59results about How to "High degree of compound" patented technology

The invention relates to a method for preparing a silicone-modified acrylate adhesive, which comprises the following: (1) a step of the pre-polymerization of a modified monomer, in which the modified monomer, a modified monomer catalyst, an emulsifying agent and deionized water are pre-polymerized to obtain a silicone pre-polymerization emulsion; (2) a step of emulsification, in which the silicone pre-polymerization emulsion and a basic monomer are emulsified to obtain an intermediate pre-emulsion; and (3) a step of the polymerization of acrylic ester, in which the intermediate pre-emulsion is polymerized with a basic monomer catalyst and the deionized water to obtain a finished product. The method adopts a fractional step method to emulsify according to the hydrophilicity of various monomers. During the emulsification step by step, a polymeric monomer with stronger hydrophobicity which is added first can be effectively and steadily dispersed under the condition of relatively higher concentration of the emulsifying agent, which strengths the stability of a monomer pre-emulsion. The grain diameter of the prepared adhesive emulsion is smaller and has narrower distribution, the emulsion system is also more stable, and various application performances are superior to those of adhesive products prepared by the prior method.

The invention relates to a building outer wall heat-insulating coating, in particular to a method for producing hollow microsphere modified fluoro-silicone emulsion and outer wall heat-insulating coating thereof. Hollow microspheres are added into aqueous solution containing vinylsilane coupling agent and uniformly stirred, so that hollow microsphere dispersion with the solid content of 20 percent to 60 percent is produced, and the hollow microsphere dispersion, deionized water, buffer and emulsifier are uniformly mixed and then added with fluorin, silicon acrylate mixed monomer and initiator to carry out reaction, so that the hollow microsphere modified fluoro-silicone emulsion is produced. The hollow microsphere modified fluoro-silicone emulsion is uniformly mixed with bactericide, dispersing agent, wetting agent, cosolvent and defoamer and then added with thickening agent, so that the outer wall heat-insulating coating is produced. The outer wall heat-insulating coating has the advantages of excellent comprehensive performance, outstanding heat-insulating, stain-resistant and weather-resistant properties and convenient construction, and therefore has a broad market prospect.

The invention discloses a preparation method for a high-density interposer for microelectronic system-in-package. The preparation method comprises the following steps of: 1, preparing a drectionally growing carbon nanotube bundle array, wherein the diameter of each carbon nanotube bundle is 0.5 to 30 microns, the gap of the carbon nanotube bundle is 0.8 to 100 microns, and the carbon nanotube bundle is 40 to 500 microns long; 2, depositing metal tungsten on the surface of the drectionally growing carbon nanotube bundle so as to form a conductor array; 3, melting borosilicate glass and compounding the melted borosilicate glass with the conductor array so as to form a compound body; and 4, grinding the upper surface and the lower surface of the formed compound body so as to expose the end of the carbon nanotube bundle deposited with the metal tungsten, and obtaining the high-density interposer for the system-in-package. The material adopted by the preparation method has low thermal expansivity and the process method is low in time consumption, so the prepared high-density interposer has the advantages of high density, high reliability and low cost.

The invention relates to a carbon-silicon composite material, a preparation method thereof and an application in a lithium ion battery. The carbon-silicon composite material provided by the invention comprises a carbon substrate, a catalyst and nanometer silicon grains and/or a silicon film uniformly attached to the carbon substrate. The method comprises the following steps: 1) preparing dispersion liquid of an organic additive and the catalyst; 2) uniformly mixing the carbon substrate with the dispersion liquid and then drying, thereby modifying the surface interface of the carbon substrate with the catalyst; and 3) transferring the carbon substrate modified with the catalyst into a CVD furnace, increasing the temperature under a protective atmosphere till reaching the reaction temperature, then introducing a silicon source for reacting, and uniformly attaching the nanometer silicon grains and/or the silicon film generated by catalytic decomposition to the surface interface of the carbon substrate, thereby obtaining the carbon-silicon composite material. The method provided by the invention has easiness in large-scale preparation; the silicon carbon compounding degree of the product is high; and the carbon-silicon composite material is an excellent negative electrode material for the lithium ion battery.

