244results about How to "Improve physical stability" patented technology

The invention relates to the technical field of cationic polymers, in particular to a high-alkali-resistance polyarylene alkylene piperidine cationic polymer with a branched structure as well as a preparation method and application of the high-alkali-resistance polyarylene alkylene piperidine cationic polymer with the branched structure, and the high-alkali-resistance polyarylene alkylene piperidine cationic polymer comprises one or more of a central unit, a linear unit L1 and a linear unit L2, the central unit comprises one or more of an MA unit, a piperidine cation unit m-DMP and a CA unit, the linear unit L1 comprises the piperidine cation unit m-DMP and a BA unit, and the linear unit L2 comprises a BA unit and a CA unit. By adopting the steps, the interaction force between polymer molecular chains is enhanced and the polymer molecular weight is increased through a branching strategy, so that the water absorption swelling of the prepared anion exchange membrane is inhibited, and the anion exchange membrane shows outstanding conductivity and mechanical properties; meanwhile, piperidine cations are linked to a polymer skeleton with a branched structure through a flexible spacer, so that the prepared anion exchange membrane has outstanding alkali resistance.

The invention relates to the technical field of medicines, in particular to a curcumin-loaded engineered cell membrane nano-vesicle NVs-CUR and a preparation method thereof, and the preparation method comprises the following steps: S1, extruding a macrophage suspension through an extruder to obtain an NVs resuspension; and S2, adding the CUR mixed solution into the NVs resuspension solution, and carrying out ultrasonic treatment to obtain the nano vesicle NVs-CUR. As a novel drug delivery system, the NVs-CUR shows excellent performance in the aspects of physical stability, drug release and stability, cellular uptake ability, cytotoxicity and the like. The characteristics provide powerful support for application in treatment of diseases such as nerve injury and the like, and indicate the wide prospect in the field of biomedicine.

The invention discloses a three-dimensional network carbon nanofiber loaded iron-based material and application of the three-dimensional network carbon nanofiber loaded iron-based material to ammonia synthesis through electro-catalysis of nitrate radicals, an obtained catalytic system comprises a three-dimensional network carbon nanofiber carrier and uniformly distributed iron nanoparticles, and three-dimensional network carbon nanofibers have ultra-light density and ultra-high specific surface area; and the loaded iron nanoparticles play a role in connecting the carbon nanofibers, so that the electron conduction of the catalytic system is accelerated, and abundant reaction active sites are provided. The invention provides an efficient non-noble metal catalyst for electrocatalytic synthesis of nitrate ammonia, can simultaneously realize super-high yield and Faraday efficiency under large current, and has great significance in promoting development of electrocatalytic synthesis ammonia technology and promoting global nitrogen cycle.

The invention discloses an antiviral water-based paint for an interior wall and a preparation method thereof, and belongs to the technical field of water-based paints. The antiviral water paint is used for solving the technical problem that in the prior art, the antiviral performance, the antibacterial performance and the moisture resistance of an antiviral coating need to be further improved. Comprising the following components in parts by weight: 90 to 105 parts of antibacterial and antiviral emulsion, 1.0 to 1.3 parts of dispersing agent, 0.5 to 0.8 part of wetting agent, 0.6 to 1.0 part of defoaming agent, 1.2 to 1.5 parts of thickening agent and 20 to 25 parts of activated filler. The antibacterial agent, modified zinc oxide and the acrylic monomer are prepared into the antibacterial and antiviral emulsion in a free radical polymerization mode in the polysiloxane silicon emulsion containing the multi-element olefin, and the antibacterial and antiviral emulsion is matched with the activated filler, so that the storage stability of the water-based paint is effectively improved, and the service life of the water-based paint is prolonged. And the moisture resistance, scrubbing resistance, long-acting antibacterial property and antiviral property of a water-based paint film are also improved.

The invention discloses an organic potassium fertilizer and a preparation method thereof. The preparation method comprises the following steps: pretreating a novel natural organic matter, a mineral potassium source and an enhanced biological active agent; uniformly mixing the pretreated novel natural organic matter with a mineral potassium source, and adding the plant-derived stimulant in the mixing process to obtain a mixed material containing the plant-derived stimulant; inoculating an enhanced bioactive agent into the mixed material containing the plant-derived stimulant, and performing composting fermentation in an aerobic environment to obtain a fermented mixed material; screening and processing the fermented mixed material to obtain organic potash fertilizer particles; and adding an environmental response type auxiliary agent to carry out coating treatment on the organic potassium fertilizer particles to form microcapsules, and drying and crushing the microcapsules to obtain the organic potassium fertilizer which is easily dissolved in water to form a liquid fertilizer. The prepared organic potash fertilizer not only can improve the nutrient content and the organic matter proportion of the fertilizer, but also can enhance the physical stability and the chemical adaptability of the fertilizer.

