32results about How to "Process is easy to control" patented technology

The invention discloses an efficient difunctional alkaline electrolysis water electrode which comprises a nickel net, an N deposition layer is deposited on the surface of the nickel net, and a NiFeW alloy layer is deposited on the surface of the N deposition layer. The invention further discloses a preparation method of the electrolyzed water electrode. The preparation method comprises the following steps: pre-treating the nickel net substrate; dissolving a nickel salt, a conductive salt and an additive in water to obtain a nickel electrodeposition solution; dissolving a nickel salt, an iron salt, a tungsten salt and an additive in water to obtain a nickel-iron-tungsten electro-deposition solution; and then the nickel net substrate is placed in a nickel electrodeposition solution to be subjected to constant-current deposition, a first electrode of an N deposition layer loaded on the nickel net substrate is obtained, the first electrode is placed in a nickel-iron-tungsten electrodeposition solution to be subjected to constant-current deposition, an N < iFeW > alloy layer loaded on the N deposition layer is obtained, and a finished electrode is obtained. The method has the advantages of low hydrogen evolution overpotential, low oxygen evolution overpotential, good stability, short-time deposition at room temperature, simplicity, easiness in control and low cost, and can be expanded to actual industrial application.

The invention discloses a distributed fluorescence temperature measurement method based on 45-degree inclined gratings, and relates to the field of temperature monitoring under high-temperature conditions of engine turbine blades and the like. 45-degree inclined grating strings are designed and manufactured, the outer sides of the 45-degree inclined gratings are coated with fluorescent materials, and the fluorescent materials are made to emit light through ultraviolet pulse excitation light; the fluorescence returns to the optical fiber through the 45-degree inclined grating, the fluorescence lifetime is measured, temperature monitoring is achieved according to the relation between the fluorescence lifetime and the temperature, the detection position is calculated through the pulse light return time, and temperature distribution of different positions is obtained. According to the distributed fluorescence temperature measurement method based on the 45-degree inclined grating, the measurement precision and the signal processing capacity are improved through a time correlation single photon counting method, the grating can be inscribed on a sapphire optical fiber, and the method is suitable for temperature monitoring in the high-temperature field of engine turbine blades and the like; and meanwhile, the device has a multi-point temperature measurement effect with high precision and strong high-temperature adaptability, and is of great significance to high-temperature environment monitoring.

The invention discloses a method for preparing a graphene copper rod by multi-pass continuous extrusion, which comprises the following steps of: mixing copper powder and graphene powder, and annealing with a copper pipe in inert gas; a continuous extrusion process is adopted, mixed powder of copper and graphene is added into a copper pipe, and the graphene copper rod is prepared through multi-pass continuous extrusion. According to the preparation method, process control and operation are convenient, the graphene copper mixed powder is loaded into the copper pipe for continuous extrusion, the preparation process of the graphene copper composite material is simplified, meanwhile, the copper pipe is beneficial to keeping the stable form of the copper powder in the extrusion process, and the complexity of process control is reduced.

The invention relates to a water-in-oil nanoemulsion with high drug loading capacity as well as a preparation method and application of the water-in-oil nanoemulsion. The water-in-oil nanoemulsion is prepared by dropwise adding a water-phase solution containing tocoxolam into an oil-phase solution, the water-phase solution is prepared from tocopherol, a cosurfactant, a hydrophilic active matter, a preservative and water; the oil phase solution is composed of liquid grease and a surfactant; the water-in-oil nanoemulsion is prepared from the following components in percentage by mass: 50 to 64 percent of liquid grease, 10 to 17 percent of surfactant, 5 to 8 percent of tocoxolam, 5 to 12 percent of surfactant, 0.1 to 6 percent of hydrophilic active matter, 0.2 to 0.6 percent of preservative and 8 to 15 percent of water. The water-in-oil nanoemulsion has the advantages of high drug loading capacity, good skin permeability, high retention volume in skin cells, high bioavailability, good stability, high safety and the like, and can be used in pure oil cosmetics.

