249 results about "Acid resistance" patented technology

The invention relates to the technical field of adhesive tapes, and particularly discloses a UV (ultraviolet) visbreaking anti-acid adhesive tape for thinning flexible glass and a preparation process of the UV visbreaking anti-acid adhesive tape. A UV viscosity-reducing acid-resistant adhesive tape for thinning flexible glass comprises a base material layer, a pressure-sensitive adhesive layer and a release film layer which are stacked in sequence, and the pressure-sensitive adhesive layer is prepared from the following raw materials: 85-120 parts by mass of an acrylate copolymer, 3-5 parts by mass of a cross-linking agent, 1.5-2.5 parts by mass of a photoinitiator, 2-5 parts by mass of an acid-resistant nano filler and 0.2-0.4 part by mass of an amine catalyst; the acrylate copolymer is prepared from the following raw materials in parts by mass: 20-30 parts of an imidazolinyl-containing monomer, 15-25 parts of a large-steric-hindrance alkyl-containing monomer, 45-55 parts of a flexible monomer and 5-10 parts of a carboxyl-containing monomer. The UV visbreaking acid-resistant agent prepared by the invention has relatively good acid resistance and reliable UV visbreaking and high initial bonding balance.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to modified piperazine pyrophosphate, a composite flame retardant and a preparation method and application of the modified piperazine pyrophosphate and the composite flame retardant. The modified piperazine pyrophosphate provided by the invention is obtained by modifying piperazine pyrophosphate with a modifier; the modifier comprises silicon resin. According to the preparation method, the piperazine pyrophosphate is modified by adopting a specific type of silicon resin as a modifier, and the piperazine pyrophosphate is coated by utilizing a three-dimensional network structure of the silicon resin, so that the hydrophobicity and the flowability of the piperazine pyrophosphate powder can be improved, and the piperazine pyrophosphate powder has good dispersity in a high polymer material; and the paint has good flame retardance, water resistance, acid resistance and alkali resistance.

The invention relates to the technical field of membrane separation, and discloses a polythiourea composite nanofiltration membrane as well as a preparation method and application thereof. The composite nanofiltration membrane comprises a bottom layer, a porous support layer and a polythiourea separation layer which are arranged in sequence, wherein the polythiourea separation layer comprises a structural unit A from polyamine and a structural unit B from a polyisothiocyano compound; wherein the structural unit A and the structural unit B are connected through a structure shown in a formula I, Ar1 is a residue obtained after a reaction of a compound containing polyisothiocyano groups, and Ar2 is a residue obtained after a reaction of polyamine. The separation layer structure of the polythiourea composite nanofiltration membrane contains C = S bonds, a large number of hydrogen bonds can be formed, the polythiourea composite nanofiltration membrane has excellent chemical stability, the structural stability of the composite nanofiltration membrane in a strong acid environment is remarkably improved on the premise that the separation performance of the composite nanofiltration membrane is guaranteed, and the acid resistance of the composite nanofiltration membrane is improved.

The application discloses a kind of corrosion-resistant aluminum alloy profiles and preparation method thereof, belong to aluminum alloy profile technical field.The application can ensure the strength of aluminum alloy profile by optimizing the composition of corrosion-resistant aluminum alloy, and has a positive effect on the corrosion resistance of aluminum alloy profile.In addition, the application forms a corrosion-resistant coating on the surface of the corrosion-resistant aluminum alloy substrate by laser cladding, which can significantly improve the corrosion resistance of the aluminum alloy profile while ensuring the application performance of the aluminum alloy profile.In the corrosion-resistant coating, nickel powder can enhance the resistance to pitting and intergranular corrosion, and improve the adhesion to the aluminum alloy substrate.Boron nitride can improve the surface acid resistance and wear resistance of the aluminum alloy profile, and block the corrosion channel.Lanthanum oxide and cerium dioxide have a synergistic effect, which can refine the surface grains, reduce the pores generated during the cladding process, improve the compactness of the coating, promote the compatibility with the aluminum alloy substrate, and ensure the appearance quality of the aluminum alloy profile.

