87results about How to "Reduce interface effects" patented technology

The invention relates the ultrasonic degumming method, comprising adjusting emulsion, hypersonic auxiliary enzymolysis and hypersonic auxiliary hydrating. The method comprises the following steps: after biological enzyme treatment fat, carrying out low water hydrated phase, carrying out ultra-audio wave radiation, and then carrying out water-oil separating. The invention can shorten treatment time and enzyme content, improves the boundary effect between oil and water, reduces biological enzyme density, advances the gelatinous hydrating, improves detaching efficiency, modifies weight of boil-off gum content, and reduces equipment investment and oil consumption, reduces cost.

The invention provides an ion implantation doped HfO2 based preparation process of an HfO2 MIFS ferroelectric gate. The preparation process comprises the steps of firstly, cleaning a P-Si or n-Si substrate by a standard cleaning process to remove particles and other pollutants on a Si surface, afterwards depositing an appropriate thickness of HfO2 on a silicon wafer, and performing annealing; secondly, doping HfO2 by an ion implanter, and annealing the doped HfO2; thirdly, depositing a top electrode on the doped HfO2, namely halfnium oxide ferroelectric thin film, and performing rapid thermal treatment on the electrode; and finally, etching an MFIS multi-layer thin film structure to form an MFIS array unit which is matched with the sizes of a source, a drain and a channel by a reactive ion etching method. By the preparation process, the doping concentration of the HfO2 ferroelectric gate thin film can be accurately controlled, and the preparation process is a mature operation process for preparing the thin film relatively simple to prepare and with lower preparation temperature.

The present invention discloses a lithium ion battery composite separation membrane and a preparation method thereof, and belongs to the technical field of lithium ion batteries, wherein at least a surface of a polyolefin separation membrane is coated with a modified natural rubber polymer coating. According to the invention, the polyolefin separation membrane and the modified natural rubber are combined to form the composite separation membrane, such that mechanical properties of the natural rubber can be improved, and the original pore closing characteristic of the polyolefin separation membrane can be maintained and utilized so as to improve safety of the battery, enhance bonding force between the separation membrane and the positive electrode and bonding force between the separation membrane and the negative electrode, eliminate the interface effect, and improve cycle stability of the battery; and the inorganic nanoparticles are added to the modified natural rubber latex, such that the crystallinity of the polymer can be reduced to a certain extent, the mechanical strength of the separation membrane and the carrier concentration can be increased, the interface compatibility between the separation membrane and the lithium electrode can be effectively improved, and the interface is stable.

The invention relates to a method for manufacturing a bipolar junction transistor, which is compatible with a process for preparing a complementary metal oxide semiconductor (CMOS) transistor. In the method, an emitter is formed in a bipolar junction transistor preparation region while gate polycrystalline silicon is formed in a CMOS transistor preparation region; high doping is generally required to be performed on an extrinsic base region in the bipolar junction transistor so as to form good ohmic contact with an electrode; a self-aligned extrinsic base region is realized by means of self-aligned high-doping ion implantation of the CMOS transistor; and doping ions are implanted and propelled to the emitter, so that the doping ions are uniformly propelled to the base region to form an emitter junction, the thickness of the emitter junction is more uniform, and etching damage is repaired by means of a rapid thermal oxidation process of a CMOS polycrystalline silicon gate after a polycrystalline silicon layer is etched; therefore, the boundary effect is reduced and the leakage current is reduced.

The invention relates to the technical field of super-hard composite materials, particularly to a high-quality polycrystalline diamond compact and a preparation method thereof. According to the invention, the high-quality polycrystalline diamond compact is manufactured by using double-beam 3D printing equipment which performs processing with high-power continuous beams and ultra-fast pulsed laserbeams alternately; and gradual transition layers are formed among layers, so bonding between a matrix and diamond and between the diamond and nickel is firm, and an interlayer interface is free of sudden changes in thermal and mechanical quantities. The polycrystalline diamond compact of the invention comprises, arranged from bottom to top, the matrix, a matrix-diamond gradual transition layer, adiamond layer, a diamond-nickel gradual transition layer, a nickel layer and a cobalt-free binder. The diamond-nickel gradual transition layer improves the heat dissipation performance of the polycrystalline diamond compact, prevents thermal stress corrosion from generating cracks on the surface of the diamond layer, and greatly improves the thermal stability of the polycrystalline diamond compact. Double-beam 3D printing technology used in the invention makes D-D bonding firm and ultra-high hardness to be obtained, so the polycrystalline diamond compact has high heat resistance, wear resistance and impact toughness, and thus has prolonged service life.

