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38results about How to "Small diffusivity" patented technology
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Glass frit free of alkaline, lead and cadmium and its use to produce coloured enamels
The present invention relates to a frit which does not contain base metal, lead or cadmium, the frit is provided with a thermal expansion coefficient alpha of less than 6.5*10-6k-1 at the temperature range from 20 to 300 degree and a transition temperature Tg of less than 550 degree, the frit includes special glass composition or is composed of it. The frit is especially suitable for preparing the low-calcined ceramic pigment which can be used to decorate the low-expending carrier substrate, such as glass and / or devitroceram.
Owner:SCHOTT AG
Process for extracting and refining lavender oil
InactiveCN1693438ALow extraction and separation temperatureMild conditionsEssential-oils/perfumesWaxLavender oil
Owner:GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Preparation method of ZSM-35 molecular sieve
ActiveCN109502606ALarge specific surface areaSmall specific surface areaFerrierite aluminosilicate zeoliteMolecular sieveSilicon
The invention relates to a preparation method of a ZSM-35 molecular sieve, and belongs to the field of preparation of molecular sieves. The preparation method comprises the following steps: (a) preparing an aluminum source, a complexing agent and water into a solution a and aging the solution a at 10 to 100 DEG C for 1 to 48 hours to obtain aging liquid, wherein the aging condition in the preferred scheme that aging is performed for 6 to 24 hours at 30 to 70 DEG C; (b) uniformly mixing a silicon source, the aluminum source, an alkali source, a template agent, water and a ZSM-35 molecular sievecrystal seed to obtain gel b; (c) transferring the gel b into a crystallization kettle and crystallizing at 50 to 150 DEG C for 12 to 72 hours; (d) replenishing the aging liquid obtained in the step(a) into the crystallization kettle in the step (c), and crystallizing at 150 to 180 DEG C for 12 to 72 hours; (e) after the reaction ends, separating mother liquid, washing, exchanging, drying and calcining to obtain the ZSM-35 molecular sieve. The preparation method for preparing the ZSM-35 molecular sieve which has controllable silicon aluminum distribution, a mesoporous structure, small grainand high specific surface area is of great significance.
Owner:SHANDONG QILU HUAXIN HIGH TECH
High-definition back projection film and preparation method thereof
InactiveCN102336986ATo achieve the diffusion effectSmall diffusivityProjectorsHigh definitionBack projection
The invention relates to a high-definition back projection film and a preparation method thereof. The high-definition back projection film is prepared by adding a plasticizing agent, a stabilizer, an elasticizer, a color cake and a light diffusant into a PVC (Polyvinyl Chloride) raw material, wherein the light diffusant is an organic silicon light diffusant; the PVC is ultrahigh-polymerization-degree PVC of which the polymerization degree is 1800; and the high-definition back projection film comprises the following components in parts by weight: 100 parts of PVC of which the polymerization degree is 1800, 50-70 parts of plasticizing agent, 3-6 parts of stabilizer, 5-15 parts of elasticizer, 1-5 parts of color cake and 3-15 parts of organic silicon light diffusant. The preparation method comprises dispensing, mixing, plasticizing, filtering, molding, embossing, cold cutting, trimming and rolling. The high-definition back projection film has the excellent properties of gain of 0.7-1.4, gain visual angle of 50-80 degrees, freeness from whitening phenomenon, high definition, strong contrast and high color rendition, and can be widely applied to the field of projection screens.
Owner:ZHEJIANG HAILIDE NEW MATERIAL
Sulfonium onium salt photoacid generator containing beta-eudesmol structure, and preparation method thereof
InactiveCN111138331AImprove hydrophilic-lipophilic balanceImprove diffusivitySulfonic acids salts preparationPhotosensitive materials for photomechanical apparatusOrganic solventHydrogen atom
The invention relates to the technical field of photoresist, and particularly discloses a sulfonium onium salt photoacid generator containing a beta-cineole structure, and a preparation method thereof. The photoacid generator includes an anion and a cation, the anion and the cation have structures represented by formulas shown in the description; and in the formulas, R represents an alkyl group, acycloalkyl group, a heteroalkyl group, or a heterocycloalkyl group, and P1, P2, and P3 each independently represent a hydrogen atom or an optionally substituted alkyl group having 1 to 12 carbon atoms. The photoacid generator prepared by the invention has good hydrophilicity, can improve the solubility in an organic solvent, and can effectively inhibit the diffusion of acids. The invention further provides the preparation method of the sulfonium salt photoacid generator containing the beta-cineole structure. Beta-cineole is used as a reaction initiator to react and then reacts with sulfoniumhalide to obtain the sulfonium salt photoacid generator containing the beta-cineole structure, so the preparation method is simple.
