21results about How to "Low wettability" patented technology

The invention relates to a high-temperature heat dissipation material Ti-6Al-4V and a preparation method, application and a testing device and method thereof, and the method comprises the following steps: ablating a polished and cleaned Ti-6Al-4V material by using a femtosecond laser, and preparing a series of parallel grooves in the surface of the material by using accurate laser parameters, the depth of the grooves being 56 [mu] m, and the distance between the adjacent grooves being 90 [mu] m; performing a vertical evaporation test on the prepared Ti-6Al-4V material at a high temperature to obtain evaporation rates and water film states of the Ti-6Al-4V material at different temperatures; benefited from rich micro-nano structures on the surface of the Ti-6Al-4V material, the Ti-6Al-4V material shows good water absorption and evaporation functions under an extreme high-temperature condition, the test temperature breaks through the 150 DEG C high-temperature limit of the current M-cycle, a gate is opened for higher-temperature M-cycle technology application, and the material has good application prospects. And the heat dissipation requirements of high-temperature scenes such as an industrial cooling system and a nuclear power station are met.

The invention belongs to the technical field of refractory materials, and particularly relates to a dispersion breathable refractory brick and a production process thereof. The dispersion breathable refractory brick is prepared from the following raw materials in parts by mass: 50-60 parts of silicon / titanium coated corundum particles, 30-40 parts of corundum particles, 15-20 parts of alumina micro powder, 8-12 parts of magnesium oxide micro powder, 3-5 parts of activated alumina micro powder, 1-3 parts of niobium pentoxide, 4-8 parts of phenolic resin and 3-5 parts of water. The prepared dispersion breathable refractory brick has the advantages of being high in slag corrosion resistance, good in thermal shock resistance, high in mechanical property and the like.

The invention discloses a silver-based tin oxide electric contact material and a preparation method thereof, and relates to the technical field of electric contact materials. When the silver-based tin oxide electric contact material is prepared, firstly, a high-temperature solid-phase method is used for doping lithium and cerium to prepare doped tin oxide powder; stannic chloride and copper nitrate are prepared into a fiber membrane through electrostatic spinning, meanwhile, titanium dioxide is grown in situ through nano spraying, and doped stannic oxide fibers are prepared after calcination; the doped tin oxide powder, doped tin oxide fibers and silver powder are subjected to high-energy ball milling and powder mixing and then annealed, and silver-based tin oxide composite powder is obtained; the silver-based tin oxide composite powder is subjected to pre-pressing forming and then subjected to vacuum discharge plasma sintering, and the silver-based tin oxide electric contact material is prepared. The prepared silver-based tin oxide electric contact material has the advantages of being low in resistivity, high in fusion welding resistance, good in arc erosion resistance and easy to machine and shape.

The invention provides a hafnium oxide etching solution. The etching solution comprises the following components in percentage by weight: 78-94% of dihydric alcohol, 5-20% of alcohol ether, 0.5-1.5% of hydrofluoric acid and 0.05-0.15% of an inhibitor. According to the hafnium oxide etching solution, the etching selection ratio of hafnium oxide (HfO2) to indium gallium zinc oxide (IGZO) is 1: 1, and good etching uniformity is achieved.

The invention relates to the technical field of oil and gas well reservoir transformation, and provides a permeability-enhancing surfactant for shale gas fracturing and a preparation method thereof, and the permeability-enhancing surfactant is synthesized from 3, 4-difluoromaleic anhydride, alkyl polyoxyethylene polyoxypropylene alcohol and sodium isethionate. According to the permeability-enhancing surfactant for shale gas fracturing, fluorine atoms in aliphatic fluoride enable the permeability-enhancing surfactant to have very good low surface tension and wettability, and meanwhile, epoxy groups are introduced into gemini surfactant molecules, so that the wetting effect can be improved, and the permeability-enhancing surfactant is environmentally friendly. Therefore, aiming at the characteristics of a shale reservoir, from the aspects of excellent surface performance, cost reduction, environmental friendliness and the like, the permeability-enhancing surfactant for shale gas fracturing, provided by the invention, has a relatively good practical application value.

