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508results about How to "Solve the problem of easy falling off" patented technology

Silver nanowire transparent conductive film based on thermoplastic transparent polymer and preparation method thereof

The invention provides a structure and a preparation method of a silver nanowire transparent conductive film based on a thermoplastic transparent polymer, which is characterized in that the silver nanowire conductive network is uniformly spread on a hard substrate, and then the The method makes a continuous silver nanowire conductive network embedded on the surface of a thermoplastic transparent polymer, and part of the surface of the silver nanowire is exposed to the air to form a silver nanowire conductive film based on the thermoplastic transparent polymer.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Composite polyolefin/sio2 nano particle and its prepn

InactiveCN1417249ASolve the low grafting rateSolve efficiency problemsPolyolefinPolymer science
The present invention belongs to the field of polymer material technology. Inorganic nano Sio2 partticle, organic olefin monomer and coupler as raw materials are subjected to emulsion polymerization or suspension polymerization in water as medium in the presence of various emulsifiers and initiator, so that the olefine polymer is grafted to the surface of inorganic nano SiO2 particle to form inorganic nano SiO2 particle core-organic olefin polymer shell structure. The composite particle is spherical, has homogeneous particle size smaller than 100 nm, and has high grafting rate and high grafting efficiency. The prepared compoisite olefin polymer / SiO2 particle material has wide application in the development of nano technology.
Owner:TSINGHUA UNIV

Electrode structure for capacitive touch screens and preparation method thereof

The invention relates to an electrode structure for capacitive touch screens. The electrode structure comprises a substrate, a graphene layer and a conductive metal film layer sequentially from bottom to top, wherein a metal adhesive layer which enhances the adhesion between the graphene layer and the metal film layer is arranged between the conductive metal film layer and the graphene layer. The electrode structure disclosed by the invention has the characteristics of high adhesion, corrosion resistance and good electrical conductivity, moreover, the process of a production method is simple, and the product yield is high.
Owner:无锡力合光电石墨烯应用研发中心有限公司 +1

Dry powder ceramic tile binding agent

The present invention discloses a drying powder ceramic tile , which consists of the following component with the stated molar ratio: 500 pieces of 425# Porland cement, 500 pieces of drying sand to match a grade above 40 items, 2-3 pieces of intension, 1-3 pieces of water-keeping and 3-5 pieces of cement compound; the intension is calcium formate; the water-keeping is methyl cellulose; the cement compound is polyethylene or the subdivided latex powder. Because the cement compound and the water-keeping increase the felting intension during being used so as to make the anti-flow ability and the water-keeping ability for the cement compound enhanced greatly; the decorating effect for the facing brick is much fixed, perfect; the method solves the problem that the decoration is easy to be fallen off; besides, the thickness of the felting sand slurry decreases to 3-4mm from the original 2cm; the device can not only save the material greatly, but also decrease the weight by the over-heavy sand slurry to the building; besides, the device can decrease the labor intension for the worker and make the construction much faster and more high-efficient.
Owner:山东润东建材有限公司

Method for electrolyzing aluminum from ionic liquid on hyper-gravity basis

InactiveCN101760758AEnhance convection and diffusion processesFacilitates ion mass transferPhotography auxillary processesProcess efficiency improvementIonAluminum matrix composites
The invention discloses a method for electrolyzing aluminum from an ionic liquid on a hyper-gravity basis and belongs to the field of metal electrodeposition under special conditions. The method of the invention comprises the following step: electrolyzing aluminum and subjecting an electrolytic tank to centrifugal rotation to generate a hyper-gravity field simultaneously, wherein aluminum sheets or aluminum-based composite material constitute the anode; stainless steel sheets or aluminum sheets constitute the cathode; the ionic liquid of chloroaluminate salt constitutes the electrolyte; and nitrogen or argon constitutes the protective gas. Accordingly, the electrolyzation of aluminum can be achieved in the hyper-gravity field, so as to obtain an aluminum deposition layer. The invention has the following advantages: the hyper-gravity field is capable of enhancing the processes of convection and dispersion, improving the mass transfer of ions, increasing the rate of deposition and reducing the preparation period of aluminum; finer aluminum grains and denser deposition layers can be obtained in the hyper-gravity field; moreover, the adhesion of the aluminum deposition layers can be obviously improved by the contingent mechanical effects, thereby preventing the dendritic crystal aluminum from being generated; the method can solve the problem that the deposition layer is likely to drop off; and no gas is generated at the anode during the refining process, thereby preventing the environmental pollution.
Owner:BEIJING UNIV OF CHEM TECH

