31results about How to "Good size control" patented technology

The application belongs to the technical field of optical materials, and particularly discloses a synthesis method of core-shell quantum dots based on surface activation, which comprises the following steps: S1, preparing a quantum dot core; S2, degassing reaction is carried out on zinc precursor, octadecene and oleylamine in proportion, then the quantum dot core obtained in S1 is injected, a metal alkyl compound is added, and the temperature is increased to 230-250 DEG C; S3, the shell precursor is injected for 3-4 times, the temperature is increased at the same time, the inner shell is grown, zinc stearate and TOP-S are injected again, the ZnS shell is grown, and the InP core-shell quantum dots with regular morphology are obtained. The synthesis method of core-shell quantum dots based on surface activation is adopted, the quantum dots with controllable morphology and size distribution are obtained, the method is suitable for industrial production, and has wide applicability.

This invention discloses a Pickering emulsion based on silk fibroin self-assembled particles and its preparation method. The preparation method includes the following steps: adjusting the pH of the silk fibroin solution to 4.0-4.5, adding NaCl to a final concentration of 0.05-0.1 mol / L, mixing, and then heating to 40-50 °C and allowing it to stand at a constant temperature. Using the obtained silk fibroin self-assembled particle dispersion as the aqueous phase and vegetable oil as the oil phase, the mixture is mixed with excipients and homogenized by high-speed shearing to obtain a primary emulsion. This primary emulsion is then treated by high-pressure microfluidic jet to obtain the Pickering emulsion based on silk fibroin self-assembled particles. This method requires no chemical modification or exogenous reagents, is green and simple, and does not use organic solvents. It can prepare emulsions with high biosafety and high storage stability without emulsifiers, improving process safety and scalability, and broadening its application in the food, cosmetics, and biopharmaceutical fields.

This invention provides a wireless, passive force-position implantable growth monitoring system and its fabrication method for early-onset scoliosis correction. The system includes: a connected compressible capacitive sensor and a flexible wireless antenna coil; the compressible capacitive sensor is connected to a self-growing early-onset scoliosis correction implant growth rod, and the flexible wireless antenna coil is disposed within the body. The compressible capacitive sensor and the flexible wireless antenna coil together constitute an LCR resonant circuit; the compressible capacitive sensor monitors the pressure changes caused by the elongation of the self-growing early-onset scoliosis correction implant growth rod during tissue or bone growth, thereby causing changes in capacitance and resulting in changes in the resonant frequency of the LCR resonant circuit; the resonant frequency change is detected and read out wirelessly via an external readout device. This system is designed to meet the needs of digital rehabilitation, requires no internal power supply, and has a stable structure, making it suitable for growth monitoring after early-onset scoliosis correction surgery.

The application provides a preparation method and a centering device of a size-controllable ultrathin high-quality echo wall optical crystal microcavity, and the method comprises the following steps: cutting a crystal material into a wafer and grinding and thinning the crystal thickness by using a polishing disc; placing an optical crystal microcavity blank on a microscope stage, adjusting two-dimensional adjustment knobs of the stage, and making the center of the optical crystal microcavity blank coincide with an origin of an objective micrometer scale; making a clamping rod with an adhesive adhered to a bottom end penetrate a top end through hole of a clamping rod fixing frame, and making the clamping rod align with the origin of the objective micrometer scale; adjusting the height of the clamping rod, making the optical crystal microcavity blank be pasted and fixed on the bottom end of the clamping rod by ultraviolet curing glue, and completing centering; taking the clamping rod off the clamping rod fixing frame, chamfering an outer circle of the optical crystal microcavity blank; grinding the outer circle surface of the optical crystal microcavity wafer by using sandpaper; polishing the optical crystal microcavity wafer, and obtaining the optical crystal microcavity based on the polished optical crystal microcavity wafer.

