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128results about How to "Ease of mass production application" patented technology

Method for preparing aligned carbon nanotube on surface of polymeric membrane

The invention discloses a method for preparing an aligned carbon nanotube on the surface of a polymeric membrane. The method comprises the following steps: firstly, performing modification treatment on a carbon nanotube, collecting the treated modified carbon nanotube, and drying; secondly, dispersing the carbon nanotube subjected to the modification treatment in a polar solvent to obtain an uniformly dispersed modified carbon nanotube dispersion liquid through treatment; thirdly, uniformly depositing the modified carbon nanotube dispersion liquid on the surface of a polymeric membrane, and then covering the membrane surface on which the modified carbon nanotube is deposited through another layer of polymeric membrane to form a three-layer structure; finally, after the three-layer structure is treated through hot pressing, slowly pulling and stripping the outside two layers of membranes of the three-layer structure to obtain the aligned carbon nanotube. According to the invention, the advance design of the carbon nanotube before preparation is not required to be considered, and the range of the selectable carbon nanotubes is wide; the preparation method is simple, and easy to realize, and facilitates actual preparation and production; the alignment of the carbon nanotube on the surface of the soft polymeric membrane can be implemented, and the further application of the aligned carbon membrane is facilitated.
Owner:ZHEJIANG UNIV

Cardanol-based acrylate reactive diluent and preparation method and application thereof

The invention provides a cardanol-based acrylate reactive diluent and a preparation method and application thereof. The preparation method comprises the following steps: esterification reaction: taking cardanol and acryloyl chloride as raw materials, mixing the cardanol and the acryloyl chloride in molar ratio of 1:(0.6-1.3), adding effective amounts of catalyst, acid binding agent, polymerization inhibitor and organic solvent, dropwise adding acryloyl chloride in an ice water bath, increasing the temperature to 20-110DEG C for reaction for 4-15 hours after dropwise addition, and after precipitate is filtered, removing the solvent from the filtrate by a vacuum rotary evaporator to obtain a crude product; and post treatment: extracting the crude product with an organic solvent, cleaning the crude product with a saturated sodium bicarbonate water solution and ultrapure water sequentially, reserving the organic layer after conducting standing and layering, drying the organic layer with anhydrous sodium sulfate, and removing the solvent by evaporating to obtain the final product. The diluent provided by the invention has high biomass content, low volatility, lower toxicity, small film coating shrinkage and partial biodegradability.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Preparing method of in-situ synthesized aluminum matrix composite inoculant

The invention provides a preparing method of an in-situ synthesized aluminum matrix composite inoculant and relates to an aluminum-based alloy. The preparing method is a method for making an ribbon-shaped CeB6 / Al nanometer in-situ aluminum matrix composite inoculant by adopting an in-situ synthesis reaction process and a rapid solidification technology. The method comprises the following steps: weighing required quantities of commercial Al-2.8%B intermediate alloy and commercial Al-20.2%Ce intermediate alloy, and mixing the materials according to a ratio that the ratio by weight of the Al-2.8%B intermediate alloy to the Al-20.2%Ce intermediate alloy is 22:7; putting all of the materials into a crucible of a high-vacuum induction melting furnace and smelting the materials so as to make a blocky Al-B-Ce intermediate alloy; and carrying out rapid solidification treatment so as to make an in-situ synthesized ribbon-shaped CeB6 / Al nanometer in-situ aluminum matrix composite inoculant. The method overcomes defects in the prior art that reinforced particles in the inoculant cannot be distributed on a matrix in a dispersion manner or the dispersion degree is not ideal, the particles are precipitated in melt in an aggregation manner and the sizes of the particles are large.
Owner:HEBEI UNIV OF TECH

A kind of preparation method of in-situ self-generated aluminum-based composite material inoculant