Light-emitting diode (LED) with reflector structure

The invention relates to a light-emitting diode with a reflector structure. The light-emitting diode with the reflector structure sequentially comprises a metal layer, a distributed Bragg reflector (DBR) layer, a substrate, a buffer layer, an undoped GaN layer, an n-type GaN layer, an n electrode formed on the n-type GaN layer, an active layer, a p-type GaN layer, a transparent conductive layer and a p electrode formed on the transparent conductive layer from bottom to top, and is characterized in that a transition layer for improving the adhesion of the DBR layer and the metal layer is inserted between the metal layer and the DBR layer; and the metal layer, the transition layer and the DBR layer form the reflector structure of the light-emitting diode. According to the light-emitting diode, an Ag metal reflection layer is adopted, and an Au barrier is not required, so that the using amount of Au is reduced; in addition, the reflectivity of Ag is higher than that of Al, so that the reflectivity is favorably improved; and moreover, the transition layer is inserted, so that the problems of low adhesion and high separation rate of Ag and the DBR layer are solved.
Owner:AQUALITE CO LTD

Anticorrosive paint for copper alloy and manufacturing method thereof

The invention provides an anticorrosive paint for copper alloy and a manufacturing method thereof, which can solve the problems of the prior art that the binding force of the coating layer is inferior, the service life of the coating layer is influenced, and the like. The invention relates to an anticorrosive paint with excellent anticorrosive property and strong adhesive force with copper alloy, which is manufactured by using epoxy resin enhanced with polyurethane as a base resin, improved aromatic amine curing agent as a curing agent and adding an accelerating agent with a certain amount of adhesive force.
Owner:MARINE CHEM RES INST

High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer

The invention discloses a high-temperature scale anticorrosion construction method for a heat-engine plant desulfurizer, comprising following steps of basic treatment, undercoat painting, a primary scale daub coating, a secondary scale daub coating, polishing smoothly, local part enhancement, wear-resisting mortar coating, top coat painting and final inspection. The anticorrosion construction method has the advantages of strong anticorrosion capability, stable adherence, no easy fall, strong adhesion of a glass scale liner, small contraction after solidification, long service life of the liner, better shock resistance and anticorrosion performance than other materials, easy repair of local damage, room-temperature (or low-temperature heating) solidification and convenient construction.
Owner:中建五局第三建设有限公司

Key

The invention relates to a key, which comprises a bottom plate, a key cap with a key cap major axis, a lifting mechanism, a spring-back device and a supporting mechanism, wherein the lifting mechanism is arranged between the bottom plate and the key cap and comprises a first plate-shaped support and a second plate-shaped support; the first plate-shaped support comprises a first side part and a second side part parallel to the key cap major axis for abutting against the bottom plate and the key cap respectively; the second plate-shaped support comprises a third side part and a fourth side part parallel to the key cap major axis for abutting against the bottom plate and the key cap respectively; part of the bottom plate enters accommodating openings of the first plate-shaped support and the second plate-shaped support to enable the first plate-shaped support and the second plate-shaped support to be movably connected onto the bottom plate; the spring-back device is used for driving the key cap to be returned to an un-pressed position along with pivoting of the first plate-shaped support and the second plate-shaped support relative to the bottom plate via the first side part and the third side part; and the supporting mechanism comprises a first supporting piece and a second supporting piece which are pivoted mutually to be movably connected between the key cap and the bottom plate. The pulling force of the key cap can be increased, and the problem that the key cap of a multiple key is likely to fall can be solved effectively.
Owner:DARFON ELECTRONICS (SUZHOU) CO LTD +1

