46results about How to "Stable physical structure" patented technology

The invention discloses a preparation method of baking-free high-strength fly ash ceramsite. The preparation method comprises four stages of preparation of a mixed alkaline excitant, uniform mixing ofthe excitant and raw materials, balling by a balling disc, and maintenance and molding, wherein the mixed alkaline excitant is prepared by mixing and crushing dried desulfurized gypsum, fly ash and quick lime according to a certain ratio. The baking-free high-strength fly ash ceramsite has the advantages of low construction cost, convenience in preparation, simple process, light weight, high strength and the like, and can replace part of sandstone to prepare lightweight aggregate concrete and produce prefabricated parts; the fly ash is used as a main raw material, cement, quicklime and desulfurizing gypsum are a mixed alkaline activator and a curing agent, and sodium silicate is a binder; the comprehensive utilization approach of industrial solid waste fly ash and industrial by-product gypsum is expanded while unfired high-strength fly ash ceramsite is prepared, and the concept of the green circular economy and the sustainable development of a building material is enhanced.

The invention relates to an eggshell supported nano-iron material for removing phosphate in water and a preparing method thereof, and belongs to the technical field of repairing water body pollution materials. The eggshell supported nano-iron material is formed by eggshell powder and nano-iron supported in inner pores and on the surface of the eggshell powder, the average particle size of the eggshell powder is 100-200 mesh, and the particle size of the nano-iron is 7-100 nm. The material can prevent the nano-iron from oxidizing better and improve the oxidation resistance, and the material can be used on a large scale after being dried, is high in reaction speed, good in dephosphorization effect, high in efficiency and easy to recover and treat, allows magnetic separation and achieves reuse of waste.

The invention relates to a nickel nanofiber membrane for membrane catalysis. The nickel nanofiber membrane is composed of a thermoplastic polymer nanofiber membrane and a nickel nano membrane deposited on the thermoplastic polymer nanofiber surface and comprises components in mass of 14%-75% of the thermoplastic polymer nanofiber membrane and 25%-86% of the nickel nano membrane. A preparation process adopts the method that thermoplastic polymers and cellulose acetate butyrate are subjected to blending melt spinning in proportion, thermoplastic polymer nanofibers are prepared through solvent extraction and dispersed and coated to the surface of a smooth substrate, and the thermoplastic polymer nanofiber membrane is taken down after drying. The nanofiber membrane is placed into a nickel bath with a certain formula for chemical nickel-plating after allergy and activating treatment and dried after taken out to obtain the nickel nanofiber membrane for membrane catalysis. The process is simple, the cost is low, and large scale preparation is easy to implement. The nickel nanofiber membrane for membrane catalysis has the characteristics that the porosity is high, the pore diameter is controllable, the flux is large, the catalytic activity is high, and separation is easy.

The invention discloses multistage drying equipment for traditional Chinese medicine processing and relates to the technical field of medicine processing. The multistage drying equipment comprises a main body shell. The top of the inner wall of the main body shell is fixedly connected with a fixed support; the bottom of the right side of the fixed support is fixedly connected with an electric heating pipe, and the position, located on the right side of the fixed support, of the top of the inner wall of the main body shell is fixedly connected with an electrified support; the bottom of the electrified support is fixedly connected with the surface of the right end of the electric heating pipe; and the left side of the bottom of the fixed support is rotatably connected with a clamp through arotating shaft, the top of the clamp is fixedly connected with a buckle, and the inner wall of the clamp is movably connected with a first rotating rod. According to the multistage drying equipment for traditional Chinese medicine processing, a motor achieves autonomous turning-over of traditional Chinese medicines through the gravity, the uniform thermal drying purpose is achieved through cooperation of the electric heating pipe, no redundant mixing structure is arranged inside a drying bin, the stable physical structure of the traditional Chinese medicines is protected while drying is conducted, and thus the medicinal property of the traditional Chinese medicines is not damaged.