The utility model belongs to the technical field of geotechnical engineering, and discloses a split mounting type combined pouring retaining wall protection structure which comprises a foundation and at least one layer of modular retaining wall blocks located on the foundation. The foundation is made of concrete, a reinforcing mesh is arranged in the foundation, a plurality of center hole reinforcing cages integrated with the reinforcing mesh are welded to the reinforcing mesh, and the modular retaining wall blocks close to the foundation are embedded into the foundation. The modular retaining wall block comprises a plurality of prefabricated blocks, the number of the prefabricated blocks is the same as that of the center hole reinforcement cages, the top plate faces and the bottom plate faces of the prefabricated blocks are equilateral triangles with the same size, and center hole reinforcement cage mounting holes are formed in plate bodies of the prefabricated blocks. Due to the adoption of the structure, the construction cost is reduced, the construction efficiency is improved, and the construction safety is effectively guaranteed.

The application provides a method for microwave-assisted preparation of tetragonal barium titanate powder, comprising the following steps: mixing a barium source and a titanium source to obtain a non-hydrolytic sol; performing a microwave-assisted gelation reaction on the non-hydrolytic sol to obtain a wet gel; drying the wet gel to obtain a dry gel; performing heat treatment on the dry gel in a protective atmosphere to obtain a pre-sintered powder; performing microwave-assisted calcination on the pre-sintered powder to obtain a calcined powder; and performing washing and drying on the calcined powder to obtain the barium titanate powder. The method provided by the application performs a microwave-assisted gelation reaction on a sol, and through the microwave effect in the two steps of gelation and calcination, the gelation time can be shortened and the calcination temperature can be reduced, and the synergistic regulation of high purity, ultra-fine particle size and high tetragonal phase content of the barium titanate powder is realized simultaneously. The method provided by the application is simple and controllable, low in energy consumption, suitable for industrial large-scale production, and the prepared barium titanate powder can be widely applied to the preparation of ceramic capacitors, and the reliability and miniaturization capability of the device are significantly improved.

The invention provides Cu-containing oriented silicon steel and a preparation method thereof, and belongs to the technical field of oriented silicon steel preparation. The method comprises the following steps that raw materials are smelted to obtain a Cu-containing oriented silicon steel casting blank, then the casting blank is sequentially subjected to hot rolling, normalizing treatment, cold rolling, decarburization annealing treatment and gradient temperature annealing treatment, and the Cu-containing oriented silicon steel is obtained. Wherein the casting blank is prepared from the following components in percentage by weight: 0.03 to 0.06 percent of C, 2.8 to 3.0 percent of Si, 1.0 to 1.3 percent of Cu and the balance of Fe and inevitable impurities. By adopting the method, the step of heating and purifying the steel plate at high temperature for a long time in the prior art is omitted, the energy consumption is greatly reduced, and the production efficiency is improved. The magnetic property B8 of the prepared Cu-containing oriented silicon steel ranges from 1.76 T to 1.82 T, and the iron loss P17 / 50 ranges from 1.40 W / kg to 1.35 W / kg.

The invention discloses a control method for uniformly controlling multi-type longitudinal separation of a plate glass production line, which comprises the following steps: S1, a longitudinal breaking and longitudinal separation system distributes longitudinal breaking and longitudinal separation tasks for different glass plate types; s2, after detecting that the glass plate enters the process area, the longitudinal breaking-off and longitudinal separation system interacts with a main line tracking system to obtain online glass information; s3, analyzing whether the online glass is matched with the distributed longitudinal breaking and longitudinal separating tasks or not, reading the tool mark position of the glass plate, and judging whether the tool mark position is within the travel range or not; s4, the position of the tool mark is converted into stroke data of a transverse moving motor, and the action permission of an air cylinder in a longitudinal breaking-off and longitudinal separating system is activated; s5, a servo motor is adjusted to act, so that the glass reaches a preset position, and the glass is jacked up by an air cylinder and falls down after jacking time is up; and S6, detecting whether the servo motor and the air cylinder complete actions or not, and feeding back a detection result to an upper monitoring link. The control method can effectively solve the development problem of the special-type longitudinal breaking-off and longitudinal separating system, and the control process is simplified.

