4310 results about "Sulfonic acid" patented technology

Improved performance ion exchange membranes for use in REM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H2O2 diffusion; and / or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDI, the IEM is integrated into iBFC power blade and energy bank applications.

The invention provides a sulfamic acid continuous crystallization production device and process, the sulfamic acid continuous crystallization production device comprises a filter box and a production box, the production box is fixedly connected to the upper surface of the filter box through bolts, the top end of the production box is provided with a feeding pipe, the middle part of the interior of the production box is provided with a partition plate, and the middle part of the partition plate is provided with a conveying pipe; a discharging pipe, a production reaction module and a filtering and cleaning module are arranged between the production box and the filtering box. According to the sulfamic acid continuous crystallization production device and the sulfamic acid continuous crystallization production process, in the sulfamic acid continuous crystallization production process, when sulfamic acid crystals are filtered out from mother liquor through the filter cartridge, purified water is sprayed into the filter cartridge through the spray head; and the sulfamic acid crystals can be quickly and uniformly washed to remove impurities through the filter cartridge which continuously shakes in a reciprocating manner in the rotating process, so that the continuous crystallization production efficiency of the sulfamic acid can be effectively improved.

The invention discloses a wear-resistant and high-temperature-resistant synchronous belt and a preparation method thereof. The wear-resistant and high-temperature-resistant synchronous belt comprises a synchronous belt framework and a synchronous belt rubber sheet, the synchronous belt rubber sheet is prepared from the following raw materials: a fluorosilicone thermoplastic polyurethane elastomer containing a benzene ring structure, an amino-containing hyperbranched liquid crystal polymer, methyl vinyl phenyl silicone rubber, epoxidized natural rubber, molybdenum sulfide nanosheets, reinforced fibers, bis (1-vinyl imidazole-2-) ketone, 2-acrylamido-2-methylpropanesulfonic acid, 4, 4 '-difluoro-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1 The high-temperature-resistant rubber is prepared from 2, 6-hydroxy-2-cyanobenzothiazole, bis (3-aminophenyl) 3, 5-bis (trifluoromethyl) phenylphosphine oxide, a catalyst, a coupling agent, a vulcanizing agent, an anti-aging agent, a scorch retarder and a lubricating agent. The synchronous belt is good in mechanical property, sufficient in high-temperature resistance and cold resistance, good in wear resistance and excellent in aging resistance and flame retardance.

The invention discloses a self-crosslinking temperature-resistant salt-resistant emulsion type fracturing fluid thickening agent and a preparation method thereof, and belongs to the technical field of oilfield chemistry. The raw materials adopted by the invention comprise 30 to 50 parts of an oily solvent, 15 to 25 parts of deionized water, 10 to 20 parts of acrylamide, 5 to 10 parts of acrylic acid, 2 to 4 parts of 2-acrylamido-2-methylpropanesulfonic acid, 0.05 to 0.2 part of a crosslinking monomer, 0.5 to 1 part of a quaternary ammonium salt type hydrophobic association monomer, 4 to 8 parts of an emulsifier and 1 to 2 parts of a phase inversion agent. The self-crosslinking emulsion is formed through water phase-oil phase mixing, high-speed emulsification, low-temperature initiation polymerization and phase inversion treatment. Based on physical-chemical double-crosslinking temperature control cooperation, a salt-resistant-hydrophobic double-shielding mechanism and an integrated design without an exogenous crosslinking agent, the contradiction between the temperature-resistant and salt-resistant performance of a traditional thickening agent and the process complexity is broken through, and a technical support is provided for efficient development of high-temperature and high-salt oil and gas reservoirs.

The invention relates to a preparation method and application of an inner-rigid outer-soft core-shell structure silicon dioxide blocking agent for marine drilling fluid, and belongs to the field of deepwater oil and gas drilling. N-vinyl-2-pyrrolidone, dimethyl diallyl ammonium chloride, acrylamide and 2-acrylamide-2-methylpropanesulfonic acid are polymerized and grafted on the surface of nano silicon dioxide to form the silicon dioxide blocking agent with a core-shell structure and a rigid inside and a soft outside; by means of rigid plugging of a nano material and deformation filling flexible plugging of a high-molecular polymer, shale micro-nano pores are efficiently plugged with rigid inside and flexible outside, so that the stability of a well wall is maintained, meanwhile, secondary generation of hydrates is effectively inhibited, and the safety and efficiency of deepwater drilling are improved; the plugging agent provided by the invention reduces the demand on a large number of thermodynamic inhibitors, not only saves the cost, but also has the characteristic of environmental protection.