The invention discloses a fixing and leveling device and method for repairing turbine blades through SLM. The device comprises a blade clamping mechanism, a first angle adjusting mechanism and a second angle adjusting mechanism. The device has two mutually orthogonal rotational degrees of freedom, and can clamp the turbine blades and adjust the posture of the turbine blades in two mutually orthogonal directions. According to the device, the large rotation amount is converted into the small rotation amount through a transmission structure, and fine angle adjustment can be achieved; and moreover, scale marks are arranged, so that quantitative angle adjustment can be realized. The device is simple in structure, easy and convenient to operate and disassemble, and capable of conveniently and rapidly achieving clamping and posture adjustment of the turbine blades.

The invention relates to a preparation method of a semiconductor composite material based on chemical vapor deposition. In a chemical vapor deposition reaction chamber, a semiconductor material is deposited on a substrate by a chemical vapor deposition method using a semiconductor synthetic raw material to obtain a target product with a coupling interface between the semiconductor material and thesubstrate. Compared with the prior art, the metal semiconductor composite material with the specific coupling interface is prepared by chemical vapor deposition, and the material has excellent conductivity and surface structure properties of a substrate metal material, and the electrocatalytic performance of the material is further improved due to the special coupling interface.

The invention belongs to the technical field of powder metallurgy, and particularly relates to a high-wear-resistance powder metallurgy material and a preparation method thereof. The product developed by the invention comprises aluminum nitride, silicon nitride, silicon carbide and graphene. The aluminum nitride, the silicon nitride and the silicon carbide are dispersed among graphene layers. Adjacent lamellar structures in the graphene molecular structure are bridged through silicon carbide. The preparation method comprises the following steps of: dispersing graphene oxide in absolute ethyl alcohol, adding organic silicon, organic aluminum and fatty acid, carrying out heating reflux reaction, filtering, washing and drying to obtain a precursor; and putting the precursor in a nitrogen atmosphere, slowly heating to 1600-1800 DEG C, carrying out heat preservation for reaction for 6-8 hours, cooling, and discharging to obtain the product. The product obtained by the invention has excellent wear resistance.

The invention relates to a hyperbranched polysiloxane multilayer film and a preparation method thereof. The following process steps are adopted: 1) After reacting hyperbranched polysiloxane, solvent, 107 glue and catalyst at 60-80°C for 12 hours, Form a casting film feed solution, and apply the gained casting film solution on the polyvinylidene fluoride porous base film to obtain a hyperbranched polysiloxane film; 2) vinyltriethoxysilane, solvent, 107 glue, and catalyst After reacting at 60-80° C. for 6 hours, a casting film material solution is formed, which is coated on the above-mentioned hyperbranched polysiloxane film to obtain a hyperbranched polysiloxane multilayer composite film. The hyperbranched polysiloxane multilayer composite membrane prepared by the present invention has a three-layer membrane structure, the bottom layer is a polyvinylidene fluoride ultrafiltration membrane supported by non-woven fabric, the middle layer is a hyperbranched polysiloxane membrane, and the top layer is separated The layer is an extremely thin polysiloxane film. The hyperbranched polysiloxane multilayer composite membrane prepared by the invention has a gradient distribution of porosity from top to bottom, which greatly improves the performance of pervaporation separation of butanol in water.

The invention discloses a printable environment-friendly credential card body. The printable environment-friendly credential card body is characterized in that the printable environment-friendly credential card body is of a symmetrical composite layer structure, is formed in a hot-pressing way, and sequentially comprises a PET (polyethylene terephthalate) film heat transfer printing processing layer, a PET protective support layer, a PET esterification reaction layer, a PETG (polyethylene terephthalate glycol) connecting layer, a PETG printing layer, a PETG core material layer, a PETG printing layer, a PETG connecting layer, a PET esterification reaction layer, a PET protective support layer and a PET film heat transfer printing processing layer from top to bottom. The printable environment-friendly credential card body is reasonable in structure, easy to operate, environment-friendly, attractive in appearance and high in anti-counterfeiting performance, and credentials can be made and printed on the spot; the card body is high in firmness, high in physical and chemical stability and image accuracy and detail expression, and has good personalized printing effects; after the credentials are synthesized, the credentials have high wear resistance and durability, technical indexes of peeling, torsion, bending and the like completely meet legal credential making standards and requirements, and the potential safety hazard that personal information on the credentials is falsified and replaced is completely eradicated; and the card body has an actually adhesive-free card body structure, and is high in finished product ratio and environment-friendly.

