624 results about "Sodium lignosulfonate" patented technology

The invention relates to the field of agricultural microbial preparations, in particular to a complex microbial inoculant sustained-release granule for preventing and treating sweet potato stem nematode disease and a preparation method of the complex microbial inoculant sustained-release granule. Comprising the following components in parts by weight: 15-25 parts of paecilomyces lilacinus viable bacterium powder, 10-20 parts of bacillus thuringiensis viable bacterium powder, 10-20 parts of streptomyces viable bacterium powder, 5-15 parts of bacillus subtilis viable bacterium powder, 15-25 parts of charcoal, 5-15 parts of sodium alginate, 5-15 parts of humic acid, 5-10 parts of chitosan, 3-8 parts of calcium silicate, 1-5 parts of mannitol and 1-5 parts of sodium lignin sulfonate. Four microorganisms with complementary functions, namely paecilomyces lilacinus, bacillus thuringiensis, streptomycete and bacillus subtilis, are adopted, the sweet potato stem nematode disease is synergistically controlled through multiple action mechanisms, and the control effect and the stability are remarkably improved.

The invention provides well killing fluid for preventing carbon dioxide gas channeling and a preparation method and application thereof, and relates to the technical field of oil and gas exploitation. The kill fluid for preventing carbon dioxide gas channeling comprises polyethylene glycol, sodium humate, sodium lignin sulfonate and paraformaldehyde, polyethylene glycol is used as a main raw material, sodium humate, sodium lignin sulfonate and paraformaldehyde are compounded, polyethylene glycol cannot be degraded after encountering carbon dioxide acid gas, and the carbon dioxide gas channeling is prevented. Paraformaldehyde plays a role of a cross-linking agent in a well killing fluid solution, other raw materials are cross-linked together to form gel with a net-shaped body structure, and the viscosity of the well killing fluid is increased to prevent gas channeling. The well killing fluid for preventing carbon dioxide gas channeling is not affected by acid-base gas and not limited by unbalanced formation pressure, and when the well killing fluid encounters carbon dioxide gas, carbon dioxide can be rapidly captured, reacts with other raw materials in the well killing fluid and blocks a gas channeling layer.

The invention relates to the technical field of material science and engineering, and discloses a nanocellulose-based oil-water separation and adsorption composite material, which is prepared from the following raw materials in parts by mass: 35 to 45 parts of nanocellulose; 8 to 11 parts of bagasse cellulose; 10 to 15 parts of sodium lignin sulfonate; 4 to 8 parts of chitosan; 5-10 parts of oxidized starch; 5 to 8 parts of cellulose nanowhiskers; 2-5 parts of silicon dioxide nanoparticles; 0.5 to 1 part of calcium carbonate nanoparticles; 1-2 parts of a citric acid cross-linking agent; 1-2 parts of graphene oxide; 0.3 to 0.6 part of ethylene diamine tetraacetic acid; 2-5 parts of glycerol; 0.4 to 1 part of stearoyl chloride; 2-4 parts of nano iron oxide; the preparation method comprises the following steps: pretreating the raw materials, mixing the pretreated raw materials into slurry, carrying out crosslinking and ultrasonic dispersion, standing to obtain a basic mixture, injecting the basic mixture into a mold, carrying out freeze drying to form a photocatalytic layer, carrying out centrifugal dewatering, carrying out chelation reaction, spraying a composite solution, and carrying out vacuum drying to obtain the photocatalytic material. The obtained composite material has the advantages of efficient adsorption capacity, good mechanical properties, environmental friendliness, degradability and low preparation cost.

The invention relates to the technical field of water treatment, and particularly provides a polyaluminum chloride composite water treatment agent and a preparation method thereof, and the polyaluminum chloride composite water treatment agent comprises the following components in percentage by weight: 80-90% of polyaluminum chloride; 0.5%-2% of modified chitosan; 3%-8% of sodium lignosulphonate-Fe < 3 + > complex; 0.1%-0.5% of a pH regulator; wherein the modified chitosan is citric acid cross-linked chitosan, the deacetylation degree of the modified chitosan is not lower than 85%, and in the sodium lignosulphonate-Fe < 3 + > complex, the molar ratio of Fe < 3 + > to sodium lignosulphonate is 1: 3. Through the synergistic interaction of polyaluminum chloride and a natural polymer composite system, the design of an efficient, green and multifunctional water treatment agent is realized.

