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37results about How to "Reduce the degree of separation" patented technology
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Transparent polyurethane coating composite and preparation method thereof
ActiveCN102604526AIncrease crosslink densityImprove mechanical propertiesPolyurea/polyurethane coatingsCarbon numberPolyester
The invention discloses a transparent polyurethane coating composite which is composed of a component A and a component B, wherein the component A is polyester polyol, and the component B is polyisocyanate. The transparent polyurethane coating composite is characterized in that polyester polyol comprises aliphatic and cycloaliphatic diacids with a carbon number of C6-C10; polyester polyol is prepared through carrying out condensation polymerization on one or more of aliphatic and cycloaliphatic dihydric alcohols with a carbon number of C2-C7 and one or more of aliphatic polyatomic alcohols with a carbon number of C2-C7, the molecular weight range of the polyester polyol is 500-5000, and the MWD (molecular weight distribution) of the polyester polyol is 1.1-2.1; the component B is polyisocyanate; and the equivalence ratio of reactive groups of polyisocyanate and polyester polyol is (1.1:1)-(2.5:1). The transparent polyurethane coating composite prepared by the method disclosed by the invention is good in impact property and weather resistance, the light transmittance is greater than or equal to 85.0%, and the impact strength is greater than or equal to 70%, and after the transparent polyurethane coating composite is subjected to QUV ultraviolet accelerated aging for a week, the appearance and light transmittance of a coating are not changed. The coating composite prepared by the method disclosed by the invention can be applied to the fields with higher requirements on the coating performance.
Owner:GUANGDONG INST OF RARE METALS
Compound, light-emitting material, device and display device
ActiveCN108358905ALow Photoluminescence Quantum YieldReduce the degree of separationSilicon organic compoundsSolid-state devicesFluorescenceOrganic light emitting device
The invention relates to the technical field of organic electroluminescent materials and particularly relates to a compound, a light-emitting material, a device and a display device. The compound hasa structure expressed by a formula which is as shown in the description. The compound can be used as a thermally activated delayed fluorescent (TADF) material. When the compound is used as a light-emitting material or a main body material of a light-emitting layer of an organic light-emitting device, the compound can achieve high light-emitting efficiency.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
LED epitaxial growth method for improving radiation recombination efficiency
PendingCN111223764AImprove luminous efficiencyIncrease hole concentrationSemiconductor/solid-state device manufacturingChemical vapor deposition coatingElectron blocking layerMultiple quantum
The invention discloses an LED epitaxial growth method for improving radiation recombination efficiency. The method sequentially comprises the steps of processing a substrate, growing a low-temperature buffer layer GaN, growing an undoped GaN layer, growing a Si-doped N-type GaN layer, growing a multi-quantum well layer, growing an AlGaN electron blocking layer, growing a Mg-doped P-type GaN layerand cooling, wherein the step of growing the multi-quantum well layer sequentially comprises the sub-steps of growing an InGaN transition layer, growing an InGaN well layer, growing a doped gradientSiN layer, growing a doped gradient MgN layer, growing a GaN barrier layer doped with Mg in a linear gradient mode and growing an InAlN layer. According to the method, the problems of low quantum wellgrowth quality and low quantum well radiation recombination efficiency in the existing LED epitaxial growth method are solved, so that the luminous efficiency of the LED is improved.
