77results about How to "Optimal Control Structure" patented technology

The invention relates to the technical field of supported metallocene catalysts, in particular to a supported metallocene catalyst additive as well as a preparation method and application thereof. The supported metallocene catalyst additive has the following structure: # imgabs0 #, R is selected from C1-C10 alkyl groups, R1 and R3 are selected from alkyl groups and adamantyl groups and are located at ortho-para positions of-OH, R2 is selected from C1-C10 alkyl groups and cycloalkyl groups, and R'is selected from alkyl groups. The additive can greatly retain the catalytic activity and copolymerization performance of a metallocene catalyst, improve the metal loading capacity and catalytic activity, and reduce the dosage of a traditional cocatalyst MAO.

The invention discloses a two-photon polymerization 3D printing photoresist based on a boric acid ester bond and a preparation method thereof. The photoresist comprises a functional monomer containing the boric acid ester bond, a multifunctional acrylate monomer and a two-photon initiator, according to the two-photon polymerization 3D two-photon printing photoresist prepared by adopting the functional monomer containing the dynamic boric acid ester bond to reinforce and toughen conventional acrylic ester, the performance of resin is regulated and controlled by using different types of boric acid ester monomers and adding different proportions of boric acid ester monomers, the mechanical strength of the obtained photoresist can be regulated and controlled, and the performance of the photoresist is improved. Different parameters such as printing effect, hot residual weight and the like can be selected for a final application scene, and the method has a very wide application prospect.

The invention discloses a preparation method of a polyurea elastomer containing multiple hydrogen bonds and metal coordination bonds, aiming at the problem of poor repeated processability of a single dynamic bond and a cross-linked polyurea elastomer, the multiple hydrogen bonds are introduced through dihydrazide chain extension, and network toughness integration is realized through coordination of pyridine and metal ions, so that the toughness of the polyurea elastomer is improved. A polyurea elastomer containing multiple hydrogen bonds and metal coordination bonds is developed. The specific method comprises the following steps: firstly, preparing an isocyanate-terminated prepolymer A, secondly, quantitatively adding the isocyanate-terminated prepolymer A, 2, 6-diaminopyridine, dihydrazide, metal chloride and a catalyst into a solvent according to a certain sequence, stirring and reacting to obtain the double dynamic network polyurea elastomer, and finally forming a product by adopting a polymer secondary processing mode. The raw materials are cheap and easy to obtain, and the preparation process is simple and efficient and suitable for batch production.

The invention provides boron-containing organic silicon, an optical adhesive, organic silicon OCA and a preparation method and application thereof. The preparation raw materials of the boron-containing organic silicon comprise a combination of silanol, a siloxane monomer and a boric acid compound. In the raw materials for preparing the boron-containing organic silicon, the ratio of the total molar weight of hydroxyl to the total molar weight of alkoxy is (0.8-1.1): 1, and the ratio of the total molar weight of the element B to the total molar weight of the element Si is 1: (5-11.5). According to the boron-containing organic silicon provided by the invention, through the design of the preparation raw materials, the compatibility between the boron-containing organic silicon and an organic silicon material in an optical adhesive is good, the tackifying effect on the optical adhesive is excellent, and the boron-containing organic silicon has excellent low-temperature resistance and high-temperature and high-humidity resistance.

The invention discloses selenium-containing unsaturated polyesteramide and a preparation method thereof, and the preparation method comprises the following steps: mixing and dissolving a diamine compound, propiolic acid ester and selenolactone in an organic solvent, and carrying out chemical reaction to obtain the selenium-containing unsaturated polyesteramide. A diamine compound, propiolic acid ester and selenolactone are used as raw materials, selenium-containing unsaturated polyesteramide is generated through click polymerization reaction of selenol and alkyne, the novel preparation method of selenium-containing unsaturated polyesteramide is developed, and the prepared polyesteramide is narrow in molecular weight distribution, controllable in structure and adjustable in degradation rate, and can be used for preparing selenium-containing unsaturated polyesteramide. Long-term stability is good, multiple responsiveness is achieved, and optical performance is good; the raw materials are wide in source, tedious substrate synthesis is avoided, the steps are simple, the reaction conditions are mild, the polymerization speed is high, and efficient large-scale production can be achieved; no catalyst is needed, no by-product is generated, and extra purification is not needed.