The invention provides a silibinin mixed micelle injection as well as a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. The cholate / lecithin mixed micelle system constructed by adopting specific cholic acid and phospholipid has good stability, can be well compatible with the silibinin so as to well encapsulate the silibinin, can obviously improve the solubility of the silibinin, has higher safety under the condition of ensuring the stability of the silibinin, and can be used for preparing a medicine for treating the silibinin. Therefore, the bioavailability of the silibinin is greatly improved. According to the invention, a shearing dispersion method is adopted to prepare the mixed micelles, and the mixed micelles with high drug loading capacity, clarification and good stability for silibinin are formed by destroying and shearing the raw and auxiliary materials in a molecular level, so that the mixed micelles have better physical and chemical stability, the drug quality is easier to control, the process is more simplified, the clinical medication is safer and the cost is lower; and the accessibility of the medicine is improved.

The invention belongs to the technical field of sodium ion batteries, and particularly relates to a soft and hard carbon composite material and preparation and application thereof.The soft and hard carbon composite material is of a double-sulfur-rich core-shell structure with soft carbon coated with hard carbon, the soft carbon serving as an inner core is sulfur-doped mesocarbon microbead-based secondary pore carbon, and the sulfur-doped mesocarbon microbead-based secondary pore carbon serves as an outer core; the hard carbon serving as the shell is sulfur-doped PEDOT (poly (3, 4-ethylenedioxythiophene))-based hard carbon. The core-shell structure is constructed by means of surface chemical modification, pore structure regulation and control, soft and hard carbon compounding and the like of the mesocarbon microbeads, the technical problem that the sodium storage capacity of the pitch-based soft carbon anode needs to be improved is solved, considerable intercalation capacity can be obtained by means of widened carbon layer spacing, and the sodium storage capacity of the pitch-based soft carbon anode can be improved. And abundant sodium storage sites can be obtained to realize large-proportion surface capacitance storage, so that the first charge-discharge capacity, the first efficiency and the cycle performance of the sodium ion battery (sodium battery) are improved.

The invention relates to the field of functional food and pharmaceutical preparations, and discloses an active multienzyme preparation with spleen and stomach strengthening effects. The solid beverage is prepared from the following components in parts by weight: 10 to 20 parts of radix astragali seu hedysari extract, 5 to 10 parts of rhizoma atractylodis macrocephalae extract, 10 to 20 parts of poria cocos extract, 5 to 10 parts of pericarpium citri reticulatae extract, 5 to 10 parts of fructus crataegi extract, 5 to 10 parts of malt extract, 5 to 10 parts of alpha-amylase, 5 to 10 parts of protease, 2 to 5 parts of cellulase, 2 to 5 parts of pectinase, 2 to 5 parts of lipase, 10 to 15 parts of prebiotics, 2 to 5 parts of xylitol and 3 to 8 parts of microcapsule wrapping materials. The compound preparation with high stability and multiple functions is prepared by scientifically combining traditional Chinese medicine extracts and multiple active enzymes, combining with reasonable addition of prebiotics and auxiliary materials, adopting a micro-capsule wrapping technology to protect enzyme activity and optimizing traditional Chinese medicine extraction, component mixing and forming processes.

The invention belongs to the technical field of environmental governance, and particularly relates to preparation of cerium-doped surface modified activated carbon and application of the cerium-doped surface modified activated carbon in adsorption of perfluorinated compounds. The preparation method comprises the following steps: dissolving cerium salt and citric acid in water to form a transparent solution, then adding NaOH and activated carbon (AC), and then sequentially carrying out hydrothermal reaction and calcination treatment to prepare the cerium-doped surface modified activated carbon. The modified activated carbon synthesized by adopting the method has efficient adsorption performance, and the specific surface area is remarkably increased, so that the contact area of an AC material and pollutants is increased, the adsorption performance and the adsorption efficiency of the material are greatly improved, perfluorinated compounds in water can be efficiently removed, and the modified activated carbon is particularly suitable for treating various types of high-concentration wastewater and has a wide application prospect. And multiple requirements on high efficiency, economy and environmental protection in the field of wastewater treatment can be met.

