Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

438 results about "Titanium carbide" patented technology

Titanium carbide, TiC, is an extremely hard (Mohs 9–9.5) refractory ceramic material, similar to tungsten carbide. It has the appearance of black powder with the sodium chloride (face-centered cubic) crystal structure. As found in nature its crystals range in size from 0.1 to 0.3mm.

High-temperature-impact-resistant flux-cored wire and preparation method thereof

The invention relates to the technical field of flux-cored wires. The preparation method comprises the following steps: weighing the following raw materials in parts by weight: 4-6 parts of chromium carbide powder, 7-9 parts of molybdenum powder, 6-8 parts of nickel powder, 10-15 parts of niobium powder, 15-18 parts of tungsten carbide powder, 7-11 parts of a modified titanium carbide agent, 5-8 parts of a blending agent added based on boron and 2-4 parts of 30-mesh natural graphite; 1-2 parts of sodium fluosilicate; 1-2 parts of aluminum powder; and 70-75 parts of iron powder. The flux-cored wire can adapt to complex service environments of parts such as rollers and continuous casting crystallizers in the metallurgical industry, the service life of the parts subjected to surfacing repair is prolonged, the production efficiency of the parts subjected to surfacing repair is improved, the obtained flux-cored wire achieves balance of high-temperature performance, mechanical performance and low-temperature stability, and the comprehensive applicability of products is improved.
Owner:SHENGYANG HAWEIER SURFACE ENG TECH

An Al-Ti-C-Ce master alloy using titanium carbide as both Ti and C sources, its preparation method, and its applications.

ActiveCN120464898BAl powderGraphite
This invention discloses an Al-Ti-C-Ce master alloy using titanium carbide as both Ti and C sources, its preparation method, and its application. Titanium carbide powder is mixed with aluminum powder and ball-milled to obtain an Al-coated TiC core-shell composite powder. The core-shell composite powder is pressed into preforms. These preforms are then pressed into the bottom of molten aluminum in batches using graphite bell jars. The mixture is first held at 760-850℃, then cooled to 700-750℃. An Al-30Ce master alloy is then added, followed by a second holding period. The mixture is then slag-removed and refined, and finally cast into a mold to obtain the Al-Ti-C-Ce master alloy. The Al-Ti-C-Ce master alloy provided by this invention refines the grain size of A356 alloy to 106 μm (ASTM grade 5), and even in low-content systems, a grain size refinement level of less than 120 μm can be maintained.
Owner:XIANGTAN UNIV

Titanium carbide reinforced iron-based wear-resistant corrosion-resistant flux-cored wire for surfacing welding on surface of conveying roller

The invention relates to the technical field of welding materials, in particular to a titanium carbide reinforced iron-based wear-resistant corrosion-resistant flux-cored wire for surfacing on the surface of a conveying roller. According to the specific technical scheme, the flux core comprises, by mass, 10%-20% of graphite, 25%-35% of ferrotitanium, 2%-6% of ferrovanadium, 3%-8% of electrolytic manganese metal, 2%-10% of ferromolybdenum, 5%-15% of ferrosilicon, 2% of aluminum-magnesium alloy and the balance Fe powder. According to the flux-cored wire prepared through the flux core, the surfacing alloy obtained through electric arc surfacing is good in surfacing manufacturability, attractive in weld joint forming and small in surface air hole number, and the flux-cored wire has high hardness, high-temperature abrasion resistance and corrosion resistance.
Owner:WEIHAI TIANRUN JINYU NEW MATERIAL TECH CO LTD +1

PCBN composite material and preparation method thereof

The invention provides a PCBN composite material and a preparation method thereof.The preparation method comprises the steps that two or more of zirconium oxide, titanium nitride, silicon nitride, titanium diboride, silicon carbide, titanium carbide, titanium carbonitride, aluminum oxide and aluminum nitride are mixed, and ceramic composite powder is prepared; the CBN micro powder and a metal binding agent are subjected to ball milling and mixing, and CBN pre-composite micro powder is prepared; mixing the CBN pre-composite micro powder with the ceramic composite powder to obtain a premix, placing the premix in a mold for pre-pressing to obtain a blank piece, and then assembling the blank piece for sintering to obtain a PCBN composite material; the mass percentage content of the ceramic composite powder is 5%-40%, the mass percentage content of the metal binding agent is 15%-30%, and the mass percentage content of the CBN micro powder is 45%-65%. According to the method, the toughness and the stability of the PCBN cutter can be improved on the premise of low content of CBN (Cubic Boron Nitride).
Owner:FUNIK ULTRAHARD MATERIAL