Owner:上海博栋化学科技有限公司
Overhead wall adherent low diffusion ladder flow air supply system for displacement ventilation
InactiveCN101825330AJet stream is conducive to the formation ofAdhesive jetDucting arrangementsLighting and heating apparatusVena contracta diameterInlet channel
The invention discloses an overhead wall adherent low diffusion ladder flow air supply system for displacement ventilation, which comprises a box body (1) containing an air inlet channel, and an air inlet (10) and an air outlet shutter (4) which are arranged on a box body (1). The invention is characterized in that a current sharing orifice plate (2) is horizontally arranged at the lower part of the box body (1) and between the air inlet (10) and the air outlet shutter (4). The current sharing orifice plate (2) divides the box body (1) into an upper plenum box cavity (11) and a lower air supply box cavity in which a drainage folded plate (3) is arranged vertically between the current sharing orifice plate (2) and the air outlet shutter (4). The air supply system can effectively solve the problems of the displacement ventilation under installed air port arrangement form, realize the high ventilation efficiency of the air conditioner manner when a side wall overhead air port is arranged and give consideration to both traditional displacement ventilation and mixed ventilation.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
SHPB device for acquiring half sinusoids at different loading rates and use method thereof
InactiveCN107228802ASmall diffusivityGood repeatabilityMaterial strength using single impulsive forceAudio power amplifierEngineering
The invention belongs to the technical field of impact dynamics and discloses a SHPB device for acquiring half sinusoids at different loading rates and a use method thereof. The device comprises a pendulum bob support, a pendulum bob, a cross laser calibration bearing base, an entrance rod and a transmission rod. The top of the pendulum bob support is provided with a dial and a pointer. The pendulum bob comprises a bob bar and a bob head. The bob bar can drive the pointer to carry out circling motion around the axle. The impact end surfaces of the bob head are cambered surfaces and have different curvature radiuses. One side of the pendulum bob support is provided with the cross laser calibration bearing base. The cross laser calibration bearing base is provided with the entrance rod and the transmission rod moving along the axial direction. The entrance rod and the transmission rod are respectively provided with strain gages. The strain gages are connected to an oscilloscope recorder, an exchanger and a computer through a signal preamplifier. The device can acquire half-sine incident stress wave having small dispersivity and good repeatability at different incident stress wave time and different loading rates and improve test accuracy.
Owner:NORTHEASTERN UNIV LIAONING
Body sample angiographic filler and preparation method thereof
The invention relates to an angiography technology and an anatomy and casting technology of a body sample and specifically discloses a body sample angiographic filler and a preparation method thereof. The filler consists of E-51 epoxy resin, 2,4,6-tri(dimethylamino methyl) phenol (DMP-30), polypropylene glycol diglycidyl ether (D-1217), a T-31 epoxy resin curing agent and a metal oxide powder contrast agent (zinc oxide, titanium dioxide, cuprous oxide and chromium sesquioxide). The angiographic filler disclosed by the invention is simple to prepare, easy to regulate in concentration and color and hard to decolorize, and has the characteristics of being rapid in automatic coagulation, small in percentage of contraction, high in toughness, low in cost and the like. CT reconstruction of blood vessel images of a human body sample or an animal body sample (or organ) have the advantages of being clear, full, continuous, free of fake shadows and burrs and the like.