The invention discloses a synthesis and purification method of electronic grade phosphorane, which relates to the technical field of phosphorane synthesis, and has the advantages that impurities such as metal oxides and carbides in a silicon carbide ceramic substrate are removed by selecting the silicon carbide ceramic substrate and performing high-temperature annealing treatment, so that the atomic arrangement of the substrate is more regular and ordered; compared with the prior art, the method has the advantages that the gallium phosphide crystal structure is more complete, so that the gallium phosphide crystal structure has higher structural stability, meanwhile, after impurities are removed, the interaction between the substrate and reactants in a high-temperature reaction environment is more controllable, the chemical stability is enhanced, a firm and reliable base is provided for growth of gallium phosphide crystals, and by adopting the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, the yield of the gallium phosphide crystal is increased. The production of waste gas is reduced by utilizing the extremely low volatility of the gallium phosphide, and meanwhile, the reaction rate between hydrogen phosphide and hydrogen is accelerated by introducing glucose oxidase for catalytic reaction, so that the gallium phosphide crystal is promoted to efficiently and directionally grow on the silicon carbide ceramic substrate, and the product quality and the production efficiency are improved.

The invention discloses a preparation method of a viscosity index improver for extremely cold special oil products, which is an atom transfer radical polymerization method and comprises the following steps: adding monomer ester, a catalyst, a reducing agent and solvent oil into a reaction bottle, uniformly mixing and heating to a specified temperature; adding an initiator required by a polymerization reaction into the reaction bottle at a preset temperature; and then, carrying out heat preservation reaction for a period of time to finish the polymerization reaction to prepare the required viscosity index improver. The viscosity index improver is prepared by adopting an atom transfer radical polymerization method, and has the characteristics of wide range of applicable monomers, easiness in modification of polymer end groups, strong molecular design capability, controllable structure and excellent performance.

The invention discloses a monocrystalline silicon alkali polishing additive with an inverted pyramid structure tower footing and application of the monocrystalline silicon alkali polishing additive. The monocrystalline silicon alkali polishing additive comprises, by mass, 1-2 parts of glue, 0.5-2 parts of sodium lignin sulfonate, 1-3 parts of quaternary ammonium salt, 0.1-0.3 part of sodium benzoate, 2-3 parts of DL-proline, 2-5 parts of other auxiliaries and the balance deionized water. By adding the additive disclosed by the invention into a polishing solution for alkali polishing of monocrystalline silicon, the reaction rate of a [111] / [100] surface can be changed, the reaction rate of a [110] surface can be increased, an inverted pyramid structure which is uniformly distributed and complete in structure can be formed on the back surface of the monocrystalline silicon, the roughness of the back surface of the monocrystalline silicon can be increased, on one hand, back slurry contact and slurry tension improvement are facilitated, and FF can be improved; and on the other hand, the double-sided rate of the photovoltaic module is improved, thereby improving the electrical performance of the battery piece.

The invention belongs to the technical field of hydrophobic surface materials, and particularly relates to a method for constructing a super-hydrophobic surface based on amphipathic hollow silicon dioxide Janus nanoparticles, which comprises the following steps: constructing amphipathic Janus particles by using an adhesion polypeptide sequence of an obtained membrane as an adhesion end and 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane as a hydrophobic end; a rapid and efficient surface super-hydrophobic coating is successfully constructed, and the surface is endowed with antibacterial and anti-protein adhesion effects.

The invention relates to the field of functional polymer materials, and discloses a hydrogel polymer material containing active molecules, which comprises 4.5%-6.5% of polyvinyl alcohol, 85.5%-90.5% of deionized water, 7%-10% of p-phenylenediamine, 1%-3% of ammonium persulfate and 2%-5% of hydrochloric acid. The real-time monitoring and visualization of the polymerization process of the active molecules in the hydrogel are realized by utilizing the fluorescence effect and aggregation-induced effect of the active molecules, the understanding of the polymerization reaction mechanism is improved, the performance regulation and control range of the hydrogel material is expanded by regulating and controlling the polymerization reaction and accurately controlling the microstructure of the polymer, and in addition, the application prospect is wide. Active small molecules are orderly polymerized in a hydrogel confinement space to form a high polymer material with excellent performance, the poly-p-phenylenediamine hydrogel material has application prospects in multiple fields and shows good physical and chemical properties and biocompatibility, and the hydrogel prepared by adopting a freeze-thaw method is simple in process, suitable for large-scale production and suitable for industrial production. And the production cost is reduced.