The invention relates to an acid-resistant nanofiltration membrane and a preparation method thereof, and relates to the technical field of nanofiltration membranes. The acid-resistant nanofiltration membrane comprises a supporting base layer and a functional layer, the functional layer is formed by interfacial polymerization on the supporting base layer, the supporting base layer comprises a polyetherimide-nanomembrane, raw materials of the functional layer comprise an oil-phase solution and a water-phase solution, the oil-phase solution comprises 1, 3, 5-benzene trisulfonyl chloride and an oil-phase solvent, and the water-phase solution comprises 1, 3, 5-benzene trisulfonyl chloride and a water-phase solvent. The water-phase solution comprises piperazine and a water-phase solvent; the method has the effect of improving the acid resistance of the nanofiltration membrane.

The invention discloses a soil stabilizer, environment-friendly acid-resistant early-strength type flow-state stabilized soil and application, and particularly discloses a soil stabilizer which comprises the following components in parts by weight: 5-10 parts of cement, 3-12 parts of modified lithium slag powder, 2-8 parts of regenerated micro powder, 2-8 parts of water glass and 40-50 parts of water. The invention further discloses environment-friendly anti-acid early-strength type fluid-state solidified soil containing the soil solidifying agent, and the environment-friendly anti-acid early-strength type fluid-state solidified soil further comprises 3-10 parts of fly ash and 175-195 parts of soil. The invention further discloses application of the soil stabilizer in foundation preparation or foundation pit backfilling. The problems that in the prior art, industrial by-products such as lithium slag and construction waste pollute the environment, and acid soil cannot serve as a solidified soil raw material are solved. The lithium slag and the regenerated micro powder are subjected to resource utilization, so that the acid resistance of the solidified soil can be improved, and meanwhile, the early strength of the solidified soil is greatly improved.

The invention provides an LTCC raw material belt with a high thermal expansion coefficient, an LTCC substrate and a preparation method of the LTCC substrate, the LTCC raw material belt with a smooth surface and a uniform thickness is obtained through tape casting by adjusting the proportion of silicon dioxide ceramic powder, MgTiO3 ceramic, SrTiO3 ceramic, Li2MgSiO4 ceramic, BCBS, ZABS and LASP microcrystalline glass powder, the LTCC raw material belt is sintered in a nitrogen furnace at 880-940 DEG C for 1-3 h, and the LTCC raw material belt can be co-fired with low-cost copper electrode slurry to be flat and tightly attached to the low-cost copper electrode slurry. The LTCC substrate with the thermal expansion coefficient larger than 11 ppm / DEG C is prepared, under the test frequency of 5 GHz, the dielectric constant of the LTCC substrate ranges from 5.1 to 6.1, the dielectric loss ranges from 0.0025 to 0.004, the bending strength ranges from 170 MPa to 230 MPa, the thermal expansion coefficient at the temperature ranging from 30 DEG C to 400 DEG C ranges from 11.0 ppm / DEG C to 13.0 ppm / DEG C, and acid resistance is good.

The invention relates to the technical field of chemical fiber production, in particular to an acid-resistant high-modulus para-aramid fiber and a preparation method thereof.The preparation method comprises the steps that S1, a spinning solution of para-aramid is extruded through a spinneret plate to form nascent fibers; s2, immersing the nascent fiber into a coagulating bath containing diisocyanate for soaking reaction to obtain a modified tow; s3, the modified tows are subjected to tension merging and synchronous twisting, then multi-stage drying treatment is conducted, and the acid-resistant high-modulus para-aramid fibers are obtained. The high-model para-aramid fiber prepared by the method shows higher stability and longer service life in a strong acid environment, and is suitable for application fields requiring higher acid resistance, such as protective materials, corrosion-resistant coatings, high-performance composite materials and the like. The preparation method provided by the invention provides an innovative and effective improved technology for production of the para-aramid fiber, and has relatively high industrial application value.