Owner:黄海龙
Transistor and formation method thereof
ActiveCN104064463ADiffusion ability is smallStable performanceSemiconductor/solid-state device manufacturingSemiconductor devicesIonVoltage regulation
The invention provides a transistor and a formation method thereof. The formation method of the transistor comprises: providing a semiconductor substrate, wherein the surface of the semiconductor substrate is provided with a plurality of separating layers, openings are formed between neighboring separating layers, the bottoms of the openings are provided with threshold voltage adjusting layers, and the threshold voltage adjusting layers are internally provided with doped ions; forming barrier layers on the surfaces of the threshold voltage adjusting layers and channel layers on the surfaces of the barrier layers, wherein the channel layers are at intrinsic states, and the barrier layers are used for preventing penetration by the doped ions in the threshold voltage adjusting layers; forming grid structures on the surfaces of the channel layers, wherein the surfaces of the grid structures are flush with the surfaces of the separating layers; removing the separating layers until the semiconductor substrate is exposed; and after the separating layers are removed, forming a doping layer on the surface of the semiconductor substrate at the two sides of the threshold voltage adjusting layers, the separating layers, the channels layers and the grid structures, wherein the surface of the doping layer is not lower than the surfaces of the channel layers. The formed transistor is lower in power consumption and stable in performance.
Owner:SEMICON MFG INT (SHANGHAI) CORP
Display panel assembly and display device
InactiveCN109164618AIncrease flexibilityImprove experienceStatic indicating devicesNon-linear opticsDisplay deviceEngineering
The invention is applicable to the technical field of displaying, and provides a display panel assembly and a display device. The display panel assembly comprises a diffusion film arranged on the light emitting surface of a display panel; the diffusion film comprises a first electrode, a second electrode and a diffusion liquid crystal layer clamped between the first electrode and the second electrode; and the diffusion performance of the diffusion film varies according to voltage applied between the first electrode and the second electrode. According to the display panel assembly, through thearrangement of the diffusion liquid crystal layer on the light emitting surface of the display panel, the diffusion performance of the diffusion film can be changed by adjusting the voltage, so that auser can freely adjust the diffusion performance of the diffusion film to meet different visual angle requirements; a good displayed picture can be observed under a large visual angle, and the picture still has relatively good contrast and brightness under a small visual angle; the display panel assembly considers different visual angles and the picture quality under different visual angles; andthe flexibility of visual angle adjustment and the user experience are improved.
Owner:HKC CORP LTD
Flexible color filter substrate using phase-change ink, and method for manufacturing same
ActiveCN103797562AAvoid color mixingReduce light leakageSemiconductor/solid-state device manufacturingNon-linear opticsColor gelEngineering
Owner:LG CHEM LTD
Regenerating method for Al/Al2O3 part of TD/DRM process of semiconductor 8-inch wafer film process
ActiveCN108573855AFast migrationLow viscositySemiconductor/solid-state device manufacturingEnvironmental resistanceThermal energy
The invention relates to a regenerating method for an Al / Al2O3 part of a TD / DRM process of a semiconductor 8-inch wafer film process. The method comprises the steps that dry ice particles are sprayedand cleaned to regenerate the surface of the part; local temperature difference change formed by thermal energy absorption of dry ice during a sublimation process is used to generate a 'shear stress'between a substrate and a cleaned object, and the cleaned object is quickly peeled off from the surface of the substrate; a Venturi nozzle can generate a carbon dioxide gas stream containing more dryice particles; ultrasonic assisted supercritical CO2 cleaning regenerates the inner surface, the chamber and the groove of the part; and supercritical CO2 easily penetrates into the micropores and thechamber or groove of the part to dissolve pollutants, so that the pollutants migrate fast in supercritical CO2 to achieve the purpose of cleaning. Ultrasonic assisting further improves the cleaning effect and efficiency. The regeneration time and cost are shortened. The regenerating method has the advantages of simple process, environmental protection, being pollution-free and good regeneration effect, does not damage the semiconductor part, and has no impact on the performance of the part.
