1577 results about "Inorganic materials" patented technology

The partial or full dehydration of organic or inorganic matter containing water by induction of matter into a vacuum and processing matter through a specially designed acceleration channel is disclosed. The inducted matter accelerates in air from zero speed to sub-sonic speed to reach supersonic speed. As the material transitions the sound barrier, it is subject to acoustic shock waves and an instant negative pressure drop occurs. The sound waves disintegrate, disinfect the material and extract part or all moisture from any organic or inorganic material.

The invention provides a composite sodium ferric phosphate positive electrode material, a precursor and a preparation method thereof, and a sodium ion battery, and belongs to the technical field of inorganic material preparation. Amorphous iron hydrogen phosphate is successfully prepared by innovatively adopting a wet chemical method, the amorphous iron hydrogen phosphate precursor is mixed with the sodium salt, the phosphorus source and the carbon source, the composite sodium iron phosphate positive electrode material is prepared through a solid-phase sintering process, and the prepared composite sodium iron phosphate positive electrode material is high in purity, high in compaction density and good in stability. The structure stability is good, and the specific discharge capacity and the rate capability are excellent; by adopting the positive electrode material, the reversible specific capacity and the service life of the sodium-ion battery can be effectively improved, and high-quality sodium-ion battery supply is provided for the field of energy storage.

The invention provides a photo-thermal super-hydrophobic energy storage material, a preparation method thereof and application of the photo-thermal super-hydrophobic energy storage material in anti-icing and deicing, and belongs to the technical field of anti-icing and deicing. The photo-thermal super-hydrophobic energy storage material provided by the invention comprises an energy storage coating and a photo-thermal super-hydrophobic layer which are sequentially arranged from bottom to top, the energy storage coating comprises the following components: first resin and phase change energy storage microcapsules distributed in the first resin; the components of the photo-thermal super-hydrophobic layer comprise second resin and a photo-thermal inorganic material distributed in the second resin; the surface of the photo-thermal super-hydrophobic layer is provided with a micro-nano structure. Efficient anti-icing / deicing is achieved through the synergistic effect of the photothermal effect, the energy storage characteristic and the super-hydrophobicity, and the result of the embodiment shows that the anti-icing duration of the coating prepared through the method reaches 1.5 times that of a traditional super-hydrophobic surface. Meanwhile, under the illumination condition, the temperature of the coating can be increased to about 50 DEG C within 2000 s, and ice can rapidly fall off from the surface of the coating.

The invention discloses a series of inorganic polymeric adhesives and repair application thereof, the inorganic polymeric adhesives are oligomer structures formed by reaction of inorganic cation precursors and inorganic anions in the presence of capping agents, and the oligomer structures can be cured to form an inorganic polymeric network. The formula of the adhesive can be subjected to ion level regulation and control according to the specific composition of a to-be-repaired inorganic material product, ionic bond reconstruction between the adhesive and a base material is achieved in the heat treatment process, an inorganic interface bonding layer which is compact in structure, matched in crystal form and coordinated in thermal expansion is formed, and the adhesive has the advantages of being high in continuity, free of weak bonding areas, free of obvious pores and the like. The problems of thermal aging, falling, chromatic aberration and the like of a traditional binder can be effectively avoided, the service life of a repaired structure is prolonged, and the environmental stability is improved. The method has popularization and application potentials in the fields of aerospace, weaponry, advanced manufacturing, consumer electronics, medical health, cultural relic repair, jade repair, decorative art and the like.

The invention relates to the technical field of anti-icing, in particular to a photo-thermal phase change energy storage super-hydrophobic all-weather anti-icing composite coating and a preparation method thereof. Comprising the following steps: S1, preparing a phase change microcapsule of chitosan coated paraffin through a single coacervation method; s2, modifying a carbon nano tube, and adding the modified carbon nano tube into the suspension of the phase change microcapsule to form a composite microcapsule; and S3, uniformly mixing the composite microcapsule with organic silicon. Compared with the prior art, by combining the photo-thermal and super-hydrophobic characteristics and the energy storage effect of the phase change microcapsules, the effect of effectively delaying icing can be achieved, the ice resistance and deicing efficiency is high, the photo-thermal conversion performance is good, the super-hydrophobic performance is good, and surface ice prevention and deicing under the extreme weather condition can be achieved; and the coating can keep effective anti-icing and deicing functions under low-temperature and high-humidity conditions. 2, the nanoparticles are grafted to the surface of the chitosan phase change microcapsule to form an organic-inorganic composite phase change microcapsule, and the flexibility of organic substances and the stability of inorganic materials are combined;

