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243 results about "Watch glass" patented technology
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A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance and as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, so gas exchanges still occur. When used as an evaporation surface, a watch glass allows closer observation of precipitates or crystallization, and can be placed on a surface of contrasting color to improve the visibility overall. Watch glasses are also sometimes used to cover a glass of whisky, to concentrate the aromas in the glass, and to prevent spills when the whisky is swirled. Watch glasses are named so because they are similar to the glass used for the front of old-fashioned pocket watches. In reference to this, large watch glasses are occasionally known as clock glasses.
Full-automatic alignment and assembly machine
ActiveCN105196032ASimple structureEasy to useGripping headsMetal working apparatusWatch glassAdhesive
Owner:BOZHON PRECISION IND TECH CO LTD
Three-dimensional television system, three-dimensional television television receiver and three-dimensional image watching glasses
InactiveUS20100134602A1Avoid crosstalkHigh priceTelevision system detailsColor television detailsTelevision receiversWatch glass
The present invention realizes stereoscopic television broadcasting which can reproduce a stereoscopic image best in state of stereoscopic viewing and a receiver for the stereoscopic television broadcasting.In stereoscopic television broadcasting, a reference size of a display of a receiver is determined, images for right and left are displayed on the display with a reference size in a superimposing manner, and transmission is performed such that a distance between the same corresponding points of an infinite subject image is reproduced and displayed to be equal to an interpupillary distance of a human.
Owner:INABA MINORU
Preparation method of flame-retardant/super-hydrophobic cotton fabric
ActiveCN103243545APerfect combination of superhydrophobic propertiesThe perfect combination of flame retardancyVegetal fibresEpoxySolvent
The invention discloses a preparation method of a flame-retardant / super-hydrophobic cotton fabric and belongs to the technical field of functional materials. The method disclosed by the invention comprises the following steps of: (1) cleaning and drying a cotton fabric; (2) carrying out amination on nano-zinc oxide particles via aminopropyl methyl diethoxysilane with alcohol as a solvent; (3) preparing an acetone solution containing epoxy resin, soaking the clean cotton fabric into the acetone solution for epoxidation; (4) soaking the cotton fabric after the epoxidation into the mixed solution obtained in the step (2), taking out the cotton fabric and then putting the cotton fabric into a clean watch glass, and drying at room temperature; and (5) preparing a hydrophobic modified solution, soaking the cotton fabric obtained in the step (4) into the hydrophobic modified solution for modification, bleaching by using methanol, and drying to obtain the flame-retardant / super-hydrophobic cotton fabric. The preparation method of the flame-retardant / super-hydrophobic cotton fabric has the advantages of simple process, low economic cost, short period, small energy consumption, no need of complex special devices and no various follow-up problems, thereby having great application prospect.
Owner:NORTHEAST FORESTRY UNIVERSITY
Preparation method for cuprous oxide micron/nano crystal with controllable morphology
InactiveCN102583499AGood dispersionControl growth characteristicsNanotechnologyCopper oxides/halidesMicro nanoWatch glass
The invention relates to a preparation method for cuprous oxide micron / nano crystal with controllable morphology, relating to the preparation method for the cuprous oxide micron / nano crystal. The invention mainly solves the technical problems of high cost and environmental pollution in the preparation process of the micron / nano cuprous oxide. The method comprises the following steps of: 1, dissolving copper salt into ultrapure water, pouring lactic acid, continuously stirring, regulating a pH value, cooling to the temperature of 25 DEG C, keeping constant volume, measuring the pH value, and obtaining solution A; 2, moving the solution A to a hydrothermal reaction kettle, sealing the reaction kettle, putting the hydrothermal reaction kettle into a drying oven, keeping the temperature, naturally cooling to a room temperature, centrifugally washing by using the ultrapure water, centrifugally washing by using anhydrous ethanol, transferring the reaction kettle onto watch glass, and drying the reaction kettle in the drying oven; and thus obtaining the cuprous oxide micron / nano crystal. The preparation method for the cuprous oxide micron / nano crystal with the controllable morphology has the advantage of simpleness and practicability, simple equipment operation, low raw material price, easy synthesis, less pollution to environment and high synthetic concentration, the problem of the cost of the morphology control and industrialized large-scale synthesis in the prior art is solved, and the industrial production is facilitated.