Owner:苏州珮凯科技有限公司
Heat transfer printing coating and preparation method thereof
InactiveCN112457749AReduce lossUniform film thicknessFireproof paintsPolyester coatingsCoated membraneMetallic aluminum
Aiming at the problems of low spraying efficiency, high labor intensity, high coating loss, non-uniform coating film thickness and the like due to the fact that a thermal transfer coating is formed onthe surface of a metal aluminum base material and a polyurethane powder spraying process is mostly used for construction in the prior art, performance indexes cannot meet thermal transfer requirements in practical application, and a transfer image effect is not ideal. The invention provides a heat transfer printing coating which is prepared by mixing the following components in parts by weight: 30-60 parts of polyester resin, 10-35 parts of amino resin, a proper amount of catalyst and a proper amount of solvent. The heat transfer printing coating is used in cooperation with polyester resin primer of a metal aluminum base material, the surface of the primer is coated with the heat transfer printing coating through a roller coating process, the thermal transfer coating can be formed throughcontinuous high-speed production, and the heat transfer printing coating has the advantages of being high in roller coating production efficiency, high in yield, small in environmental harm and the like and has a good thermal transfer effect.
Owner:清远慧谷新材料技术有限公司
Cooked food film and making process thereof
InactiveCN113729170AThe production process is simple and fastSlow down too fast volatilizationFood ingredient as colourMeat/fish preservation by coatingBiotechnologyDietary Oils
The invention provides a cooked food film and a making process thereof, and relates to the field of food processing. The cooked food film comprises the following raw materials in parts by weight: 340-360 parts of a film-forming agent, 5-10 parts of edible oil, 5-10 parts of honey, 20-30 parts of braised soy sauce, 15-30 parts of a spice bag, 15-25 parts of yellow rice wine, 25-35 parts of fermented red bean curd juice, 40-50 parts of straw mushroom sauce, 3-8 parts of dark soy sauce, 10-30 parts of light soy sauce, 1.0-2.0 parts of fresh ginger, 25-35 parts of carrots, 15-25 parts of green Chinese onions, 4-12 parts of garlic and 2800-3200 parts of water. The cooked food film prepared by the making process disclosed by the invention is colloidal, and wraps the surface of a cooked food product, so that the moisture of juice is effectively locked, the effects of preserving moisture and heat are achieved, the color sense effect of the cooked food product can also be improved, and the fresh and tender degree, the mouth feel and the fragrance of the cooked food product are further improved.
Owner:北京吉龙鑫源食品有限公司
Castor-based biodegradable plastic composite lithium base lubricating grease composition
InactiveCN104450005APoor contactGood compatibilityLubricant compositionAntistatic agentLithium hydroxide
The invention discloses a castor-based biodegradable plastic composite lithium base lubricating grease composition. Poly-internal-olefin and castor-based diisodecyl sebacate are compounded to serve as base oil, and multiple composite additives including 12-hydroxystearic acid, an antioxidant, aids, lithium hydrate, a viscosity-temperature characteristic modifier, a light stabilizer, a mildew preventive, an antistatic agent, a light screener and a reinforcing agent are also used. The lubricating grease composition disclosed by the invention has good compatibility with plastic products, lubricating property, stability, durability, low diffusivity, stability and wide application temperature range, does not corrode metal materials, and does not cause bad contact of contact points.
Owner:GUANGXI UNIV
PVC baking varnish adhesive tape for metal baking varnish vehicle and preparation method of PVC baking varnish adhesive tape
InactiveCN113061399AExtended service lifePrevent oxidation and corrosionNatural rubber adhesivesFilm/foil adhesivesAntioxidantAdhesive glue
The invention discloses a PVC baking varnish adhesive tape for a metal baking varnish vehicle. The adhesive tape comprises an original film and glue, the glue is arranged at the bottom of the original film, the glue and the original film are bonded, the area of the bottom surface of the original film is matched with the area of the glue, and the thickness of the original film is greater than that of the glue. By adding a proper amount of antioxidant into the glue and the original film of the adhesive tape, the service life of the adhesive tape can be prolonged, the adhesive tape can be prevented from being oxidized and corroded, the stability of the original film of the adhesive tape can be enhanced by utilizing a liquid barium-zinc stabilizer and a powdery stone powder stabilizer in the original film, meanwhile, the heat resistance of the PVC stoving varnish adhesive tape is also enhanced, the adhesive tape can be used in a high-temperature environment, and the applicability of the adhesive tape is enhanced. Terpene resin, hydrogenated resin and liquid phenolic resin are added, the unwinding force of the adhesive tape can be improved, meanwhile, the diffusivity of glue is reduced, and after the adhesive tape is torn off from an external object, the residual glue on the object is less, and the adhesive tape is convenient to clean.