Owner:XIANGNENG HUALEI OPTOELECTRONICS
Bistable wing of water-air amphibious air vehicle
ActiveCN106827991AReduce structural weightReduce the degree of separationConvertible vehiclesWing adjustmentsTrailing edgeWing section
The invention discloses a bistable wing of a water-air amphibious air vehicle, relates to an air vehicle wing and aims at solving the problem that under different pneumatic environmental conditions, single-shaped wings of an existing air vehicle often cannot improve the pneumatic performance under a whole flight envelope at low speed and high speed and cannot meet the flight demand under the low speed and high speed condition. The bistable wing comprises a wing rib and a bistable structure. A longitudinal section of the wing rib is an NACA supercritical wing section, and an elastic rod is connected between the front edge and the rear edge of the wing rib. The bistable structure comprises a quadrangular connecting rod mechanism and two pneumatic muscle drivers. One pneumatic muscle driver is installed between two opposite corners of the quadrangular connecting rod mechanism, one top point of each quadrangular connecting rod mechanism is installed on the wing rib, the other top point of each quadrangular connecting rod mechanism is installed on the elastic rod, and the two pneumatic muscle drivers are located in the same vertical plane and are perpendicularly arranged. The bistable wing is used for the water-air amphibious air vehicle.
Owner:HARBIN INST OF TECH
High-load electrode, preparation method and lithium ion battery thereof
ActiveCN111430664AImprove distributionImprove charge and discharge performanceElectrode rolling/calenderingSecondary cellsPole pieceSlurry
The invention relates to a high-load electrode. The periphery of a current collector is at least coated with two layers of slurry from inside to outside, and the slurry comprises an active substance,a conductive agent and a binder; in the vertical direction from the outer surface of the pole piece to the surface of the current collector, the weight ratio of the binder in each layer of slurry is sequentially increased, and the weight ratio of the conductive agent is sequentially increased, wherein the rolling compression amount of each layer of slurry is sequentially reduced, and the sum of the rolling thicknesses of all the layers of slurry reaches the thickness required by design. By applying the high-load electrode, the liquid absorption time can be shortened; the infiltration effect can be improved; and the corresponding lithium ion battery has excellent gram volume exertion, long cycle and low-temperature discharge performance.
Owner:TIANJIN ENERGIES
Projection screen, large-size spliced screen and projection system
ActiveCN106019796AReduce the degree of separationReduce spatial energy distribution variationProjectorsFresnel lensProjection image
The invention discloses a projection screen which comprises a Fresnel lens layer and a micro lens layer located on the light-out side of the Fresnel lens layer. The micro lens layer comprises a plurality of micro lens sets distributed in an array. Each micro lens set sequentially comprises a first micro lens which is a concave lens and a second micro lens which is a convex lens in the projection image light beam emitting direction, wherein the dispersion coefficient of the first micro lens is smaller than that of the second micro lens. Projection image light beams at least pass through the Fresnel lens layer, are finally emitted through the micro lens layer and enter human eyes. According to the technical scheme, two kinds of lenses different in dispersion coefficient are arranged, the rear lenses can compensate for deflection difference of light beams transmitted by the front lenses, the coincidence degree of primary light beams is improved, and the color error phenomenon caused when images are watched on the projection screen at different view angles is eliminated.
Owner:HISENSE
Fluorine-containing epoxy curing agent capable of normal-temperature curing, and preparation and application thereof
ActiveCN104877111AMaximize the modification effectExcellent surface hydrophobicity and oleophobicityEpoxyChemical industry
The invention discloses a fluorine-containing epoxy curing agent capable of normal-temperature curing, and preparation and application thereof, belonging to the field of chemical industry synthesis. The preparation of the fluorine-containing epoxy curing agent comprises the following steps: preparation of a fluorine-containing epoxy random copolymer solution, and preparation of the fluorine-containing epoxy curing agent. The curing agent contains fluorine-containing groups and amino groups capable of reacting with epoxy groups, can participate in curing reaction of the epoxy resin, can compound the fluorine-containing groups with the epoxy resin on the molecular level, lowers the phase separation degree, and maximally displays the modification effect of the fluorine-containing groups. After being modified by the fluorine-containing epoxy curing agent, the epoxy resin has excellent surface hydrophobicity / oleophobicity and excellent mechanical properties.