Owner:HARBIN INST OF TECH
Preparation method of oil-water separation filter paper
InactiveCN102797197ASimple and efficient separation processEfficient separationNon-fibrous pulp additionPaper/cardboardOctadecyltrichlorosilaneSilicic acid
The invention provides a preparation method of oil-water separation filter paper, belonging to the technical field of functional materials. The method comprises the following steps of: (1) sequentially adding ethyl orthosilicate and ammonia water into ethanol for reacting, and standing over night for aging; (2) adding octadecyltrichlorosilane into the aged mixed liquor, magnetically stirring, washing with ethanol, centrifuging, and drying to obtain hydrophobic silica particles; (3) preparing a tetrahydrofuran solution of polystyrene; (4) preparing hydrophobic silica / polystyrene / tetrahydrofuran mixed liquor; and (5) A: soaking filter paper into the mixed liquor, taking the filter paper out of the mixed liquor, putting the filter paper in clean watch glass, and drying at room temperature to obtain the oil-water separation filter paper; or (B) horizontally paving filter paper into clean watch glass, sucking a certain amount of mixed liquor, uniformly coating the mixed liquor on the surface of the filter paper, and drying at room temperature to obtain the oil-water separation filter paper. The method provided by the invention has the advantages of simple process, low economic cost, short period, small energy consumption, no need of complicated special equipment and no subsequent problem, thus the method has wide application prospects in the future.
Owner:NORTHEAST FORESTRY UNIVERSITY
Electronic timepiece including a game mode
ActiveUS7031226B2Same level of interestAdditional componentVisual indicationElectronic time-piece structural detailsWatch glassEngineering
There is disclosed an electronic multi-function wristwatch one of whose operating modes is a memory game which uses the time display means of the watch. In the preferred version comprising an analogue time display, the watch randomly generates a sequence of visual indications such as time values and displays it by means of the hands (3, 4). Then, the player attempts to repeat these indications by entering a sequence of answers by means of control keys (14–19) arranged facing the hour symbols (7) of the dial. These keys preferably comprise electrodes affixed under the watch glass. The watch displays successive sequences each comprising one or more indications more than the preceding sequence. It can also emit corresponding sequences of sounds. The watch / user interface can further comprise push-buttons (11–13) and an alphanumerical LCD display (9).
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
Composite all-solid-state polymer electrolyte and preparation method thereof
ActiveCN104466243AHigh conductivity at room temperatureNot easy to migrateElectrolyte accumulators manufactureSolid state electrolytePolymer science
The invention relates to a composite all-solid-state polymer electrolyte and a preparation method thereof. The composite all-solid-state polymer electrolyte is prepared by adopting the following components and raw materials in parts by weight: 1 part of carboxylic acrylonitrile butadiene rubber, 0.02-0.03 part of vulcanizing agents, 0.2-0.6 part of lithium salt and 0.01-0.5 part of a compound (IL-SiO2) of 1-carboxymethyl-3-methylimidazole bis(trifluoromethane)sulfonimide salt and mesoporous silica. The preparation method comprises the following steps of: dissolving the carboxylic acrylonitrile butadiene rubber, the lithium salt and the vulcanizing agents into a butanone solution, carrying out ultrasonic dispersion on IL-SiO2 in a butanone solution for 1 hour, mixing, and mechanically stirring for 1 hour; then flatly paving a mixture in a watch glass for normal-temperature evaporation, and after a solution is completely volatilized, milling on a double-roller open mill at the roller temperature of 20-40 DEG C for 1-5 minutes; finally vulcanizing by adopting a press plate vulcanizing machine so as to prepare the composite all-solid-state polymer electrolyte. Compared with the prior art, the composite all-solid-state polymer electrolyte prepared through the method disclosed by the invention has the advantages of higher room-temperature conductivity and excellent mechanical properties.
Owner:SHANGHAI JIAO TONG UNIV
Wearable object such as a timepiece including means for triggering an electronic control function
ActiveUS20100296369A1Cheap componentEasy to installElectric indicationTime-pieces with integrated devicesWatch glassTime function
Portable object such as a timepiece including a dial (4) covered by a watch glass (2), the portable object (1) enclosing an electronic control circuit (16) for at least one time function or non-time related function, the portable object further comprising at least one light source (12) and an associated light sensor (10), which are arranged on the dial (4), the light source (12) emitting, through the glass (2), a light beam, which is at least partially reflected towards the light sensor (10), when it is intercepted by the user's finger (D) placed on the glass (2) of the portable object, the light sensor (10) supplying the electronic control circuit (16) with an electric signal for activating the corresponding function when it detects the light produced by the light source (12) and reflected by the user's finger (D), the portable object being characterized in that the light source (12) emits collimated light while forming, on the glass (2), a spot of defined dimensions which defines the place on the glass (2) where the user has to place his finger.