The invention relates to the technical field of lithium ion batteries, and provides a pole piece plasticizer for a lithium battery. The plasticizer provided by the invention has the advantages of good plasticizing effect, good flexibility improvement, simple preparation process and controllable structure, is a water-oil universal plasticizer, and can be applied to the plasticizing of positive pole pieces such as lithium nickel cobalt manganate, lithium iron manganese phosphate, lithium iron phosphate, lithium cobalt oxide and lithium manganate of a lithium battery; the plasticizer can be used for plasticizing negative pole pieces such as graphite, hard carbon, silicon monoxide / graphite mixture and the like, is a universal plasticizer, is wider in application range and better in effect compared with an existing plasticizer, and has a good application prospect and application value.

The invention discloses an internal model control-based network construction type full-power wind power converter control method. The method comprises the following steps of: acquiring a control quantity of a network construction type full-power wind power converter; determining an active power current given value by using preset internal model control according to the control quantity; determining a modulation voltage of a wind power converter machine side converter according to an active power current given value by utilizing current loop control; utilizing direct-current voltage synchronous control, and outputting a control synchronous angle according to the control quantity; by means of voltage and current double-loop control, output control output voltage is output according to the control quantity; and realizing machine-side converter control of the wind power converter according to the modulation voltage, and realizing grid-side converter control of the wind power converter according to the control synchronization angle and the control output voltage.

The invention discloses a hexachlorocyclotriphosphazene bimetallic MOF microcapsule boron nitride-based fireproof coating. A preparation method of the coating comprises the following steps: (1) preparing a BN (at) PDA-MOF (at) HCCP (BM (at) PH) flame retardant; (2) preparing a BM-coated PH epoxy expansion fireproof coating; the multifunctional efficient boron nitride-based epoxy expansion fireproof coating is prepared by combining the excellent barrier property of BN, the synergistic catalytic char formation flame retardant effect of bimetal ions in Co / Zn-MOF and the gas-phase flame retardant effect of a high-phosphorus-nitrogen HCCP flame retardant. During combustion of a coating sample, a sample of BM at PH exhibits a lowest back temperature (163.2 DEG C), a maximum expansion height (31 mm) and an expansion rate (24.2%), indicating the most excellent thermal insulation properties thereof.

The invention discloses a wear-resistant insulating composite coating on a steel surface and a preparation method thereof, and relates to the technical field of surface treatment of metal materials. The wear-resistant insulating composite coating comprises a graphene-nano TiN inner layer and a nano Al 2 O 3 The outer layer, graphene-nano TiN inner layer has a thickness of 0.01-1000 μm, nano Al 2 O 3 The thickness of the outer layer is 0.01-10000 μm, wherein the graphene-nano TiN inner layer is composed of graphene and TiN grains with a particle size of 50-300 nm, the content of graphene is 0.01-1 wt%, and the nano Al 2 O 3 The outer layer is composed of Al with a particle size of 250-550nm 2 O 3 Grain composition: This wear-resistant insulating composite coating is prepared by a two-step chemical vapor deposition method. It has a strong metallurgical bond with the steel substrate. The coating is dense and uniform, with a controllable structure. It can significantly improve the wear resistance and insulation properties of steel materials, extend their service life and expand their application areas.

The invention provides anisotropic thermoelectric hydrogel, which is characterized in that hydrogel is used as a matrix, and a thermoelectric material is dispersed and fixed in the hydrogel matrix; the hydrogel matrix is formed by biocompatible macromolecules through a directional freezing method or a mechanical stretching method, and has an anisotropic internal microstructure oriented in a single direction. Through a directional freezing or mechanical stretching process, a microstructure oriented in a single direction is constructed in the thermoelectric hydrogel, so that the hydrogel has anisotropy of shrinkage characteristics. The two preparation methods disclosed by the invention are both based on physical crosslinking and orientation technologies, complex chemical modification or expensive equipment is not needed, and effective design of the shrinkage anisotropy of the material is realized by controlling freezing conditions (such as liquid level height and cooling direction) or stretching parameters (such as stretching ratio and cycle index); and mutual conversion between heat energy and electric energy can be realized through a thermoelectric material in the hydrogel network.