The invention discloses a stable oncolytic adenovirus composition, which contains adenovirus or recombinant oncolytic adenovirus modified based on the adenovirus, and also contains a nonionic surfactant (virus stabilizer), a cryoprotectant, an osmotic pressure regulator and a buffer substance. The composition can still keep stable activity in low-temperature storage (lower than-70 DEG C), cold-chain transportation, repeated freezing and thawing and temporary storage at room temperature (10-30 DEG C). The invention also relates to application of the composition in medicine.

The invention belongs to the technical field of preparation of active substance preparations, and particularly relates to a preparation method of an algae microcapsule. Haematococcus pluvialis is used as a main raw material, astaxanthin is prepared into algae astaxanthin nano solid particles, firstly, haematococcus pluvialis protein is used as a protective layer, then emulsion is adsorbed to prepare self-emulsified algae astaxanthin solid particles, meanwhile, active wrappage of a net-shaped cross-linked structure is utilized, and the self-emulsified algae astaxanthin nano solid particles are prepared into algae astaxanthin nano solid particles. According to the present invention, the haematococcus pluvialis protein and the active wrappage with the network cross-linked structure are subjected to the positive and negative charge effect with the protein solution so as to obtain the haematococcus pluvialis protein dual-wrapped algae microcapsule, and the astaxanthin in the algae microcapsule can be easily released in the small intestine, and the bioavailability can achieve more than 60%. After the astaxanthin is microencapsulated, the influence of environmental factors such as light, heat, oxygen and the like on the stability of the astaxanthin is avoided, the activity can be kept for a long time, and the microencapsulated astaxanthin is suitable for being used in animal feed additives.

The invention relates to a crystal form of a compound I, a preparation method of the crystal form, and application of the crystal form in preparation of iron deficiency related treatment medicines for treating anemia accompanied with or not accompanied with iron deficiency. The novel crystal form of the compound I provided by the invention has the advantages of high solubility, good chemical stability, solid stability, mechanical stability and humidity stability, simple preparation method, easiness in crystal form control, low production amplification cost and the like, and has important value for development of the medicine in the future. # imgabs0 #

The invention relates to the field of cosmetic ingredients, and particularly discloses bentonite gel as well as a preparation method and application thereof. The bentonite gel is prepared from the following components in parts by weight: 65 to 85 parts of grease, 12 to 22 parts of bentonite and 5 to 12 parts of propylene carbonate, the preparation method comprises the following steps: stirring the grease and the bentonite at room temperature at the speed of 400-600r / min for 15-30min, then adding the propylene carbonate, stirring at the speed of 1200-1600r / min for 60-180s until the mixture is sticky, and grinding the stirred product to obtain the bentonite gel. The bentonite gel disclosed by the invention can be used in cosmetics, the problem of insufficient stability of the bentonite gel in the application of cosmetics at present is solved, and the preparation method of the bentonite gel has the advantages of simplicity, high efficiency and low cost.

The invention discloses self-activated red-light controllable fluorescent powder and a preparation method thereof, and relates to the technical field of luminescent material preparation, the self-activated red-light controllable fluorescent powder has a chemical formula of Zn2-xMgxT iO4, 0 < = x < = 2, the self-activated red-light controllable fluorescent powder has high physical and chemical stability, and can be used for preparing luminescent materials. Red light with different intensities can be emitted by adjusting the excitation wavelength, the intensity and wavelength of red light emission can be controlled by adjusting the component proportion (especially the content of magnesium), red light with different wavelengths can be output, and the luminescence characteristic of the fluorescent powder can also be changed by adjusting the calcination temperature in the preparation process. According to the self-activated red light controllable fluorescent powder prepared by the preparation method, the red light of the emission spectrum of the fluorescent powder can be regulated and controlled by regulating and controlling the molar ratio of zinc ions to magnesium ions and the temperature, and moreover, the raw materials adopted by the preparation method are low in price, simple in preparation condition and free of pollution.