The present invention relates to the technical field of inorganic materials, and particularly to a method for clean smelting of beryllium oxide and beryllium oxide. The smelting method includes using iron powder to remove trivalent iron in the acid leaching solution of beryllium ore; using a non-saponified extraction system without sodium ions and ammonium cations, and the non-saponified extraction system exchanges hydrogen ions with itself when extracting beryllium ions. The present invention solves the problems existing in beryllium smelting preparation in the prior art, such as low beryllium recovery rate, easy interference by associated elements, large pollution, and difficult waste liquid treatment. An alkaline earth metal compound is used as a raffinate impurity removal reagent and a non-saponified extraction system, and the raffinate after impurity removal is recycled for beryllium ore leaching, improving the beryllium recovery rate and reducing the environmental pollution caused by waste liquid discharge.

The invention discloses a preparation method of a mesoporous Zn-ZSM-5 molecular sieve for preparing aromatic hydrocarbon from methanol, and belongs to the technical field of synthesis of inorganic materials. Aiming at the problems that a conventional mesoporous Zn / ZSM-5 molecular sieve catalyst Zn blocks orifices, the mesoporous structure is disordered, the molecular sieve solid yield is low, a molecular sieve framework is seriously damaged and the like, the preparation method comprises the following steps: uniformly mixing zinc gluconate with an aluminum source, a silicon source and a template agent, putting the mixture into a closed reaction container, carrying out hydrothermal crystallization, and sequentially washing, drying and roasting to obtain the mesoporous Zn / ZSM-5 molecular sieve catalyst. The sodium type molecular sieve is obtained; the preparation method comprises the following steps: carrying out multiple ion exchange on a sodium type molecular sieve by using an ammonium chloride solution, and sequentially carrying out suction filtration, washing, drying and roasting to obtain the mesoporous Zn-ZSM-5 molecular sieve. According to the preparation method of the methanol-to-aromatic hydrocarbon Zn / ZSM-5 molecular sieve provided by the invention, the obtained molecular sieve is used in the methanol-to-aromatic hydrocarbon process, and has the characteristics of high carbon deposition resistance, high aromatic hydrocarbon selectivity, low Zn wastage rate and the like.

The invention discloses a preparation method of a solid-state battery unit and a solid-state battery containing a composite multifunctional electrolyte layer, multifunctional integration of a single-layer electrolyte is realized through a composite material system, and compared with a traditional PE / PP diaphragm system, the proportion of an inorganic material in the composite electrolyte layer is greater than 90%, and the composite electrolyte layer has excellent high-temperature resistance and can be used for preparing a solid-state battery. And the structural integrity is kept when the battery is possibly subjected to thermal runaway. The localized adding mode of the ionic liquid and the conductive salt is optimized, and high-temperature degradation is avoided; the manufacturing process is simplified, tight interface contact between the electrolyte layer and the electrode is ensured, and impedance is reduced. Compared with a traditional liquid lithium ion battery, the solid-state battery prepared by the invention has the liquid content of less than 1%, and has high safety and cycle performance. The problems that an electrolyte layer in a traditional solid-state battery is single in function (for example, only ion conduction is concerned), the interface impedance is large, the thermal stability is poor, and the mechanical strength is insufficient are mainly solved, and the comprehensive performance and safety of the battery are improved.