The invention belongs to the field of metal-based composite materials, and relates to a micro-nano particle reinforced metal-based composite material and a preparation method thereof. Comprising the following steps: mixing micro-nano reinforced particles and salt particles in proportion, heating to melt the salt particles, and ultrasonically stirring to obtain molten salt-micro-nano turbid liquid; smelting a metal matrix to obtain a metal melt, adding the molten salt-micro-nano suspension into the metal melt, stirring to obtain a mixture melt, and preserving heat; stopping stirring, allowing the mixture melt to stand, allowing the micro-nano reinforced particles to enter the metal melt from the molten salt to form an alloy melt, and keeping the temperature until the molten salt and the alloy melt are layered; and casting the alloy melt and the molten salt together, cooling, and stripping the salt body to obtain the micro-nano particle reinforced metal matrix composite material. According to the preparation method, the metal-based composite material with uniformly dispersed micro-nano particles is obtained by optimizing the preparation process, meanwhile, the preparation difficulty and the preparation cost are reduced, and a solution with application potential is provided for industrial production of the metal-based composite material.

The present application relates to the technical field of lithium battery production, and particularly relates to a high-energy-efficiency carbon kiln and a preparation method thereof. The high-energy-efficiency carbon kiln is prepared from carbon coarse aggregate, carbon fine aggregate, carbon fine powder, a conditioning additive and a water-soluble binding agent through high-temperature carbonization. The microstructure controllable crucible matrix is prepared by using different particle gradations, the carbon kiln blank strength is improved by using modified resin and industrial syrup as the composite binding agent, the damage rate is reduced, a three-dimensional network structure is formed in the interior of the kiln during the baking process to coat the aggregate, fill the pores and enhance the corrosion resistance of the carbon kiln. The modified resin has good affinity with the conditioning agent on the carbon chain, and the Fe2AlB2 fiber with excellent damage tolerance is generated in-situ while the zirconium boride, aluminum powder, iron powder and boron gangue are enriched. The coupling effect of the modified resin skeleton and the Fe2AlB2 whisker further improves the toughness and thermal shock stability of the product, and increases the service life.

The invention relates to the field of ultraviolet curing coatings, in particular to a plastic matte ultraviolet curing coating and a preparation method thereof.The plastic matte ultraviolet curing coating is prepared from, by weight, 30-40 parts of acrylic resin, 15-30 parts of bifunctional monomers, 30-45 parts of trifunctional monomers, 5-10 parts of modifier, 1-5 parts of active amine, 3-6 parts of initiator and 1-3 parts of auxiliaries; the structural formula of the modifier is as follows: # imgabs0 #. A coating film formed after the coating prepared by the invention is subjected to ultraviolet curing has good mechanical properties and strong adhesive force with a plastic matrix.

The invention relates to an electrolyte, an electrochemical device and electronic equipment. The electrolyte comprises an electrolyte additive, the electrolyte additive comprises a halogenated quinoline compound, the electrolyte additive and the positive pole piece meet the following relation: 0.03 < = Ya / (L * M * N) < = 2.8, the mass percent of the electrolyte additive in the electrolyte is Ya%, the total number of the positive active material layers is L, and the sum of the mass percent of the electrolyte additive in the positive active material layers is 100%. The mass of the positive electrode active material layer in unit area on the positive electrode plate is M g / cm < 2 >, and the compaction density of the positive electrode active material layer is N g / cm < 3 >. According to the scheme provided by the invention, the halogenated quinoline compound can be used as the electrolyte additive, and the relationship between the electrolyte additive and the positive electrode active material layer is regulated and controlled, so that the electrolyte can form a stable protective film on the positive electrode and the negative electrode, and the normal-temperature and high-temperature performance of the battery is improved on the premise of ensuring the energy density of the battery.

The present invention provides a wear-resistant and stain-resistant UHPC white decorative board, a composition and a preparation method; the composition of the wear-resistant and stain-resistant UHPC white decorative board includes, by mass, 89-91 parts of white silicate cement, 8-15 parts of silane-modified white auxiliary cementitious material, 0.5-1.0 parts of organic silicon hydrophobic agent, 100-120 parts of stearic acid-modified white dolomite aggregate, 2.5-4 parts of liquid water reducer, 0.20-0.30 parts of liquid defoamer, 0.10-0.30 parts of anti-cracking fiber, and 18-22 parts of water. The UHPC white decorative board in the present invention has ultra-high performance, and it not only has good appearance quality, but also has excellent characteristics such as high strength and toughness, high density and high wear resistance, strong hydrophobicity and strong stain resistance.

The invention provides a drill pipe joint wear-resistant belt flux-cored welding wire, which belongs to the technical field of welding materials. The flux-cored powder of the invention comprises the following components in percentage by mass: 20-30% of ferrotitanium, 47-57% of chromium carbide, 4-12% of ferromolybdenum, 4-10% of manganese, 4-10% of ferrosilicon, 2-8% of graphite, 2-8% of ferrovanadium, 1-6% of sodium fluoride, and the balance is iron powder. The raw materials of the flux-cored welding wire include the flux-cored powder. The surfacing alloy obtained by arc surfacing of the flux-cored welding wire provided by the invention not only has good surfacing processability, beautiful weld formation, and a small number of surface pores, but also has high hardness, high wear resistance and good friction reduction, reducing the wear of the wear-resistant belt on the casing.