The invention relates to the technical field of salt chemical industry, and particularly discloses an artificial seawater essence and a preparation method thereof. The artificial seawater essence is prepared from the following raw materials in parts by weight: 600-800 parts of seawater, 60-80 parts of magnesium sulfate heptahydrate, 40-60 parts of magnesium chloride hexahydrate, 10-12 parts of calcium chloride, 7-9 parts of potassium chloride, 2-4 parts of sodium carbonate, 1-3 parts of a compound anti-caking agent and 0.3-0.5 part of compound probiotics, by adopting various natural raw materials, reasonably designing the raw material ratio and controlling the process parameters, the prepared artificial seawater essence contains various natural components and rich trace elements, can optimize the water quality, is close to a real seawater environment, has relatively strong biodegradability and excellent anti-caking property, and can be used for preparing the artificial seawater essence. And various requirements for mariculture can be met.

The invention discloses an ethylene propylene diene monomer for a low-pressure-change color environment-friendly O-shaped ring and a preparation method of the ethylene propylene diene monomer, and belongs to the technical field of ethylene propylene diene monomer, the ethylene propylene diene monomer for the low-pressure-change color environment-friendly O-shaped ring comprises the following components: a reinforcing agent, a plasticizer, an active agent, g-C3N4 / shell powder composite particles, a modified vulcanizing agent, a coloring agent and ethylene propylene diene monomer. According to the invention, the hydroxypropyl methylcellulose acetate succinate is introduced, so that the endurance capacity of the O-shaped ring under an extremely low temperature condition is remarkably enhanced, the application range of the O-shaped ring is widened, and the O-shaped ring can keep stable performance in a severe environment. And g-C3N4 / shell powder composite particles are ingeniously fused, so that the compression deformation rate of the material in a high-temperature environment is greatly reduced, and the recovery capability of the material after deformation is greatly improved.

This invention relates to the field of pesticide technology, specifically to a fungicidal composition, its preparation method, and its uses. The invention provides a fungicidal composition comprising an active ingredient, a first functional component, a second functional component, and an adjuvant; the active ingredient comprises fluthiazopyrone and cyazofamid; the first functional component comprises at least one selected from silica, titanium dioxide, and zinc oxide; the second functional component comprises at least one selected from citric acid, acetic acid, benzoic acid, urea, and triethanolamine. By introducing specific first and second functional components, this invention synergistically works with the active ingredient, effectively overcoming the key defects of fluthiazopyrone's easy photodegradation and cyazofamid's easy hydrolysis, thus improving the stability of the compound formulation; while ensuring the excellent control efficacy and resistance management advantages of both against oomycete diseases such as grape downy mildew, it extends the duration of action and weather resistance of the agent, providing a more stable, efficient, and long-lasting solution for field application.

The invention relates to the technical field of concrete, and particularly discloses durable concrete, a concrete pole and a preparation method of the concrete pole. Wherein the durable concrete comprises cement, fly ash, mineral powder, sand, gravel, metal aggregate, polyurethane aqueous dispersion, an antirust agent, a water reducing agent, an air entraining agent and water; wherein the metal aggregate is formed by compounding steel ladle slag and iron tailing sand, and the weight ratio of the steel ladle slag to the iron tailing sand is (0.6-0.8): 1. The polyurethane aqueous dispersion forms a continuous polymer film between the hydration product and the metal aggregate, so that the performance of an interface transition area between the metal aggregate and cement, mineral powder, fly ash and other cementing materials is improved, the durability of the concrete is improved, and the service life of an electric pole made of the concrete can be prolonged.

The invention relates to the technical field of carbon dioxide dealkylation, and discloses a catalyst for removing hydrocarbon impurities in carbon dioxide and a preparation method of the catalyst. According to the catalyst for removing hydrocarbon impurities from carbon dioxide, active components are loaded on composite carrier particles; the composite carrier particles are obtained by loading a catalytic promoter cerium oxide on composite aerogel, grinding and sieving; the composite aerogel is prepared from a coagulant aid and at least two aerogel precursors by a sol-gel method. The preparation method of the catalyst for removing hydrocarbon impurities in carbon dioxide comprises the following preparation steps: 1) preparing composite aerogel from an aerogel precursor and a coagulant aid through a sol-gel method; 2) soaking the composite aerogel in a cerium nitrate solution, naturally airing, drying, roasting, grinding and sieving to obtain composite carrier particles; and 3) dipping the composite carrier particles in a mixed solution of active components, standing, drying and roasting to obtain the catalyst for removing hydrocarbon impurities from carbon dioxide.