This invention discloses a method for preparing van der Waals metal thin films. The method includes the following steps: S1, coating a polyvinyl alcohol (PVA) film onto the surface of a supporting substrate; S2, depositing a metal film on the surface of the PVA film to obtain an intermediate; S3, placing the intermediate in water at 60-80°C to remove the PVA film, obtaining a floating metal film; transferring the metal film to the surface of a target substrate, and bonding the two together using van der Waals forces to obtain the final product. This invention utilizes the controllable dissolution properties of PVA, achieving the separation and transfer of the metal film from the supporting substrate using deionized water, avoiding the use of toxic chemical solvents and interface damage caused by high-energy bombardment. The method is simple, environmentally friendly, and can be widely applied to the preparation of van der Waals heterostructures such as metal-semiconductor and metal-insulator structures.

This invention discloses a core structure for a highly reliable electronic gear shifter, including a bracket, side plates, a toothed plate, and a shifting assembly. The shifting assembly includes a left shift block, a shift lever, a right shift block, steel balls, a locking plate, a locking spring, a gear position spring, and a sleeve. The shift lever is clamped and fixed by the left and right shift blocks. The cylindrical boss of the left shift block is tightly fitted with the inner hole of the large bearing, and the pin hole of the right shift block is tightly fitted with a pin, which is also tightly fitted with the inner hole of the small bearing. The locking spring and locking plate slide within the inner cavities of the left and right shift blocks, the steel balls and gear position spring move within the inner hole of the sleeve, and the steel balls and locking plates are slidably connected to the toothed plate. The unlocking lever slides within the shift lever. This invention enhances the shifting operation feel, increases the service life of the gear shifter, improves the strength and structural reliability of the gear shifter, and the locking function avoids the risk of misoperation.

The present application relates to the technical field of medicine and chemical industry, in particular to a kind of alginate / nano lanthanum hydroxide composite microspheres and its preparation method and application.The composite microspheres use sodium alginate as organic matrix material, and nano lanthanum hydroxide as inorganic filling phase, which are prepared by electrospray technology, and can realize the uniform dispersion and wrapping of nano lanthanum hydroxide in alginate microspheres.The size of the composite microspheres can be adjusted as needed between 235.5 μm and 748.4 μm, and the mass ratio of alginate to nano lanthanum hydroxide can be adjusted as needed within 1: (0.5-1.5).The composite microspheres of the present application have a phosphorus binding capacity of 41.0 mg / g-90.0 mg / g in a gastric acid environment with pH=2, and excellent phosphorus binding ability, which can be used as an oral phosphorus binding agent for the treatment of hyperphosphatemia, providing a new technical solution for clinical intervention of hyperphosphatemia.

The invention relates to a titanium silicalite molecular sieve, a preparation method thereof and a method for preparing epoxypropane, and the method comprises the following steps: S1, mixing titanium silicalite molecular sieve raw powder, a first main binder, water, an optional first binder and an optional first surfactant, and carrying out first molding to obtain titanium silicalite molecular sieve microspheres; s2, mixing the titanium silicalite molecular sieve microspheres, a second binder, water and an optional second surfactant, and carrying out secondary molding to obtain a titanium silicalite molecular sieve precursor; s3, performing steam aging on the titanium silicalite molecular sieve precursor to obtain a titanium silicalite molecular sieve pre-product; and S4, carrying out roasting treatment on the titanium silicalite molecular sieve pre-product. The titanium silicalite molecular sieve prepared by the method disclosed by the invention has a porous structure and high mechanical strength, is used for propylene epoxidation reaction, and can obtain relatively high raw material conversion rate and target product selectivity.

