98 results about "Surface chemical" patented technology

The invention belongs to the technical field of materials, and particularly relates to a GaO-coated Mo2C MXene surface chemical adsorption type heterojunction composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding Mo2Ga2C powder into an NH4Cl solution, uniformly mixing, and transferring to a reaction container; (2) hydrothermal reaction; the temperature of the hydrothermal reaction is 200 to 220 DEG C; and (3) after the hydrothermal reaction is finished, carrying out solid-liquid separation, washing and drying to obtain the GaO (at) Mo2C MXene surface chemical adsorption type heterojunction composite material. According to the preparation method disclosed by the invention, synchronous preparation and stable chemical adsorption combination of GaO zero-dimensional particles and Mo2C MXene can be realized; according to the preparation method disclosed by the invention, the preparation process is remarkably simplified, the preparation period is shortened, the production cost is reduced, and the lithium storage performance of the heterojunction is favorably improved.

The application discloses a kind of high-performance tin copper composite conductive paste and preparation method thereof, belong to electronic material technical field.The conductive paste is by tin copper composite powder 60-85%, tin alloy powder 3-12%, organic carrier 10-25%, functional additive 1-5% by mass percentage;Wherein the tin copper composite powder is the surface chemical tin copper powder of three-stage particle size gradient compounding, the tin alloy powder is the gradient melting point alloy powder that Sn58Bi, Sn3.5Ag, Sn0.7Cu are proportionally compounded.The application is synergistically designed by multistage particle size powder and gradient melting alloy, and dense metallurgical bonding conductive network can be formed at low temperature, and the core pain points of existing copper-based conductive paste, such as easy oxidation, high sintering temperature, insufficient conductivity, poor printing stability, are solved.The prepared paste has high conductivity, excellent oxidation resistance, low sintering temperature, good printing suitability and strong adhesion, and can be widely applied in integrated circuit packaging, flexible electronics, solar cells and other fields.

The invention relates to the technical field of ground maintenance, and discloses a stadium ground rapid repairing method, which comprises the steps of in-vivo damage diagnosis and microenvironment analysis, and obtaining a three-dimensional physical damage model and a surface chemical microenvironment model of a to-be-repaired area; dynamically generating a customized repair material formula based on the model; executing self-calibration droplet jetting and photopolymerization dynamics regulation and control repair; and carrying out in-situ multi-modal quality verification after repairing. Wherein in the repairing execution step, closed-loop self-calibration of material components is achieved through spectrum verification in the process, and photopolymerization dynamics is regulated and controlled in a self-adaptive mode according to a surface chemical microenvironment model so as to overcome the field inhibition effect. The invention also provides a system for executing the process. According to the invention, the dynamic adjustment of the repair strategy and the whole-process closed-loop quality control can be realized according to the specific condition of the damage point, and the reliability, consistency and efficiency of the repair are obviously improved.

According to the dynamic environment regulation and control detection device and method for the urban external nitrogen oxide absorption coating, the absorption effect of the coating on nitrogen oxide in the environment is systematically analyzed through multi-dimensional dynamic environment simulation and surface chemical in-situ analysis. According to the invention, a spectrum-pollutant-mechanical stress synergistic effect dynamic simulation system is constructed, and a spectrum-adjustable LED array, a NOx pulse injection module and a temperature and humidity-wind speed composite cavity are adopted, so that coupling simulation of dynamic adjustment of ultraviolet intensity, pollutant pulse input and rapid switching of temperature and humidity is realized; a surface adsorption state real-time monitoring technology is innovatively introduced, the characteristic peak intensity ratio of nitrate to nitrite is analyzed through a micro FTIR probe, and a coating layer micropore blockage early warning mechanism is established.

The invention discloses nanometer graphene oxide and a preparation method thereof. The transverse size of the nanometer graphene oxide is 10-100 nm, and the thickness of the nanometer graphene oxide is 1-2.5 nm. The surface chemical structure meets the following conditions: a C1s peak is analyzed on the basis of X-ray photoelectron spectroscopy, the sum of the atomic percent content of hydroxyl and epoxy groups is not higher than 15%, and the atomic percent content of carboxyl is not lower than 6%. According to the structural design, the structural defect caused by excessive oxidation or reduction in a traditional method is avoided, and the chemical stability and the functionalization potential of the material are improved.

