68results about How to "Ease of large-scale mass production" patented technology

The invention discloses a flexible electromagnetic wave shielding and absorbing cloth and a production method thereof. The flexible electromagnetic wave shielding and absorbing cloth comprises a four-layer structure which sequentially comprises a chemical fiber fabric layer, an electromagnetic wave shielding layer, an electromagnetic wave absorbing layer and a flame-retardant and waterproof layer from bottom to top. The production method of the flexible electromagnetic wave shielding and absorbing cloth comprises the following steps: 1, drying the chemical fiber fabric; 2, preprocessing the chemical fiber fabric obtained in step 1; 3, plating the chemical fiber fabric obtained in step 2 with a layer of meta; 4, coating the metal layer plated chemical fiber fabric obtained in step 3 with a layer of a wave absorbing coating; and 5, coating the wave absorbing layer coated chemical fiber fabric obtained in step 4 with a layer of a flame-retardant and waterproof coating. The electromagnetic wave shielding and absorbing cloth has the advantages of wide wave absorption frequency band, high absorption intensity, flame retardation and waterproofing property, good flexibility, light weight and thin thickness, and can be applied to electromagnetic interference and electron strike prevention in the fields of electronic products and military devices.

The invention discloses a high-purity ultra-fine torispherical silicon micro-powder prepared from natural powder quartz ore and a preparation method of the silicon micro-powder. The preparation method comprises the following steps: by taking the cheap natural quartz ore as a raw material, adding inorganic dilueted acid which exerts the grinding aid effect in an ultra-fine grinding machine so as to prepare ore slurry, and regulating the pH of the ore slurry to 2-3; by taking a zirconia ball as a ball-milling medium, grinding for 2-4 hours in the ultra-fine grinding machine; when the power of which the particle diameter is 2mu m reaches 60%-90% in the high-purity ultra-fine silicon powder, adding reductant sodium hydrosulfite and complexing agent oxalic acid, wherein the dosage of the reductant sodium hydrosulfite is 1-2% of weight of ore powder, and the dosage of the complexing agent oxalic acid is 0.5-1-5% of weight of ore powder; and after continuing to grind for a while, washing, filtering and drying. An ultrafine processing technology and a purification and bleaching technology are simultaneously achieved in the same equipment; and the preparation method has the advantages of simple process, short flow, low cost and obvious purification effect, and is easy to carry out large batch production on scale; and the product can be applied to the fields of electronics, electricians, optical fibers, lasers, aerospace and the like.

The invention provides an electroluminescent device with high light emitting efficiency, which comprises a transparent substrate, a light scattering layer positioned on the transparent substrate, a surface smooth layer positioned on the light scattering layer and an electroluminescent layer positioned on the surface smooth layer. The electroluminescent device has the following technical effects: 1, light scattering particles are exposed out of an adhesive, each of the light scattering layer and the surface smooth layer is provided with a waved surface, light emitted from the light emitting layer is directly scattered by the waved light scattering particles after passing through the waved surface smooth layer with a high refractive index, parts of light rays which are less than a critical angle are directly emitted out, the light rays which are greater than or equal to the critical angle are reflected back, are reflected again by a reflection electrode layer, passes through the surface smooth layer and are scattered again, another part of light is extracted, and extraction is repeatedly carried out, so that the light extraction efficiency is greatly improved, and the waved surface of the light scattering layer increases an effective light emitting area; 2, the electroluminescent device adopts is simple in preparation process and facilitates scale mass production.

The invention discloses a light-weight wave-absorbing material adopting an interlayer structure and a preparation method of the wave-absorbing material. The light-weight wave-absorbing material adopting the interlayer structure comprises a structural wave-absorbing layer and wave-absorbing polymer sheets, wherein the wave-absorbing polymer sheets are attached to the upper surface and the lower surface of the structural wave-absorbing layer, and the structural wave-absorbing layer comprises a wave-absorbing polymer structural part and wave-absorbing woven fabric attached to the inner surface and the outer surface of the wave-absorbing polymer structural part. The wave-absorbing polymer structural part comprises nano absorbents and a polymer matrix, the nano absorbents are uniformly dispersed in the polymer matrix, and the wave-absorbing woven fabric is formed by weaving wave-absorbing fiber filaments with the nano absorbents uniformly dispersed in the fiber matrix and another kind of fiber filaments. The light-weight wave-absorbing material has the characteristics of high absorbing strength, light weight, small thickness, good environment adaptability, good processing performance, simple process, convenience in operation, economical performance, environmental protection and the like.