The invention relates to a production process for producing a run-resistant anti-snagging underwear by adopting a cylinder loom. The production process comprises the following steps of covering yarns;weaving; sewing; dyeing; shaping; clipping and stitching. According to the production process provided by the invention, without increasing the input of novel equipment, the underwear is produced bydirectly adopting a common cylinder loom; and in accordance with the principle of attractiveness in price and quality, the breathable and warm underwear capable of being worn for all seasons, coveringthe body wrinkles and spots, and tightening skin can be manufactured. Secondly, the underwear gives the body light shape and balances the body curve. Again, the underwear has anti-snagging and run-resistant functions, the service life of the underwear is prolonged, and the cost performance of the underwear is further improved.

The invention relates to a preparation method of a metal-layered double hydroxide composite electrode material. The preparation method comprises the following steps: putting a metal substrate into a hydrothermal reaction kettle, adding nitrates of two metals and urea, and carrying out hydrothermal reaction to obtain a target product. Compared with the prior art, a self-supporting electrode with the interface layer-enhanced alloy/double hydroxide nanosheet array is prepared by utilizing a hydrothermal method in the invention, the material has the excellent conductivity of a substrate metal material and the multifunction of a surface vertical nanosheet array structure, and meanwhile, the special interface layer of the material generates an enhancing effect, so that the starting overpotentialrequired by the reaction is greatly reduced, and the oxygen generation electro-catalytic performance of a composite-structure material is greatly improved.

The invention discloses a preparation method of a zinc oxide gas desulfurizing agent. The preparation method comprises the following steps of: weaving fiber filaments into a three-dimensional full-five-direction woven part with beamed yarns by adopting a four-step three-dimensional weaving technology; mixing a Zn(NO3)2.6H2O solution with the concentration of 0.10-0.25 mol/L and an NH3.H2O solutionwith the volume fraction of 25% according to any proportion to obtain a hydrothermal solution; putting the obtained three-dimensional full-five-direction woven part into the hydrothermal solution, and carrying out hydrothermal reaction in a room-temperature environment to generate a zinc oxide nano structure; and carrying out high-temperature roasting treatment on the generated zinc oxide nanostructure to obtain the zinc oxide gas desulfurizing agent. The process route of the desulfurization material is simple and easy to implement, and can meet the performance requirements of desulfurizationagent industrialization; and the desulfurizing agent adopts a fiber material with high flexibility and rich porosity as a carrier to construct a multistage micro-pore structure of the desulfurizing agent, so that the adsorption capacity and desulfurization reaction activity of the desulfurizing agent can be improved.

The invention discloses an antibacterial biological isolation mask fabric capable of being disinfected and washed and repetitively used, and a preparation method thereof. A mask body is included; themask body is composed of an inner layer, a middle layer and an outer layer; the inner layer is made of an ultrafine fibre PP stretch yarn textured 75D yarn material; the middle layer is made of a nanometre bamboo charcoal 50 D yarn material; the outer layer is made of a silver iron antibacterial yarn 50 D yarn material; and three types of yarns form a multi-layer composite fabric through interlacing of longitude and latitude. According to the antibacterial biological isolation mask fabric capable of being disinfected and washed and repetitively used, and the preparation method thereof in the invention, the problem that the filter efficiency of a disposable protective mask is decreased and directly loses efficiency after being worn for 4 hours can be thoroughly solved; the antibacterial biological isolation mask in the invention is steady in physical structure, constant in density, and long-acting and steady in filter effect, and can be repetitively washed by water, washed by a machine,and directly disinfected by alcohol; expenditure on epidemic prevention consumption during a pandemic can be reduced immediately; the social cost can be reduced; the economic benefit can be increased; and the enterprise and individual expenditure burden can be reduced.

The invention discloses a titanium dioxide/ruthenium monatomic noble metal nano catalytic material for degrading pollutants and a preparation method thereof. The preparation method comprises the steps that RuPc, 2-methylimidazole and zinc nitrate serve as precursors to prepare a ruthenium monatomic metal material, then the ruthenium monatomic metal material is subjected to in-situ compounding with titanium dioxide through solvent heat treatment, and finally, the titanium dioxide/ruthenium monatomic noble metal nano catalytic material is prepared and shows excellent photocatalytic degradation performance.

