131results about How to "Composite firm" patented technology

Disclosed is a production method of tin oxide and porous carbon composite lithium ion battery anode materials. The production method comprises the following steps of step 1, producing HKUST-1; step 2, activating HKUST-1, removing an organic solvent, adding a tin chloride solution by an injection method under the condition that the air is isolated and fully impregnating a pore passage, wherein the pore passage is occupied by the organic solvent; step 3, removing the solvent to obtain a precursor, performing 600 DEG C of firing of a muffle furnace under the protection of the argon gas, performing trimesic acid ligand carbonization, performing copper and tin reduction and alloying and obtaining a high dispersion of copper and tin alloy and carbon compound; step 4, selectively removing copper through nitric acid, converting tin oxide into tin dioxide to be stored in the pore passage in the form of nanocrystallization and obtaining the high performance composite materials. The tin oxide and porous carbon composite materials produced by the production method are firm in compositing, simple in operation and uniform in product; the tin oxide and porous carbon composite materials are large in capacity, high in current density, high in coulomb efficiency and high in rate performance current density when being applied to the lithium ion battery anode materials; the mass production can be achieved and the production cost is low.

Disclosed is a method of manufacturing density enhanced, bonded permanent magnets having the following properties: a. maximum energy product (BH)max up to 40% greater than that of traditional, mechanical, compacted, bonded permanent magnets, b. (BH)max up to 99% of theoretical, c. void ratio approaching 0 volume %, and d. use temperature from room temperature up to about 550° C., said method comprising the step of compacting a mixture of permanent magnet particulates and a binder using pulsed electromagnetic forces, where each pulse has a pulse time less than the thermal time constant of the permanent magnet particulate, and wherein said compaction is achieved without adversely affecting the binder or the structure of the permanent magnet particulates.

The invention provides composite stable microcrystal zirconium oxide ceramic mixed powder and a manufacturing process. Industrial-grade zirconium oxide powder is used as a main material and a suitable amount of cerium oxide (CeO), yttrium oxide (Y2O3), aluminum oxide and calcium carbonate (CaCO3) are used as stabilizing agents; all the components are prepared according to the following percentage by weight: 10-12% of the cerium oxide (CeO), 1-2% of the yttrium oxide (Y2O3), 3-8% of the aluminum oxide (Al2O3), 1-2% of the calcium carbonate (CaCO3) and the balance of the industrial-grade zirconium oxide powder; and the powder materials are mixed according to the proportion and the composite stable microcrystal zirconium oxide ceramic mixed powder is prepared by the steps of physically mixing, super-thinning, calcining, dispersing and granulating. With the adoption of a plurality of the stabilizing agents, the stable composition of zirconium oxide is realized, and zirconium oxide ceramic which is stably composited has better physiochemical performances.

The invention belongs to the technical field of composite modification of high molecular materials, and provides a filling polyfluortetraethylene composite interlayer slide board for a bridge support and a preparation method thereof. The filling polyfluortetraethylene composite interlayer slide board adopts a three-layer composite structure, wherein, the middle layer is a filling modified polyfluortetraethylene layer, the upper surface layer and the lower surface layer are pure polyfluortetraethylene layers, namely, the integral bearing capacity of the slide board is improved by mainly utilizing the filling modified polyfluortetraethylene layer in the middle layer with the characteristics of high bearing capacity and small creepage; and the surface layers are the pure polyfluortetraethylene layers, so that the slide board keeps the low frictional coefficient property of the pure polyfluortetraethylene. The filling polyfluortetraethylene composite interlayer slide board has the characteristics of low frictional coefficient, high bearing capacity, small creepage and small compressive deformation, can meet the requirement of high-speed railway bridge supports on frictional pair materials, can be widely applied to the frictional pair materials used as bridge support products, and can also be applied to other fields such as pipeline supports and the like.

The invention relates to a PVC card matrix material. The constituents in portion by weight of the card matrix material are: 80 to 20 portions of PVC resin, 80 to 20 portions of chloride-vinyl acetate resin, 1 to 6 portions of modified PVC resin, 1 to 2 portions of heat stabilizer, 1 to 2.5 portions of processing additive, 5 to 15 portions of titanium dioxide, 0 to 10 portions of nanometer calcium carbonate, 0.7 to 2.3 portions of lubricant, 3 to 12 portions of anti-impact modifier and 0.1 to 0.6 portions of bonding accelerator. The PVC card matrix material has a high dyne characteristic, and in printing process, the PVC card matrix material is strong in printing ink adsorption force and permeability, good in printing effect, printing color fastness as well as compounding fastness and difficult to peel.

