322results about How to "Dense surface" patented technology

The invention relates to an organic wastewater treatment film reactor utilizing solar energy photo-assisted electro-catalysis, which comprises a storage tank of water to be processed, a flow controllable constant flow pump, a photoelectric chemical reactor, a clear water storage tank and a solar battery component, wherein a photo anode and a cathode are correspondingly arranged in the reactor; the photo anode takes a porous metal membrane as a base body, and a TiO2 nano tube or a TiO2 mesoporous membrane is formed on the surface of a porous titanium membrane (net) by an electrochemical anisotropic etching technology; a porous channel film is used as the base body; a metal oxide coating electrode with high electrochemical catalytic activity and high electrical conductivity is prepared by a dipping film-forming method, simultaneously, by doping and modifying operations, the electrode material has photo catalytic activity and the reaction efficiency is improved. The reactor integrates electrochemistry, photocatalysis and film separation technologies; the three technologies are coupled to enhance a synergistic effect; the wastewater treatment efficiency can be improved; a solar component is adopted as a power supply; the clean solar energy is utilized to the maximal degree, and the organic wastewater treatment film reactor has social benefits of reducing environment load and economic benefits of reducing cost.

The invention provides a mildew-proof preservative paper and a preparation method and a preparation device thereof. The preparation device comprises a paper-based layer, a decorative coating and a mildew-proof preservative coating, wherein the mildew-proof preservative coating is arranged one surface of the paper-based layer, the decorative coating is arranged on the other surface of the paper-based layer, the mildew-proof preservative coating is made from a mildew-proof preservative coating raw material and is prepared from, by weight, 20%-60% of resin, 30%-70% of solvent, 0.5%-10% of mildew preventive and 0.3%-5% of additive, the resin is at least one of polyurethane resin, acrylic ester copolymer, polyvinyl alcohol, polyvinylidene chloride, modified polyethylene vinylidene chloride, vinyl-vinyl acetate copolymer, polyvinyl acetate copolymer and vinyl acetate-butyl copolymer, and the solvent is at least one of water and ethanol. The surface of the obtained mildew-proof preservative coating is dense and provided with small pores, the mildew-proof preservative coating has the good effect keeping moisture constant, the mildew preventive is dispersed inside resin, mildewing can be also prevented, and further a good preservation effect is reached.

The invention relates to the field of anti-reflection technology for the surface of glass, and concretely relates to a nanometer core-shell silicon dioxide microsphere and a composite coating solution which is compounded by the nanometer core-shell silicon dioxide microspheres and aluminum silicon sol as well as preparation methods thereof. A cation type polystyrene emulsion is used as a hard template in order to prepare silicon dioxide dispersion liquid with a nanometer core-shell structure, the dispersion liquid and the aluminum silicon sol are compounded in order to prepare the coating solution for an antireflection film, toughening treatment is carried out for the coating solution in order to obtain the antireflection film. The raw materials are easy to obtain, and the antireflection film with a hollow structure is prepared by a simple process; pore spaces are arranged in particles and are not arranged in a silicon dioxide network, so that high light transmittance of the film is guaranteed, the light transmittance reaches 94.5% or above, and the porosity is high; the film has excellent smudginess resisting performance, the antireflection film and a glass substrate can be firmly combined, and the hardness of the film is high; because the surface of the film is compact, the film has good blocking effects for steam erosion, good weatherability, and industrialized application values.

The invention relates to conductive silver paste for a ceramic filter and a preparation method of the conductive silver paste. The conductive silver paste comprises the following components in parts by weight: 50-80 parts of metal silver powder, 2-5 parts of glass powder, 10-30 parts of an organic carrier, 1-3 parts of an organic additive and 1-10 parts of an organic solvent, wherein the glass powder is lead-free glass powder, the coefficient of thermal expansion is 110-120*10<-7>/DEG C, and the sintering temperature is 550-750 DEG C. The preparation method comprises the following steps: adding the organic carrier and the organic solvent into a mixer, adding the metal silver powder, the glass powder and the organic additive, fully mixing, transferring a mixture into a high-speed dispersionmachine, and uniformly dispersing at a high speed to obtain a conductive silver paste; and grinding the prepared conductive silver paste in a three-roller mill, and finely adjusting a roller to enable the fineness of the conductive silver paste to be less than 10mu m and the viscosity to be 30-50Pa.S, thereby obtaining the conductive silver paste for the ceramic filter. The conductive silver paste for the filter can form a conductive silver layer which is high in compactness, high in adhesive force, high in conductivity, good in weldability and stable in performance.