The invention provides a gold interdigital micro electrochemical sensor and a manufacturing method thereof. The gold interdigital micro electrochemical sensor comprises a monocrystalline silicon substrate with a first set thickness, wherein a silicon dioxide layer with a second set thickness is arranged on the monocrystalline silicon substrate; and an interdigital electrode pair is arranged on the surface of the silicon dioxide layer, and the interdigital electrode pair comprises a nano titanium bonding layer of 10-20 nm and a nano gold sensing layer of 50-150 nm from inside to outside. According to the manufacturing method, a manufacturing method of integrated circuit micro-nano machining is adopted, silicon dioxide serves as an insulating substrate, titanium and gold serve as a bonding layer and a sensing layer respectively, and the sensor is prepared through electron beam evaporation and metal stripping processes. The gold interdigital micro electrochemical sensor which is complete in structure and morphology and sensitive in electrochemical property is obtained in batches under the treatment of multi-organic reagent washing and vacuum low-temperature drying process, and the gold interdigital micro electrochemical sensor is more stable in physicochemical property, sensitive in response and resistant to strong acid, strong alkali and a plurality of organic solutions.

The invention discloses a polisher discharge rack with a baffle plate. The rack comprises a discharge rack main body, a light sensor and a fixing frame, one side of the discharge rack main body is provided with the baffle plate, one side of the light sensor is provided with a falling proof plate, the other side of the discharge rack main body is provided with a counter, the inside of an operationbox is provided with a circuit breaker, the outer surface of the operation box is provided with a control panel, one side of the operation box is provided with a driving motor, the lower end of a fixing frame is provided with a hydraulic column, an anti-vibration base and the discharge frame main body are fixedly connected, and the outer surface of the discharge rack main body is provided with anemergency stop button. The polisher discharge rack with the baffle plate is provided with a rubber cushion layer, the baffle plate and the hydraulic column, can prevent damages caused by a top material mechanism directly contacting materials, and can prevent wear on the surface caused by discharging products falling down, the height of the discharge rack can be effectively adjusted, and the polisher discharge rack is suitable for different working conditions, and brings better use prospects.

The invention relates to the technical field of fuel oil additives, in particular to an additive for improving fuel efficiency and a preparation method thereof. The additive for improving the fuel efficiency is prepared from the following components in percentage by weight: 100 g to 190 g of vegetable oleic acid, 25 g to 50 g of dimethyl propyl, 90 g to 120 g of sorbitol liquid, 40 g to 70 g of high-purity oleamide, 60 g to 90 g of castor oil, 10 g to 30 g of n-caprylic alcohol, 70 g to 100 g of a preservative, 90 g to 120 g of first-grade pure water, 70-100 g of sorbitan monooleate, 35-50 g of fatty acid and 50-80 g of an emulsifying agent. According to the invention, oil dirt in an oil path is automatically cleaned by fuel oil, the combustion sufficiency is improved, the components are non-toxic and harmless and are not flammable and explosive, and the additive has high use safety and reduces the emission of automobile exhaust pollutants.

The invention discloses a high-temperature-resistant graphene heating plate, which comprises a microcrystalline glass plate, a flaky graphene sintering layer and conductive parts. The flaky graphene sintering layer formed by sintering a flaky graphene mixture is integrally arranged on one side of the microcrystalline glass plate. The two groups of conductive parts which are not in contact with each other are arranged on the surface of the flaky graphene sintering layer. Because the flaky graphene sintering layer fixed on one side of the microcrystalline glass plate after sintering has a stablephysical structure, the structure is very stable, the combination with the microcrystalline glass plate is tighter, and the graphene heating plate is not easy to burst at high temperature. Glue is not used for bonding, and the problem of glue melting at high temperature is avoided. Tests prove that the heating temperature of the graphene heating plate produced by the method can be up to 550-600 DEG C. Compared with the prior art, the heating temperature of the graphene heating plate is greatly improved.