The invention relates to the technical field of environmental science, in particular to a box-type model-based inversion method for methane sulfonic acid particles in marine droplet aerosol, which comprises the following steps of: 1, acquiring satellite remote sensing data, ground observation data and laboratory simulation data, and carrying out data standardization processing; 2, dividing the target sea area into a plurality of sub-areas as independent box bodies; 3, calculating the discharge flux of the marine droplet aerosol based on the dimethyl sulfide concentration and the wind speed, and updating the spatial and temporal distribution of the discharge source; 4, embedding a chemical reaction path for oxidizing dimethyl sulfide on the surface of the aerosol into the box-type model to generate methanesulfonic acid, and introducing the specific surface area of the aerosol to correct the reaction rate; and step 5, outputting spatio-temporal distribution of the concentration of the methane sulfonic acid, and comparing measured data for verification. The accuracy of aerosol source item estimation is improved, the fusion efficiency of multi-source data is improved, and the adaptive capacity of the model in a complex environment is enhanced.

The present invention uses commercially available 3-aminopropylsilane coupling agent, diallylamino polyether acrylate, and an alkylating agent, or γ-propanesultone, or γ-butyrolactone as raw materials, and through an aza-Michael addition reaction and a quaternization reaction, a multifunctional silane coupling agent containing one or more quaternary ammonium cations, or sulfobetaine, or carboxybetaine in its molecular structure is prepared, which is used for the surface modification of bioactive glass, and the bioactivity, antibacterial and antifungal properties, and hydrophilicity enhancement effects after the surface modification of bioactive glass are obtained.

The invention discloses a method for extracting valuable metals from black powder of waste lithium ion batteries, and belongs to the technical field of recycling of waste lithium ion batteries. According to the method, valuable metals are extracted from the waste lithium ion battery black powder by adopting low-temperature roasting and water leaching, the waste lithium ion battery black powder is taken as a raw material, sulfamic acid is taken as a roasting agent, the waste lithium ion battery is pretreated, and roasting for carbon removal, metal extraction and water leaching are performed in sequence, so that the valuable metals are obtained. And leaching liquid and leaching residues containing two or more elements of lithium, nickel, cobalt, manganese, iron and aluminum are obtained and are used for further purification and recovery of valuable metals. According to the method provided by the invention, the influence of aluminum dissolution on recovery of other metals is reduced, the use of hydrogen peroxide is avoided, the process flow is shortened, the process cost is greatly reduced, the roasting and water leaching processes cannot corrode equipment, and the whole process cannot generate waste acid to cause secondary pollution.

The invention discloses a biochar-based slow-release fertilizer and a preparation method thereof, and relates to the technical field of fertilizer production, the biochar-based slow-release fertilizer comprises a core, a carrier layer, a biological layer and a protective layer, the core is composed of macroelements, microelements and a nitrification inhibitor; the carrier layer comprises graphene quantum dot modified charcoal, chitosan, glycerol and cyclodextrin grafted starch; the biological layer is prepared from magnetic Fe3O4 and humic acid nanoparticles, alginic acid oligosaccharide and diatomite; the protective layer comprises a polylactic acid-polycaprolactone block copolymer, acetone, calcium lignosulphonate, a dynamic covalent cross-linking agent gelatin, nano cellulose and an anti-blocking agent. Therefore, by adopting the polylactic acid-polycaprolactone (PLA-PCL)-based segmented copolymer and the dynamic covalent network cross-linking agent, the self-repairing property is endowed. The slow-release fertilizer provided by the invention realizes precise regulation and control of the fertilizer efficiency release rate through a multi-level synergistic effect, has the functions of soil remediation and stress resistance, and significantly improves the utilization efficiency of the fertilizer and the crop adaptability.

