161results about How to "Regulated content" patented technology

The invention relates to a TiAl intermetallic compound-based solid seif-lubricating composite material which comprises Ti3SiC2, Ti2AlC and C which are used as the ternary composite lubricating phase and TiC which is used as the reinforced phase, and a preparation method thereof. The TiAl intermetallic compound-based solid seif-lubricating composite material is characterized in that the material is prepared from Ti powder, Al powder, Cr powder, Nb powder, B powder and Ti3SiC2 powder, wherein the molar ratio of Ti, Al, Cr, Nb and B is 48:47:2:2:1 and the dosage of the Ti3SiC2 powder is 5-20wt.% of the total weight of the Ti powder, Al powder, Cr powder, Nb powder and B powder. The TiAl / Ti3SiC2-Ti2AlC-C / TiC intermetallic compound-based solid seif-lubricating composite material synthesized by the method is novel in component design (the intermetallic compound matrix, the composite lubricating phase and the reinforced phase), high in density, good in tribological properties, stable in technological parameters, fast and simple in preparation process and easy in operation and the method is suitable to be used to prepare the high performance TiAl intermetallic compound-based solid seif-lubricating composite material.

The invention relates to a preparation method of a NiAl intermetallic base solid self-lubricating composite material containing Ti3SiC2 and C binary composite lubrication phase and wild phase TiC. The NiAl intermetallic base solid self-lubricating composite material is prepared from Ni powder, Al powder, Mo powder, Nb powder, Fe powder, B powder and Ti3SiC2 powder, wherein the molar ratio of Ni: Al: Mo: Nb: Fe: B=48: 50: 1: 1: 0.5: 0.02, and the addition quantity of the Ti3SiC2 powder is 5-20 weight percent of the total weight of the Ni powder, the Al powder, the Mo powder, the Nb powder, theFe powder and the B powder. The NiAl / Ti3SiC2-C / TiC intermetallic base solid self-lubricating composite material synthesized by the method has novel component design (intermetallic matrix+ composite lubrication phase+ wild phase), high density, good tribological properties and stable technological parameters. The preparation process is fast and simple, and the method is easily operated and is suitable for preparing NiAl intermetallic base solid self-lubricating composite materials with high performance.

The invention provides a nitrogen-enriched porous material / carbon nano structure composite material as well as a preparation method and application thereof. The composite material is prepared from a nitrogen-enriched porous material and various carbon nano materials by compounding. The preparation method comprises the following steps: melamine, a polyformyl aromatic compound and the carbon nano materials are in contact in an organic solvent to obtain a product, and the contacted product is subjected to a series of processes including separation, heat treatment, washing, drying and the like to obtain the nitrogen-enriched porous material / carbon nano structure composite material. The prepared nitrogen-enriched porous material / carbon nano structure composite material has the high nitrogen content, abundant pore structures and uniformly-distributed carbon nano composite components. The composite material can be used as an electrode material and is applied to secondary batteries including lithium ion batteries and the like; and the composite material has the high capacity and the excellent circulating performance and rate capability, and can meet the requirements of the lithium ion batteries in the actual application.

The invention discloses a silicon carbide fiber solid fabric for in-situ growing carbon nano tubes, which is formed by mainly weaving silicon carbide fibers. In the invention, in-situ grown carbon nano tubes are uniformly distributed on the surfaces of the silicon carbide fibers and mutually wound to form a reticular structure. The preparation method comprises the following steps of: pretreating the silicon carbide fiber solid fabric; loading a Ni-La-Al composite catalyst by adopting a catalyst precursor vacuum impregnation-reduction method; and finally, carrying out chemical gas-phase deposition to ensure that the carbon nano tubes are in-situ grown on the silicon carbide fiber solid fabric. The invention also discloses a carbon nano tube-silicon carbide fiber mixed enhanced composite material which is prepared by using silicon carbide as a substrate and the silicon carbide fiber solid fabric as a reinforcement body by adopting a traditional precursor impregnation-conversion method. The silicon carbide fiber solid fabric has the advantages of uniform carbon nano tube dispersion, higher and controllable carbon nano tube content, good combination with fibers, and the like.