The invention discloses a laser crystal bonding method based on excimer laser surface activation, and belongs to the technical field of laser crystal surface modification and bonding. The activation method comprises the following steps: carrying out precise polishing and cleaning treatment on the surface of a laser crystal to be bonded; and carrying out irradiation activation treatment on the treated crystal surface by adopting excimer laser. The bonding method comprises the following steps of: activating the surfaces of the crystals by adopting the activating method, and laminating the surfaces of the two crystals subjected to activating treatment at room temperature to form an initial optical cement interface; and carrying out heat treatment annealing on the crystal assembly subjected to optical cement. High-energy ultraviolet photons of short-wavelength excimer laser are utilized to initiate surface chemical bond breakage, high-activity sites such as dangling bonds are formed, and the surface energy and the surface activity of the crystal are remarkably improved. The method does not need to introduce a chemical reagent, is small in heat influence, remarkably improves the bonding strength after activation, and is suitable for large-size crystal treatment.

The application discloses a preparation method of 3,4-dihydroxybenzaldehyde / gelatin carbon nano-material based adhesive hydrogel and belongs to the technical field of hydrogel. The application adopts 3,4-dihydroxybenzaldehyde and gelatin as carbon sources, the synthesized nano filler has amphiphilic surface characteristics, can promote the uniform dispersion of the nano filler in the hydrogel network, simultaneously utilizes the multivalent interface interaction to establish a mechanically solid and deformable nano composite structure, and the surface chemical properties of the 3,4-dihydroxybenzaldehyde / gelatin nano filler can not only relieve phase separation, but also promote synergistic energy dissipation through hydrogen bond reconstruction under stress. The design retains the inherent flexibility of the hydrogel, simultaneously greatly improves the electromechanical response capacity of the hydrogel, the obtained hydrogel material has the dual functions of structural support and active sensing medium, can be seamlessly integrated with biological tissues, and does not sacrifice the fidelity of the interface signal.

An electrochemical biosensor chip for the simultaneous quantitative detection of a plurality of different target molecules in a biological fluid, wherein the biosensor chip comprises: a) a substrate with a microfluidic structure designed to guide the biological fluid, b) a plurality of electrochemically isolated detection modules arranged along the microfluidic structure, c) wherein each detection module is structurally assigned to a specific target molecule and differs from the other detection modules by at least one irreversible structural feature selected from: -Electrode geometry, -Electrode surface, -Surface chemistry, - or a combination thereof, d) wherein each detection module comprises a working electrode, a counter electrode and a reference electrode, e) wherein each detection module is linked to a fixed electrochemical redox system which defines a module-specific electrochemical operating window, f) wherein the electrochemical operating windows of the detection modules do not overlap, (g) and wherein the biosensor chip comprises at least one non-functionalized internal reference electrode configured for hardware-based signal normalization, independent of the chemical identity of the target molecules.

This invention discloses a method for preparing zinc-based N,P co-doped porous carbon materials and their applications, belonging to the field of porous carbon material preparation technology. This invention uses chitosan as a carbon and nitrogen source, and polymerizes it with zinc and phosphorus sources in acetic acid solvent to obtain a polymer precursor. The precursor is then treated by high-temperature calcination to obtain a porous carbon material doped with Zn, P, and N atoms. This porous carbon material uses P and N heteroatoms to anchor highly dispersed Zn metal ions, effectively controlling the surface chemical properties of the carbon material, while possessing a high specific surface area, abundant microporous-mesoporous structure, and stable metal active sites. This porous carbon material exhibits excellent adsorption performance when used for the adsorption and removal of SO2 from industrial flue gas.

The invention belongs to the field of zinc battery materials, and particularly relates to a preparation method of a modified zinc metal electrode, a to-be-modified zinc metal negative electrode is placed in a polishing solution for surface modification treatment, and the modified zinc metal electrode is prepared; the polishing solution is a solution in which a compound shown as a formula 1 is dissolved. The invention also comprises the modified zinc metal electrode prepared by the preparation method as well as preparation and application of the modified zinc metal electrode. According to the invention, the zinc electrode is innovatively placed in the polishing solution containing the components in the formula 1 for surface chemical polishing and etching, so that the 002 crystal face can be accidentally and efficiently induced, the texture coefficient of 002 can be improved, moreover, the surface physical and chemical structure of the zinc electrode can be optimized, and the high-current cycle performance can be improved when the zinc electrode is used for assembling a zinc battery.

