37results about How to "Reduced diffusion rate" patented technology

The invention discloses a preparation method of a crystalline silicon solar cell. The preparation method comprises the following steps: arranging a function adjusting layer on and / or in a passivation dielectric layer; electrode slurry is printed on the passivation dielectric layer and corresponds to the position of the function adjusting layer; sintering to form a metal electrode; the function adjusting layer comprises at least one of compounds containing specific cations, the compounds containing the specific cations can release the specific cations at the sintering temperature, and the specific cations are cations corresponding to elements involved in the glass network formation. According to the preparation method, minority carrier recombination can be effectively reduced, the passivation effect of the battery is improved, and the conductivity of the metal electrode is effectively improved.

The invention belongs to the technical field of photoresist materials, and particularly relates to an etching-resistant ArF photoresist and a preparation method thereof. The etching-resistant ArF photoresist is prepared from the following raw materials in parts by weight: 90 to 100 parts of film-forming resin, 5 to 15 parts of a photoacid generator, 0.5 to 2 parts of organic alkali, 3 to 10 parts of an etching-resistant additive and 3000 to 5000 parts of a photoresist solvent, and the etching-resistant additive is a cholic acid derivative; the film-forming resin comprises metacrylic acid ester with a side chain containing lactone, metacrylic acid ester with a side chain containing an aliphatic ring protecting group and metacrylic acid ester with a side chain containing a polar group; according to the etching-resistant ArF photoresist disclosed by the invention, the photoresist with a relatively high-resolution pattern can be formed; the photoresist has high resolution and etching resistance, and the application range of the photoresist can be widened.

The invention relates to the technical field of solar cells, and provides a solar cell preparation method and a TOPCon solar cell. The preparation method of the solar cell in the technical scheme of the invention comprises the following steps: providing a silicon wafer, wherein the surface of the silicon wafer is provided with borosilicate glass with a first thickness; sequentially carrying out on-water floating pickling and immersion pickling on the silicon wafer to completely remove borosilicate glass on the back surface and the side surface of the silicon wafer, and keeping borosilicate glass with a second thickness on the front surface of the silicon wafer; wherein the first thickness is greater than the second thickness; and carrying out alkali liquor etching on the silicon wafer subjected to immersion pickling so as to remove the boron diffusion layers on the back surface and the side surface of the silicon wafer. According to the silicon wafer prepared by the preparation method of the solar cell in the technical scheme, the electric leakage phenomenon at the edge of the cell can be reduced, and the long-term reliability of the cell is improved; and the depth and the doping concentration of the PN junction can be more accurately controlled.

The application provides an organic-solvent-resistant nanofiltration membrane containing an active intermediate layer and active nanoparticles and a preparation method thereof, and belongs to the technical field of nanofiltration membranes. The organic-solvent-resistant nanofiltration membrane provided by the application comprises a support layer and a polyamide separation layer located on the surface of the support layer; the support layer is a polyimide ultrafiltration membrane base film; the polyamide separation layer is a modified polyamide layer; the modification method is modification by adding an intermediate layer and an additive; the intermediate layer is polydopamine / polyethyleneimine; and the additive is aminozed attapulgite nanoparticles. The polydopamine / polyethyleneimine and aminozed attapulgite are used in synergistic action to prepare the organic-solvent-resistant nanofiltration membrane, so that the organic-solvent-resistant nanofiltration membrane has high permeation flux and high retention rate.

The invention relates to the technical field of air bricks, in particular to an anti-erosion air brick and a preparation process thereof, and the anti-erosion air brick comprises the following components: fused magnesite particles, crystalline flake graphite, modified zirconia fine powder, metal aluminum fine powder, boron carbide fine powder and phenolic resin. According to the invention, through modified titanate and modified boric acid, a composite coating layer is constructed on the surface of zirconium oxide, and a titanium dioxide compact layer is generated in situ by using a titanium component at a high temperature, so that erosion of calcium oxide in slag is blocked; meanwhile, the boron component forms a high-melting-point phase to fill grain boundary pores, and slag permeation and harmful dendritic crystal precipitation are inhibited, so that the structural stability and slag corrosion resistance of the air brick are improved.