A self-aligning double patterning formation method includes providing a to-be-etched layer, wherein the surface of the to-be-etched layer is provided with a plurality of discrete sacrificial layers; forming mask layers on the surface of the to-be-etched layer and the sidewall and top surfaces of the sacrificial layers; etching back the mask layers until the mask layers expose out of the surface of the to-be-etched layer and the top surfaces of the sacrificial layers, and forming mask spacers on the sidewall surfaces of the sacrificial layers; removing the sacrificial layers after the mask spacers are formed; after the sacrificial layers are removed, subjecting the mask spacers to strengthening treatment to enable the mask spacers to be densified. The masks formed by self-aligning double patterning process are good in shape.

The invention relates to an electrolytic solution used to oxygenize surface of aluminum-magnesium alloy work-piece by differential arc. Said electrolytic solution comprises 4-40g/L of sodium aluminate, 0-10g/L of caustic soda and other assistants. The invention can generate a ceramic film with smooth surface, strong resistance to soiling, corrosion resistance and great mechanical behavior.

The invention discloses glass fiber air filter paper which can be repeatedly cleaned. The glass fiber air filter paper comprises glass fibers and bonding glue stock, wherein the glass fibers are prepared by mixing 25-45 parts by mass of alkali-free glass fiber cotton with the diameter of 3.5-6.0 microns and 55-75 parts by mass of alkali-free glass fibers with the diameter of 0.4-0.8 micron; the bonding glue stock comprises acrylic resin, macromolecular fluorocarbon, a surfactant and a cross-linking agent; the dry weight of the bonding glue stock accounts for 1-3 percent of the total weight of the glass fiber air filter paper. A method for preparing the glass fiber air filter paper provided by the invention comprises the following steps: dispersing and pulping; conveying pulp to a former for forming, applying glue to the surface of wet paper, and performing suction and dehydration; performing primary drying on the wet paper by an infrared drying device; and finally, drying the wet paper at the temperature of 100-200 DEG C, thereby obtaining the glass fiber air filter paper. According to the invention, the water resistance of the air filter paper can be obviously improved under the condition that other performance of the air filter paper is not influenced, and the air filter paper can be repeatedly used after being cleaned.

The invention relates to composite oxidation technology for medicinal titanium alloy, belongs to the technical field of chemical treatment on metal surfaces, and aims to improve the corrosion resistance and abrasion resistance of an oxidation layer on the surface of the medicinal titanium alloy. The method comprises two key processes: 1, anodic oxidation technology on the surface of the titanium alloy; and 2, thermal oxidation technology on the surface of the titanium alloy. The method comprises the following steps of: performing surface finish, alkaline wash and activation on the titanium alloy, and performing anodic oxidation by using mixed solution of ammonium phosphate, ammonium acetate and hydrogen peroxide as electrolyte; drying and performing thermal oxidation in the atmosphere of nitrogen and oxygen according to a certain ratio, and controlling the temperature to be between 500 and 700 DEG C. The provided method has the advantages of simpleness, easy implementation, no damage to mechanical properties of titanium alloy materials, no environmental pollution, application to mass production and great reduction of cost.

