298 results about "Acid resistance" patented technology

The invention discloses a corrosion-resistant aluminum alloy profile and a preparation method thereof, and belongs to the technical field of aluminum alloy profiles. By optimizing the components of the corrosion-resistant aluminum alloy, the strength of the aluminum alloy profile can be guaranteed, and the corrosion resistance of the aluminum alloy profile is positively influenced. Besides, the corrosion-resistant coating is formed on the surface of the corrosion-resistant aluminum alloy base material in a laser cladding mode, the corrosion resistance of the aluminum alloy profile can be remarkably improved while the application performance of the aluminum alloy profile is guaranteed, and in the corrosion-resistant coating, nickel powder can enhance pitting corrosion resistance and intergranular corrosion resistance, so that the corrosion resistance of the aluminum alloy profile is improved. The adhesive force with an aluminum alloy base material is improved; the boron nitride can improve the acid resistance and wear resistance of the surface of the aluminum alloy profile and block a corrosion channel; the lanthanum oxide and the cerium dioxide have a synergistic effect, so that surface grains can be refined, air holes generated in the cladding process are reduced, the compactness of the coating is improved, the compatibility with an aluminum alloy base material is promoted, and the apparent quality of the aluminum alloy profile is guaranteed.

The invention relates to the technical field of water treatment, in particular to a reverse osmosis membrane and a preparation method thereof. The preparation method of the reverse osmosis membrane comprises the following steps: soaking a base membrane in a water phase solution, taking out the base membrane, drying the surface of the base membrane, coating the base membrane with an oil phase solution, carrying out interfacial polymerization reaction, curing, coating with a modifier solution, and drying to obtain the reverse osmosis membrane, the modifying agent comprises 2, 4, 6-tri (4-aminophenyl)-1, 3, 5-triazine-1, 3, 5-tri (4-methyl phenyl) benzene. The successfully grafted COFs can improve the water permeability of the membrane to a certain extent, and also can improve the pollution resistance, acid resistance and oxidation resistance of the membrane, so that the service life of the membrane is prolonged. According to the invention, different effects of the same type of imino COFs introduced to the reverse osmosis membrane are further compared, so that the excellence of the selected imino COFs is highlighted.

The present invention relates to the field of water treatment technology, and more particularly to a kind of reverse osmosis membrane and preparation method thereof.The preparation method of the reverse osmosis membrane includes:Basement membrane is soaked in aqueous phase solution, after taking out surface drying, oil phase solution is coated on basement membrane and carries out interfacial polymerization reaction, after solidification, coating modifier solution, after drying, obtain reverse osmosis membrane;The modifier includes 2,4,6-tris (4-aminophenyl) ‑1,3,5-triazine ‑1,3,5-tris (4-methylphenyl) benzene.The COFs successfully grafted by the present invention can improve the water permeability of membrane to a certain extent, and can also improve the anti-pollution property, acid resistance and oxidation resistance of membrane, and then improve the service life of membrane.The present invention further compares the different effects that the same type of imino COFs are introduced into reverse osmosis membrane, so as to highlight the excellence of the imino COFs selected by the present invention.

The invention provides an oil-water separation mineralization net film as well as a preparation method and application thereof. The oil-water separation mineralization net film comprises an organic layer crosslinked on a grid substrate, the inorganic layer grows in the organic layer in an in-situ mineralization manner; the organic layer is a polymer layer formed by coating a polymer solution containing a cross-linking agent on the grid substrate for cross-linking; the inorganic layer is an inorganic mineral particle layer which grows on the surface of the organic layer in an in-situ mineralization mode. The mineralized net film for oil-water separation not only has excellent binding capacity with the grid substrate, but also has high chemical stability of acid resistance, alkali resistance and organic solvent resistance and excellent mechanical performance, and can be widely applied to oil-water separation under complex conditions.

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.

Disclosed in the present invention are an acid-resistant noble metal ion adsorption film and a preparation method therefor. The preparation method comprises: a) pretreatment of a base film: firstly, cleaning and drying a silicon carbide substrate to obtain a clean film; then performing oxidation treatment on the clean film to obtain a micro-oxidation film; and finally, placing the micro-oxidation film in a strong acid solution for acidification treatment, to obtain a base film modified with a hydroxyl functional group; b) the growth of an MOF seed crystal: placing the obtained base film modified with the hydroxyl functional group into a seed crystal growth solution, and reacting at 110-130°C for 12-24 hours to obtain a film loaded with the MOF seed crystal; and c) MOF secondary growth: placing the prepared film loaded with the MOF seed crystal into a secondary growth solution, and reacting at 110-130°C for 20-30 hours to obtain the acid-resistant noble metal ion adsorption film. The adsorption film prepared according to the present invention has good acid resistance, and can achieve efficient and stable recovery of rare noble metals in a strong acid environment.

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 present invention discloses a highly selective acid-resistant polyamide nanofiltration membrane containing Tröger's base and a preparation method thereof. The method comprises: preparing a Tröger's base phenylenediamine monomer, dissolving the monomer together with polyethersulfone in a polar solvent to prepare a casting solution, and then coating the casting solution on a non-woven fabric to prepare a polyethersulfone support membrane with a surface rich in PDA-TB by non-solvent induced phase separation, and finally contacting with a polyacyl chloride solution by one side to perform a polymerization reaction to prepare a highly selective acid-resistant polyamide nanofiltration membrane containing Tröger's base. Compared with the conventional poly(piperazine-amide) nanofiltration membrane, the nanofiltration membrane of the present invention has greatly improved acid resistance and higher separation selectivity.

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.