The invention relates to the technical field of cigar processing, and discloses a cigar tobacco humidifying method. According to the method, the pressure difference is used for driving the humidifying steam to diffuse to the deep layer of the tobacco stack, and the moisture regaining uniformity is improved; a heating clamp is arranged for heating, evaporation of water on the surfaces of tobacco leaves is promoted through heating, and the situation that the water stays on the surfaces of the tobacco leaves and consequently the diffusion rate of water vapor into tobacco stacks is reduced is avoided; in addition, the heating clamp is used for heating, moisture on the surfaces of the tobacco leaves can be promoted to evaporate to generate airflow to diffuse inwards, moisture is helped to rapidly permeate into the deep layers of the tobacco leaves, and moisture regaining efficiency is improved. Humidifying steam is sprayed to the surfaces of the tobacco leaves, moisture permeation can be promoted by humidifying under the pressure of 0.18-0.25 MPa, meanwhile, the retention time of the moisture is prolonged, and it is guaranteed that the moisture of the tobacco leaves is evenly distributed. By means of the method, moisture can be rapidly introduced into the deep layer of the tobacco stack, it is ensured that the moisture of tobacco leaves in the deep layer area is increased, and finally the target moisture content is evenly and stably achieved.

The invention provides austenitic stainless steel as well as a preparation method and application thereof, and relates to the field of high-temperature-resistant austenitic stainless steel. The austenitic stainless steel comprises the following chemical components in percentage by weight: less than or equal to 0.10% of C, less than or equal to 0.12% of N, less than or equal to 2.0% of Si, 1.0-2.0% of Mn, 16.0-18.0% of Cr, 10.0-14.0% of Ni, 2.0-3.0% of Mo, 0.05-0.10% of Nb, 0.05-0.10% of Ti, less than or equal to 0.02% of S, 0.04-0.06% of P and the balance of Fe and inevitable residual elements. The content of P in the stainless steel is increased, the diffusion rate of solute atoms such as Cr and Mo can be reduced through interaction of P and vacancies at the high temperature, nucleation of M23C6 carbides and the like at the grain boundary is inhibited, the precipitation number is remarkably reduced, meanwhile, P is discharged outwards in the coarsening process of the M23C6 carbides, a core-shell result that the M23C6 carbides are wrapped by the P element is formed, the coarsening rate of the M23C6 carbides is reduced, and the corrosion resistance of the stainless steel is improved. Furthermore, a creep cavity caused by a precipitated phase in the creep process is inhibited, and the creep fracture strength is improved.

This application belongs to the technical field of flame-retardant intumescent thermal insulation materials, specifically providing an inorganic intumescent thermal insulation fireproof coating and its preparation method. The inorganic intumescent thermal insulation fireproof coating comprises the following components: potassium silicate solution, aluminum dihydrogen phosphate, porous composite filler, melamine, pentaerythritol, aluminum hydroxide, glass powder, expandable graphite, mullite fiber, BYK-025 defoamer, sodium tripolyphosphate dispersant, and hydroxypropyl methylcellulose thickener. The inorganic intumescent thermal insulation fireproof coating obtained by this application exhibits excellent bonding strength, high-temperature structural stability, and controllable expansion, making it suitable for fire protection in scenarios such as new energy battery boxes and steel structure buildings, and capable of meeting stringent fire protection requirements.