The invention discloses a high-oxidation-degree silver oxide pole piece and a preparation method and application thereof. The oxidation degree of the high-oxidation-degree silver oxide pole piece is greater than or equal to 85%. The preparation method of the high-oxidation-degree silver oxide pole piece comprises the following steps: uniformly mixing solid alkali powder with silver powder to obtain mixed silver powder; pressing the mixed silver powder into a silver sheet; and forming the silver sheet, and then washing and drying to obtain the high-oxidation-degree silver oxide pole piece. The oxidation degree of the silver oxide pole piece is higher than that of a traditional silver oxide pole piece; the method disclosed by the invention has the advantages of low cost, simple and controllable technological process and easiness in realizing batch production; when the high-oxidation-degree silver oxide electrode is applied to a battery, the discharge time of the battery is prolonged, and the capacity of the battery is improved.

This invention discloses an infrared camouflage composite yarn, its preparation method, and its application. The preparation process involves first preparing a preform, then dispersing aluminum powder and tin-doped indium oxide powder on a softened film to form an infrared-resistant film. The infrared-resistant film is then coated onto the preform using a layered structure design to prepare a composite preform. Combined with heat treatment, the yarn is then hot-stretched to obtain the improved infrared camouflage composite yarn. The infrared camouflage composite yarn prepared by this invention not only possesses excellent infrared camouflage capability and durability, but the addition of functional particles does not significantly affect the yarn's mechanical properties, such as breaking strength. The functional particles maintain uniform dispersion, improving the uniformity of infrared camouflage performance. This method is suitable for preparing infrared camouflage products, such as military jackets, tents, and backpacks.

The invention discloses a fly ash dioxin removal system and method, relates to the technical field of fly ash treatment, and solves the problems that in the process of removing dioxin in fly ash, the removal efficiency is low, the process is tedious and the cost is high. The system comprises an induced air pipe, a gas-powder mixer, a gas-powder separation assembly, a secondary air pipe, a first temperature sensor installed in the induced air pipe, a fan, a second temperature sensor, a particulate matter detector and a controller, and the fan, the second temperature sensor and the particulate matter detector are installed in the second air pipe. And then the dioxin mixed air obtained after desorption is returned to the furnace for high-temperature oxidation, an existing waste incineration technology is ingeniously applied, online production conditions are fully utilized, no secondary large energy investment exists, and therefore the cost is effectively reduced.

According to the preparation method of the silver-coated copper powder for the solar low-temperature drying slurry, the silver-coated copper powder which is high in oxidation resistance, good in conductivity, complete in coating and capable of being used for the low-temperature slurry can be prepared through the method, and the preparation method is low in production cost, controllable in technological process and high in practicability.

The present invention discloses a fusion protein and a method for preparing recombinant human growth hormone based on the fusion protein. The fusion protein includes a first peptide segment and a second peptide segment, the first peptide segment has an amino acid sequence as shown in SEQ ID NO: 1, the second peptide segment has an amino acid sequence as shown in formula (I), and the N-terminus of the first peptide segment is connected to the C-terminus of the second peptide segment. The inclusion bodies including the fusion protein are obtained by genetic engineering bacteria construction, working seed culture, fermentation tank culture, bacterial recovery, bacterial crushing, inclusion body washing, inclusion body dissolution, and inclusion body renaturation steps, and the recombinant human growth hormone is obtained by filtration ultrafiltration, anion exchange chromatography rough purification, Kex2 enzyme digestion, weak anion exchange chromatography purification, ultrafiltration, sterilization filtration, and freeze-dried storage. The present invention can efficiently prepare recombinant human growth hormone with high purity and high activity, which is suitable for commercial production.

The invention discloses a high-thermal-conductivity composite perovskite catalyst and a preparation method thereof, and belongs to the technical field of waste gas treatment catalysts. The chemical general formula of the high-thermal-conductivity composite perovskite catalyst is MFC / M-N, MFC is catalytic active center perovskite, and the mass fraction of MFC is 60-80 wt.%; m is a catalyst carrier, selects a BN high-thermal-conductivity carrier, and accounts for 9-30 wt.% of the mass of the catalyst; n is a metal auxiliary agent La and accounts for 1-30 wt.% of the mass of the catalyst. According to the high-thermal-conductivity composite perovskite catalyst and the preparation method thereof, the high-thermal-conductivity material is adopted as the carrier, the metal additive is introduced, reaction heat is rapidly and uniformly dispersed by means of the high-thermal-conductivity carrier, and thermal management of the catalyst is improved; and the metal additive inhibits high-temperature sintering agglomeration by increasing the defects of the catalyst. The combination of the two significantly improves the high-temperature catalytic stability, aging resistance and carbon deposition performance of the catalyst.