The invention provides a high-flux chlorine-resistant anti-pollution composite nanofiltration membrane and a preparation method and application thereof, and the preparation method comprises the following steps: immersing a porous base membrane into a water-phase monomer solution, taking out the porous base membrane, removing a surface solution, and immersing the porous base membrane into an organic-phase monomer solution to complete interfacial polymerization to obtain an initial polyamide active layer; immersing the prepared initial polyamide active layer in a mixed solution containing sodium lignin sulfonate, a surfactant and a catalyst to complete surface modification; and carrying out thermocuring on the prepared surface-modified polyamide active layer to obtain the high-flux chlorine-resistant anti-pollution composite nanofiltration membrane. The anti-pollution performance and water flux of the prepared composite nanofiltration membrane are obviously improved, the composite nanofiltration membrane is suitable for being used as drinking water terminal treatment, and softening and purification of drinking water are achieved.

The invention provides loofah sponge nanocellulose hydrogel and a preparation method thereof.The preparation method comprises the following steps that anhydrous citric acid, choline chloride and water are mixed to react, and a ternary eutectic solvent is obtained; dispersing loofah sponge purified cellulose in a ternary eutectic solvent, washing and filtering a product to be neutral, dispersing the product in water, and performing ultrasonic treatment to obtain loofah sponge nanocellulose turbid liquid; dissolving sodium lignin sulfonate and lithium chloride in a sodium hydroxide solution to obtain a precursor solution; mixing the loofah sponge nanocellulose suspension with water, polyacrylamide, ammonium persulfate and N, N-methylene bisacrylamide, pouring the precursor solution into the loofah sponge nanocellulose suspension, uniformly stirring the mixture, pouring the mixture into a mold, and sealing the mold; and forming to obtain the loofah sponge nanocellulose hydrogel. The invention also provides an application of the hydrogel. The hydrogel disclosed by the invention has excellent biocompatibility, mechanical property and conductivity, has a wide application prospect in the field of flexible electronics, and is simple in preparation process, low in cost, green and environment-friendly.

The invention discloses high-specific-surface-area micro-mesoporous biomass porous carbon as well as a preparation method and application thereof. The method comprises the following steps: performing hydrothermal catalytic reaction on tobacco stems in an H2O2 solution to loosen a compact structure and increase oxygen-containing functional groups, fully mixing pretreated tobacco stem hydrothermal carbon and sodium lignin sulfonate in an aqueous solution in a solid-liquid form, adding glutaraldehyde to perform cross-linking reaction, and drying to obtain the tobacco stem hydrothermal carbon / sodium lignin sulfonate composite material. The preparation method comprises the following steps: preparing CaCO3 and tobacco stem into a composite biomass charcoal source with a stable three-dimensional network structure, preparing a composite biomass / CaCO3 precursor through an in-situ coprecipitation method, and finally carrying out high-temperature carbonization to obtain the tobacco stem / lignin composite porous carbon with a micro-mesoporous structure, a high specific surface area and a stable structure. The porous carbon material not only has abundant and mutually communicated hierarchical porous structures and high specific surface area, but also contains abundant active oxygen-containing functional groups, so that the surface characteristics of the porous carbon are improved, more adsorption sites can be provided, and the adsorption performance of the porous carbon material is greatly improved.

