70 results about "Calcium lignosulfonate" patented technology

The invention relates to the technical field of edible mushroom cultivation, in particular to a culture medium for cultivating stropharia rugoso-annulata and a preparation method and application thereof. The culture medium for cultivating the stropharia rugoso-annulata is prepared from the following components: rape straw, soybean meal, rice chaff, pepper straw, rice straw, loofah sponge, livestock and poultry manure, corncob, sawdust, calcium lignosulphonate and gypsum powder. The time from sowing to fruiting is 40-55 days by adopting the stropharia rugoso-annulata culture medium provided by the invention, and the fruiting time is obviously shortened compared with that of a contrast. By adopting the culture medium for cultivating the stropharia rugoso-annulata, the average yield of the stropharia rugoso-annulata reaches 8.15-8.64 kg / m < 2 >, and compared with a contrast, the average yield of the stropharia rugoso-annulata is remarkably improved. Therefore, the oilseed rape straw, the soybean meal, the rice chaff, the pepper straw, the rice straw, the loofah sponge and the calcium lignosulphonate are compounded, the fruiting time of the stropharia rugoso-annulata is shortened, and the yield of the stropharia rugoso-annulata is increased.

The invention provides a special seedling-stage fertilizer for improving crop drought resistance and promoting growth and a preparation method thereof, and belongs to the technical field of fertilizers. The special fertilizer for the seedling stage comprises the following components in parts by mass: 60-100 parts of a compound fertilizer, 5-15 parts of a water pteris vittata extract, 5-10 parts of a seaweed extract, 3-7 parts of a compound microbial agent, 2-6 parts of proline, 0.1-0.3 part of calcium lignosulphonate and 0.1-0.3 part of tetrasodium glutamate diacetate. The special fertilizer for the seedling stage is suitable for various crops such as corn, soybeans, wheat, flax and sorghum, and the drought resistance and the biological accumulation amount of crop seedlings can be remarkably improved. The invention provides a simple, convenient, economical and effective solution for drought-resistant cultivation of crops, and has a better market application prospect.

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 modified phenolic resin combined steel ladle brick and a preparation method thereof, and relates to the technical field of tundish refractory materials, the steel ladle brick comprises the following raw materials: 90-93 wt% of main aggregate, the main aggregate comprises fused magnesite, tabular corundum and recycled corundum, and the main aggregate comprises magnesium oxide, magnesium oxide and aluminum oxide; wherein the content of the fused magnesite is 75-85%, the content of the tabular corundum is 1-6%, the content of the recycled corundum is 5-9%, the content of the crystalline flake graphite is 8-10%, the content of the composite binding agent is 3-5%, the composite binding agent is composed of 80% of modified phenolic resin liquid and 20% of common phenolic resin, the antioxidant is 1-2%, the auxiliary binding agent is 1%, and the auxiliary binding agent is calcium lignosulphonate. By adopting the modified phenolic resin, adding the crystalline flake graphite, introducing the recycled corundum and mixing step by step, the oxidation resistance, the thermal shock stability, the erosion resistance and the high-temperature stability of the ladle brick are improved, the cost is reduced, and the service life is prolonged.

A self-cleaning fiber-reinforced inner hydrophobic anti-slip wear-resistant porous concrete pavement material belongs to the technical field of concrete. The self-cleaning fiber-reinforced inner hydrophobic anti-slip wear-resistant porous concrete pavement material is composed of Portland cement, modified waste tire rubber powder, modified lignin, modified polyvinyl alcohol fiber, fly ash, coarse aggregate gravel, graded coarse quartz sand, graded fine quartz sand, aluminum powder, quicklime powder, calcium polyacrylate, isopropylnaphthalenesulfonate, calcium lignosulfonate, polyether-modified heptamethyltrisiloxane, and water. The porous concrete pavement material obtained by the present invention has a compressive strength of 41.2 - 43.4 MPa, a flexural strength of 5.1 - 5.8 MPa, a contact angle of 116 - 124°, a water permeability coefficient of 7.7 - 8.2 mm / s, a 28-day wear amount of 0.34 - 0.42 kg / m 2 , the BPN value of the anti-slip performance is 68 - 72, and the maximum number of freeze-thaw cycles is 185 - 191 times.