The application discloses a kind of anticorrosion weather-resistant double-coat powder coating for new energy storage cabinet and preparation method thereof, belong to powder coating processing technical field, for solving the technical problem that powder coating for new energy storage cabinet corrosion resistance in prior art is further improved in outdoor weather resistance and strong medium corrosion resistance.A kind of anticorrosion weather-resistant double-coat powder coating for new energy storage cabinet, including primer and surface coating, the primer includes the following composition by weight parts: epoxy polyester 70-80 parts, anticorrosive filler 28-32 parts, curing agent 3-5 parts and auxiliary additive 2-3 parts.The application is designed by resin molecular structure and inorganic filler surface chemical modification synergistic construction high density, high weather-resistant double-coat system, so that coating still maintains excellent adhesion, impact resistance and long-term corrosion resistance under ultraviolet, impact and strong acid and alkali environment.

The invention provides a particle size detection method of silica powder. The particle size detection method comprises the following steps: carrying out surface modification on the silica powder by adopting a silane coupling agent containing a polyethylene glycol chain segment, and carrying out particle size detection on the surface-modified silica powder. After the silane coupling agent containing the polyethylene glycol chain segment is adopted to perform surface modification on the silica powder, and a long-chain hydrophilic chain segment is chemically grafted on the surface of the silica powder, the silica powder obtains self-emulsifying dispersing capacity, and the dispersity and stability of the silica powder in dispersion liquid are greatly improved. Compared with an ultrasonic method, an external emulsification method and the like, the influence of external factors such as a sampling mode and an ultrasonic condition on the particle size detection result measured by the method is greatly reduced, and the test result is more accurate and stable.

The invention discloses a corrosion-resistant aluminum / diamond composite material which comprises an inner layer composed of aluminum or low-alloy aluminum and diamond, an outer layer composed of aluminum-zinc-magnesium alloy and diamond, an aluminum oxide ceramic film and a zinc-nickel alloy layer, in addition, the invention further discloses a preparation method of the composite material, and the preparation method comprises the steps that firstly, the surfaces of diamond particles are modified; 2, preparing a gradient structure blank; 3, micro-arc oxidation and hole sealing treatment; and 4, carrying out surface chemical plating. Through surface treatment cooperation and gradient structure design, the corrosion resistance and the heat-conducting property are synergistically improved, the heat conductivity is kept at 500 W / (mK) or above, and the corrosion resistance in a humid and high-temperature environment is remarkably improved; the method can be applied to high-heat-flux heat dissipation assemblies such as AI server chips / GPU water-cooling heat dissipation modules and super-computing liquid cooling system heat management materials, and particularly can be applied to electronic equipment in a high-corrosion environment.

The invention relates to the technical field of solid electrolyte, in particular to a surface modification method of LLZO solid electrolyte powder, which comprises the following steps: carrying out surface chemical analysis on original LLZO powder to obtain a lithium carbonate index for representing the surface impurity content of the LLZO powder; determining the qualification of the original powder based on the lithium carbonate index; qualified original powder and the modified precursor solution are mixed and react under preset conditions, a uniform gel coating layer is formed on the surface of the powder, and gel-coated intermediate powder is obtained; characterizing the gel coated intermediate powder to obtain a coating quality index, and judging the coating qualification based on the coating quality index; performing heat treatment on the qualified gel coated intermediate powder to obtain surface modified LLZO powder; and performing electrochemical performance test on the surface modified LLZO powder to obtain a performance evaluation index, and judging the qualification of surface modification. The electrochemical stability of the LLZO powder is improved.

The invention discloses a zero-dimensional indium-based organic-inorganic hybrid perovskite material and a synthesis method thereof, and belongs to the technical field of photoelectric materials, the perovskite material has a general formula, R is one or more organic cations selected from methylamine, formamidine and cesium, and X is one or more halide ions selected from methylamine, formamidine and cesium; the invention further discloses a synthesis method of the material, the synthesis method comprises the steps of precursor solution preparation, coordination regulation and control, solvothermal reaction, product separation, surface modification, purification and drying, and the crystal structure and the surface chemical environment are precisely regulated and controlled through the synergistic effect of coordination regulation and surface passivation. The photoluminescence quantum yield of the material reaches 82% or above, and the material has excellent luminescence performance in a solution state, has ultrahigh environmental, water and thermal stability, and is lead-free, non-toxic and environment-friendly; the material can be widely applied to the photoelectric fields of light emitting diodes, X-ray scintillators, photocatalysis and the like, and the device performance is excellent.