The invention relates to a preparation method and application of an antibacterial glass coating of an antibacterial bone fracture plate. The method comprises the following steps: preparing sterile ion-containing borate bioactive glass, crushing the glass, and screening into glass powder with a certain size; adding a liquid-phase solvent, adhesive and stabilizer to the glass powder to prepare uniform glass slurry; coating the glass slurry to the surface of a titanium or titanium alloy bone fracture plate by utilizing a mechanical immersion method or a low temperature spraying method, drying with infrared ray or heat, and curing the slurry to the surface of the bone fracture plate; and volatilizing the solvent and the additives by virtue of high temperature sintering treatment, re-melting the residual glass powder to form molten glass, and adhering to the surface of the bone fracture plate to form the antibacterial glass coating capable of resisting bacteria and promoting tissue growth. The preparation method has the advantages of simple production process, easiness in operation, low cost and scale production; and the antibacterial glass coating has the functions of effective antibacterial performance and bioactivity in promotion of bone cell growth.

The invention discloses a graphene oxide reinforced composite carbon nanopaper and a production method thereof. The above carbon paper includes: a carbon nanotube substrate including a skeleton network mainly formed by carbon nanotubes; and at least an enhanced network for connecting the carbon nanotubes in the skeleton network, wherein the enhanced network is mainly formed by graphene oxide dispersed in the skeleton network. The production method comprises the following steps: uniformly mixing a carbon nanotube dispersion with a graphite oxide graphene dispersion filtering to form a film, and peeling the formed film from a substrate filter film in order to obtain a target product. The composite carbon nanopaper has greatly improved mechanical properties, has no apparent loss of the excellent electrical conductivity or thermal conductivity, fully solves the problem of poor mechanical strength of present carbon tube nanopaper, and has the characteristics of electrical conduction, thermal conduction, light weight, flexibility and high efficiency. The production method has the advantages of simplicity, easy operation, good controllability, low cost and wide application prospect.

The invention provides an integrative negative plate used for a lithium ion battery. The integrative negative plate is prepared from negative electrode materials and metal powder, wherein the metal powder does not form alloy with metal lithium. The invention also provides a preparation method of the integrative negative plate and the lithium ion battery which contains the above integrative negative plate. The integrative negative plate has good comprehensive performance and excellent negative plate conductivity, and the specific energy density of the unit volume or the unit mass of the battery is greater than the specific energy density of a common lithium ion battery.

The invention relates to an aeroengine case seam allowance size repairing method. The porosity and hardness of a coating and the content of oxides in the coating can be effectively adjusted by controlling the plasma spraying power and the heating process of spraying powder during flying, and heat stress of the coating is reduced. The hardness and thermal expansion coefficient of the prepared nickel-aluminum coating are equivalent with those of a case, the bonding strength of the coating is far higher than the stress strength of a case seam allowance under the given working condition, and the use working condition of the aeroengine case can be met.

The invention discloses a three dimensional graphene / hollow carbon sphere / sulfur composite material, a preparation method thereof, and an application in lithium-sulfur batteries. The three dimensional graphene / hollow carbon sphere / sulfur composite material comprises nanometer elemental sulfur and a three dimensional graphene-hollow carbon sphere nano-compound, and the nanometer elemental sulfur is distributed in the three dimensional graphene-hollow carbon sphere nano-compound. The preparation method comprises the following steps: dispersing the three dimensional graphene-hollow carbon sphere nano-compound in an alcohol and water mixed solvent to obtain a suspension; and adding an aqueous solution of Na2S.9H2O and Na2SO3 into the suspension, adding an acidic solution, and reacting to obtain the three dimensional graphene / hollow carbon sphere / sulfur composite material. The composite material has the advantages of high specific capacity, stable cycle performances, and excellent rate performance and coulombic efficiency, the preparation method has the advantages of simplicity, convenience and good effect, and the composite material can be applied in the preparation of lithium-sulfur battery positive electrode materials.

The invention discloses a humidity sensor of combination of polyelectrolyte and intrinsic conducting polymer and the fabricating method. It adopts glass ceramic as substrate and multiple pairs of interdigital golden electrodes are set on it. Humidity film of combination of poly 4-vinypyridine with cross-linking quaternary amination and polypyrole is coated on surface of glass ceramic and interdigital golden electrode. The invention is provided with simple preparing process and low cost. It is suitable for mass production especially. Prepared humidity sensors are all provided with moderate resistance, high sensitivity, good linearity, quick response, good recurrence, strong stability and measuring in room temperature so on in wide humidity range, especially in circumstance with middle-low humidity (0-60%). It can be applied in production process of industry and agriculture, storage and accurate measurement and control for circumstance humidity when air circumstance is monitored.