Hob mounting structure of shield tunneling machine

The invention belongs to the technical field that the whole section is cut simultaneously by one rotary drill, and particularly discloses a hob mounting structure of a shield tunneling machine. The hob mounting structure of the shield tunneling machine comprises bolts, a hob, a tool apron and a hob shaft used for fixing the hob, and further comprises wedge blocks, wherein threaded holes matched with the bolts are formed in the tool apron; grooves for accommodating the hob shaft and the wedge blocks are further formed in the tool apron; a cross section of the hob shaft is wedge-shaped; through holes are formed in the wedge blocks; the diameter of a bolt head of each bolt is larger than the diameter of each through hole, and the outer diameter of a screw of each bolt is smaller than the diameter of each through hole. Besides, the hob mounting structure further comprises stop blocks fixed on the wedge blocks, sealing plugs are further arranged on the tool apron, and pull rings are arranged on the sealing plugs. Compared with a traditional hob mounting structure of the shield tunneling machine, the hob mounting structure of the shield tunneling machine adopts a newly added design of the wedge blocks, the stability of the hob shaft is greatly improved under the locking action of the bolts on the wedge blocks, and the problem that the hob is likely to fall off is effectively solved.
Owner:CHONGQING TENGHAN IND & TRADE

Preparation method of submicron-grade graph on sapphire substrate

The invention relates to a preparation method of a submicron-grade graph on a sapphire substrate, which belongs to the technical field of semiconductors and comprises the following steps of: firstly depositing a photoresist-adhering layer on the sapphire substrate, then carrying out the ultrasonic processing of the sapphire substrate in acetone through photoetching and vapor deposition, and cleanly flushing by adopting deionized water; then placing the sapphire substrate into a hydrochloric-acid aqueous solution for heating to ultrasonically remove a metallic mask layer after being etched by adopting an inductively-coupled plasma dry method, flushing with the deionized water, and then placing the sapphire substrate into dilute hydrofluoric acid or a heated phosphoric-acid solution to remove the photoresist-adhering layer; and finally placing the substrate into the acetone and alcohol for ultrasonic processing, and then cleanly flushing with the deionized water. The preparation method of the submicron-grade graph on the sapphire substrate has the advantages of low manufacturing cost, easiness in operation and high finished-product rate, can be used for the epitaxial growth of low-dislocation-density high-crystal-quality nitrides and can be used for producing the substrate material of a nitride-semiconductor light-emitting diode with higher light-emitting efficiency.
Owner:南京大学扬州光电研究院

Method for making solder mask layer

The invention relates to the technical field of circuit board production, and specifically relates to a method for making a solder mask layer. Exposure is carried out by adopting films of different coefficients in primary resistance welding and secondary resistance welding to increase the alignment accuracy of solder mask ink. Therefore, the problem that a solder mask layer deflects onto a pad is reduced, inaccurate alignment of solder mask ink during secondary resistance welding due to sheet deformation caused by baking under high temperature during primary resistance welding is overcome, the scrap rate caused by film coefficient is reduced, and the cost of production is decreased. Moreover, by adopting the method, the problem that a resistance welding bridge is easy to fall off due to excessive lateral erosion caused by the thickness of resistance welding can be solved, and for a production board with the thickness of copper greater than 120 microns, a resistance welding bridge can be retained on a positive line film.
Owner:JIANGMEN SUNTAK CIRCUIT TECH

Biological membrane fluidized bed wastewater treatment method

The invention relates to a biological membrane fluidized bed wastewater treatment method and belongs to the field of environmental engineering. The method comprises the following steps: adopting natural paper pulp fibers with good biocompatibility as fluidized bed carrier fillers and adopting a three-chamber composite biological membrane fluidized bed as a fluidized bed reactor. The method has the beneficial effects that the power consumption can be greatly reduced; meanwhile, as a plurality of fine fibers and micro pores are formed in the cellulose fibers, the growth and the adhesion of microorganisms are facilitated; and under the bridging and collecting action of the fine fibers, the problem existing in a conventional filler that microorganisms are easy to fall off is solved to a great degree. The method has good application prospect.
Owner:朱勇强