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
Preparation method of oil-water separation fabric
The invention discloses a preparation method of an oil-water separation fabric, belonging to the technical field of functional materials. The preparation method comprises the following steps of: 1, cleaning and drying the fabric; 2, sequentially adding sodium hydroxide and zinc nitrate hexahydrate particles into water, magnetically stirring, washing with water, centrifuging and drying; 3, carrying out hydrophobic modification on the zinc oxide particles obtained by the method by using stearic acid, washing with alcohol, and drying; 4, preparing a tetrahydrofuran solution of polystyrene, and uniformly dispersing the hydrophobic zinc oxide particles into the tetrahydrofuran solution; and 5, carrying out the method 1 comprising the steps of soaking the fabric into the mixture solution in the step 4, taking out and then placing in a clean watch glass and drying at room temperature, or carrying out the method 2 comprising the steps of spreading the fabric in the clean watch glass, sucking a certain of the mixture solution in the step 4 and uniformly coating on the surface of the fabric, and drying at room temperature to obtain the oil-water separation fabric. The preparation method disclosed by the invention has the advantages of simple process, low economic cost, short period, small energy consumption, no need of complex special devices and no existence of multiple subsequent problems, and has great application prospects in the future.
Owner:NORTHEAST FORESTRY UNIVERSITY
Ultrafast laser pulse method for forming nanopores with diameters of 2 nanometers
ActiveCN102795596AExpand application spaceEnhanced Raman ScatteringNanostructure manufactureBiological testingCarbon filmMaterials science
The invention provides an ultrafast laser pulse method for forming nanopores with the diameters of 2 nanometers. The thickness of a metal film layer where the ultra small nanopores with the diameters of 2 nanometers is formed is about 3nm, the nanopores are discretely formed in the metal film layer, and the diameter of each nanopore is about 2nm. The ultrafast laser pulse method comprises the following steps of: dissolving a sodium citrate crystal and poly-vinyl pyrrolidone (PVP) powder in deionized water to form a chemical coating solution; putting a metal sheet into watch glass, and injecting the chemical coating solution into the upper surface of the metal sheet; putting the watch glass near a focal distance of a condenser in a light path, ablating by using an ultrafast laser pulser to obtain suspension containing metal nano products, dripping the suspension containing the metal nano products to a copper screen covered by a carbon film, and drying to obtain the ultra small nanopore; and a metal film in which the ultra small nanopore are formed is applied to porous metal mask plates during near-field imaging with aperture probes, surface-enhanced Raman scattering, detection of single-pore biomolecules and the like.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI
Electronic timer including game mode
InactiveCN1489012AMechanical clocksElectronic time-piece structural detailsWatch glassDisplay device
There is disclosed an electronic multi-function wristwatch one of whose operating modes is a memory game which uses the time display means of the watch. In the preferred version comprising an analogue time display, the watch randomly generates a sequence of visual indications such as time values and displays it by means of the hands (3, 4). Then, the player attempts to repeat these indications by entering a sequence of answers by means of control keys (14-19) arranged facing the hour symbols (7) of the dial. These keys preferably comprise electrodes affixed under the watch glass. The watch displays successive sequences each comprising one or more indications more than the preceding sequence. It can also emit corresponding sequences of sounds. The watch / user interface can further comprise push-buttons (11-13) and an alphanumerical LCD display (9).
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
Preparation method and application of micro-fluidic chip based on 3D printing technique
InactiveCN104888874ASimple methodReduce manufacturing costLaboratory glasswaresPolyvinyl alcoholRapid processing
The invention provides a preparation method and application of a micro-fluidic chip based on the 3D printing technique. The preparation method comprises the following steps: (1) designing a micro-fluidic pipeline, namely printing filament through a 3D desktop printer, wherein the filament is used as the channel mold plate of the micro-fluidic chip and made of acrylon-bivinyl-styrol copolymer, polylactic resin and vinol; (2) transferring the printed filament into a watch glass and fixing the filament on a substrate, then pouring PDMS colloid, curing, demolding, punching and bonding to prepare the micro-fluidic chip. The invention further relates to the application of the micro-fluidic chip in surface enhanced Raman detection. The preparation method is simple, rapid in processing and very cheap in cost, no complex micro-processing technique such as photo etching and developing is needed and the micro-fluidic chip can be prepared under a general experiment condition; the micro-fluidic chip is convenient to popularize and can be widely applied to the fields of human health, food safety, environment detection and medical diagnosis.