The invention relates to the technical field of inorganic material preparation and new energy materials, and particularly discloses a lithium metal battery composite solid electrolyte as well as a preparation method and application thereof. Lithium niobate with high lithium ion conductivity and high dielectric constant is used as an inorganic filler, polyvinylidene fluoride-co-hexafluoropropylene is used as a polymer matrix, and the lithium metal battery composite solid electrolyte is prepared. The lithium metal battery solid electrolyte with a continuous lithium ion transport path is constructed through a freeze casting technology, the dielectric constant of the solid electrolyte is effectively improved by adding the dielectric inorganic filler lithium niobate, lithium salt dissociation is promoted, preparation of the modified electrolyte can be simply completed on a large scale, industrial expansion is facilitated, coulombic efficiency is improved, and the lithium metal battery solid electrolyte is suitable for industrial production. According to the present invention, the lithium metal battery electrolyte meets the industrial requirement on the high lithium utilization rate, the lithium negative electrode can be well protected, the cycle life of the lithium electrode can be improved, the battery electrolyte and the lithium electrode show the good interface compatibility and the good cycle stability, and the new feasible way is provided for the application of the lithium metal battery.

Provided are a display panel and a display device. The display panel comprises: multiple pixel circuits (100); an insulating material layer (ISL), located on the multiple pixel circuits and comprising multiple organic insulating layers, wherein each organic insulating layer comprises an organic material; multiple pixel electrodes (E1) located on the multiple organic insulating layers and connected to one pixel circuit; a light-emitting function layer (EML) comprising a common layer (CL); and an isolation structure (600) provided with a protrusion (PR) protruding from the organic insulating layers below the isolation structure or itself having a protrusion (PR), wherein the isolation structure (600) is configured to separate the common layer (CL) at the protrusion (PR), the isolation structure (600) is located between adjacent pixel electrodes (E1) and comprises an inorganic material, the isolation structure (600) is located above at least part of the organic insulating layers, and the isolation structure (600) and the multiple pixel electrodes (E1) are at least isolated by part of the organic insulating layers. The display effect is improved, and crosstalk is avoided.

The application relates to the technical field of display panels, and discloses a display panel, a display screen and electronic equipment. The CGL of the display panel comprises N-CGL, i-CGL and P-CGL which are stacked in sequence. The LUMO energy level of the organic material corresponding to the i-CGL is less than or equal to -3.5 eV, and the work function of the inorganic material corresponding to the i-CGL is greater than or equal to 3.5 eV. In particular, the Fermi energy level of the i-CGL is lower than that of the P-CGL host material, and the thickness of the i-CGL can be any value less than or equal to 15 nm (especially less than 5 nm). In this case, the charge generation capability of the N-CGL, the i-CGL and the P-CGL in the direction parallel to the thickness of the CGL is improved, the sheet resistance in the direction perpendicular to the thickness of the CGL is greater than 1 GΩ / Dia, the sub-pixel can realize high-efficiency and low-power-consumption light emission, the voltage value obtained by voltage division from the driving voltage of another sub-pixel is small, and the crosstalk between the sub-pixels is reduced or even eliminated.

The invention relates to the field of biomedical application of inorganic materials, in particular to application of lanthanum carbonate in preparation of drugs for resisting liver cirrhosis and inhibiting liver inflammations, the drugs comprise lanthanum carbonate and pharmaceutically acceptable auxiliary materials, the drugs are ground and then mixed with food to prepare a drug mixture, and the drug mixture is prepared into the drug for resisting liver cirrhosis and inhibiting liver inflammations. The mass ratio of the lanthanum carbonate in the medicine mixture is 1-10%, and the mechanism of the lanthanum carbonate for treating the liver cirrhosis is as follows: interference or blocking of activation and proliferation of hepatic stellate cells, inhibition of extracellular matrix generation and promotion of extracellular matrix degradation. According to the invention, a rat liver cirrhosis model is constructed through chemical induction, and the effects of reversing liver cirrhosis and inhibiting liver inflammation are found when a rat is treated by taking lanthanum carbonate orally, so that a new candidate drug is provided for clinical treatment of liver cirrhosis.

