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369results about How to "Simple preparation technique" patented technology
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Radar system and method of manufacturing same
ActiveUS20130027240A1Increase speedThe signal is accurate and reliableAntenna adaptation in movable bodiesParallel-plate/lens fed arraysRadar systemsEngineering
A radar system (100) is described including a transmitting assembly (10), a receiving assembly (20), a control unit (30) and a signal processing unit (40). The transmitting assembly (10) receives an input signal (31) and transmits an incident radar signal (2). The transmitting assembly (10) includes a Rotman lens (12) having a lens cavity (74), a plurality of beam ports (60), a plurality of array ports (62) and a patch antenna assembly (14). The lens cavity (74) has a lens gap (h) between 10 microns to 120 microns, and preferably 40 microns to 60 microns. The patch antenna assembly (14) includes a plurality of antenna arrays (130) operable to receive a plurality of time-delayed, in-phase signals from the Rotman lens (12) and to transmit the incident radar signal (2) towards a target (4). The receiving assembly (20) receives a reflected radar signal (6) and produces an output signal. The signal processing unit (40) compares the input signal (31) to the output signal and implements an algorithm determining the range, velocity and position of the target (4).
Owner:UNIVERSITY OF WINDSOR
Power-MOSFETs with Improved Efficiency for Multi-channel Class-D Audio Amplifiers and Packaging Thereof
InactiveUS20080252372A1Lower on-resistanceSimple preparation techniqueTransistorSemiconductor/solid-state device detailsGround contactAudio power amplifier
A stereo class-D audio system includes a first die including four monolithically integrated NMOS high-side devices and a second a second die including four monolithically integrated PMOS low-side devices. The audio system also includes a set of electrical contacts for connecting the high and low-side devices to components within the a stereo class-D audio system, the set of electrical contacts including at least one supply contact for connecting the drains of the high-side devices to a supply voltage (Vcc) and at least one ground contact for connecting the drains of the low-side devices to ground, the electrical contacts also including respective contacts for each source of the high and low-side devices allowing the source of each high-side device to be connected to the source of a respective low-side device to form two H-bridge circuits.
Owner:ADVANCED ANALOGIC TECHNOLOGIES INCORPORATED
Random access memory device utilizing a vertically oriented select transistor
InactiveUS7205598B2Avoid lostHigh densityTransistorSolid-state devicesRandom access memoryVertical channel
Owner:OVONYX MEMORY TECH LLC
Radar system and method of manufacturing same
ActiveUS8976061B2Increase speedThe signal is accurate and reliableAntenna adaptation in movable bodiesRadiating elements structural formsRadar systemsEngineering
A radar system (100) is described including a transmitting assembly (10), a receiving assembly (20), a control unit (30) and a signal processing unit (40). The transmitting assembly (10) receives an input signal (31) and transmits an incident radar signal (2). The transmitting assembly (10) includes a Rotman lens (12) having a lens cavity (74), a plurality of beam ports (60), a plurality of array ports (62) and a patch antenna assembly (14). The lens cavity (74) has a lens gap (h) between 10 microns to 120 microns, and preferably 40 microns to 60 microns. The patch antenna assembly (14) includes a plurality of antenna arrays (130) operable to receive a plurality of time-delayed, in-phase signals from the Rotman lens (12) and to transmit the incident radar signal (2) towards a target (4). The receiving assembly (20) receives a reflected radar signal (6) and produces an output signal. The signal processing unit (40) compares the input signal (31) to the output signal and implements an algorithm determining the range, velocity and position of the target (4).
Owner:UNIVERSITY OF WINDSOR
Random access memory device utilizing a vertically oriented select transistor
InactiveUS20070145464A1Avoid lostHigh densityTransistorSolid-state devicesRandom access memoryVertical channel
A memory structure has a vertically oriented access transistor with an annular gate region. A transistor is fabricated such that the channel of the transistor extends outward with respect to the surface of the substrate. An annular gate is fabricated around the vertical channel such that it partially or completely surrounds the channel. A buried annular bitline may also be implemented. After the vertically oriented transistor is fabricated with the annular gate, a storage device may be fabricated over the transistor to provide a memory cell.
