335results about How to "Fully moistened" patented technology

A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.

The invention discloses an electromagnetic current coupling field assisted hybrid melting-brazing method for a laser-TIG arc and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of plasma formed through ionization of laser, arc and a raw material metal, thereby improving the laser utilization rate. Under the electric field assisted comprehensive effect, the weld melting depth is increased, and the assistant effect on the melting bath of the liquid-state brazing filler metal for laser-arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, stabilizing the welding process, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention discloses a lithium ion battery, cathode slurry and a preparation method. The method comprises the following steps: (1) a cathode active substance and a cathode conductive agent are mixed in a stirrer, and then a lubricant is added for uniformly stirring; (2) an additive sodium carboxymethylcellulose CMC is added in the stirrer for stirring; (3) the substance in the stirrer is added in a mixed sizing material which is composed of cathode solvent water and cathode binder, uniformly mixed and stirred to prepare the cathode slurry. The lubricant is alcohol, ketone, or a mixture of alcohol and ketone. The invention employs a combination of a wetting agent, graphite and the conductive agent, thereby the wetting time can be effectively shortened, the preparation time of the slurry is shortened, and the uniformity and stability of the cathode slurry are enhanced.

The invention provides an AlN ceramic bonded copper substrate which comprises an AlN ceramic substrate and copper foil bonded and connected onto the AlN ceramic substrate and is characterized in that a spinel structure compound modification layer is formed between the AlN ceramic substrate and the copper foil and comprises one or two of CuAlO2, CuAl2O4, Cu2O and CuO. The invention further provides a preparation method of the AlN ceramic bonded copper substrate. The method comprises the steps of spraying nano Cu2O on the surface of the AlN substrate, sintering in inert gas with a micro oxygen content and air sequentially, and then removing a surface oxide by a pickling manner. The prepared modification layer is tightly combined with matrix ceramic, and also has good affinity characteristic with the Cu foil. A uniform oxidation layer can be formed on the surface of the Cu foil by putting the Cu foil in a prepared solution at a certain temperature for specified time and more facilitates an AlN-DBC (direct bonded copper) technology.

The invention discloses a carbon fiber sizing agent which is prepared from the following materials in parts by weight: 5-25 parts of phenolic resin, 1-5 parts of blend resin, 0.01-5 parts of antistatic agent and 100 parts of solvent, wherein the phenolic resin is thermoplastic phenolic resin or modified phenolic resin, and the blend resin is thermoplastic resin or thermosetting resin. The carbon fiber sizing agent is prepared through the following steps of: firstly, uniformly mixing the phenolic resin and the blend resin, adding a solvent accounting for 10-20% of the total amount of the solvent, enabling the resin to be dissolved in the solvent, and stirring the obtained mixture into a homogeneous solution at room temperature; and then, adding the antistatic agent into the homogeneous solution, stirring the obtained mixture so as to dissolve the antistatic agent, adding the rest of the solvent, and mixing the obtained product so as to obtain an integral solution, thereby obtaining the carbon fiber sizing agent. The carbon fiber sizing agent disclosed by the invention can be compatible with thermoplastic matrix resin better; the matrix resin can fully wet carbon fibers, thereby directly achieving a stress transfer effect on the fibers and the matrix; and compared with an epoxy resin sizing agent, the interlayer shear strength of a composite material of the carbon fiber sizing agent is increased by 15-20%.

The invention provides a method for preparing a positive material of a high-power lithium ion battery. The positive material is LiNixCo1-x-yMnyO2 (0<=x, y<=1, and x+y<=1). The method comprises the following steps: choosing a 0.1-10mu m template ball body, performing emulsification dispersing on the template ball body, adding metal salt solution, then adding precipitator, enabling metal ions to evenly deposit on the surface of the template ball body under the effect of the precipitator, performing hot filtering on the template ball body with the metal ions deposited on the surface to obtain an organic-inorganic compound core shell structure material, and performing thermal treatment to obtain the hollow positive material by evenly mixing the organic-inorganic compound core shell structure material with the lithium salt, wherein the metal salt is metal salt of Ni, Co and Mn. The obtained ternary material has regular hollow spherical shape, is even in grain size and grain fineness distribution, can improve the absorbing/releasing capability on non-water electrolyte of active substances, effectively shortens embedding and de-embedding of the lithium ions, accordingly enhances the storage/transmission performance of the lithium ion battery, and provides effective support for large-current high-magnification charging and discharging, and the compounded ternary material can be applied to power battery materials.