Owner:SHANGHAI JIAO TONG UNIV
Wristwatch
A Wristwatch having a housing (1); a movement (8, 9, 10) lodged in the housing; a watch glass (6) above the housing; a fluid pump (5) driven by the movement for pumping a fluid. And, at least one channel (60) through the glass (6), arranged so that the fluid circulated by the pump (5) reaches the channel, in order to sequentially color various portions of the glass for displaying time indications.
Owner:PRECIFLEX SA
Wearable object such as a timepiece including means for triggering an electronic control function
ActiveUS8942069B2Cheap componentEasy to installVisual indicationElectric indicationWatch glassTime function
Owner:THE SWATCH GRP RES & DEVELONMENT LTD
Method for extracting microcrystalline cellulose from sea squirts and preparing lyotropic cholesteric crystal
The invention relates to a method for extracting microcrystalline cellulose from sea squirts and preparing lyotropic cholesteric crystal, which comprises the steps of: soaking the sea squirts with distilled water, cleaning and only reserving tunics with thin skin scraped out; soaking the tunics with strong base for 6-24h to remove protein and lipid; subjecting the tunics in a buffering solution at 40-90 DEG C to reaction for 1-5h, and repeating the step 2-8 times; placing obtained cellulose on watch glass for drying; crushing to a micrometer or millimeter level; pouring into a beaker containing a proper amount of concentrated acid for hydrolysis, stirring to react for 30min-6h, and adding a large amount of distilled water again for terminating the reaction; and repeatedly centrifuging and dialyzing to remove acid in suspension so as to ensure that the solution outside a dialysis bag to be neutral or subacid finally, and then evaporating for concentration to obtain the lyotropic cholesteric crystal. The method has simple reaction processes, easier control of technological method, rich raw material resources, low cost, good repeatability, environmental protection, no toxicity and lower cost, is easier for mass production, and can be applied to industrial production.
Owner:QINGDAO UNIV OF SCI & TECH
Compound conductive adhesive for electronic packaging and preparation method thereof
InactiveCN103805118AHigh thermal conductivityImprove conductivityEpoxy resin adhesivesElectrically-conducting adhesivesWater bathsThiourea
The invention discloses a compound conductive adhesive for electronic packaging and a preparation method thereof, wherein the compound conductive adhesive for electronic packaging comprises the following materials by mass percent: 25-30% of resin matrix, 68-79.5% of silver powder and 0.5-2% of activated carbon nano tube. The preparation method comprises the steps of adding the carbon nano tube in mixed acid solution and carrying out ultrasonic treatment to obtain suspension mixed liquor, carrying out heating reflux on the suspension mixed liquor, diluting the suspension mixed liquor by using deionized water, carrying out vacuum filtration and washing to neutral so as to obtain a separated carbon nano tube, placing the separated carbon nano tube in watch glass for drying so as to obtain an acidized carbon nano tube, adding the acidized carbon nano tube in activate fluid of thiourea and N,N-dicyclohexylcarbodiimide for ultrasonic treatment, placing the ultrasonically treated carbon nano tube in a water bath for reaction so as to obtain an activated carbon nano tube, proportionally mixing the activated carbon nano tube with silver powder and the resin matrix, and grinding to obtain the compound conductive adhesive for electronic packaging.
Owner:XIAMEN UNIV
Three-dimensional television system, three-dimensional television receiver and three-dimensional image watching glasses
InactiveCN101690247AWithout destroying the sense of distanceEasy to separateSteroscopic systemsInstrumentsWatch glassEyewear
The realization of a three-dimensional television broadcast and its receiver are promoted for making it possible to reproduce a three-dimensional video image in good condition for a three-dimensional view. In a three-dimensional broadcast, the transmission is subjected to that a standard size of a display for a receiver is determined, that left and right images are overlapped and displayed at thesame position on the standard size display, and that the same corresponding points of an infinite distant image are reproduced and displayed at the same interval as that of human eyes.