The application discloses a kind of high-performance magnesium-lithium alloy materials, the high-performance magnesium-lithium alloy material is obtained by being compacted by magnesium-lithium alloy powder into mould, then sintering densification is carried out, in addition, the application also provides a kind of preparation method of high-performance magnesium-lithium alloy material, comprising the following steps: one, Mg-8Li-9Al-1Zn alloy powder is weighed and loaded into mould;Two, the powder in the powder loaded mould is compacted;Three, the mould with compacted powder is sintered densification in vacuum, and high-performance magnesium-lithium alloy material is obtained in mould.The high-performance magnesium-lithium alloy material of the application uses Mg-8Li-9Al-1Zn alloy powder as raw material, is compacted by being loaded into mould, then sintering densification is carried out, process flow is short, cost is low, operation is simple, flexible, the obtained high-performance magnesium-lithium alloy material component is uniform, organization is small, and the organization, structure of material can be designed, easily controlled, and the compressive strength is greater than 500MPa.

This application provides a brush structure and a conductive slip ring. The brush structure includes: N sets of brush components, each set capable of clamping a corresponding rotor; each set of brush components consists of M brush filaments, and each brush filament is configured as a U-shape with an opening; the opening of the brush filament has a preset first dimension, and the track groove has a preset second dimension in the radial direction of the rotor; the first dimension can be configured according to the second dimension to provide a tension force for clamping the rotor when the brush components clamp the rotor; a base and N flow guides, each flow guide having at least a portion embedded in the base, and each brush filament having at least a portion disposed on the base; at least a portion of the flow guides is welded to at least a portion of the brush components; N is a positive integer not less than 1, and M is a positive integer not less than 1. This brush structure has the advantages of simple manufacturing process, convenient dimensional control, and low cost.

The application discloses a kind of assembled friction type holographic energy dissipation damping structures with tenon-mortise structure at component end, including prefabricated frame beam slab column, holographic substructure prefabricated beam column, prefabricated beam column node connector, substructure prefabricated beam column node connector, beam end tenon-mortise connector, beam interconnection and plate beam connection tenon-mortise structure.Prepared frame beam slab column is connected by prefabricated beam column node connector, beam end tenon-mortise connector and plate beam connection tenon-mortise, modularization is conveniently installed, and beam end friction deformation and bending energy dissipation are simultaneously enhanced.Holographic substructure prefabricated beam column is connected by substructure prefabricated beam column node connector, and substructure beam is connected with main body prefabricated beam middle section by beam interconnection, under the action of multi-dimensional excitation of building structure system, substructure is first energy dissipation, and the damage of excitation to main body structure is reduced.The holographic energy dissipation damping structure is prefabricated in factory, quality is controllable, installation is convenient, and construction period and budget are greatly reduced.

The invention relates to hydrogel based on an ice skeleton and a preparation method thereof, in the method, the ice skeleton is used as a template guide, a 30wt% PVA solution is poured and filled into the ice skeleton at the temperature of-4 DEG C to-6 DEG C, the ice skeleton is frozen at the temperature of-18 DEG C to-22 DEG C, then the ice skeleton is dissolved and removed at the temperature of 20 DEG C to 30 DEG C, and the hydrogel with a preset three-dimensional directional microstructure is obtained. According to the preparation method, an ice skeleton is used as a process route of template guiding, PVA solution filling, freezing shaping and ice melting demolding, the obtained hydrogel has a regular three-dimensional directional microstructure, the mechanical strength and the structural stability of the hydrogel are superior to those of random porous hydrogel, the technical problem that in a traditional method, biotoxicity residues exist or demolding is difficult is solved, and the preparation method is suitable for large-scale industrial production. The high biocompatibility, the high integrity and the accurate regulation and control of the orientation and the size of the hydrogel are realized.

