S100, 2%-16% of Eudragit RL PO, 2%-12% of Eudragit RS PO, 1.5%-12% of tributyl citrate, 0.01%-0.1% of sodium hydroxide, 0.05%-1% of propylene glycol, 6%-15% of talc powder, 0.1% of silicon dioxide, 0.3% of titanium dioxide and 0.3% of dimethyl silicone oil, A and B pills with two release mechanisms are respectively prepared, and double-layer tablets, capsules or granules are prepared, wherein a prepared intermediate product has the laser spectral band pass of 5.0nm, the transmission spectral band pass of 10.0nm, the excitation wavelength of 340nm and the fluorescence intensity of 330-380 under the condition that the transmission wavelength is 510nm. The quality of the diclofenac sodium dual-release enteric-coated preparation disclosed by the invention is in line with the standard, and quality control is performed before production, so that rework can be reduced, the production cost can be saved, the energy consumption can be reduced and the production efficiency can be improved.
Owner:广东全瑞医药有限公司
Tandem liquid phase micro-extraction device and method for extracting, purifying and chemically deriving traditional Chinese medicine volatile oil
InactiveCN109030646AThe production process is simple and controllableAll-in-one processingComponent separationHollow fibre membraneAnalyte
The invention relates to a tandem liquid phase micro-extraction device for extracting, purifying and chemically deriving a traditional Chinese medicine volatile oil. The tandem liquid phase micro-extraction device for extracting, purifying and chemically deriving the traditional Chinese medicine volatile oil comprises an extraction device, a purification device, and a chemical derivatization device; the extraction device comprises a fraction guiding tube, a first heating device and an extraction container; the purification device comprises a separation container, a cooling device, a volatile oil guiding tube, a separation hollow fiber membrane, a first quantitative syringe, and a pressure regulating tube; and the chemical derivatization device comprises a derivatization container, a secondheating device, a derivatization hollow fiber membrane, a sample receiving vial, a second quantitative syringe and an analyte guiding tube. The preparation process of the invention is simple and controllable, the application method is scientific and reasonable, the pre-treatment conditions are flexibly adjusted, the material is convenient to be taken, and the prospect is good.
Owner:ZHEJIANG ACAD OF TRADITIONAL CHINESE MEDICINE
A water-soluble whitening composition formula and its preparation method and application
ActiveCN108578261BLess irritatingIncrease irritationCosmetic preparationsToilet preparationsQuinonePolythylene glycol
The present invention provides a water-soluble whitening composition formulation, which includes four whitening active ingredients 4-(1-phenylethyl)-1,3-benzenediol, white truffle extract, mulberry root extract and ferulic acid As well as water, poloxamers, polyethylene glycols (PEGs), humectants, skin feel modifiers and preservative systems. The formula can not only make the above four whitening active ingredients, especially the insoluble whitening active ingredient 4-(1-phenylethyl)-1,3-benzenediol, be stably dissolved in the water phase, so as to obtain stable Solubilized compound whitening formula; and it can also play a synergistic effect of the four whitening active ingredients, which can reduce the irritation of the whitening active ingredients in the formula to the skin while whitening the skin. In addition, the present invention also relates to the preparation method and application of the above whitening formula.
Owner:HARMEN LEIMOGAOSHI ESSENCE +1
Nitride semiconductor microcavity laser structure with low electric resistance and low thermal resistance
ActiveCN108718030ALower resistanceLarge injection areaLaser detailsLaser active region structureEtchingOhmic contact
The invention provides a nitride semiconductor microcavity laser structure and a preparation method thereof. A microcavity laser is prepared on the (0001) nitrogen surface of a nitride semiconductor,and p-type ohmic contact on a (0001) gallium surface adopts a whole surface contact manner, so that the series resistance of the microcavity laser is greatly reduced; the heat of the microcavity laseris directly transferred into a heat sink with high heat conductivity, a microcavity laser is prepared on the (0001) nitrogen surface, and the side wall of the microcavity laser is manufactured by using a wet etching method, so that the stability of the microcavity laser can be greatly promoted, the optical limiting layer of the microcavity laser is prepared by using AlInGaN, ITO, AZO, IGZO, porous GaN, Ag, Al, ZnO, MgO, Si, SiO2, SiNx, TiO2, ZrO2, AlN, Al2O3, Ta2O5, HfO2, HfSiO4 and AlOH materials, and high optical limitation is provided. The novel nitride semiconductor microcavity laser structure provided by the invention has the advantages of low electric resistance, low thermal resistance, easy implementation of electric injection, high stability, high reliability and the like, the performance of the nitride semiconductor microcavity laser can be greatly enhanced, and the service life of the nitride semiconductor microcavity laser is greatly prolonged.
Owner:江西省纳米技术研究院 +1
Preparation method for surface enhanced Raman scattering substrate based on cationic resin
The invention discloses a preparation method for a surface enhanced Raman scattering substrate based on a cationic resin. The method comprises the following steps: completely dissolving silver nitrate in pure water; adding the cationic resin for an ion exchange reaction; rinsing the cationic resin with pure water after the reaction, adding a proper amount of pure water, placing the resin in ice bath, adding a hydroboron solution for a reduction reaction and cleaning and drying the resin to obtain the surface enhanced Raman scattering substrate whose surface is coated with silver. The substrate prepared by using the method has good spectral signal stability and repeatability and long preservation time; the preparation method is simple, costs little and can be used for detection and analysis of low content compounds.
Owner:SHANDONG UNIV
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