PET (Polyethylene Terephthalate) solid medicinal hard sheet and preparation method thereof

The invention discloses a PET solid medicinal hard sheet and a preparation method thereof, the PET solid medicinal hard sheet comprises PET, a stabilizer, a plasticizer, a lubricant and an antioxidant, the stabilizer comprises a modified nano titanium carbide sheet, hydroxymethyl cellulose and a stability regulator, the modified nano titanium carbide sheet contains Ti3C2A, and A is an oxygen-containing or fluorine-containing functional group. According to the invention, the interaction between the modified nano titanium carbide sheet and hydroxymethyl cellulose is utilized to form a sheet-line combined structure with a limiting effect on the plasticizer, so that the emigration rate of the plasticizer is greatly reduced, and meanwhile, the stability of the material is also well promoted.
Owner:SICHUAN HUILI IND

Alloy powder for laser surfacing and preparation method thereof

The invention relates to the technical field of alloy powder preparation, and particularly discloses alloy powder for laser surfacing and a preparation method thereof, and the alloy powder for laser surfacing comprises 8-12% of nickel (Ni), 4-6% of chromium (Cr), 2-3% of molybdenum (Mo), 1-2% of boron (B), 10-15% of titanium carbide (TiC), 0.5-1% of yttrium oxide (Y2O3), 0.5-1% of silicon (Si), 0.1-0.3% of carbon (C) and the balance of iron (Fe). Fe is used as a matrix, corrosion-resistant and solution strengthening elements such as Ni, Cr and Mo are accurately matched, a low-content Y2O3 rare earth element and a TiC nano strengthening phase are introduced, Y2O3 effectively inhibits grain coarsening in the surfacing process, the brittleness problem caused by the traditional high rare earth content is avoided, TiC nano particles are evenly dispersed in the matrix and form a composite strengthening structure with a Cr7C3 hard phase, the hardness of a surfacing layer is improved, and the hardness of the surfacing layer is improved. The wear-resistant life is prolonged.
Owner:SHANGHAI ZHUYU MATERIAL TECH CO

Wear-resistant and corrosion-resistant laser cladding powder and preparation method thereof

The invention relates to the field of laser cladding powder, in particular to wear-resistant and corrosion-resistant laser cladding powder and a preparation method thereof. The laser cladding powder is used for solving the problem that a cladding layer formed by existing laser cladding powder is poor in abrasion resistance and corrosion resistance. According to the laser cladding powder, the carbon nano tube loaded lanthanum-yttrium oxide powder and the copolymer coated titanium diboride powder are added, and the carbon nano tube and the lanthanum-yttrium oxide have a synergistic effect to refine grains, so that the corrosion resistance of a cladding layer is improved, and the carbon nano tube has good wear resistance; after the surface of the titanium diboride powder is coated with the copolymer, the dispersity of the titanium diboride is improved, a product decomposed by the copolymer reacts with the titanium diboride under the action of laser to generate titanium carbide, and the wear resistance of a cladding layer is enhanced; the laser cladding powder is suitable for prolonging the service cycle of a mold, can be used for surface strengthening of mine equipment parts, enhances the wear resistance and corrosion resistance of the mine equipment parts, reduces the maintenance frequency of the equipment, and can provide an effective solution for surface strengthening of parts in various industrial fields.
Owner:JIANGSU JIUZHOU NEW MATERIAL TECH CO LTD

3D printing copper-diamond composite high-thermal-conductivity material and preparation method thereof

The invention belongs to the field of high-thermal-conductivity composite materials, and particularly relates to a 3D printing copper-diamond composite high-thermal-conductivity material and a preparation method thereof.The 3D printing copper-diamond composite high-thermal-conductivity material comprises a copper matrix and diamond particles dispersed in the copper matrix, and the surfaces of the diamond particles are provided with metal coatings; the copper matrix is formed by copper powder with the particle size of 10-100 microns, and the volume fraction of the diamond particles in the composite material is 40%-50%; according to the method, the titanium plating layer is prepared on the surface of the diamond, the stable titanium carbide transition layer is formed through the reaction of titanium and carbon, the interface thermal resistance between the diamond and copper is remarkably reduced, the interface bonding strength is improved, and heat conduction is facilitated. The selected area green laser 3D printing technology is adopted, a green laser device shows remarkable advantages in the field of 3D printing of copper alloy, and the heat conductivity of the prepared composite material can reach and is remarkably higher than that of pure copper by optimizing the diamond volume fraction and 3D printing process parameters.
Owner:동관 화옌 뉴 매터리얼 테크놀로지 씨오 엘티디