Owner:OVONYX MEMORY TECH LLC
Method for preparing male sterile bodies of argopecten irradians
InactiveCN102217561ARaise the ratioThe technical effect is stableClimate change adaptationPisciculture and aquariaArgopecten irradiansGonad
The invention discloses a method for preparing male sterile bodies of argopecten irradians. Argopecten purpuratus which is homogeneous with the argopecten irradians, has the same chromosome number and similar gamete form and size as the argopecten irradians and is androgynous is selected to hybridize with the argopecten irradians so as to prepare male sterile bodies. The testes of the male sterile bodies are gradually substituted by ovaries together with the development of gonads; and when the gonads are mature, the whole gonads are orange red special in female, can only produce ova and cannot produce sperms. The method disclosed by the invention has the advantages of high proportion of sterile bodies, stable technical effect, relative simpleness, easiness for popularization.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Additive agent for reducing aldehydes matter content in cigarette flue gas, production method and application thereof
ActiveCN101297715AExpand the scope ofSimple preparation techniqueTobacco smoke filtersAldehydeFlue gas
This invention provides an additive which can reduce the phenols content of cigarette fumes selectively; the additive is an inorganic carrier or acetate fiber which can load ionic liquid, is added into the filter of acetate fiber so as to produce a binary complex filter, thus being capable of reducing the phenols content of cigarette fumes high selectively and having no effect on the cigarette mouth-feel in the process of reducing the damage to smokers. The additive preparation technology of the invention is simple, and the additivity is convenient and the additive can meet the requirement of industrial production.
Owner:CHINA TOBACCO HUNAN INDAL CORP
Aerodynamic truck trailer airflow control device
InactiveUS20060252361A1Reduce splashReduce sprayingAir-treating devicesVehicle heating/cooling devicesTruck-trailerAerodynamic force
An aerodynamic airflow control device is preferably mounted either in a rigid or slidable manner to an underside of a truck trailer just forward of the trailer tires and axles to better manage airflow around the trailer tire and axle assembly. In operation, the device preferably collects and routs impinging air to exit between the trailer tires and under the trailer axles to reduce road spray while keeping tires and brakes running cooler and while further decreasing parasitic drag of the truck and trailer unit as it moves along the highway.
Owner:AIRMAN
Spring strut arrangement for wheel suspensions of motor vehicles
InactiveCN101896369AWeight advantageReduce reaction forceResilient suspensionsVehicle springsHelical coilShock absorber
The invention relates to a spring strut arrangement for wheel suspensions of motor vehicles formed of a telescoping shock absorber (12), a suspension spring element (14) preferably designed as a helical compression spring, and a storage spring element (16) preferably designed as a helical coil spring, wherein the spring elements (14, 16) are supported by spring caps (28, 30) on the body (22) of the motor vehicle and on a wheel suspension element (24), and third spring cap (34) located therebetween is displaceably guided relative to the body (22) along the longitudinal axis of the shock absorber by means of an electrically driven positioning drive (32) disposed within the spring elements (14, 16), wherein the positioning drive (32) comprises a positioning spindle (36) rotatably supported about the shock absorber and a positioning nut (40) connected to the displaceable spring cap (34). According to the invention, the shock absorber (12) is disposed on the body (22) of the motor vehicle with the damping tube (46) upward, and the positioning spindle (36) is rotatably supported on the damping tube (46).
Owner:AUDI AG
Method for preparing concrete by taking manganese residue-steel residue-limestone powder as admixture
The invention discloses a method for preparing concrete by taking manganese residue-steel residue-limestone powder as admixture. Raw materials comprise cementing material, aggregate, admixture and water. The cementing material is formed by compounding cement, manganese residue, steel residue and limestone powder, and an activator is an alkaline activator or a sulphate activator, specific surface areas of manganese residue micro power, steel residue micro power and the limestone powder are respectively controlled to be 400-600m<2> / kg, 500-800m<2> / kg and 600-900m<2> / kg. Small particle size continuous grading coarse aggregate is adopted, and the content of 5-20mm broken stone is higher than 85%. The activator is dissolved in water in advance and is doped with mixing water. The obtained concrete has good working performance, strength in 28 days is improved by about 8% compared with the concrete which independently adopts fine slag powder, cost is reduced by nearly 20%, durabilities such as contractility resistance, freezing resistance, marine denudation resistance and the like can be obviously improved. The process in the invention is simple, C20-C60 grade concrete can be prepared, industrial waste residue doping content in the concrete can be obviously improved, and good practical value can be obtained.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
Actuation of valves using electroosmotic pump
InactiveUS20130153797A1Increase the electric field strengthIncrease pressureOperating means/releasing devices for valvesMicrobiological testing/measurementEngineeringAnode
A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.