The invention belongs to the technical field of electric heaters, and particularly relates to a preparation method of a long-life high-temperature magnesium oxide powder heating pipe. The method comprises the steps that an electrothermal alloy wire is pre-oxidized for 1-3 h in an oxygen-containing atmosphere at 900-1100 DEG C, a compact oxidation film is generated on the surface of the electrothermal alloy wire, and a pre-oxidized electrothermal alloy wire is obtained; the pre-oxidized electrothermal alloy wire is arranged in the axial direction of a metal protective sleeve, the metal protective sleeve is filled with fused magnesia powder with the purity larger than or equal to 96 wt%, then diameter shrinkage is conducted on the metal protective sleeve, and the fused magnesia powder is compacted and wraps the pre-oxidized electrothermal alloy wire; carrying out curing heat treatment on the reduced metal sheath tube; annealing is carried out on the processed metal protective sleeve; and cleaning the two ends of the annealed metal sheath pipe to obtain the high-temperature magnesium oxide powder heating pipe.

The invention discloses a preparation method and application of a lithium-sulfur battery catalyst. The method utilizes the spatial confinement effect of three-dimensional porous graphene and forms a local micro-electric field in situ based on the ferroelectric piezoelectric effect of Nb-N-C during the charge and discharge process, thereby accelerating the catalyst to convert soluble LiPSs into insoluble discharge product Li2S, thereby achieving rapid and complete catalytic conversion of LiPSs and significantly improving the rate performance and cycle stability of the lithium-sulfur battery. Therefore, the prepared lithium-sulfur battery catalyst can be used to prepare lithium-sulfur battery positive electrode materials and further assembled into a lithium-sulfur battery.

The invention discloses a toluene steam detection gas sensor and a preparation method thereof, the sensor takes a porous Co3O4 material synthesized by a mixture of a cobalt compound, urea and a solvent through hydrothermal and annealing as a sensitive body, and the interaction of gas on the surface of the sensor is improved through a surface pore-forming technology. The gas sensor is deposited on the surface of a planar gold interdigital electrode through a coating process to prepare a gas sensitive element. The obtained sensitive element has good response to toluene steam, and the detectable actual concentration is as low as 1 ppm. In addition, the sensor also has the capability of resisting interference of other organic steam, and has better selective response to toluene steam. The kit can be used as a beneficial tool for preliminary diagnosis of lung cancer clinically.

The present application relates to the technical field of functional fiber preparation, and specifically discloses a lavender and valerian modified plant-based fiber and a preparation method thereof. The modified plant-based fiber is prepared by the following method: lavender and valerian are washed, dried, and then crushed to obtain plant powder, and the plant powder is used as a raw material for extraction treatment to obtain a plant extract; nanographene sheets are added to a silane coupling agent hydrolyzate, and the plant extract is added for ultrasonic dispersion treatment, and then a sodium alginate coating liquid is added and fully stirred and mixed, and then dried and solidified to obtain a functional filler; a cellulose solution, a functional filler, epoxy soybean oil and a stearate are blended and wet-spun to obtain the fiber; the modified plant-based fiber prepared by the above preparation method can significantly improve the health care performance and antibacterial and anti-inflammatory performance of the fiber while ensuring excellent mechanical properties and thermal stability, and increase the moisture absorption and air permeability of the fiber.

This invention belongs to the field of compositions of polymeric compounds for oral care products, specifically relating to a sustained-release system for oral care products, its preparation method, and its application. This invention discloses that when a cationic polymeric compound, sodium alginate, and ectoine are used in combination, a unique OraReliX™ sustained-release system can be formed on the tooth surface. The core working principle of this system is as follows: the cationic substance adheres to the negatively charged tooth surface through electrostatic adsorption, forming a cationic network; sodium alginate regulates the network density through polyelectrolyte complexation with this cationic network, while reversibly binding calcium ions; ectoine stabilizes the oral microenvironment and protects the sustained-release network structure. The synergistic effect of these three components significantly slows down the release rate of calcium ions, prolonging their effective retention time in the oral cavity.