The invention relates to the technical field of copper smelting, in particular to an MOF composite membrane capable of selectively adsorbing rhenium and a preparation method and application of the MOF composite membrane. The preparation method of the MOF composite membrane capable of selectively adsorbing rhenium, provided by the invention, comprises the following steps: dispersing a sulfonic acid functionalized UiO-66 type metal organic framework material in a polyvinylidene fluoride solution to obtain a metal organic framework material dispersion liquid; mixing the metal organic framework material dispersion liquid with a cross-linking agent, carrying out a cross-linking reaction, and then mixing the obtained reaction liquid with an acid-resistant ionic liquid to obtain a spinning solution; performing electrostatic spinning on the spinning solution to obtain a silk membrane; and dipping the silk membrane in an amino silane coupling agent solution, and curing to obtain the MOF composite membrane capable of selectively adsorbing rhenium. The MOF composite membrane capable of selectively adsorbing rhenium provided by the invention can selectively adsorb rhenium in waste acid treatment, so that selective separation of rhenium is realized, and meanwhile, the membrane has excellent acid tolerance.

The invention discloses foam concrete based on acidic iron tailing sand. The foam concrete comprises the following components in parts by weight: 200-500 parts of cement, 100-400 parts of acidic iron tailing sand, 50-150 parts of superfine slag powder, 15-25 parts of a composite acid-resistant foaming agent solution, 1-10 parts of composite fibers and 200-300 parts of water, the composite acid-resistant foaming agent solution is prepared by mixing a composite acid-resistant foaming agent and water, and the composite fiber comprises a combination of organic reinforced fiber and inorganic modified fiber. According to the preparation method, the long-term stability and the acid resistance of the foam concrete can be remarkably improved, and meanwhile, the overall performance of the foam concrete is remarkably improved by utilizing the acid resistance and the high temperature resistance of the polymer coated aluminum silicate fibers.

The invention discloses a long-acting stable filling agent for phosphorite mining and a preparation method and application thereof, the long-acting stable filling agent takes cement, slag powder, phosphogypsum and fly ash as matrix components, and is supplemented with additives such as a nano modified liquid, a retarder and an early strength agent. The 3d compressive strength reaches 4.6-5.5 MPa, the 28d compressive strength reaches 13.5-15.5 MPa, the 90d strength retention rate in a simulated acid environment is larger than or equal to 84%, the volume shrinkage rate is smaller than or equal to 0.5%, and the early strength and the excellent long-term acid-resistant stability are both high. Through a synergistic effect of a nano-micron composite structure, pores are filled with nano particles and secondary hydration is promoted, basalt fibers are bridged to resist cracking, and nano montmorillonite blocks acid etching, so that unification of high early strength and long-acting acid resistance is realized. The material is simple and convenient in preparation process, can be efficiently used for mining and filling of phosphorite mountains, and meets the requirements of rapid support and long-term acid medium erosion resistance.

The present application belongs to a kind of anti-tarnish sealant, for the technical problem that existing anti-tarnish agent can only extend the tarnish time, reduce the degree of tarnish, and the high temperature stability is poor, the silver-plated parts after treatment poor acid and salt fog ability, provide a kind of silver coating water-based anti-tarnish sealant, anti-tarnish film and its preparation method, anti-tarnish sealant includes yttrium zirconium composite sol, silane coupling agent, alkyl mercaptan, emulsifier, wetting agent, penetrant and water, it is proved to have the dual role of anti-tarnish and sealing silver coating hole, can significantly improve the anti-tarnish ability and acid and salt fog resistance of silver coating, and has very high high-temperature stability, can withstand 900 ℃ high-temperature baking.