The invention relates to a green glass-ceramic plate made from lead-zinc smelting slag and a manufacturing method thereof. The glass raw material is prepared from the following components in parts by weight: 40 to 60 parts of lead-zinc smelting slag, 26 to 38 parts of quartz, 15 to 24 parts of lithium feldspar, 2 to 4 parts of soda ash, 2 to 3 parts of zinc oxide, 2 to 5 parts of barium carbonate, 1 to 3 parts of borax, 2 to 2.5 parts of chromium oxide, 0 to 0.2 part of copper oxide and 0.04 to 0.2 part of carbon powder. The invention is not only in line with the common glass-ceramic produced by completely adopting industrial materials on the aspect of the performance, but also can realize waste utilization, reduce the environmental pollution, the product cost and the melting temperature of glass, improve the melting speed and the melting furnace efficiency of the glass, decrease the energy consumption and can be widely applied to building decoration materials, especially applied in various building decoration engineering, such as inside and outer walls, floors, pillars, table boards of the building, and the like.

The invention discloses a preparation method of a high-capacity lithium-rich anode material. According to the method, a material precursor, lithium salt and alkali metal or alkaline-earth metal molten salt are calcined at certain temperature according to a certain sequence and ratio, and then the high-capacity lithium-rich anode material is obtained. The obtained lithium-rich anode material is smooth and dense in particle surface and excellent in electrochemical performance, and has the advantages of being high in discharge capacity, low in irreversible capacity, stable in circulation and the like. The method is simple in technological condition, raw materials are cheap, growth of crystal particles of the lithium-rich anode material is controlled through the molten salt, and meanwhile the problem of non-uniform sintering in the sintering process and especially the large-scale sintering process of the material is solved. High practicality is achieved, and the preparation method is suitable for mass production.

The invention discloses an ultra-high-performance electronic glass fiber cloth production process which specifically includes the steps: A, slightly splitting electronic glass fiber cloth; B, drying the slightly split electronic glass fiber cloth; C, deeply splitting the dried electronic glass fiber cloth; and D, drying the deeply split electronic glass fiber cloth so that ultra-high-performance electronic glass fiber cloth is obtained. During slight splitting, cloth surfaces are humidified by a water-washing oscillating trough, so that warp and weft yarns are bulked, and fibers are loosened; and during deep splitting, purified water is sprayed from holes of nozzles to be directly jetted to the cloth surfaces, the front and the back of the glass fiber cloth are sprayed by water columns, the warp and weft yarns are broken apart after the cloth surfaces are subjected to impact pressure of the purified water columns, the compactness of the glass fiber cloth is greatly reduced, and gaps among the warp and weft yarns are mostly filled by loose single fibers to be smaller, so that the surfaces of the glass fiber cloth become dense and uniform, and the surfaces of the glass fiber cloth are smoother after splitting.

The invention discloses a method for preparing a carbon-containing micro-arc oxidation ceramic layer. The method comprises the following steps: firstly respectively adding Na2SiO3, NaF, KOH and graphene into a container, and pouring a proper amount of deionized water into the container; putting the container into an ultrasonic wave instrument until graphene is completely dissolved or uniformly dispersed in the solution so as to generate electrolyte; pouring the prepared electrolyte into a stainless steel electrolytic cell, carrying out micro-arc oxidation by virtue of a direct-current pulsed power supply by taking a pre-prepared pure magnesium sample as a positive electrode and the stainless steel electrolytic cell as a negative electrode, so as to obtain the carbon-containing micro-arc oxidation ceramic layer. By virtue of the method, the surface of the carbon-containing micro-arc oxidation ceramic layer is relatively smooth and compact, relatively good anti-attrition and wear-resisting effects are achieved, and an energy-efficient preparation process is realized.

The invention provides a method for preparing a doped perovskite structural composite oxide, which comprises two steps, namely preparation and sintering of sol-gel. The preparation of the sol-gel comprises the following steps of selecting an element containing Sr or Zr as a group A element and selecting an element containing three elements selected from Ti, Fe, Cu, Pd and Mn as a group B element to prepare perovskite structural composite oxide gel of which the general formula is AB1-x-yB'xB''yO3-epsilon, wherein x and y are more than 0 and less than 0.5; and epsilon is more than -0.5 and less than 0.5 and is an oxygen lattice defect number. The obtained gel is sintered in a muffle furnace of which the temperature can be controlled by a program to obtain a perovskite oxide material which has a high crystallization degree, a single crystal form and a compact surface. The perovskite oxide material can be applied to a piezoelectric material or an electronic apparatus and can also be made into a compact ion conducting oxygen-permeable membrane for oxygen separation.