Composite vascular stent

InactiveCN104069547APromote endothelial repairAccelerated endothelial growthSurgeryPharmaceutical containersProtein APercent Diameter Stenosis
The invention discloses a composite vascular stent which comprises stent bodies and composite drug coatings, wherein the stent bodies are wrapped with the composite drug coatings, and are bare metal stents, degradable polymer stents, degradable magnesium alloy stents or degradable iron alloy stents; the bare metal stents are 316 L stainless-steel stents; each composite drug coating is a composite coating which comprises a dopamine polymer layer, 1-10 layers of anticoagulative drug and 1-10 layers of endothelial regeneration promoting cell factors in sequence from inside to outside; the anticoagulative drug is heparin; the composite drug coatings are wrapped with protein A layers and antibody drug layers; each antibody drug layer comprises antibodies CD34. The composite vascular stent has the benefits as follows: the drug coatings provided by the invention are uniform, resistant to washing and stable, have a high capability of capturing endothelial progenitor cells, can achieve the purposes of well inhibiting thrombosis and reducing restenosis and have an important clinical application value.
Owner:JILIN UNIV

Composite nano epoxy functional polymer/SiO2 particle and its prepn process

InactiveCN1468870ASolve efficiency problemsSolve the problem of difficult to achieve surface functionalizationEpoxyChemical reaction
The present invention prepares composite nano epoxy functional polymer / SiO2 particle with the materials including inorganic nano SiO2 particle, organic olefine monomer, olefine monomer with epoxy radical second crosslinking agent and through emulsion polymerization or suspension polymerization in water medium in the presence of emulsifier and initiator. The composite particle has the characterized structure comprising inorganic nano SiO2 particle as core, organic polyolefin as shell and epoxy functional radical on the surface; and has particle size smaller than 100 nm, chemical bond connection between the core and the shell and epoxy functional radical with very high chemical reaction activity. The present invention has wide application in developing nano technology.
Owner:TSINGHUA UNIV

Rotating and positioning structure of circuit board

The inventions relates to a rotating and positioning structure of a circuit board, which is used for rotating the circuit board relative to a bottom board of a machine case and mutually positioning the circuit board and the bottom board. The circuit board is provided with a plurality of positioning holes; the bottom board of the machine case is provided with a plurality of corresponding positioning pillars; all the positioning holes are distributed on the circuit board by taking the same center of a circle, and each positioning hole is provided with a penetrating part and a positioning part; and each positioning pillar is provided with a head used for penetrating the penetrating part and a neck connected with the head and used for clamping the positioning part. The neck is clamped into thepositioning part by rotating the circuit board, so that the circuit board and the bottom board of the machine case are mutually clamped and positioned.
Owner:NANTONG LUWAN ELECTRONICS

Operation device with channel expansion and maintaining functions

The invention provides an operation device with channel expansion and maintaining functions. The operation device comprises a tube sheath assembly, a balloon, a gas-liquid infusion component and a guide rod, wherein the head part of the tube sheath assembly is connected with the balloon; the outer edge of the tube sheath assembly is connected with the gas-liquid infusion component; the guide rod is mounted in the tube sheath assembly in an inserting way; the tube sheath assembly comprises a tube sheath, a one-way sealed cavity control valve, a gas-liquid guide rod, a gas-liquid control valve and a seal ring; an axial through hole is formed in the tube sheath; a sealed cavity is formed in the tail part of the tube sheath; the one-way sealed cavity control valve is mounted in the sealed cavity in a sleeving way; the seal ring is mounted at the tail end part of the sealed cavity; when the operation device is in use, the guide rod sequentially penetrates through the seal ring and the one-way sealed cavity control valve and is mounted in the axial through hole of the tube sheath in an inserting way; the gas-liquid guide rod is arranged on the outer edge of the tube sheath; a through hole of the gas-liquid guide rod is communicated with the axial through hole of the tube sheath; since the one-way sealed cavity control valve is mounted in the sealed cavity, led-in gas-liquid flows into the balloon only through the axial through hole of the tube sheath unidirectionally; the gas-liquid control valve used for controlling in-out of the gas-liquid is arranged on the gas-liquid guide rod.
Owner:南京东万生物技术有限公司

