29results about How to "Uniform pore structure" patented technology

The invention relates to the technical field of catalysts for gas purification, in particular to a hierarchical pore metal-based catalytic adsorbent as well as a preparation method and application thereof. The invention discloses an integrated preparation method combining a sol-gel method and a template method, which comprises the following steps of: adding a template agent before forming gel, adding a proper amount of ammonia water in an aging process, accurately controlling other reaction conditions and a raw material ratio, and controlling a spatial confinement effect of the template method and a chemical reaction in a sol-gel process to obtain a sol-gel composite material. The morphology and size of the catalytic adsorbent can be accurately regulated and controlled, the hierarchical pore metal-based catalytic adsorbent with a microporous structure as a main material and mesopores and macropores as coexistence is finally prepared, the hierarchical pore structure provides rich adsorption sites and catalytic activity centers, and the hierarchical pore metal-based catalytic adsorbent has high adsorption capacity, high selectivity, good catalytic activity, good stability and easy regeneration.

The invention discloses a preparation method of a wood-based carbon material for improving the performance of a supercapacitor, and the method comprises the steps: cutting Balsa wood into wood chips, and immersing the wood chips into absolute ethyl alcohol to obtain a natural wood chip sample; lignin is removed, and delignification wood chips are obtained; dissolving cellulose through a high-concentration zinc chloride solution, and separating out regenerated cellulose to obtain a wood sample RC (at) ZnODWx with regenerated cellulose and ZnO growing on the surface; placing the regenerated cellulose wood chips in a tubular furnace to obtain a wood-based graded porous carbon product, obtaining a carbon sample named CRCDWx, and cutting; a wood-based hierarchical porous carbon electrode is used as a positive electrode, a zinc foil is used as a negative electrode, organic gel is used as an electrolyte and a diaphragm, and the CRCDW-based zinc ion hybrid supercapacitor is prepared with a metal shell. The wood-based hierarchical porous carbon material capable of improving the performance of the supercapacitor is prepared, the cost is low, the material has reproducibility, dependence on a traditional electrode material is reduced, environmental pollution is reduced, and a prospect is provided for high-value conversion of wood raw materials and application of the wood raw materials to the high-performance supercapacitor.

The invention relates to the technical field of fireproof coatings, and discloses an environment-friendly inorganic expandable fireproof coating and a preparation method thereof.The expandable fireproof coating is prepared from, by mass, 75-145 parts of a ternary aluminosilicate precursor, 60-120 parts of an alkali activator, 5-9 parts of a fiber reinforced material, 15-30 parts of inorganic flame-retardant filler, 8-23 parts of inorganic heat insulation filler and 3.62-11.22 parts of auxiliaries. According to the technical scheme, by utilizing the dual expansion effect of the silica fume and the expandable graphite and the dual foaming effect of the silica fume and the hydrogen peroxide in the alkaline coal gangue and fly ash geopolymer, the prepared fireproof coating has relatively strong porous heat insulation capability under the normal temperature condition; the coating can rapidly expand under a high-temperature condition to generate a porous and firm inorganic heat insulation layer with the thickness of several times or even dozens of times, and the coating is high in fire endurance, excellent in heat insulation performance and not prone to aging.

The invention discloses a preparation method and application of a porous para-aramid nanofiber membrane. The preparation method of the para-aramid nanofiber membrane comprises the following steps: placing a substrate coated with an aramid nanofiber solution in an aprotic solvent to obtain an aramid nanofiber membrane containing the aprotic solvent; and immersing the aramid nanofiber membrane containing the aprotic solvent into a protic solvent, replacing the aprotic solvent in the nanofiber membrane with the protic solvent, and heating and drying to obtain the para-aramid nanofiber membrane. The para-aramid nanofiber membrane prepared by the preparation method of the para-aramid nanofiber membrane has highly adjustable porosity and pore structure, and has a huge application prospect in the fields of battery diaphragm and membrane separation and the like, and the preparation method is simple and suitable for large-scale industrial application.