This invention belongs to the field of QR code printing control technology, specifically disclosing a variable QR code printing control method. This method includes: importing order parameters containing QR code printing position, content type, and application scenario characteristics; real-time acquisition of the flatness and colorimetric features of the substrate surface; quantifying and generating integrity assurance coefficient and clarity maintenance coefficient based on flatness features and printing position; quantifying and generating color stability coefficient and readability maintenance coefficient based on colorimetric features; comparing and verifying each quality indicator with quality indicator thresholds dynamically generated based on order parameters; if verification passes, printing is executed; otherwise, printing parameters are dynamically adjusted before printing is executed. This invention, through multi-feature fusion and dynamic verification adjustment, significantly improves the printing quality, physical durability, and visual readability of QR codes in complex outdoor environments, and overall enhances the adaptability of the QR code printing process.

The invention provides a high-stability high-concentration zinc-containing insulin preparation, and belongs to the field of pharmaceutical preparations, the concentration of human insulin in the preparation is greater than 500 IU / mL, the preparation further contains zinc ions, a preservative, an isotonic agent and a buffer agent, the pH value of the preparation is 7.0-7.8, and the content of the zinc ions in the preparation is greater than 1%. Compared with similar products known in the field, the preparation has great physical stability, the volume of injection liquid medicine can be reduced under the condition that the required amount of insulin is the same, the hardening and caking phenomena of tissues at an injection part are effectively relieved, and the preparation still can be kept in a basically non-aggregated state in a heat or mechanical pressure environment; the method is suitable for continuous infusion systems.

The present application relates to a kind of preparation method of barley and gastrodia elata beverage, belong to food processing technical field.The existing gastrodia elata beverage preparation method has the problems such as low active ingredient extraction efficiency, difficult to synergistically utilize barley functional components, flavor relies on exogenous addition, product is easy to precipitate etc..The present application is by the specific proportion of mixing maturation of barley and gastrodia elata, inoculation includes saccharomyces cerevisiae, lactobacillus plantarum and streptococcus thermophilus Compound starter carries out solid state fermentation, then it is by the compound enzyme preparation including alpha-amylase, beta-glucanase and pectinase enzymolysis and subsequent processing, and beverage is prepared.The method synergistically improves gastrodia elata element and barley beta-glucan enrichment, creates coordinated flavor, and improves product stability.The obtained beverage is mainly used to provide the flavor beverage with the nutritional and health care function of gastrodia elata and barley.

The invention relates to the technical field of skin care, and discloses a sustained-release composition containing azelaic acid composite lipidosome and application of the sustained-release composition in acne treatment and skin repair. Comprising a composite liposome, an encapsulated active component and a dispersion medium, the composite liposome is composed of a lipid bilayer, the lipid bilayer comprises phospholipid, cholesterol and pegylated phospholipid, and the phospholipid is a mixture of hydrogenated soybean phospholipid and dipalmitoyl phosphatidylcholine; the encapsulated active component comprises a fat-soluble component and a water-soluble component; the water-soluble components comprise a hamamelis virginiana leaf water extract and a herba portulacae extract; the dispersion medium is a phosphate buffer solution; by optimizing lipid composition, introducing surface modification and constructing a multi-layer release system, the invention aims to synergistically exert multiple effects of antibiosis, anti-inflammation, cutin regulation, red fading, repair and the like, and provides an efficient, mild and integrated solution for acne and sequelae skin problems thereof.

The present invention discloses a diquafosol composition, a pharmaceutical preparation containing the same and an application thereof. The present invention provides a diquafosol resin composition, which comprises diquafosol or a pharmaceutically acceptable salt thereof, an anion exchange resin and water. The diquafosol composition provided by the present invention has a high drug adsorption rate and drug loading, can achieve controlled release of the drug, improve the bioavailability of the drug, and is conducive to the drug exerting a stable and sustained therapeutic effect.

The present invention provides a method for manufacturing a polymer electrolyte membrane, comprising the steps of: applying a solvent to a polymer electrolyte membrane having defects on the surface thereof to swell the polymer electrolyte membrane; and a step for applying heat and pressure to the swollen polymer electrolyte membrane.