The invention relates to the technical field of collagen peptide extraction, and particularly discloses aquatic collagen tripeptide and a processing technology thereof, and the processing technology comprises the following steps: step S1, fish skin pretreatment; step S2, performing enzymolysis; step S3, fermentation; step S4, separation and purification; starting from three aspects, firstly, a modified degreasing agent is added in the degreasing treatment process, the modified degreasing agent takes 1-ethyl-3-methylimidazole acetate, zinc phytate and calcium citrate as main components according to a specific mass ratio, and secondly, gel emulsion is added in the enzymolysis process, so that the modified degreasing agent is prepared. The gel emulsion has an oil gel structure, grape seed oil and sodium lignin sulfonate, and 3, a composite strain is added in the fermentation process, the composite strain is prepared by mixing bacillus natto and lactobacillus plantarum according to a specific proportion, and the purity and the extraction rate of the aquatic collagen tripeptide are improved through the synergistic effect of all the procedures.

The invention relates to the technical field of temporary plugging agents, and discloses a water-soluble temporary plugging agent for oil well fracturing and a preparation method thereof. According to the prepared water-soluble temporary plugging agent, sodium lignin sulfonate / graphene oxide serves as a core, then the surface of the core layer is coated with a polyacrylic acid-polyacrylamide copolymer to form a first shell layer, and then the surface of the first shell layer is coated with acrylate modified chitosan to form a second shell layer; the temporary plugging agent is applied to oil well fracturing, not only has excellent plugging performance, dissolving performance and anti-shearing performance, but also can improve the transportation capacity of the temporary plugging agent in the oil well fracturing process.

The invention provides a solid waste-based cementing material and a preparation method thereof, and relates to the technical field of solid waste resource utilization and cementing material preparation. The cementing material is prepared by mixing and grinding 60-80 parts by weight of modified phosphogypsum and 20-40 parts by weight of an auxiliary material, and the auxiliary material comprises at least one of steel slag powder, fly ash, lithium slag and mineral slag; a preparation method of the modified ardealite comprises the following steps: carrying out microwave treatment on ardealite for 0.5-1 hour, mixing the treated ardealite with aluminum oxide, attapulgite and sodium lignosulphonate, adding a tetramethylammonium hydroxide solution, and drying to obtain the modified ardealite. According to the solid waste-based cementing material disclosed by the invention, the phosphogypsum is modified, so that the solid waste-based cementing material has the characteristics of high strength, stable cementing, strong erosion resistance and the like while the mixing amount of the phosphogypsum is increased.

The invention relates to the technical field of degradable materials, and discloses a water-soluble degradable fiber and a preparation method thereof. The water-soluble degradable fiber disclosed by the invention is prepared by taking polylactic acid as a main matrix, adding modified sodium lignin sulfonate, polyvinyl alcohol and polyethylene wax, blending, carrying out melt extrusion, and carrying out melt spinning. The fiber has water solubility, degradability, sand carrying performance and salt resistance, and has a good application prospect in a fracturing fluid used in a well drilling fracturing process based on the advantages of water solubility, degradability, sand carrying performance and salt resistance.

The invention discloses a lignin-based epoxy resin derived porous carbon composite electrode material and a preparation method and application thereof, and belongs to the technical field of electronic materials. Sodium lignin sulfonate, hydroquinone and epichlorohydrin are used as main raw materials, m-phenylenediamine is added for polycondensation to prepare a lignin-based epoxy resin polymer, then lignin-based epoxy resin derived porous carbon is obtained through pre-carbonization and high-temperature pyrolysis, finally, the porous carbon adsorbs aniline and then is subjected to in-situ polymerization, and the lignin-based epoxy resin derivative porous carbon is obtained. The lignin-based epoxy resin derivative porous carbon composite electrode material is obtained. The lignin-based epoxy resin derived porous carbon has a hierarchical pore structure, the specific surface area reaches 2287.87 m / g, and the mass specific capacitance of the polyaniline-introduced composite electrode material reaches 497.7 F / g. The composite electrode material has excellent electrochemical performance, the preparation process is safe and easy to implement, the cost is low, and the application prospect is wide.

