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41results about How to "Fast composite" patented technology

CeO2@MoS2/g-C3N4 ternary composite photocatalyst and preparation method thereof

The invention belongs to the field of nano-material preparation, and discloses a CeO2@MoS2 / g-C3N4 composite photocatalysis material and a preparation method thereof. The preparation method comprises the following steps: (1) adding cerium oxide hexahydrate to a mixed solution of butylamine and toluene, carrying out hydrothermal treatment on the obtained mixed solution, and calcining the obtained reaction product to obtain CeO2 nanocrystals; (2) ultrasonically dispersing sodium molybdate dihydrate and g-C3N4 nanosheets in a mixed solution of L-cysteine and dimethyl sulfoxide, and carrying outhydrothermal treatment on the obtained mixed solution to obtain MoS2 / g-C3N4 nanosheets; (3) ultrasonically dispersing the CeO2 nanocrystals and MoS2 / g-C3N4 in a methanol solution, volatilizing the methanol, and collecting the obtained product to obtain a CeO2-MoS2 / g-C3N4 composite material; and (4) placing the CeO2-MoS2 / g-C3N4 composite material in a tubular furnace, and calcining in a nitrogen atmosphere to obtain the CeO2@MoS2 / g-C3N4 ternary composite photocatalyst. The preparation method of the invention is simple and has strong controllability, and the obtained composite photocatalyst hasan excellent photocatalytic degradation performance.
Owner:NANJING UNIV +1

Insulation double-sided tape and preparation process thereof

The invention discloses an insulation double-sided tape and a preparation process thereof. The insulation double-sided tape comprises a first release film, a first double-sided adhesive film, an insulation film, a second double-sided adhesive film and a second release film which are sequentially attached to each other, one end of each of the first release film, the first double-sided adhesive film, the insulation film, the second double-sided adhesive film and the second release film is aligned, the first double-sided adhesive film, the insulation film, the second double-sided adhesive film are equal in length, the other end of the first release film is 5-10mm longer than the first double-sided adhesive film, and the second release film is 20-50mm longer than the second double-sided adhesive film. The insulation double-sided tape is compounded to be an integrated structure through mechanical equipment, after being completed, the insulation double-sided tape can be attached to the inner side of an LED (light emitting diode) lamp tube merely by one worker for usage, so that the manpower is saved, the compound cycle is shortened, the production efficiency is improved, the preparation process is completed through the mechanical equipment, the compound is fast, the accuracy is high, the product reject ratio is low, and the resource is saved.
Owner:SUZHOU JINHE NEW MATERIAL

Reverse conducting IGBT (Insulated Gate Bipolar Translator) device and manufacturing method thereof

The invention relates to a reverse conducting IGBT (Insulated Gate Bipolar Translator) device which comprises a first conductive type drift region. A second conductive type base region is arranged in the first conductive type drift region. The upper part of the second conductive type base region is provided with a first conductive type emitter region; a gate oxide layer is arranged above the second conductive type base region and the first conductive type drift region; a polycrystalline gate is arranged on the gate oxide layer and provided with a gate electrode; and an emitting electrode is arranged on the second conductive type base region. The back of the first conductive type drift region is provided with a second conductive type collector region and a first conductive type collector doped region, and the first conductive type collector doped region is located at one side of the second conductive type collector region. A first collector metal region is deposited on the back of the first conductive type drift region; the second conductive type collector region is covered by one surface of the first collector metal region; a second collector metal region is deposited on the other surface of the first collector metal region; and the second conductive type collector region and the first conductive type collector doped region are covered by the second collector metal region. Through the reverse conducting IGBT device, a high impurity activation rate can be obtained at low temperature.
Owner:JIANGSU CAS JUNSHINE TECH +1

Pearl cotton board compound machine

The invention discloses a pearl cotton board compound machine. The pearl cotton board compound machine comprises a rack, the rack is provided with a fixed frame, adjusting frames are arranged on the two sides of the fixed frame, and the fixed frame is connected with a heating compound mechanism; the heating compound mechanism comprises two pressing rollers and a heating device, the heating deviceis composed of an air blower, heating pieces and pipelines, and the heating pieces comprise heat collecting tubes and connecting pipes; the heat collecting tubes are arranged on the rack and located under the two pressing rollers, and the connecting pipes are distributed on the lower end faces of the heat collecting tubes at equal intervals; inner cavities of the connecting pipes communicate withinner cavities of the heat collecting tubes, and a heat conducting column is placed in each connecting tube; and an electric heating wire is arranged on each heat conducting column in a penetrating mode, and the two ends of each electric heating wire stretches out of the corresponding connecting pipe and then are further connected with a power supply with the exterior voltage being 380 V. By adopting the technical scheme, the pearl cotton board compound machine is simple in structure, and can quickly compound two pearl cotton boards, the heating efficiency is greatly improved, and the energy saving effect is achieved.
Owner:苏伟杭

Molybdenum disulfide nanosheet/porous graphitized biochar composite material and its preparation method and application

