328results about How to "Reduce stacking" patented technology

The invention relates to the technical field of organic photoelectric materials, and in particular, relates to an organic compound, an electronic element containing the same and an electronic device.The compound has a structure represented by a chemical formula 1', wherein one of R1, R2, R3 and R4 is a group defined in the specification, and the other three are selected from substituents such asalkyl, halogen and cyano; one of R5, R6, R7 and R8 is a group defined in the specification, the other three are selected from substituents such as alkyl, halogen and cyano, Y and Y1 are respectively and independently a group defined in the specification, and L and L1 are single bonds, aryl, heteroaryl and the like. By using the organic compound in an electronic component, the driving voltage, luminous efficiency, and life of the electronic component are improved.

An uncoiling blanking forming method comprises the following steps that 1) steel coil uncoiling is carried out, namely a steel belt after steel coil uncoiling is subjected to washing and straightening and enters a blanking zone through a clamping conveying roller; 2) laser blanking is carried out, namely a steel coil enters the blanking zone, a laser blanking mode is used, a material piece with the needed shape is formed by cutting of a laser cutting head, and waste materials fall down and are output; 3) material piece output is carried out, namely the material piece is conveyed through a magnetism stretching conveying belt machine and then is carried to a stamping procedure through a mechanical arm or a robot; 4) stamping forming is carried out, namely the material piece is subjected to stamping and is machined into a workpiece; and 5) checking is carried out, namely the workpiece is checked and put in storage. The method can achieve series connecting of a blanking line and a stamping forming line, matching can be achieved, the middle links such as stacking, packing, conveying, locating, unpacking, conveying and position centering of piece materials and stamping forming workpieces and transferring sites are reduced, the technology processes are simplified and connected in series, and by laser blanking, coiling materials are directly machined into forming pieces.

The invention relates to a phosphogypsum-based light-weight insulation board and a preparation method thereof. The phosphogypsum-based light-weight insulation board is prepared from the following raw material components in parts by weight: 100 parts of phosphorus building gypsum, 10-30 parts of high-strength gypsum, 3-12 parts of lightweight aggregates, 0.1-0.3 part of a dispersing agent, 0.3-0.5 part of a retarder, 0.2-0.4 part of a water-retaining agent and 0.1-0.3 part of an air entraining agent. The preparation method comprises the following steps: adding water into a stirring machine in a water-cement ratio of (0.70-0.80):1, adding the air entraining agent, the retarder, the dispersing agent and the water-retaining agent, stirring, then adding a dry material, obtained by uniformly mixing the phosphorus building gypsum, high-strength gypsum and lightweight aggregates, into the stirring machine, continuously stirring to obtain slurry, paving basalt fiber mesh cloth in a bottom die of a gypsum board forming die, pouring into the slurry, vibrating for 1 minute, then paving a layer of basalt fiber mesh cloth on the surface layer, closing a cover die of the gypsum board forming die, carrying out roller forming, taking apart the die after solidification, and drying, so that the phosphogypsum-based light-weight insulation board is obtained.

The invention belongs to the technical field of material preparation and photocatalysis, and discloses a high-activity graphite-phase carbon nitride material and a preparation method thereof. The preparation method comprises the following steps: forming a self-generated gas atmosphere a gas generated from a precursor by pyrolysis in the high-temperature calcining process under the control on an inert gas, and guiding synthesis of a carbon nitride material, thereby obtaining a flaky porous graphite-phase carbon nitride material. According to the preparation method, after the inert gas is not introduced any longer, a self-generated gas generated from the precursor is relatively uniform at different parts, and the carbon nitride material prepared with the preparation method is uniform in morphology and relatively good in crystal form; due to the escape of the self-generated gas, the material is effectively pored, and thus the specific surface area and the active sites of the material are increased; due to the self-generated gas atmosphere, the polymerization degree of the precursor is reduced, and the obtained carbon nitride material has a relatively large amount of unpolymerized amino or imino groups. The preparation method disclosed by the invention is simple, efficient and low in cost, and the carbon nitride material prepared with the preparation method is excellent in photocatalysis activity and very good in practicability.