The invention relates to the technical field of high polymer materials, in particular to a directional microporous double-gradient modified atmosphere preservative film and a preparation method thereof.The preparation method comprises the steps that multi-stage cross-linking reaction is conducted on polyvinyl alcohol and an aldehyde cross-linking agent, a nano filler is added into an obtained polymer solution, and precursor slurry is obtained; coating a glass substrate with the precursor slurry to form a wet film, and applying a temperature gradient of 5-15 DEG C from one side to the other side of the film to induce water vapor to enter the wet film to form an initial film blank; performing directional etching on the initial film blank to obtain a directional microporous film, fixing the directional microporous film in an equal reaction cavity, and gradually increasing mixed gas from a low-density side to a high-density side to form a gradient functional film with a double-gradient regulation and control layer; the gradient functional film is subjected to multi-layer hot-pressing composite curing, and the preservative film is obtained. The preservative film cooperates with the physical pore channel gradient and the surface chemical gradient at the microscopic level to form a double-gradient regulation and control mechanism, so that the oxygen permeability and the carbon dioxide permeability are regulated and controlled within a specific range.

The invention provides a high-temperature lubricant for a vacuum isothermal forging process as well as a preparation method and application of the high-temperature lubricant. The lubricant is prepared from the following raw materials: 25 to 35 weight percent of surface activated boron nitride powder, 5 to 8 weight percent of molybdenum disulfide microsphere powder, 8 to 10 weight percent of glass powder, 5 weight percent of potassium silicate, 1 to 2 weight percent of silica gel, 10 to 16 weight percent of feldspar powder, 1.5 to 4 weight percent of flatting agent, 1 to 1.5 weight percent of preservative, 0.8 to 2 weight percent of dispersing agent, 1 to 1.5 weight percent of defoaming agent and the balance of water. The high-performance high-temperature lubricant specially used for the vacuum isothermal forging process is developed by adopting an alkali solution, urea and a silane coupling agent to carry out rapid surface chemical activation treatment and a ball-milling modification technology on boron nitride powder, and has excellent dispersity, lubricity and stability; and the technical defects of the existing glass-based lubricating material are fundamentally overcome.

The invention relates to the field of materials, and discloses a Mn-doped Co3O4 porous nanomaterial and a preparation method and application thereof.The material comprises cobaltosic oxide and a manganese element doped in the cobaltosic oxide, the characteristic peak of the oxygen element O < 1s > in the material has at least two characteristic peaks after peak splitting and fitting, and the characteristic peak of the manganese element O < 1s > in the material is matched with the characteristic peak of the cobalt element O < 1s >. According to the characteristic peak corresponding to the oxygen vacancy of 531-532 eV and the characteristic peak corresponding to the surface chemical adsorption oxygen of 533-534 eV, based on the total amount of the oxygen element, the amount of the oxygen vacancy and the surface chemical adsorption oxygen is 45-60 at%. The Mn-doped Co3O4 porous nano material prepared by the invention is not easy to oxidize, better in stability and lower in working temperature, and the optimal working temperature of the Mn-doped Co3O4 porous nano material is only about 110 DEG C.

The invention relates to a method of producing sorbent granulates for separation of carbon dioxide from a fluid mixture, the method comprising providing particles of an amine functionalized sorbent material having amine groups chemically bound to the sorbent material surface which are ground into powder particles; and granulating the powder particles with added binder into sorbent granulates, wherein the sorbent granulates have a diameter in a range of 0.1-25 millimeter. The invention also relates to said produced sorbent granulate.