The invention discloses an electrode assembly and a preparation method thereof, a self-assembled solid-state battery and a preparation method thereof, and an electric device. The method for preparing the electrode assembly comprises the following steps: (1) preparing a composite solid electrolyte material: the composite solid electrolyte material comprises an inorganic material, a thermoplastic elastomer and a lithium salt, the inorganic material comprises an inorganic ceramic material and / or an inorganic solid electrolyte, and the composite solid electrolyte material is obtained by dry mixing; and (2) applying the composite solid electrolyte material between a pole piece and a release layer for hot pressing so as to obtain the electrode assembly. By adopting the method, the electrode assembly which is good in solid-solid interface contact, high in ionic conductivity, excellent in thermal stability, uniform and compact in solid electrolyte layer thickness, smooth in surface and free of pores can be prepared, and the interface problem in the solid-state battery assembling process is effectively solved; and meanwhile, a flexible solid-state battery interface can be constructed through one-step hot press molding, the interface impedance is reduced, and batch production of the electrode assembly is realized.

The utility model discloses a transparent heatable electromagnetic shielding window, which comprises a transparent base material layer, a metal grid layer, an inorganic material layer and a fluorosilicone material layer which are sequentially laminated and connected from bottom to top, and the inorganic material layer comprises a plurality of silicon dioxide coatings and a plurality of trititanium pentoxide coatings which are staggered and stacked. The transparent heatable electromagnetic shielding window is novel in structure, the metal grid layer not only can be used for electromagnetic shielding, but also can be used for introducing a relatively large current to heat the electromagnetic shielding window so as to ensure the permeability of the electromagnetic shielding window in a severe cold environment, and then the visibility of the electromagnetic shielding window is ensured; the arrangement of the inorganic material layer can improve the light transmission of the electromagnetic shielding window to a greater extent; the fluorosilicone material layer can improve the antifouling capability of the electromagnetic shielding window and improve the phenomenon that fingerprints are easy to remain in the electromagnetic shielding window, so that the visibility of the electromagnetic shielding window is further ensured.

The invention provides a composite positive pole piece, a battery and a battery system. The composite positive pole piece comprises a current collector; the active material layer is arranged on the surface of at least one side of the current collector; the functional coating is arranged on the outer surface of the active substance layer, and the functional coating comprises a binder and an inorganic material; wherein the functional coating comprises at least two layers of sub-functional coatings, and the mass fraction of the binder in the sub-functional coatings is gradually reduced along the direction far away from the current collector. The functional coating provided by the invention comprises at least two sub-functional coatings, and the mass fraction of the binder in each sub-functional coating is gradually reduced along the direction far away from the current collector, so that on one hand, the infiltration state of the pole piece in the battery can be improved, and the structural stability and the rate capability of the battery are improved; on the other hand, the thermal shrinkage resistance of the diaphragm can be improved, the safety performance of the battery is improved, and the overall cost of the battery is reduced.

The invention discloses a wear-resistant rabbit hair-like fiber and a preparation method thereof, and belongs to the technical field of fiber processing, and the preparation method specifically comprises the following steps: adding polybutylene terephthalate, modified polyborosiloxane, a flexibilizer, polyamide and an auxiliary additive into a twin-screw extruder, carrying out melt extrusion, pelletizing and drying to obtain a composite polyester master batch, and carrying out melt extrusion, pelletizing and drying to obtain the wear-resistant rabbit hair-like fiber. The method comprises the following steps: by taking polybutylene terephthalate and polyamide as base materials, modified polyborosiloxane and a toughening agent as reinforcing agents and an auxiliary additive as an auxiliary agent, preparing curled rabbit-hair-like filaments through melt spinning, impregnating rabbit-hair-like fibers to obtain a coating formed by combining an organic material and an inorganic material, and performing thermal relaxation treatment to obtain the rabbit-hair-like composite material. The mechanical property and wear resistance of the rabbit hair-like fiber are effectively improved, and the hydrophilic property of the rabbit hair-like fiber is also improved.