The invention relates to the technical field of preparation of composite gel beads, in particular to slow-release-repair gel beads based on a lignin carbon-fulvic acid composite material as well as a preparation method and application of the slow-release-repair gel beads. Comprising the following steps: dispersing sodium lignin sulfonate carbon powder in a fulvic acid solution, and drying to obtain a lignin biochar-fulvic acid composite material; the preparation method comprises the following steps: by taking sodium alginate as a carrier, mixing the lignin charcoal-fulvic acid composite material, ammonium bicarbonate and the carrier, dropwise adding into a calcium ion-containing solution, crosslinking to form gel beads, and sequentially filtering, washing and freeze-drying to obtain the slow-release-repair gel beads based on the lignin charcoal-fulvic acid composite material. The slow-release-remediation gel bead based on the lignin carbon-fulvic acid composite material can remarkably improve the heavy metal adsorption and fixation efficiency, has the advantages of intelligent slow release in pH response and improvement of physical and chemical properties of soil, is stable in structure, environmentally friendly, high in adaptability, multiple in effect, low in cost and high in benefit, and overcomes the defects in the prior art.

The invention discloses a composite curcumin nano pesticide and a preparation method and application thereof.The nano pesticide comprises a carrier and curcumin loaded on the carrier, the carrier is polydopamine-sodium lignin sulfonate, and the polydopamine-sodium lignin sulfonate is formed by polymerizing dopamine hydrochloride on the surface of lignin; the preparation method comprises the following steps: preparing a curcumin solution, adding the polydopamine-sodium lignin sulfonate powder, fully dispersing, slowly stirring under a dark condition until a yellow solution becomes dark red, and removing a solvent to obtain the polydopamine-sodium lignin sulfonate-curcumin. The nano pesticide provided by the invention takes polydopamine-sodium lignin sulfonate as a carrier, so that the drug has pH and photo-thermal response controlled release function, burst release of curcumin is avoided, and the stability and bioavailability of curcumin are improved.

The invention relates to the technical field of lubricating oil, in particular to high-temperature-corrosion-resistant lubricating oil and a preparation method thereof. The high-temperature-corrosion-resistant lubricating oil is prepared from the following raw materials in parts by mass: 130 to 190 parts of base oil, 1 to 5 parts of an anti-wear reagent at extreme pressure, 1 to 5 parts of amino modified graphene, 0.1 to 1 part of an anti-rust agent, 1 to 3 parts of an antioxidant, 0.1 to 1 part of a de-foaming agent, 5 to 15 parts of trioctyl trimellitate, 1 to 5 parts of sodium lignin sulfonate and 1 to 5 parts of sodium bentonite. The high temperature resistance and the viscosity-temperature performance of the lubricating oil can meet the use requirements of a bearing under the working conditions of high speed, high temperature and large load, the wear resistance and the friction reduction of the lubricating oil at high temperature are effectively improved, and meanwhile the preparation method is simple and suitable for large-scale popularization and application.

The application relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material and a preparation method and application thereof. The high-strength asphalt-based pavement material comprises the following raw material components in mass fractions: waste rubber powder 60-80 parts, base asphalt 20-50 parts, sodium lignosulfonate modified petroleum resin 10-20 parts, deacidified waste oil 5-15 parts and solid filler 20-30 parts; wherein the raw material components of the solid filler comprise furan resin glass fiber reinforced material, cement kiln dust, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the application has excellent road performance, can maintain good stability at low temperatures, is not prone to cracking, the raw material components are cheap and easy to obtain, the preparation cost is low, and the treatment pressure of solid waste can be effectively relieved.

The present invention belongs to the technical field of oils for hydraulic supports and provides a biodegradable natural plant-extracted emulsified oil for hydraulic supports and a preparation method thereof. First, through multi-step chemical modification of palm oil, including epoxidation, boronation, phosphating, and block polymerization, the epoxidation reaction introduces epoxy groups, increasing the reactivity of the oil; the boronation and phosphating reactions further enhance the polarity of the oil and its ability to form a lubricating film; and through block polymerization with caprolactone, the stability and wear resistance of the lubricating film are enhanced. Second, through carboxymethylation of chitosan, the carboxyl groups in the carboxymethyl chitosan react with oxides on the metal surface to form a chemical passivation protective film; and the sulfonic acid groups in the sodium lignosulfonate bind to the metal surface through electrostatic adsorption, further forming a protective layer. The synergistic effect of the two forms a multi-layer dense protective film on the metal surface, significantly improving the anti-corrosion performance of the emulsified oil.