The invention belongs to the technical field of preparation of inorganic non-metallic materials, and particularly relates to a preparation method of high-purity opaque quartz glass. The method comprises the following steps: by taking high-purity silica sol with impurity content of less than 1ppm as a raw material, compounding silica sol with various particle sizes in proportion, concentrating under reduced pressure until the content of silicon dioxide is 40-60%, adding an acrylamide gel enhancing system into the compounded sol, controlling the temperature to gelatinize the compounded sol, and preserving heat to improve the gel strength; and drying the wet gel at a low temperature of 60-80 DEG C and a relative humidity of 80-95% until the moisture content is less than 5%, then carrying out normal pressure dehydration, organic matter removal and presintering treatment on the dried gel blank, placing the presintered blank in a graphite container, and melting and preserving heat at 1400-1650 DEG C under the protection of nitrogen for 2-8 hours to obtain the non-quartz glass. And the pore size and density can be controlled by regulating and controlling the melting temperature and the heat preservation time. The total impurity content of the quartz glass prepared by the method is less than 5ppm, the structure is uniform, the density can be adjusted in a range of 1.8-2.1 g / cm < 3 >, and the quartz glass has good shading and heat-insulating properties.

The application discloses a synthesis method of rare earth borate nanoparticles, which comprises the following steps: heating a boron precursor in a nitrogen atmosphere, then rapidly injecting a rare earth metal precursor, rapidly heating to 280-310 DEG C and maintaining for a period of time to form uniform rare earth borate nanoparticles; wherein the rare earth metal precursor is an organic solution containing rare earth acetate hydrate and oleic acid; and the boron precursor is an organic solution containing tributyl borate. The application firstly innovatively improves the synthesis method of rare earth borate nanoparticles, prepares regular morphology and uniform size neodymium borate nanoparticles, and after optical performance characterization, it is shown that the neodymium borate nanoparticles have the potential for BNCT used for near-infrared two-zone imaging guidance. The preparation method can realize the size control of the neodymium borate nanoparticles by adjusting the proportion of the neodymium precursor and the boron precursor, and is suitable for the preparation of various rare earth borate nanoparticles, and the method has universality.

The application discloses a kind of synthesis method of spherical polymer nanoparticles, it is related to vaccine technical field, and the method comprises the following steps: polyvinylpyrrolidone is dissolved in mixed solvent, then glyoxal, ascorbic acid and ethylenediamine are added in turn respectively, after stirring for a certain time, the color of solution obviously changes from yellowish to wine red.The solution containing prepolymer is transferred into reaction kettle, the reaction kettle is put into oven to react, the previous prepolymer will further crosslink and polymerize, form nonlinear network polymer skeleton, through repeated centrifugation and ethanol washing, finally drying can obtain the target spherical nanoparticle material.The application uses ascorbic acid as raw material, ethylenediamine as initiator and connecting agent, glyoxal as crosslinking agent, successfully synthesizes a kind of brand-new polymer nanoparticle, simultaneously realizes efficient antigen delivery and specific activation B cell, and is a kind of brand-new ideal vaccine adjuvant with promising application.

This invention belongs to the field of catalytic ammonia oxidation technology, and specifically relates to a Ru / AMn2O4 catalyst for the gas-solid phase synthesis of methacrylonitrile, its preparation method, and its application. The catalyst preparation includes the preparation of an AMn2O4 spinel support, AMn2O4 spinel support pretreatment, and Ru / AMn2O4 catalyst preparation. The catalyst of this invention, prepared by the above method, possesses advantages such as high activity at low temperature, high stability, high conversion rate of methacrolein, high yield of methacrylonitrile, and low yield of the byproduct hydrogen cyanide. It is particularly suitable for use as a catalyst in the gas-solid phase ammonia oxidation of methacrolein to methacrylonitrile.

This invention provides a silicon-carbon active material, its preparation method, and its application in lithium-ion batteries, belonging to the field of electrode material technology. The preparation method of the silicon-carbon active material provided by this invention includes the following steps: providing a raw material dispersion, wherein the raw material dispersion comprises silicon-carbon material, binder monomer, nitride, and dispersant; the silicon-carbon material comprises porous carbon material, silicon deposited in the pores of the porous carbon material, and a carbon layer coating the surface of the porous carbon material with deposited silicon; mixing the raw material dispersion with an initiator and carrying out a polymerization reaction to obtain the silicon-carbon active material. The silicon-carbon active material prepared by the method of this invention, when used as a negative electrode material for lithium-ion batteries, can effectively alleviate the volume expansion and pulverization of silicon-carbon materials, resulting in excellent cycle stability of lithium-ion batteries.