The invention relates to a membrane electrode of a fuel cell, which comprises an anode gas diffusing layer, an anode catalyzing layer, a proton exchange membrane, a cathode catalyzing layer, and a cathode gas diffusing layer. The gas diffusing layers comprise a conductive carrier as well as a conductive agent and a binding agent carried by the conductive carrier, wherein the binding agent in the anode gas diffusing layer is a hydrophilic binding agent. The membrane electrode of the fuel cell provided by the invention has good effect of self-humidifying. When the fuel cell manufactured by adopting the membrane electrode in the invention works in a large current density, the output power of the cell is high.

The invention discloses an electromagnetic excited TIG arc melting-brazing hybrid welding method and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of a welding arc, and the assistant effect on the melting bath of the liquid-state brazing filler metal for arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.

The invention discloses a dyeing and finishing process for a polyester blended fiber fabric. The process comprises the following steps of 1, pretreatment, wherein the polyester blended fiber fabric is sequentially subjected to scouring, bleaching and enzyme washing; 2, mercerizing and sizing, wherein the fabric is subjected to padding of alkali liquor under the room temperature for pre-sizing; 3, dyeing, wherein the fabric is soaked into dye liquor formed by disperse dyes, dyeing is performed under the temperature of 30-40 DEG C, temperature is increased to 90-110 DEG C at the heating rate being 0.8-1 DEG C/min, washing is performed through warm water, infrared ray pre-heating is performed, and then hot-blast air drying is performed; padding is performed again under the room temperature to reduce the suspended solid dye liquor formed by dyes, a reduction solution is subjected to padding, steam reduction and oxidation are performed, washing is performed through warm water, soaping is performed, and then washing and drying are performed; 4, after-treatment, wherein soft and flame-proof treatment is performed in sequence. According to the dyeing and finishing process for the polyester blended fiber fabric, the touch feeling, elasticity and other properties of the fabric are improved remarkably, dyeing is uniform, the color fastness is high, and the color is full.

The invention discloses a method for preparing a supercapacitor electrode material basic nickel-cobalt carbonate through a hydrothermal method. The method comprises the following steps that metal nickel salt and/or metal cobalt salt and urea are weighed separately and mixed with deionized water, and stirring is performed so that solids can be dissolved to obtain a mixed solution; the mixed solution is poured into a high-pressure reactor, sealing is performed for performing a reaction for 10-16 h under the temperature of 80-110 DEG C, and a reaction product is obtained; the reaction product is separated, washed and dried to obtain basic nickel-cobalt carbonate. According to the method for preparing the supercapacitor electrode material basic nickel-cobalt carbonate through the hydrothermal method, on the basis of control over raw material compatibility and reaction conditions, the three-dimensional porous structure and morphology can be obtained, sufficient wetting and permeation of an electrolyte are promoted, the superficial area of active substances is sufficiently utilized, and the electrochemical performance is improved.

The invention discloses a sapphire wafer polishing solution which consists of the following components in percentage by weight: 20 to 30 percent of silica sol with solid content of 30 to 40 weight percent, 10 to 20 percent of alumina with a diameter of 80 to 200nm, 0.1 to 0.4 percent of organic base, 0.1 to 3 percent of a dispersing agent, 0.3 to 1 percent of nonylphenol polyethylene ether and the balance of de-ionized water. According to the sapphire wafer polishing solution, the silica sol and the alumina are compounded, so that the polishing speed is ensured, and machining scratches are avoided; furthermore, the nonylphenol polyethylene ether, the dispersing agent and the like are added to form a stable colloidal dispersion system to promote the full wetting of a polished wafer and a polishing pad and the stable and uniform distribution of the polishing solution between the polishing pad and the polishing wafer, so that the reaction rate of each part of the surface of the wafer can be balanced, and the polishing quality is ensured and improved; the sapphire wafer polishing solution can be used for the machining of a sapphire wafer.