The composite metal sheet, pure aluminum plate material, and the cooker bottom is compagination, the shape of the composite metal sheet is corresponding to the shape of the cooker bottom. The invention discloses a cooker with composite bottom and its production method. The cooker comprises cooker body made of stainless steel 304, and composite metal bottom. The composite metal bottom includes composite metal sheet made of composite metal plate materials composed of pure copper (T2) and stainless steel 409 or stainless steel 430 ; and pure aluminum (1050) plate material arranged between the composite metal sheet and cooker bottom of the cooker body. The composite metal sheet, pure aluminum plate material, and the cooker bottom is compagination connected, the shape of the composite metal sheet is corresponding to the shape of the cooker bottom. The method comprises selecting composite metal plate materials; punch-forming to obtain the composite metal sheet; punching the T2 layer to form concave patterned grooves; bonding the composite metal sheet, the 1050 plate material and the cooker bottom while heating; removing the T2 pure copper on the composite metal sheet bottom; and polishing the composite metal bottom to form pattern of stainless steel and T2. The cooker has good appearance and wide application.

The present invention discloses a glass fibre reinforcement and surface modification method in the material manufacturing field of the automotive upholstery. According to the method, firstly, a modified polyurethane waterborne emulsion is prepared. Secondly, a water-soluble polyester, the modified polyurethane waterborne emulsion, the gamma-propyl-trimethoxy-silane, the gamma-propyl tri-methoxy silane, the deionized water, an ammonium salt and a fatty acid amide are adopted as raw materials and are mixed up to prepare a dipping solution. After that, a continuous glass fiber mat is immersed in the dipping solution and is taken out of the dipping solution after being subjected to supersonic vibration and impregnation. The obtained continuous glass fiber mat is dried while being kept out of the sun, and then a reinforced and surface-modified continuous glass fiber mat. According to the invention, the gamma-propyl-trimethoxy-silane and the gamma-propyl tri-methoxy silane are adopted as coupling agents to react with polyurethane to generate a copolymer. In this way, the interface performance of the fiber mat with a resin matrix is improved. Products obtained through the above method can be used for manufacturing the automotive upholstery and automotive structural parts, which have the advantages of light weight, small thickness and low cost under the same intensity.

The invention discloses a preparation method of a composite photocatalytic material for fresh-keeping of fruits and vegetables and a process thereof, comprising preparation of sol through acidic hydrolysis with titanium ester as a raw material, or preparation of absorption type composite photocatalytic material through ultrasonic dispersion of nano titanium dioxide in water and water heating treatment after adding activated carbon fiber, wherein the titanium dioxide is the main catalyst of the absorption type composite photocatalytic material, and the activated carbon fiber is the carrier and the supporting mass thereof. The prepared material can transform ethylene, ethanol, acetaldehyde and the like generated in breathing of fruits and vegetables in processing plants and refrigerators for the fruits and vegetables, and hydrogen sulfide, ammonia and other common volatile contaminants generated in rotting of the fruits and vegetables into harmless materials through photocatalytic reaction under the ultraviolet irradiation. Simultaneously, the invention has the function of killing bacteria and microbes, thereby ensuring that the fruits and vegetables are fresh and safe to eat.

The invention relates to the field of chemistry and preparations, in particular to an unsaturated cationic lipid derivative, a preparation method thereof, and application in a plasmid delivery system.The cationic lipid takes electropositive lysine as a hydrophilic head group, amino acid as a skeleton and an unsaturated alkane chain as a hydrophobic tail chain, so that the cationic lipid has the advantages of good biocompatibility, high safety and the like. The synthesis method is simple and quick, low in synthesis cost and beneficial to large-scale production. The cationic liposome constructed on the basis of the unsaturated cationic lipid designed by the invention can stabilize the load plasmid without leakage, has better gene transfection efficiency on various tumor cells and primary cells than positive control Liponectamine2000, and has no obvious cytotoxic effect on cells. The invention provides a safe and efficient cationic lipid and non-viral vector platform for plasmid delivery.

The invention relates to a coconut fiber plate, in particular to a coconut fiber plate for a mattress, which comprises an upper layer, a middle layer and a lower layer which are compounded together through a hot air penetrating technology, wherein the upper layer and the lower layer comprise dual-component sheath core fibers and polyester hollow fibers, and the middle layer comprises dual-component sheath core fibers and coconut fibers. The coconut fiber plate for the mattress has the advantages of no formaldehyde release, no glue smell, difficulty in dampness and mildew, flat surface and uniformity in thickness.