The invention relates to a graphene oxide/PVDF (polyvinylidene fluoride) blended cation exchange membrane and a preparation method thereof. The cation exchange membrane is prepared from the following components and raw materials in percentage by weight: 5-20% of polyvinylidene fluoride, 0.1-5% of graphene oxide, 50-70% of an organic solvent, 10-20% of divinyl benzene, 6-20% of glycidyl methacrylate, and 0.5-5% of benzoyl peroxide. The preparation method comprises the following steps: preparing membrane casting liquid firstly, preparing the membrane casting liquid into a base membrane by utilizing a tape casting method, cleaning the base membrane, and modifying the base membrane so as to obtain the cation exchange membrane. Compared with the prior art, the graphene oxide/PVDF blended cation exchange membrane prepared by using the method disclosed by the invention has the advantages that not only can the original excellent characteristics of PVDF cation exchange membranes be retained, but also the surface properties of PVDF cation exchange membranes are improved, the hydrophilicity, mechanical strength and acid and alkali resistances of membranes are enhanced, and the anti-pollution capacity of membranes is improved.

The invention discloses a TiN-Ag nano composite coating and a preparation and application thereof. The TiN-Ag nano composite coating is characterized by being a composite film obtained by magnetron co-sputtering deposition; and a certain substrate temperature is kept in the sputtering process, and the obtained thickness is between 0.5[mu] m and 1[mu] m. The negative bias voltage of a substrate in the preparation process is adjusted by experiments; for an obtained TiN-Ag nano composite coating, the hardness of the substrate is remarkably improved; Ag elements are uniformly distributed in a TiN film, so a contact angle of the TiN film is significantly smaller than that of a TiN film in which no Ag is doped, good hydrophilicity is obtained and cell compatibility is improved; and the TiN-Ag nano composite coating is expected to improve application of a titanium alloy in biomedicine. The material formed by the method disclosed by the invention is stable in structure, the method can be repeated, and preparation conditions are controllable.

The invention provides an environment-friendly fireproof material for electrical equipment and a preparation method of the environment-friendly fireproof material, and belongs to the fields of fireproof materials and preparation technologies thereof. The environment-friendly fireproof material for the electrical equipment is characterized by being prepared from the following raw materials in parts by weight: 50 to 60 parts of modified epoxy resin, 30 to 40 parts of fluorocarbon resin, 60 to 90 parts of a fire retardant, 3 to 10 parts of expanded graphite, 3 to 10 parts of alumina silicate fiber and 2 to 8 parts of molecular sieves. The fireproof material provided by the invention is applied to fire protection of the electrical equipment, and is high in crack resistance, water resistance and weather resistance and good in expansion character; meanwhile, the heat release rate of a base material in a burning condition can be obviously reduced, and the quality loss is reduced; moreover, the fireproof material is small in smoke production quantity and good in environmental protection effect.

The invention relates to a preparation method of spherical zirconium diboride and silicon carbide aggregate powder, belonging to the technical field of composite powder materials. The method comprises the following steps: with zirconium diboride and silicon carbide in the mass ratio of (0.5-1):2 as raw materials, preparing a turbid liquid by using the raw materials and absolute ethyl alcohol, and ball-milling and mixing at the speed of 100-400r/min for 2-6h to obtain a precursor, wherein the mass ratio of absolute ethyl alcohol to the raw materials is (1-3):1; adding absolute ethyl alcohol into the precursor, mixing, and placing the mixture into a colloid grinder to grind and emulsify to obtain a mixed turbid liquid of mixed powder and absolute ethyl alcohol, wherein the mass ratio of the raw materials to the sum of absolute ethyl alcohols added twice is 1:(5-8); carrying out agglomeration, nodularization and densification treatment on zirconium diboride and silicon carbide powder in the turbid liquid by using a liquid powder feeder and induction plasma nodulizing equipment to obtain the powder. The method is simple, low in cost, capable of directly preparing the spherical zirconium diboride and silicon carbide aggregate powder from the raw materials, and capable of improving the purity and quality of the spherical zirconium diboride and silicon carbide aggregate powder.