The invention relates to the technical field of plugging agents, and discloses a viscoelastic polymer type self-assembly plugging agent and a preparation method thereof. The preparation method comprises the following steps: adding acrylamide, butyl acrylate, 2-acrylamide-2-methylpropanesulfonic acid, quaternized cyclodextrin, gamma-glycidyl ether oxypropyl trimethoxy silane modified bentonite, Schiff base styrene, a sodium dodecyl benzene sulfonate emulsifier and octadecyl dimethyl allyl ammonium chloride into a reaction kettle; and adding an azodiisobutyronitrile initiator into the deionized water, uniformly mixing, and reacting for 4-5 hours at 50-65 DEG C to obtain the viscoelastic polymer type self-assembled plugging agent after the reaction is finished. The plugging agent disclosed by the invention has a relatively good plugging effect, and effectively solves the problem that the gel strength is weakened or the gelling is not thorough due to the formation shearing effect in a continuous gel migration process.

The invention relates to a preparation method of a high-hardness and high-sulfate-radical water quality scale inhibitor, and belongs to the technical field of water treatment.The preparation method comprises the steps that sodium carboxymethyl cellulose-sulfur quantum dots are prepared by using carboxymethyl cellulose as a stabilizer and then subjected to a copolymerization reaction with 2-acrylamido-2-methylpropanesulfonic acid and itaconic acid, and the high-hardness and high-sulfate-radical water quality scale inhibitor is obtained. The preparation method comprises the following steps: carrying out a reaction on sodium carboxymethyl cellulose and sulfur quantum dots to obtain modified sodium carboxymethyl cellulose-sulfur quantum dots, and carrying out a reaction on polysuccinimide, 4-amino phthalic acid and 2-aminoethanesulfonic acid to obtain a polyaspartic acid derivative; the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative are mixed to serve as the scale inhibitor, the scale inhibition rate of the scale inhibitor is remarkably increased through the synergistic effect of the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative, and meanwhile, due to the fact that a large number of new hydrogen bonds are generated between the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative, the scale inhibition rate of the scale inhibitor is increased. The stability of a polymer structure is improved, so that the temperature resistance of the scale inhibitor is improved. The scale inhibitor is green and environment-friendly, and has excellent scale inhibition efficiency on high-hardness and high-sulfate-radical water.

The invention provides a non-aqueous electrolyte, a lithium ion battery, a battery module, a battery pack and a power utilization device, the non-aqueous electrolyte comprises a lithium salt, an organic solvent and an electrolyte additive, and the electrolyte additive comprises 1, 3-propane sultone, fluoroethylene carbonate, vinylene carbonate, lithium tetrafluoroborate and a compound I shown in the formula I. The non-aqueous electrolyte is applied to the lithium ion battery, and the cycle life of the lithium ion battery is prolonged.

The invention discloses a microporous diaphragm for a low-electrical-impedance lithium battery and a preparation method of the microporous diaphragm. The diaphragm comprises: a base film layer, wherein the base film layer is of a microporous structure formed by biaxially stretching polypropylene and / or polyethylene; the surface of the base film layer is coated with the functional coating, and the functional coating contains mixed slurry of inorganic nanoparticles and a binder; the surface modification layer is formed by introducing a hydrophilic electrolyte group on the surface of the functional coating through plasma treatment or chemical grafting. The base membrane layer forms a uniform micropore structure through a two-way stretching process, the functional coating is formed by compounding nano silicon dioxide or aluminum oxide and polyvinylidene fluoride according to a specific proportion, a porous layer with gradient pore diameter is formed, the pore size of the porous layer is smaller than that of the base membrane layer, and efficient permeation of electrolyte is ensured. Electrolyte-philic groups such as sulfonic groups are introduced into the surface modification layer, so that the wettability of the diaphragm to an electrolyte is remarkably improved. During preparation, the base membrane is formed through melt blending, two-way stretching and pore-forming agent extraction, and then the functional layer is constructed through slurry coating and a low-temperature plasma treatment or sulfonation process. The diaphragm combines gradient aperture design, inorganic filler enhancement and surface chemical modification, and realizes low impedance, high thermal stability and excellent mechanical strength.