The invention relates to a transition metal oxide/binary carbon network positive electrode composite material and an aluminum-ion battery. Preparation of the positive electrode composite material comprises the steps of (1) adding a catalyst and a citric acid to water for mixing to obtain a catalyst precursor solution; (2) soaking a transition metal oxide into the catalyst precursor solution and carrying out separating and drying to obtain a transition metal oxide/catalyst precursor composite material; and (3) preparing a transition metal oxide/carbon nanotube composite material through chemical vapor deposition, soaking the transition metal oxide/carbon nanotube composite material into a graphene oxide dispersion liquid, carrying out separating and drying to obtain the transition metal oxide/carbon nanotube/graphene oxide composite material and then carrying out reductive heat treatment to obtain the transition metal oxide/binary carbon network positive electrode composite material. According to the positive electrode composite material provided by the invention, a binary carbon network coats the surface of the transition metal oxide, so that the conductivity and the structure stability of the positive electrode material are improved; the cycle performance of the electrode material is improved; and the transition metal oxide/binary carbon network positive electrode composite material can be applied to preparation of the high-performance aluminum-ion battery.

The invention provides a nano-composite catalyst and a preparation method thereof, belongs to the technical field of catalyzing, and solves the problem that the conventional load nano-composite oxide catalyst is low in nano-composite degree, and poor in catalyzing performance. The nano-composite catalyst is obtained by the flowing steps based on the condition that a surface-active agent is not used: firstly, reducing composite oxide crystal lattices or first metal ions mixed in the crystal lattices so as to obtain nano-metal granules containing first metal; and then introducing second metal into the surface of the first metal by Galvanic substitution reaction so as to obtain the nano-composite catalyst. Compared with the conventional catalyst, the nano-composite catalyst has more efficient catalyzing performance when being used for catalytic reaction of VOC (volatile organic compound) removal, automobile tail gas purification, formaldehyde removal, methane combustion, hydrogenation, hydrogenolysis, ammonia synthesis, ammonia decomposition, hydrocarbon synthesis, hydroformylation and the like.

The invention discloses a preparation method of a multi-core MgB2 superconducting wire. The method comprises: first, precursor power is prepared; second, the precursor power is placed in a Ta tube to prepare a tubulation complex; third, groove rolling is carried out on a single core wire; fourth, a NbTi/Cu composite rod and a plurality of single core wires are placed in an oxygen-free copper tubefor assembling so as to obtain a secondary composite rod; fifth, rotary swaging and drawing are carried out on the secondary composite rod, groove rolling is carried out and rotary swaging and drawing are carried out again, so that a multi-core wire is obtained; and sixth, heat treatment is carried out on the multi-core wire to obtain a multi-core MgB2 superconducting wire. According to the invention, processes of rotary swaging, drawing and groove rolling are combined and employed; therefore, not only is density of the multi-core wire improved, but also connectivity between crystal grains can be improved; it is beneficial to prepare a multi-core MgB2 superconducting wire with high performances; and the prepared wire has high mechanical strength and can bear great stress and strain without obvious reduction of the superconductive current carrying performance, so that a superconducting wire practical requirement can be well met.

The invention discloses a preparation method of pomegranate-shaped organic-inorganic nano-composite microspheres, which comprises the following steps: mixing an aqueous dispersion solution of silicon dioxide modified by proper amount of double-bond silane coupling agent in a coupling method with a phenylpropyl monomer, anionic emulsifier, non-anionic emulsifier and water, and stirring simply, so that a milky emulsified liquid is obtained; adding initiator to perform emulsion polymerization in the presence of silicon dioxide, so that the pomegranate-shaped organic-inorganic nano-composite microspheres with multiple silicon dioxide particles wrapped in phenylpropyl emulsion particles are obtained finally and are stably dispersed in the emulsified liquid. The preparation method has the advantages that the sources of the raw materials are extensive, the raw materials are easy to obtain, the preparation process is simple, and moreover, in the prepared pomegranate-shaped organic-inorganic nano-composite microspheres, the wrapping rate of silicon dioxide is high, the structure is neat and the placement stability is good. The adhesion property and the film forming performance of the composite microsphere particles are adjustable, the adhesive force and the transparency of the corresponding glue film are good, and the organic-inorganic nano-composite microspheres can be applied to the fields of coating, textile, rubber, plastics, biology, medicine and the like.