Owner:GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
Rear projection screen and projection system
The invention discloses a rear projection screen. The rear projection screen comprises a Fresnel lens layer, a cylindrical lens layer and a micro-lens layer which are sequentially arranged in the light-out direction of a projection lens. The micro-lens layer comprises a micro-lens set composed of first micro-lenses. The first micro-lenses are positive lenses, the focal distances are larger than those of cylindrical lenses of the cylindrical lens layer, and therefore all divergent primary light beams converge again through the long focal distances; due to the fact that convergence is achieved through the relatively long focal distances, the re-divergence degree generated after all the primary light beams converge is reduced compared with the divergence degree of light beams directly emitted from the cylindrical lens layer, the overlap ratio of all the primary light beams is increased, and the color cast problem generated when images are viewed at different visual angles of a projection screen is solved. The invention further discloses a projection system with the projection screen.
Owner:HISENSE
U-PVC pipe with high impact resistant performance
The invention relates to a U-PVC pipe with a high impact resistant performance. The U-PVC pipe comprises the following components in parts by weight: 100 parts of PVC-SG8 resin, 1 to 10 parts of ABS resin powder, 1 to 10 parts of solubilizer, 1 to 10 parts of heat stabilizer, 0.1 to 5 parts of lubricant, 0 to 5 parts of processing modifier, 5 to 50 parts of filling agent, and 0.5 to 5 parts of titanium dioxide. The pipe comprises ABS powder, the chain sections of butadiene rubber of ABS can absorb the impact energy, and thus the pipe can well resist the impact. At the same time, the amount of added ABS powder is little, the influence on the processing property and product stability is small, and the production is barely affected. A proper amount of CPE is added to increase the capacity of the ABS / PVC system, in the microscopic view, the phase separation degree is decreased, and thus the impact resistant effect is enhanced.
Owner:ZHEJIANG TONGZHENG PIPE TECH
Phase separation preventing gel low-temperature phase-change material and preparation method thereof
InactiveCN106753257AImprove phase separationWide range of raw materialsHeat-exchange elementsCelluloseGel based
The invention discloses a phase separation preventing gel low-temperature phase-change material which comprises the following components in parts by weight: 1-5 parts of a cellulose system high water-absorbent resin gel base material, 90-98 parts of a main energy storage agent and 1-5 parts of a nucleating agent. According to the phase-change material disclosed by the invention, the cellulose system high water-absorbent resin gel base material with a thickening effect which is prepared by grafting cellulose with acrylamide is used in the phase-change material, so that the phase separation phenomenon of the phase-change material can be improved; the phase-change material is wide in raw material source, low in cost, free of toxin or smell, safe and reliable, good in stability, easy in biodegradability and can be popularized and used in cold chain transportation; the adjustable temperature range of the phase-change material is minus 15 DEG C to minus 25 DEG C, and the phase-change latent heat of the phase-change material is 130-180J / g.
Owner:SUZHOU ANTEK INDAL +1
Method for preparing mixed filler-modified heat-resistant anticorrosive coating
InactiveCN108424710AIncrease activationImprove heat resistanceFireproof paintsAnti-corrosive paintsEpoxyFiltration
The invention discloses a method for preparing a mixed filler-modified heat-resistant anticorrosive coating. The method comprises the following steps: performing ultrasonic treatment on a graphene oxide-polypyrrole solution; regulating the pH; adding hydrazine to be stirred and mixed uniformly; condensing and refluxing in an oil bath; performing suction filtration; adding acetone and deionized water for centrifugal washing; drying to obtain a graphene-polypyrrole compound; stirring a barium sulfate suspension in a constant-temperature bath; adding a compound modifier to be stirred; filtering when the mixture is hot; drying, grinding and screening to obtain modified barium sulfate; drying calcium carbonate in a vacuum oven; adding a coupling agent; modifying calcium carbonate with a heatingdry method; drying talc powder in a hot air oven; adding an aluminate coupling agent; melting and blending at a high speed to prepare the coupled modified talc powder; uniformly mixing waterborne epoxy resin with deionized water; performing ultrasonic separation; adding the modified filler; mixing and ball-milling; ultrasonically stirring and dispersing uniformly; mixing with a waterborne epoxy curing agent; ultrasonically stirring; adding an emulsifying agent, a dispersing agent, a defoaming agent and a wetting agent; stirring and mixing uniformly to obtain the heat-resistant anticorrosive coating.