The invention provides application of poly-2-acrylamide-2-methylpropanesulfonic acid in removal of residual lithium on the surface of a high-nickel NCM ternary material, and relates to the technical field of surface treatment of the high-nickel NCM ternary material. The method aims at solving the problem that an existing method for removing lithium carbonate on the surface of an NCM material through high-temperature calcination or high-concentration ethyl alcohol soaking and cleaning has adverse effects on the structure and performance of the high-nickel NCM ternary material. According to the invention, the cleaning agent using poly-2-acrylamide-2-methylpropanesulfonic acid as a main component is provided for cleaning the residual lithium of the high-nickel NCM ternary material, and verification proves that the high-nickel NCM ternary material can be effectively prevented from being damaged by existing high-temperature calcination and high-concentration ethanol soaking and cleaning treatment, and meanwhile, the electrochemical performance of the high-nickel NCM ternary material is remarkably improved.

The invention belongs to the technical field of drilling fluid, and particularly relates to a free radical polymerization water-based drilling fluid composition and a preparation method thereof. The invention relates to a core-shell composite particle-containing water reducer which comprises deionized water, salts (NaCl / KCl), alkalis (Na2CO3 and NaOH), barium sulfate and core-shell composite particles X. The particle is composed of a silicon dioxide core and a polymer shell layer, and the shell layer is formed by free radical copolymerization of acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and acrylic acid and is covalently connected with the core through silanization treatment. Under the conditions of high salinity, strong alkali and high solid phase weighting, the drilling fluid simultaneously realizes the following effects: (1) high-density bearing and low-viscosity pumpability are realized; (2) compact plugging and water loss reduction and low formation damage flowback can be realized; and (3) stable rheology rock carrying, lubrication and friction resistance reduction. The problem that three aspects of performance are difficult to consider in the prior art is solved, and the drilling fluid is suitable for drilling of deep wells, ultra-deep wells and complex stratums and has remarkable industrial application value.

The invention relates to the technical field of purification of organic chemicals, in particular to an aroma purification method of leaf alcohol. Comprising the following steps: preparing a methanesulfonic acid magnetic catalyst; esterification of leaf alcohol; and alcoholysis and fractionation of the esterification solution. According to the method, acetic acid is used for esterification of leaf alcohol, then clear water and a sodium carbonate solution are used for washing, the clear water can effectively remove some water-soluble impurities and acidic byproducts, and the sodium carbonate solution not only can neutralize residual acidic substances, but also can promote siloxane impurities in initial leaf alcohol to be hydrolyzed and then taken away by a water phase, so that the content of the siloxane impurities in the leaf alcohol is reduced; in the subsequent process of producing leaf alcohol through alcoholysis of the organic phase I, pure water and ethanol, silyl ether impurities are hydrolyzed in a high-temperature and strong-alkali environment, products are dissolved in waste liquid to be removed, olefine aldehyde impurities with the boiling point lower than that of leaf alcohol are removed through azeotropic fractionation with ethanol, in conclusion, the impurities in the finished product leaf alcohol can be effectively reduced, and the yield of the finished product leaf alcohol is increased. And the prepared finished product leaf alcohol is high in purity and pure in fragrance.

The invention relates to the technical field of oil and gas field exploitation, and discloses a drag reducer for a multifunctional fracturing fluid and a preparation method thereof.The preparation method of the drag reducer for the multifunctional fracturing fluid comprises the steps that acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and modified itaconic acid are added into deionized water, stirring and mixing are conducted, and the drag reducer for the multifunctional fracturing fluid is obtained. Nitrogen is introduced for 30-40 min to remove oxygen, then azobis (isobutylamidine) hydrochloride is added, the mixture is stirred to react for 48-72 h at the temperature of 45-50 DEG C, and a polymer solution is obtained; and directly and uniformly mixing the polymer solution, the compatilizer and the modified nano silicon dioxide, and reacting in a magnetic stirrer at 60-70 DEG C for 1.5-2 hours to obtain the drag reducer for the multifunctional fracturing fluid. The drag reducer has a good drag reduction effect, and the hydrophobicity, the temperature resistance, the salt resistance and the shear resistance are improved.