The invention discloses a battery diaphragm, a winding type battery cell and a secondary battery, a coating is added in the battery diaphragm, and when the contact angle of the coating and a colloidal particle layer is 30-90 degrees, the wettability of the colloidal particle layer and the coating is relatively low, and the coating can play a role in dispersing glue, so that colloidal particles in the colloidal particle layer are prevented from being infiltrated in the coating; when the battery diaphragm is applied to the winding type battery cell, the negative plate can be prevented from wrinkling on the large surface of the winding type battery cell, so that the performance and the safety of the winding type battery cell and even a secondary battery can be improved.

The invention provides a preparation method of a resin composition, the resin composition and application of the resin composition. The preparation method of the resin composition comprises the following steps: S1, uniformly stirring 10-60 parts by weight of a cyanate ester compound, 10-80 parts by weight of epoxy resin, 5-60 parts by weight of active ester and 10-200 parts by weight of an organic solvent to obtain a resin glue solution; s2, firstly adding 5-100 parts by weight of nitrogen inorganic matters or dispersion liquid thereof into the resin glue solution, and uniformly stirring; s3, adding 30-100 parts by weight of titanate inorganic matter or dispersion liquid of the titanate inorganic matter, and uniformly stirring to obtain a resin composition; wherein the nitrogen inorganic matter is selected from at least one of aluminum nitride, boron nitride or silicon nitride; the titanate inorganic matter is selected from at least one of calcium titanate, strontium titanate, barium titanate, lead titanate, magnesium titanate, lead zirconate titanate and lead lanthanum zirconate titanate; and a cured product with high heat resistance, high thermal conductivity, high dielectric constant and low dielectric loss is obtained.

The application discloses a kind of ZIF-8 nanoparticle loaded cellulose barrier membrane and preparation method thereof, comprising the following steps: (1) TOCNF suspension gel is diluted into TOCNF suspension by deionized water, to obtain nanocellulose suspension solution A;(2) zinc nitrate hexahydrate is added in solution A to obtain solution B;(3) polyvinylpyrrolidone is added in solution B to obtain solution C;(4) 2-methylimidazole is added in solution C to obtain solution D;(5) solution D is placed in mold by vacuum filtration device to form a wet film, the wet film is removed, and the wet film is clamped between two pieces of acrylic plate, dried in vacuum drying oven, to obtain ZIF-8 nanoparticle loaded cellulose barrier membrane.The application selects TOCNF as the template for ZIF-8 growth, TOCNF as the template for ZIF-8 in-situ growth, which can effectively prevent them from forming aggregates, and load ZIF-8 nanoparticles through in-situ + non-in-situ method to improve the hydrophobicity, thermal stability and ultraviolet shielding property of TOCNF membrane.

This invention provides a roll-over monitoring and control system and method for rolled glass rollers, relating to the field of glass manufacturing technology. It includes: multiple temperature monitoring devices arranged along the length of the rolled glass rollers for real-time monitoring of the surface temperature of various areas on the rollers; and a controller that, when any surface temperature exceeds a first preset threshold, controls the roller motor to slow down, increases the cooling water flow of the roller liquid cooling device, and activates the purging device, while simultaneously issuing a roll-over alarm to on-site personnel to remind them to conduct on-site inspections and manual intervention. The beneficial effect is that the handling procedure is initiated at the nascent stage of the roll-over phenomenon, accurately controlling the "golden 5-second" window for fault handling, reserving crucial time for on-site personnel to arrive and implement subsequent manual intervention, thus suppressing the rapid spread and expansion of the roll-over defect from the source, and completely breaking the passive predicament of traditional handling schemes where the fault has already developed to a moderate stage by the time it is discovered.

The application relates to the technical field of building materials, in particular to a core material for A-grade fireproof metal composite board and a preparation method thereof. According to weight parts, the core material for the A-grade fireproof metal composite board comprises the following raw materials: 30-60 parts of base resin, 20-40 parts of flame retardant, 5-10 parts of modified montmorillonite, 0.5-2 parts of coupling agent, 0.5-3 parts of dispersant, 1-3 parts of compatibility agent and 0.5-3 parts of lubricant. The core material has excellent flame retardancy, antibacterial property and mechanical property.