Owner:GENERAL ELECTRIC CO
Nano-sized anti-glare peep-proof fingerprint-resistant screen protecting film
ActiveCN102717549AExcellent scratch resistanceInnovative materials and treatmentsSynthetic resin layered productsFingerprintIn situ polymerization
The invention discloses a nano-sized anti-glare peep-proof fingerprint-resistant screen protecting film, which comprises an organic silica gel layer, a peep-proof polarization film, a bonding agent layer, a PET (Polyester) film layer and an anti-glare fingerprint-resistant nano coating from inside to outside. The anti-glare fingerprint-resistant nano coating takes silicon-fluorine polymers as a substrate, and is prepared by forming a layer of silicon dioxide or calcium carbonate with nano microbumps on the surface of a PET film in a in-situ polymerization manner; the peep-proof polarization film comprises a plurality of strip-shaped photoresists that are arranged in parallel, the cross section of each strip-shaped photoresist is square, and a non-transparent interlayer is arranged on the strip-shaped photoresist; and the interval of the photoresist is half of the thickness of the photoresist. The surface hardness of the nano-sized anti-glare peep-proof fingerprint-resistant screen protecting film is greater than 4H, and the fingerprint-resistant performance of the nano-sized anti-glare peep-proof fingerprint-resistant screen protecting film obviously surpasses the commercial conventional merchandises; the peep-proof polarization film adopts photoresist solidification and non-transparent matter filling technologies, and has greater innovations in material and processing method; in addition, a PC (polycarbonate) film is replaced by the PET film with the effects of tough texture, good stiffness, high transparency and low price, so that the quality is ensured, and the cost is lowered at the same time.
Owner:SHANGHAI BENPU TECH DEV
Efficient calcium thioaluminate type bulking agent and its preparing process
InactiveCN1369455ANo reduction in quality requirementsLower quality requirementsGypsumMaterials science
An efficient calcium thioaluminate type bulking agent, an improvement on CAS-type one, features that the lime stone, gypsum and bauxite are first calcined in rotary kiln to prepare clinker, which is them mixed with gypsum and ground while lime stone is added to generate CAS-type bulking agent. Its advantages are high performance and low content of alkali.
Owner:陈智丰
Green synthetic method of controllable superfine metal oxide/carbon nano tube composite material
InactiveCN102040189AUniform and stable fixed loadLarge specific surface areaCatalyst carriersIndividual molecule manipulationCarbon nanotubeActive phase
The invention discloses a green synthetic method suitable for preparing a controllable superfine metal oxide / carbon nano tube composite material, relating to the field of nano science and catalytic composite materials. An active phase comprises multifunctional oxides of TiO2, ZrO2 and Fe2O3. The synthetic method comprises the following steps of: pretreating corresponding metal salts of TiOCl2, ZrOCl2 and Fe(NO3)3 in a DMF(Dimethyl Formamide) solution to form a precursor; adding phenol as a surfactant in the precursor; adding a multi-wall carbon nano tube treated with a proper amount of acid; carrying out slow hydrolytic polymerization and depositing under the condition of heating to form a TiO2 / CNT (Carbon Nano Tube), ZrO2 / CNT and Fe2O3 / CNT / composite material. The method has general applicability to realizing that multifunctional nano metal oxides which are convenient to obtain through hydrolysis are compounded with carbon tubes with hydrophobe surfaces; and the obtained nano composite material is possibly applied to various catalytic fields.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Preparing method and application of nitrogen-doped magnetic biochar
ActiveCN110171830AReduce manufacturing costImprove economyCarbon compoundsWaste based fuelPorosityAgricultural engineering
The invention discloses a preparing method of nitrogen-doped magnetic biochar and application of the nitrogen-doped magnetic biochar to enhancing anaerobic fermentation performance. According to the specific preparing process, with high-nitrogen-content agricultural and forestry waste as the substance basis in combination with industrial waste iron cement, through a hydrothermal carbonizing and high-temperature pyrolysis carbonizing method, an in-situ nitrogen-doped magnetic biochar carrier is prepared. The biochar carrier has the high specific surface area and porosity and high nitrogen and iron content, the pollutant removal and methane yield in the anaerobic fermentation process are remarkably improved, the inhibition of volatile acid in the fermentation process can be relieved, and thehigh efficiency and stability of the anaerobic fermentation performance are guaranteed. The high-additional-value resourceful utilization of agricultural and forestry waste is effectively solved, theanaerobic fermentation performance is better improved, and the method belongs to the economical, environment-friendly 'waste-control-by-waste' novel efficient anaerobic fermentation technology and issuitable for industrial application and popularization.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Preparing method for biological active peptide and titanium alloy hard tissue implanting material