Owner:稻叶稔
Electronic device and wristwatch
The present invention includes a wristwatch case provided with a watch glass, a dial plate provided in the wristwatch case, and a timepiece module arranged below the dial plate, and the timepiece module has a first antenna arranged in its one end portion so as to receive a high-frequency radio wave for GPS and a second antenna arranged in the other end portion opposing the first antenna so as to receive a standard time radio wave whose frequency differs from that of a radio wave to be received by the first antenna. Accordingly, radio waves for GPS can be received by the first antenna and standard time radio waves can be received by the second antenna arranged opposing the first antenna.
Owner:CASIO COMPUTER CO LTD
Watch with Removable Cover Element and Movable Elements
ActiveUS20130083634A1Simple and easyEasy to observeClockwork casesWatch crystals/clock glassesWatch glassEngineering
This invention discloses a watch comprising a housing comprising a watch case and a fixed attached watch glass, a first annular flange and a second concentric annular flange arranged outside the first flange, thereby defining a groove containing at least one moveable element, wherein said watch glass is attached to one of said flanges and where said watch glass is attached to the first flange, that said watch further comprises a cover element having a top ring with first connection means enclosing a cover glass, that said second flange is provided with second connection means releaseably cooperating with said first connection means and that said cover glass covers said watch glass and said groove.
Owner:HEMBO CLAUS SKODT +1
Method for integrating at least one electronic module in or on the glass of a watch and watch glass obtained by such a method
InactiveUS20060140058A1Improve wear resistanceMaintenance of large optical transparencySynchronous motors for clocksTime-pieces with integrated devicesVitrificationWatch glass
The invention relates to the Integration method of at least one electronic module (1) in or on the glass (3) on watches, generally wristwatches, by means of a non-solid solution (4). The electronic module (1) is injected or positioned with a non-solid solution (4) in a cavity hole (2) in the glass (3), provided for housing the same, or on a part of the surface of the glass (3). The electronic module is perfectly integrated and / or fixed within or on the glass (3), in particular, as a result of the epoxide characteristics and the transparent vitrification of the solution (4).
Owner:WINWATCH
Three-dimensional projection display system based on liquid crystal polarization rotation
InactiveCN102520575ALow costEasy to installStereoscopic photographyOptical elementsCamera lensLens plate
The invention discloses a three-dimensional projection display system based on liquid crystal polarization rotation, which solves the problem that an existing three-dimensional projection display system particularly needs two projectors to respectively project images at a left view angle and a right view angle, and consequently is complicated in adjustment. The three-dimensional projection display system comprises a light source, a beam shaping and shimming device, a projection display chip, a liquid crystal polarization rotator, a sequential control circuit, a projection lens, a projection screen and watching glasses with two lenses in orthogonal polarization analysis directions. The three-dimensional projection display system is capable of realizing three-dimensional projection with a single projector, simple in structure, high in stability, low in cost, fine in three-dimensional effect and applicable to three-dimensional projection display for movie theaters and home entertainment.
Owner:UNIV OF SCI & TECH OF CHINA
Watch assembly having a dial integrally formed in the watch-glass
A watch assembly includes a case, a movement provided at an inner side of the case, hands coupled to the movement for indicating hours, minutes, and seconds, and a watch-glass provided at the case, the watch-glass having a dial so that the hands indicate a character thereon to thereby display the time. The watch assembly provides the dial which is integrally provided at the watch-glass, and various designs including photographic portraits, natural photographs, artistic photographs, sketches, and the like or characters are displayed on the dial, thereby embodying an appearance having a refined design.
Owner:LEE JONG CHAN
Satellite time service watch integrated with small antenna
InactiveCN103838137ASimple designReduce volumeAntenna adaptation in movable bodiesRadiating elements structural formsWatch glassMiniaturization
The invention discloses a satellite time service watch integrated with a small antenna. The satellite time service watch integrated with the small antenna mainly solves the problem of the prior art that miniaturization of a time service watch and flexibility of design of the watch are limited greatly, and therefore requirements of technological development can not be met. The satellite time service watch integrated with the small antenna comprises an annular watch shell, watch glass located on the open part in the top surface of the watch shell, a watch ring connecting the watch shell with the watch glass, a bottom cover located on the open part in the bottom surface of the watch shell, a watch movement placed in the watch shell, a watch handle penetrating through the watch shell to be connected with the watch movement, and a watch belt connected with the watch shell to form a wearable annular structure, wherein the watch movement comprises a watch face located on the side close to the watch glass and provided with a pointer, a circuit board located below the watch face, and a rechargeable battery located below the circuit board, the receiving antenna and a controller are integrated above the circuit board, and a signal processor is integrated below the circuit board. By means of the scheme, the purposes of being small in size and convenient to design are realized, and the satellite time service watch integrated with the small antenna has high practical value and promotion value.