The invention relates to an N-PETG composite functional master batch as well as a preparation method and application thereof. The N-PETG composite functional master batch is prepared from the following raw materials in parts by weight: 35 to 70 parts of N-PETG carrier, 25 to 60 parts of pigment and 1 to 5 parts of additive. The N-PETG composite functional master batch provided by the invention has the advantages of excellent dispersing performance, heat resistance, mechanical property and high color fastness. The invention also provides the N-PETG composite material, through reasonable raw material proportioning and process setting, the heat resistance, acid resistance, high and low temperature cycle resistance, mechanical property and appearance attractiveness of the N-PETG composite material are improved, compared with a traditional composite material, the preparation process is simpler, the raw materials are cheaper and easier to obtain, and the N-PETG composite material is green and environment-friendly in the processing and using process and is suitable for industrial production. The material has a good application prospect in refrigerator liner materials.

The invention provides an organic silicon spraying powder processing technology, and belongs to the technical field of organic silicon spraying powder manufacturing, and the organic silicon spraying powder processing technology comprises the following steps: S1, mixing organic silicon resin, pigments and fillers, a necessary leveling agent, a defoaming agent and other assistants according to a certain proportion, and heating to make the mixture reach the use performance index; s2, the glossiness of the powder is not lower than 90 degrees, and after the powder is soaked in a sulfuric acid diluted solution for 750 hours, the powder is still not adhered to a filter bag after being re-dried for 5 hours at 220 DEG C; the organic silicon spraying powder obtained through processing has excellent acid resistance and alkali resistance, after being soaked in a sulfuric acid diluted solution with the pH value being 2 and a sodium hydroxide diluted solution with the pH value being 12 for 750 hours, the organic silicon spraying powder does not stick to a filter bag even after being re-dried for 5 hours at the high temperature of 280 DEG C, a coating formed by the powder can be kept stable for a long time in an extreme corrosive environment, and the service life of the coating is prolonged. Corrosion of the equipment surface is effectively prevented, so that the service life of the equipment is prolonged.

Provided is a high strength steel plate for a sour-resistant line pipe with excellent low-temperature toughness as well as HIC and SSCC resistance. The high strength steel plate for a sour-resistant line pipe has a chemical composition containing, by mass%, C: 0.030-0.060%, Si: 0.01-0.50%, Mn: 0.80-1.80%, P: 0.015% or less, S: 0.0015% or less, Al: 0.010-0.080%, Cr: 0.05-0.50%, Nb: 0.005-0.080%, N: 0.0010-0.0080%, and Ca: 0.0005-0.0050%, with the balance being Fe and inevitable impurities, in which a microstructure at 0.25 mm below a surface of the steel plate consists of granular bainite and tempered martensite austenite constituent, a maximum grain size is 80 µm or less and an average grain size is 20 µm or less at a mid-thickness position of the steel plate, a brittle-ductility transition temperature in a Charpy impact test is -100 °C or lower, and a tensile strength is 535 MPa or more.

The utility model discloses a long cable connecting device for an irradiation-resistant camera, and belongs to the technical field of nuclear waste treatment. The long cable connecting device comprises a connecting assembly, a long cable and a metal hose, the connecting assembly is used for being connected with an irradiation-resistant camera, and the connecting assembly is made of an acid-resistant material; one end of the long cable penetrates into the connecting assembly and is electrically connected with a cable of the radiation-resistant camera, and the other end of the long cable penetrates out of the connecting assembly and is connected with hoisting equipment; and the metal hose is made of an acid-resistant material, is connected to the top end of the connecting assembly, and is used for coating the part, penetrating out of the connecting assembly, of the long cable. According to the utility model, the long cable is separated from the acid mist environment through the metal hose, so that the problems of aging and cracking of the long cable in the acid mist corrosion environment for a long time can be solved, and the stability and reliability of remote monitoring of the irradiation-resistant camera are ensured; and the tension effect at the joint of the long cable and the irradiation-resistant camera can be eliminated, and the long-term sealing effect of the long cable connecting device is ensured.