The invention discloses a surface metallization joint method of ceramic and aluminum or an aluminum alloy, comprising the following steps of: (1) forming a liquid film of an aluminum alloy 1 on a joint surface of the ceramic to obtain the ceramic of which the joint surface is coated with the liquid film of the aluminum alloy 1; and (2) placing the pure aluminum or aluminum alloy 2 on the joint surface of the ceramic of which the joint surface is coated with the liquid film of the aluminum alloy 1, and soldering the ceramic, of which the joint surface is coated with the liquid film of the aluminum alloy 1, with the pure aluminum or an aluminum alloy 2 by taking the liquid film of the aluminum alloy 1 as soldering flux. With the method, an interface formed between the aluminum or the aluminum alloy film and the ceramic is prevented from the inclusion of an oxide from the aluminum surface oxidation film and is very firm and difficult to fall off, the joint strength of the interface between the aluminum or the aluminum alloy and the ceramic is proved to be very firm and exceed the strength of the aluminum per se according to the 90-degree tear strength experiment, and no defects exit on the interface, therefore, the method is suitable for the requirements of industrial production. Therefore, the method has a wide application range in the field of the joint of the ceramic and the aluminum or the aluminum alloy.

The invention discloses a dyeing and finishing process for polyester interweaved fabric. The dyeing and finishing process comprises the following steps: S1) pre-treating: performing scouring and bleaching and enzyme washing treatment on the polyester interweaved fabric in turn; S2) pre-shaping: performing pre-shaping treatment on the polyester interweaved fabric; S3) dyeing: soaking the polyester interweaved fabric into a dye liquor at a liquor ratio of 1:(10-30), wherein the dye liquor comprises 1-3% of reactive dyes, 2-5% of rare-earth complex micro-encapsulation disperse dyes, 5-15g/L anhydrous sodium sulphate, 1.5-3.5g/L pH buffering agent, 0.1-0.3g/L organic phenol halide and 0.01-0.05g/L organic fluorinated surfactant; and S4) finishing: performing softening and flame-proof treatment on the fabric in turn. The dyeing and finishing process for polyester interweaved fabric, disclosed by the invention, not only can obviously improve the performances, such as, hand feel and elasticity, of the fabric but also can achieve the effects of uniform dyeing, high color fastness and abundant color and luster.

An electrolyte composition includes (a) a solvent composition including at least one hydrofluoroether compound, the hydrofluoroether compound including two terminal fluoroalkyl groups and an intervening substituted or unsubstituted oxymethylene group, each of the fluoroalkyl groups including only one hydrogen atom and, optionally, at least one catenated (that is, in-chain) heteroatom, with the proviso that, when the oxymethylene group is unsubstituted, at least one of the terminal fluoroalkyl groups is branched and/or includes at least one catenated heteroatom; and (b) at least one electrolyte salt.

Provided are a hard coating composition and a hardened membrane containing the same. The hard coating composition comprises, by weight, 30 to 80 parts of hydroxyl-containing acrylate monomers, 1 to 10 parts of an photoinitiator, 20 to 70 parts of a solvent and 0.1 part to 5 parts of a reactive organosilicon surface wetting auxiliary agent, wherein, the hydroxyl-containing acrylate monomers are a mixture of hydroxyl-containing multi-functional acrylate monomers and hydroxyl-containing low functional acrylate monomers mixed according to a weight ratio of 2:8 to 8:2. The composition provided in the invention has excellent adhesion to a PET substrate surface which is never treated and a PET substrate surface which has corona or a failure coating bottom; hardness of the hardened layer of the obtained hardened membrane is greater than 1H, and therefore, the hardened membrane can be used as a hardened membrane of an indium tin oxide (ITO) touch screen, an in-mold label (IML), or the like.