The invention provides a preparing method of an in-situ synthesized aluminum matrix composite inoculant and relates to an aluminum-based alloy. The preparing method is a method for making an ribbon-shaped CeB6 / Al nanometer in-situ aluminum matrix composite inoculant by adopting an in-situ synthesis reaction process and a rapid solidification technology. The method comprises the following steps: weighing required quantities of commercial Al-2.8%B intermediate alloy and commercial Al-20.2%Ce intermediate alloy, and mixing the materials according to a ratio that the ratio by weight of the Al-2.8%B intermediate alloy to the Al-20.2%Ce intermediate alloy is 22:7; putting all of the materials into a crucible of a high-vacuum induction melting furnace and smelting the materials so as to make a blocky Al-B-Ce intermediate alloy; and carrying out rapid solidification treatment so as to make an in-situ synthesized ribbon-shaped CeB6 / Al nanometer in-situ aluminum matrix composite inoculant. The method overcomes defects in the prior art that reinforced particles in the inoculant cannot be distributed on a matrix in a dispersion manner or the dispersion degree is not ideal, the particles are precipitated in melt in an aggregation manner and the sizes of the particles are large.
Owner:HEBEI UNIV OF TECH

Wear-resistant corrosion-resistant super-hydrophobic composite coating and preparation method thereof

The invention discloses a wear-resistant and corrosion-resistant super-hydrophobic composite coating and a preparation method thereof. The method comprises the following steps: uniformly mixing silane coupling agent KH-560 functional modified mica-silicon dioxide composite powder with epoxy resin and ethyl acetate to obtain epoxy resin / mica-silicon dioxide sol; and then spraying the sol on a base material, and curing the sol at 80 DEG C for 2 hours to obtain the wear-resistant and corrosion-resistant super-hydrophobic composite coating. The water contact angle of the surface of the coating is 155-160 degrees, the rolling angle of the surface of the coating is 2-4 degrees, the contact angle of the surface of the coating is 148.3 degrees after the surface of the coating is rubbed on 320-mesh SiC abrasive paper for 2000 cm along a straight line under the pressure intensity of 2000 Pa, and the surface of the coating is still kept hydrophobic after the coating is soaked in a 3.5 wt% NaCl solution for 30 days, the contact angle reaching 146.0 degrees. The preparation method is simple, environmentally friendly, low in cost and suitable for the surfaces of different base materials such as glass, metal, wood, ceramic and stone, and has good application prospects.
Owner:FUZHOU UNIV

Method for manufacturing high-power high-reflectance COB substrate and light source

The invention provides a method for manufacturing a high-power high-reflectance COB substrate and light source. The method comprises the following steps that a transparent substrate body is provided; light sensitive films are formed in the two sides of the transparent substrate body; exposure developing is carried out on the light sensitive films on the two sides of the transparent substrate body, and the appearance frame lines of a product on the transparent substrate body are exposed out; the penetrating step is carried out on the appearance frame lines of the product on the transparent substrate body; the light sensitive films are removed; mirror face reflecting layers are formed on the bottom face and the side faces of the transparent substrate body after the light sensitive films are removed; a circuit layer is printed and sintered on the front face of the transparent substrate body after the light sensitive films are removed and a crystal solidification area is arranged on the front face of the transparent substrate body; a weld line area and an electrode are formed on the circuit layer; insulation oil is printed on the other parts, except for the crystal solidification area, the weld line area and the electrode, of the front face of the transparent substrate body. The method for manufacturing the high-power high-reflectance COB substrate and light source can greatly improve the reflecting capacity of the COB substrate or light source, light efficiency is improved, and energy conservation and environment protection are achieved.
Owner:SHENZHEN ZHIJIN ELECTRONICS

Platinum-based intermetallic nanocrystal with ordered structure and preparation and application thereof

ActiveCN113206259ARaise the chemical potentialEasy to driveCell electrodesPlatinum saltsPtru catalyst
The invention discloses a platinum-based intermetallic nanocrystal with an ordered structure as well as preparation and application thereof, and belongs to the field of cathode catalytic materials of proton exchange membrane fuel cells. The method comprises the steps: mixing a platinum salt solution and the carbon powder dispersion liquid to obtain a mixed solution, reducing platinum salt in the mixed solution, and compounding the reduced platinum salt with carbon powder to obtain carbon-loaded platinum nanoparticles; on the basis of carbon-supported platinum nanoparticles, obtaining a carbon-supported platinum and metal oxide compound by hydrolyzing transition metal salt, and annealing the compound to obtain the superfine platinum-based intermetallic nanocrystalline oxygen reduction catalyst. The preparation method is simple in process, green and environmentally friendly, disordered-ordered structure conversion of nanocrystals can be effectively promoted, the size of nanoparticles can be effectively regulated and controlled, batch production is easy, and the obtained platinum-based intermetallic nanocrystal oxygen reduction catalyst has good activity and durability and has a remarkable effect when applied to a proton exchange membrane fuel cell.
Owner:HUAZHONG UNIV OF SCI & TECH