This application relates to the field of organosilicon polymer materials, specifically disclosing a method for preparing and applying a functionalized MQ silicone resin. A method for preparing a functionalized MQ silicone resin includes the following steps: (1) raw material pretreatment; (2) simultaneous addition reaction: mixing and reacting a hydrogen-containing MQ silicone resin, a terminal olefin monomer containing a benzocyclobutene functional group, and a terminal olefin monomer containing a C-F bond; (3) post-treatment to obtain the functionalized MQ silicone resin; wherein the molar ratio of Si-H bonds in the hydrogen-containing MQ silicone resin, C=C bonds in the terminal olefin monomer containing a benzocyclobutene functional group, and C=C bonds in the terminal olefin monomer containing a C-F bond is 1:(0.2-0.6):(0.1-0.4). This application enables the synergistic effect of the rigid benzocyclobutene group and the fluorinated flexible segment, one-step grafting, and structural controllability, ultimately preparing a functionalized MQ silicone resin with excellent dielectric properties, high temperature resistance, low-temperature flexibility, good hydrophobicity, and excellent mechanical strength.

The invention discloses a rare earth element ruthenium-based composite catalyst as well as a preparation method and application thereof. The preparation method of the rare earth element ruthenium-based composite catalyst comprises the following steps: (1) mixing and grinding rare earth metal salt, a ruthenium source, a conductive carbon material and an additive to obtain a uniform precursor material; and (2) putting the precursor material into a microwave reactor, and carrying out microwave reaction to prepare the rare earth element ruthenium-based composite catalyst. The rare earth element ruthenium-based composite catalyst prepared by the preparation method disclosed by the invention has excellent activity and wide application prospect when being used as an electrocatalytic water decomposition oxygen evolution electrode material.

This invention discloses a samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material, its preparation method, and its applications. The samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material belongs to the monoclinic crystal system, has a space group of Cm, and a chemical formula of Sm. 0.3 La 0.1 :Y 0.6 Ca4O(BO3)3 has a second harmonic response intensity of 0.89 × KDP, and exhibits transmittance exceeding 80% in the 500–1000 nm and 1600–2400 nm wavelength ranges. It also has a strong absorption peak in the 1000–1600 nm wavelength range. Therefore, the samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal can be considered as a nonlinear optical crystal material with broad application prospects in the field of optics.

The utility model discloses plastic material production equipment, relates to the technical field of positive and negative electrode material preparation equipment, and aims to solve the problem of structural regulation and control of the conventional positive and negative electrode material preparation. Comprising a box body and a cylinder body, the box body is communicated with the cylinder body through an adapter, and heating assemblies for heating the interiors of the box body and the cylinder body are arranged on the box body and the cylinder body; a feeding port communicated with the interior of the box body is formed in the box body, a conveying belt is further arranged in the box body, the conveying belt is driven by a conveying motor, a roller column is further arranged in the box body, the roller column is of a composite structure, and the roller column is arranged above the conveying belt and rolls materials on the conveying belt. The two ends of the cylinder body are rotationally connected with the adapter and the discharging port respectively, the cylinder body is driven by the driving mechanism, the discharging port is formed in the supporting seat, and an inner wall threaded groove is formed in the inner wall of the cylinder body. And meanwhile, the productivity is also improved.

The application discloses a method for preparing polylactic acid by using an organic base-sulfourea dual catalytic system, and comprises the following steps: under the catalysis of the organic base-sulfourea dual catalytic system, ring-opening polymerization of lactide is carried out under the action of an initiator to obtain the polylactic acid; and the sulfourea is disulfourea or trisulfourea. The sulfourea catalyst is easy to synthesize, the organic base-sulfourea dual catalytic system formed by modular combination of the organic base and the sulfourea has a high decomposition temperature, and therefore has good high-temperature resistance, so that the controllable ring-opening polymerization of lactide in a solution can be realized, and the controllable ring-opening polymerization of lactide at high temperature can also be realized; the catalyst used in polymerization is a hydrogen bond bifunctional catalyst, and the controllable polymerization effect that cannot be achieved when only alkali is used for catalysis can be achieved, so that the polylactic acid has a narrow molecular weight distribution; by adjusting the ratio of lactide, the initiator, the organic base and the sulfourea, the catalytic activity can be further regulated, and the polylactic acid with a high molecular weight and a controllable structure can be obtained.