The present application relates to a kind of boron stainless steel sheet for thermal neutron absorption preparation method, comprising the following process steps: (1) induction melting; (2) atomization and deposition; (3) forging; (4) hot rolling; (5) profile processing.The present application is through innovative process route, reasonable melting, plate processing deformation and heat treatment process, significantly improve the microstructure of material, refine hard and brittle boride particles, and then improve the hot workability of material and the mechanical properties of finished plate, meet the higher requirements of boron stainless steel sheet for thermal neutron absorption.According to the process manufactured by the present application, the performance of the plate is similar to powder metallurgy boron stainless steel, also has excellent comprehensive performance, and the process flow is shorter, and the manufacturing cost is also lower.

The utility model discloses a cold forging forming progressive die, and belongs to the technical field of progressive dies. According to the technical scheme, the device comprises an upper die, a lower die, a conveying system and a plurality of work station groups, the work station group comprises a pre-cutting work station group, a raising work station group and a knife edge work station group, a pre-cutting work station of the pre-cutting work station group can be used for stamping a material belt, a raising work station of the raising work station group can be used for processing a concave position in the middle of a product, and a knife edge work station of the knife edge work station group can be used for cutting a peripheral side structure of the product. According to the cold forging forming progressive die, through reasonable layout and division cooperation of all the work station sets, precise machining of a material belt is achieved, the cold forging forming progressive die is especially suitable for small products such as game handle metal accessories, high-quality forming of the products can be guaranteed, the machining problem of the small products of complex structures is effectively solved, and the machining quality and efficiency are improved.

This invention relates to a memristor based on ball milling for the preparation of lead-free inorganic perovskite quantum dots and its preparation method, belonging to the technical field of lead-free inorganic perovskite-based non-volatile storage and neuromorphic computing devices. This invention employs a green solid-state ball milling method to prepare lead-free inorganic perovskite quantum dots, addressing the industry pain points of high toxicity, poor environmental stability, and reliance on high-temperature organic solvents in quantum dot synthesis of traditional lead-containing perovskites. Through a two-step ball milling process, controllable quantum dot size (5~20 nm) and high dispersibility are achieved. Combined with spin coating, low-temperature annealing, and vacuum evaporation of the top electrode, a sandwich structure memristor of "conductive substrate / quantum dot film / top electrode" is constructed. This invention achieves lead-free, highly stable, low-operating-voltage memristor output with an on / off ratio of 10. 3 It can simulate the behavior of neural synapses; the process involves no high-temperature heat injection, is low in toxicity, and can be mass-produced at the gram level. It is compatible with flexible electronics and large-area fabrication, and is suitable for low-power neuromorphic computing, artificial synapses, flexible storage and other scenarios.

The application provides a semiconductor structure and a preparation method thereof. The semiconductor structure comprises a lead frame, a first chip, a second chip, a first conductive clip, a second conductive clip and a plastic package. The lead frame comprises a base island having a first surface and a second surface facing away from each other; the first chip is arranged on the first surface of the base island; the second chip is arranged on the second surface of the base island; at least part of the first conductive clip is arranged on a side of the first chip facing away from the base island, and is used for electrically leading out the first chip; the second conductive clip is arranged on a side of the second chip facing away from the base island, and is used for electrically leading out the second chip; the plastic package encapsulates the first chip, the second chip, part of the lead frame, part of the first conductive clip and part of the second conductive clip; and a side of the second conductive clip facing away from the base island is exposed from the plastic package.

This utility model discloses a photographic apparatus, comprising a sensing module and a control module. The sensing module includes a housing, a first circuit board, and a sensor. The housing includes a first support. The first circuit board is disposed on the first support. The sensor is disposed on the first circuit board and configured to perform optical image capture. The control module includes a second support and a circuit board assembly. The circuit board assembly is connected to the second support and includes multiple second circuit boards and multiple first flexible connectors. The multiple second circuit boards are stacked and electrically connected via the multiple first flexible connectors. The photographic apparatus also includes second flexible connectors electrically connected between the sensing module and the control module, wherein a module spacing is formed between the sensing module and the control module.