The invention discloses light and flexible shape-memory constant-temperature phase-change foam and a preparation method thereof, and relates to the technical field of phase-change foam materials, the constant-temperature phase-change foam is prepared from the following components by weight: 100 parts of a packaging material, 50-200 parts of a phase-change material, 10-50 parts of a nucleating agent, 1-3 parts of a vulcanizing agent, and 1-2 parts of an auxiliary vulcanizing agent; 1-2 parts of an activator; 3-5 parts of zinc oxide, 1-3 parts of an anti-aging agent, 0.5-1 part of a scorch retarder and 0.5-2 parts of temperature change powder. The environment-friendly supercritical foaming technology and the fine material design are adopted, PCM leakage is effectively prevented, and environment friendliness and the energy storage effect are guaranteed. The material has excellent flexibility and shape memory characteristics, and is suitable for the fields of building heat preservation, electronic heat dissipation and the like. By optimizing the structure, efficient energy storage and low density are achieved, meanwhile, the temperature change powder is introduced to visually indicate the phase change process, and use convenience is improved.

This invention provides a method for screening the stability of biomass shell-derived hard carbon raw materials. The method investigates the optimal ratio and relationship between the lignin content and sugar content measured after alkali treatment in biomass shell materials, thereby screening the stability of biomass shell materials from different sources and batches. When the lignin content of the biomass shell material itself and the sugar content measured after alkali treatment satisfy the relationship 15≤β×L≤60, an effective balance between the lignin and sugar content in the biomass shell material can be achieved, resulting in a good porous structure. This method provides a simple and rapid screening process to obtain biomass shell materials with better stability. When biomass shell materials with better stability are subsequently used to prepare hard carbon battery materials, the resulting hard carbon battery materials exhibit good overall performance in terms of cycle life, capacity, and coulombic efficiency.

The invention discloses a method for preparing a porous nickel electrode by electrodepositing nickel-zinc-phosphorus alloy, which comprises the following steps: taking a nickel-based substrate as a cathode, and carrying out electrochemical deposition reaction in an electrolytic bath filled with an electroplating solution which comprises nickel salt, zinc salt and a phosphorus source; carrying out heat treatment on the nickel-based substrate subjected to electrochemical deposition; and the nickel-based substrate subjected to heat treatment is put into alkali liquor to be activated. The phosphorus source is introduced into the electroplating solution, the phosphorus element can be doped into alloy crystal lattices, and the dissolution efficiency of zinc is improved during activation, so that the residual quantity of the zinc element is effectively reduced, the activation time is shortened, sufficient formation of a porous structure is facilitated on the premise of ensuring the uniformity of the porous structure, the catalytic performance of the electrode is improved, and the service life of the electrode is prolonged. And the residual zinc element is prevented from polluting the electrolyte.

The invention provides catalyst slurry for electrochemical synthesis of hydrogen peroxide, a gas diffusion electrode and a preparation method of the gas diffusion electrode, and belongs to the technical field of hydrogen peroxide electrosynthesis. The preparation method of the catalyst slurry comprises the following steps: (1) dissolving a surfactant 1 in water, adding a water repellent agent, and mixing to obtain a slurry component 1; (2) dispersing carbon powder in a mixed solvent, then sequentially adding a surfactant 2 and a thickening agent, and mixing and dispersing to obtain a slurry component 2; and (3) adding the slurry component 1 into the slurry component 2, and mixing to obtain the catalyst slurry. The gas diffusion electrode prepared by adopting the bi-component slurry and a slit extrusion coating process is more uniform in pore structure, and is beneficial to a mass transfer process in electrosynthesis of hydrogen peroxide, that is, the prepared gas diffusion electrode has more advantages compared with a traditional electrode form.

The invention relates to the technical field of capacitor electrode material preparation, and particularly discloses a high-performance coal pitch-based supercapacitor electrode material and a preparation method thereof. The preparation method of the electrode material comprises the following steps: mixing asphalt, an activating agent and a template agent, and carrying out ball milling treatment to obtain a first mixture; and carrying out heat treatment on the first mixture in an inert atmosphere, and then washing with a weak acid solution to obtain the electrode material with uniform pores. The activating agent and the template agent are synergistically mixed with the asphalt for pore forming, so that the pore structure of the electrode material can be accurately regulated and controlled, and the electrode material with uniform pore distribution and excellent electrical properties is obtained; meanwhile, the preparation method disclosed by the invention has the characteristics of simple process and environmental friendliness. The technical problems that an existing coal pitch-based capacitor carbon material is small in specific surface area, uneven and uncontrollable in pore structure, tedious in preparation process and not environmentally friendly are solved.