Ring shaped resonance cavity laser

InactiveCN101272033AAchieve unidirectional resonant outputSimple structureActive medium shape and constructionResonant cavityOptoelectronics
The invention discloses a ring-shaped resonant cavity laser, which comprises a back cavity mirror and a laser gain medium with magneto-optical rotation effect. The back cavity and the laser gain medium with magneto-optical rotation effect constitute a ring-shaped light path. The laser gain medium with magneto-optical rotation effect is arranged in a magnetic field H, which is provided with an incoming head face, an outgoing head face and three reflecting surfaces. A light path block material is arranged in the middle of the incoming head face and the outgoing head face; the reflecting surface which remotely faces to the back cavity mirror is coated with a high reflecting film; a polarizing polarizer and a wave plate are arranged in the ring-shaped light path; when the wave plate is arranged on the laser outgoing light path of the laser gain medium with magneto-optical rotation effect, the wave plate is a one half plate; when the wave plate is arranged on the laser incoming and outgoing light paths of the laser gain medium with magneto-optical rotation effect, the wave plate is a one fourth plate. By using the coactions of the magneto-optical rotation effect, the wave plate and the polarized polarizer, polarization loss of the light transmitted along a single direction is carried out in the ring-shaped light path, thus realizing the single direction ring-shaped polarization.
Owner:SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD

Resistance-reducing and antifouling coating composition and resistance-reducing and antifouling coating prepared from same

The invention discloses a resistance-reducing and antifouling coating composition and a resistance-reducing and antifouling coating prepared from the same. The composition contains a first component, a second component and a third component, wherein the first component is a polymer emulsion prepared through polymerization of acrylic acid monomers and epoxy monomers; the second component is microgel suspension liquid prepared through polymerization of substituted acrylamide, amphiphilic macromolecule monomers, a cross-linking agent and epoxy monomers; and the third component is a curing agent. The resistance-reducing and antifouling coating prepared from the components has thermosensitivity, and the surface of the coating is in a dynamic form under a temperature variation condition, so that the adhesion of living bodies is prevented, and the antifouling property is realized; and meanwhile, the coating layer has amphipathy, so that the resistance in a water medium is effectively reduced, and a resistance reduction effect is realized. By taking water as a solvent during the preparation of the composition and the coating, the composition and the coating are safe, environmentally friendly and free of pollution, the raw materials are easily available, a preparation method is simple, and large-scale production and application are easily realized.
Owner:BEIJING UNIV OF CHEM TECH

Anti-corrosion device for indoor gas pipe

The invention discloses an anti-corrosion device for an indoor gas pipe. The anti-corrosion device comprises the gas pipe, a casing pipe and tightening hoops, wherein the casing pipe is arranged on the outer wall of the gas pipe, and the tightening hoops are arranged at the two ends of the casing pipe. The casing pipe is of a round structure and divided into a left casing pipe body and a right casing pipe body. A protective belt layer is arranged outside the casing pipe. The fastening hoops at the two ends of the casing pipe are fastened through screws. The outer walls of the fastening hoops are fixed through tying belts. A waterproof cover is arranged on each fastening hoop. An anti-corrosion layer is arranged between the casing pipe and the gas pipe. The anti-corrosion casing pipe is arranged on the rear portion of the anti-corrosion device for the indoor gas pipe, and it is guaranteed that a uniform cavity is formed around the pipe; the mode that pouring is conducted from bottom to top is adopted, the formed anti-corrosion layer is uniform and compact, and the situation that anti-corrosion materials are excessive at one side and missing in coating at the other side is avoided; in addition, assembling can be completed rapidly; the anti-corrosion casing pipe which is arranged on the rear portion can be constructed with rust, and the anti-corrosion device is more suitable for the circumstance in which rust cannot be removed, such as repair of a through-wall vertical pipe; and by means of unique design of the casing pipe arranged on the rear portion, construction efficiency is greatly improved.
Owner:TIANJIN TIANDA TIANLONG TECH