The invention provides equipment for drying and carbonizing wood integrally. The equipment comprises a pressure adjusting system, a heating and cooling system, a material loading, transporting and pressurizing system and a water drainage system; an exo-box heat conduction oil pipe of the heating and cooling system penetrates through a treatment box and is welded to a wall of the treatment box for being sealed; a water inlet valve of the water drainage system is connected to the treatment box and a water drainage box through connection pipelines; and an outer wall of a hydraulic cylinder of the material loading, transporting and pressurizing system is welded to the treatment box in a sealed mode. The equipment has the advantages that the repeated loading, stacking, heating and cooling steps of the drying and heat treating steps of wood are reduced, so that the processing efficiency is improved, and the energy consumption is lowered; a processing method is flexible and multipurpose and the equipment is multifunctional; the whole drying and carbonizing treatment is carried out on the vacuum and negative pressure conditions, the content of air in the treatment box is small, and the oxygen content is low; carbonized wood making contact with a hot plate can be fast cooled; and the wood can be prevented from being deformed, warped and cracked in the vacuum drying and vacuum carbonizing stages.

The invention belongs to building mortar, and particularly relates to lightweight gypsum plaster mortar which is the secondary development of gypsum plastered product technology. The lightweight gypsum plaster mortar is used for leveling inner sides of outer walls, inner partition walls and ceilings of buildings, and the heat-insulated effect is good. Because the flue gas desulphurized building gypsum of power plants is used, the problem of disposing and using the desulphurized gypsum is solved, and the circulating economy is developed. The method for preparing the plaster mortar comprises the following steps of: accurately weighing up the following materials in part by weight: 70 to 80 parts of flue gas desulphurized gypsum of power plants, 15 to 25 parts of vitreous hollow microsphere, 0.2 to 0.4 part of cellulose ether, 0.3 to 0.6 part of air entraining agent and 0.2 to 0.5 part of retarding agent; and putting the materials into a container, adding 60 to 120 parts of water into the container, and uniformly stirring the mixture at the normal temperature to obtain the lightweight gypsum plaster mortar. The lightweight gypsum plaster mortar has the advantages of moderate strength, unnecessary additional making of protective covering, direct leveling after plastering, high performance cost, high workability, short construction period, functions of preventing fire, absorbing sound, and adjusting air humidity and no emission of CO2 in the production process.

The invention relates to a method for disposing industrial waste sulfuric acid by utilizing carbide slag. The method comprises the following steps: evenly mixing the carbide slag with water in an airtight mixing tank to obtain a carbide slag suspension of which the solid content is 15 wt% (weight percentage) to 35 wt%; then, delivering the carbide slag suspension into a neutralizing tank; adding the waste sulfuric acid into the neutralizing tank under stirring until the pH (Potential Of Hydrogen) of a system in the neutralizing tank is 7 to 9; then, delivering a mixture to a filter press for solid-liquid separation; returning filtrate to the airtight mixing tank for recycling, wherein a filter cake is water-contained calcium sulfate. The method disclosed by the invention is greatly simplified in production flow, very simple in process, easy to operate and low in energy consumption; meanwhile, after two kinds of industrial waste are disposed, the filtrate returns to the system for reuse; the water-contained calcium sulfate filter cake can be directly used as a raw material for producing cement and gypsum, and can also be used directly used for paving and the like, and no secondary pollutants are generated.

The invention relates to graphene-based water-based conductive ink prepared by a one-step method and a preparation method thereof. The preparation method comprises the steps: jointly adding 1 to 8 parts of expanded graphite, 10 to 30 parts of conductive filler, 10 to 50 parts of water-soluble resin, 20 to 80 parts of solvent and 1 to 10 parts of aid into a high-pressure homogenizer to perform high-pressure shear; grinding until the particle size of slurry is smaller than 80mu m to obtain the graphene-based conductive ink with excellent conductivity and good stability. By means of the method, expanded graphite peeling and intercalation of conductive particles among graphite flakes can be finished at the same time in a shearing and grinding process; thus, an integrated good conductive network is established. The method has the advantages of simpleness in operation, short consumed time, ability in avoiding stack among the graphene flake layers and avoiding a grinding medium, simpleness infollow-up processing and suitability for production. The prepared graphene-based water-based conductive ink has the advantages of good dispersion and high stability.

The invention relates to a coal composite sulfur fixing agent, belonging to the technical field of boiler combustion desulphurization. The composite sulfur fixing agent is made of the following raw materials in parts by weight: 40-70 parts of CaO, 5-10 parts of SiO2, 5-15 parts of Al2O3, 3-5 parts of Fe2O3, 0.5-1 parts of BaS, 0.5-1 parts of BaCO3, 0.1-1.5 parts of Zn, 0.02-0.05 parts of Cu, 0.05-0.1 parts of As, 0.01-0.05 parts of Pb, 1-5 parts of CaF2, 0.05-0.2 parts of MgO, 0.5-1.0 parts of TiO2, 0.5-1.0 parts of K2O, 0.1-1.0 parts of Na2O and 0.04-0.06 parts of Ag. The coal composite sulfur fixing agent of the invention can reduce the emission of SO2, the atmospheric pollution and the formation conditions for acid rain. Since pulverized fuel ash and coal cinder are converted to modified ash and can be used in cement production technology, the clinker production of common cement can be reduced generally, the mine resources and the energy consumed during cement production are reduced, and the emission of CO2 is reduced.