The invention provides an antistatic filtering material used at middle and high temperatures and a preparation method thereof. The antistatic filtering material comprises a non-woven cloth base and a surface layer. The non-woven cloth base and high temperature-resistant chemical fiber filaments of which surfaces are plated with metal layers are blended to form an antistatic base cloth layer. The preparation method comprises the following steps of drying the high temperature-resistant chemical fiber filaments, carrying out physical oil removal, carrying out pre-treatment, carrying out metal layer plating coating, blending the high temperature-resistant chemical fiber filaments and the non-woven cloth base, and carrying out blending, opening, scotching, netting, non-woven cloth base addition in the middle, needling and setting on a non-woven cloth surface raw material to obtain the antistatic filtering material. The antistatic filtering material has the advantages of good antistatic property, good uniformity, high temperature resistance and good bonding force, and can be used for middle and high temperature pocket-type dedusting in the fields of garbage burning, thermal power generation, steel and chemical engineering. The preparation method has simple processes, is safe, reliable, economic and environmentally friendly and can be massively produced easily.

The invention provides a preparation method of a flexible self-supporting composite electrode of lithium titanate, which comprises the following steps: providing an inorganic titanium source, a lithium source, a solution containing hydroxide ions and hydrogen peroxide, and mixing to prepare a solution containing lithium titanium peroxide complex. A lithium-containing titanium peroxide complex solution is added with a hydrophilic carbon material, and after hydrothermal reaction, a self-supporting precursor material is directly for or prepared by molding treatment. A lithium titanate flexible self-supporting composite electrode is prepared by drying self-supporting precursor material and calcine in a reducing atmosphere.

The invention provides a filtering material for the metallization of non-woven base fabrics for normal temperature and a preparation method of the filtering material. The filtering material comprises a non-woven fabric, namely a base fabric, and a surface layer, wherein the non-woven base fabric and the surface layer are fixed through needling, and both surfaces of the non-woven base fabric are coated with two or more layers of metal. The preparation method of the filtering material comprises the procedures of carrying out baking, physical deoiling, pretreatment and metal layer coating on the non-woven base fabric, needling with a non-woven surface layer raw material and typing. The anti-electrostatic filtering material prepared by the preparation method has the advantages of good static electricity preventing property, good uniformity, good binding force and the like and can be applied to the normal-temperature bag type dust removal of the fields of garbage incineration, thermal power generation, cement, iron and steel, chemical industry, metallurgy and the like.

The invention belongs to the technical field of new materials, and discloses an electromagnetic shielding film without conductive particles and a preparation method thereof. The structure of the electromagnetic shielding film is a carrier film, an insulating layer, a shielding layer, a covering layer, an adhesive layer, and a protective film in sequence. Holes of different sizes are distributed on the surface of the covering layer; the shielding layer is composed of a plane metal and a convex metal, wherein the plane metal is compounded on the insulating layer, and the convex metal is distributed in the holes of the covering layer and is in contact with the plane metal The electromagnetic shielding film without conductive particles prepared by the method of the present invention has the characteristics of thin thickness, high shielding performance, low grounding resistance, strong cohesiveness, and low cost, and can meet the needs of the integration of electronic products while being lighter and lighter. The urgent need for thin development.

The invention discloses a heat conducting adhesive and a preparation method thereof. The heat conducting adhesive is prepared from the following raw materials in percentage by weight: 65 to 80 percent of acrylic acid glue, 10 to 25 percent of modified aluminum nitride, 0.05 to 5 percent of oxidized graphene, 0.5 to 3 percent of tackifying resin and 0.5 to 2 percent of a dispersing agent. According to the heat conducting adhesive disclosed by the invention, the addition volume of heat conducting filler can be reduced under the situation that higher heat conducting coefficient is obtained, and economy and environment protection are realized; a heat conducting adhesive product has the characteristics of good heat conducting uniformity, high heat conducting coefficient, high adhesion strength, high temperature resistance, insulation and the like. The preparation method disclosed by the invention is simple, safe and reliable in technology, is convenient in operation, is economic and environmentally friendly and is easy in large-scale batch production.

A method is provided for producing a highly porous substrate. More particularly, the present invention enables fibers, such as organic, inorganic, glass, ceramic, polymer, or metal fibers, to be combined with binders and additives, and extruded, to form a porous substrate. Depending on the selection of the constituents used to form an extrudable mixture, the present invention enables substrate porosities of about 60% to about 90%, and enables process advantages at other porosities, as well. The extrudable mixture may use a wide variety of fibers and additives, and is adaptable to a wide variety of operating environments and applications. Additives can be selected that form inorganic bonds between overlapping fibers in the extruded substrate that provide enhanced strength and performance of the porous substrate in a variety of applications, such as, for example, filtration and as a host for catalytic processes, such as catalytic converters.