The invention belongs to the technical field of nanocrystalline hard alloy, and discloses tungsten carbide-based nanocrystalline hard alloy and a preparation method thereof. The preparation method comprises the following steps that tungsten carbide powder is put into a modified solution containing soluble cobalt salt and soluble lanthanide series metal salt to be soaked, solid matter is collected, washed and dried after soaking is completed, and first powder is obtained; calcining the first powder in a reducing atmosphere to obtain second powder; and mixing the second powder, high-entropy metal carbide powder or high-entropy metal carbonitride powder and boron carbide powder, and then forming and sintering to obtain the tungsten carbide-based nanocrystalline hard alloy. The comprehensive effect of lanthanide series metal, high-entropy metal carbide powder or high-entropy metal carbonitride powder and boron carbide is utilized, and a novel introduction mode is adopted, so that the granularity of tungsten carbide is effectively inhibited, the nanocrystalline hard alloy with excellent hardness, obdurability and high temperature resistance is successfully prepared, and the practicability is very high.

The invention relates to the technical field of environmental protection, and discloses a fermentation deodorization method for kitchen waste treatment, comprising the following steps: step one, kitchen waste recycling: recycling the kitchen waste; step two, kitchen waste classification: using an intelligent robot to classify the recycled kitchen waste; step three, fermentation: after excluding solid garbage that is not easy to ferment, the fermentable kitchen waste is sent into a fermentation tank by a conveyor belt, and a certain temperature and humidity are set for fermentation; step four, deodorization: a circular hole is opened on the fermentation tank cover, and a deodorization pipeline is connected to the circular hole, and the gas generated during the fermentation process enters the deodorization device through the deodorization pipeline for step-by-step treatment; step five, post-treatment: the product after the fermentation is completed is freeze-dried; step six, monitoring and control: the entire fermentation deodorization process is carried out under the sensor and monitoring equipment to ensure that the online temperature, humidity, oxygen concentration, pH and water content are within the set range.

This invention relates to a whitening and stain-removing toothpaste that effectively reduces attached pigments and its preparation method. The toothpaste comprises sorbitol, hydrated silica, polyethylene glycol-400, glycerin, niacinamide, sodium lauryl sulfate, sodium hexametaphosphate, sodium benzoate, cellulose gum, sodium phytate, flavoring, olaflu, xanthan gum, sodium saccharin, menthol, sodium bicarbonate, and water. This invention utilizes the temperature-sensitive thickening properties of cellulose gum and xanthan gum, combined with a staged, precise temperature-controlled feeding process. Sodium hexametaphosphate and sodium phytate are pre-dissolved in a high-temperature stage; xanthan gum and cellulose gum are added in a medium-temperature stage to form a colloidal thickening network; and finally, niacinamide and olaflu are added in a low-temperature stage, along with a post-curing treatment. This effectively solves the antagonistic problem between niacinamide, olaflu, sodium hexametaphosphate, and sodium phytate, achieving stable coexistence and synergistic effects of the various active ingredients. The resulting toothpaste effectively reduces pigment adhesion to the tooth surface, exhibiting good whitening and stain-removing effects and excellent stability during use.

The invention discloses a rubber sealing ring accessory for a coffee pot, and the rubber sealing ring accessory is prepared from the following components in parts by weight: 95 to 105 parts of raw silicone rubber, 38 to 43 parts of fumed silica, 5 to 8 parts of hydroxyl silicone oil, 1 to 3 parts of hyperbranched cross-linking agent, 0.1 to 0.14 part of Karst catalyst, 0.05 to 0.07 part of inhibitor and 1.0 to 1.2 parts of vulcanizing agent, the hyperbranched cross-linking agent and the vulcanizing agent are adopted for cross-linking the silicone rubber, a uniform three-dimensional cross-linked network can be formed, and the obtained rubber sealing ring has excellent aging resistance and mechanical performance.