The present application relates to the technical field of high polymer material flame-retardant modification, and particularly relates to a COF hierarchical modification APP-based core-shell flame-retardant smoke suppressant, a preparation method and application thereof. The flame-retardant smoke suppressant takes APP as a flame-retardant core layer; takes PVP as a soft template agent, and assists in situ growth of melamine-p-phenylenedimethylene formaldehyde (COF) on the surface of APP to adsorb combustible volatile components in the initial pyrolysis stage, provide a gas source, and act as a Fe 3+ coordination skeleton; takes tannic acid as a coordination agent and a carbon source, and constructs a multi-level core-shell structure with Fe 3+ coordination. The present application realizes integration of flame-retardant and smoke suppression functions through hierarchical modification. When the flame-retardant agent is applied to polyurethane, it can significantly reduce the heat release rate, smoke release rate and toxic gas generation amount, and simultaneously improve the compatibility with the matrix, effectively overcoming the defects of poor compatibility and insufficient flame-retardant and smoke suppression performance of traditional APP flame-retardant agents. The present application has simple preparation process and controllable conditions, and is suitable for industrial production.

This invention belongs to the field of fire extinguishing materials and their preparation technology, and provides a fire extinguishing microcapsule and its microfluidic controllable preparation method. The preparation method is characterized by the following steps: (1) preparing fluids of each phase, (2) preparing a dual emulsion using a microfluidic device, (3) collecting and sealing the dual emulsion in a collection container, controlling the axis of the collection container to be horizontal, and controlling the collection container to rotate around its axis for 1 to 15 minutes, applying light to solidify the outer shell of the dual emulsion droplets while maintaining the rotation of the collection container, cleaning, and drying to obtain the final product. The fire extinguishing microcapsule prepared by this method consists of an outer shell and a liquid fluorine-containing fire extinguishing agent encapsulated within the outer shell. The outer shell of the fire extinguishing microcapsule has a uniform thickness, and the eccentricity between the outer shell and the core is less than 0.1. The method of this invention can achieve precise customization of fire extinguishing microcapsules according to the differentiated fire characteristics of different application scenarios, and can improve the concentricity between the core and the outer shell of existing fire extinguishing microcapsules.

A polycarbonate plasticizer and a preparation method thereof, belonging to the technical field of material modification additives. The plasticizer has the following structure: A n —C, wherein A is a polycarbonate chain, n is 2 to 4, and C is a multi-head initiator residue; the polycarbonate chain is a block structure of a rigid segment and a flexible segment, one end of the rigid segment is connected to the multi-head initiator residue, and the other end of the rigid segment is connected to the flexible segment, the rigid segment is a PE segment polymerized from epoxy compound and phthalic anhydride or / and a polycarbonate segment of cyclohexene oxide and CO2; the flexible segment is a polycarbonate segment of BGE and CO2, a polycarbonate segment of AGE and CO2, and one or more of PEO and PPO. The plasticizer not only has excellent plasticizing effect and long-term stability, but also has low migration and good environmental adaptability.

This invention discloses Au nanoparticles loaded with bimetallic compounds for photocatalysis and their preparation method, belonging to the field of photocatalytic materials technology. Preparation steps: S1: Tetrachloroauric acid, quaternary ammonium salt, and citric acid are added to a sodium borohydride solution and stirred at 25-120℃ for 1-3 hours to obtain solution A; solution B is prepared containing quaternary ammonium salt, tetrachloroauric acid, ascorbic acid, silver nitrate, and hydrochloric acid; solutions A and B are mixed and stirred at 25-50℃ for 1-15 hours to obtain Au nanoparticles; S2: Solution C is prepared containing quaternary ammonium salt, a first metal source, and ascorbic acid; solution D is prepared containing quaternary ammonium salt, a second metal source, NaOH, and ascorbic acid; Au nanoparticles are mixed with solution C and reacted at 40-80℃ for 1-5 hours; then the supernatant is removed by centrifugation, and solution D is added again, reacting for 1-5 hours to obtain Au nanoparticles loaded with bimetallic compounds. This invention enables controllable nanoparticle structure and allows for metal loading at different sites by adjusting synthesis parameters.