The invention provides a batch synthesis method for green fluorescent nano carbon clusters. The method comprises the following steps: 1) taking reductibility organic micromolecules as a carbon nano cluster precursor; 2) employing amino acid and polypeptide or soluble biomacromolecules as an auxiliary reagent; 3) mixing the carbon nano cluster precursor and the auxiliary reagent, dissolving a mixture in an organic polar solvent, adding phosphoric acid for reacting for a while at constant temperature, stopping the reaction after the color of a reaction solution is changed from transparent to brown; and 4) centrifuging the reacted mixing solution, removing the impurity, gradually dialyzing and separating, removing an unreacted reactant and a few of monodisperse carbon dots, through rotary-evaporation concentration and freeze drying processing, obtaining the high-purity fluorescent nano carbon clusters powder. According to the invention, one-step batch synthesis of fluorescent clusters is realized, further passivation processing is not required, and the fluorescent quantum yield of the prepared nano carbon clusters is higher than that of the single carbon dot prepared with same batch.

A chemical formula of a ternary piezoelectric material with a high curie temperature is (1-x-y)BiFeO3-xLiNbO3-yPbTiO3+amolCeO2+bmolSb2O3, wherein x is equal to 0.02-0.10, y is equal to 0.28-0.35, a is equal to 0.01-0.05, and b is equal to 0.01-0.05. A preparation method of the ternary piezoelectric material comprises the steps of weighing analytically pure substance powder in the formula according mass mole numbers in the chemical formula for first ball milling, presintering, synthesizing and grinding for second ball milling after the first ball milling and drying, performing pelleting, plastic removal, sintering, machining, electrode treatment, oil bath polarization in dimethicone on powder of the second ball milling, and cleaning to form a ternary piezoelectric material element. The ternary piezoelectric material is greater than 120pC/N in d33, is up to 0.45 in kp, exceeds 600 DEG C in Tc, and can meet a piezoelectric device application in a hot environment, a technology is simple, the cost is low, and the scale production is facilitated.

The invention belongs to the technical field of new materials, and specifically relates to a fiber-reinforced copper-graphite heat dissipation film and a preparation method thereof. The fiber-reinforced copper-graphite heat dissipation film includes a fiber-reinforced graphite layer, a metal transition layer and a metal copper layer; the prepared by the present invention The fiber-reinforced copper-graphite heat dissipation film has good mechanical properties, good temperature resistance, low specific gravity, strong binding force, strong reworkability, good thermal conductivity in all directions, and the preparation method is simple, easy to operate, economical and environmentally friendly.

A preparation method of an aqueous conductive paste is characterized in that the formula is composed of the following components in mass ratio: 100 parts of deionized water; 1 to 5 parts of polythiophene derivative, 1 to 6 parts of polyvinylamine, 0 to 3 parts of tetrakis (dimethylamine) ethylene, 0 to 5 parts of N-type inorganic conductive filler, 0-3 parts of dispersant, 0 to 0.1 part of defoaming agent, wherein the content of the polydiallyldime thylammonium chloride is not lower than the content of the added polythiophene derivative, the content of dispersant is not less than 1/2 of the content of inorganic conductive filler, and the preparation method comprises adding functional components into deionized water, stirring at room temperature to 50 DEG C for 8 to 12 hours to obtain stable conductive dispersion paste, spin coating or scraping the pasteon the surface of the material, and air drying at room temperature to 70 DEG C to obtain a conductive coating. All raw materials of theinvention are common and cheap chemicals, so that large scale volume production is facilitated. The coatings are N-type conductive and can be used in flexible thermoelectric devices, flexible optoelectronic devices and other fields.

The invention provides a TiN/C coated Li2TiO3 tritium breeding agent and a preparation method and a preparation device system thereof. The preparation method comprises the following steps: (1) enabling Li2TiO3 particles to be in a fluidized state in a protective atmosphere; (2) on the basis that the step (1) is continuously carried out, mixing the Li2TiO3 particles and carbon source gas to obtainC coated Li2TiO3 particles; (3) on the basis that the step (1) is continuously carried out, mixing the C coated Li2TiO3 particles obtained in the step (2), titanium source gas and nitrogen source gas;and (4) carrying out gas-solid separation to obtain the TiN/C coated Li2TiO3 tritium breeding agent. The device system comprises a stock bin, a fluidized bed coating device, a titanium source gasification device, a product collection device and a tail gas treatment device. The corrosion of Li2TiO3 to a cladding material is overcome, and meanwhile, the stability of the lithium-based ceramic tritium breeding agent in a He-H2/H2O environment is improved.