The invention discloses a molybdenum disulfide nanosheet / porous graphitized biocarbon composite material and a preparation method and application thereof. The composite material takes porous graphitized biocarbon as a carrier, and the surface of the composite material is embedded with a molybdenum disulfide nanosheet. The preparation method comprises the following steps: preparing porous graphitized biochar powder; ultrasonic dispersing the porous graphitized biochar powder in water, adding sodium molybdate dihydrate and thioacetamide for hydrothermal reaction, centrifuging, washing and dryingto obtain the composite material. The composite material has the advantages of large specific surface area, good conductivity, low photogenerated electron-hole pair recombination rate, high photocatalytic activity, high universality and the like, and the preparation method has the advantages of simple process, simple and convenient operation and low cost, environmental protection, and no toxic and harmful by-products, suitability for large-scale preparation, and the method meets the requirement of actual production. The composite material can rapidly and efficiently treat antibiotics in the environment, and has good application value and application prospect.
Owner:HUNAN UNIV

Method for constructing LiF protection layer on three-dimensional lithium-carbon composite material and application of LiF protection layer

The invention provides a method for constructing a LiF protection layer on a three-dimensional lithium-carbon composite material. The method comprises the following steps: mixing graphene, a fluorine-containing organic binder solution and metal lithium powder to obtain metal lithium/graphene composite material slurry; coating a current collector with the metal lithium/graphene composite material slurry to obtain an electrode; and carrying out thermal lithiation compounding on the electrode to obtain a LiF protection layer in a three-dimensional size. Different from other methods for introducing a fluorine-containing protection layer on the surface of a blocky lithium foil lithium sheet through additional reaction steps in the prior art, the method provided by the invention is used for synthesizing the lithium metal powder/graphene three-dimensional composite negative electrode material with LiF protection through a one-step method of homogenate coating, heating and compounding without complicated devices and equipment, is simple and time-saving and can be used for large-area production. The invention also provides an application of constructing the LiF protection layer on the three-dimensional lithium-carbon composite material.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

a ceo 2 @mos 2 /g-c 3 n 4 Ternary composite photocatalyst and preparation method thereof

The invention belongs to the field of nanomaterial preparation and discloses a CeO 2 @MoS 2 / g‑C 3 N 4 Composite photocatalytic material and preparation method thereof, comprising: (1) adding cerium oxide hexahydrate to a mixed solution of butylamine and toluene, after hydrothermal treatment of the obtained mixed solution, calcining the reaction product to obtain CeO 2 Nanocrystal; (2) sodium molybdate dihydrate, g-C 3 N 4 The nanosheets were ultrasonically dispersed in a mixed solution of L-cysteine ​​and dimethyl sulfoxide, and the resulting mixed solution was hydrothermally treated to obtain MoS 2 / g‑C 3 N 4 Nanosheets; (3) CeO 2 Nanocrystals and MoS 2 / g‑C 3 N 4 Ultrasonic dispersion in methanol solution, after the methanol volatilizes, the resulting product is collected as CeO 2 ‑MoS 2 / g‑C 3 N 4 Composite material; (4) the CeO 2 ‑MoS 2 / g‑C 3 N 4 The composite material was placed in a tube furnace and calcined in a nitrogen atmosphere to obtain CeO 2 @MoS 2 / g‑C 3 N 4 Ternary composite photocatalyst. The preparation method of the invention is simple and highly controllable, and the obtained composite photocatalyst has excellent photocatalytic degradation performance.
Owner:NANJING UNIV +1

Insulation board and glass fiber net compositing device

The invention discloses a thermal insulation board and glass fiber mesh composite device, which comprises a base, a frame is arranged on the base, a transmission roller is arranged on one side of the frame, and a transmission belt is arranged between the transmission rollers; There is a rubber conveying machine, the lower part of the rubber conveying machine is provided with a rubber conveying pipe, the upper end of the rubber conveying pipe is provided with a rubber conveying pump, and the lower end of the rubber conveying pipe is provided with a rubber conveying plate, and the inside of the rubber conveying plate is a cavity structure , The lower part of the rubber feeding plate is provided with a number of liquid outlets; the rubber feeding board is arranged above the transmission belt; the top of the frame is provided with an unwinding roller, and the unwinding roller is installed on the top of the frame through the unwinding installation shaft. The invention can conveniently and stably transport the heat preservation board through the transmission belt; it is convenient to apply glue to the heat preservation board, and the glass fiber net and the heat preservation board can be bonded through the glue layer, so that the heat preservation board and the glass fiber net can be quickly compounded.
Owner:响水县同舟建材有限公司

Reverse conducting IGBT (Insulated Gate Bipolar Translator) device and manufacturing method thereof

The invention relates to a reverse conducting IGBT (Insulated Gate Bipolar Translator) device which comprises a first conductive type drift region. A second conductive type base region is arranged in the first conductive type drift region. The upper part of the second conductive type base region is provided with a first conductive type emitter region; a gate oxide layer is arranged above the second conductive type base region and the first conductive type drift region; a polycrystalline gate is arranged on the gate oxide layer and provided with a gate electrode; and an emitting electrode is arranged on the second conductive type base region. The back of the first conductive type drift region is provided with a second conductive type collector region and a first conductive type collector doped region, and the first conductive type collector doped region is located at one side of the second conductive type collector region. A first collector metal region is deposited on the back of the first conductive type drift region; the second conductive type collector region is covered by one surface of the first collector metal region; a second collector metal region is deposited on the other surface of the first collector metal region; and the second conductive type collector region and the first conductive type collector doped region are covered by the second collector metal region. Through the reverse conducting IGBT device, a high impurity activation rate can be obtained at low temperature.
Owner:JIANGSU R & D CENTER FOR INTERNET OF THINGS +2
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