InactiveCN1490058AUniform thicknessHigh hardnessSurface reaction electrolytic coatingSuperimposed coating processElectrochemistryTitanium alloy
A bioactive Ti or Ti alloy used as the hard tissue implantation material is prepared from Ti or Ti alloy through electrochemical treating to generate an oxidized film on surface, chemical treating with alkali solution to generate a porous reticular layer of titanate gel, heat treating to make said gel layer become crystalline, and immersing in human bionic liquid to generate phoshpotite layer. Its advantages are high hardness and binding strength to basic body, and low cost.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Electroosmotic pump and method of use thereof
InactiveUS20130153425A1Increase the electric field strengthIncrease pressureCellsSludge treatmentMembrane configurationChemistry
Owner:GENERAL ELECTRIC CO
Blast furnace titanium slag compounded micro powder used in cement, concrete and mortar
InactiveCN1500758AAchieving mass utilizationReduce manufacturing costSolid waste managementMaterials scienceBlast furnace
The present invention is one kind of composite micro powder of blast furnace titanium slag, which is used as non-active material added into cement, concrete and mortar. The composite micro powder contains blast furnace titanium slag, flyash and steel slag, and is added into cement, concrete and mortar with the amount being more than 10 % of cement. Using the blast furnace titanium slag in large scale can lower the production cost and improve the performance of cement, concrete and mortar.
Owner:PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
Preparation method of high-efficient multicolor-fluorescence water-soluble sulfur oxygen-codoped graphene quantum dot
InactiveCN103833029AEfficient fluorescence electron transfer efficiencyHigh fluorescence electron transfer efficiencyGrapheneEnergy inputCvd grapheneQuantum computer
A preparation method of high-efficient multicolor-fluorescence water-soluble sulfur oxygen-codoped graphene quantum dots relates to the preparation of sulfur oxygen-codoped graphene quantum dots by a one-step synthetic method. The preparation method of high-efficient multicolor-fluorescence water-soluble sulfur oxygen-codoped graphene quantum dots of the invention is characterized in that during preparation, doping and material preparation are combined as a one step; sulfuric acid plays two roles in the reaction, the first one is to provide a doping sulfur source, and the second one is to catalyze intramolecular and intermolecular dehydration of sugar; and the prepared sulfur oxygen-codoped graphene quantum dots have a hexagonal honeycomb structure with good crystallinity. The sulfur oxygen-codoped graphene quantum dots prepared in the invention have the characteristics of water solubility, multicolor luminescence, property stability, large-scale production, low preparation cost, and the like, and thus have great application value in fields of biofluorescence imaging, light emitting diodes, laser diodes, solar cells, detectors, quantum computation, and the like.
Owner:YUNNAN NORMAL UNIV
Method for preparing nano noble metal hydrogenation catalyst by substitution method and its use
InactiveCN1775361ASimple preparation techniquePromote regenerationCatalyst activation/preparationMetal/metal-oxides/metal-hydroxide catalystsNitro compoundDisplacement reactions
The present invention relates to a method for preparing nano noble metal hydrogenation catalyst by using chemical displacement process and its application. It is characterized by that it utilizes metal elementary substance M and salt of noble metal N and makes them undergo the process of displacement reaction to produce elementary substance N, in which the N represents Ru, Rh, Pd, Pt and Ir or their mixture, M represents Zn, Al, Fe, Co and Ni. When the M is terrifically excess, N / M type metal loaded nano noble metal can be produced; and When the N and M are approximate to stoichiometry, the highly-dispersed nano N colloid can be formed, after the stabilizing agent is added, the load type N / S can be prepared, in which S represents C, Al2O3, SiO2, MgO, ZrO2 and CeO2. Said catalyst can be used for hydrogenation reaction of various compounds.