This invention relates to a method for activating the membrance electrode of fuel cell. The procedures comprise: the positive pole fuel and negative pole fuel are fed into positive pole chamber and negative pole chamber respectively, thus makes the cell discharging, which is multi-stage discharging, including at least one time-interval between the stages, and the discharging being under constant voltage. This invention method makes the activating operation being fulfilled in a short period, and gives higher outpul power.

The invention discloses an antibacterial wear-resistant color masterbatch. The color masterbatch comprises the following components: 50 to 80 parts of polyvinyl chloride, 6 to 10 parts of a calcium zinc heat stabilizer, 20 to 30 parts of filler calcium carbonate, 20 to 30 parts of chlorinated polyethylene, 2 to 5 parts of a colorant, 1 to 3 parts of a lubricant, 1 to 2 parts of antioxidant phosphite ester, 1 to 2 parts of polyethylene wax, 20 to 30 parts of an environment-friendly plasticizer, 1 to 2 part of an ultraviolet absorber, 15 to 20 parts of an antibacterial agent, and 5 to 10 parts of a wear-resistant agent. A preparation method of the antibacterial wear-resistant color masterbatch comprises the following steps: (1), adding the polyvinyl chloride and the chlorinated polyethyleneinto a high-speed mixer according to certain mass parts, so as to perform high-speed mixing; (2), reducing the temperature to room temperature after the plasticizer is sufficiently absorbed by the polyvinyl chloride and the chlorinated polyethylene; (3), adding the blended materials into a double-screw extruder. The formed antibacterial wear-resistant color masterbatch can improve the antibacterial and wear-resistant effect of a polyvinyl chloride product, and has the advantages of stable performance, high coloring power, good dispersibility, high safety in use, high environmental protection property and high nontoxicity.

The invention relates to a ceramic tile blank and a preparation method. CMC (Carboxymethylcellulose), PVA (Polyvinyl Acetate), sodium polyacrylate and sodium alginate of which the mass ratio is (2 to 3):(0.5 to 0.8):(15 to 20):(0.01 to 0.03) are mixed, and then water is added, so as to obtain a body enhancer solution of which the mass fraction is 5 to 8%; hard materials and soft materials are uniformly mixed to be added to a granulator, the body enhancer solution is added to the granulator, powder granulated by the granulator is dried until the moisture content is 5 to 8%, and then screening is performed, so as to obtain the ceramic tile blank. All components of the ceramic tile blank are suitable for a dry pulverizing process, compared with a general dry granulating technique, the ceramic tile blank has the advantages of stable quality and good granule fluidity, after a ceramic tile sample is fired, the average breaking strength reaches 38 to 55 MPa, and the water absorption is less than or equal to 0.5%.

This invention discloses a method for producing attapulgite gel used in paint thickening agent, comprising: first, soak the attapulgite ore concentrate with water and additive for 5-7d, wherein the additive MgO is 2-4% of the ore concentrate weight, and the ratio of the ore concentrate and water is 1:9; then roll the mixture at pressure of 50-70 kilogram/cm2 to be wet material with 40-55% water content, soak the wet material for another 2-3 days, and continuously roll 2-3 more times to obtain the finished wet material; second, filtrate the wet material, and dry it at below 120Deg C to obtain the dry material with 8-12% water content; finally, grind the dry material to 500 order to obtain the attapulgite gel. This invented attapulgite thickening agent used in water paint and solvent paint is characterized of high viscosity coefficient and thixotropy index, thorough dispersion, and no agglomeration.