The invention relates to the technical field of photoresist, in particular to a modification method suitable for photoresist. The photoresist is a positive photoresist and comprises phenolic polymer resin, a diazo naphthoquinone type photoinitiator, a solvent and an additive. According to the invention, a multi-carbon-based enol compound is used as a precursor to prepare a diazo naphthoquinone sulfonate type photosensitive compound, an aldehyde group carried in the diazo naphthoquinone sulfonate type photosensitive compound and an amine additive are used for grafting a photoinitiator-phenolic resin coupling product through a Schiff base reaction, and the dissolution inhibition effect of the photoinitiator-phenolic resin coupling product is adjusted; therefore, key characteristics such as resolution, etching resistance, edge roughness after exposure and development and the like of the photoresist are enhanced.

The invention discloses a solid electrolyte thin film and a preparation method thereof, and a lithium ion battery, the solid electrolyte thin film comprises a base film and a solid electrolyte material, a base film skeleton is used as a support, the solid electrolyte material is uniformly filled or permeated in pores of the base film, and a thin film with a reinforced concrete type structure is formed; the surface of the base membrane is modified by a functional reagent containing sulfonic groups or carboxyl groups; the thickness of the base membrane is 3-50 microns, and the porosity of the base membrane is 5-70%. According to the invention, the adjustable mechanical support capability (reinforcing steel bar) is provided for the electrolyte by using the base membrane framework, meanwhile, the high-performance composite solid electrolyte material (concrete) is uniformly filled in the base membrane pores to enhance the ionic conductivity, and the decoupling regulation and control of the ionic conductivity and the structural stability of the solid electrolyte film are realized by constructing the reinforced concrete structure.

The invention relates to the technical field of pesticide production, in particular to a synthesis method of 1-methyl-3-trifluoromethyl-4-chloromethyl-5-difluoromethoxy-1-H-pyrazole, which at least comprises the following steps: firstly, mixing trioxymethylene and 1-methyl-3-trifluoromethyl-5-difluoromethoxy-1-H-pyrazole to prepare a solution A; the solution A and chlorosulfonic acid are mixed and then subjected to a chloromethylation reaction, 1-methyl-3-trifluoromethyl-4-chloromethyl-5-difluoromethoxy-1-H-pyrazole is obtained through aftertreatment after sampling detection is qualified, and the method is high in product yield, high in purity, low in production cost, high in production efficiency, easy to operate, capable of meeting the green and environment-friendly requirements and suitable for industrial production. The industrial production is easy to realize.

The invention belongs to the technical field of fuel cells, and particularly relates to a preparation method of a dry-method membrane electrode and the prepared dry-method membrane electrode. The preparation method of the dry-method membrane electrode comprises the following steps: firstly, dispersing carbon carrier powder in water, and then adding a perfluorosulfonic acid resin solution to disperse again; drying the obtained dispersion system, adding platinum black powder, and grinding to obtain a powder mixture; and finally, electrostatically spraying the powder mixture on two sides of the proton exchange membrane, and carrying out hot rolling to obtain the proton exchange membrane. According to the manufacturing method of the dry-process membrane electrode, the swelling deformation of the membrane when the membrane encounters a solvent is effectively avoided; and agglomeration caused by hydrophilicity and high autohension of the perfluorosulfonic acid resin powder is effectively avoided, coating of the perfluorosulfonic acid resin on the catalyst is improved, proton conduction is effectively improved, and anode transmission resistance is reduced.

The invention provides a slow-release antibacterial enhanced composite film for fruit and vegetable preservation and a preparation method thereof, and the preparation method comprises the following steps: performing sulfonation modification treatment on nano cellulose powder to obtain sulfonated nano cellulose; carrying out quaternization modification treatment on the sulfonated nano-crystalline cellulose to obtain quaternary ammonium sulfonated nano-crystalline cellulose; adding gelatin and sodium carboxymethyl cellulose into deionized water to obtain a wall material solution, and adding curcumin into the wall material solution to obtain a prepolymer solution; stirring and emulsifying the prepolymer solution at a high speed to obtain a prepolymer suspension; adding a chitosan solution into the prepolymer suspension to obtain a microcapsule solution, adding tannic acid into the microcapsule solution to obtain a microcapsule suspension, and performing spray drying to obtain double-layer microcapsule powder; the preparation method comprises the following steps: uniformly mixing polylactic acid, quaternary ammonium sulfonated nanocellulose, the double-layer microcapsule powder, a plasticizer, a lubricant and an antioxidant to obtain a mixed material, and sequentially carrying out melt extrusion, cooling, pelletizing and film blowing.