Owner:DALIAN UNIV OF TECH
Optical fiber based polymer core sensor
InactiveUS20100111136A1Simple preparation techniqueHigh thermo-optic coefficientMaterial analysis by optical meansOptical articlesAnalyteRefractive index
An optical fiber based polymer core sensor includes an optical fiber having a core and an end having a cured polymer core affixed to the core of the optical fiber. The cured polymer core extends outward from the end of the optical fiber and has a diameter approximately equal to the core of the optical fiber. Note the cured polymer core can be substantially cylindrical, tapered or geometrically shaped. The optical fiber based polymer core sensor can be used to measure a temperature, measure a strain, measure a distance, measure a refractive index, detect or measure an analyte, detect a toxin, detect a biological agent, monitor a chemical process, or a combination thereof
Owner:BOARD OF RGT THE UNIV OF TEXAS SYST
Metal mask plate
InactiveCN1553283AReduce the difficulty of manufacturing technologyLow costPhotomechanical exposure apparatusMicrolithography exposure apparatusCopperNanometre
A mask plate comprises base plate, top surface or bottom surface and metal film layer pattern of chromium and gold or copper or silver or aluminium in the same pattern at both of top and bottom surfaces. It works as that a light is used to shine metal mask plate with micro-fine pattern structure to generate plasma wave in short wavelength for carrying out photoetching with normal wavelength light or long wavelength light passing through metal mask based on propagation characteristic of nanopattern hole and seam.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Actuation of valves using electroosmotic pump
InactiveUS8603834B2Easy to controlIncrease the electric field strengthOperating means/releasing devices for valvesMicrobiological testing/measurementEngineeringMembrane configuration
A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.
Owner:GENERAL ELECTRIC CO
Multifunctional compound microecological preparation nano-selenium-recombination expression VIP (vasoactive intestinal peptide)-lactococcus lactis and preparation method
InactiveCN108753670AMany functionsLow acute toxicityBacteriaMicroorganism based processesStaphylococcus lactisVasoactive intestinal peptide
The invention relates to multifunctional compound microecological preparation nano-selenium-recombination expression VIP (vasoactive intestinal peptide)-lactococcus lactis and a preparation method. Toxic sodium selenite can be converted into non-toxic red simple-substance nano-selenium, and synthesized nano-selenium is enriched in lactococcus lactis NZ9000 in cells. The invention also discloses amethod for preparing a multifunctional compound microecological preparation SENPs-rVIP-L.lactis NZ9000 based on lactococcus lactis NZ9000. The problems that existing selenium supplementing additives have high toxicity action and low bioavailability and easily cause environment pollution, existing production technical procedures are complicated, the cycle is long and the production cost is high andthe problems about remaining of antibiotics, drug resistance and the like are solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Micro spherical hollow structure nickel-based hydrogenation catalyst as well as preparation method thereof
InactiveCN103962140AIncrease the areaHigh strengthOrganic compound preparationCarboxylic acid esters preparationDimethyl terephthalateOpen framework
The invention discloses a micro spherical hollow structure nickel-based hydrogenation catalyst as well as a preparation method thereof in the technical field of catalyst preparation. The method comprises the following steps: controlling the morphology of an aluminum raw material serving as a mold plate which is consumed gradually along with the reaction, inducing hydrotalcite assembly to obtain a micro spherical hollow hydrotalcite assembly body, and carrying out in-situ reduction to obtain the micro spherical hollow nickel-based catalyst. The catalyst material obtained by preparation has high specific surface area, and the internal empty cavity structure and the abundant open-framework structures have great actual application value. The catalyst has relatively high hydrogenation activity and selectivity when being used for catalyzing dimethyl terephthalate (DMT) benzene ring hydrogenation in the reaction for preparing dimethyl 1, 4-cyclohexanedicarboxylate.