The application discloses an ion cage connected covalent organic framework compound and a preparation method and application thereof. The preparation method comprises the following steps: mixing an iron source, an oxime base derivative, a boric acid base derivative, a first solvent and a second solvent, and performing a liquid nitrogen freezing-pump air extraction-freezing cycle degassing treatment, then sealing and performing a condensation reaction to prepare a metal chelate connected covalent organic framework compound; and performing acid treatment on the metal chelate connected covalent organic framework compound to prepare the ion cage connected covalent organic framework compound. The preparation method provided by the application has the advantages of easy raw material, mild conditions, simple operation, and the like, and the prepared covalent organic framework compound has a clear cavity structure and a periodic arrangement of coordination sites, exhibits excellent chemical stability and regular channel characteristics, and has a wide application prospect in the fields of ion adsorption separation, heterogeneous catalysis and the like.

This disclosure provides a transition section structure, a combustion chamber testing apparatus, and a combustion chamber testing method. The transition section structure sequentially comprises a first pipe section and a second pipe section along the X direction. Along the X direction, the first pipe section sequentially comprises a first inlet end, a gradually expanding pipe section, and a first outlet end; the second pipe section sequentially comprises a second inlet end, a contracting wall surface, and a second outlet end. The flow channel cross-section of the gradually expanding pipe section gradually expands along the X direction; the contracting wall surface contracts inwards perpendicular to the X direction; the first inlet end provides a first flow channel cross-section; the first outlet end and the second inlet end are fixedly connected and provide a circular flow channel cross-section; the contracting wall surface and the second outlet end provide a second flow channel cross-section; the first flow channel cross-section and the second flow channel cross-section have definite shapes, and the shapes of the first flow channel cross-section and the second flow channel cross-section are different.

The invention belongs to the technical field of nano material preparation, and particularly relates to a method for preparing a few-atomic-layer ultrathin SnSe nanosheet based on an intercalation compound precursor. The invention discloses a method for preparing a low-atomic-layer ultra-thin (lt; lt) material by taking ethanolamine as an intercalator based on an intercalation-de-intercalation strategy. According to the method, ethanol amine is used as an intercalator through a hydrothermal method, an ethanol amine intercalated SnSe hybrid precursor is firstly synthesized, then the ultrathin SnSe nanosheet is obtained through deintercalation treatment, the thickness of the prepared nanosheet can reach the atomic level (about 2-3 atomic layers), and the method is simple in process, low in cost, high in product quality and suitable for industrial production. The problems that an existing process is complex, and product size and thickness are difficult to control are solved. In addition, the ultrathin SnSe nanosheet prepared by the method shows excellent application prospects in the fields of piezoelectric devices, photoelectric detection, flexible electronics, energy conversion and the like.

The invention relates to an oxygen-nitrogen-doped mesoporous microcrystalline carbon material as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The oxygen and nitrogen doped mesoporous microcrystalline carbon material provided by the invention contains carbon and oxygen, and the oxygen and nitrogen doped mesoporous microcrystalline carbon material contains 90-95 parts by mass of carbon and 5-10 parts by mass of oxygen; or the oxygen and nitrogen doped mesoporous microcrystalline carbon material contains 90-99 parts of carbon, 0.5-5 parts of oxygen and 0.5-5 parts of nitrogen, the pore diameter of the oxygen and nitrogen doped mesoporous microcrystalline carbon material is 2-50 nm, and the particle size is 0.1-10 microns. The prepared oxygen-nitrogen doped mesoporous microcrystalline carbon material is granular, controllable in size, highly stable in structure, very stable after entering a living body, and capable of being stored for a long time in a normal environment without deterioration. The drug carrier is high in universality, capable of loading various types of drugs, capable of regulating cell affinity, capable of improving the targeting effect and capable of enhancing the treatment effect, and high in biological safety.