The invention provides a lime-sand polymerized building material for inhibiting saltpetering and a preparation method thereof, and belongs to the technical field of novel building materials, the material comprises a composite matrix material, a composite alkali activator, a slow-release organic acid microcapsule, a modified layered double-metal hydroxide and an saltpetering inhibiting auxiliary agent; the composite base material is formed by compounding fly ash and slag; the composite alkali activator is compounded by water glass and a NaOH aqueous solution; the slow-release organic acid microcapsule is prepared by coating a compound acid formed by mixing citric acid and tartaric acid with hydroxypropyl-beta-cyclodextrin and sodium alginate; the modified layered double hydroxide is prepared by calcining MgAl-LDH, then carrying out surface modification by a silane coupling agent, and then loading nano SiO2; the saltpetering inhibition auxiliary agent is compounded by phytic acid modified lignin microcapsules and thermal response carbonate; the phytic acid modified lignin microcapsule is prepared by modifying sodium lignin sulfonate with phytic acid and then coating with ethyl cellulose and polyvinyl alcohol; the thermal response carbonate is prepared by coating calcium carbonate with stearic acid.

The invention is applicable to the technical field of polymer biomedical hydrogel materials, and provides a preparation method and application of multifunctional agarose-based particle composite hydrogel based on liquid-liquid phase separation, and the agarose-based particle composite hydrogel is a product formed by introducing microsphere particles into an agarose hydrogel body matrix; the microsphere particles are formed by a prepolymer and sodium lignin sulfonate through phase separation mediated by a composite behavior based on non-covalent interaction; the prepolymer is obtained by carrying out amine-epoxy reaction on an amino compound and an epoxy compound in water. According to the prepared agarose-based particle composite hydrogel, a microsphere particle structure is formed on the surface of an agarose matrix while positively charged amino groups and sodium lignin sulfonate are introduced, so that the multifunctional agarose-based particle composite hydrogel is prepared.

The invention provides a method for preparing carbon fuel from corn straw based on a functional composite binder, and belongs to the technical field of biomass solid fuel preparation. The preparation method comprises the following steps: uniformly mixing corn stalk charcoal powder with a functional composite binder to obtain a mixture, and then carrying out hot-pressing activation molding to obtain the corn stalk charcoal fuel. The functional composite binder comprises the following raw materials: phosphoric acid, polysilicic acid, polyethylene and sodium lignin sulfonate; the addition amount of the functional composite binder in the corn stalk carbon powder is 10-15 wt.%. According to the method, the controllability of the quality of the raw material carbon is greatly improved, the functional composite binder is adopted, the forming density, falling and breaking resistance and durability of the carbon fuel are improved, the process stability and repeatability are high, and a foundation is laid for large-scale production.

The invention belongs to the technical field of water treatment, and particularly discloses a green scale inhibitor for barium sulfate and a preparation method thereof, the scale inhibitor is a product generated by esterification reaction of polysuccinimide and hydroxyethyl methylacrylate under alkaline conditions, and a copolymer formed by graft copolymerization of aconitic acid and sodium lignin sulfonate, wherein the mass ratio of polysuccinimide to hydroxyethyl methylacrylate to aconitic acid to sodium lignin sulfonate is 2: 4: (1-6): (1-4). The scale inhibitor is a composite copolymer formed by polymerizing and grafting a product obtained after esterification of polysuccinimide / hydroxyethyl methylacrylate, aconitic acid and sodium lignin sulfonate, has carboxyl, hydroxyl, amino, sulfonic acid and other groups at the same time, and can generate strong interaction with key ions or sites in the BaSO4 crystal growth process, so that the scale inhibitor can be used for inhibiting the growth of BaSO4 crystals. The normal growth and aggregation of BaSO4 crystals are prevented, so that the formation of BaSO4 scales is effectively inhibited.