The invention relates to the technical field of reverse osmosis membrane preparation, and discloses an anti-oxidation reverse osmosis membrane preparation method, which comprises the following specific steps: S1, material preparation: selecting polyamide PA or polyvinylidene fluoride PVDF as a membrane material, selecting BHT2, 6-butylated hydroxytoluene or an antioxidant 1010 as an antioxidant, selecting N-methyl pyrrolidone NMP or dimethylformamide DMF as a solvent, and preparing a reverse osmosis membrane; the cross-linking agent is selected from glutaraldehyde or diisocyanate; s2, preparing a membrane solution, namely dissolving polyamide or polyvinylidene fluoride in an NMP (N-methylpyrrolidone) or DMF (dimethylformamide) solvent, stirring until polyamide or polyvinylidene fluoride is completely dissolved, adding an antioxidant and a cross-linking agent, and continuously stirring uniformly; s3, forming a film; s4, forming a film by a phase inversion method; s5, curing and post-processing; s6, surface modification; and S7, performance testing. By adding the antioxidant, the oxidative degradation process of the membrane material is effectively delayed, the service life of the membrane is prolonged, and the oxidation resistance of the membrane is further enhanced through plasma treatment, ultraviolet curing and CVD deposition of silicon dioxide.

The invention relates to the technical field of sewage treatment, in particular to a preparation method and application of a fly ash-based ceramsite filter material for a biological aerated filter, fly ash, red mud, coal gangue and a pore-forming agent are added, mixed, granulated, sintered for about 20 minutes at 1050-1120 DEG C and cooled to prepare ceramsite. The filter material is high in void ratio, large in specific surface area, resistant to acid and alkali, suitable for a biological aerated filter, beneficial to rapid biofilm formation and improvement of wastewater purification efficiency, especially capable of effectively removing chloride ions in desulfurization wastewater, capable of being recycled and capable of promoting solid waste recycling. Compared with a traditional clay filter material, the filter material has the advantages that the operation cost is reduced, the environmental protection benefit is improved, and the filter material is widely applicable to biochemical treatment and advanced treatment of domestic sewage and industrial wastewater.

The invention discloses isotropic three-dimensional communicated porous wave-absorbing ceramic and a preparation method thereof, and relates to the technical field of porous ceramic wave-absorbing materials.The method comprises the following steps that ceramic powder and lignocellulose are dispersed in deionized water and stirred to be uniform, and a mixed solution is obtained; pouring into a mold, freezing, performing vacuum freeze drying, and removing the mold to obtain a green body; and carrying out thermal cracking to prepare the isotropic three-dimensional communicated porous wave-absorbing ceramic. The porous wave-absorbing ceramic provided by the invention has good high temperature resistance, machinability and excellent wave-absorbing performance, and has potential application prospects in the field of wave absorption. The invention solves the problems of tedious preparation process and high cost of the existing wave-absorbing ceramic material.

The invention discloses a small mammal excrement resource utilization method, and belongs to the technical field of excrement reutilization, and the small mammal excrement resource utilization method comprises the following steps: collecting small mammal breeding base or breeding farm granular animal excrement, sieving to remove surface hair, residual feed and other impurities, and washing to remove residual urine. Then the obtained animal waste is dried at a high temperature to remove moisture and then pyrolyzed to prepare a formed granular biomass charcoal material which is used for the sewage treatment process of dye wastewater, heavy metal wastewater or antibiotic wastewater and the like, harmless treatment of the small mammal waste is realized, and effective measures are provided for resource utilization of the small mammal waste; and the preparation process is simple to operate and low in cost, and the obtained finished material has wide practicability.

The invention discloses citrus pectin-polyvinyl alcohol / chitosan composite hydrogel, a preparation method and application, and relates to the technical field of hydrogel, the preparation method of the citrus pectin-polyvinyl alcohol / chitosan composite hydrogel comprises the following steps: uniformly mixing a polyvinyl alcohol solution with a chitosan solution, and carrying out freezing-unfreezing circulation treatment to obtain the citrus pectin-polyvinyl alcohol / chitosan composite hydrogel. Polyvinyl alcohol / chitosan mixed gel is obtained; soaking the polyvinyl alcohol / chitosan mixed gel in a citrus pectin solution, performing ultrasonic treatment, filtering and drying to obtain the citrus pectin-polyvinyl alcohol / chitosan composite hydrogel. The prepared citrus pectin-polyvinyl alcohol / chitosan composite hydrogel is uniform in pore structure, good in water-retaining property, more stable in mechanical property and chemical property and good in biocompatibility.