The present invention relates to a controllable preparation method of a nitrogen-doped porous carbon-supported metal monoatomic material, and belongs to the technical field of material science and engineering. According to the present invention, porphyrin and a metalloporphyrin are polymerized through a polymerization reaction. The proportions of the porphyrin and the metalloporphyrin are regulated to regulate a metal content (0.06-4.00wt%), and monoatomic metal types (A type, AB type, ABC type) are regulated by regulating different types of metalloporphyrins. According to the present invention, controllable preparation of a metal monoatomic material is realized with good expansibility and reproducibility; meanwhile, the problems of low metal content, few types and the like in the prior art are solved, and researches in the related fields such as the synthetic methodology of metal monoatomic materials and the like.

The invention relates to a bimetal organic framework material adsorbent applied to methane / nitrogen separation and a preparation method thereof. The bimetal organic framework material adsorbent is a compound with super-molecular porous network structure, wherein the compound is formed by coordinating two metal ions with an organic ligand HCOOH under the action of an adjusting agent; at least one of the two metal ions is Ni(II); the coordination conditions of different metals are controlled by adjusting complexation of Ni(II) to obtain several bimetal organic framework materials with different metal ratios. The prepared adsorbent has rich micro-porous structures; the purpose of adjusting pore properties microscopically is achieved; the NH4 / N2 separation effect is excellent; the material is simple to prepare and low in cost, and is extremely applicable to development and recycling of low-quality methane separated under low pressure.

The invention discloses silicon carbide ceramic with adjustable resistance and a preparation method thereof. The ceramic material mainly comprises a silicon carbide phase as a main phase, boron carbide as a sintering aid phase, and a carbon phase as a conductive phase, and the ceramic material can be prepared and has the bulk resistivity adjustable from 10<-2> to 10<8> Omega.cm. The silicon carbide ceramic has a density of 3.00 to 3.20 g / cm<3>. The core of the method is to coat the surface of silicon carbide raw material powder with a graphene-based material layer, and to adjust the content ofthe conductive phase in the silicon carbide ceramic to obtain the silicon carbide ceramic with adjustable bulk resistivity.

The invention discloses feed for promoting growth and development of broilers and a preparation method thereof. The feed is prepared from the following raw materials in parts by weight: 170-180 parts of dried sweet potato, 30-40 parts of corncob, 12-14 parts of dried distillers grain, 8-12 parts of red clover, 6-8 parts of egg-shell meal, 7-9 parts of sunflower meal, 10-15 parts of sargassum thunbergii, 5-7 parts of coconut shell flour, 4-5 parts of garlic powder, 15-20 parts of field-snail-meat, 20-30 parts of setosa immature stems, 16-18 parts of banana skin, 10-14 parts of ulva, 9-11 parts of kelp, 5-7 parts of chrysanthemum nankingense, 15-17 parts of water chestnut stems, 12-15 parts of coffee leaves, 2-3 parts of salt, 8-10 parts of Poria cocos, 7-9 parts of lycium barbarum, 3-5 parts of rhizoma curculiginis, 2-4 parts of isatis root, 1-3 parts of wahlenbergia marginata, 6-8 parts of fructus amomi, 0.5-0.7 part of choline chloride, 3-5 parts of medical stone powder and 7-9 parts of nutrition additives. The feed disclosed by the invention has the effects of regulating the metabolism of body cells, increasing the appetite of broilers, increasing the feed intake, improving the digestive absorption capacity and promoting growth and development, the weight of the broilers can be effectively increased, and the growth cycle of the broilers is shortened. Moreover, diseases of the broilers can be reduced, and the death rate of the broilers is reduced.