The invention discloses an all-solid-state composite dry conductive agent and a preparation method thereof, and belongs to the technical field of batteries. The all-solid-state composite dry conductive agent is prepared by the following steps: uniformly mixing carbon nanotubes, high-dispersion carbon black and graphene to obtain a primary mixture; then preparing a uniformly dispersed glue solution from the composite dispersant and water; and then adding the primary mixture into the glue solution, uniformly mixing, sanding, homogenizing, drying and crushing to obtain the product, the high-dispersion carbon black is obtained by oxidizing carbon black to form active groups such as carboxyl and hydroxyl on the surface of the carbon black, halogenating acyl and then reacting with lithium 2, 5-diaminobenzene sulfonate. The preparation method comprises the following steps: grafting histidine ester into carboxymethyl cellulose by using propylene glycol diglycidyl ester as a cross-linking agent, then introducing allyl-1, 3-sultone, then copolymerizing with lithium 2-acrylamido-2-methylpropanesulfonate and 3-aminobenzoic acid allyl ester protected by fluorenylmethoxycarbonyl, and then deprotecting to obtain the composite dispersant.

The invention discloses a lithium battery negative electrode binder of modified carboxymethyl cellulose lithium, and belongs to the technical field of lithium ion batteries, and the modified carboxymethyl cellulose lithium is prepared by grafting carboxymethyl cellulose with an acrylic monomer and a sulfonic monomer, acidifying, lithiating, cross-linking with cystine, and carrying out surface modification with 2-(3, 4-dihydroxyphenyl) ethylamine. The preparation method comprises the following steps: grafting an acrylic monomer and a sulfonic monomer copolymerization long chain on a main chain of carboxymethyl cellulose, introducing additional carboxyl and sulfonic groups, and introducing cystine with a disulfide bond as a cross-linking agent and 2-(3, 4-dihydroxyphenyl) ethylamine with a catechol group as a tackifier to prepare modified carboxymethyl cellulose lithium; the lithium content of the obtained modified lithium carboxymethyl cellulose is higher than that of common lithium carboxymethyl cellulose, the adhesive property is enhanced, the toughness is improved, and the cycle performance is enhanced.

The invention discloses a high-sensitivity cardiac troponin-T electrochemiluminescence detection kit. The kit comprises a magnetic microsphere reagent coated by a high-sensitivity cardiac troponin-T capture antibody and a high-sensitivity cardiac troponin-T detection antibody reagent labeled by an electrically neutral ruthenium compound, the structural general formula of the electrically neutral ruthenium compound is # imgabs0 # n = 0-9; the magnetic microsphere reagent coated with the high-sensitivity cardiac troponin-T capture antibody comprises a magnetic microsphere coated with the high-sensitivity cardiac troponin-T capture antibody and a diluent; the electrically neutral ruthenium compound labeled high-sensitivity cardiac troponin-T detection antibody reagent comprises an electrically neutral ruthenium compound labeled high-sensitivity cardiac troponin-T detection antibody and a diluent; the diluent is prepared from piperazine-1, 4-diethyl sulfonic acid or 3-(N-morpholinyl)-2-hydroxy propanesulfonic acid. When the high-sensitivity cardiac troponin-T electrochemiluminescence detection kit is used for detection, a reaction system does not contain streptavidin coated magnetic beads or biotinylated antibodies, so that interference of biotin in a sample is avoided.

The invention provides a diaphragm and a preparation method thereof and a lithium ion battery, the diaphragm comprises a base membrane layer and a composite functional layer, the composite functional layer comprises hydrophobic SiO2 aerogel modified by a hydrophobic agent, a conductive ion polymer and a solid electrolyte, and the composite functional layer respectively accounts for 3-12wt%, 0.5-1.0 wt% and 0.5-1.5 wt% of the total mass of the diaphragm; the hydrophobic agent comprises trimethylchlorosilane, hexamethyldisilazane, perfluorooctyltriethoxysilane, polyvinylidene fluoride, polydimethylsiloxane and the like, the conductive ionic polymer comprises polyvinylpyrrolidone, lithium polymethacrylate, lithium polystyrene sulfonate, polyacrylamide and the like, and the solid electrolyte comprises lithium lanthanum titanium oxide, lithium lanthanum zirconium oxide, lithium lanthanum zirconium tantalum oxide and the like. The wettability is improved by the high porosity of the hydrophobic SiO2 aerogel, the stability and strong conductivity of a physical conductive network of the solid electrolyte and the ion affinity and amphoteric binding capacity of the conductive ion polymer are optimized, the electrochemical performance and thermal stability of the interface are optimized, and comprehensive optimization of the thermal-electric-interface performance of the diaphragm is realized through combination.