A tool material for deep hole machining of hard metal and a method for producing the same

The application discloses a kind of hard alloy cutter materials for deep hole machining, the cutter material is composed of the following weight percentage components: tungsten carbide: 75%~85%, wherein 0.2~0.4 μm superfine tungsten carbide particles account for 60%~80%, 0.4~0.8 μm tungsten carbide particles account for 20%~40%; Cobalt: 10%~15% titanium carbide: 2%~5%; Tantalum carbide: 1%~3%; Niobium carbide: 0.5%~2%; Vanadium carbide: 0.3%~1.0%; Chromium carbide: 0.2%~0.8%; Rare earth element: Y2O3 Or La2O3: 0.1%~0.5%. The application breaks through the bottleneck of high temperature wear, insufficient strength and short service life of traditional hard alloy in deep hole machining through three-dimensional innovation of component design, structure control and surface strengthening, and provides an efficient solution for precision deep hole machining of high hardness materials.
Owner:XIAN KUNLUN IND GRP

Friction material

To provide a friction material that exhibits superior wear resistance and fade resistance under high load conditions, among other frictional performance characteristics. [Solution] A friction material comprising a fibrous base material, a friction modifier, and a binder, wherein the copper content is 0.5% by mass or less in terms of copper element, the fibrous base material contains steel fibers, the steel fiber content is more than 20% by mass and less than 50% by mass, and the friction modifier contains titanium carbide powder.
Owner:AKEBONO BRAKE IND CO LTD

Lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material, preparation method thereof, positive plate and lithium ion battery

The invention provides a lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material, a preparation method thereof, a positive plate and a lithium ion battery. The chemical structural formula of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material is LiMn1-xFexPO4 / Ti3C2, wherein x is more than or equal to 0.1 and less than or equal to 0.9. In the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material, a part of titanium ions occupy an M site in lithium manganese iron phosphate to form a metal-hole pair, so that the Jahn-Teller effect can be reduced, the dissolution of manganese ions caused by lattice distortion in the circulation process can be reduced, and the service life of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material is prolonged. Further, the structural stability and the cycle performance of the lithium manganese iron phosphate / titanium carbide heterojunction positive electrode material can be improved. Besides, reversible high capacity is realized by constructing a heterostructure and titanium carbide absorbing and utilizing lattice oxygen, and a stable positive electrode / electrolyte interface is obtained, so that a positive electrode system is favorably stabilized, and stable output of electrochemical performance is favorably promoted.
Owner:SHANGHAI XUANYI NEW ENERGY DEV CO LTD

Preparation method and application of fabric-based composite photocatalytic material

The invention provides a preparation method and application of a fabric-based composite photocatalytic material, and belongs to the technical field of functional textiles. The preparation method comprises the following steps: mixing titanium carbide with bismuth vanadate and stannic oxide, carrying out ultrasonic treatment, sequentially adding waterborne polyurethane and a cotton fabric, reacting, and drying to obtain the fabric-based composite photocatalytic material. The bismuth vanadate / tin dioxide / titanium carbide (MXene) composite material prepared by a water bath method is prepared by taking waterborne polyurethane as a cross-linking agent and loading a catalyst onto a cotton fabric through multiple times of water bath oscillation, and has excellent photocatalytic performance and recoverability. The fabric-based composite photocatalytic material provided by the invention solves the key problems of insufficient catalytic efficiency, difficult recovery and the like of a bismuth vanadate single-phase material and a binary composite material.
Owner:WUHAN TEXTILE UNIV +1

High-wear-resistance floor coating based on TiC hybrid resin and preparation process of high-wear-resistance floor coating