The invention discloses a battery diaphragm as well as a preparation method and application thereof. The battery diaphragm comprises a base membrane and a composite coating formed on at least one side surface of the base membrane, the composite coating comprises a composite inorganic material, and the composite inorganic material comprises a porous layered bimetallic oxide and MOFs particles grown on the surface of the porous layered bimetallic oxide in situ. According to the invention, a composite coating is formed on the surface of the base film by using a composite inorganic material, and the unique pore structure and the layered structure of the porous layered bimetallic oxide LDO provide more liquid storage and retention spaces. The MOFs have good thermal stability, good chemical stability and a unique pore structure, so that the MOFs are endowed with relatively good ion conduction capability, heat resistance and stability. The synthesized MOFs particles grow in situ on the surface of the porous bimetal oxide, so that the bonding force between the particles is improved, and the particles are easier to transfer to the surface of a pole piece after being in contact with the pole piece and hot-pressed, thereby improving the safety of the battery.

The invention relates to the technical field of wastewater treatment or water quality purification, in particular to a method for synchronously culturing ammonia oxidizing bacteria and nitrite oxidizing bacteria, which comprises the following steps: selecting an inorganic material which is large in specific surface area and can quickly neutralize and release alkalinity as a nitrifying bacteria attachment carrier and an alkalinity supplement / pH regulator; the carrier is dissolved through nitration acid production, carbon dioxide and alkalinity are released, a carbon source and alkalinity required by growth are provided for nitrifying bacteria, and propagation of the nitrifying bacteria is promoted. Ammonia oxidizing bacteria and nitrite oxidizing bacteria are cultured synchronously by controlling the growth speed of the two bacteria in the culture process. By controlling the ammonia nitrogen concentration and nitrite concentration of the effluent at the end of culture to be lower than 50mg / L, sufficient time is provided for nitrite oxidizing bacteria to decompose an intermediate product nitrite, so that the purpose of simultaneously culturing AOB and NOB is achieved.

The invention relates to the technical field of biological tissue adhesives, in particular to a biological tissue adhesive composition. The biological tissue adhesive composition comprises a powder A, a powder B and a powder C, wherein the powder A is obtained by curing calcium silicate and acidic calcium phosphate in a curing liquid, curing, drying and crushing; powder B: bivalent metal salt; powder C: phosphorylated amino acid; and an aqueous solvent; the biological tissue adhesive is used for bone adhesion and bone repair. According to the biological tissue adhesive composition provided by the invention, a silicate / hydroxyapatite composite material with a bone induction function is synthesized through optimized bone cement reaction, a curing liquid is added to react with phosphorylated amino acid, and a bone adhesive material is obtained through organic and inorganic material coordination reaction; the bone repairing and regenerating capability and the bone bonding capability are good.

An electrode and an electrochemical apparatus are provided. The electrode includes a current collector, an active layer, and an insulation layer. The active layer is coated on at least one surface of the current collector. The insulation layer is coated on the at least one surface of the current collector and connected to a periphery of the active layer. The insulation layer includes a water-based binder and an inorganic material, and a peel strength of the insulation layer after being immersed in water for 1 minute at a preset temperature is less than or equal to 7N / m.

The invention relates to a preparation and morphology regulation and control method of superfine tungsten powder, molybdenum powder and tungsten-molybdenum alloy powder, belongs to the technical field of inorganic materials, and solves the problems that tungsten / molybdenum powder prepared by adopting an existing method is large in particle size, non-uniform in alloy powder mixing, high in energy consumption, high in cost and difficult in morphology regulation and control. The method comprises the following steps: preparing a mixed solution of peroxy metal acid and peroxy metal acid ammonium; carrying out evaporative crystallization on the mixed solution to obtain a wet material; performing flash evaporation drying on the wet material to obtain raw material powder; roasting the raw material powder to obtain a metal oxide; the metal oxide is subjected to hydrogen reduction, and the superfine metal powder is obtained; the metal is at least one of tungsten and molybdenum. According to the method, the raw material powder obtained after the mixed solution is subjected to evaporative crystallization and flash evaporation drying is roasted and reduced, the superfine nearly-spherical porous metal powder can be directly obtained, the process is simple and convenient, the product purity is high, and the morphology is controllable.