Owner:WUHU BAOYI AMUSEMENT EQUIP
Multi-stage thermal control logic switch based on near-field thermal radiation
ActiveCN112331765AOvercome limitationsImprove discretenessVacuum evaporation coatingSputtering coatingVacuum gapThermal radiation
The invention discloses a multi-stage thermal control logic switch based on near-field thermal radiation. The invention belongs to the field of thermal regulators. The invention aims to solve the technical problem that the existing logic thermal switch can only support the thermal Boolean operation of one signal. The multistage thermal control logic switch based on near-field thermal radiation iscomposed of a receiving end composite structure, a transmitting end composite structure and a spacer arranged between the receiving end composite structure and the transmitting end composite structure. A vacuum gap is formed between the receiving end composite structure and the transmitting end composite structure through the spacer. The receiving end composite structure and the transmitting end composite structure are completely the same and are symmetrically arranged relative to the spacer, and the receiving end composite structure sequentially comprises a receiving end substrate, a receiving end inner layer film and a receiving end outer layer film from top to bottom; and the transmitting end composite structure sequentially comprises a transmitting end outer layer film, a transmittingend inner layer film and a transmitting end substrate from top to bottom. By controlling near-field radiant heat exchange between devices, the possibility of carrying out on-off logic operation on a micro-scale is realized.
Owner:HARBIN INST OF TECH
Heavy oil hydrogenation catalyst and preparation method thereof
ActiveCN108786833AReduce the degree of separationSmall apertureHeterogenous catalyst chemical elementsMetal/metal-oxides/metal-hydroxide catalystsPore distributionHydrogen
The invention discloses a heavy oil hydrogenation catalyst and a preparation method thereof. The heavy oil hydrogenation catalyst is carried on macroporous aluminum oxide with double pore distribution. The macroporous aluminum oxide is high porosity, the porosity ratio of holes of 5-20 nm is 15-55%, and that of large holes of 100-1000 nm is 40-75%; the large holes of the macroporous aluminum oxideare uniformly distributed and three-dimensionally communicated. The preparation method of the heavy oil hydrogenation catalyst comprises, after the macroporous aluminum oxide is shaped, carrying hydrogenation active components onto the macroporous aluminum oxide to obtain the heavy oil hydrogen catalyst. The heavy oil hydrogenation catalyst is good in application effects in the fields of hydrogenation of hydrocarbon, heavy oil and residual oil.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of barium sulfate-calcium carbonate compound modified epoxy resin coating
InactiveCN108559360AIncrease activationImprove heat resistanceEpoxy resin coatingsEpoxyResin coating
The invention discloses a preparation method of a barium sulfate-calcium carbonate compound modified epoxy resin coating. The preparation method is characterized in that the compound modified epoxy resin coating is prepared by heating a graphene oxide dispersion liquid, adding p-phenylenediamine dropwise, stirring, dissolving, reacting at the constant temperature, filtering, centrifuging and washing with deionized water and absolute ethyl alcohol, drying to obtain a graphene oxide-p-phenylenediamine composite; stirring a barium sulfate suspension liquid in a thermostatic bath, adding a compound modifier, stirring, filtering while the mixture is hot, drying, grinding, and screening to obtain modified barium sulfate; drying calcium carbonate in a vacuum drying oven, adding a silane couplingagent and a titanate coupling agent, heating and modifying calcium carbonate through a dry method; mixing and stirring deionized water ultrasonic dispersion liquid of the graphene oxide-p-phenylenediamine composite and deionized water ultrasonic dispersion liquid of a waterborne epoxy resin, ultrasonically treating, layering, pouring out water, heating the mixed solution in the drying oven, mixingwith a waterborne epoxy hardener, ultrasonically stirring, adding an emulsifier, a dispersing agent, a defoamer and a wetting agent, and ultrasonically treating.