The invention discloses a mesoporous nickel oxide and carbon composite nano-material and a preparation method thereof. The mesoporous nickel oxide and carbon composite nano-material is composed of 1% of oxygen atom, 2.72-3.75% of nickel atom and 96.28-95.25% of carbon atom; the specific surface area of the material is 435.5-800 m2 / g, the pore volume of the material is 1.08-1.5 cm3 / g, and the aperture of the material is 2.5-12.0nm. The mesoporous nickel oxide and carbon composite nano-material of large specific surface area, pore volume and aperture is prepared by a self-assembly method induced by evaporation by taking a nonionic surfactant as a template and an inorganic nickel salt as a nickel source. The mesoporous nickel oxide and carbon composite nano-material can be used as electrode material for preparing super capacitor. The preparation method is simple, raw materials are simple and easy to obtain, and the method is suitable for large-scale production.

The invention discloses a polyurethane imide-graphene / nanometer carbon fiber blending wave-absorbing foam material and a preparation method thereof. According to the preparation method, dianhydride, polyalcohol, an adjuvant nanometer carbon fiber, a catalyst, a foaming agent and a foam stabilizer are mixed to obtain a component A, and the adjuvant is graphene or graphene oxide; and (2) the component A and polyisocyanate are mixed and then undergo foaming to obtain the olyurethane imide-graphene / nanometer carbon fiber blending wave-absorbing foam material. The method of the invention has the following advantages that (1) the contents of the raw materials can be adjusted in a wider range based on the one-step process of the method; (2) the nanometer carbon fiber as the wave absorber can make the foam material have good wave absorption performance; and (3) by adding graphene in the system, the mechanical performances of the foam material such as compression are greatly improved, and the electric performance of the foam material can be improved.

The invention discloses a method for synthesizing a nano-sized zeolite molecular sieve suitable for VOCs adsorption. The method includes the following steps that firstly, water and an organosilicone alkylation solvent are added into a container according to the formula and evenly stirred, then a non-ionic surfactant P123 and sodium fluoride are added according to the formula, the materials are evenly mixed, heated and stirred to remove methyl alcohol generated through hydrolysis of the organosilicone alkylation solvent, and a pretreatment solution is obtained; secondly, inorganic heteroatom salt and a template agent are added into the pretreatment solution according to the formula to prepare a uniform gel, then the gel is transferred into a stainless steel reaction kettle for sealed hydrothermal treatment, and turbid liquid is obtained; thirdly, the turbid liquid is subjected to suction filtration, washing, drying and calcinations, and a white powder product is obtained. The product prepared through the synthesis method is the zeolite molecular sieve which is large in specific surface area and high in crystallization degree and ultrahigh in hydrophobicity, has the advantages of being simple in process and low in production cost, and is suitable for VOCs adsorption.

The invention provides a B-Al-ZSM-11 zeolite catalyst in the methanol to propylene reaction and a preparation method of the B-Al-ZSM-11 zeolite catalyst. In the invention, the method includes the following steps: a boron source, an aluminium source, a silicon source, an alkali source, an inorganic salt, a template and water are used as raw materials; the raw materials are subjected to crystallization, filtration, washing, drying and roasting; the ZSM-11 zeolite simultaneously containing boron, aluminium and silicon in the skeleton is synthesized by one step. The synthetic process is simple, the degree of crystallinity of the product is high, the content of skeleton boron and aluminium can be adjusted, and the acid strength of a molecular sieve can be effectively controlled; the B-Al-ZSM-11 zeolite synthesized by the method can be used for catalyzing the methanol to propylene reaction, and is higher in propylene selectivity and product P / E ratio (molar ratio of propylene to ethylene in the product) compared with B-Al-ZSM-5 or ZSM-11.

The invention belongs to the technical field of electric porcelain brown glaze toner, and particularly discloses brown glaze. The brown glaze comprises the following raw materials of, in parts by mass, 18-26 parts of potassium feldspar, 6-14 parts of albite, 2-8 parts of Inner Mongolia soil, 10-18 parts of Shaanxi kaolin, 7-12 parts of calcined talc, 0-3 parts of limestone, 25-33 parts of quartz powder, 1-1.6 parts of iron oxide red, 0.4-1.2 parts of chromium oxide and 7-12 parts of manganese oxide. The invention furthermore discloses a production method of the brown glaze. The production method of the brown glaze comprises the following steps of (1) raw material preparation, (2) ball-milling, (3) deironing treatment and (4) aging. According to the brown glaze produced by using the production method, the product yield is improved, the brown glaze has good comprehensive performance, and the production cost is effectively reduced so that the market requirements can be well met.