The invention relates to the field of inorganic material preparation, and particularly discloses pseudo-boehmite and a preparation method thereof. A preparation method of pseudo-boehmite comprises the following steps: (1) mixing an aluminum salt solution and an aluminate solution, adding a crystal form regulating agent, and stirring for reaction to obtain a sol system; the crystal form regulating agent is ZnS quantum dots modified by thiohydracrylic acid; (2) adding a pore diameter guiding agent into the sol system, and aging for 6-8 hours; the pore diameter guiding agent is a compound of a polyethylene glycol-polypropylene glycol-polyethylene glycol triblock copolymer and sodium citrate; and (3) carrying out solid-liquid separation on the aged sol system, and washing and drying the obtained solid to obtain the pseudo-boehmite. The proportion of 5-10nm pores of the pseudo-boehmite prepared by the preparation method disclosed by the invention reaches 90% or above, so that the pore distribution requirement of a fine catalytic reaction on the pseudo-boehmite can be met, and the efficient catalytic reaction is favorably realized.

The invention discloses a method for improving saline alkali soil through organic-inorganic coupling, and relates to the technical field of soil treatment.The inner side of a series-connection whole supporting frame is equidistantly provided with a plurality of transposition motors through motor bases, output shafts of the transposition motors are connected with transposition gears in a clamped mode, and the top end of the series-connection whole supporting frame is rotationally connected with an integration gear; the device effectively solves the problems that in the prior art, inorganic materials and organic materials are directly put into soil, pre-desalination and dealkalization treatment is not carried out on the soil, the soil is not subjected to salt removal and alkali removal treatment, and the soil is not subjected to salt removal and alkali removal treatment, so that the soil is not subjected to salt removal and alkali removal treatment, and the soil is not subjected to salt removal and alkali removal treatment. The saline-alkali environment affects the reaction speed of inorganic materials and organic materials with the soil, and through pretreatment desalination and independent reaction of part of the inorganic materials, neutralization treatment and salt and alkali reduction treatment of the soil are achieved, so that the saline-alkali concentration of the soil is reduced, and the situation that the overall reaction speed is affected by high-concentration saline-alkali is avoided.

The invention provides an organic-inorganic-microbial composite water and fertilizer retention soil conditioner and a preparation method thereof. The organic-inorganic-microbial composite water and fertilizer retention soil conditioner comprises an organic material, a microbial agent and composite phosphate fertilizer slow-release carboxylated modified hydrogel microbeads (inorganic material), the compound phosphate fertilizer slow-release carboxylated modified hydrogel microbeads are mixed with organic materials such as humic acid and a microbial agent, so that the phosphorus slow-release effect and the soil water absorption and retention effect are further improved, and the compound phosphate fertilizer slow-release hydrogel microbeads have high water absorption and retention and fertilizer slow-release functions, can effectively improve soil, increase the soil water retention and phosphate fertilizer effectiveness, improve the enzyme activity of the soil and improve the fertilizer utilization rate. Soil moisture and fertility loss is reduced; the raw materials are wide in source, low in cost, safe and harmless, the preparation process is simple, and the prepared soil conditioner is harmless to the soil environment, has high water absorption and water retention and a fertilizer slow release function, can effectively improve soil and can be used for enhancing the water retention and physicochemical properties of the soil.

The invention discloses a modified diaphragm as well as a preparation method and application thereof, and relates to the technical field of electrochemical energy storage, the modified diaphragm comprises a base membrane and a modified inorganic coating arranged on at least one side of the base membrane, the modified inorganic coating comprises an inorganic material and a modifier, the modifier comprises a polyphenol compound, and the polyphenol compound is a phenolic compound. The polyphenol compound comprises an aromatic group and a hydrophilic group, and the hydrophilic group comprises at least one of hydroxyl, carboxyl and carbonyl. The modified inorganic coating in the modified diaphragm provided by the invention adopts the inorganic material and the modifier, the modifier polyphenol compound has good dispersity and excellent adhesiveness, and the modified diaphragm obtained by combining the inorganic material has good thermal stability, mechanical strength, ionic conductivity and electrolyte wettability; under the condition of high current density, the cycling stability of the battery can be remarkably improved, the growth of lithium dendrites is effectively inhibited, the overall safety of the lithium battery is improved, and the service life of the lithium battery is prolonged.