Owner:WUHU BAOYI AMUSEMENT EQUIP
Quantum well structure, LED chip and manufacturing method
PendingCN114156382AComponent distribution is evenImprove segregationSemiconductor devicesQuantum efficiencyLattice mismatch
The invention provides a quantum well structure, an LED chip and a manufacturing method, the quantum well structure comprises a plurality of quantum well laminations, each quantum well lamination comprises an In < y > Ga < 1-y > N layer, a superlattice treatment layer and a GaN layer, and each superlattice treatment layer comprises an InN layer and an In < x > Ga < 1-x > N layer. Due to the fact that the mobility of In in the InN layer and the In < x > Ga < 1-x > N layer is high, InN vacancies decomposed by heat in the In < y > Ga < 1-y > N layer of the quantum well structure can be effectively compensated, lattice defects of the In < y > Ga < 1-y > N layer can be repaired, segregation and enrichment phenomena of In in the In < y > Ga < 1-y > N layer are improved at the same time, component distribution of In is uniform, a clear interface with good quality is provided for subsequent GaN growth, and the yield of GaN is improved. And the stress generated by lattice mismatch of the InyGa1-yN layer and the GaN layer is reduced, so that the wavelength uniformity and the internal quantum efficiency are improved.
Owner:江西乾照光电有限公司
Transparent polyurethane coating composition and preparation method thereof
ActiveCN102604526BIncrease crosslink densityImprove mechanical propertiesPolyurea/polyurethane coatingsCarbon numberPolyester
Owner:GUANGDONG INST OF RARE METALS
Flake oxide graphene GO free from high temperature oxidation process and preparation method thereof
ActiveCN105712346AThickness distribution is narrowHigh degree of oxidationGrapheneNanotechnologySodium nitrateHot Temperature
The invention discloses a flake oxide graphene GO free from a high temperature oxidation process and a preparation method thereof. The method comprises the following steps: by using natural graphite as a carbon source, and using sodium nitrate, potassium permanganate, sulfuric acid and hydrogen peroxide as oxidizing agents, an improved Hummers method is used to control the adding order and speed of the oxidizing agents, the oxidation time is modulated in mid temperature (35 DEG C), the oxidation stage is removed at a high temperature (98 DEG C and more), the effects that the oxidizing agents are sufficiently contacted with the graphite and the oxidation is sufficient are achieved so as to prepare the uniform flake GO. The GO prepared through the method disclosed by the invention is high in oxidation degree, the size and separation degree of the GO flakes are controllable, the preparation time is short, the requirement to experiment equipment is reduced, and the adaptability thereof is further improved.
Owner:SHAANXI UNIV OF SCI & TECH
Low-temperature denitration catalyst and application thereof
ActiveCN109126815AReduce the degree of separationSmall apertureGas treatmentHeterogenous catalyst chemical elementsFlue gasUltimate tensile strength
The invention discloses a low-temperature denitration catalyst and an application. The catalyst comprises, by weight, 75%-94% alumina carrier, 3%-20% Fe2O3 and 3%-20% MnO2; the catalyst is micro-spherical, the diameter is 2-6 millimeters, the total porosity is 60-85%, the proportion of mesopores of 5-20 nano-meters in all pores is 15-55%, and the proportion of macropores of 100-1000 nano-meters is40-75%; the distribution of the macropores is uniform and the macropores are communicated in three dimensions; the crushing strength of the lateral pressing is 5-20N / mm. The catalyst is applied to alow-temperature denitration reaction, can effectively remove the nitrogen oxide and sulfur oxide in flue gas, does not cause the problem of blocking a bed layer by ammonium bisulfate, and prolongs theoperation period of the device.