This invention discloses a method for preparing yttrium-magnesium oxide (YMO) multiphase transparent ceramics using non-aqueous gel casting, belonging to the field of ceramic preparation technology. To overcome the problems associated with water-based gel casting, this invention provides a method for preparing YMO multiphase transparent ceramics using non-aqueous gel casting, comprising: ball milling Y2O3, MgO, a dispersant, and a non-aqueous solvent; then adding epoxy resin and a curing agent and ball milling again; the resulting ceramic slurry is defoamed, cured, and dried; then subjected to debinding, sintering densification, cooling, hot isostatic pressing, annealing, and polishing to obtain the YMO multiphase transparent ceramic. This invention overcomes the difficulties in preparing large-size Y2O3-MgO nano-multiphase infrared transparent ceramics and the problem of component inhomogeneity by designing a non-aqueous solvent system and selecting a suitable gel system, and can produce complex-shaped / large-size, uniformly composed YMO nano-multiphase ceramics.

The present application relates to a kind of porous snowman-shaped Janus particles, porous patchy Patchy particles and preparation method thereof.The porous particles of the present application have through hole, including microsphere portion and one or more protruding portions on the surface of the microsphere portion, wherein the microsphere portion contains crosslinked polymer, the protruding portion contains silicon oxide, the porous particles are snowman-shaped Janus particles or patchy Patchy particles, wherein each of the snowman-shaped Janus particles has a microsphere portion and a protruding portion;Each of the patchy Patchy particles has a microsphere portion and a plurality of protruding portions.The porous snowman-shaped Janus particles and porous patchy Patchy particles of the present application have wide application prospects in many fields such as oil-water emulsification, catalytic carrier, wastewater treatment, pharmaceutical industry, chemical industry and the like.

The invention belongs to the field of functional polymer composite materials, and relates to an anti-aging heat-insulating sole material and a preparation method thereof. The material is prepared from the following components in parts by mass: polyurethane resin, modified polyvinyl alcohol resin, silicon dioxide, superfine calcium carbonate powder, zinc oxide, a chemical foaming agent, a pore opening regulating agent, a nitrogen and phosphorus-containing flame retardant, an antioxidant, a silane coupling agent and a cross-linking agent. A microporous heat insulation structure is constructed through a multi-phase synergistic foaming system, the interface bonding strength is improved by combining a silane coupling and filler modification technology, and the mechanical property is optimized by controlling the crosslinking density. The preparation method comprises the following steps: premixing, banburying, adding the coupling agent through open milling, standing for stabilization, extruding and granulating, and performing hot-pressing vulcanization molding. The prepared material has the advantages of low thermal conductivity, high rebound resilience, excellent compression deformation recovery capability and anti-aging stability, and is suitable for application scenes of outdoor cold-proof shoes, safety shoes and long-time high-frequency use of sole structures.

The invention discloses a 3D hepatotoxicity test monodisperse microgel preparation method, a 3D hepatotoxicity test monodisperse microgel preparation system and a medium, and belongs to the technical field of 3D cell culture and drug screening. The system comprises a preparation module, a statistical analysis module, a material processing module and a control system, the method comprises the following steps: collecting historical data to train an adaptive neural network, and establishing a mapping relation between control parameters and microgel quality indexes; a neural network is used as a prediction model, and optimal control input is solved through a model prediction controller; performing microgel preparation; acquiring images in real time to obtain and feed back actual particle sizes and variation coefficients; applying the new data to incremental updating of the neural network; and performing iteration to form a closed-loop optimization process. According to the method, multi-parameter self-adaptive optimization is realized through an artificial intelligence algorithm, the problem of manual exploration of parameters of different hydrogel materials is solved, the monodispersity and consistency of microgel are improved, and full-process automation is realized.