The invention provides a TiN/C coated Li4SiO4 tritium breeding agent and a preparation method and a preparation device system thereof. The preparation method comprises the following steps: (1) enabling Li4SiO4 particles to be in a fluidized state in a protective atmosphere; (2) on the basis that the step (1) is continuously carried out, mixing the Li4SiO4 particles and carbon source gas to obtainC-coated Li4SiO4 particles; (3) on the basis that the step (1) is continuously carried out, mixing the C-coated Li4SiO4 particles obtained in the step (2), titanium source gas and nitrogen source gas;and (4) carrying out gas-solid separation to obtain the TiN/C coated Li4SiO4 tritium breeding agent. The device system comprises a stock bin, a fluidized bed coating device, a titanium source gasification device, a product collection device and a tail gas treatment device. The corrosion of Li4SiO4 to a cladding material is overcome, and meanwhile, the stability of the lithium-based ceramic tritium breeding agent in a He-H2/H2O environment is improved.

The invention provides a C/TiN coated Li4SiO4 tritium breeding agent and a preparation method and a preparation device system thereof. The preparation method comprises the following steps: (1) enabling Li4SiO4 particles to be in a fluidized state in a protective atmosphere; (2) mixing the Li4SiO4 particles, titanium source gas and nitrogen source gas on the basis that the step (1) is continuouslycarried out to obtain TiN-coated Li4SiO4 particles; (3) mixing the TiN-coated Li4SiO4 particles obtained in the step (2) with carbon source gas on the basis that the step (1) is continuously carried out; and (4) carrying out gas-solid separation to obtain the C/TiN coated Li4SiO4 tritium breeding agent. The device system comprises a stock bin, a fluidized bed coating device, a titanium source gasification device, a product collection device and a tail gas treatment device. According to the preparation method, the corrosion of Li4SiO4 to a cladding material is overcome, and meanwhile, the stability of the lithium-based ceramic tritium breeding agent in a He-H2/H2O environment is improved.

The invention provides a C-coated Li4SiO4 tritium breeding agent and a preparation method and a preparation device system thereof. The preparation method comprises the following steps: (1) enabling Li4SiO4 particles to be in a fluidized state in a protective atmosphere; (2) on the basis that the step (1) is continuously carried out, mixing Li4SiO4 particles and carbon source gas; and (3) carryingout gas-solid separation to obtain the C-coated Li4SiO4 tritium breeding agent. The preparation device system comprises a stock bin, a fluidized bed coating device, a tail gas treatment device and a product collection device. The corrosion of Li4SiO4 to a cladding material is overcome, and meanwhile, the stability of the lithium-based ceramic tritium breeding agent in a He-H2/H2O environment is improved.

The invention provides a controllable preparation method of a carbazole bromo-compound. The controllable preparation method is conducted in the nitrogen atmosphere and comprises the following steps of: (1) dissolving the carbazole in N, N-dimethyl amide, and preparing solution A with the concentration being 1.996mol/L; dissolving N-bromosuccinimide in the N, N-dimethyl amide, and preparing solution B with the concentration being 1.1976mol/L, wherein the ratio between the used amount of the N, N-dimethyl amide in the solution B and the used amount of the N, N-dimethyl amide in the solution A is 20:3; (2) controlling the reaction temperature to be 5 DEG C, and slowly dripping the solution B into the solution A; (3) after the dripping is finished, reacting for 10 hours under the room temperature; (4) pouring into distilled water, generating white precipitates immediately, filtering the white precipitates, washing the precipitates for three times and drying at the temperature of 1000 DEG C to obtain a primary product; and (5) using dichloromethane to carry out recrystallization and purify the primary product in the step (4) and obtaining 1, 3, 6, 8-tetrabromo carbazole. The controllable preparation method provided by the invention has the advantages of mild reaction condition with easy implementation, high yield, easy separation and purification of the product, no toxicity and harm, no pollutant emission and environmentally friendly and energy-saving effects.

The invention discloses a solar cell module used in a building field and a preparation method thereof. The solar cell module comprises a base, a power generation layer and a protection layer; the power generation layer is arranged on the base, and the protection layer covers the power generation layer; the base is glass, a metal plate, a cement-based plate, a flexible plastic film, ceramic tiles and tiles; and the protection layer has a weighing mean transmittance of 0-79% in the wavelength range of 300-1300nm. The preparation method comprises the following steps of: 1) performing cleaning treatment for the surface of the base; 2) attaching the solar cell onto the base body, and leading out positive and negative electrodes; 3) and finally, coating the protection layer on the solar cell. The solar cell module is easy for large-scale and batch production and has a great cost advantage.