Owner:CHINA PETROLEUM & CHEM CORP +1
Coating process of water-based plastic substitute
PendingCN113185910AGood flexibilityImprove hydrolysis resistancePretreated surfacesPolyurea/polyurethane coatingsIsocyanatePolyester
The invention relates to the technical field of paper plastic processing, in particular to a coating process of water-based plastic substitute. The invention is improved from polyol, and polyester polyol is selected between polyether polyol and polyester polyol. Although polyurethane synthesized by polyether polyol has better flexibility and hydrolysis resistance, polyurethane synthesized by polyester polyol has stronger cohesive energy and more excellent after-tack resistance, in addition, excessive isocyanate with a cyclic monomer is adopted to react with polyester polyol, so that the tensile strength of the polyurethane is improved, and the tensile strength of the polyurethane is improved. The further initiation of the cyclic monomer can improve the strength and water resistance of the coating, then the cyclic monomer reacts with hydroxyethyl acrylate and a hydrophilic chain extender to form a polyurethane acrylate aqueous system, the system has good emulsion stability, and an adhesive film with good hardness, flexibility, adhesiveness, after-tack resistance and water resistance can be rapidly formed through photocuring.
Owner:东莞市冠力胶业有限公司
Large-particle-size waterborne polyurethane emulsion and preparation method thereof, and application of large-particle-size waterborne polyurethane emulsion in impregnated gloves
PendingCN113845641AReduce the degree of microphase separationGood flexibilityGlovesProtective garmentIsocyanateEmulsion
The invention relates to a large-particle-size waterborne polyurethane emulsion and preparation method thereof, and application of large-particle-size waterborne polyurethane emulsion in impregnated gloves. The raw material formula of the polyurethane emulsion comprises a polyol component, isocyanate, a hydrophilic chain extender, a cross-linking agent, an alcohol chain extender, an amine chain extender, a catalyst, a neutralizer and water, wherein the polyhydric alcohol component comprises polyhydric alcohol with functionality of 3 or more and polyhydric alcohol with functionality of 2 or more; and the cross-linking agent is a cross-linking agent having functionality of 3 or more. According to the invention, a polyurethane structure of a cross-linked network is prepared by optimizing a polyhydric alcohol component and using the cross-linking agent with polyfunctionality, the hydrophilic chain extender, the amine chain extender and other substances, and hydrophilic groups are distributed on a polyurethane molecular chain and are stably dispersed in deionized water, so the waterborne polyurethane emulsion with a particle size of 4000 nm or above is obtained. The emulsion is used for preparing gloves, and glove cores do not need to be pretreated and are directly impregnated, molded and cured.
Owner:XUCHUAN CHEM SUZHOU
A kind of normal temperature curable fluorine-containing epoxy curing agent and its preparation and application
ActiveCN104877111BMaximize the modification effectExcellent surface hydrophobicity and oleophobicityEpoxyChemical synthesis
The invention discloses a fluorine-containing epoxy curing agent curable at room temperature and its preparation and application, belonging to the field of chemical and chemical synthesis. The preparation of the fluorine-containing epoxy curing agent includes two steps of preparing a fluorine-containing epoxy random copolymer solution and preparing a fluorine-containing epoxy curing agent. The curing agent not only contains fluorine-containing groups, but also contains amino groups that can react with epoxy groups, and can participate in the curing reaction of epoxy resins, so that the fluorine-containing groups and epoxy resins can achieve molecular recombination and reduce the risk of phase separation. To maximize the modification effect of fluorine-containing groups. After the epoxy resin is modified by using the fluorine-containing epoxy curing agent of the present invention, the surface hydrophobicity and oil repellency of the epoxy resin and the mechanical properties are both excellent.