The invention discloses a powder blowing agent for powder spraying metallurgy and a preparation method and application thereof, belonging to the technical field of alloy smelting. The powder blowing agent contains the following elements in mass percentage: Fe: 50.0-85.0%, Cr: 0-30.0%, Ni: 0-30.0%, W: 0-5.0%, RE: 0.2-10.0%, Ti: 0.1-8.0%, Si: 0-10.0%, O: 0.1-10.0%; and the mass proportion of RE, Si, O, and Ti elements meets (RE+Si+O) / Ti is (2:1)-(50:1); the RE and O elements exist in the powder blowing agent in the form of solid solution; the RE is a rare earth. The powder blowing agent is produced by mechanical alloying, and the particle size range suitable for powder spraying metallurgy is selected by screening. The powder blowing agent can introduce solid solution oxygen into smelting steel to improve the comprehensive performance of the material.

The invention relates to the technical field of metal additive manufacturing, and provides a gamma'phase reinforced cobalt-based high-temperature alloy for an LPBF process and a preparation method of the gamma 'phase reinforced cobalt-based high-temperature alloy. The gamma'phase reinforced cobalt-based high-temperature alloy for the LPBF process comprises the following elements: 27-32% of Ni; 11%-13% of Ta; 4 to 6 percent of Al; 4-5% of V; 1-2% of Ti; and the balance of Co. The preparation method comprises the steps that alloy element materials are smelted and prepared into cobalt-based alloy spherical powder, the obtained cobalt-based alloy spherical powder is placed in a laser powder bed fusion printing device, and the cobalt-based alloy spherical powder is prepared into a workpiece in a set shape; a unique net-shaped gamma'precipitated phase is formed, the traditional square block-shaped L12 morphology structure is broken, and the structure has excellent room-temperature and high-temperature mechanical properties.

The present application belongs to the technical field of special metal material heat treatment, and particularly relates to a special metal material and a surface and interface heat treatment process thereof. The material composition is as follows in terms of weight: C 0.03-0.08%, Cr 18.0-22.0%, Ni 8.0-12.0%, Nb 0.05-0.15%, Mo 1.5-2.5%, and the balance of Fe. The process comprises: 1050-1150 DEG C solid solution, 850-900 DEG C low-temperature rare earth carburizing, adding 0.3-0.8% nano La2O3, and inductive quenching in a temperature environment of 900-950 DEG C, and finally tempering in a temperature environment of 200-250 DEG C. The present application realizes comprehensive improvement of surface hardness, core impact toughness, neutral salt spray corrosion resistance and other performances. The workpiece made of the special metal material of the present application is suitable for heavy load corrosion working conditions, and the process can be reformed by using existing equipment, thus being low in cost.

The present application relates to the technical field of functional food materials and bio-based composite material preparation, and in particular to a high-strength sodium alginate-starch composite emulsion gel, a preparation method and application thereof. First, gelatinized starch is homogenized with sucrose fatty acid ester and vegetable oil to prepare a starch composite emulsion, and a stable emulsion system is formed by short straight-chain starch in the starch composite emulsion and vegetable oil; then the emulsion is mixed with a sodium alginate solution, and a calcium alginate network and a starch-oil composite enhanced double-network structure are constructed through pre-freezing immobilization treatment combined with a low-temperature slow calcium ion crosslinking process, thereby solving the problems of weak strength of existing sodium alginate-based emulsion gels, unstable oil and fat embedding, and difficulty in meeting complex food processing conditions, and providing an ideal animal fat replacement material for the development of healthy meat products.

This invention belongs to the field of black phosphorus preparation technology, and particularly relates to a method for preparing black phosphorus thin films with controllable thickness based on CVT. The technical problem to be solved is the technical challenge of large-size film growth in the industrial preparation of black phosphorus. Key technical points: S1, Selecting a "Z-shaped" quartz tube as the reaction vessel; S2, Preparing an epitaxial growth substrate with lattice-inducing ability; S3, Loading the quartz tube with the high end as the raw material conversion zone and the low end as the epitaxial growth zone; wherein, loading the raw material conversion zone involves placing a mixed phosphorus source and mineralizer at the high end of the quartz tube; loading the epitaxial growth zone involves placing the substrate at the low end of the quartz tube; S4, After vacuum sealing the quartz tube, a seed layer is generated, and under the induction of the seed layer, black phosphorus grows laterally along the surface of the substrate; S5, Cooling the quartz tube to room temperature at a certain cooling rate to obtain a cooled black phosphorus film of a certain thickness.