Owner:CHENGDUSCEON ELECTRONICS
Glass cutting and splitting processing method and device
InactiveCN111393019AIncrease profitReduce labor costsGlass severing apparatusGlass productionLaser processingWatch glass
The invention relates to the technical field of laser processing, and discloses a glass cutting and splitting processing method and device, which are applied to watch glass laser cutting and splitting, and the method comprises the following steps: carrying out five-point positioning on watch cover glass at a cutting station; cutting and scribing the watch cover glass according to a set track to obtain a cutting line; using a transplanting manipulator for transplanting the watch cover glass from the cutting station to a splitting station; and generating laser thermal stress at the watch cover glass cutting line according to the set track so as to split the cut watch cover glass under the action of the laser thermal stress. According to the glass cutting and splitting machining method and device, watch cover glass cutting and splitting machining is integrated into circle cutting machining, only manual feeding and discharging are needed in the production process, the rest of cutting, splitting and carrying are all full-automatic machining, and the labor cost is reduced; compared with a traditional mode that a cutter wheel cuts square blocks and then CNC grinding is conducted to form circles, production efficiency is improved, machining processes are reduced, and the glass product utilization rate is increased.
Owner:深圳市青虹激光科技有限公司
Preparation method of carbon nano-tube reinforced silicon-containing hydroxylapatite bone-cement biological material
The invention relates to a method for preparing a nanotube-reinforced silicon-substituted hydroxyapatite and bone cement biomaterial, which comprises the following steps of: mixing a solution of calcium nitrate, a solution of ammonium dibasic phosphate and a solution of urea to obtain D; adding a chemical pure tetraethyl orthosilicate solution into the solution D and placing the mixture in a microwave chemical reactor for reaction to obtain a white suspension; removing a supernatant of the suspension through filtration to obtain a sample E; drying, calcining and grinding the sample E to obtain silicon-substituted hydroxyapatite powder, adding a silane coupling agent and absolute ethanol into the silicon-substituted hydroxyapatite powder and subjecting to mixture to ultrasonic dispersion to obtain F; placing carbon fibers in deionized water, adding carboxymethylcellulose sodium, the sample F and potassium persulfate into the deionized water and subjecting the mixture to ultrasonic dispersion to obtain G; mixing acrylic acid and itaconic acid to obtain a mixed solution H1; adding sodium citrate into the mixed solution H1 to obtain a mixed solution H2; and placing a sample of K in a watch glass, adding the solution H2I into the watch glass, transferring the mixture into a mould for curing and obtaining the target product. In the composite prepared by the method, the carbon fibers distribute uniformly and are desirably combined with a substrate interface, so the composite is a biomedical composite with wide application prospect.
Owner:SHAANXI UNIV OF SCI & TECH
Porous carbon material taking polyvinylidene fluoride as precursor and preparation method
InactiveCN105293473AAdjustable porous structureUniform pore size distributionWatch glassTube furnace
The invention relates to a porous carbon material taking polyvinylidene fluoride as a precursor and a preparation method, belonging to the technical field of porous carbon material production. The method specifically comprises the steps of sufficiently dissolving polyvinylidene fluoride raw powder and an additive in a solvent according to a mass ratio under a certain temperature, flow-casting obtained solution on clean watch glass to form a thin layer, drying at 40 DEG C to obtain a polyvinylidene fluoride slice, and heating the polyvinylidene fluoride precursor to 500 to 1000 DEG C under nitrogen protection in a tube furnace for carbonization, thus obtaining the porous carbon material. The method is simple and convenient in operation process and free of complex production equipment, the product can be obtained only by the process of dissolving, curing and high temperature carbonization without subsequent treatment; the obtained carbon material has an adjustable porous structure, the pore size distribution is uniform and is 2 to 5nm, and a specific surface area range is 700 to 1200m<2> / g.