Owner:万洲胶粘制品(江苏)有限公司
Absorption core body
The invention discloses an absorption core body, which comprises an absorption layer and at least one diffusion liquid storage layer connected with the lower surface of the absorption layer; the absorption layer comprises a non-woven fabric layer and SAP arranged in the gap of the non-woven fabric layer; the absorption layer is provided with X first diversion grooves which divide the absorption layer into a plurality of absorption areas; the diffusion liquid storage layer comprises the non-woven fabric layer and the SAP arranged in the gap of the non-woven fabric layer, and Y second guide grooves are formed in the diffusion liquid storage layer; on the diffusion liquid storage layer, the opposite bulge around the second diversion grooves is connected with the lower surface of the absorption layer; X and Y are positive integers, and Y >= X. According to the absorption core body, the air permeability and the liquid permeability can be improved to the maximum extent, specific surface areaand porosity are high, the liquid diversion infiltration speed is ultra-fast, and instantaneous liquid trapping capacity is strong, thereby effectively improving the overall utilization rate of the core body.
Owner:HUNAN COSOM CARE PROD
Copper electroplating solution applied to dry etching method copper interconnection Damascus and copper electroplating method thereof
The invention discloses an electro-coppering solution applied to dry etching method copper interconnection Damascus and an electro-coppering method thereof. The electro-coppering solution comprises the following components by mass concentration: 5-20g / L of copper salt; 30-90 mg / L of a composite conductive agent; 10 to 15 mg / L of an accelerator; 1-8 g / L of a complexing agent; 20 to 60 mg / L of a surfactant; 15-45 mg / L of a compound stabilizer; and 0.1-0.5 g / L of a reducing agent. According to the solution, the phenomenon that the performance of a device is damaged due to atomic diffusion between copper and silicon is avoided; according to the scheme, the chlorine-free accelerator is used, damage to a base material is avoided, and electroplating can be achieved under the normal-temperature condition; and the step of depositing the conductive copper in advance is not needed, so that the technological process is shortened.
Owner:SHENZHEN CHENGGONG CHEM
Nickel slurry for positive blocking spreading layer electrode of crystal silicon solar battery and preparation method thereof
InactiveCN106297947ALow costSmall diffusivityNon-conductive material with dispersed conductive materialPhotovoltaic energy generationCopper atomSlurry
The invention discloses nickel slurry for a positive blocking spreading layer electrode of a crystal silicon solar battery. The nickel slurry is composed of 85-95 wt% of nanometer nickel powder, 1-5 wt% of glass powder and 4-14 wt% of organic carrier. The nickel slurry is prepared by placing an organic carrier in a constant-temperature container to heat and stir, orderly adding the nanometer nickel powder and the glass powder in the container, and then placing the prepared mixture in a three-roll mill to grind; then filtering by a silk screen. The nickel slurry is preset at the positive face of the crystal silicon battery and dried to obtain a blocking spreading layer nickel electrode; the blocking spreading layer nickel electrode used as the positive nickel / copper / aluminum / tin base metal composite electrode of the crystal silicon solar battery can prevent copper atoms from spreading to silicon.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Open-type thermal buffering device and method
ActiveCN108412060AFacilitate heat exchangeGood for thermal energy storageClimate change adaptationPassive housesHeat flowThermal diffusion coefficient
The invention discloses an open-type thermal buffering device and method. The open-type thermal buffering method comprises the steps that materials with anisotropic thermal diffusivity are subjected to stretching and transformation; and the stretched plate-type materials are subjected to annular deformation, and thermal diffusivity after the coordinate of the plate-type materials is transformed isobtained. According to the open-type thermal buffering device and method thereof, acute change of the exterior temperature can be smoothed, the average temperature of the outside world is quickly achieved, and the open-type thermal buffering device is not isolated with the outside world and can communicate with the outside world; and the open-type thermal buffering device is a passive device, energy saving and environmental protection are achieved, both thermal sources and cold sources are taken from the external environment, and the open-type thermal buffering device and method can be widelyapplied to the condition that periodic thermal pulses ate converted into uniform thermal flow.