The invention relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material as well as a preparation method and application thereof. The high-strength asphalt-based pavement material is prepared from the following raw material components in parts by mass: 60 to 80 parts of waste rubber powder, 20 to 50 parts of matrix asphalt, 10 to 20 parts of sodium lignin sulfonate modified petroleum resin, 5 to 15 parts of deacidified waste grease and 20 to 30 parts of solid filler, wherein the solid filler comprises the following raw material components: a furan resin glass fiber reinforced material, cement kiln ash, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the invention has excellent pavement performance, can keep good stability at low temperature, is not easy to crack, is low in raw material components and easy to obtain, is low in preparation cost, and can also effectively relieve the treatment pressure of solid wastes.

The application discloses a kind of super tough polyvinyl alcohol composite hydrogel with biological activity and preparation method thereof.The polyvinyl alcohol composite hydrogel refers to that polyvinyl alcohol (PVA) is added into NaOH solution, heated to 90 DEG C, and stirred vigorously for 2 hours, after PVA is completely dissolved, a certain proportion of sodium lignosulfonate (LS) and rutin (RT) powder is added, after sodium lignosulfonate and rutin are completely dissolved, it is air-dried into 0.3~0.5 mm thick film at room temperature, then it is immersed in 20~30 mL 10 wt% NaCl solution and swells for 3~5 hours, to obtain PVA-LS-RT composite hydrogel.The polyvinyl alcohol composite hydrogel prepared by the application has super strong mechanical property, and has higher antibacterial, antioxidant and wound healing capacity, and has good application prospect in wound dressing, artificial cartilage and flexible electronics and other cutting-edge fields.

The invention belongs to the technical field of solar cells, and particularly discloses a texturing additive, a texturing solution and a texturing method of a back contact cell. The texturing additive for the back contact battery comprises the following components in percentage by mass: 1.0%-5.0% of sodium carboxymethyl cellulose, 0.03%-0.2% of sodium lignin sulfonate, 0.003%-0.03% of paeoniflorin, 0.005%-0.05% of salvianolic acid B, 0.001%-0.01% of polyhexamethylene biguanide hydrochloride, 0.3%-1.0% of a buffering agent, 0.01%-0.1% of a surfactant and the balance of water. The components interact with each other, and the texturing additive is added into the texturing liquid to improve the flatness of the texturing surface and effectively solve the problem that the texturing surface is not fully distributed, so that the minority carrier lifetime and the open voltage of the back contact battery are improved, and the photoelectric conversion efficiency of the battery is improved.

The invention relates to the field of gel materials, and discloses biomass gel and a preparation method and application thereof.The method comprises the steps that 1, in an inert atmosphere 1, in the presence of a mixed solvent 1, polyether, 2-acrylamide-2-methylpropanesulfonic acid, dimethylaminoethyl methacrylate, divinylbenzene and an initiator are subjected to a polymerization reaction, and an intermediate is obtained; (2) in an inert atmosphere 2, in the presence of a mixed solvent 2, carrying out a cross-linking reaction on the intermediate, a biomass raw material and a trivalent iron salt to obtain biomass gel; the biomass raw material is selected from at least one of alkali lignin, dealkalized lignin, sodium lignin sulfonate, calcium lignin sulfonate, tannic acid, cellulose and inulin; by adopting the method disclosed by the invention, the biomass gel which is resistant to high temperature and salt and is not easy to dissociate can be prepared.

The invention discloses a sand casting water-based coating and a preparation method thereof, and relates to the technical field of casting coatings. The preparation method of the sand casting water-based coating comprises the following steps: firstly, adding the refractory aggregate, the composite suspending agent, the nano aluminum oxide and the sodium lignin sulfonate into water, and uniformly stirring to obtain a premix; and then adding sodium carboxymethyl cellulose into the premix, and continuously stirring to obtain the sand casting water-based paint. The coating prepared by the invention has good suspension performance and fire resistance.