The invention belongs to the field of waste disposal and mine coal extraction methods, and relates to a method for achieving coal pillar mining replacement through gangue strip filling, in particularto a waste comprehensive utilization method for coal-electricity integrated enterprises. Down-hole coal pillars are replaced through power plant flyash, heavy salt water and mine waste gangue, and theresource recovery rate and the economical benefits are increased.

The invention provides a graphene-based carbon nanofiber preparation method, characterized in that polyacrylonitrile is taken as a carbon source, oxidized graphene prepared by an improved method provided by the invention is added, then an electrospinning technique is used for preparing and obtaining oxidized graphene/polypropylene nanofiber, then pre-oxidation and carbonization steps are adopted to prepare and obtain graphene-based carbon nanofiber. The graphene-based carbon nano material prepared by the method provided by the invention is very easily dispersed, the overlapping of sheets is reduced, and the removal of a functional group at high temperature is facilitated, so that the conductivity and specific surface area of nanofiber are improved. Under the condition that the current density is 1A/g, the specific capacitance is 468F/g.

The invention discloses a rotaviral tetraene fluorescent compound, a preparation method and application thereof, and an electroluminescent device. The structural general formula of the rotaviral tetraene fluorescent compound is as follows, wherein Ar1 is phenyl, 1-naphthyl or 2-naphthyl, and Ar2 is phenyl, 1-naphthyl or 2-naphthyl. A special rotaviral tetraene conjugate rigid structure containing heteroatoms is utilized and connected with a blue luminophore with high quantum efficiency, so as to obtain the rotaviral tetraene fluorescent compound. Thus, a more distorted molecular structure is achieved; pi-pi accumulation between molecules is reduced; meanwhile, the conductivity of the fluorescent compound is improved. By adopting the rotaviral tetraene fluorescent compound, stabilization of an apparatus is facilitated; excellent electroluminescent properties are obtained; development of an efficient full-color display is facilitated; the rotaviral tetraene fluorescent compound can be widely applied to OLED (organic light-emitting diode) large-screen display and OLED white-light illumination with high brightness demands.

The invention relates to a desulfurized gypsum thermal-insulation material belonging to thermal-insulation materials. The waste pollutant desulfurized gypsum in the existing heat power plants is piled and filled in land, thereby polluting the ecological environment and influencing the safe operation of the power plants. The desulfurized gypsum thermal-insulation material provided by the invention comprises the following components in parts by weight: 80-85 parts of desulfurized building gypsum, 15-20 parts of vitrified microbead, 0.1-0.25 part of cellulose ether, 0.2-0.4 part of air entraining agent, 0.01-0.015 part of retarder and 70-100 parts of water. The components are added into water and evenly mixed to obtain the desulfurized gypsum thermal-insulation material. The desulfurized gypsum thermal-insulation material has the advantages of low coefficient of heat conductivity, thermal insulation and heat-shielding performance, energy saving, moderate strength, favorable workability and short construction cycle, has the functions of fire resistance, sound absorption, air humidity conditioning and the like, and reduces the piling and landfilling of the desulfurized waste residues as well as environmental pollution; and no CO2 is emitted in the production process.

The invention discloses an unmanned aerial vehicle multi-scale target detection and recognition method, which is high in recognition rate, small in calculation amount and high in robustness. The method is realized through the following technical scheme: forming a real-time target detection and identification network model by adopting three parts, namely a trunk structure for extracting different scale features, a network neck (Neck) and a network detection head for predicting target information, performing feature extraction on an input image by adopting a CSPDarknet53 trunk network in a target detection and identification network-YOLOv4, and expanding the original three-scale feature output into four-scale feature output; using an improved two-branch PANet to reduce the number of convolution layers through which features pass; predicting a conditional probability value for each category by each detection output, directly obtaining a prediction result from the picture, and obtaining target information; and transmitting the four feature maps with different sizes to a detection head for joint training, and performing category judgment and position regression on the unmanned aerial vehicle target to obtain a detection and recognition result.