The invention relates to the technical field of battery binders, in particular to a water-based binder, a preparation method of the water-based binder and a carbon-coated aluminum foil. The water-based binder comprises a water-soluble monomer, an oil-soluble monomer, an amphiphilic monomer, a functional monomer, an initiator and a neutralizer, the amphiphilic monomer is prepared from at least one of sodium vinyl sulfonate, sodium p-styrenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid and N-vinyl pyrrolidone; the functional monomer comprises at least one of divinylbenzene, pyrrole, phenylacetylene and 3, 4-ethylenedioxythiophene. According to the water-based binder, the water-soluble monomer, the oil-soluble monomer, the amphiphilic monomer and the functional monomer are compounded in proportion, the conductivity of the binder, the wettability to a conductive carbon material and an aluminum foil, the adhesion to the aluminum foil and the like are improved, the prepared battery has excellent cycle stability, and the service life of the battery is prolonged.

The invention discloses a high-initial-efficiency fast-charge graphite composite material and a preparation method thereof, the composite material is of a core-shell structure, the core is graphite, and the shell is lithium sulfonate / lithium molybdate and an amorphous carbon coating layer thereof; the mass ratio of the shell is 5-15 wt% according to the mass ratio of the composite material being 100%. The preparation method comprises the following steps: adding a molybdenum compound into a solvent to prepare a solution, adding graphite oxide, an inorganic lithium salt and a carbon nanotube conductive solution, reacting for 2-12 hours at the temperature of 50-120 DEG C, filtering, carbonizing filter residues to obtain a lithium molybdate conductive agent coated graphite material, and depositing a lithium sulfonate derivative on the surface of the lithium molybdate conductive agent coated graphite material by an atomization method to obtain the lithium molybdate conductive agent coated graphite material. The electron and ion conductivity of the material can be improved, and the rate and the first efficiency of the material can be improved.

The invention relates to the technical field of petroleum drilling fluids, in particular to a preparation method of an anti-calcium tackifier, a brine-based drilling fluid and a preparation method. The preparation method of the anti-calcium tackifier comprises the following steps: A, uniformly mixing the white oil and the emulsifier to form an oil phase for later use; b, dissolving 2-acrylamido-2-methyl-1-propanesulfonic acid, acrylonitrile, a cationic monomer and a vinyl monomer with carboxyl in pure water, adjusting the pH value to 7.0, and uniformly stirring to form a water phase; c, dropwise adding the water phase in the step B into the oil phase in the step A, and uniformly mixing to obtain a stable inverse emulsion; and D, in a nitrogen atmosphere, adding an initiator into the stable inverse emulsion in the step C, and reacting to obtain the anti-calcium tackifier. The brine-based drilling fluid disclosed by the invention can keep good rheological property and stability in a high-temperature environment of 180 DEG C.

The invention discloses a liquefying agent, application thereof and a nucleic acid detection system, the liquefying agent comprises strong base, acetylcysteine and 2-(N-morpholine) ethanesulfonic acid; in the liquefying agent, the concentration of the strong base is 0.2 mol / L to 1 mol / L; the concentration of the acetylcysteine is 3 to 300 mmol / L; the concentration of the 2-(N-morpholine) ethanesulfonic acid ranges from 2 mmol / L to 5 mmol / L. Through the synergistic effect of the strong base, the acetylcysteine and the 2-(N-morpholine) ethanesulfonic acid, the liquefaction time can be remarkably shortened, the viscous biological sample treatment efficiency and speed can be improved, and the viscous biological sample treated by the liquefier can be directly used for nucleic acid amplification; and the viscous biological sample treated by the liquefying agent can be stored for a long time, the accuracy and reliability of nucleic acid detection are ensured by long-time stability, and the credibility of a detection result is improved.