This invention relates to the field of silicone technology, specifically to a silicone composite thermally conductive material and its preparation process. The preparation process of a silicone composite thermally conductive material includes: pretreatment of graphene filler, preparation of modified graphene filler, preparation and modification of heterogeneous filler, and preparation of the silicone composite thermally conductive material. This invention utilizes modified graphene and the construction of a boron nitride-silica heterogeneous filler to form a multi-level thermally conductive network. Combined with electric field-induced ordered arrangement of fillers and pretreatment of graphene with chemically reduced gel and directional ice template, multiple methods are used synergistically to reduce interfacial thermal resistance and phonon scattering, constructing continuous thermally conductive channels. Simultaneously, it improves the structural uniformity, thermal conductivity stability, and mechanical properties of the composite material, effectively solving problems such as filler agglomeration and migration, and significantly improving the thermal conductivity of the silicone composite material.

The invention discloses a production method for preparing autoclaved aerated concrete from solid waste tail gas powder, and relates to the technical field of concrete production.The production method of the autoclaved aerated concrete comprises the following steps that S1, large-particle impurities in the solid waste tail gas powder are screened out; s2, scrap iron, plastic and wood chips are removed; s3, humidity detection and evaluation are carried out; s4, screening treatment is conducted, and drying is conducted; s5, the dried solid waste tail gas powder is screened, ground and screened; s6, measuring the chemical composition of the solid waste tail gas powder; s7, adding an air entraining agent into the solid waste tail gas powder, the siliceous material and the calcareous material; s8, designing a three-factor three-level orthogonal test; and S9, post-treatment is carried out. According to the method, large-particle impurities in the solid waste tail gas powder are screened out, scrap iron, plastic and wood chips in the solid waste tail gas powder are removed, the solid waste tail gas powder can be purified, resource recycling is achieved, the quality of the autoclaved aerated concrete is improved, and the production cost is reduced.

The invention relates to the technical field of PE films, in particular to an ultrathin PE base film and a preparation method thereof. The ultra-thin PE base film is obtained by sequentially carrying out the steps of shearing and melting, extruding and casting and the like on ultra-high molecular weight PE. The ultrathin PE base film has good hydrophobicity and insulativity, and is ultrathin and uniform in thickness, low in air permeability and uniform in pore structure.

The invention discloses a calcareous material special for autoclaved aerated concrete and a preparation method thereof, the calcareous material comprises 90-96 wt% of limestone, 2-6 wt% of an iron raw material, 0-2 wt% of gypsum and 0-2 wt% of a silicon-aluminum material, and the calcareous material comprises the following minerals in percentage by mass: 42-55 wt% of f-CaO, 0-3 wt% of C4A3S, 22-45 wt% of the sum of the contents of C2S and C3S, 5-20 wt% of the sum of the contents of C3A and C4AF, 0-1.5 wt% of periclase and 0-2 wt% of gypsum, and the content of other impurity minerals is 0-6wt%. By optimizing mineral components and particularly controlling the content and activity of f-CaO, the content of silicate minerals is ensured, so that the proportion of the mineral components is beneficial to process production and quality control of the aerated concrete; the utilization rate of the calcium raw material is improved and the energy consumption is reduced through low-temperature calcination of a novel dry-process kiln.

The invention discloses a method for preparing a catalyst from an ultrasonic-assisted modified carbon-based material and application of the catalyst to hydrogen production through catalytic methane cracking. According to the method, the carbon-based material which is low in price, easy to obtain and high in thermal stability is used as a raw material, the catalyst with excellent methane catalytic activity is prepared by activating the carbon-based material with Na2CO3 under the assistance of ultrasonic waves, and an experiment of efficient hydrogen production through methane catalytic cracking is carried out on a fixed bed reactor; the methane cracking reaction temperature is reduced, only H2 and solid carbon are generated in reaction products, greenhouse gas is not generated, the production process is simple, and industrialization is easy.

The utility model discloses a high-magnification and high-capacity battery adopting a foam current collector. The high-magnification and high-capacity battery comprises a shell, a positive pole piece, a negative pole piece, electrolyte and a diaphragm, the positive pole piece and the negative pole piece are arranged on the shell, and an electrolyte and a diaphragm are arranged in the shell; the positive pole piece and / or the negative pole piece comprises a foamed three-dimensional pore structure current collector and an active substance filled in three-dimensional pores of the foamed three-dimensional pore structure current collector. The foamed current collector is used and comprises the positive electrode current collector and the negative electrode current collector, so that the energy density can be greatly improved under the condition of the same rate discharge capacity, and the rate discharge performance can be greatly improved under the condition of keeping the same energy density.