The invention relates to a polyimide adhesive and a preparation method thereof and belongs to the technical field of adhesives. The polyimide adhesive solves the problem that the polyimide adhesive ata temperature of greater than 350 DEG C has poor thermal instability and low adhesive properties. The polyimide adhesive is prepared from a polyimide adhesive prepolymer through curing. The preparation raw materials of the polyimide adhesive prepolymer comprise aromatic diamine containing a biphenyl structure, aromatic diamine containing a siloxane structure, aromatic dianhydride and a blocking agent. The preparation method comprises dissolving the polyimide adhesive prepolymer in an organic solvent to obtain a homogeneous solution, coating the surface of the adherend with the homogeneous solution, removing the organic solvent, carrying out curing to obtain the polyimide adhesive and bonding the adherend The polyimide adhesive can be used for the bonding of high temperature resistant parts in the fields of aviation, aerospace, precision machinery and petrochemical industry.

The present invention provides a graphene powder preparation method, which comprises: a, carrying out a reaction of graphite oxide and a dispersant to obtain an intermediate product, wherein the dispersant comprises an ammonium salt; and b, carrying out a heat treatment on the intermediate product to obtain the graphene powder. According to the present invention, the close contact degree of the graphite oxide sheet layers can be weakened through the dispersant, such that the obtained graphene powder of the present invention has characteristics of low agglomeration degree and good dispersion property; the dispersant is subjected to thermal decomposition to produces gas during the heat treatment process and the gas makes the graphite oxide be peeled, such that the agglomeration degree of the obtained graphene powder of the present invention is further weakened so as to obtain the graphene powder having the good dispersion property; and the graphene powder having the good dispersion property can be obtained without the spray drying compared with the method in the prior art, such that the graphene powder preparation method of the present invention has characteristics of high efficiency and low energy consumption, and can be used for large-scale production of the graphene powder.

The invention discloses a graphene-based waterborne acrylic paint and a preparation method thereof. The paint is prepared by mixing the following raw materials in parts by weight: 100 parts of an acrylic resin emulsion, 0.1-1 part of spitball graphene microspheres, 30-60 parts of an inorganic filler, 9-12 parts of an assistant and 10-20 parts of water. The spitball graphene microspheres with good mechanical property and elasticity can be obtained through spray drying and two-step method reduction. The spitball graphene microspheres are capable of effectively absorbing shock after being added to the paint, so that the abrasive resistance of a coating is improved and the chemical corrosion resistance can be improved. The spitball graphene microspheres have a unique microstructure, so that graphene can be effectively prevented from being stacked, the phenomena of aggregation and precipitation of the graphene in the paint are avoided and the overall stability of the paint is greatly improved.

The invention discloses a gel material for filling a worked out section by vanadium-titanium-containing slags. The gel material comprises the following components in percentage by weight: 8-11% of an alkaline excitant, 14-16% of desulfurized gypsum and 71-77% of vanadium-titanium slags. The gel material further can comprise 1-2% of mirabilite as an early strength agent. The invention discloses filling slurry prepared from the gel material, full mill-tailing filler and tap water at the same, wherein the weight ratio of the gel material to the full mill-tailing filler is (1:15)-(1:4), and the percentage by weight of the tap water is 22-32%. The gel material disclosed by the invention realizes resource utilization of vanadium-titanium-containing slags and reduction of stacking of solid residues on the surface, and the filling cost of the worked out section of a mine is greatly reduced. Meanwhile, the filling body prepared has high strength.

The invention discloses a preparation method of a graphene/stannic oxide composite nanofiber membrane and an application, and relates to anode materials for lithium-ion batteries. The preparation method comprises the following steps: adding graphene to deionized water and carrying out ultrasonic treatment; adding NaOH and stannic chloride under a stirring condition, and mixing the deionized water evenly to obtain a mixed solution; transferring the mixed solution to a reaction kettle for reaction, and filtering, cleaning and drying the mixed solution to obtain graphene/stannic oxide composite nano-particles; ultrasonically dispersing the graphene/stannic oxide composite nano-particles into a mixed solvent of methanol and water, and adding PVAc to obtain a spinning precursor solution; carrying out high-pressure electrospinning on the spinning precursor solution to obtain a PVAc/graphene/stannic oxide composite nanofiber membrane; and carrying out drying and thermal treatment to obtain the porous graphene/stannic oxide composite nanofiber membrane, wherein the diameters of fibers in the composite nanofiber membrane are 800-1200nm and the lengths are greater than 0.5mm. A conductive agent and a binder do not need to add, and the graphene/stannic oxide composite nanofiber membrane can be directly applied to preparation of the lithium-ion battery as an electrode material.

The present invention relates to an organic compound, the structure of the organic compound comprises a formula I and a formula II, the structure represented by the formula I is fused with the structure represented by the formula II, and * represents a connection point capable of being fused with the formula II in the formula I. When the organic compound provided by the invention is used for a light-emitting layer of an organic light-emitting device, the device efficiency of the device can be effectively improved, and the service life of the organic light-emitting device is prolonged.