The invention discloses a molding and stamping technology of an upward flanging hole in a car floor part. The technology comprises the following steps that (1), drawing is carried out, wherein a panel veneer is drawn and molded to form a boss; (2), punching is carried out, wherein a bottom hole is punched out in the top face of the boss; (3), downward shaping is carried out; (4), trimming is carried out, wherein the trimming is finished on the same mould with the downward shaping procedure. According to the molding and stamping technology of the upward flanging hole in the car floor part, the upward flanging is changed into the downward shaping through the drawing molding, a shaping male mould and a material pressing board are located on an upper mould, a shaping female mould is located on a lower mould, as the shaping female mould is of a fixed structure, the mould structure replaces a traditional lower mould movable structure with the fixed structure of the lower mould, the fixed lower mould structure can be compounded with other trimming structures, the flanging procedure and other trimming procedures are finished on the same mould, a set of mould is omitted compared with a traditional technology, the compound degree of the mould structure is high, and therefore the production efficiency is improved, and the production cost is lowered.

The invention relates to a Beta/ZSM - 5 nano composite molecular sieves and preparation method thereof, which belongs to molecular sieve catalytic materials preparation area. The Beta/ZSM - 5 nano composite molecular sieves is a composite zeolite with medium and micro double holes and neat structure which is parallel arranged on nanoscale of beta zeolite and ZSM - 5 zeolite particles. The space of the parallel arrangement of beta zeolite and ZSM - 5 zeolite particles is medium hole. The Beta/ZSM - 5 nano composite molecular sieves is high in compound degree and good in crystallinity, and the micro hole passing path in unit volume is shortened. The mass transfer resistance of macromolecule catalytic reaction is reduced. The match of acid sites and micro hole structure of the two zeolites is realized. The catalytic activity and selectivity of the objective product is increased. The preparation method is easy. An ordered mesoporous carbon is used as hard template, and the removal of calcine is easy. The morphology and medium hole structure of the composite molecular sieves is controllable, the operation is convenient and the reproducibility is high.

The invention relates to the technical field of polypropylene fibers, in particular to a composite polypropylene fiber spinning device and a process thereof.The device comprises a housing, filter chambers, a strainer, a needle tube, a locking ring, a cone curling drum, a motor and a high-voltage electrostatic generator; the interior of the housing is symmetrically provided with two filter chambersand two inclined through holes, the inclined through holes pass through the filter chambers and through the whole housing, the two sides of the housing are provided with feeding holes, and the strainer is located at the bottoms of the filter chambers; and the needle tube perforates in the inclined through holes and both ends of the needle tube extend outside the housing.The invention has the following benefits: the produced composite polypropylene fibers are allowed to have a high compounding degree; the spinning device in the invention may not only prepare composite polypropylene but also prepare single-component polypropylene fibers; the inclination of the needle tube makes the distance of molten polypropylene flowing outside the housing from the housing is short so that the molten polypropylene may be compositely wound better; and the cone curling drum allows composite polypropylene fibers to be wound better without being scattered outside.

The invention provides a vinasse porous carbon/cobalt-nickel hydroxide electrode material and a preparation process thereof. The material is a vinasse porous carbon/cobalt-nickel hydroxide electrode material obtained by taking vinasse porous carbon as a substrate and loading cobalt and nickel elements on the surface of the vinasse porous carbon in a CoNiLDH form. The process comprises the following steps: carbonizing vinasse to obtain vinasse porous carbon, carrying out hydrothermal reaction on the vinasse porous carbon, cobalt nitrate hexahydrate, nickel nitrate hexahydrate, urea and polyvinylpyrrolidone, and finally, carrying out suction filtration, washing and drying to obtain the product. The prepared composite material is good in stability, high in compounding degree and high in specific capacity and rate capability, meanwhile, the substrate carbon material is from vinasse, the raw materials are wide in source and low in price, and the vinasse is turned into wealth.

The invention relates to a method for preparing copper oxide/polydopamine/reduced graphene oxide CuO/PDA/rGO. The method comprises the following steps: firstly, by taking DA (dopamine) as a reducing agent and graphene oxide as a raw material, regulating and controlling process conditions such as the ratio and the reaction time of the raw materials by using an ultrasonic chemical method, so as to prepare rGO/PDA with good conductivity; and by taking rGO/PDA as a conductive substrate, respectively developing two preparation methods for preparing CuO/rGO/PDA by using a one-step method and a two-step method, wherein the two-step method comprises steps of cleaning and freeze-drying the prepared rGO/PDA, mixing the rGO/PDA with a copper salt precursor of a certain ratio, and preparing the CuO/PDA/rGO by regulating and controlling ultrasonic process conditions; and the one-step method comprises steps of directly mixing a copper salt precursor solution with a reaction liquid of the rGO/PDA, and preparing the CuO/PDA/rGO by controlling the ultrasonic process conditions.