The invention discloses washing equipment and a washing method thereof. The washing equipment comprises a washing body, a washing barrel component and a spraying device, wherein the washing barrel component is arranged in the washing body; the spraying device is arranged on at least one of the washing body and the washing barrel component; the spraying device is positioned at the upper part of the washing barrel component and used for pumping the liquid in the washing barrel component and spraying the liquid towards to-be-washed objects in the washing barrel component. According to the washing equipment, the spraying device is arranged on the upper part of the washing barrel component, and the spraying area of the spraying device is enlarged, so that the to-be-washed objects can be fully wetted, the usage amount of the washing water can be reduced, and the energy conservation and environmental friendliness are achieved.

The invention provides a polyamide reverse osmosis membrane and a preparation method thereof. The membrane comprises a porous support membrane and a carbon quantum dot-containing polyamide layer growing on the surface of the porous support membrane, and the carbon quantum dot-containing polyamide layer comprises the following raw material components: aminated carbon quantum dots, an oil-phase reaction monomer, an oil-phase solvent, an acid acceptor, a pH regulator and a surfactant; the preparation method comprises the following steps: 1, preparing aminated carbon quantum dots; and 2, preparingthe polyamide reverse osmosis membrane. According to the polyamide reverse osmosis membrane disclosed by the invention, the aminated carbon quantum dots are used as a novel water-phase reaction monomer, and a polyamide layer structure containing the carbon quantum dots is formed on the polysulfone porous support membrane by directly carrying out a cross-linking reaction on amino groups on the aminated carbon quantum dots and trimesoyl chloride, so that the water flux can be improved from multiple aspects.

The invention discloses a repairing material for ancient building black brick wall cracks and a construction process, and belongs to the field of ancient building repairing. Quicklime, slaked lime, black brick ash, quartz sand, 107 building glue powder, hydroxypropyl methyl cellulose, starch ether, a water reducing agent and an antifoaming agent are fully mixed according to a mass ratio, and thenprepared silicone acrylic emulsion modified glutinous rice slurry is added and fully stirred to obtain the product. The repairing material meets the requirements of cultural relic protection and repair, has good flowability, is beneficial to grouting operation and full filling of gaps, and has good compressive strength and bonding strength, good toughness, small shrinkage rate, good water resistance and strong ageing resistance after being cured. The repairing material has good adhesive force with black bricks, the appearance color is close to that of a black brick wall, the repairing materialhas good compatibility with the black brick wall, the cost is low, and the economic practicability is high. The repair material construction process is elaborated in detail, construction is convenient and fast, and the rework period can be effectively shortened.

The invention discloses a method for preparing an iron-based titanium carbide metal ceramic with high ceramic content through sintering. The component formulation comprises 45-80 % of TiC and 20-55 % of iron-based binder phase in percentage by weight, wherein the optimal components of the iron-based binder phase are 65-80% of Fe (Ferrum), 1-5 % of Mo (Molybdenum), 2-10 % of Ni (Nickel), 0-10 % ofMn (Manganese), 10-22 % of Cr (Chromium), 0-2.5 % of Ti (Titanium) and 0-2.5 % of Si (Silicon) in percentage by weight. The method comprises the following steps of: after uniformly mixing the powder prepared according to the formulation, pressing the powder into a 10*10*2 cm blank; and then putting the blank into a vacuum furnace and vacuumizing the furnace; next, heating up to 200 DEG C at a speed of 10 DEG C/min; preserving the heat for 10 minutes; and then heating up to 400 DEG C at a speed of 10 DEG C/min; preserving the heat for 10 minutes again; heating up at a speed of 10 DEG C/min in the same way; preserving the heat for 10 minutes every 200 DEG C until the sintering temperature is 1450 DEG C; and after sintering the blank for 4 hours, cooling the blank along with the furnace to the room temperature. According to the invention, the wettability between the iron-based binder phase and the titanium carbide ceramic phase can be largely improved so that the iron-based binder phase and the titanium carbide ceramic can be sufficiently wetted while being sintered at high temperature, thus the completely compact iron-based metal ceramic can be obtained.