The invention relates to the field of biostimulants and particularly relates to a preparation method for a plant growth stimulant and an application of the plant growth stimulant. The plant growth stimulant is prepared through preparing a seed solution from yellow-ocher streptomyces, inoculating the seed solution to a fermentation tank containing a mixed culture medium of maize meal, soybean meal, glutamic acid, potassium dihydrogen phosphate, sodium chloride, seaweed powder and cerealose which are in a certain ratio, carrying out fermentation, and uniformly mixing fermentation broth of the yellow-ocher streptomyces with multivitamins, multiple amino acids and algal polysaccharides which are in a certain ratio. The plant growth stimulant disclosed by the invention can be added into organic fertilizers, water-soluble fertilizers and microbicides according to a certain ratio so as to carry out synergizing, increase yield, prolong drug effect duration and enhance immunity. The plant growth stimulant disclosed by the invention has the effect of playing a role in stimulating natural courses of plants, including being beneficial to the enhancement of nutrient absorption, nutritional effects, abiotic stress resistance and crop quality, promoting the growth of roots, stems and leaves of crops, and improving the resistance of the crops, can be used for stimulating cell division of plants, promoting formation of chlorophyll and enhancing photosynthesis of the plants and has the aims of promoting growth, advancing ripeness, keeping enough flowers and young fruits, increasing yield, improving crop quality and achieving the yield increase and high yield of the crops.

The invention belongs to the technical field of paints, and discloses a nano zinc oxide grafted aqueous UV light-cured polyurethane resin and a preparation method thereof. The preparation method comprises the following steps: reacting aromatic or aliphatic diisocyanate with polyether glycol at a temperature of 70 to 90 DEG C in the presence of a catalyst to obtain a polyurethane prepolymer (I); controlling the temperature in a range of 60 to 80 DEG C, dropwise adding an acetone solution of dimethylolpropionic acid to carry out reactions to obtain a polyurethane prepolymer (II); then adding hydroxypropyl acrylate, which contains nano ZnO, a catalyst, and a polymerization inhibitor, and a mixed dispersion liquid of pentaerythritol triacrylate to carry out graft copolymerization reactions, cooling the reaction products, then adding a neutralizing agent and water, stirring, evenly mixing, and removing the solvent (acetone) to obtain the nano zinc oxide grafted aqueous UV light-cured polyurethane resin. The provided polyurethane resin has the advantages of high mechanical strength, high light-cured speed, excellent water resistant performance, and good storage stability.

The invention relates to a double-phase stainless steel bar and a preparation method thereof and belongs to the technical field of high-strength stainless steel. The alloy components of the double-phase stainless steel bar comprise C, Si, Mn, Cr, Ni, Mo, micro alloy elements, N, P, S and Fe. The micro alloy elements are one or more of Nb, V and Ti. Through smelting, continuous casting, hot rolling, cooling and solution treatment, the double-phase stainless steel bar is obtained. Under the premise that the production cost is basically unchanged, the yield strength of the double-phase stainless steel bar is improved, and thus the double-phase stainless steel bar can meet the 500 MPa-level stainless steel bar requirement; and meanwhile the corrosion resistance of the double-phase stainless steel bar is improved, and thus the double-phase stainless steel bar can meet the marine environment priority project requirement.

The invention discloses a preparation method of a cable sheath material of a mine cable. The method comprises the following steps: carrying out primary mixing on chloroprene rubber, chlorinated polyethylene and styrene butadiene rubber; adding polyurethane, stearinic acid, magnesium oxide, aluminum hydroxide, zinc oxide and organic montmorillonite into a primary mixed compound for secondary mixing; adding a vulcanizing agent, an antioxidant, N,N'-bis(furfurylidene)acetone, magnesium hydroxide and a promoter into secondary mixed compound for tertiary mixing; and carrying out sulfuration on a tertiary mixed compound to obtain the cable sheath material of the mine cable. The invention also brings forward a mine cable. The mine cable comprises a cable core, an insulation layer, a buffer layer and a sheath layer. The periphery of the cable core is wrapped by the insulation layer, the periphery of the insulation layer is wrapped by the buffer layer, and the periphery of the buffer layer is wrapped by the sheath layer. The obtained cable has the advantages of high strength and high toughness.