The invention relates to the technical field of adhesives, and discloses a graphite-based high-strength heat-conducting epoxy resin adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: bisphenol A type epoxy resin, calcium carbonate, modified graphite, composite glass fibers, 1, 4-butanediol diglycidyl ether, a curing agent polydiphenyl substituted cetane dicarboxylic anhydride, a curing accelerator pyridine and absolute ethyl alcohol. The preparation method comprises the following steps: performing ultrasonic oscillation dispersion onmodified graphite to obtain a graphite suspension; adding bisphenol A epoxy resin, calcium carbonate, composite glass fibers and 1, 4-butanediol diglycidyl ether into the graphite suspension, and uniformly mixing to obtain a premix; and adding polydiphenyl substituted hexadecane dicarboxylic anhydride and pyridine into the premix, pouring into a metal mold, and standing while keeping the temperature, thereby obtaining the graphite-based high-strength heat-conducting epoxy resin adhesive. The adhesive prepared by the method has high mechanical strength and excellent heat-conducting property, and the application range of the epoxy resin adhesive is expanded.

The invention discloses a ternary composite material and a preparation method thereof and a lithium-ion battery. The method comprises the steps of adding a vanadium source to an oxalic acid solution, adding a phosphorus source and a lithium source, adding a ternary material for stirring evenly and then dropwise adding ethylene glycol and ethanediamine for reaction at 150-200 DEG C for 2-4 hours to obtain a precursor; carrying out vacuum drying on the precursor at 80-120 DEG C for 6-10 hours, grinding the precursor evenly and then sintering at 800-860 DEG C for 8-15 hours; and carrying out furnace cooling to obtain NLiNi<x>Co<y>Mn<z>O<2>/(1-N)Li<3>V<2>(PO<4>)<3>/C, wherein x+y+z is equal to 1 and N is smaller than 1 and greater than or equal to 0.5. A coating layer is formed on the surface of the ternary material, so that direct contact of the ternary material and an electrolyte can be blocked and catalytic decomposition of the ternary material on the electrolyte is inhibited. Catalytic reaction of the ternary material on the electrolyte is retarded by the coating layer, instantaneous accumulation of heat is relieved and a dangerous condition of the battery is inhibited.

The invention discloses a method for improving the electric performance of a copper foil collector of a battery cathode. The method is characterized in that a nano-copper film is deposited on the copper foil of the collector of a lithium battery cathode by utilizing a vacuum plasma plating technology, and the copper film surface is subjected to ion source bombardment for improving the adhesion of the lithium battery cathode material with the copper foil of the collector, the interface effect is reduced, and the electric performance of the lithium battery is improved.

The present invention discloses a novel step voltage calculation method based on circular ring-shaped DC power transmission earth electrode different buried depths. The method comprises the followingtwo situations of (1) analyzing the potential distribution that the homogeneous medium circular ring-shaped earth electrodes are not buried at the equal depth to obtain a calculation expression of a step voltage on an earth surface; (2) analyzing the potential distribution that the horizontal dual-layer medium circular ring-shaped earth electrodes are not buried at the equal depth to obtain a calculation expression of the step voltage on the earth surface; utilizing a MALTAB software to simulate to obtain the results and the influence of different earth electrode ring numbers and different buried depths on a surface potential, thereby demonstrating that the method provided by the present invention enables the step voltage to be reduced. The present invention creatively provides the thoughtthat the dual-circular ring-shaped earth electrodes are not buried at the equal depth, the calculation is simple, and the operation speed is fast.

The invention relates to a matting master batch for plastic and a preparation method of the matting master batch, and belongs to the technical field of plastic processing. The matting master batch for plastics comprises the following raw materials: matrix resin, a composite matting agent, a lubricant and a compatibilizer, the composite delustering agent is an inorganic delustering agent (titanium dioxide) of which the surface is grafted with a delustering hyperbranched polymer, and the delustering hyperbranched polymer contains a large amount of light absorption structures of pyridine rings and benzotriazole, so that the reflected light of the master batch is greatly reduced, and the delustering performance of the master batch is improved; thirdly, the dull hyperbranched polymer is grafted on the surface of titanium dioxide, so that the titanium dioxide is promoted to be uniformly dispersed in the master batch base material, and meanwhile, the grafted dull hyperbranched polymer and the master batch base material can generate the action of a polymer molecular chain, so that the migration of the titanium dioxide in the dull master batch base material is reduced; the effect of enhancing the matting performance and the mechanical performance of the matting master batch by the composite matting agent is promoted.