The invention discloses an anti-corrosion composite coating for an ammonia gas engine, relates to an anti-corrosion technology for an ammonia gas fusion engine, and solves the technical problem that the reliability, durability and commercialization process of an ammonia fuel engine are restricted by the existing engine material system and protection technology. The composite coating comprises a base material arranged on the surface of the ammonia gas engine component; the base material layer is adjacent to the base material layer, is arranged on the surface of the base material and is used for resisting ammonia-alkali corrosion; the middle transition layer is arranged on the surface of the adjacent base material layer and is used for component gradient transition and stress relief; and the outermost surface layer is arranged on the surface of the middle transition layer and is used for resisting acid corrosion and pitting corrosion. The invention further discloses an intelligent corrosion prevention system and method for the ammonia gas engine. The invention solves the problem of limited protection performance of the traditional single coating.

The application provides a photosensitive dry film and a preparation method and application thereof, and belongs to the technical field of photosensitive materials. The preparation method comprises the following steps: adding an alkali-soluble resin, a modified resin, a photosensitive monomer, a photoinitiator, methanol, acetone and a defoaming agent into a stirring kettle to stir, so as to obtain a photosensitive resin slurry; coating the photosensitive resin slurry on a substrate layer, baking, and forming a photosensitive layer; and attaching a protective layer to the photosensitive layer, so that the photosensitive dry film is obtained. The alkali-soluble resin is obtained by monomer reaction of ethyl methacrylate, methacrylic acid, benzyl acrylate, styrene and dodecafluoroheptyl methacrylate. The photosensitive dry film prepared by the application has excellent adhesion and resolution, good acid resistance, plating resistance, hole covering performance and etching resistance, and is helpful to improve the yield and increase the production capacity.

The invention belongs to the technical field of packaging materials, and particularly relates to an aluminum foil cover film with high stripping force and high acid resistance and a production process of the aluminum foil cover film. The aluminum foil cover film is formed by sequentially compounding a PET layer, an aluminum foil layer and a film blowing PE layer in a dry mode, the film blowing PE layer is composed of a layer A, a layer B and a layer C which are sequentially connected, and the aluminum foil layer is connected with the layer A through an adhesive; the layer A consists of first linear low-density polyethylene and second linear low-density polyethylene; the layer B is prepared from first linear low-density polyethylene, second linear low-density polyethylene and high-density polyethylene; and the layer C consists of first linear low-density polyethylene, third linear low-density polyethylene and an anti-blocking agent. The aluminum foil cover film prepared by the invention has relatively high stripping force, can effectively prevent layering and bag breaking when being used in a high-temperature and high-humidity environment, and has excellent acid resistance.

To provide a glass substrate which has a low dielectric dissipation factor in high-frequency ranges, has high glass homogeneity, making it less apt to opacification, and offers excellent acid resistance.SOLUTION: The present invention pertains to a glass substrate containing, in mol percent on an oxide base: 0.1-13% of alkaline earth metal oxides in total; 1-40% of Al2O3 and B2O3 in total, where the molar ratio Al2O3 / (Al2O3+B2O3) is 0-0.45; and 0.1-1.0% of one or more selected from the group consisting of TiO2, Y2O3, and ZrO2 in total, where ZrO2 is 0.1% or less. The main component of the glass substrate is SiO2. The glass substrate has a dielectric loss tangent of 0.007 or less at 35 GHz.SELECTED DRAWING: None

This application relates to a process for preparing a filled wax-free adsorption pad, which is obtained by the following method: Step 1) PE foam material is foamed to form a porous structure of several foam skins; a modified PE board has several slots; Step 2) Adhesive is applied to the surface of the foam skins, and then the adhesive side of the foam skins is attached to the slots of the modified PE board, with the foam skins and slots corresponding one-to-one, and fixed to obtain a filled wax-free adsorption pad; both the PE foam material and the modified PE board contain an acid-resistant blend modifier; the acid-resistant blend modifier is composed of nano-lithium-based inorganic bentonite, polystyrene-poly(heptaisobutyl cage-type polysilsesquioxane alkylpropyl-methacrylate), maleic anhydride graft, and aromatic polyamide hyperbranched polymer. The filled wax-free adsorption pad obtained by the above technical solution ensures basic performance, further improves acid resistance, reduces wear, breakage, swelling, etc., and improves service life.