Owner:GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
a pressure sensitive adhesive
ActiveCN109096947BImprove interface compatibilityImprove adhesionNon-macromolecular adhesive additivesPolyureas/polyurethane adhesivesPolyethylene glycolBonding process
The invention discloses a pressure-sensitive adhesive and belongs to the technical field of pressure-sensitive adhesives. A self-made adhesive is prepared from peach gum, sticky rice juice and the like, wherein humic acid is a mixture containing carboxyl and phenolic hydroxyl groups. The pressure-sensitive adhesive can provide weak acidic environment action. Active groups such as carboxyl and aldehyde groups can play a bridging action in the bonding process, so that the bonding strength is further enhanced. By taking methoxy polyethylene glycol of a single functional group as a long suspensionchain, composite filler is introduced into a polyurethane component, so that the separating degree of microphases of soft and hard sections in the polyurethane component is reduced. Coconut shells are crushed, acid-impregnated and steam-detonated to be subjected to fermentation with gelatin, casein and lactobacillus bulgaricus, so that the adhesive force and toughens of a pressure-sensitive adhesive system are improved. The invention solves the problem that a common pressure-sensitive adhesive is poor in adhesive force and toughness.
Owner:深圳市昌元兴科技有限公司
Adhesive for cooking packaging film and preparation method thereof
InactiveCN106753152AReduce the degree of separationDeformability limitNon-macromolecular adhesive additivesPolyureas/polyurethane adhesivesEpoxyMethacrylate
The invention discloses an adhesive for a cooking packaging film. The adhesive is prepared from reactants of isocyanate, 12-hydroxystearic acid, polyvinyl alcohol, methacrylate, epoxy resin and a nano filling agent, wherein a mass ratio of the isocyanate, the 12-hydroxystearic acid and the polyvinyl alcohol is 1 to (0.1 to 0.5) to (0.1 to 1.0), and preferably, the mass ratio is 1 to (0.1 to 0.3) to (0.2 to 0.5); the dosage of the epoxy resin is 0.01 to 0.1 time of that the isocyanate; the dosage of the methacrylate is 0.2 to 0.6 time of that the isocyanate; the dosage of the nano filling agent is 0.01 to 0.05 time of that of the isocyanate. According to the adhesive disclosed by the invention, the problems that the adhesive for a cooking composite film is insufficient in high temperature resistance and poorer in material adaptability are solved, high-temperature-resisting cooking at 130 DEG C for 1 hour can be carried out, deformation and lamination cannot happen, the peeling strength after cooking is up to AD-502 / CAT-10, and the adhesive can be applied to adhesion of various organic materials.
Owner:SHANDONG ZHONGSU TAIFU TECH
A kind of polyester resin for glass base material coating and its preparation method and coating
The invention belongs to the technical field of polymer materials, and specifically discloses a polyester resin with high hardness and good wear resistance for glass substrate coating and a preparation method thereof, and also discloses a coating containing the polyester resin , the polyester resin is prepared by reacting dibasic carboxylic acid with 2,4:3,5-biscamphor-D-mannitol, carbonate diol and linear organosilicon alcohol, and the poly The adhesion between ester resin and glass is greatly increased, and the 2,4:3,5-biscamphor-D-mannitol used at the same time can effectively improve the strength and hardness of the resin, making the entire polyester molecular chain elastic, greatly improving its wear resistance.
Owner:中瀚新材料科技有限公司
Transparent agent for treating root tip of plant and application thereof
InactiveCN109443883AMorphologically normalImprove clarityPreparing sample for investigationMaterial analysis by optical meansMedicineClearing Agent
The invention provides a transparent agent for treating a root tip of a plant, comprising hydrated trichloroacetaldehyde, glycerin and water. The ratio of the hydrated trichloroacetaldehyde, the glycerin to the water in g / ml / ml is 3-9:1:3, wherein the pH of the clearing agent is 1.1-7.5. The invention also provides the application of the transparent agent in transparent treatment of the root tip of the plant, a transparent treatment method and a method for adjusting transparent treatment conditions of the root tip of the plant. The transparent agent provided by the invention adjusts the groupdistribution ratio in the existing transparent agent, and is applied to a material for treating the root tip of the plant to obtain the root tip of the plant with small degree of cell plasmolysis, normal shape, high definition and suitable observation. The transparent agent is beneficial to observe and statistically and quantitatively analyze the root tip of the plant. The optimal conditions for the transparent treatment of the root tip of the plant can also be filtered according to the transparent treatment effect of the root tip, the proportion of cell plasmolysis is reduced, the proportionof normal morphological cells is increased, the observation definition of cells is improved, and reference is provided for the development of the overall transparency technology of the root tip of theplant.