Owner:BEIJING UNIV OF CHEM TECH
Thin-film solar cell based on inorganic planar hetero-junction and preparation method thereof
InactiveCN107093641AEffective charge separation interfaceAchieve absorptionMaterial nanotechnologyFinal product manufactureSpectral responseNano structuring
The invention discloses a thin-film solar cell based on an inorganic planar hetero-junction and a preparation method thereof. The solar cell comprises a glass substrate, an FTO layer as the anode, a planar hetero-junction photoactive layer composed of a TiO2 nano-structure compacted thin film and a Sb2S3 mono-crystal bulk single-layer compacted thin film, a polymer PCPDTBT electron blocking layer, a composite hole transport layer composed of PEDOT: PSS and Spiro-MeOTAD, and an Au film layer as the cathode of the solar cell. The inorganic planar hetero-junction thin-film solar cell disclosed by the invention has a spectral response range of 300-750nm. When the photoactive layer of the whole cell is under light, the conversion efficiency of the cell is up to 9.11%. The key photoactive layer material of the solar cell as well as the materials of the electron blocking layer, a hole blocking layer and a buffer layer are prepared through a simple solution method. Therefore, the solar cell has great potential for large-scale industrialization.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Glomerulus-targeted protein nanoparticle pharmaceutical composition and application thereof
ActiveCN105944109ASmall toxicityIncrease concentrationPowder deliveryOrganic active ingredientsProtein targetSide effect
The invention provides a glomerulus-targeted protein nanoparticle pharmaceutical composition and an application thereof. The protein nanoparticle pharmaceutical composition is mainly prepared from a protein ingredient, a pharmacological active substance and a stabilizer, and the grain size of the protein nanoparticle pharmaceutical composition ranges from 10nm to 170nm. With the application of the pharmaceutical composition, passive targeted drug delivery of glomerular mesangial cells is achieved, and the aggregation concentration of a drug in a glomerulus is obviously improved or the aggregation duration of the drug in the glomerulus is prolonged, so that the curative effect of the drug is remarkably improved, and meanwhile, the toxic and side effects of the drug on a non-targeted part are greatly reduced.
Owner:SICHUAN UNIV
Styrene foam particle-magnesium oxychloride cement composite heat insulation material and preparation method thereof
ActiveCN103408321ALight in massImprove thermal insulation performanceCeramicwareCement compositesFoaming agent
The invention discloses a polystyrene foam particle-magnesium oxychloride cement composite heat insulation material and a preparation method thereof. The EPS (expanded polystyrene) particle-magnesium oxychloride cement composite heat insulation material is a novel lightweight organic-inorganic composite heat insulation material which is prepared by steps of firstly foaming magnesium oxychloride cement, industrial waste slag, EPS particles, PPF (polypropylene fiber) fiber, a foaming agent and water by using a slurry body of a cementing material of the magnesium oxychloride cement and further mixing with the EPS particles. The EPS particle-magnesium oxychloride cement composite heat insulation material comprises the following components in percentage by weight: 49.81-52.13% of magnesium oxychloride cement, 16.76-17.52% of industrial waste slag, 1.83-5.61% of EPS particles, 0.37-0.81% of PPF fiber, 0-0.21% of foaming agent and 26.89-28.10% of water. The EPS particle-magnesium oxychloride cement composite heat insulation material disclosed by the invention has the prominent features of low price, good heat insulation performance, energy conservation, waste recycling, environmental friendliness and the like.
Owner:SOUTHEAST UNIV
Dry-mixed mortar prepared from hot furnace slag and preparation method of dry-mixed mortar
The invention discloses dry-mixed mortar prepared from hot furnace slag and a preparation method of the dry-mixed mortar. The dry-mixed mortar comprises the following components in parts by mass: 200-750 parts of an inorganic cementitious material, 280-900 parts of medium sand, 500-1220 parts of hot furnace slag sand and 2-7.5 parts of an additive, wherein the inorganic cementitious material comprises the following components in percentage by mass: 50-65% of cement, 25-30% of hot furnace slag power, 5-10% of blast furnace slag fine powder and 5-10% of limestone fine powder; the additive is cellulose; the hot furnace slag is nickel ore smelting slag; after the hot furnace slag is sieved, the hot furnace slag with the particle sizes of 0.6-2.36 mm is the hot furnace slag sand. All the components are measured according to the formula, and then mixed and stirred to obtain the dry-mixed mortar. According to the preparation method, the process is simple; dry-mixed mortar with the grade of M5-M30 can be prepared; the rate of multipurpose utilization of the hot furnace slag can be remarkably increased; environmental pollution is reduced; social and economic benefits are obvious.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY
Special forming mold for T-shaped precast beam plate
InactiveCN102744775AHigh precisionAvoid repeated disassemblyMould separation apparatusMouldsEngineering
Owner:ZHEJIANG TIANSHENG BUILDING MATERIALS CO LTD
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