The invention discloses a biomass-based electro-adsorption electrode material for heavy metal wastewater treatment as well as a preparation method and application of the biomass-based electro-adsorption electrode material. The preparation method comprises the following steps: (I) by taking wheat straw as a raw material, cooking the wheat straw with sodium sulfite for delignification pretreatment, and drying and grinding the wheat straw to obtain straw fiber powder; (II) adding NH4H2PO4 into the straw fiber powder to carry out NP co-doping, and carrying out high-temperature pyrolysis in an inert protective atmosphere to obtain a porous carbon active substance; and (III) mixing and homogenizing the porous carbon active substance, carbon black and PVDF in proportion, brushing on a current collector, and drying to obtain the electro-adsorption electrode material. The method is simple in process, green and efficient, the obtained electrode does not need chemical elution regeneration, secondary pollution is avoided, the adsorption capacity of heavy metals such as Pb < 2 + >, Cd < 2 + > and Cu < 2 + > is high, and the requirements of deep removal and resource recovery of heavy metal wastewater can be met.

The present invention provides a method for removing residual antimony in medium-low carbon steel liquid. In this method, antimony-containing steel is melted in an inert atmosphere at a temperature of 1550-1650°C; a certain amount of calcium-silicon-aluminum refined slag is applied to the surface of the antimony-containing steel liquid for desulfurization treatment; a certain amount of aluminum particles are added for deep deoxidation treatment; then, a refining agent calcium carbide with a content of 10-50wt% of the total mass of the calcium-silicon-aluminum refined slag is added for stirring, and then slag is removed to obtain medium-low carbon steel liquid with antimony removed. This method enables the removal rate of antimony in steel to reach 30.6-46.8%, and the sulfur content can be controlled at an extremely low level. While taking into account the antimony removal efficiency and low production cost, the method is also compatible with the existing steelmaking process and steelmaking and refining operations to be carried out simultaneously; and the process is simpler and the process time is short, which is suitable for large-scale industrial application; it overcomes the technical disadvantages of the existing antimony removal process in steel liquid, such as high production cost, large iron loss, and strict equipment requirements.

The present invention relates to the technical field of plastic sealing ring processing, and specifically to a device and method for preparing a high-temperature alloy sealing ring from a seamless tube blank. The device includes a heating and cutting machine, a base, and a hot extrusion forming mechanism, a tube blank self-rotating feeder, and a tube blank axial feeder, which are sequentially arranged on the base, wherein the tube blank self-rotating feeder is used to clamp the seamless tube blank and can drive the seamless tube blank to rotate circumferentially, and the tube blank axial feeder is used to axially drive and feed at the non-processing end of the seamless tube blank; the hot extrusion forming mechanism is used to perform hot extrusion forming on the processing end of the seamless tube blank, and the heating and cutting machine is used to heat the front end of the seamless tube blank and cut the hot extruded high-temperature alloy sealing ring with a W-shaped cross section. The present invention realizes the process of preparing a high-temperature alloy sealing ring with a W-shaped cross section, and the forming process is controllable and has high forming accuracy. It meets the process requirements of the complex cross-sectional shape of the W-shaped sealing ring and improves the reliability of the sealing ring and the service performance of the engine.

This invention discloses a method for preparing an Au / Pt nanowire catalyst for ammonia oxidation. The method includes: firstly, dissolving chloroauric acid and 1-naphthol in a mixed solvent of ultrapure water and ethanol to obtain a golden solution; reacting the obtained golden solution under constant temperature conditions, and obtaining a black precipitate after centrifugation and washing; adding the black precipitate to n-hexane for ultrasonic dispersion, centrifuging and washing again, and then adding oleylamine and dodecylamine for ultrasonic treatment to obtain a black solution; adding hexadecyltrimethylammonium chloride, 1,2-butanediol, platinum acetylacetonate, and oleylamine to the black solution, and mixing evenly to obtain a light yellow solution; ultrasonicating the light yellow solution and reacting it under constant temperature conditions, followed by centrifugation and washing to obtain the black precipitate, which is the Au / Pt nanowire catalyst. This catalyst has a one-dimensional chain-like Au-supported structure with uniformly grown Pt-based nanodendrons on its surface, forming a typical epitaxial growth structure. This structure not only has high atomic utilization and excellent structural stability, but also abundant active sites and good electron transfer efficiency, which is beneficial to mass transfer and charge transfer during the ammonia oxidation reaction. The Au / Pt nanowire catalyst prepared by this invention not only has significant ammonia oxidation catalytic performance, but also has good stability, a controllable preparation process, and is easy to prepare on a large scale.

The invention provides a method for recovering manganese from a manganese-containing waste lithium ion battery. The method comprises the following steps: obtaining a copper-manganese solution from the manganese-containing waste lithium ion battery; adding a copper removal agent into the copper-manganese liquid, and filtering after reaction to obtain copper-removed liquid; adding pure water into a reaction kettle, heating, simultaneously adding the copper-removed solution and an alkaline precipitant aqueous solution, reacting, and filtering to obtain a crude manganese hydroxide filter cake; adding water into the coarse manganese hydroxide filter cake for size mixing, adding a complex EDTA for complexing, and filtering to obtain a manganese hydroxide filter cake; adding water into the manganese hydroxide filter cake for size mixing, adding an oxidizing agent, stirring for reaction, and filtering to obtain a manganous-manganic oxide filter cake; and washing and drying the manganous-manganic oxide filter cake to obtain the battery grade manganous-manganic oxide. The method for recovering manganese in the manganese-containing waste lithium ion battery provided by the invention is convenient to operate, short in process, low in cost, small in environmental pollution and high in recovery rate.

The invention relates to the technical field of ignition resistor preparation, and discloses an ignition resistor preparation method which comprises the following steps: preparing a conductive material, and mixing a conductive oxide and an auxiliary agent to form conductive slurry; coating conductive slurry on the surface of the substrate to form a uniform resistance layer; carrying out sintering treatment on the coated substrate; the resistance value is adjusted through laser trimming; coating a protective coating on the surface of the resistive layer, and curing; testing the performance of resistor products, and screening qualified products; wherein the conductive material comprises ruthenium oxide and tin oxide, a microwave sintering process is adopted in the sintering treatment, and a trimming path is dynamically adjusted through real-time online monitoring in the laser trimming process. By adopting a composite conductive material of ruthenium oxide and tin oxide and adding nanoscale cerium oxide as an auxiliary agent, the preparation process and the material ratio of the conductive paste are optimized, and the technical effect of remarkably improving the conductive performance and the long-term stability of the resistor is achieved.

The invention relates to the technical field of high polymer materials, and discloses polyarylsulfone and a preparation process thereof. The preparation process of the polyarylsulfone comprises the following steps: adding di-(4-chlorodiphenyl sulfone), water and an alkaline compound into a solvent to form a mixed solution; under a protective atmosphere, controlling the temperature of the mixed solution to be 130-150 DEG C, and reacting for 4-6 hours to obtain an intermediate product; adding di-(4-chlorodiphenyl sulfone) and a solvent into the intermediate product, controlling the temperature to be 160-220 DEG C, and reacting for 4-8 hours to prepare a polyarylsulfone solution; the polyarylsulfone solution is filtered, smashed, washed and dried, and polyarylsulfone is prepared. According to the technical scheme, a heavy metal catalyst does not need to be used, the cost is effectively reduced, and the problems of environmental pollution and equipment corrosion are avoided. And the whole reaction process has high chemical selectivity and few side reactions, and the prepared polyarylsulfone product has high yield and purity.

The invention discloses a tool and method for controlling the depth of a contaminated layer on the surface of titanium alloy, and the tool comprises a box body which is provided with an opening in the top and is used for accommodating a titanium alloy part to be treated; the top cover assembly is connected with the opening of the box body, the top cover assembly comprises a ceramic matrix composite one-way cover and a one-way exhaust valve, a plurality of vent holes are formed in the ceramic matrix composite one-way cover, and the one-way exhaust valve is installed at the vent holes; the sealing piece is arranged at the joint of the box body and the sealing cover assembly, and the sealing piece is an annular aerogel gasket; the internal bearing mechanism comprises a plurality of internal bearing assemblies, and the plurality of internal bearing assemblies are arranged in the box body; and the pre-vacuumizing valve is arranged on the box body. According to the method, the depth of the surface pollution layer of the titanium alloy subjected to heat treatment can be stably controlled within 0.05 mm and is obviously superior to the upper limit of 0.08 mm required by the existing industrial standard.

The invention discloses a precursor of a ternary positive electrode material, a preparation method of the precursor, the ternary positive electrode material and a battery, and belongs to the technical field of battery materials. The chemical general formula of the precursor is Ni < x > Co < y > Mn < z > (OH) < 2 >, and x is greater than or equal to 0.8 and less than or equal to 1, 0 lt; y is less than or equal to 0.1, 0lt; z < = 0.1, and x + y + z = 1; the profile of the precursor is in a sunflower shape. The positive electrode material obtained after the precursor is mixed with lithium and sintered is small in internal anisotropic stress, low in internal pore zigzag coefficient and short in ion transmission distance, and the petal-shaped shell is high in orderliness, so that the positive electrode material has an ordered and efficient de-intercalation channel, and the problem that the electrical property is degraded due to the fact that a high-nickel material is prone to deformation in electrochemical circulation is effectively solved; meanwhile, the material has a relatively high specific surface area, can be in more sufficient contact and more uniform mixing when being mixed and sintered with a lithium source to prepare a positive electrode material, and has higher reaction activity, so that the capacity and cycle performance of the obtained positive electrode active material can be remarkably improved.

The invention discloses a method for improving gelation activity of waste glass powder through physical and chemical synergistic activation, and belongs to the field of building materials. The invention aims to solve the problems of insufficient gelation activity, low activation efficiency, unstable activation effect and the like of the waste glass powder. According to the method, waste glass and a chemical activator (any one of silica fume, nano silicon dioxide, nano titanium dioxide, calcite and alum) are put into a ball mill by adopting a staged feeding strategy, and a four-stage grinding ball matching and variable-speed intermittent process of high-speed ball milling, staying and medium-speed ball milling is adopted; the gelation activity of the waste glass powder is remarkably improved through physical and chemical synergistic activation. The method has the characteristics of high activation efficiency, remarkable activity improvement, controllable technical process and the like, and can be widely applied to resource utilization of the waste glass powder.

The invention discloses a composite structure of a two-dimensional anisotropic material, and belongs to the technical field of thermal management materials, the composite structure comprises at least two external copper-clad layers, the outer side wall of each external copper-clad layer is sleeved with an internal two-dimensional anisotropic heat conduction layer, and the external copper-clad layers are stacked and compounded at a specific angle; the overall thermal conductivity of the external copper-clad layers tends to be balanced in multiple directions, the specific angle is 90 degrees, and the at least two external copper-clad layers are stacked and compounded after being sequentially rotated by 90 degrees; the at least two external copper-clad layers are stacked and compounded at a specific angle, so that the original two-dimensional anisotropic heat conduction directions of all the layers are mutually crossed and compensated, the limitation of a single-layer material in the heat conduction direction is effectively broken through, and the heat conduction performance of the composite structure in multiple directions tends to be balanced; and the heat conduction uniformity and the heat dissipation efficiency are obviously improved.

The invention discloses a method for green preparation of ammonium persulfate from sodium sulfate solid waste based on a membrane technology, and belongs to the technical field of sodium sulfate solid waste recycling, and the method comprises the following steps: S1, system assembly and electrolyte preparation: assembling a three-chamber electrolytic bath according to the sequence of an anode chamber, a cation exchange membrane, an intermediate chamber, a precise control membrane and a cathode chamber, preparing an anode chamber sulfuric acid electrolyte, an intermediate chamber sodium sulfate raw material solution and a cathode chamber ammonium bicarbonate initial solution; s2, starting the system and establishing a steady state: introducing ammonia gas into the cathode chamber and adjusting the flow of the ammonia gas to dynamically stabilize the pH value of the cathode chamber in a target interval of 9.0-9.5 so as to establish an NH4 < + > storage area in the cathode chamber; s3, continuous operation and dynamic material balance: after the system enters a steady state, extracting an anode chamber mixed solution, and extracting a part of cathode chamber mixed solution in a cathode chamber; supplementing materials in each chamber; s4, crystallizing and purifying ammonium persulfate; according to the invention, the technical problem of direct electro-synthesis of ammonium persulfate from sodium sulfate is solved through the innovation of a precise control membrane design and an ion migration strategy.

The application relates to the technical field of underwater engineering protection, in particular to a rigid framework-flexible filling collaborative scour protection body and a construction method and application thereof. The rigid framework-flexible filling collaborative scour protection body is constructed by using a homologous silt-based solidified soil material system, has close interface combination, high integrity, outstanding scour resistance, can effectively block secondary scouring, is suitable for complex marine hydrodynamic environments, and can meet the actual needs of offshore wind power, cross-sea bridges and other marine engineering structure foundation scour protection and repair. Meanwhile, the preparation method and the construction method of the rigid framework-flexible filling collaborative scour protection body are controllable, feasible, the raw materials are widely sourced and solid waste resource utilization is realized, green low-carbon benefits are remarkable, and the method is suitable for large-scale engineering application.

The application discloses a method for improving cementitious activity of waste glass powder by physical and chemical synergistic activation, and belongs to the field of building materials. The method aims to solve the problems of insufficient cementitious activity, low activation efficiency and unstable activation effect of waste glass powder. The method adopts a segmented feeding strategy to put waste glass and a chemical activator (any one of silica fume, nano-silicon dioxide, nano-titanium dioxide, calcite and alum) into a ball mill, adopts a four-stage matching grinding ball and a variable-speed intermittent process of "high-speed ball milling-stopping-moderate-speed ball milling", and significantly improves the cementitious activity of the waste glass powder through physical and chemical synergistic activation. The method has the characteristics of high activation efficiency, significant activity improvement and controllable process, and can be widely applied to resource utilization of waste glass powder.

The invention relates to a modified boron nitride multi-component heat-insulating composite material as well as a preparation method and application thereof, and belongs to the technical field of heat-insulating composite materials. The composite material comprises the following components in percentage by mass: 30-70% of paraffin, 5-40% of silane coupling agent modified boron nitride and 10-60% of titanium dioxide, the sum of the three components is 100%. The compatibility and dispersity of boron nitride and a paraffin matrix are fundamentally improved through surface modification, and the boron nitride and titanium dioxide cooperate to construct a multi-mechanism coupled slow ablation system, so that the corrosion inhibitor superior to a traditional titanium dioxide-paraffin corrosion inhibitor is obtained. According to the application of the material in slow ablation of the artillery barrel, through the synergistic effect of multiple mechanisms such as phase change heat absorption of paraffin, cold air film heat insulation, a TiO2 heat insulation layer and modified BN high-temperature solid lubrication, the overall ablation reduction performance is improved by 10% or above compared with that of a traditional titanium dioxide-paraffin corrosion inhibitor without BN; and the dispersity and macroscopic uniformity of the inorganic filler in the composite system are obviously improved.

The invention provides a carbon fiber surface electrolyte residual quantity detection method, which comprises: placing a first preset mass of carbon fiber in a container, adding a second preset mass of deionized water into the container, and extracting an electrolyte on the surface of the carbon fiber under a preset condition to obtain an electrolyte leachate; transferring the electrolyte leaching solution to a volumetric flask, and fixing the volume of the electrolyte leaching solution to a third preset mass to obtain a solution to be detected; the conductivity of the solution to be detected is obtained, and the electrolyte residual quantity on the surface of the carbon fiber is obtained. According to the method provided by the invention, the electrolyte concentration of the to-be-detected solution in unit volume is accurately represented by measuring the electrolyte of the to-be-detected solution, so that the electrolyte residual quantity on the surface of the carbon fiber can be accurately determined, and process control and quality detection in a carbon fiber production process are facilitated.