Owner:TIANJIN POLYTECHNIC UNIV
Radio controlled wristwatch
InactiveUS20060291334A1Easy to insertLow costTime indicationElectronic time-piece structural detailsWatch glassSubject matter
The subject matter of the invention is a radio wristwatch with a receiving unit, an aerial (16) and a clockwork that are all housed in a casing (30), said casing (30) including a substantially annular casing frame (32), characterized by a separate container module (10) that accommodates the receiving unit, the aerial (16) and the clockwork, a glass ring (36) retaining a watch-glass (34) being removably mounted on the upper side of the casing frame (32), a bottom (38) being firmly inserted on the lower side of the casing frame (32) and the container module (10) being form-fittingly inserted from the top into the casing frame (32) and fixed in the casing by said glass ring (36).
Owner:ARTCO
Magnolia biloba seed treatment method
The invention provides a Magnolia biloba seed treatment method. The method can break the dormancy of Magnolia biloba seeds to make the Magnolia biloba seed reach an instant germination effect. The method comprises the following steps: 1, acquiring the seeds, placing the acquired fresh seeds on sand paper, kneading by hands to rub the seeds with the sand paper in order to shed the wax of testae of the seeds, rinsing the seeds by clear water after the shedding of the wax of the testae of the seeds, and screening to remove shriveled seeds; 2, placing the seeds obtained in step 1 in a watch glass, and carrying out poikilothermic changing treatment of the seeds three times, wherein the poikilothermic treatment comprises the procedures of treating at 25-27DEG C for 12h and then treating at 4-5DEG C for 12h, sufficient illumination is applied to the seeds at the last one hour of each time of the higher temperature treatment, and the illumination intensity is 2500-2800lx; and 3, immersing the seeds obtained in step 2 in a nutrient solution I for 4-5h, immersing the seeds in a nutrient solution II for 5-6h, taking out the seeds, and airing to obtain dry seeds which can be instantly sowed.
Owner:溧阳市天目湖保健品有限公司
Co-SBA-16 mesoporous molecule sieve synthesis method
InactiveCN103285908AHigh catalytic activitySimple conditionsOrganic chemistryMolecular sieve catalystsSynthesis methodsSolvent
The invention provides a method of a Co-SBA-16 mesoporous molecule sieve used for directly hydroxylating the benzene to be combined in phenol, and relates to a Co-SBA-16 synthesis method. A purpose of the present invention is to mainly solve problems of harsh synthesis conditions, difficult control, long period and low catalysis activity of the existing cobalt-loaded SBA-16 type mesoporous silicon molecule sieve. The method comprises: 1, adding F127 and anhydrous ethanol to a bottle A, and sequentially carrying out an ultrasound treatment and stirring; 2, adding cobalt nitrate, anhydrous ethanol, tetraethyl orthosilicate and HCl to a bottle B, and sequentially carrying out an ultrasound treatment and stirring; 3, adding HCl to the stirred solution in the bottle A, stirring, adding 1,3,5-trimethylbenzene, and stirring; 4, after stirring in the bottle B, heating, and continuously stirring; and 5, completely transferring the solution in the bottle A to the bottle B, stirring, placing in a baking oven, pouring to a watch glass, evaporating the solvent, taking the solid substance, and baking to obtain the finished product. The method is used for directly hydroxylating to be combined in phenol.
Owner:HEILONGJIANG UNIV
Preparation method of pomelo peel oil absorption material
InactiveCN103342990AEasy to operateMild reaction conditionsOther chemical processesWatch glassRound-bottom flask
The invention relates to a preparation method of a pomelo peel oil absorption material, which comprises the following steps of: (1) drying the pomelo peel in the air, cleaning with deionized water to remove impurities and dust on the surface, and drying in an air-blowing drying oven at 60-70 DEG C; (2) removing the yellow peel, making into 1-2cm square pieces, and drying in the air-blowing drying oven at 60-70 DEG C to constant weight for later use; (3) putting 1g of pomelo peel for later use into a round-bottom flask with 150ml of n-hexane; adding 0.5g of oleic acid, and dropwise adding one drop of concentrated sulfuric acid; and performing reflux in a water bath kettle at 65+ / -2 DEG C for 6 hours; and (4) after 6 hours of reaction, filtering with a stainless steel filter screen, and then flushing with n-hexane; and putting the product into a watch glass and drying at 60-70 DEG C to constant weight. The preparation method of a pomelo peel oil absorption material, provided by the invention, has low cost, is simple to operate and is environment-friendly and pollution-free; and compared with the oil absorption material prepared from other raw materials, the obtained oil absorption material has the characteristics of waste recycling, fast oil absorption, large oil absorption multiple and the like.
Owner:SHANGHAI UNIV
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