Satellite communication dual-frequency circularly polarized antenna

The invention discloses a satellite communication dual-frequency circularly polarized antenna, which comprises an inner dielectric support, an inner radiator, an outer dielectric support, an outer radiator, a feeding layer and a grounding layer, wherein the inner dielectric support is of a cylinder structure, and two coaxial cables are arranged in the middle of the inner dielectric support; the inner radiator is of a four-arm spiral structure, and four spiral wires of the inner radiator are evenly wound around the outer surface of the inner dielectric support; the outer dielectric support is of a cylindrical ring structure, the outer dielectric support sleeves the inner dielectric support, and the outer diameter of the outer dielectric support is greater than the outer diameter of the inner dielectric support; and the outer radiator is of a four-arm spiral structure, and four spiral wires of the outer radiator are evenly wound around the outer surface of the outer dielectric support. The satellite communication dual-frequency circularly polarized antenna has the advantages of simple structure, small size, wide antenna bandwidth, high gain, high gain consistency of the two frequencybands, good overall performance and capability of meeting the requirement of miniaturization.
Owner:南京乾波通信技术有限公司

Composite material with light hydrocarbon adsorption function, preparation method of composite material, method for removing light hydrocarbon by using composite material and application of composite material

The invention relates to the field of material synthesis, and discloses a composite material with a light hydrocarbon adsorption function, a preparation method of the composite material, a method for removing light hydrocarbons by using the composite material and application of the composite material. The composite material comprises an association structure formed by a polymer and a copper-based metal organic framework material loaded in the association structure, the weight ratio of the polymer to the copper-based metal organic framework material is 1: (1-15), and the polymer is selected from at least one of polyvinyl formal, polypropylene, polyethylene sulfone and polyamide. The composite material is stable in framework structure and has high mechanical stability, the pore volume, the pore diameter and the specific surface area of the composite material are large, the light hydrocarbon adsorption capacity is high, the method for preparing the composite material is simple and environmentally friendly, synthesis raw materials are low in price, and large-scale production and application are easy.
Owner:CHINA PETROLEUM & CHEM CORP +1

A kind of cardanol-based acrylate reactive diluent and its preparation method and application

The invention provides a cardanol-based acrylate reactive diluent and a preparation method and application thereof. The preparation method comprises the following steps: esterification reaction: taking cardanol and acryloyl chloride as raw materials, mixing the cardanol and the acryloyl chloride in molar ratio of 1:(0.6-1.3), adding effective amounts of catalyst, acid binding agent, polymerization inhibitor and organic solvent, dropwise adding acryloyl chloride in an ice water bath, increasing the temperature to 20-110DEG C for reaction for 4-15 hours after dropwise addition, and after precipitate is filtered, removing the solvent from the filtrate by a vacuum rotary evaporator to obtain a crude product; and post treatment: extracting the crude product with an organic solvent, cleaning the crude product with a saturated sodium bicarbonate water solution and ultrapure water sequentially, reserving the organic layer after conducting standing and layering, drying the organic layer with anhydrous sodium sulfate, and removing the solvent by evaporating to obtain the final product. The diluent provided by the invention has high biomass content, low volatility, lower toxicity, small film coating shrinkage and partial biodegradability.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Ammonium-modified silicon oxide loaded boron oxide for oxidative dehydrogenation of propane and preparation method of ammonium-modified silicon oxide loaded boron oxide

The invention provides ammonium modified silicon oxide loaded boron oxide for propane oxidative dehydrogenation and a preparation method thereof. The preparation method comprises the following steps: dissolving a boron compound in an ammonia water solution to obtain a boron-containing impregnation liquid; uniformly mixing and stirring the obtained solution and a silicon oxide carrier, centrifugally separating, drying, and roasting in an air atmosphere in a muffle furnace to obtain the ammonium-modified silicon oxide-loaded boron oxide catalyst. According to the method, ammonium modification of the carrier and high loading capacity of boron oxide can be simultaneously realized through one-time impregnation, the preparation process is simple and easy to control, the used ammonia water solution can be recycled for multiple times, and large-scale production and application are facilitated; the content of boron oxide in the obtained catalyst is 7-25 wt.%, and the catalyst has excellent propane oxidative dehydrogenation low-temperature catalytic activity and olefin selectivity, has good loss resistance in the reaction process of loading boron oxide, and has wide industrial development and application prospects.
Owner:INNER MONGOLIA NORMAL UNIVERSITY
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