Preparation method of textile electrode material and textile electrode material

The invention discloses a preparation method of a textile electrode material and the textile electrode material. The preparation method comprises the steps that firstly, pretreated fabric is soaked ina dopamine hydrochloride solution, and polydopamine coated fabric is obtained; then, the polydopamine coated fabric is soaked in a silver-ammonia solution, a glucose solution is added after a certainperiod of time, and a silver-plated fabric is obtained; the silver-plated fabric is subjected to chlorination treatment in a sodium chloride solution through an electrochemical method, and a silver-silver chloride composite coating fabric is formed; finally, the silver-silver chloride composite coating fabric is modified in a conductive polymer monomer solution through an electrochemical method,and the silver-silver chloride-conductive polymer composite coating fabric is obtained. The surface specific resistance of the textile electrode material is 0.01-5 omega, the polarization impedance ina 0.9% sodium chloride solution is 10-1000 omega, the skin interface impedance is 1K omega-100M omega at 1Hz, and the phase angle variation within the frequency range of 0.5-50Hz is 0-30 degrees.
Owner:MINJIANG UNIV

Convenient-to-mount ammeter

The invention discloses a convenient-to-mount ammeter which comprises a box. An ammeter body is arranged in an inner cavity of the box, a threaded hole is formed in each of two sides of the box, a threaded column is connected in each of the two threaded holes in a threaded manner, opposite ends of the two threaded columns are fixedly connected with a first retaining block and a second retaining block respectively, the first retaining block is positioned on the left side of the second retaining block, the first retaining block and the second retaining block are positioned on two sides of the ammeter body, and the bottom ends of opposite faces of the first retaining block and the second retaining block are fixedly connected with a first clamping block and the second clamping block respectively. By arranging a storage groove, a spring, a moving block, a first rotating shaft and a hinging seat and through cooperation of a U-shaped groove, the second clamping plate and the first clamping plate, when the moving block slides to the U-shaped groove, the spring ejects the moving block to enable the same to be clamped in the U-shaped groove by leftwards pushing the second clamping plate and rightwards pushing the first clamping plate, so that effect of fixing the second clamping plate and the first clamping plate is realized; the ammeter is convenient to mount, so that maintenance efficiency is improved, and time and labor are saved.
Owner:无锡市海升电子科技有限公司

Layered two-dimensional material interlayer-confined metal or metal compound composite material as well as preparation method and application thereof

The invention discloses a layered two-dimensional material interlayer-confined metal or metal compound composite material as well as a preparation method and application thereof. The composite material comprises a layered two-dimensional material and a metal or metal compound confined among layers of the layered two-dimensional material. The method comprises the following steps: 1) performing lithiation treatment on the layered two-dimensional material to obtain a lithiated layered two-dimensional material; and 2) mixing the dried lithiated layered two-dimensional material, a metal salt and asolvent, performing sealing in a reaction kettle, and performing a hydrothermal reaction to obtain the layered two-dimensional material interlayer-confined metal or metal compound composite material.The preparation method disclosed by the invention can realize controllable preparation of a series of two-dimensional material interlayer-confined metal and metal compound composite materials; and theprepared composite material, especially a two-dimensional molybdenum disulfide interlayer-confined metal hydroxide composite material has the advantages of high electrocatalytic activity and good stability when being used as a hydrogen evolution catalyst, and has application prospects in the field of production of hydrogen by electrolysis of water.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Camera module, dust prevention and fixing method and installation method of camera module