The invention discloses a calcium-based polymer gel material of multicomponent composite powder and a preparation method of the calcium-based polymer gel material. The calcium-based polymer gel material is prepared by mixing the composite multicomponent powder composed of portland cement, metakaolin, high-calcium fly ash and slag powder, a composite activator composed of liquid sodium silicate andsolid pure sodium hydroxide, and water at a normal temperature, wherein the multicomponent composite powder comprises the following raw materials in parts by weight: 10-30 parts of the portland cement, 20-60 parts of the metakaolin, 15-60 parts of the slag powder and 5-20 parts of the high-calcium fly ash; in the composite activator, the liquid sodium silicate and the solid pure sodium hydroxideaccount for 10-16% of the mass of the composite powder; and the water accounts for 35-45% of the mass of the composite powder. According to the invention, the kaolin, the slag powder and the high-calcium fly ash with wide sources are used as the raw materials, the raw materials are blended with a small amount of the portland cement to obtain the calcium-based polymer gel material, a production process is simple, the energy consumption is low, and energy conservation and environmental protection are achieved; and the obtained calcium-based polymer test piece is compact in surface, high in strength and good in high-temperature resistance and chemical corrosion resistance.

Disclosed is a method for preparing a lithium battery electrode material FeSe2 thin film through magnetron sputtering. The method comprises the steps that a, preparation of sputtering is conducted, a silicon chip selected as a substrate and a FeSe target selected as a sputtering target are installed in a magnetron sputtering chamber, and the distance between the sputtering target and the substrate is adjusted to be 5-7 cm; b, sputtering deposition is conducted, a vacuum chamber is vacuumized until the air pressure is below 2*10-4 Pa, then argon gas is pumped in, the sputtering air pressure, the sputtering power and the temperature of the substrate are adjusted, and a thin film is deposited on the silicon chip after the sputtering is conducted for a certain time; and c, post-annealing treatment is conducted, the silicon chip where the thin film is deposited and a selenium granular ball are sealed in a vacuum quartz tube with the air pressure being smaller than 1*10-2 Pa, then the quartz tube is positioned in a tubular furnace, the post-annealing treatment is conducted under protection of the argon gas, and the FeSe2 thin film is obtained. The method is capable of preparing the FeSe2 thin film with a large area and good properties, simple in preparation process, low in energy consumption, low in cost, high in efficiency, good in repeatability, and suitable for industrialized production.

The invention discloses a controllable-optical-property shape-memory polymer film and a preparation method thereof. Styryl shape-memory polymer solution prepared proportionally is used as the raw material and subjected to a micro photoetching silyl template and spin coating technique to prepare the multiple shape-memory polymer micropattern structure film. The preparation method is simple to operate, and has the advantages of low cost and controllable film thickness; and film surface micro/nano structure can be predesigned according to the application demands, and is applicable to multiple application demands in the field of micro-optics. The styryl shape-memory polymer film has excellent shape memory performance, and can implement the process of quick recovery of the imprinting disappearance on the structural film surface under thermal excitation. By combining the shape-memory characteristic of the material, the method can implement controllable optical properties of the structural film, and has wide application prospects in the fields of tunable micro optical devices, color-control intelligent buildings, display devices, sensors and the like.

The invention discloses a method for repairing a mechanical shaft kiln lining, belonging to the maintenance field of a lime production kiln. The method comprises the following steps: 1. washing a furnace: cleaning a furnace wall with high-pressure water by a high-pressure nozzle driven by a spraying mechanical arm from bottom to top firstly and then from top to bottom; 2. examining for spraying: thoroughly cleaning nodules and residues off from the inner wall of the furnace, cleaning loose floating bricks out of the furnace, digging and repairing seriously collapsing positions in the furnace,installing stainless steel anchorages on a working layer in the furnace, hanging a net, welding a longer anchorage, and hanging a net for spraying; and 3. spraying: integrally spraying the whole lining in a large area and spraying local areas with specific targets to obtain an intact furnace profile. The method has the advantages of short construction period, low cost and good effect.