The utility model discloses a kind of coating die and coating device, belong to battery processing equipment field, the coating die includes upper die and lower die, upper die and lower die between being equipped with the cavity for slurry flow, further include ultrasonic wave subassembly, one end of ultrasonic wave subassembly is located in cavity, the surface of cavity is sprayed with super-hydrophobic coating, for preventing slurry adhesion in cavity. The present application not only can avoid the particle in slurry adhesion in cavity, but also can prevent the particle in slurry from settling under the action of gravity, to reduce the risk of plugging.

The invention discloses a preparation method of bacillus licheniformis modified steel slag and application of the bacillus licheniformis modified steel slag in preparation of recycled concrete, and the preparation method is characterized by comprising the following steps: soaking steel slag in a stearic acid solution, stirring, performing vacuum drying, continuously soaking the steel slag in a silane coupling agent solution, stirring, and performing vacuum drying to obtain the modified steel slag, and dipping the modified steel slag in the bacillus licheniformis suspension, taking out the modified steel slag, vacuumizing for adsorption, dipping the modified steel slag in the bacillus licheniformis suspension, taking out the modified steel slag, and drying the modified steel slag to constant weight to obtain the bacillus licheniformis modified steel slag. The recycled concrete is prepared by mixing the bacillus licheniformis modified steel slag, cement, sand, water, recycled aggregate, the bacillus licheniformis modified steel slag, calcium acetate, aluminum oxide and urea in proportion, and has the advantages that the volume expansion of the steel slag is inhibited, the pore volume of the recycled concrete is remarkably reduced, the pore structure is improved, and the strength of the recycled concrete is improved. The compactness, the compression resistance and the tensile strength of the recycled concrete are improved.

The present application provides a method for preparing an optical cable and an anti-corrosion coating for an immersion liquid-cooled data center, wherein the optical cable comprises a core layer, an optical fiber is arranged in the core layer, an anti-corrosion coating is arranged on the outer surface of the core layer, the outer surface of the anti-corrosion coating also comprises a cladding layer, the anti-corrosion coating contains a fluorine-silicon modified hollow SiO2 material, the fluorine-silicon modified hollow SiO2 material comprises a first hollow SiO2 material and a second hollow SiO2 material, the first hollow SiO2 material has an average particle size of 20nm~50nm, and the second hollow SiO2 material has an average particle size of 200nm~300nm, which can effectively block external corrosive substances such as organic molecules and water vapor from entering the interior of the optical cable, thereby reducing the risk of corrosion damage to the optical fiber inside the optical cable, and improving the service life of the optical cable in the application scenario of the immersion liquid-cooled data center.

The application discloses a target material binding combination promoting method and belongs to the technical field of target materials. The target material binding combination promoting method comprises the following steps: (1) taking a stainless steel pipe as an inner lining pipe, cleaning the inner lining pipe, and performing sand blasting treatment on the stainless steel pipe to form a sand blasting layer; (2) spraying alloy wires onto the sand blasting layer by adopting an electric arc spraying method to form an alloy layer; (3) performing plasma treatment on the stainless steel pipe; and (4) heating the stainless steel pipe, coating solder on the alloy layer to form a solder layer, and performing ultrasonic treatment. The sand blasting layer, the alloy layer and the solder layer are formed on the stainless steel pipe, and the plasma treatment and the ultrasonic treatment are performed on the stainless steel pipe, so that the binding between the inner lining pipe and the target material base body is effectively improved, and the binding combination rate of the target material is effectively improved.

The present invention relates to the field of lithium battery production technology, and more particularly to an energy-saving and long-life carbon crucible and a preparation method. The energy-saving and long-life carbon crucible is made by high-temperature carbonization of the following raw materials in parts by weight: 10-50 parts of carbon coarse aggregate, 20-35 parts of carbon fine aggregate, 15-40 parts of carbon fine powder, 0.01-3 parts of a tempering additive, and 3-25 parts of a water-soluble binder; the conditioning additive comprises aluminum powder, vanadium powder, vanadium carbide, and benzopyrene. A composite binder and the conditioning additive are mixed with the carbon. During the calcination process, a three-dimensional network structure of C-V2AlC is formed inside the crucible, enhancing corrosion resistance. The coupling effect of in-situ generated carbon fibers and the highly damage-tolerant V2AlC further improves the toughness and thermal shock stability of the product, extending its service life. The tempering additive promotes graphitization of the carbon crucible, improving its high-temperature stability while reducing wettability with the contents, thereby saving energy and reducing emissions and lowering production costs.