The invention relates to acid-resistant glass powder suitable for N-type battery front fine grid LECO slurry as well as a preparation method and application of the acid-resistant glass powder. The glass powder disclosed by the invention contains more silicon dioxide and titanium dioxide, so that the acetic acid resistance of the glass powder is greatly improved; due to the net-shaped structure of SiO2, the coating has excellent chemical stability and can effectively resist erosion of acetic acid; tiO2 is used as a network intermediate, so that the acetic acid corrosion resistance of the glass powder is further enhanced; through experimental tests, in the same acetic acid environment, the acetic acid attenuation rate of the conductive silver paste prepared from the glass powder is reduced by 30-50% compared with that of the traditional silver paste; when the glass powder is applied to the front fine grid LECO slurry, the corrosion of acetic acid steam can be resisted on the premise of ensuring the electrical performance, and the acetic acid attenuation rate of a battery piece is greatly reduced, so that the reliability of a photovoltaic module is improved, and the service life of the photovoltaic module is prolonged.

An embodiment of the present invention relates to an organic solvent-releasable curable resin composition which comprises a (meth)acrylate-based monofunctional monomer and a photopolymerization initiator, does not comprise a polymer having a weight average molecular weight of 5000 or more, and does not have an acid value. The organic solvent-releasable curable resin composition according to the present invention can be easily cured even with a single-wavelength LED lamp installed in an inkjet printer, and can have acid resistance and alkali resistance.

The invention discloses a preparation method and application of a Ni-NH2-MOF-coated HPP-COF composite material for adsorbing and separating perfluorocarbon gas / nitrogen, and belongs to the field of gas separation. The method comprises the following steps: 1, preparing HPP-COF powder; 2, preparing Ni-NH2-MOF (Metal Organic Framework) powder; and 3, compounding. According to the invention, Ni-NH2-MOF and HPP-COF are introduced into the field of gas adsorption, and a method for combining COF and MOF materials is creatively provided by utilizing the interaction of specific recognition of a perfluorinated compound and an amino group and a polymerization reinforcing structure on the surface of HPP-COF; a PFCs / N2 mixed gas separator meeting actual production requirements is prepared, the high adsorption capacity of MOF and the high stability of COF are combined, the problems that a traditional static porous material is poor in selectivity, stability and acid resistance are solved, specific adsorption of MOF to PFCs is enhanced, and selectivity is improved.

The application provides a kind of grooving ultra-thin glass and its processing method, the ultra-thin glass includes thinning area and non-thinning area, the thinning area includes folding area, and transition area symmetrically arranged at both ends of the folding area, the transition area and the folding area are smoothly connected, both ends of the transition area are smoothly connected non-thinning area;The processing method includes attaching acid-resistant film on one side surface of ultra-thin glass to obtain glass sample, freezing both ends of the glass sample respectively, and then completing the grooving of ultra-thin glass through etching process and cleaning process.In the application, the processing method of ultra-thin glass grooving is provided, which is cooperated by freezing, etching process and cleaning process, and the specific steps of each operation are controlled, which greatly increases the impact resistance of ultra-thin glass, and the transition area of ultra-thin glass after grooving is very smooth, the overall operation is simple, the cost is low, the grooving effect is good, and it is suitable for popularization and use.