The invention provides a composite membrane and a lithium ion battery using the same, the composite membrane comprises a base membrane and a first coating, the base membrane comprises a first side surface and a second side surface which are arranged back to back, and the first side surface is compounded with the first coating; the first coating comprises a heat-sensitive material, an inorganic material and a binder, the melting point of the heat-sensitive material is 80-140 DEG C, and the average particle size D50 of the heat-sensitive material is 0.01-10 [mu] m; and the average pore size of the base membrane is 5-100 nm. The pore closing temperature of the composite diaphragm is low, so that a lithium ion transmission path can be timely blocked when the temperature of the battery is too high to interrupt the battery reaction, the thermal runaway of the battery is prevented, the cycle life of the lithium ion battery applying the composite diaphragm is prolonged, and the safety performance of the lithium ion battery is improved.

The invention relates to the field of inorganic material preparation, and provides a bismuth hydroxide material and a preparation method thereof. The bismuth hydroxide is sphere-like nano-particles with the particle size of 85-175 nm, the dispersity is good, and the purity exceeds 99.8%. The preparation method comprises the following steps: preparing a micelle solution from a polyethylene glycol-polylactic acid (PEG-PLA) block copolymer, adding bismuth salt into the micelle solution, carrying out a reaction, and carrying out centrifugation, washing and vacuum drying to obtain the product. Due to the unique amphipathy of the PEG-PLA micelle, bismuth ions are uniformly distributed, and the uniformity of particles is improved; the hydrophilic chain segment forms steric hindrance to inhibit particle aggregation; meanwhile, the reaction rate is slowed down, and high-concentration ammonia water is combined to ensure high purity of the product. The method overcomes the problems of uneven particle size and agglomeration in traditional preparation.

A display apparatus includes: a substrate; a light-emitting element on the substrate; a low-reflection layer on the light-emitting element and including an inorganic material; and a reflection control layer on the low-reflection layer and configured to absorb light in at least three wavelength bands selected from a first wavelength band of 430 nm or less, a second wavelength band of 480 nm to 510 nm, a third wavelength band of 575 nm to 605 nm, and a fourth wavelength band of 650 nm or greater.

The invention relates to a ceramic polyolefin insulating fire-resistant cable and a preparation method thereof. The cable comprises a conductor, a ceramic polyolefin insulating layer and an outer sheath. The conductor is coated with the ceramic polyolefin insulating layer, the ceramic polyolefin insulating layer is made of matrix resin and a ceramic additive, and the ceramic additive is a mixture of silicate filler, aluminate filler and borate filler. The mass ratio of the silicate filler to the aluminate filler to the borate filler in the ceramization auxiliary agent is (70-80): (15-25): (5-10). And the outer sheath is coated on the ceramic polyolefin insulating layer. The single-layer structure of the ceramic polyolefin insulating layer has the functions of insulation and fire resistance, a traditional mica tape wrapping process is omitted, the production process is greatly simplified, the efficiency is improved, meanwhile, the problems that due to the fact that inorganic materials such as mica tapes are high in hardness, the overall flexibility of the cable is poor, and installation and laying are not facilitated are solved, and the material cost is reduced.

The invention relates to the technical field of inorganic material synthesis, in particular to a preparation method of a controlled-release magnesium hydroxide fertilizer. Comprising the steps of primary magnesium precipitation, hydrothermal treatment, secondary magnesium precipitation, anaerobic heat treatment and pulping. According to the method, firstly, crystal defects are eliminated through hydro-thermal treatment, crystal seeds with complete crystallinity are obtained, then the crystal seeds are added into a magnesium precipitation reaction system, the principle of Gibbs free energy minimization is followed, newly generated magnesium hydroxide tends to precipitate on the surfaces of the crystal seeds, under the interference effect of a crystal form regulator, the newly generated magnesium hydroxide crystal has many defects, and the magnesium precipitation effect is good. And then oxygen-free heat treatment is carried out, so that the defects of the magnesium hydroxide on the surface layer are further increased, and the initial dissolution and release capacity is improved. The controlled-release magnesium fertilizer which is high in early-stage release speed and long-acting in later-stage slow release is synthesized by utilizing a crystal defect engineering tool, and is different from a traditional coating scheme, and a brand new thought is provided for the design of the controlled-release fertilizer.