The invention discloses essence for improving skin aging and damage, and belongs to the technical field of skin care product processing. The essence is prepared from the following ingredients including 1, 3-propanediol, glycerol, isononanoate cetearyl stearate, cetostearyl alcohol, ceteareth-20, glyceryl stearate, ceteareth-12, cetyl palmitate, serum protein, acetyl hexapeptide-8, hydrolyzed sodium hyaluronate, glyceryl acrylate/acrylic acid copolymers, propanediol, PVM/MA copolymers, sodium hyaluronate, lactose, milk protein, oligopeptide-1, arginine/lysine polypeptide, polyacrylate cross-linked polymers-6, tert-butyl alcohol, 1, 2-hexanediol, caprylyl glycol, benzoic acid, ethylhexylglycerin, p-hydroxyacetophenone and water. A preparation method of the essence comprises the following steps of (1) raw material weighing; (2) stirring treatment; (3) cold plasma-ultraviolet light circulation alternate treatment; (4) micro jet high-pressure homogenizing treatment; and (5) quality inspection and packaging. The finally prepared essence has the obvious anti-aging effect.

The invention discloses a compound anode material used for a lithium ion battery, a preparation method of the compound anode material, and a lithium ion battery. The preparation method comprises the following steps: according to a situation that the molar ratio of Ni to Co to Mn is equal to X to Y to Z, preparing solution, and carrying out coprecipitation to prepare precursor oxide under an alkaline condition; preparing an Li source and the precursor oxide; after the above materials are evenly mixed, carrying out high-temperature sintering to obtain an Li-rich ternary material; carrying out coprecipitation on a P source and an Fe source to prepare FePO4; preparing the Li-rich ternary material and the FePO4 according to a certain molar ratio, evenly mixing in a solvent, and evenly grinding after drying; sintering the above mixed powder at a high temperature; cooling with a furnace to obtain the compound anode material used for the lithium ion battery. According to a compound system of the ternary material and lithium iron phosphate, a contact interface for material compounding is effectively improved, and the synergistic effect of the compound material is better performed. Meanwhile, side reaction generated by the contact of the ternary material and electrolyte is inhibited, and the safety of the lithium ion battery is greatly improved.

The invention discloses a self-lubricating metal ceramic bearing with high bending resisting strength. The bearing is prepared from raw materials including, by weight, 2.3-2.4 parts of ferric citrate, 3.1-3.5 parts of basic nickel carbonate, 1.1-1.3 parts of cuprous iodide, 25-30 parts of water, a proper amount of ammonium hydroxide, 2.9-3 parts of TiH2, 5-5.6 parts of TiC, 3-4 parts of Mo2C, 3-4 parts of WC, 0.9-1.1 parts of LaB6, 0.6-0.8 part of germanium dioxide, 0.6-0.8 part of nanometer boron fibers, 0.7-0.9 part of a lubricating agent, 1-1.1 parts of C, 8.6-9 parts of W, 6.1-6.3 parts of Mo, 3.1-3.3 parts of V and 65-66 parts of Fe. By means of the Mo2C, the WC, the LaB6, the germanium dioxide and the nanometer boron fibers, the thermal resistance and bending resisting strength of the bearing are improved, the bearing has the characteristics of high hardness, high strength and high tenacity, and cracking is prevented.

The invention relates to the technical field of super-hard composite materials, in particular to a method for prolonging the endurance life of a diamond compact and the diamond compact. The method forprolonging the endurance life of the diamond compact includes the steps: irradiating an interface between a substrate and a diamond layer and the surface of the diamond layer by ultra-fast pulse laser beams; polishing the surface of the diamond layer. The diamond compact is manufactured by the ultra-fast pulse laser beams, a gradient transition layer is generated between layers, so that the substrate and the diamond layer are firmly combined, and sudden change of a thermal quantity and a mechanical quantity on the interlayer interface is avoided. The surface (cold annealing) of the diamond layer is irradiated by the ultra-fast pulse laser beams, thermal stress concentration and lattice defects of the diamond layer can be eliminated, D-D bonds on the surface of the diamond layer can be firmly bonded, cobalt atoms are 'extruded' to the surface of the diamond layer, a rich cobalt layer is removed by polishing, ultra-high surface smoothness is realized, the high-temperature resistance ofthe diamond compact is improved, and the service life of the diamond compact is prolonged.