The invention relates to a high-wear-resistance floor coating based on TiC hybrid resin and a preparation process of the high-wear-resistance floor coating, and belongs to the technical field of floor coatings. The high-wear-resistance floor coating is prepared from a component A and a component B in parts by weight, wherein the component A is prepared from 90 to 100 parts of modified waterborne epoxy resin emulsion; the component B comprises the following components in parts by weight: 20-30 parts of modified fibrous wollastonite, 0.5-1.5 parts of a flatting agent, 0.5-1 part of a defoaming agent, 1-2 parts of a wetting dispersant, 30-45 parts of a water-based amine curing agent and 20-40 parts of water; the weight ratio of the component A to the component B is 1: (0.75-0.85); titanium carbide subjected to amination and surface grafting polycaprolactone treatment is added into the coating, so that the wear resistance of the floor coating can be improved.
Owner:SHANGHAI ZHENGOU IND

Sodium ion battery negative electrode material, preparation method and application thereof

The application relates to a sodium ion battery negative electrode material and a preparation method and application thereof, and belongs to the technical field of sodium ion batteries. The sodium ion battery negative electrode material comprises sodium titanate and a composite coating layer coated on the surface of the sodium titanate, and the composite coating layer comprises titanium carbide and carbon; the mass ratio of the sodium titanate, the titanium carbide and the carbon is (70-90):(5-15):(2-10). Through the compounding of the sodium titanate and the composite coating layer (titanium carbide and carbon), the conductivity is significantly improved, the 10C capacity retention rate is increased from 30% to 70%, and the coulomb efficiency is increased from 65% to 95%.
Owner:BENAN ENERGY TECH JIANGSU CO LTD

Tungsten hard alloy and preparation method and application thereof

ActiveCN121555879AIron powderAlloy
The invention relates to the technical field of functional materials, in particular to a tungsten hard alloy and a preparation method and application thereof. According to the invention, yttrium oxide and cerium oxide with specific contents are compounded for use, so that the hardness of the tungsten hard alloy is further improved. Moreover, through graphene oxide, on one hand, the hardness of the tungsten hard alloy is improved, on the other hand, the integrality and the machining performance of all the components are enhanced, and it is guaranteed that yttrium oxide is effectively combined with cerium oxide, tungsten carbide and titanium carbide. By introducing the iron powder and the cobalt powder, on one hand, the bonding effect is achieved, and on the other hand, the synergistic effect of yttrium oxide, cerium oxide and graphene oxide is promoted, so that the tungsten hard alloy with higher hardness is formed on the premise that the overall performance of the tungsten-titanium-cobalt hard alloy is guaranteed. The tungsten hard alloy provided by the invention can meet the performance requirements in the field of cutting or precision parts, can be processed into cutting tools or precision parts, and has a wide application prospect.
Owner:国瑞科创稀土功能材料(赣州)有限公司

A flexible encapsulated aerogel composite and method of making the same

ActiveCN116376267BCelluloseFiber
The application provides a flexible encapsulated aerogel composite material and a preparation method thereof. The flexible encapsulated aerogel composite material uses titanium carbide as a conductive filler, uses carboxylated cellulose nanofiber as an aerogel skeleton, and uses a thermoplastic polyurethane / silicon wrapped ammonium polyphosphate composite material as an encapsulated outer layer. The flexible encapsulated aerogel composite material prepared by using the technical scheme has super-high electromagnetic shielding efficiency, can obviously reduce the fire risk of the aerogel, and reduce the release of heat and toxic smoke gas in the combustion process, so that the application of the flexible encapsulated aerogel composite material in wearable materials, home decoration, aerospace, electronic communication, transportation and the like is effectively widened.
Owner:FUZHOU UNIV

High-strength wear-resistant wind power ductile iron and processing technology thereof

The invention discloses high-strength wear-resistant wind power ductile iron and a processing technology thereof, and belongs to the technical field of casting. The processing technology of the high-strength wear-resistant wind power ductile iron comprises the following steps: A1, sequentially adding waste steel, a carburant, pig iron, foundry returns and ferroniobium into an intermediate frequency furnace, standing after all furnace charges are molten, and removing slag; a2, a spheroidizing agent, a nucleating agent, metal antimony, titanium carbide and a covering agent are sequentially added to the bottom of a steel ladle, and then molten iron in the step A1 is poured into the steel ladle for spheroidizing and inoculation; a3, the molten iron obtained after spheroidizing and inoculation is subjected to slagging-off and then poured into a casting mold, and a stream inoculant is added in the pouring process; a4, after pouring is finished, slowly cooling in the sand mold to below 400 DEG C, and removing a casting from the casting mold; and A5, the casting is subjected to pulse current quenching treatment and then subjected to pulse current normalizing treatment, and the high-strength wear-resistant wind power ductile iron is obtained. The prepared high-strength wear-resistant wind power ductile iron is high in strength and good in wear resistance, and the low-temperature impact performance meets the requirement of QT500-14AL.
Owner:JIANGSU JIXIN WIND ENERGY TECH