The invention belongs to the technical field of laminated composite materials, and particularly relates to a Ti3Al-TiAl laminated composite material and a preparation method and application thereof. According to the method, the forged Ti3Al alloy and the forged TiAl alloy serve as raw materials, the Ti3Al-TiAl laminated composite material is prepared through the vacuum hot pressing and sheath hot rolling method, the room-temperature ductility and toughness of the composite material are improved, the high high-temperature performance (yield strength and tensile strength) of the composite material is kept, the size of the obtained Ti3Al-TiAl laminated composite material is (200-1000) mm * (80-500) mm * (1-5) mm, the room-temperature tensile strength reaches 900-1100 MPa, and the tensile strength of the obtained Ti3Al-TiAl laminated composite material reaches 90-100 MPa. The room temperature plasticity is 3%-6%, the fracture toughness is 35 MPa.m < 1 / 2 >-50 MPa.m < 1 / 2 >, the tensile strength at 800 DEG C can reach 650-800 MPa, the yield strength at 800 DEG C can reach 600-700 MPa, and the plasticity at 800 DEG C is 20%-30%. And the large-size and large-batch production requirements are met, and good application prospects are achieved.

The present application relates to a kind of perovskite precursor solution stability protection method, belong to perovskite photovoltaic technical field, solve the problem that perovskite precursor solution is easily affected by light, oxygen and water vapor and occurs degradation deterioration in the process of opening bottle use.The method of the present application is: perovskite precursor solution is stored in liquid storage container, perovskite precursor solution surface is covered with a layer of liquid protective layer formed by liquid protective agent;The absorbance A of liquid protective layer in 300~550 nm wave band is greater than or equal to 3.The present application forms threefold protection of light shielding, oxygen isolation and water vapor barrier through liquid protective layer, can continuously provide interface protection in the process of opening bottle and static storage, effectively improve the stability of perovskite precursor solution.

The application discloses a zeolite membrane for efficient separation of CO2 and a preparation method and application thereof. The zeolite membrane is prepared by encapsulating organic guest molecules (or ions) in the channels of the zeolite membrane, and then further regulating the structure and content of the organic guest molecules to obtain the zeolite membrane. Since the residual organic guest molecules have strong interaction with CO2, the diffusion rate of CO2 in the zeolite membrane is greatly reduced, and finally the efficient separation between CO2 and other gas mixtures can be realized. Compared with the conventional zeolite membrane, the zeolite membrane can be used for the separation of CO2 in various different mixture systems, and the application field is very wide, and the adaptability is greatly improved.

The invention discloses an ethyl acetate steam detection gas sensor and a preparation method. The ethyl acetate steam detection gas sensor takes a porous ZnO nanorod material as a sensitive body. And depositing the graphene on the surface of a ceramic tube gold interdigital electrode through a solution sputtering process to prepare the gas sensor for detecting ethyl acetate. The obtained sensor has good response to ethyl acetate steam, and the detectable actual concentration is as low as 1 ppm. In addition, the sensor also has the capability of resisting interference of other organic steam, and has better selective response to ethyl acetate steam. The sensor can be used as a favorable tool for detecting the freshness of fruits such as apples and strawberries.