Owner:QILU NORMAL UNIV
LED epitaxial wafer and preparation method thereof
ActiveCN105428478BImprove internal quantum efficiencyReduce the degree of separationSemiconductor devicesCavitationQuantum well
Owner:XIANGNENG HUALEI OPTOELECTRONICS
Osteotomy protector for unicompartmental knee arthroplasty
InactiveCN113081094AEasy to manufactureLow costDiagnosticsSurgeryUnicompartmental knee arthroplastyEngineering
The invention belongs to the technical field of medical auxiliary instruments, and provides an osteotomy protector for unicompartmental knee arthroplasty. The osteotomy protector comprises an arc-shaped protection section, a grab handle and a connecting section, wherein the arc-shaped protection section is composed of a first arc-shaped section and a second arc-shaped section; the arc-shaped protection section is matched with a joint in shape and size; the thickness of the arc-shaped protection section is 2-4 mm, and the width of the arc-shaped protection section is 1.5-3 cm; the first arc-shaped section is attached to the bone surface of the rear portion of the joint; and a gap is formed between the second arc-shaped section and the joint. Therefore, in the unicompartmental knee arthroplasty of a fixing pad, the arc-shaped protection section is located around the joint, a saw and tissue around the joint are separated, and ligaments, soft tissue and important blood vessels around the joint are prevented from being accidentally injured by the saw. Therefore, the protector forunicompartmental knee arthroplasty is easy to manufacture, low in cost and convenient to use; insertion operation is more convenient due to the arc-shaped design, the use is more convenient, the separation degree of the joint and the soft tissue or ligament or blood vessels around the joint is reduced, operative wounds are reduced, the patient can recover as soon as possible after an operation, and the large-scale popularization of the protector is facilitated.
Owner:SHANGHAI YANGPU CENT HOSPITAL
Bistable wing of a water-air amphibious vehicle
ActiveCN106827991BReduce structural weightReduce the degree of separationConvertible vehiclesWing adjustmentsVertical planeTrailing edge
Owner:HARBIN INST OF TECH
Compound, luminescent material and device, and display device
ActiveCN108358905BLow Photoluminescence Quantum YieldReduce the degree of separationSilicon organic compoundsSolid-state devicesFluorescenceDisplay device
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
A kind of flaky graphene oxide GO without high temperature oxidation process and preparation method thereof
The invention discloses a flake oxide graphene GO free from a high temperature oxidation process and a preparation method thereof. The method comprises the following steps: by using natural graphite as a carbon source, and using sodium nitrate, potassium permanganate, sulfuric acid and hydrogen peroxide as oxidizing agents, an improved Hummers method is used to control the adding order and speed of the oxidizing agents, the oxidation time is modulated in mid temperature (35 DEG C), the oxidation stage is removed at a high temperature (98 DEG C and more), the effects that the oxidizing agents are sufficiently contacted with the graphite and the oxidation is sufficient are achieved so as to prepare the uniform flake GO. The GO prepared through the method disclosed by the invention is high in oxidation degree, the size and separation degree of the GO flakes are controllable, the preparation time is short, the requirement to experiment equipment is reduced, and the adaptability thereof is further improved.
Owner:SHAANXI UNIV OF SCI & TECH
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