Owner:CHANGSHU ZJU INST FOR OPTO ELECTRONICS TECH COMMLIZATION IOTEC
al/al of td/drm process for semiconductor 8-inch wafer thin film process 2 o 3 Regeneration method of parts
ActiveCN108573855BFast migrationLow viscositySemiconductor/solid-state device manufacturingUltrasonic assistedThin membrane
The invention relates to a regenerating method for an Al / Al2O3 part of a TD / DRM process of a semiconductor 8-inch wafer film process. The method comprises the steps that dry ice particles are sprayedand cleaned to regenerate the surface of the part; local temperature difference change formed by thermal energy absorption of dry ice during a sublimation process is used to generate a 'shear stress'between a substrate and a cleaned object, and the cleaned object is quickly peeled off from the surface of the substrate; a Venturi nozzle can generate a carbon dioxide gas stream containing more dryice particles; ultrasonic assisted supercritical CO2 cleaning regenerates the inner surface, the chamber and the groove of the part; and supercritical CO2 easily penetrates into the micropores and thechamber or groove of the part to dissolve pollutants, so that the pollutants migrate fast in supercritical CO2 to achieve the purpose of cleaning. Ultrasonic assisting further improves the cleaning effect and efficiency. The regeneration time and cost are shortened. The regenerating method has the advantages of simple process, environmental protection, being pollution-free and good regeneration effect, does not damage the semiconductor part, and has no impact on the performance of the part.
Owner:苏州珮凯科技有限公司
Energy plant ecological interception, purification and restoration system and method for copper-cadmium heavy metal polluted site
ActiveCN114798714AGive full play to the normal ecologyFully functionalContaminated soil reclamationFood chainSoil heavy metals
The invention discloses a copper-cadmium heavy metal polluted site energy plant ecological intercepting, purifying and repairing system which comprises an isolation wall body arranged on the periphery of a polluted site in a surrounding mode, a plurality of liquid passivator filling modules distributed in the polluted site and energy plants planted on the polluted site. The liquid passivator filling module is used for uniformly adding a liquid passivator into the soil of the polluted site, the energy plants are planted in the soil of the polluted site and are cultivated and managed, and after the energy plants grow to the mature period, the overground parts of the energy plants are harvested or the energy plants are integrally removed from the polluted soil. The invention further discloses a working method of the system. Normal ecological and economic functions of the polluted land are brought into full play, high-valued utilization of the heavy metal polluted land is achieved, energy plants are vigorously developed through the heavy metal polluted land, soil heavy metal pollution can be effectively remedied, the way that heavy metal enters a food chain can be cut off, and food safety is guaranteed.
Owner:HUBEI POLYTECHNIC UNIV +2
Flexible color filter substrate using phase change ink and preparation method thereof
ActiveCN103797562BAvoid color mixingReduce light leakageSemiconductor/solid-state device manufacturingNon-linear opticsColor gelEngineering
Owner:LG CHEM LTD
Transistors and methods of forming them
ActiveCN104064463BPrevent penetrationAvoid enteringSemiconductor/solid-state device manufacturingSemiconductor devicesEngineeringSemiconductor
Owner:SEMICON MFG INT (SHANGHAI) CORP
High-stability self-linking MXene nanosheet, and preparation method and application thereof
PendingCN113800521AImprove antioxidant capacityImprove electrical performanceSpinal electrodesTitanium carbideIn situ polymerizationEngineering
The invention provides a high-stability self-linking MXene nanosheet, and a preparation method and application thereof, and particularly provides a surface-modified MXene nanosheet. The MXene nanosheet is provided with Na ions and a sulfonic acid intercalation layer, and meanwhile, the surface of the MXene nanosheet is also provided with a polydopamine layer and a polyethylene dioxythiophene layer; the polydopamine layer and the polyethylene dioxythiophene layer are arranged in sequence; and specifically, firstly, a polydopamine layer is polymerized on the surface of an MXene nanosheet with Na ions and a sulfonic acid intercalation layer, and then a polyethylene dioxythiophene layer is polymerized in situ. Various modifications of the MXene nanosheet interact, and various properties such as physical and chemical stability, film-forming ability and biocompatibility of the MXene nanosheet in a living body are enhanced, so that the MXene nanosheet can be used as an electrode modification material, a peripheral nerve cell repair material, a wire of a neural electrode, a site of a central nerve electrode and the like.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
A kind of cadaver specimen angiography filler and preparation method thereof
The invention relates to an angiography technology and an anatomy and casting technology of a body sample and specifically discloses a body sample angiographic filler and a preparation method thereof. The filler consists of E-51 epoxy resin, 2,4,6-tri(dimethylamino methyl) phenol (DMP-30), polypropylene glycol diglycidyl ether (D-1217), a T-31 epoxy resin curing agent and a metal oxide powder contrast agent (zinc oxide, titanium dioxide, cuprous oxide and chromium sesquioxide). The angiographic filler disclosed by the invention is simple to prepare, easy to regulate in concentration and color and hard to decolorize, and has the characteristics of being rapid in automatic coagulation, small in percentage of contraction, high in toughness, low in cost and the like. CT reconstruction of blood vessel images of a human body sample or an animal body sample (or organ) have the advantages of being clear, full, continuous, free of fake shadows and burrs and the like.