The invention relates to the technical field of membrane separation materials and discloses an SD membrane based on synergistic alcohol phase system interfacial polymerization and a preparation method of the SD membrane. The SD membrane has high flux, controllable desalination rate and excellent operation stability. The preparation method comprises the following steps: (1) adding a polymer into an organic solvent to obtain a mixed solution; (2) continuing to add a pore-foaming agent to obtain a precursor solution; (3) carrying out vacuum defoaming treatment on the precursor solution, and blade-coating the precursor solution on a carrier to obtain a base membrane; (4) sequentially infiltrating the base membrane into the synergetic alcohol phase system solution and the oil phase solution to perform polyamide treatment to obtain an SD membrane; the synergetic alcohol phase system solution comprises an interfacial polymerization amine monomer, a diffusion regulator, a network building agent and a functional copolymerization monomer; the diffusion regulator comprises monohydric alcohol of which the number of carbon atoms is less than or equal to 3; the network building agent comprises polyhydric alcohol with the number of carbon atoms smaller than or equal to 3 or a polymer of the polyhydric alcohol; the functional comonomer comprises an alcohol amine compound with the number of carbon atoms less than or equal to 4; the oil phase solution includes an interfacial polymerization acyl chloride monomer.

The invention discloses a silicon-based Topcon solar cell and a preparation method thereof, and belongs to the technical field of solar cells. The silicon-based Topcon solar cell is based on the arrangement of a tunneling oxide layer, a first n-type semiconductor layer and a second n-type semiconductor layer which are sequentially stacked on the backlight surface of a silicon wafer, the first n-type semiconductor layer is a silicon layer doped with hydrogen, phosphorus, oxygen, carbon and antimony elements, and the second n-type semiconductor layer is a silicon layer doped with hydrogen, phosphorus, oxygen, carbon and germanium elements. The silicon-based Topcon solar cell solves the problem that the passivation effect of back passivation is reduced due to the fact that phosphorus in a phosphorus-doped silicon layer is diffused into a silicon wafer in the prior art, the passivation performance and the conductivity of the n-type semiconductor lamination layer can be improved, and then the silicon-based Topcon solar cell with excellent performance can be obtained.

The invention discloses an organic semiconductor material, a preparation method, application and a perovskite solar cell, and belongs to the technical field of organic semiconductor materials and solar cells. An organic semiconductor material having a specially designed structure is provided. By introducing the rigid side arm structure, the conjugate length of the core unit is effectively prolonged, and the carrier transport capability of the hole transport material can be effectively enhanced; particularly, heteroatoms such as oxygen, sulfur and selenium contained in the rigid side arm structure can form a coordination effect with lead atoms in the perovskite, so that multiple effects of passivating defects, namely assisting the crystallization of the perovskite material and the like are achieved; when the perovskite solar cell is prepared, the rigid structure may slow down the aggregation of molecules in a solution and the diffusion rate on a substrate, so that the crystallization process is more uniformly regulated and controlled, the formation of a large-area, high-quality and low-defect-density perovskite thin film is facilitated, pinhole and grain boundary defects are reduced, and the performance of the perovskite solar cell is improved.

This invention relates to a salt spray resistant and anti-aging curing coating and its preparation method, belonging to the field of coating technology. The coating includes modified epoxy resin, ternary nanocomposite filler, composite light stabilizer, hydrophobic eutectic solvent, polysiloxane-modified aromatic amine curing agent, and bio-based polyurethane curing agent. The modified epoxy resin is prepared by reacting bisphenol F epoxy resin, KH-560 silane coupling agent, and tetrabutylammonium bromide, followed by the addition of bi-terminated epoxy silicone oil, 3,3'-dithiodipropionic acid, and p-toluenesulfonic acid, and then by adding pentaerythritol phosphate and antioxidant 1010. The polysiloxane-modified aromatic amine curing agent is prepared by reacting m-phenylenediamine as a matrix, KH-560 silane coupling agent, diphenylsilanediol, and dibutyltin dilaurate. The bio-based polyurethane curing agent is prepared by reacting castor oil-modified polyol, isophorone diisocyanate, dibutyltin dilaurate, dimethylolpropionic acid, and trimethylolpropane.