The application discloses a preparation method of high-strength and high-ductility titanium-based composite material with a composition gradient, and comprises the following steps: 1, material selection: selecting a plurality of Mo equivalent different beta type titanium alloy powder as a matrix material, and selecting carbon nanoparticles as a precursor material of a reinforcing body; 2, powder mixing: placing the plurality of Mo equivalent different beta type titanium alloy powder and the carbon nanoparticles in a ball mill and ball milling and uniformly mixing; 3, forming: performing plasma sintering forming on the mixed powder; 4, heat treatment: performing solid solution treatment on a titanium-based composite material blank to obtain the high-strength and high-ductility titanium-based composite material with the composition gradient. The application utilizes a powder metallurgy method to sinter the plurality of Mo equivalent different beta type titanium alloy powder and the carbon nanoparticles into a bulk alloy, so that the sintered bulk alloy has the composition gradient, and the prepared titanium-based composite material with the composition gradient has excellent mechanical properties and is a high-strength and high-elongation composite material.

The invention discloses a preparation method of calcite with different calcium-magnesium ratios, which comprises the following steps of: storing dextran sodium sulfate in a refrigerator, and taking out the dextran sodium sulfate when in use; the method comprises the following steps: adding sodium polyacrylate and dextran sodium sulfate into a centrifuge tube, adding a MgCl2 solution and a CaCl2 solution, mixing, adding a Na2CO3 solution, immediately carrying out a precipitation reaction, completely precipitating all calcium and magnesium ions, and adding reagents in different proportions; after full reaction, immediately carrying out solid-liquid separation by using a centrifugal machine; after reaction liquid is separated, filtering by using a vacuum pump, washing filter residues with deionized water and alcohol for 2-3 times, and drying at room temperature; mixing the prepared calcite powder with deionized water according to the ratio of 0.2 g / 1L, introducing CO2 gas for 6-8 days to ensure that the calcite powder is balanced, and then taking supernate, namely a calcite saturated solution. The invention aims to flexibly prepare calcite solutions with different calcium-magnesium ratios so as to meet diversified application requirements and show extremely high utilization potential and value.

The utility model relates to the technical field of target cars, in particular to a novel target car which comprises a plurality of moving assemblies, each moving assembly comprises a transverse rail, a sliding block sliding on the transverse rail, a longitudinal rail installed on the sliding block, an installation block sliding on the longitudinal rail and a shooting target installed on the installation block, and a light-emitting module is arranged on the back face of each shooting target. The device further comprises a scoring system electrically connected with the light-emitting module. The problem that a traditional track target vehicle cannot train the on-site response capacity is solved.

The invention discloses a lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material and a preparation method thereof, the lanthanum ion doped oxygen calcium yttrium borate nonlinear optical crystal material belongs to a monoclinic system, the space group is Cm, the chemical formula is La0.1: Y0. 9Ca4O (BO3) 3, the frequency multiplication coefficient is 2 * KDP, the ultraviolet cut-off edge is less than 200 nm, and no absorption peak with the intensity greater than or equal to 0.2 cm <-1 > exists in the range of 200-2500 nm. Therefore, the lanthanum ion doped yttrium calcium oxide borate crystal can be used as a nonlinear optical material with a wide application prospect in the field of optical parameter chirped pulse amplification.

The invention provides a nickel oxide nano triangular electrochromic energy storage difunctional material and a preparation method thereof, and belongs to the field of functional films. The multifunctional material has an amorphous porous nanometer triangular island-shaped structure, nickel oxide nanometer triangles have excellent electrochromic performance and energy storage performance at the same time, the energy storage state of the material can be observed in real time through the color change of the material, the nickel oxide nanometer triangular difunctional material takes FTO conductive glass as a substrate, and the nickel oxide nanometer triangular island-shaped structure is prepared through the method. The thin film is of an amorphous porous nanometer triangular island-shaped structure. The nickel oxide nano triangular film with the amorphous porous nano triangular island-shaped structure is prepared by utilizing a unique oxygen partial pressure pulse control technology, the electrochromic performance and the energy storage performance of the material are greatly improved, and the nickel oxide nano triangular film is suitable for being applied to energy-saving / energy-storage dual-function devices or other advanced energy devices.

This invention discloses an artesunate prodrug, its preparation method, and its application. The artesunate prodrug comprises amphiphilic polymer groups with different functions coupled to a 1,3,5-triazine-2,4,6-triamine or cyanuric chloride backbone molecule as shown in formula (I). The amphiphilic polymer groups are hydrophilic polyethylene glycol derivative groups containing terminal amino or carboxyl groups and artesunate groups. This artesunate prodrug can self-assemble into long-acting liposomes in water, showing potential for treating neutrophilic asthma.