The present invention relates to a method for preparing a high-strength flame-retardant cellulose film, comprising the following steps: (1) mixing a sodium lignin sulfonate aqueous solution and a polyamide epichlorohydrin crosslinker aqueous solution at a volume ratio of 1:1 to 1.5 to form a mixed solution A; (2) adding a cellulose aqueous dispersion and an ammonium polyphosphate aqueous solution with a polymerization degree of less than 20 to the mixed solution A of step (1), and stirring the mixed solution B sufficiently; (3) filtering the mixed solution B obtained in step (2) to form a film, and heating and drying the mixed solution to obtain a high-strength flame-retardant cellulose film. The preparation method of the present invention does not use an organic solvent, is green and environmentally friendly, and the obtained high-strength flame-retardant cellulose film not only has good flame retardant properties, but also has significantly improved mechanical properties, and has good application prospects.

The invention provides an additive for negative electrode lead paste of an ultralow-temperature lead storage battery, a preparation method of the negative electrode lead paste of the ultralow-temperature lead storage battery and the ultralow-temperature lead storage battery. The additive for the negative electrode lead paste of the ultralow-temperature lead storage battery comprises the following components in parts by mass: 4-5 parts of sodium lignosulfonate, 1-3 parts of L-cysteine, 1-2 parts of monopotassium phosphate, 2-3 parts of acetylene black, 0.5-1 part of graphene, 6-8 parts of barium sulfate, 1-2 parts of bismuth oxide and 1-1.5 parts of polyester staple fibers. According to the invention, L-cysteine and monopotassium phosphate which have a decisive effect on the realization of the ultralow-temperature capacity of an ultralow-temperature battery product are introduced, and the L-cysteine and the monopotassium phosphate are matched and cooperated to promote the realization of the ultralow-temperature charging and discharging capacity.

The invention relates to the technical field of discharge aiding agents, in particular to a composite synergistic discharge aiding agent and a preparation method thereof. The composite synergistic discharge aiding agent is prepared from the following raw materials in percentage by weight: 6-10% of dodecyl dimethyl benzyl ammonium chloride, 2-4% of enzymolysis sodium lignin sulfonate, 1-3% of diethylenetriamine, 0.4-1.2% of a first additive, 0.2-0.4% of a second additive, 0.1-0.3% of a protective agent, 0.1-0.3% of a regulator and the balance of water. According to the invention, after the sodium lignin sulfonate is subjected to directional enzymolysis treatment by cellulase, the density of a sulfonic acid group is increased, the effect of inhibiting particle aggregation can be achieved, and meanwhile, residual cellulose in a molecular chain can be degraded, the molecular weight is reduced, and exposure of the sulfonic acid group is increased, so that the water solubility and the dispersing capacity of the sodium lignin sulfonate are improved; solid particles in a stratum can be better dispersed, pore channels are prevented from being blocked, and the use performance of the cleanup additive is effectively improved.

The invention relates to the field of adsorption materials, in particular to a discrete carbon-based biological base material for targeted treatment of high-concentration organic wastewater and a preparation process thereof.The discrete carbon-based biological base material is prepared from, by weight, 65-70 parts of activated carbon fibers, 8-10 parts of PLA fibers, 5-7 parts of sodium lignin sulfonate, 5-8 parts of ferroferric oxide magnetic particles and 8-10 parts of a carbon nitride catalyst; biPO4 is doped in the carbon nitride catalyst. According to the discrete carbon-based biological base material, the activated carbon fibers rapidly adsorb organic matters in high-concentration wastewater, the PLA releases a carbon source and accelerates formation of a biological membrane, and the biological membrane is degraded by taking the adsorbed organic matters as a substrate; the carbon nitride catalyst generates active oxygen under visible light to oxidize small molecular acid, and ferroferric oxide magnetic particles catalyze the reaction to break refractory toxins (such as antibiotics); after the reaction, the magnetic field recovers the material, sodium lignin sulfonate protects ferroferric oxide magnetic particles from corrosion, and regeneration performance is provided.