The present invention discloses a sequencing chip surface chemical modification apparatus, which comprises: a first rotary valve, which is used for selectively communicating a reagent; the second rotary valve is communicated with the first rotary valve and is used for conveying one reagent to the plurality of sequencing chips; a plurality of chip carrying platforms, wherein each chip carrying platform is used for carrying at least two sequencing chips; the pump is used for sucking or discharging the reagent; the first electromagnetic valve is arranged between the pump and the chip carrying table and is used for selecting the pump to be communicated with the liquid outlet end of the sequencing chip or selecting the pump to be communicated with the waste liquid barrel; the rotating disc assembly is provided with a rotating disc, the first rotating valve, the second rotating valve, the chip carrying table, the first electromagnetic valve and the pump are all arranged on the surface of the rotating disc, the chip carrying table is erected at the position close to the edge of the rotating disc, and the pump is arranged below the chip carrying table. According to the device provided by the embodiment of the invention, the chip processing efficiency is improved, and the manual operation cost and time are saved.

The application discloses a preparation method of a flaky magnetic material for enriching exosomes. The flaky Fe3O4 magnetic material with high specific surface area is taken as a starting point, and a surface of the flaky Fe3O4 magnetic material is coated with silicon dioxide to enhance dispersibility and chemical stability of the flaky Fe3O4 magnetic material, and to provide controllable silicon hydroxyl reaction sites for subsequent surface chemical modification. On this basis, amino active groups are introduced to the surface of the magnetic material through 3-aminopropyl triethoxysilane (APTES), and DSPE-SS-PEG2000-CHO containing a disulfide bond structure is further covalently connected to the surface of the magnetic material. Due to a membrane lipid insertion mechanism, non-antibody-dependent capture of a lipid bilayer exosome can be realized. The flaky magnetic material disclosed by the application shows universality and high affinity advantages, and can realize high affinity capture of a lipid structure of an exosome.

The invention discloses a preparation method of a fine-grain high-hardness high-flatness copper plate, which comprises the following steps: (1) sequentially cleaning and polishing a high-purity oxygen-free copper plate to obtain a pre-rolled plate; (2) stacking a plurality of pre-rolled plates, fixing the edges of the pre-rolled plates, and performing multi-pass rolling at room temperature to realize accumulative ply rolling, so as to obtain rolled plates; (3) carrying out annealing treatment on the rolled plate in an inert atmosphere, and then straightening; (4) the annealed plate is subjected to laser surface melting treatment; and (5) surface chemical mechanical polishing and cleaning are carried out, and the fine-grain high-hardness high-flatness copper plate is obtained. According to the method, the copper plate is subjected to severe plastic deformation through the accumulative roll bonding technology, the refining limit of a traditional machining mode on the grain size is broken through through the large dependent variable, then through laser surface melting, the grain size of the surface of the copper plate is further reduced, meanwhile, the surface hardness is increased to 120-190 HV from 50-60 HV, the polishing efficiency is remarkably improved, and the polishing quality is improved. And finally, the high-flatness copper plate is obtained.

Semiconductor-based direct emitter (33) for use in surface chemistry, comprising: an electron emitter structure (11), comprising: a) an atmosphere-stable electron emission layer (17) made of a mixture of metals, wherein the atmosphere-stable electron emission layer has a first side and a second side; and b) an electron acceleration structure (18) on the first side of the electron emission layer (17) with at least one electrode (22) electrically insulated from the electron acceleration structure (18) to form an acceleration section configured to allow electrons (26) released from the electron emission layer (17) to be selectively accelerated by generating an adjustable electric field, wherein the acceleration section has a length l in a range from 10 nm to 1 µm, an insulating layer (30) arranged on the second side of the electron emission layer (17) and having a tunnelable layer thickness, and a semiconductor (34) arranged on one side of the insulating layer (30) facing away from the electron emission layer (17), which has alternating n-doped regions (36) and p-doped regions (38), wherein the n-doped regions (36) and the p-doped regions (38) have boundary regions (39) adjacent to the insulating layer (30).

This invention discloses a method for preparing high-density, low-defect yttrium oxide ceramic materials and their applications, comprising the following steps: (1) preparing ceramic blanks by using high-purity yttrium oxide precursor powder through a molding process; (2) heating the ceramic blanks obtained in step (1) to 800-900 ℃ at 1-5 ℃ / min in an oxidizing atmosphere and holding them for 15-30 h; (3) continuing to heat the material obtained in step (2) to 1080-1150 ℃ at 1-5 ℃ / min in an oxidizing atmosphere and holding them for a shorter holding time than in step (2); (4) cooling the material obtained in step (3) with the furnace to avoid thermal stress-induced cracks, thereby obtaining the high-density, low-defect yttrium oxide ceramic material. This invention improves the density and microstructure uniformity of the material, enhances surface chemical stability and defect repair, strengthens bulk crystallinity and thermal shock resistance, reduces the risk of particulate contamination and extends component life, and the process is energy-saving, environmentally friendly and highly operable.