The invention discloses an iron, lithium and manganese phosphate composite material, a method for preparing the same and a lithium ion battery. The method includes dispersing lithium sources, iron sources, manganese sources and phosphorus sources in deionized water; adding citric acid into the deionized water to obtain sol; stirring the sol to form gel, drying and grinding the gel and then pre-sintering the gel to form LiFe<0.5-x>Mn<0.5+x>PO<4>; adding vanadium sources into oxalic acid solution, then adding phosphorus sources, lithium sources and the LiFe<0.5-x>Mn<0.5+x>PO<4> into the oxalic acid solution, uniformly stirring the vanadium sources, the phosphorus sources, the lithium sources, the LiFe<0.5-x>Mn<0.5+x>PO<4> and the oxalic acid solution to obtain mixtures, dropwise adding ethylene glycol and ethylenediamine into the mixtures and carrying out reaction to obtain precursors; drying the precursors under vacuum conditions, uniformly grinding the precursors and then sintering and cooling the precursors to obtain the iron, lithium and manganese phosphate composite material YLiFe<0.5-x>Mn<0.5+x>PO<4>/(1-Y)Li<3>V<2>(PO<4>)<3>/C. The X is larger than or equal to 0.1 and is smaller than or equal to 0.4, and the Y is larger than or equal to 0.5 and is smaller than 1. The iron, lithium and manganese phosphate composite material, the method and the lithium ion battery have the advantages that dissolution of manganese in the iron, lithium and manganese phosphate composite material can be relieved, and the ionic conductivity and the electronic conductivity can be improved.

The invention provides production and processing equipment and method for high-glossiness draw-textured yarn, and relates to the technical field of spinning. The production and processing equipment for the high-glossiness draw-textured yarn comprises a rack, a mounting plate fixedly connected to the side wall of the rack and a cross beam fixedly connected to the inner side of the rack. According to the production and processing equipment and method for the high-glossiness draw-textured yarn, the refractive index and transmissivity of fiber are ensured through four-leaf spinneret orifices, polymer dissolution caused by nano Ag2O during modification, addition and blending in the later stage can be prevented by using a chemical coprecipitation method, the interfacial effect of solid-liquid reflection is reduced through pulping operation, and the esterification rate in the polymerization process is improved. A pressurized esterification processing technology is adopted, the reaction activity is guaranteed, the reaction rate is increased, air is blown by an air blower to enter an annular blowing channel to cool tows, the air filtered by an air filter box is free of impurities, tow surface pollution is avoided, and meanwhile air pressure is adjusted by an air pressure adjusting box. The problems of many broken filaments and easy end breakage of the tows are greatly reduced.

Ferric citrate and basic nickel carbonate are used for carrying out wrapping modification on TiC, the surface of a ceramic phase is wrapped by iron and nickel, and ceramic particles have magnetism and are prone to being combined with a metal phase. The interracial effect is reduced, the bonding strength between the ceramic phase and the metal phase is improved, and the strength and the tenacity of a bearing are greatly improved. By means of gallium trichloride and cadmium selenide, grain refinement is achieved, the bonding performance between the metal and the ceramic is improved, and tenacity is improved. By means of nanometer tungsten trioxide and zirconium oxide powder, the abrasion resistance and thermal resistance of the bearing are improved, and the bearing does not deform and is not prone to abrasion under the high-temperature condition.

The invention discloses a transparent organic electroluminescent device. The transparent organic electroluminescent device comprises a glass substrate, and a transparent anode, a cavity implantation layer, a cavity transmission layer, a green luminescent layer, an electron transmission layer, an electron injecting layer and a transparent cathode which are successively laminated on the glass substrate. The transparent anode comprises a hydroxysilane organic layer and a metal layer; the material of the hydroxysilane organic layer comes from at least one of (3-mercaptopropyl)trimethoxysilane, (3-mercaptoethyl)trimethoxysilane, (3-mercaptomethyl) trimethoxysilane and O,O,O-trimethyl-mercaptosilane; the material of the metal layer comes from at least one of a magnesium-silver alloy, a lithium-aluminum alloy, barium and calcium; and the material of the transparent cathode is indium tin oxide. According to the transparent organic electroluminescent device provided by the invention, the light emitting efficiency of an anode surface reaches more than 55% of the light emitting efficiency of a cathode surface, and the luminescence performance is excellent. The invention further discloses a preparation method of a transparent organic electroluminescent device.