The invention relates to a camera module, a dust prevention and fixing method and an installation method of the camera module, wherein the camera module comprises a circuit board, a plurality of passive elements and adhesive layers, wherein the passive elements are fixedly arranged on the circuit board; the adhesive layers cover the surfaces of the passive elements; the adhesive layers are filled in gaps among the passive elements. The dust prevention and fixing method comprises the following steps: dispensing adhesive on the surfaces of the passive elements of the camera module to form the adhesive layers; filling the gaps among the passive elements with the adhesive layers. The installation method of the camera module comprises the following steps: after applying gold threads, before mounting a bracket, dispensing adhesive on a circuit board area attached below the bracket and the surfaces of the passive elements of the camera module to form the adhesive layers; filling the gaps among the passive elements with the adhesive layers. The camera module, the dust prevention and fixing method and the installation method of the camera module can solve the problem that foreign matters are easily hidden among passive elements and easily fall down during vibration.
Owner:NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD +3

In-vitro mark for fish and mark gun thereof

The invention discloses an in-vitro mark for fish and a mark gun of the in-vitro mark. The mark comprises a U-shaped body made of plastic material; a pin is arranged at the inner side of one end of the U-shaped body, and a pin hole corresponding to the pin is arranged at the other end. The mark gun utilizes the mark; the pin on the mark can pass through fin rays on the fish body and is fixed in the pin hole on the U-shaped body to form an annular mark, which is firmly fixed on the base part of each fin ray just as a ring, and an opening of membrane between the fin rays is not increased so as to solve the problem that the mark easily falls off. Only the fin rays are marked; muscle of the fish body is not damaged; the fish death can be reduced, and the survival rate of the discharged fish can be ensured. Meanwhile, the quantity of the marks is large, so that a method for marking by the mark gun is fast; the marking time can be reduced, and the work efficiency can be improved.
Owner:湖南省水产科学研究所

Touch control type remote controller and touch control method thereof

The invention provides a touch control type remote controller and a touch control method thereof. The touch control type remote controller comprises a touch panel and one or more physical keys, wherein the lower surface of the touch panel is in contact with the upper surfaces of the physical keys, so that when the touch panel is pressed down, the physical key is triggered; the touch panel is a capacitive touch panel. The touch control type remote controller can simultaneously provide two touch control operation modes, caters to the operation habits of different users, improves operation efficiency of a television and enables users not to spend more time in learning the operation modes.
Owner:LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD

Composite decoration foam concrete building block and manufacture method thereof

The invention provides a composite decoration foam concrete building block and a manufacture method thereof. The composite decoration foam concrete building block comprises a foam concrete building block body, wherein a decoration panel is compounded on at least one lateral wall of the foam concrete building block body, and a connection structure is arranged on the decoration panel to integrally composite the decoration panel and the foam concrete building block. The decoration panel is made of decoration ceramic tiles, marbles or artificial marbles, and the connection structure is a wedge-shaped convex block or a convex strip. The decoration panel is integrally compounded with the foam concrete building block, and decoration of an external wall is not needed after a wall is built, so that the composite decoration foam concrete building block is more convenient to use and good in decoration effect, solves the problem that the decoration panel is apt to fall off radically, has the advantages of high safety, light weight, high strength and good heat insulation and sound insulation effects. The composite decoration foam concrete building block and the manufacture method thereof are convenient to construct and good in stability and greatly reduce labor intensity and building cost.
Owner:重庆市旌弘建材有限公司

Process for preparing reaction functional macromolecule/Al2O3 nano composite particles

InactiveCN1654488AGood compatibilitySolve the hard-to-cover problemsChemical reactionEmulsion
Nanometer alumina particle, coupling agent, olefin monomer and active functional group containing olefin monomer as material are made to polymerized in micro emulsion or micro suspension with water medium to prepare nanometer composite functional polymer / alumina particle. The product has the structure with nanometer alumina as core, organic olefin polymer as shell and active functional group on the surface of the shell. The particles have shells connected via chemical bond, particle size smaller than 100 nm and surface functional groups with very high chemical reaction activity. The present invention is suitable for various kinds of inorganic nanometer particles in different shapes and surface properties, and has excellent application foreground in nanometer technology.
Owner:TSINGHUA UNIV

Laying method of automatic texture formation particle-free environmentally-friendly plastic track