The invention belongs to the technical field of electrochemistry and surface analysis testing, and discloses an electrochemical in-situ characterization method and an electrochemical integration system.The method comprises the steps that in a controllable inert atmosphere low-pressure environment, a liquid electrolyte is sealed through a packaging layer, the liquid electrolyte and an electrode are assembled into a closed total battery, and the closed total battery is integrated on a special sample carrying table; the sample carrying table is transferred to an analysis chamber of the near-normal-pressure X-ray photoelectron spectrometer without exposure through interconnection transmission; the battery is connected with an external electrochemical workstation in the cavity, and interface photoelectron spectrograms are synchronously acquired during charging and discharging, so that in-situ characterization of dynamic changes of chemical components on the surface of the battery is realized. According to the scheme, through double guarantee of physical isolation of the packaging layer and the inert atmosphere, zero air exposure and complete sealing operation in the whole process from battery assembly to test are achieved, volatilization and decomposition of liquid electrolyte are effectively inhibited, and a key technical means is provided for revealing real interface reaction kinetics of the battery.

A process for modifying a surface chemistry of a cathode active material includes providing a powder of the cathode active material, wetting the powder of cathode active material with an efficient amount of a solution to form a mixture, and baking the mixture to obtain a surface modified cathode active material, wherein: the cathode active material has a formula of LiNixMnyCo1-x-yO2, wherein 0≤x≤1, 0≤y≤1, and 0≤x+y≤1; the solution comprises a solvate and a solvent; and the solvate comprises H3BO3, H3PO4, a phosphate salt, a hydrogenphosphate salt, a dihydrogenphosphate salt, or a combination of any two or more thereof.

The application provides a silicon-oxygen material with controllable surface oxygen components, a preparation method thereof and application thereof in lithium ion batteries, and belongs to the technical field of materials. The silicon-oxygen material is obtained by molten salt etching of a silicon alloy phase material. The preparation method is as follows: a molten salt system with a specific composition is kept at a suitable temperature for heat preservation etching together with the silicon alloy phase material, and after washing, separation and drying, a two-dimensional silicon-oxygen material with an accurately controllable surface oxygen component content can be obtained. By adjusting the composition (cations and their ratio) of the molten salt system, the surface chemical activity of the silicon-based material in the etching process can be effectively adjusted, and then the process of introducing oxygen to the surface and the accurate control of the final oxygen component content can be realized. Through this method, the structure-activity relationship between the surface oxygen component of the silicon-oxygen material and the electrochemical performance thereof can be systematically explored and established. The method has the advantages of strong universality, simple process, low temperature and low energy consumption, the prepared material has a sheet structure, and is suitable for negative electrode materials of high-performance lithium ion batteries.

This utility model belongs to the field of control board processing technology, specifically a chemical deposition device for control board surfaces. It includes a deposition tank with a support frame mounted on it. Two pneumatic cylinders are mounted on the top side of the support frame, each with a pneumatic rod attached to its actuating end. A lifting plate is mounted on the bottom of the two pneumatic rods, and a rotating column is rotatably mounted on the lifting plate. A frame is fixed to the bottom of the rotating column. When performing deposition on circuit boards, this utility model uses a clamping and limiting mechanism to ensure that the circuit boards are arranged neatly and orderly, maintaining appropriate spacing between them and avoiding accumulation caused by free sliding or overlapping. This ensures that the deposition solution can evenly cover each circuit board, improving the uniformity of the deposition process, guaranteeing the quality of the deposition layer, and avoiding differences in conductivity or appearance defects caused by uneven deposition.

The present application relates to a kind of double bond content testing method of inorganic powder surface chemical bonding and its application, the testing method includes the following steps: inorganic powder sample and solvent are mixed to carry out soxhlet extraction, remove the double bond of surface physical adsorption, then according to iodometric method, the double bond content testing of inorganic powder sample surface chemical bonding is obtained.The detection method provided by the present application can effectively overcome the problem of higher content measured by traditional method by introducing soxhlet extraction operation, and the method has high precision and accuracy, can provide guiding significance for the preparation, quality detection of inorganic powder and its application in resin composition.