Waterproof composite coating for non-stick pan and preparation method thereof

The invention relates to the technical field of coatings, and discloses a waterproof composite coating for a non-stick pan and a preparation method of the waterproof composite coating, the composite coating sequentially comprises a transition bonding layer, a waterproof blocking layer and a surface non-stick layer from inside to outside, and each layer is prepared from raw materials in a specific proportion. The transition bonding layer takes titanium carbide, potassium feldspar and the like as main raw materials, the waterproof blocking layer comprises bisphenol A epoxy resin, modified tea polyphenol and the like, and the surface non-stick layer takes polytetrafluoroethylene as a core. The preparation method sequentially comprises the steps of substrate pretreatment, transition bonding layer preparation, waterproof barrier layer preparation and surface non-sticky layer preparation, and the process is simple and controllable. The composite coating has excellent waterproof performance, firm binding force with a base body and good non-stick performance, the service life of the non-stick pan can be effectively prolonged, health risks caused by coating damage are reduced, and the composite coating is suitable for large-scale production.
Owner:HUNAN HENGSHENG KITCHENWARE CO LTD

Four-phase composite ceramic heating element and preparation method thereof

The invention discloses a four-phase composite ceramic heating element and a preparation method thereof, and relates to the technical field of ceramic heating materials, the composite ceramic heating element comprises the following components: 30%-40% of titanium diboride, 30%-40% of titanium carbide, 10%-28% of silicon carbide, 1%-12% of hexagonal boron nitride, 0.5%-3% of nano zirconium dioxide and 1%-4% of silicon nitride. A four-phase composite system of TiB2 (titanium diboride), TiC (titanium carbide), SiC (silicon carbide) and hBN (hexagonal boron nitride) is constructed, basic expansion reduction is achieved through the low expansion characteristic of SiC, thermal expansion mismatching stress between different phases is dispersed in combination with the interface regulation and control effect of an h-BN layered structure, compared with an existing ternary system, the minimum thermal expansion coefficient is reduced to 5.8 * 10 <-6 > K <-1 >, and the thermal expansion coefficient is reduced to 5.8 * 10 <-6 > K <-1 >. And the interfacial compatibility is remarkably improved, and thermal stress is prevented from being gathered at the interface.
Owner:GUIZHOU MUYEE FINE CERAMIC

Lightweight high-thermal-conductivity flame-retardant composite material for air conditioning system and preparation method thereof

The invention belongs to the technical field of polymer composite materials, and relates to a light-weight, high-heat-conductivity and flame-retardant composite material for a new energy automobile air conditioning system and a preparation method of the light-weight, high-heat-conductivity and flame-retardant composite material. 10 to 25 parts of multifunctional compound filler; the multifunctional compound filler is formed by compounding two-dimensional titanium carbide nanosheets and hexagonal boron nitride microsheets according to the mass ratio of (1: 4)-(1: 1). 2 to 5 parts of compatilizer; 0.1 to 0.5 part of an antioxidant; and 0.5 to 1.5 parts of a lubricant. Through precise compounding of MXene and h-BN, a new triple synergistic mechanism of heat conduction, electromagnetic shielding and flame retardance is created, hexagonal boron nitride serves as a main heat conduction phase, and a phonon conduction path is built in a matrix through a sheet structure of the hexagonal boron nitride; the two-dimensional titanium carbide nanosheets play a bridging role among the h-BN micron sheets by virtue of high conductivity and huge specific surface area, so that the interface thermal resistance is remarkably reduced, a heat-conducting network is optimized, and meanwhile, the metal conductivity of MXene endows the material with excellent electromagnetic shielding effectiveness.
Owner:SOUTH AIR INT

Method for growing titanic acid / titanium dioxide nanoparticles on titanium carbide Mxene sheet layer