The invention discloses an alloy composite grounding material suitable for acid red soil and a preparation method thereof, and relates to the field of grounding materials.The preparation method comprises the following steps that alloy raw materials are taken and melted, and a melt is obtained; the alloy raw materials comprise the following components in percentage by weight: 4 to 6 percent of Ni, 8 to 10 percent of Al, 0.1 to 0.3 percent of Mo, 0.001 to 0.03 percent of Nb and the balance of Cu; coating the melt on the surface of the core material, and cooling to obtain a semi-finished product; and drawing and annealing the semi-finished product to obtain a finished product. The nickel is added into the alloy raw materials, so that the acid resistance and corrosion resistance of the material can be greatly improved, the anode activity is reduced, and the corrosion resistance of the alloy in a reducing environment is enhanced by adding the molybdenum; niobium can improve the strength and creep resistance of the alloy material. The crystalline flake graphite and the carbon fibers are doped between the alloy layer and the core material, so that the corrosion resistance is improved, and the problem of flexible connection between the alloy layer and the core material is solved; according to the method, the gradient penetrating rate is adopted, and the alloy layer of a partial amorphous structure is obtained. And the alloy with an amorphous structure has excellent corrosion resistance.

This invention provides a highly thermally stable enteric-coated DHA microcapsule powder, its preparation method, and its applications. The microcapsule powder utilizes a composite wall material system with a specific ratio of raw materials: carbohydrate film-forming materials, protein film-forming materials, hydrophilic colloids, and dietary fiber materials. The resulting dense wall material not only maintains a supportive interface and film-forming structure under hot water reconstitution conditions, exhibiting high-temperature reconstitution stability, but also features an acid-resistant design, ensuring resistance to acid in aqueous solutions and reducing the nausea / gastric reflux after oral administration of the microcapsule powder. This achieves a balance between high-temperature and acid resistance, overcoming the problems of dispersion and nausea / gastric reflux associated with traditional DHA microcapsules. Furthermore, the microcapsules of this invention, through a synergistic system of "lipid-soluble antioxidants + aqueous antioxidants / reducing agents," reduce accelerated oxidation and off-flavor release during high-temperature reconstitution, thereby improving flavor acceptability.

The invention belongs to the technical field of microbial fermentation, and particularly relates to rhodotorula mucilaginosa JQRM001 and application thereof. The invention provides a rhodotorula mucilaginosa JQRM001, the Latin name of the rhodotorula mucilaginosa JQRM001 is Rhodotorula mucilaginosa, the rhodotorula mucilaginosa JQRM001 is preserved in China General Microbiological Culture Collection Center, the address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the preservation date is July 15, 2025, and the preservation number is CGMCC No.35240. The invention further provides a preparation method of the rhodotorula mucilaginosa. The rhodotorula mucilaginosa JQRM001 not only has excellent performance of high temperature resistance and acid resistance, but also can be used for specifically synthesizing alkylpyrazine flavor substances and remarkably improving the antioxidant activity of plant polysaccharides.

The application discloses a leakage-proof long-service-life energy storage battery cooling concentrate as well as a preparation method and application thereof. The leakage-proof long-service-life energy storage battery cooling concentrate comprises the following components: ethylene glycol, a surface tension improver, a buffer, a benzotriazole compound and an organic acid. The cooling concentrate has excellent heat conduction performance, metal corrosion resistance, acid resistance, leakage prevention performance and super-long service life, and the cooling concentrate also has good environmental protection performance. By using the cooling concentrate, the performance and service life of the energy storage battery can be effectively improved, the operation and maintenance cost is reduced, and a powerful guarantee is provided for the safe and stable operation of a power system.

The invention belongs to the technical field of reinforced concrete structure cathode protection, and particularly relates to an alkali-activated secondary anode material with high electrocatalytic activity and stability and a preparation method. According to the invention, an alkali-activated cementing material matrix which is subjected to functional modification and blending and has excellent acid resistance is adopted, and a chemical raw material with composite calcium hydroxide (or calcium oxide) as a main component or a large amount of industrial byproducts (such as carbide slag) and solid wastes are used as functional components for optimizing conductivity; and the secondary anode material with excellent electric polarization stability, electrocatalytic activity and long service life is constructed. Compared with the traditional alkali-activated anode material, the alkali-activated anode material disclosed by the invention shows remarkable advantages in the aspects of material composition, preparation process and practical application performance.