The invention discloses a method and a device for plastically connecting metal pipes and plates with one another, and belongs to the technical field of material connection. The device comprises a maledie, an edge pressing ring and a female die. The device and the method have the advantages that the pipes and the plates which are required to be connected with one another are prefabricated, then the pipes can be placed in the female die, the plates can be clamped by the female die and the edge pressing ring, the male die can revolve at the high speeds and can rotate along the axes of the pipesat the low speeds, and the plasticity of the pipes can be enhanced by the aid of friction effects; plastic deformation portions of the plates can be promoted by rolling of the male die to flow into annular grooves of the pipes, and accordingly the pipes and the plates can be quickly and efficiently plastically connected with one another in a green manner; the device is high in production efficiency, low in cost and suitable for mass production and is environmentally friendly; plastic forming modes are adopted by the method for connecting the metal pipes and the plates with one another by the aid of the device, the annular grooves are filled with materials for the plates, connectors are good in quality, high tensile stress can be borne, and the problem of difficulty in connecting plate metal with heterogeneous pipes difficult to weld can be solved by the aid of the method and the device.

The invention belongs to the technical field of lithium ion battery material and graphene composite material preparation, and specifically discloses a method for preparing a graphene composite lithium-rich positive electrode material through a solvent-assisted reducing agent method. The method comprises the following steps: (1) preparing a lithium-rich positive electrode material: taking an Ni-Co-Mn metal salt solution, sodium carbonate and an ammonia water solution into a reaction still to perform a coprecipitation reaction, cleaning and drying a precipitate, and after adding a lithium salt for ball-milling, carrying out high-temperature calcinations for several hours to obtain the lithium-rich positive electrode material; and (2) preparing a composite material: after dissolving oxidizedgraphene into a solvent, adding a reducing agent and the lithium-rich positive electrode material, and dropwise adding ammonia water to react so as to obtain the graphene composite lithium-rich positive electrode material. The graphene prepared in the invention is higher in purity and high in composition degree with the lithium-rich positive electrode material, the electronic conductivity of the material is improved through high conductivity and a special two-dimensional netted transmission structure, the polarization is reduced, and the rate capability and cycle performance of the lithium-rich positive electrode material are obviously improved.

The invention relates to the technical field of solid electrolyte material preparation, in particular to a method for preparing bismuth oxide-lanthanum molybdate composite electrolyte by a sol-gel self-combustion method. The method comprises the following steps that acidifying is carried out on a mixed solution of lanthanum nitrate and ammonium molybdate by using ethylene glycol, and then stirringand heating are performed to carry out sol-gel reaction to prepare lanthanum molybdate coarse powder; the lanthanum molybdate powder is purified by a self-combustion method, the lanthanum molybdate coarse powder is placed in a crucible to be placed into a muffle furnace for sintering; and solid-phase compounding is carried out on lanthanum molybdate and bismuth oxide, and steps of grinding, tabletting, and finally sintering are carried out to prepare the bismuth oxide-lanthanum molybdate composite electrolyte. When the bismuth oxide and lanthanum molybdate composite electrolyte with the doping ratio of 20% is sintered to 800 DEG C, the absorption peak of the bismuth oxide completely covers the absorption peaks of the lanthanum molybdate, and the composite degree is very high. The researchalso provides important experimental data for research and practical application of bismuth oxide.

The invention discloses a preparation method of ultra-light-color high-stability hydrogenated terpene-phenolic resin, which comprises the following steps: S1, pulverizing terpene-phenolic resin to obtain pulverized terpene-phenolic resin; s2, a solvent, a catalyst, a catalyst carrier and a stabilizer are added into the crushed terpene-phenol resin, then hydrogen is introduced, the hydrogen pressure is 10-30 MPa, the temperature is increased to 210-240 DEG C, a reaction is conducted for 2.5-8 h, and a post-reaction melt is prepared; s3, releasing the pressure, cooling, discharging, and filtering to remove the catalyst, the catalyst carrier and the stabilizer; and S4, distilling the filtered product to remove the solvent, thereby obtaining the ultra-light-color high-stability hydrogenated terpene-phenol resin. The terpene-phenolic resin prepared by the method is light in color and luster, good in stability and weather resistance, simple in preparation step and green, environment-friendly and pollution-free in preparation process.