The invention relates to a double-head welding and milling machine for steel aluminum composite rails, and belongs to special processing equipment for steel aluminum composite conductor rails of third rail ladle aluminum of an urban rail transit power supply system. The double-head welding and milling machine for the steel aluminum composite rails mainly comprises a base 1 with a rolling guide rail pair 18, a sliding plate 2 provided with a double-head welder 3 and a double-head milling machine 15 and a clamping device 32 with a cylinder 16, the sliding plate 2 moves by the aid of a power device 33 composed of a speeding regulating motor 4, a reduction gearbox 7 and the like. Two J-shaped or L-shaped stainless steel bars 31 are transversely fastened on the upper portion of each of two H-shaped aluminum sections 30 with the length of 15m or 18m, then the stainless steel bars 31 and the H-shaped aluminum sections 30 are transversely clamped by the clamping device 32, the sliding plate 2 is started to horizontally move from end to end, and the double-head welder 3 on the sliding plate 2 starts automatic MiG gas shielded welding to enable each J-shaped or L-shaped stainless steel bar to form a C-shaped whole. Two milling cutters 24 on the double-head milling machine 15 in the rear of the sliding plate 2 rotate coordinately to flatly mill weld joints 34 on the stainless steel bars so as to composite the stainless steel bars 31 and the aluminum sections 30, and accordingly steel aluminum composite conductor rails of ladle aluminum 19 are formed. The two working procedures of welding and milling are combined to be completed on the same complete machine, two steel aluminum composite rails can be welded and milled simultaneously, production efficiency is high, and steel and aluminum composite quality is good.

The invention discloses a sandwiched mortar heat-insulating/warm-keeping block which is a novel functional wall block having multiple building functions of energy saving, environment protection, heat insulation, warm keeping, fire prevention and noise absorption. The invention further discloses preparation and application of the sandwiched mortar heat-insulating/warm-keeping block. A warm-keeping/heat-insulating layer is arranged in the middle of the sandwiched mortar heat-insulating/warm-keeping block, mortar concrete is arranged at both sides of the warm-keeping/heat-insulating layer, and the sandwiched mortar heat-insulating/warm-keeping block is formed by carrying out vibration and extrusion forming on the warm-keeping/heat-insulating layer and the mortar concrete. The heat-insulatinglayer of the mortar warm-keeping block provided by the invention has stable structure, and the heat-insulating/warm-keeping layer is combined with the block into a whole and can not fall off easily. Thus, the prepared block is durable, thereby being a favorable novel wall material having the functions of heat insulation, warm keeping, fire prevention, energy saving, emission reduction and environment protection.

The invention discloses an X-ray development material compound device; comprising a working table, and a motor arranged on the working table; two sides of the working table are respectively provided with a coil handling apparatus and a rolling device driven by a motor, dressing and X-ray development material which are axially wound on the coil handling apparatus commonly wind around a compound compression roller on the working table through a cloth guider and are rolled by the rolling device. At least one ultrasonic wave compound head which can compound the dressing and X-ray development material which pass through the compound compression roller in a high-frequency way is arranged on the working table. The invention also relates to a relative compound method and medical dressing. The invention adopts an ultrasonic wave compound way, the compound head vibrate in a high-frequency way, so as to effectively heat and pressurize to the X-ray development material and the dressing, the compound is firm and the development material is not easy to fall off; the development material which takes PVC plastics as a carrier can be compounded, or the fiber linear development material mixed with permanent white can be compounded; in addition, the energy consumption is low and the invention is environmental-protection.

The invention provides a preparation method of a diamond-like carbon composite layer structure. The preparation method comprises the following steps of providing a substrate, and sequentially carryingout pretreatment, glow cleaning and ion etching cleaning on the substrate; placing the cleaned substrate in a deposition chamber, introducing argon gas, adjusting the pressure intensity of a vacuum chamber to 0.2-1.3 Pa, starting a first target material and a second target material, controlling the target power of the first target material to 30-70W, controlling the target power of the second target material to 30-70W, and depositing a prefabricated transition layer under the condition that the bias voltage of the substrate is 100-300V; taking out the sample deposited with the prefabricated transition layer, placing the sample in a container containing an etching solution, carrying out ultrasonic treatment, etching the prefabricated transition layer to form a transition layer with a micro-nano structure array on the surface so as to obtain an etched sample; and after cleaning the surface of the etched sample, placing the etched sample in the deposition chamber, and depositing a diamond-like layer on the surface of the transition layer of the etched sample.

The invention discloses an introduction and cultivation matrix for garden plants. The introduction and cultivation matrix contains a polyvinyl formal carrier, charcoal and a composted material, wherein the charcoal and the composted material are compounded in situ to the surface and/or pores of the polyvinyl formal carrier. Besides, the invention further provides an in-situ compounding method of the matrix. Polyvinyl formal in-situ compounded with the charcoal and the composted material is taken as the matrix and has the characteristics of light weight, excellent water-retaining property and air permeability and the like. A preparation method of the matrix is simple, and the prepared matrix has stable and excellent performance.