The invention discloses a method for growing titanic acid / titanium dioxide nanoparticles on a titanium carbide Mxene sheet layer, and relates to a method for growing titanic acid / titanium dioxide nanoparticles on the surface of a titanium carbide Mxene sheet layer structure. The method comprises the following steps: firstly, etching titanium aluminum carbide at room temperature by adopting hydrofluoric acid to obtain a layered titanium carbide Mxene material, then dispersing the layered titanium carbide Mxene material in hydrogen peroxide with the mass percent concentration of 20-30%, simultaneously adding 0.6 ml of 65% nitric acid, and reacting for 24-72 hours at the temperature of 20-80 DEG C, so that titanic acid nanoparticles can grow on the surface of a titanium carbide Mxene lamellar structure; and subsequently carrying out heat treatment in an air atmosphere at 200-500 DEG C, and converting the titanic acid into anatase titanium dioxide. The preparation temperature is low without high pressure; the nanoparticles keep a lamellar structure aggregation state, and are expected to be applied to the fields of adsorption, photocatalysis and the like.
Owner:ZHEJIANG ZINC CORE FRIENDLY ENVIRONMENTAL MATERIAL TECH CO LTD +1

Silver-nickel-titanium electric contact material and preparation method thereof

The invention provides a silver-nickel-titanium electric contact material and a preparation method thereof. By adopting a nickel-titanium alloy material as a main additive, the welding resistance of the electric contact material is improved while the good machinability of the material is maintained. NiTi is introduced as a main additive to be added into an Ag matrix to improve the fusion welding resistance of the material, meanwhile, a small amount of trace copper is also added to mainly improve the wettability of the material, and the C powder and the titanium carbide powder improve the fusion welding resistance of the material. In addition, a powder metallurgy process is adopted, material proportion is easy to control, process flow is short, and cost is low. The rapid plasma electric spark sintering speed is high, the time is short, and the material density is high.
Owner:ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD

A wheat special-purpose fertilizer suitable for rice-wheat rotation mode and a preparation method thereof

PendingCN122277325ASoil scienceFreeze-drying
This invention discloses a wheat-specific fertilizer suitable for rice-wheat rotation and its preparation method, comprising the following steps: mixing equal volumes of carboxymethyl chitosan solution, composite biochar dispersion, and agar solution, then adding sodium tripolyphosphate solution dropwise, stirring, allowing to stand, dialyzing, and freeze-drying to obtain hydrogel particles; swelling the hydrogel particles in a mixed aqueous solution of urea and superphosphate, filtering, and vacuum drying to obtain the wheat-specific fertilizer suitable for rice-wheat rotation; this invention uses a coating material to coat composite biochar powder, nitrogen fertilizer, and phosphate fertilizer, and improves the utilization rate of nitrogen and phosphate fertilizer through the slow-release effect of the coating material; by adsorbing fixed trace metal elements through the coating material, the slightly acidic state of the phosphate fertilizer during dissolution is used to convert the adsorbed fixed trace metal elements into a free state, and then titanium aluminum carbide promotes the movement of the free trace metal elements, thereby promoting the absorption and utilization of trace metal elements by wheat roots and improving wheat yield and quality.
Owner:ANHUI ZEGUO AGRICULTURAL TECHNOLOGY CO LTD

Preparation method of novel antibacterial nano composite hydrogel for repairing diabetic oral ulcer

The invention relates to the technical field of biological materials, and discloses a preparation method of novel antibacterial nano composite hydrogel for repairing diabetic oral ulcer. Comprising the following steps: grafting 2-formylphenylboronic acid on titanium carbide (MXene) nanosheets to form MXene (at) FPBA nanoparticles, carrying out an amidation reaction on lipoic acid and recombinant collagen to obtain modified recombinant collagen, doping the MXene (at) FPBA into the modified recombinant collagen system, and carrying out photo-crosslinking to obtain the novel antibacterial nano composite hydrogel. The hydrogel combines the strong anti-oxidation and anti-inflammatory capabilities of lipoic acid, does not need to add anti-inflammatory drugs, and also has good adhesiveness; the MXene (at) FPBA nano particles can be used for capturing bacteria and carrying out efficient sterilization; and the raw materials used by the material have biological safety. Therefore, the hydrogel has the antibacterial property and the anti-inflammatory function, and can comprehensively and efficiently manage and treat diabetic oral ulcer wounds.
Owner:NORTHWEST UNIV