Owner:黄海龙
Process for extracting and refining lavender oil
InactiveCN1295310CLow extraction and separation temperatureMild conditionsEssential-oils/perfumesLiquid solutions solvent extractionWaxLavender oil
Owner:GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Low-diffusivity liquid crystal mixture and application thereof
ActiveCN114196418ASmall diffusivityLow viscosityLiquid crystal compositionsCrystallographyLiquid-crystal display
The invention provides a low-diffusivity liquid crystal mixture which is particularly suitable for producing TN, IPS and FFS type liquid crystal display devices in a novel ODF liquid crystal injection process.
Owner:JINGMEISHENG OPTOELECTRIC MATERIAL NANJING
Ex-situ presulfurizing method of hydrogenation catalyst
ActiveCN101590437BReduce pollutionImprove pollutionCatalyst activation/preparationRefining to eliminate hetero atomsPolymer scienceOxidation state
The invention provides an ex-situ presulfurizing method of a hydrogenation catalyst, adopting thioacetamide (CH3CSNH2) as a vulcanizing agent to pretreat the hydrogenation catalyst in oxidation state. The hydrogenation catalyst is mainly used for treating hydrocarbon materials. The vulcanizing agent can be used separately, or can be used in combination with other sulfides. The vulcanizing agent prepared by the method in the invention has the advantages that the cost is low, the method can solve the existing problem of high production cost of the organic vulcanizing agent; furthermore, the technique has the advantages of easy preparation method and equipment, little pollution and easy operation and the like; on the basis of the above advantages, the presulfurizing catalyst prepared by the presulfurizing method in the invention can reach or surpass the effect of in-situ presulfurizing method featuring complex operation and high cost, thus having wide application prospect in the ex-situ presulfurizing technique of hydrogenation catalysts.
Owner:BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD +1
A reverberatory furnace for sacrificial anode production
ActiveCN113503734BHigh parameter accuracyReduce wasteIncreasing energy efficiencyCrucible furnacesFlue gasMetallic materials
The invention discloses a reverberatory furnace for sacrificial anode production, which belongs to the field of reverberatory furnaces. A reverberatory furnace for sacrificial anode production includes a protective reverberatory furnace. The left end of the protective reverberatory furnace is fixed with a diversion control gas plate through expansion bolts, which can The gas filled in the protective reverberatory furnace is restrained and guided by the telescopic diversion arc to reduce its diffusivity so that it can be fully utilized by the combustion flame and reduce its contact with the metal material on the lower side of the protective reverberatory furnace The probability of metal materials being oxidized reduces the probability of metal materials being oxidized, thereby effectively suppressing the generation of flue gas while reducing the oxidation loss of metal materials, reducing the waste of metal materials, and reducing the production cost of sacrificial anodes, thus improving its performance. Economic benefits, and the self-regulation of the restraint ability of the telescopic drainage arc through the gas self-temperature adjustment system reduces the difficulty of controlling process parameters and improves the production efficiency of the protective reverberatory furnace.
Owner:南通海门鑫瑞船舶配件有限公司
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