This invention relates to a multi-layer coated gas-generating aluminum paste, its preparation method, and its application. The preparation method includes the following steps: dry ball milling spherical aluminum powder under an inert gas atmosphere, adding a ball milling aid during the dry ball milling process, resulting in pre-coated aluminum powder; the dry ball milling includes ball milling using a single milling medium and / or a mixed milling medium; stirring and kneading the pre-coated aluminum powder, passivating agent, surfactant, and organic solvent under an inert gas atmosphere, and sieving to obtain a kneaded product, which is the multi-layer coated gas-generating aluminum paste. This invention utilizes a segmented combination of single-medium ball milling ("stearic acid-steel balls") and mixed-medium ball milling ("zinc stearate-zirconia beads and glass beads") to construct a gradient coating structure on the surface of the aluminum powder, achieving "slow release in the early stage and high efficiency in the later stage" gas-generating characteristics, which can meet the stringent requirements for gas generation rate in low-density autoclaved aerated concrete.

The invention belongs to the technical field of magnesium alloy materials, and discloses a high-energy-absorption flame-retardant foam magnesium alloy and a preparation method and application thereof.The preparation method of the high-energy-absorption flame-retardant foam magnesium alloy comprises the following steps that aluminum, bismuth, tin, zinc, manganese, cobalt, calcium, beryllium and magnesium are molten to obtain a molten metal matrix; mixing the molten metal matrix with a tackifier to obtain a composite melt; and the composite melt and a foaming agent are mixed and then subjected to heat treatment, cooling treatment and annealing in sequence, and the high-energy-absorption flame-retardant foam magnesium alloy is obtained. According to the preparation method, dependence on rare earth elements is reduced, the production cost is reduced, the pore structure can be effectively stabilized, and the preparation process is simplified.

The invention discloses anti-freezing thermal insulation concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials in parts by weight: 150 to 200 parts of cement, 90 to 110 parts of fly ash, 50 to 70 parts of silica fume, 12 to 18 parts of composite foaming agent, 200 to 300 parts of coarse aggregate, 100 to 200 parts of river sand, 30 to 50 parts of fiber, 2 to 5 parts of water reducing agent and 100 to 120 parts of water. The lightweight thermal insulation concrete prepared by using the composite foaming agent is uniform in pore structure, has good mechanical properties, low thermal insulation coefficient and good erosion resistance, and is excellent in comprehensive performance. Meanwhile, the waste animal feathers are effectively utilized, resources can be saved, the environment can be protected, and economic and social benefits are remarkable.

The invention discloses a geopolymer aerated concrete material based on active silicon powder gas generation and a preparation method of the geopolymer aerated concrete material. The geopolymer aerated concrete material based on active silicon powder gas generation comprises a powder component and a liquid component, the powder component comprises 70-100 parts by weight of a silicon-aluminum material, 0-30 parts by weight of mineral powder, active silicon powder and a retarder; active silicon powder is used as a foaming agent; the liquid component comprises an alkali metal silicate solution; when in use, the powder component and the liquid component are mixed according to the mass ratio of 1: (0.5-1.0). According to the geopolymer aerated concrete material based on active silicon powder gas generation, the preparation process can be carried out at normal temperature, the reaction process is mild and controllable, the process is simple, high-temperature and high-pressure steam curing is not needed, and meanwhile, the prepared geopolymer aerated concrete is light, high in strength, excellent in heat preservation and heat insulation performance, low in cost and suitable for industrial production. The method is suitable for industrialized production and cast-in-place construction of building thermal insulation materials.

The invention discloses a preparation method and application of a porous aluminum foil, and belongs to the technical field of material (aluminum foil) preparation and the field of lithium batteries (lithium ions and lithium metal), in the method, a precursor nanofiber membrane / aluminum foil composite is prepared through combination of electrostatic spinning and electrostatic spraying technologies, and then the porous aluminum foil is prepared through a sintering process. The prepared porous aluminum foil is used as a counter electrode for battery assembly, the porous structure of the porous aluminum foil is beneficial for improving the wettability of an electrolyte, the possibility of side reaction between an electrode material and the electrolyte is reduced, and the cycle life is further prolonged; the porous structure is more beneficial to rapid shuttling of electrolyte ions between electrodes and is also beneficial to filling of more active substances, so that the electrochemical performance is remarkably improved; the preparation method is simple to operate, short in time consumption, controllable in reaction, low in energy consumption and low in cost, and has extremely high practical and large-scale prospects.