The invention discloses a laying method of an automatic texture formation particle-free environmentally-friendly plastic track. The method comprises the following steps: S21, laying a substrate layer: mixing an environmentally-friendly single-component water solidified plastic track material with black micelles according to a weight ratio of 1:4-6, and laying the substrate layer on a dry and solidified cement base or asphalt base; S22, laying a reinforcing layer: spreading a layer of the black micelles on the dry and solid base layer, and lying the environmentally-friendly single-component water solidified plastic track material to cover the substrate layer; and S23, laying an automatic texture formation layer: uniformly mixing 10-12 parts of an automatic texture formation finish, 1-3 parts of EPDM particle rubber powder and 3-6 parts of quartz sand to form an automatic texture formation layer material, fully stirring, and spraying the obtained material on the dry and solidified reinforcing layer. The track has the advantages of environmentally friendly material, no shedding of particles, good durability, plump and uniform surface textures, high tensile strength and long service life, and all performance indexes of the track accord with technical requirements of International Association of Athletics Federations and GB / T14833-2011.
Owner:广州帝森康体设备有限公司

A light-emitting component with reflection and current blocking characteristics and a manufacture method thereof

The invention provides a light-emitting component with reflection and current blocking characteristics and a manufacture method thereof. The method comprises the following steps 1) growing a buffer layer, an n-type gallium-nitride-based epitaxial layer, an active layer and a p-type gallium-nitride-based layer on a substrate epitaxially in sequence; 2)etching a groove in the surface of the p-type gallium-nitride layer; 3) filling the groove in the p-type gallium-nitride layer with a metallic reflection material; 4) preparing a current blocking layer, wherein the current blocking layer covers the metallic reflection material; and 5) preparing a transparent conductive layer on the current blocking layer, and at last preparing a p-type electrode and an n-type electrode. According to the light-emitting component with the reflection and current blocking characteristics and the manufacture method thereof, external quantum efficiency of the light-emitting component can be improved; the cost is low; process is simple and the reliability is high.
Owner:广东昭信集团股份有限公司

High-temperature infrared radiation coating and preparation method thereof

The invention discloses a high-temperature infrared radiation coating and a preparation method thereof. The coating is prepared by mixing a solid material and a liquid material according to a weight ratio of 1:1.2, wherein the particle size of the components of the coating is between 100 nanometers and 2 micrometers; the liquid material is an adhesive; the solid material comprises the following components in percentage by weight: 20 to 35 percent of zirconium silicate, 5 to 15 percent of cordierite, 30 to 45 percent of brown fused alumina, 5 to 15 percent of silicon oxide, 5 to 15 percent of chromium oxide, 5 to 15 percent of ferric oxide, 1 to 5 percent of clay and 1 to 5 percent of modified bentonite. The coating has improved radiation performance and service life and has the characteristics of simple preparation process and low cost; when used in furnaces, the coating does not generate volatile matters and does not pollute products; the coating has excellent dispersion state and can be stored for a long time without dimixing; and the use temperature range is wide, and the coating is applicable to different furnace types.
Owner:唐山晟科陶瓷制品有限公司

Catalytic filtering material with TiO2 thin film protective layer and preparation method for catalytic filtering material

The invention provides a catalytic filtering material with a TiO2 thin film protective layer and a preparation method for the catalytic filtering material. The preparation method comprises the following steps of loading a denitration catalyst on a filtering material serving as a substrate by using an ultrasonic method, and wrapping the surface of the filtering material with a layer of TiO2 by using a sol-gel method to prepare the catalytic filtering material with the TiO2 thin film protective layer. According to the catalytic filtering material and the preparation method, the problem of high falling rate of the denitration catalyst in a using process is solved by the TiO2 thin film protective layer; TiO2 has a great number of acid sites, so that the denitration efficiency of the catalyst can be greatly improved, and the loading capacity of the catalyst is reduced; in addition, the condition that the service life of a polyphenylene sulfide needled mat filtering material is shortened by the abrasion of particles in flue gas can also be avoided by the TiO2 thin film protective layer; the catalytic filtering material with the TiO2 thin film protective layer is high in economy and practicability.
Owner:FUZHOU UNIV
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