The invention provides polyelectrolyte hybrid hollow silica nano particles and a preparation method and application thereof. The insides of polyelectrolyte hybrid hollow silica nanoparticles are of hollow structures, and outer shell layers are hybrid structures of polyelectrolyte and silica; mesopores are formed in the shell layers. The preparation method comprises the steps of firstly synthesizing the silica nano particles with core-shell structures; then removing surfactant in the core-shell structures of the silica nano particles; finally etching the obtained mesoporous silica nano particles with the polyelectrolyte, thereby obtaining the polyelectrolyte hybrid hollow mesoporous silica nano particles. The preparation method is simple, and the obtained polyelectrolyte hybrid hollow mesoporous silica nano particles have good monodispersity, good biocompatibility and large specific surface area and pore volume, and can be applied to drug carriers and immunity adjuvant.

A method of preparing a plant cultivation medium by utilizing agriculture and forestry waste and the prepared cultivation medium are disclosed. The method includes 1) spraying the agriculture and forestry waste with water to adjust the water content of the agriculture and forestry waste, and 2) adding a fermentation catalyst, a microbe agent and brown sugar into the agriculture and forestry waste, fully stirring and fermenting. The plant cultivation medium is balanced in nutrition, high in nutrient contents, reasonable in structure, stable in physical properties, and convenient for plant absorption, meets plant growth needs and increases the survival rate of plant cultivation and ornamental effects.

The invention discloses an EVA hot melt adhesive with high bonding strength. The EVA hot melt adhesive with high bonding strength comprises the following raw materials in parts by weight: 100 parts ofEVA resin, 8-19 parts of SBS thermoplastic elastomer, 4-11 parts of hydroxyl-terminated polyurethane resin, 0.2-1.3 parts of polyacrylamide, 0.15-0.8 part of 2-vinyl-1-benzofuran, 11-15 parts of hydrogenated C5 petroleum resin, 5-13 parts of polyethylene wax, 1-3 parts of paraffin wax, 0.12-0.34 part of an antioxidant, 0.01-0.1 part of benzoyl peroxide, 0.01-0.07 part of europium acrylate and 13-28 parts of filler. The EVA hot melt adhesive with high bonding strength is high in bonding strength, good in high temperature resistance and excellent in aging resistance.

The invention provides a viscosity reduction type active macromonomer. The invention further provides a viscosity reduction type polycarboxylic acid water reducer. According to the viscosity reductiontype polycarboxylic acid water reducer provided by the invention, all ingredients and all functional groups are in mutual synergism; compared with viscosity reduction type polycarboxylic acid water reducers synthesized in the prior art, the viscosity reduction type polycarboxylic acid water reducer has the advantages that the viscosity reduction effect is superior, and the water reducing rate isnot affected; meanwhile, a large number of hydrophobic alkyl groups and ester groups are introduced into a PEG lateral chain, so that the HLB value is lowered, the surfactivity effect is enhanced, andthe viscosity reduction type polycarboxylic acid water reducer has a good reduction effect; and concrete doped with the product provided by the invention is low in shrinkage and does not crack. The viscosity-reduction hydrophobic functional groups are located on the lateral chain, the viscosity reduction effect of the water reducer can be regulated through the content of the viscosity-reduction functional groups, however, the content of dispersion groups is not affected, the dispersion effect on cement particles is not affected, and the dispersion and water reduction effects of the water reducer are not affected.

The invention provides a carbon fiber reinforced resin film and a preparation method thereof. The resin film comprises a resin matrix and a carbon fiber dispersed phase doped in the resin matrix. The surface of carbon fiber in the carbon fiber dispersed phase is modified with carbon nanotube. The preparation method comprises the following steps: S1, amino-modifying the surface of carbon fiber and then carrying out electrophoretic deposition of carboxyl-modified carbon nanotube to obtain carbon nanotube surface-modified carbon fiber; and S2, cutting the carbon nanotube surface-modified carbon fiber obtained in the S1 into segments, immersing each segment of carbon fiber part into a polymer solution, taking out, bonding two segments of carbon fiber, and drying so as to obtain the carbon fiber reinforced resin film. According to the invention, content of carbon nanotube on the surface of the carbon fiber can be effectively adjusted so as to further regulate mechanical strength of the carbon fiber doped resin film and achieve the reinforcing effect of the carbon fiber on the resin film. The resin film of the invention has a broad prospect in practical application.