The invention belongs to the technical field of polymeric membrane materials, and particularly relates to a high-temperature-resistant polyimide membrane and a preparation method thereof.The preparation method comprises the steps that 1, aromatic diamine and aromatic dianhydride are subjected to condensation polymerization, and ether-containing polyamide acid is obtained; (2) preparing an amphiphilic block polymer of which the molecular weight distribution is not greater than 1.15 by using an anionic polymerization method or a free radical polymerization method; (3) mixing ether-containing polyamide acid, the amphiphilic block polymer and a phenolic resin cross-linking agent, adding the mixture into a polar aprotic solvent, and stirring to obtain a precursor solution; and (4) casting the precursor solution, heating and crosslinking to obtain the polyimide diaphragm. The thickness of the prepared diaphragm is 50-200 microns, the diaphragm can resist high temperature up to 900 DEG C, the safety performance of the battery in a high-temperature environment can be effectively improved, the uniform mesoporous structure of the diaphragm is beneficial to guiding uniform deposition of lithium ions and fundamentally inhibiting growth of lithium dendrites, and the good flexibility and mechanical property can meet the normal use requirement of the lithium ion battery.

The invention relates to the technical field of food processing, and discloses a steamed bun making method which comprises the following steps: providing leavening dough, and fermenting under specific temperature and humidity conditions to obtain leavening dough; mixing the leavening dough with wheat flour and ingredients, and blending into dough; fermenting the dough under a specific temperature and humidity condition until the dough is expanded to a specified multiple; the fermented dough is cut into small dough, and the small dough is fermented after being formed; and steaming the fermented dough, and cooling to obtain the finished steamed bun. The preparation method of the sour dough comprises the following steps: selecting wheat flour and water in a weight ratio of (1: 3)-(1: 5), and mixing and stirring the wheat flour and the water into paste; and adding active dry yeast and white granulated sugar, and uniformly stirring. By adding the ingredients, optimizing the making process and adjusting the proportion of the ingredients, the hardness of the steamed buns is controlled to be 1000-1200 g, the elasticity reaches 0.8-0.95, air holes are uniformly distributed, the specific volume is 1.8-2.2 m l / g, and the requirements of high-quality steamed buns for softness, lightness and rich levels are met.

This invention relates to an ordered macroporous polysaccharide microsphere chromatographic medium and its preparation method, belonging to the field of chromatographic medium technology. The preparation method includes the following steps: dissolving polysaccharide powder in an alkaline urea solution to obtain a polysaccharide solution; adding regular calcium carbonate whiskers as pore-forming templates to the polysaccharide solution and stirring to obtain a mixed solution; adding the mixed solution as an aqueous phase to an oil phase, forming a water-in-oil emulsion under the action of a surfactant; emulsifying for a period of time, solidifying the microspheres using an acid regeneration method and removing the calcium carbonate whiskers; using the length of the calcium carbonate whiskers as a sieving standard, sieving using a filter screen with a pore size equal to the length of the calcium carbonate whiskers; the microspheres with a size smaller than the length of the calcium carbonate whiskers are the ordered macroporous polysaccharide microsphere chromatographic medium. Compared with the prior art, the preparation process of this invention is simple, the pore structure is interconnected and uniform, and there are no narrow pore throats, significantly improving mass transfer performance, and it is expected to serve as a high-performance chromatographic medium platform-type microsphere.

The invention belongs to the technical field of anode foil manufacturing, and particularly relates to a preparation method of a high-water-resistance aluminum anode foil. In order to solve the problem that in the prior art, water resistance and leakage current reverse side performance are not ideal enough, the preparation method of the high-water-resistance aluminum anode foil is provided and comprises the steps that a formed foil is soaked in an acid solution and then washed with deionized water, and the washed formed foil is obtained; performing heat treatment to obtain a heat-treated formed foil; soaking the foil in pure water, cleaning the foil with deionized water, and performing heat treatment after cleaning to obtain a secondary heat-treated formed foil; and soaking in a treating fluid containing nickel acetate, cobalt acetate, sodium silicate, ammonia, potassium dichromate and triethanolamine for 5-10 minutes, then cleaning with deionized water, and drying in a drying oven to obtain the high-water-resistance aluminum anode foil. According to the invention, on the basis of the existing formed aluminum foil, further treatment is carried out, so that the water resistance of the formed aluminum foil is improved, the leakage current of the formed aluminum foil is reduced, the operation steps are simple, and the production cost is relatively low.