The utility model discloses an anti -interference's electric power equipment fault diagnosis device, including device body, the shell subassembly of device body outside swing installation, device body includes the wiring port of setting at device body top, and device body bottom is provided with the outgoing line mouth, and the anti -collision angle of fixed connection is all established in device body top four quarters, and device body top is provided with the solar cell panel of connection, and the heat -conducting silicone grease is all daubed in device body inner wall, and the mainboard of fixed connection is established in device body inside, and the silica gel shock pad of setting connection is established in the mainboard top surface, by the electromagnetic shielding sealed cabin body that constitutes by sealing rubber strip, conducting rubber gasket, metal spring piece and metal shield together, and the filter array board (including common mode inductance, X / Y electric capacity) of symmetrical layout, can effectively isolate external interference, provide clean working environment for internal core module.

The invention discloses high-density Sn < 2 + >-doped silicon-boron-gadolinium scintillation glass as well as a preparation method and application thereof, and belongs to the field of scintillation luminescent materials. The high-density Sn < 2 + > doped silicon-boron-gadolinium scintillation glass comprises a main body component, a reducing agent and externally doped Sn < 2 + >, the main body components comprise SiO2, B2O3, Gd2O3, GdF3 and X, and the X is one or more of Al2O3, AlF3, BaO and BaF2; the molar percentages of SiO2, B2O3, Gd2O3, GdF3 and X are as follows: the molar percentage of SiO2 is 5 to 10 mol percent, the molar percentage of B2O3 is 15 to 30 mol percent, the molar percentage of Gd2O3 is 25 to 35 mol percent, the molar percentage of GdF3 is 25 to 35 mol percent, and the molar percentage of X is 5 to 15 mol percent; the sum of the main components is 100 mol%; the molar percentage of the reducing agent is 0.5-2 mol%; the molar percentage of the externally doped Sn < 2 + > is 0.5-2 mol%; the density of the high-density Sn < 2 + > doped silicon-boron-gadolinium scintillation glass is 6-6.26 g / cm < 3 >, the photoluminescence quantum efficiency is 75%-90%, the density, the photoluminescence quantum efficiency and the X-ray imaging resolution of the scintillation glass are greatly improved, and the preparation cost of the high-density scintillation glass is reduced.

The present invention discloses a honeycomb composite plate processing, cutting and positioning device, which belongs to the field of honeycomb composite plate processing, including a frame and a rotating roller, wherein the rotating roller is rotatably mounted on the inner surface of the frame near the lower end; a first motor, wherein the first motor is mounted on one side outer surface of the frame; a screw rod, wherein one end of the screw rod is fixedly connected to the first motor, and the end of the screw rod away from the first motor is rotatably connected to the inner side surface of the frame. The present invention can realize the precise processing of honeycomb panels using ultrasonic cutting technology, and at the same time, during the cutting process, the incision area and the part to be cut are subjected to refrigeration treatment to improve the hardness of the foam glue, effectively prevent the adhesion of the incision edge, ensure the smoothness and efficiency of the cutting process, and carry out targeted refrigeration at the incision, which can significantly reduce the adhesion problem of the foam glue caused by high temperature softening, and avoid the problem of uneven incision or mutual adhesion after cutting.

The invention relates to the technical field of cosmetic preparations, and discloses a composition containing succinyl glycan and application of the composition to regulation and control of the repetition distance of a liquid crystal lamellar phase, the composition comprises a liquid crystal component and an effective amount of succinyl glycan, wherein the stratified phase repetition distance of liquid crystals in the composition can be effectively adjusted by adding the succinyl glycan, and the thermal stability of the composition is improved; small-angle X-ray scattering (SAXS) proves that the addition of the succinyl glycan enables the repetition distance of the lamellar phase of the liquid crystal to generate a measurable change of 6.2% to 19.4%; the invention provides a novel method for accurately regulating and controlling the liquid crystal structure of the cosmetic from the nanoscale, and the obtained composition has better stability, moisture retention and skin feeling in use.

This invention provides a fused heterocyclic compound and its organic electroluminescent device, specifically relating to the field of organic electroluminescent materials technology. The fused heterocyclic compound provided by this invention possesses excellent electron transport capabilities, suitable HOMO and LUMO energy levels, and a high triplet energy level, which can reduce the electron transport barrier and improve the balance of electron and hole transport. Simultaneously, it can effectively confine holes within the luminescent layer, increasing the probability of effective exciton recombination, thereby reducing the driving voltage, improving luminous efficiency, and extending device lifetime. Furthermore, this fused heterocyclic compound exhibits strong rigidity and a high glass transition temperature, making it less prone to crystallization and aggregation during vapor deposition, thus possessing good film-forming properties and thermal stability. This improves the stability of organic electroluminescent devices and extends the lifespan of electronic components.