Inorganic millstone and preparation method thereof

PendingCN121318312ASisal fiberPhysical chemistry
The invention relates to the technical field of inorganic millstone preparation, and particularly discloses an inorganic millstone and a preparation method thereof. The inorganic millstone comprises cement, sand, aggregate, modified sisal fibers, glass, color pigment and a water reducing agent, the aggregate comprises calcined oyster powder, silicon dioxide modified ceramic powder and slag powder, and the modified sisal fibers are prepared by sequentially carrying out alkali treatment, titanium carbide coating and silane coupling agent treatment on sisal fibers. According to the inorganic millstone provided by the invention, the aggregate components and the fiber components are optimized, so that the prepared inorganic millstone has excellent strength and wear resistance, and a new idea is provided for preparation of the inorganic millstone.
Owner:HEBEI QIANBAO SPECIAL CEMENT CO LTD

Electrical contact material for high-resistance circuit breaker and preparation method of electrical contact material

The invention discloses an electric contact material for a high-resistance circuit breaker and a preparation method of the electric contact material, and relates to the technical field of electric contact materials for circuit breakers, the material comprises the following components based on 100 parts by weight of the total weight of a finished product: 92.0-96.8 parts by weight of a pre-alloyed matrix phase which is Ag-30Ni pre-alloyed powder prepared by a gas atomization method; an in-situ carbon reinforcing phase: 1.0 to 2.0 parts by weight of a novolac resin powder as a carbon precursor; the three-phase functional layer phase is 0.1-5.0 parts by weight and is one of tungsten carbide and titanium carbide or a compound of tungsten carbide and titanium carbide according to the weight ratio of 1: 1; the copper infiltration filling phase is electrolytic copper powder or oxygen-free copper liquid; a multi-phase synergistic material system is constructed, all components are complementary, core performance such as arc resistance is balanced and optimized, and the problem that a traditional contact material is short in service life is solved; a precise preparation process chain is integrated, the structure and performance are directionally regulated and controlled, defects are reduced, the anti-loss capacity is improved, the strict requirements of a high-resistance circuit breaker are met, and the service cycle is prolonged.
Owner:WENZHOU JUXING ELECTRIC CONTACT TECH

Application of titanium carbide supported osmium metal catalyst for hydrogen and deuterium isotope separation by electrolysis of water

The application discloses application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, the carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, the active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and structure of the hydrogen evolution and deuterium evolution catalyst. The osmium metal is loaded on the titanium carbide base, the hydrogen evolution selectivity is improved and the energy consumption is reduced through strong mutual action of the metal-carrier.
Owner:ZHEJIANG UNIV OF TECH

Alkalized titanium carbide-based composite corrosion inhibitor, and preparation method and application thereof

The application provides a kind of alkali carbonization titanium-based composite corrosion inhibitor and its preparation method and application, belong to the technical field of stimulus response self-repairing coating, the preparation method of composite corrosion inhibitor includes: first etching titanium carbide aluminum by chemical etching method to obtain titanium carbide two-dimensional material, then the alkali treatment is carried out to the titanium carbide two-dimensional material, then the alkali carbonization titanium carbide two-dimensional material is intercalated by corrosion inhibitor cation, and the alkali carbonization titanium-based composite corrosion inhibitor is obtained, the composite corrosion inhibitor can be used to prepare self-repairing coating, the physical shielding effect of Ti3C2 two-dimensional material in composite corrosion inhibitor and the synergistic corrosion prevention effect between Zn 2+ And Ce 3+ Improve the corrosion resistance and service life of self-repairing coating.
Owner:TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +2

Application of titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis for hydrogen isotope separation

The invention discloses an application of a titanium carbide loaded osmium metal hydrogen evolution and deuterium evolution catalyst in water electrolysis separation of hydrogen isotopes, a carrier of the hydrogen evolution and deuterium evolution catalyst is titanium carbide, an active component is osmium metal loaded on the carrier, and the loading amount of the osmium metal is 7-15% of the mass of the carrier. The hydrogen isotope separation efficiency is improved by improving the composition and the structure of the hydrogen and deuterium evolution catalyst. Osmium metal is loaded on a titanium carbide substrate, and hydrogen evolution selectivity is improved and energy consumption is reduced through strong interaction of metal and a carrier.
Owner:ZHEJIANG UNIV OF TECH

Electrode, method of manufacturing the same, and electronic device

This application provides an electrode comprising a first electrode material layer and a second electrode material layer disposed on the surface of the first electrode material layer. The first electrode material layer is made of titanium carbide doped with a metal, and the second electrode material layer is made of titanium carbonitride doped with the metal, wherein the doping metal includes at least one of aluminum and copper. The electrode provided by this application exhibits excellent corrosion resistance and low contact resistance. This application also provides a method for fabricating the electrode and an electronic device thereof.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD +1