150results about How to "Liquidity" patented technology

The invention relates to the technical field of self-leveling mortar, in particular to tailing gravel paste-based self-leveling mortar and a preparation method thereof. The tailing sand paste-based self-leveling mortar is prepared from the following raw materials in parts by weight: 60 to 70 parts of tailing sand, 30 to 40 parts of fly ash, 30 to 50 parts of cementing material, 18 to 25 parts of water, 1 to 10 parts of polymer modifier, 0.1 to 1 part of anti-crack fiber, 0.5 to 1.5 parts of binder and 0 to 0.18 part of water-retaining agent. The method is simple to operate, and the tailing sand is efficiently utilized, so that the problem of waste of tailing sand resources is solved.

The invention discloses a marine concrete underwater engineering geopolymer repairing material. The repairing material is prepared from the following raw materials in parts by weight: 10-15 parts of a composite alkali activator, 30-40 parts of granulated blast furnace slag powder, 20-25 parts of fly ash, 10-15 parts of cement, 1-2 parts of silica fume, 1-2 parts of wollastonite, 0.1-0.3 part of a flocculating agent, 0.2-0.5 part of a water reducing agent, 2-5 parts of an expanding agent, 0.1-0.3 part of a thickening time control agent, 3-5 parts of latex powder and 5-10 parts of water. The marine concrete underwater engineering geopolymer repairing material has the characteristics of self-leveling, self-compacting, vibration-free, high early strength, good dispersion resistance, strong binding power with an original cement concrete base material, capability of realizing self-falling construction in water and moderate price, and can better meet the performance requirements of underwater repairing of marine concrete structures.

The invention discloses a gas turbine TCA / FGH large temperature difference driven S-CO2 power cycle system which comprises a gas compressor, a combustion chamber, a gas turbine, a TCA heat exchanger, an FGH heat exchanger, an S-CO2 compressor and an S-CO2 turbine, a hot side inlet and outlet of the TCA heat exchanger is connected with a hot air pipeline, the cold side of the TCA heat exchanger is connected with an S-CO2 working medium circulating device, the hot side of the FGH heat exchanger is connected with the S-CO2 working medium circulating device, and the hot side of the FGH heat exchanger is connected with the S-CO2 working medium circulating device. The cold side of the TCA heat exchanger is connected with a cold natural gas pipeline, the hot side of the TCA heat exchanger absorbs heat of high-temperature air, the air temperature is reduced to a set value, meanwhile, supercritical carbon dioxide after pressure boosting is heated, an S-CO2 turbine is pushed to do work, and natural gas is heated to the set temperature in the FGH heat exchanger. The TCA / FGH temperature difference condition is utilized, the S-CO2 power cycle is driven to output extra electric energy, the peak regulation capacity of the unit is improved, and meanwhile the problem of TCA / FGH heat imbalance is solved.

The invention relates to an event-driven tactile sensing method and system based on a pulse graph neural network, and belongs to the technical field of tactile sensing and robot control. The method comprises the following steps: S1, extracting main features from data collected by an event-driven touch sensor; s2, encoding the main features extracted from the tactile sensor data; s3, using a spiking neural network to further learn feature embedding; s4, the encoded features are processed through a graph neural network; and S5, identifying the category or state of the target object by adopting a voting mechanism. According to the scheme, through the graph neural network, the graph based on the space structure of the tactile sensing unit can be automatically constructed, and local and global features are efficiently extracted; the pulse neural network is used for processing event-driven data, so that the energy consumption is remarkably reduced and the calculation efficiency is improved; the method has strong generalization ability, can adapt to different tactile sensor configurations and application scenes, and has excellent performance when processing real-time tactile perception tasks.

The invention discloses a quick and long-acting gynecological antibacterial gel and a preparation method thereof. According to the formula of the gynecological antibacterial gel, a plurality of key components are selected and combined, and the gynecological antibacterial gel specifically comprises the following components in parts by weight: 5-15 parts of poloxamer, 0.5-1 part of carbomer, 0.5-1 part of N, N-dicarboxymethyl alanine trisodium salt, 0.2-0.1 part of carboxymethyl cellulose and 50-250ppm stable chlorine dioxide powder. The preparation method of the gynecological antibacterial gel comprises the five steps of chlorine dioxide chelating solution preparation, gel matrix preparation, gel forming, pH value adjustment and finished product packaging, all the steps are accurately controlled, and the product quality is ensured. The invention provides a gynecological gel product which is high in initial flowability, can be quickly gelated in vivo and has a quick long-acting antibacterial function, solves the problems of non-ideal antibacterial effect, inconvenience in use, insufficient safety and the like of an existing gynecological nursing product, ensures the safety and stability of the product, overcomes many defects of a traditional product, and has a good application prospect. And a better choice is provided for female reproductive health care.

The utility model relates to the technical field of electroplating, in particular to a barrel plating device for preventing suction of workpieces, which comprises an electroplating tank and a roller, shaft seats with upward openings are arranged on two opposite sides of the electroplating tank, short shafts are arranged at two ends of the roller, a plurality of groups of through holes are axially arranged on the roller at intervals, and each group comprises a plurality of through holes. The rollers are arranged on the same circumference at intervals; a circulating pump is arranged below the electroplating tank, an output pipe of the circulating pump extends into the electroplating tank, a plurality of vertically upward spray heads are arranged on the output pipe in the electroplating tank at intervals, and the position of each spray head corresponds to the position of each group of through holes. According to the barrel plating device capable of preventing the workpieces from being attracted, electroplating liquid is sprayed upwards from the spray head through the circulating pump and enters the barrel through the through holes of the roller, so that the mobility of the electroplating liquid in the roller is higher, and the workpieces are better separated when the workpieces roll over, so that the electroplating uniformity and the electroplating quality of the workpieces are improved.

The invention provides a gas extraction drilling hole sealing material with CO reaching the standard and a preparation method thereof, and relates to the field of coal mining. The concrete comprises the following raw materials in parts by weight: 90-100 parts of cement, 3-10 parts of an accelerator, 5-15 parts of anhydrous sodium sulphate, 1-2.5 parts of a water reducing agent, 1-4 parts of methyl cellulose, 1.5-6 parts of sodium percarbonate, 3-5 parts of modified montmorillonite, 1-3 parts of porous alumina particles and 1-3 parts of polyvinyl alcohol. The preparation method comprises the following steps: uniformly mixing sodium percarbonate and porous alumina to obtain a first mixture; mixing polyvinyl alcohol and water, heating and stirring, adding the modified montmorillonite, stirring for 1-2 hours, standing for 20-24 hours, drying and grinding to obtain a second mixture; and uniformly mixing the first mixture, the second mixture and other raw materials. The hole sealing material does not generate CO, and has the advantages of being high in fluidity, large in expansion rate, uniform in distribution, high in compressive strength and good in compactness.

The invention discloses a pharmaceutical composition containing betaine phosphate, a preparation method of the pharmaceutical composition and application of the pharmaceutical composition in preparation of drugs for treating methylmalonic acidmia combined with homocysteinemia, and belongs to the technical field of betaine, the preparation method comprises the following steps: preparing betaine phosphate, and compounding; the compounding comprises the following steps: preparing hydroxyl calcium carbonate, performing primary compounding, performing secondary compounding and coating; according to the pharmaceutical composition containing the phosphate betaine, the treatment effect on methylmalonic acidmia combined with homocysteinemia can be guaranteed, meanwhile, the purity and yield of the phosphate betaine can be improved through the preparation method of the pharmaceutical composition containing the phosphate betaine, agglomeration of crystals of the phosphate betaine is avoided, and the purity of the phosphate betaine is improved. And the prepared pharmaceutical composition containing betaine phosphate has the advantages of weak moisture absorption, strong fluidity and good high temperature resistance.

The invention relates to a manganese zinc ferrite composite material as well as an internal mixing method and application thereof. The manganese zinc ferrite composite material comprises manganese zinc ferrite powder and an additive, the additives comprise a framework material, a binder, a lubricant and an antioxidant; the average particle size D50 of the manganese zinc ferrite powder is 0.95 [mu] m to 1.75 [mu] m. According to the invention, the additive comprising the framework material, the binder, the lubricant and the antioxidant is mixed with the manganese-zinc ferrite powder with the average particle size D50 of 0.95-1.75 [mu] m, and the manganese-zinc ferrite powder with the particle size can be uniformly dispersed in the manganese-zinc ferrite composite material under the combined action of the framework material, the binder, the lubricant and the antioxidant; and therefore, the uniform consistency of internal mixing is guaranteed, the problem that internal mixing is difficult due to the fact that the manganese zinc ferrite powder is small in particle size is solved, the quality of soft magnetic material injection molding products is improved, large-scale production is promoted, and the requirement of the market for high-performance soft magnetic materials is met.

The invention relates to the technical field of material screening and cleaning, in particular to a swing type material screening and cleaning device. According to the technical scheme, the vibrating screen comprises a screen drum, a supporting frame, a bottom plate and a second motor, a first screen, a second screen and a third screen which are connected in a sleeved mode layer by layer and are in an inclined cylindrical shape are arranged in the screen drum, rotating seats which are symmetrically distributed are arranged at the upper end of the supporting frame, and the outer wall of the screen drum is connected with rotating rings rotationally installed in the rotating seats in a sleeved mode; the outer wall of the screen drum is sleeved with a gear ring, a first motor is fixedly arranged on one side of the upper portion of the supporting frame, and a gear meshed with the gear ring is arranged at the output end of the first motor. The screening structure is installed in the screen drum, sputtering of materials is avoided, meanwhile, multi-stage screening of the materials and classified use of refined materials are conducted, the screening structure rotates in the screening process, the blocking risk is reduced, and the use stability of the screening structure is improved.

The utility model relates to the technical field of constructional engineering, in particular to a cement paste test piece mould, which comprises a bottom plate and a sleeve, a groove is arranged on the bottom plate, the groove is matched and connected with the bottom of the sleeve, two ends of the bottom plate are provided with hook sheets, the sleeve is provided with a hasp, and the hasp is matched and connected with the hook sheets. The utility model has the beneficial effects that: 1, the bottom plate is provided with the groove and the sealing ring, so that cement paste with high water-binder ratio and high flowability can be effectively prevented from flowing out from the joint of the mould; and 2, the mold is simple in composition, convenient to operate, detachable and reusable.

This invention relates to the field of nuclear medicine PET technology, and more particularly to a method for preparing a radionuclide beam source. The method includes: mixing addition-type liquid silicone rubber with a radionuclide to obtain a liquid mixture; placing the liquid mixture in a syringe and removing air bubbles; connecting the tip of the syringe needle to a hollow casing; filling the casing with the liquid mixture and sealing it; then curing and sealing by welding; the radionuclide includes one or more of Ge-68, Cs-137, Co-60, P-32, Sr-90, Y-90, Na-22, Na-24, Sr-89, Lu-177, and Rh-106. This invention provides a method for preparing a radionuclide beam source for nuclear medicine PET. 68 The manufacturing method of the Ge wire source features room temperature curing with no byproducts, uniformity without bubbles, and long-term use at temperatures ranging from -50 to 200 degrees Celsius, meeting [the requirements]. 68 Safety performance level requirements for Ge line sources.

The application discloses a range hood and a control method thereof, and relates to the technical field of kitchen appliances, and aims to solve the problem that oil dirt in an oil cup is prone to deterioration, and the range hood comprises a machine body, an air suction assembly, an oil cup and a condensation assembly, the machine body is internally provided with a smoke exhaust channel, and the machine body is provided with a communication hole in communication with the smoke exhaust channel; the air suction assembly is arranged in the machine body and is used for sucking oil fume into the smoke exhaust channel; the oil cup is arranged on the machine body and is located outside the smoke exhaust channel and is used for collecting oil; the condensation assembly is arranged on the machine body, the condensation assembly comprises a hot end and a cold end, the hot end is located in the smoke exhaust channel, the cold end penetrates through the communication hole and extends out of the smoke exhaust channel, the cold end is used for absorbing heat in the oil cup, and the heat on the cold end can be transmitted to the hot end. The application is used for discharging oil fume.

The preparation method comprises the following steps: uniformly mixing a formaldehyde aqueous solution with urea, carrying out a heating reaction, adding an oxidized sodium carboxymethyl cellulose aqueous solution into the obtained reaction solution, uniformly mixing, and adding potassium dihydrogen phosphate to obtain a solution A; uniformly mixing a gelatin aqueous solution and a sulfydryl polyvinyl alcohol aqueous solution to obtain a solution B; and mixing the solution A with the solution B to obtain the biodegradable polymer sustained and controlled release liquid fertilizer. The slow / controlled-release liquid fertilizer disclosed by the invention has good fertilization uniformity and slow / controlled-release stability, can be applied in manners of drip irrigation, spraying and the like, can reduce the fertilization times, improve the utilization rate of the fertilizer, better save water and fertilizer, improve the yield and quality of crops, and can better adapt to the requirements of sustainable development and a water and fertilizer integration technology.

The invention discloses a trench isolation structure, a preparation method thereof and a semiconductor device, and the preparation method comprises the steps: providing a semiconductor substrate which comprises a trench; at least the interior of the groove is filled with a sacrificial layer, and the filled sacrificial layer exposes a part of height of the side wall of the groove in the depth direction from the port of the groove to the interior of the groove. A first oxidation film layer is at least formed on the side wall of the groove and above the sacrificial layer in the groove, a first part of the first oxidation film layer is formed on the side wall of the groove, and a gap is formed in the first part; the second portion is formed at the bottom of the gap and on the sacrificial layer. Forming a window on the second part, wherein the window exposes part of the sacrificial layer; and removing the sacrificial layer in the groove based on the window. And filling the gap in the first part with a second oxide film layer until the gap is completely filled with the second oxide film layer. Therefore, the preparation process of the trench isolation structure can be simplified, the preparation difficulty and cost can be reduced, and the performance of the semiconductor device can be improved.

The invention relates to ITO (indium tin oxide) granulation powder as well as a preparation method and application thereof, the preparation method of the ITO granulation powder comprises the following steps: (1) ball-milling and mixing tin oxide, indium oxide, a binder, a dispersant and deionized water to obtain mixed slurry; (2) carrying out spray granulation on the mixed slurry obtained in the step (1) to obtain ITO granulation powder; the rotating speed of the spray granulation in the step (2) is 15000 to 2200rpm (revolutions per minute). By controlling the rotating speed of spray granulation and the using amount of the binder, the ITO granulation powder which is small in particle size, high in fluidity and low in powder breakage rate can be obtained, and the performance requirement of the ITO granulation powder serving as a target raw material can be met.

This invention discloses a large-area photo-chargeable aqueous zinc-ion battery, its preparation method, and its application. The method includes the following steps: Two pieces of glass with a transparent conductive layer coated on one side are taken. A positive electrode material is placed on the coated layer of one of the glass pieces. A glass fiber separator and a negative electrode material are sequentially covered on top of the positive electrode material. The other glass piece is then placed on top of the negative electrode material with its coated layer facing down. The positions of the two glass pieces are adjusted so that they are stacked alternately. Pressure is applied to the resulting stacked structure, and three sides are sealed with hot melt adhesive. After the hot melt adhesive has cured, electrolyte is injected into the unsealed side, and then this side is sealed again. The negative electrode of a diode is connected to the glass on the positive electrode side of the battery, and the positive electrode of the diode is connected to the glass on the negative electrode side of the battery, thus obtaining a large-area photo-chargeable aqueous zinc-ion battery. The battery of this invention has the advantages of high light utilization, stable charging, and low loss.

The invention provides anti-corrosion iron powder and a preparation method and application thereof. The anti-corrosion iron powder comprises an iron powder particle base body, the surface of the iron powder particle base body is sequentially coated with a raw tung oil layer and an anti-rust oil layer, and the thickness of the raw tung oil layer is larger than that of the anti-rust oil layer. Due to the double-layer protection, the anti-corrosion iron powder is more stable in the transportation and storage process, through the double-layer anti-corrosion treatment, the iron powder can keep good performance in the long-term storage and transportation process, and therefore it is guaranteed that the setting-off effect of fireworks is not affected. The invention further provides a preparation method and application of the anti-corrosion iron powder.

The invention relates to a stable emulsion type nutritious food and a preparation method thereof, and belongs to the technical field of medical food for special diets, and every 100mL of the stable emulsion type nutritious food contains specific contents of protein peptides, fat, carbohydrates, various vitamins, nicotinamide, folic acid and various mineral compounds. The adhesive is prepared from Arabic gum and high-acyl gellan gum in a specific proportion. Protein peptide is prepared through step-by-step enzymolysis of nattokinase and fig protease, the ratio of Arabic gum to high-acyl gellan gum is adjusted, and the product is obtained through a special preparation method. The problem of solution instability caused by fat floating, precipitation and the like due to high-temperature and high-pressure sterilization and long-term storage when the peptide solution and fat as well as the peptide solution and mineral ions coexist is effectively solved, and the emulsion type formula food for special medical purposes, which has good fluidity, uniform appearance, thermal stability and storage stability, can be obtained.

According to the drying method of the coating machine, a coating is not completely dried in a high-temperature environment, the coating is kept wet when being output from a box body, and then the coating is completely dried under the action of cold air without being heated through the action of the cold air and the coating; and wrinkles, dark marks and surface cracking of the coating in a high-temperature environment are avoided.

The invention discloses low-heat early-strength steel fiber mass concrete and a preparation process thereof, and belongs to the technical field of building materials. The concrete is prepared from cement, a mineral admixture, water, fine aggregate, coarse aggregate and steel fiber according to the mass ratio of 413: 177: 147.5: 657.3: 1050: 27.5. By uniformly adding the steel fibers, the compressive strength and the flowability of the concrete can be improved; pouring is carried out through temperature control, so that concrete is rapidly hydrated at an early stage, and the temperature in a pouring structure can be reduced; various functional monomers are introduced into the prepared water reducing agent, so that the strength and durability of concrete can be greatly improved, the cracking condition of mass concrete is reduced, the early strength of the concrete can be improved, and the production cycle is accelerated; therefore, the prepared concrete is high in early strength, good in crack resistance, low in hydration heat and high in fluidity, and has important application value in the technical field of building materials.

The embodiment of the invention relates to the field of solar cell photovoltaic technology, and provides a flexible perovskite solar cell and a preparation method thereof, and the preparation method of the flexible perovskite solar cell comprises the steps: providing a bearing substrate; forming a poly-p-xylylene layer on the bearing substrate by adopting a chemical vapor deposition process; a laminated structure is formed on the surface, away from the bearing substrate, of the poly-p-xylylene layer, the laminated structure at least comprises a perovskite layer, a first electrode layer and a second electrode layer, the first electrode layer and the second electrode layer are located on the two opposite sides of the perovskite layer, and the first electrode layer is located between the poly-p-xylylene layer and the perovskite layer; after the laminated structure is formed, a stripping process is performed to strip the carrier substrate from the poly-p-xylylene layer. According to the embodiment of the invention, at least the preparation cost of the flexible perovskite solar cell can be reduced, and the performance and preparation efficiency of the flexible perovskite solar cell can be improved.

The utility model discloses a filter for filtering glue, which relates to the technical field of filters and comprises a filter body, a metal filter cartridge mounted in the filter body and used for filtering glue, and a dredging mechanism mounted on the filter body and used for dredging the metal filter cartridge, the dredging mechanism comprises a screw fixedly arranged at the center in the metal filter cartridge, a cleaning rod rotationally arranged on the outer wall of the bottom end of the screw, and bristles fixedly arranged on the outer side of the cleaning rod and used for dredging filter holes in the metal filter cartridge, and a nut used for limiting the cleaning rod is arranged on the outer wall of the bottom end of the screw in a threaded mode. By rotating the cleaning rod, the rotating bristles can be driven to dredge the filter holes in the metal filter cartridge, so that the anti-blocking performance of the filter cartridge is remarkably improved, the service life of the filter cartridge is remarkably prolonged, the cleaning difficulty of the metal filter cartridge is reduced, the cleaning water is reduced, and the maintenance cost is reduced; therefore, the cleaning rod and the bristles can be integrally disassembled and assembled and are convenient to replace.

The utility model relates to a multi-layer filtering assembly for tungsten liquid purification, and aims to solve the problems of poor filtering effect and low efficiency of an existing tungsten liquid filtering device. The assembly comprises a purification barrel, the bottom of which is provided with a liquid outlet pipe and the top of which is provided with a liquid inlet pipe; the first filtering barrel is rotatably arranged in the purifying barrel, a plurality of filtering holes are formed in the first filtering barrel, and to-be-purified tungsten liquid input by the liquid inlet pipe flows into the first filtering barrel; the second filtering barrel is rotatably arranged in the purifying barrel, sleeves the first filtering barrel and is also provided with a plurality of filtering holes; and the third filtering barrel is rotatably arranged in the purifying barrel, is sleeved outside the second filtering barrel and is also provided with a plurality of filtering holes. The first, second and third filter barrels are coaxially arranged, and the apertures of the filter holes are gradually reduced. In addition, a rotating power part is arranged on the purifying barrel, and a rotating shaft of the rotating power part is connected with the three filtering barrels. Tungsten liquid to be purified is discharged from the liquid outlet pipe after being filtered by the three filtering barrels in sequence, the rotating power part drives the filtering barrels to rotate, the filtering efficiency is improved through centrifugal force, and the device has the advantages of good purification effect, high efficiency and the like.

The invention discloses a production method of a 20Mn23AlV large flat steel ingot. The production method comprises the working procedures of EAF furnace primary smelting, LF furnace refining, VD furnace vacuum treatment and die casting pouring. In the die casting pouring process, low-carbon low-melting-point casting powder is used, and the use amount of the casting powder is 2.5-3 kg / t; the casting speed is 12-16 minutes for the body and 3-5 minutes for the cap opening. The weight of the 20Mn23AlV large flat steel ingot produced by the method is 10-30 t, the surface quality of the steel ingot is good, few inclusions exist, and the flaw detection qualification rate is high and reaches 98.5% or above.

The present application relates to the technical field of ceramic preparation, and specifically to an intelligent preparation method for an anti-corrosion ceramic, the method comprising: pouring deionized water into a stirred reactor, sequentially adding fluorozirconic acid, nitric acid, ethanol; chromium trioxide; zirconium nitrate and sodium fluoride; reducing agent; ammonium molybdate and complexing agent; silane coupling agent and stirring to obtain an anti-corrosion ceramic. The present application aims to analyze whether chromium trioxide has reacted completely based on the two aspects of color change and temperature change, and then adjust the amount of ethanol added, control the stirring time, ensure the conversion of hexavalent chromium to trivalent chromium, and enhance the corrosion resistance of the film layer.

The invention discloses a low-carbon high-strength building material and a preparation method thereof. The preparation method comprises the following steps: mixing a liquid monomer and a coupling agent containing a double-bond functional group in proportion to obtain a monomer binder; the preparation method comprises the following steps: deoxidizing a monomer binder, adding an initiator, adding the obtained mixture into a mold filled with solid particles, uniformly mixing the materials by knocking or shaking the mold, and finally initiating in-situ polymerization to obtain the low-carbon high-strength building material. After a liquid monomer capable of forming a hydrogen bond and a coupling agent containing a double-bond functional group are combined for use, the liquid monomer can quickly infiltrate the surfaces of solid particles and enter gaps among the solid particles due to low viscosity and high flowability before in-situ polymerization, so that a self-assembly process is realized; the formed polymer not only can enhance the strength of the bonding system body, but also can enable the polymer chain to be firmly anchored on the surfaces of solid particles. The highest compressive strength of the building material prepared by the method can reach 190 MPa, which is far beyond the highest national standard of common bricks and concrete.

The utility model relates to the field of urban sewage, in particular to an urban sewage environment-friendly system treatment and sedimentation device which comprises a sedimentation tank, a filter tank and a sludge outlet groove, the filter tank is arranged in the sedimentation tank, one side of the top of the sedimentation tank is movably connected with a rotating shaft of the filter tank, and belt wheels are arranged at the two ends of the rotating shaft of the filter tank respectively. The belt pulley is fixedly connected to a rotating shaft of the filter box, the side, away from the rotating shaft of the filter box, of the belt pulley is fixedly connected to an output shaft of a rotating motor, and when too much dirt is accumulated in the filter box, a worker starts the rotating motor, and the output shaft of the rotating motor drives the belt pulley to rotate; the belt pulley rotates and drives a rotating shaft of the filter box to rotate on one side of the top of the sedimentation tank, so that the filter box is movably moved out of the sedimentation tank, dirt in the filter box is poured out, the dirt falls off the filter box and flows out through a mud outlet groove, and the situation that the dirt is hung outside the sedimentation tank and the workload of workers is increased is avoided.

The invention belongs to the technical field of high-performance inorganic fiber composite materials, and discloses a particle reinforcement-retention system, a reinforced high-performance inorganic fiber foam molding paper-based material as well as a preparation method and application of the reinforced high-performance inorganic fiber foam molding paper-based material. A particle reinforcement-retention system is composed of an organic binder, an inorganic cross-linking agent and a fiber impregnating compound, and the mass ratio of the organic binder to the inorganic cross-linking agent to the fiber impregnating compound is (1-10): (5-15): (0.1-5). According to the invention, a particle reinforced retention system is adopted, so that the paper sheet is endowed with good processable strength and excellent surface uniformity, the overall retention rate of the filler is increased from 75% to 87%, and the surface uniformity of the paper sheet is not influenced. The foam molding inorganic fiber paper which is light in weight, resistant to high temperature, rich in pore structure and good in strength is obtained by matching functional filler and a sintering process. The reinforced high-performance inorganic fiber foam molding paper-based material provided by the invention is an excellent fiber structure reinforcement for preparing a fiber reinforced aerogel composite material.

The present invention provides an aromatherapy method based on powdered essential oil, which belongs to the field of aromatherapy technology and includes the following steps: metering: metering the powdered essential oil to quantitatively take the essential oil for use; releasing: applying physical operations to the essential oil put into use, breaking the microcapsules encapsulating the essential oil, and releasing the essential oil therein; diffusion: diluting the essential oil released from the microcapsules with air to diffuse it within a certain spatial range. In the embodiment of the present invention, since powdered essential oil is used, it has the advantage of avoiding the defects of liquid essential oil in storage, transportation and use. Moreover, since powdered essential oil does not have the easy leakage, strong fluidity and strong corrosiveness of liquid essential oil, the requirements for the metering device are relatively simple, which can reduce the design difficulty and cost.