The invention provides a low-thermal-conductivity refractory material and a preparation method thereof, and belongs to the technical field of refractory materials. The low-thermal-conductivity refractory material provided by the invention is prepared from the following raw materials in percentage by mass: 60-77% of magnesia, 20-37% of magnesium aluminate spinel, 2-3% of a binding agent and 0.1-0.2% of an additive, the additives are kaolin and quartz sand; the binding agent is one of a dextrin solution, a calcium lignosulphonate solution, a methyl cellulose solution and a sulfite paper pulp waste liquid; the mass ratio of the kaolin to the quartz sand is 1: (1-3). According to the invention, the kaolin and the quartz sand which are used as additives are preferentially melted during sintering, so that pores are formed in the sintering process, and the thermal conductivity of the refractory material is reduced; meanwhile, the addition amount of the additive is small, so that the strength of the refractory material is not influenced.

The invention discloses a compound high polymer soil stabilizer, and relates to the technical field of soil stabilizers. The concrete comprises the following raw materials: Portland cement, polyacrylamide, calcium chloride, calcium sulfate, sodium carbonate, calcium lignosulphonate, sodium lignosulphonate, a formaldehyde condensate of sulfonated acetone, polyvinyl butyral, 3-aminopropyltrialkoxysilane, modified water glass, polyvinylpyrrolidone, water and an expanding agent. According to the compound high polymer soil stabilizer, the water glass is modified, the aging speed of the water glass is delayed, the soil stabilizer can be stored for a long time, the modified water glass is longer in bonding time compared with common water glass, and the curing effect of the soil stabilizer is further improved; therefore, the compressive strength of the solidified soil is greatly improved.

The application relates to the field of agricultural planting cultivation technology and discloses a high-temperature-resistant and stress-resistant millet cultivation regulation method, which comprises the following steps: adding deionized water, boric acid and 1,2-propylene glycol into a reaction kettle, adding potassium hydroxide aqueous solution dropwise after heating and constant temperature to adjust pH value and react; cooling water is introduced to cool, calcium lignosulfonate is added to form a fluid system through high-shear dispersion; gamma-aminobutyric acid is added and stirred to obtain a high-temperature-resistant and stress-resistant foliar spraying composition product; the relative water content of soil is maintained before millet seeding to the jointing stage, and the composition product is diluted and uniformly sprayed on the millet leaves before continuous high temperature and low humidity drought weather predicted by the weather forecast. The boric acid is converted into an organic complex state, the water solubility and leaf absorption rate of the effective component are improved, the stomata are adjusted through gamma-aminobutyric acid, the calcium lignosulfonate is used to form a film on the leaves, and the damages caused by high temperature and drought to the plants are synergistically relieved.

The invention discloses a charcoal-based composite material as well as a preparation method and application thereof, and belongs to the technical field of soil improvement. The preparation method comprises the following steps: modifying rice straw with calcium lignosulphonate, carbonizing to obtain biochar, and co-fermenting with calcium lignosulphonate, rice straw, EM engineering bacteria and urea to obtain the biochar-based composite material. When in use, the charcoal-based composite material is uniformly spread on the surface of acidified soil, ploughing and mixing are performed, irrigation and mulching film covering are performed, and crops can be planted 30-120 days later. When the biochar-based composite material is used for soil improvement, the pH value of acidified soil can be remarkably increased, the non-uniform acidification characteristic of the soil is improved, the physical property and the soil fertility are improved, and the biochar-based composite material has the advantages of being low in remediation cost and free of chemical components and can provide technical support for guaranteeing cultivated land health and promoting ecological agriculture development.

This invention discloses an environmentally friendly multifunctional stainless steel cleaning agent and its preparation method, belonging to the technical field of stainless steel surface cleaning materials. The method involves grinding diatomaceous earth into powder, drying it, calcining it, cooling it, and then sieving it to obtain diatomaceous earth powder. The diatomaceous earth powder, a portion of water, polyacrylic acid, polyvinyl alcohol, polydimethylsiloxane, and silica are mixed and then ball-milled to obtain a ball mill slurry. The ball mill slurry, fatty amine polyoxyethylene ether, lauric acid diethanolamide, and glycolic acid are added to a reaction vessel, heated and stirred, and then cooled to obtain mixture A. Carboxymethyl cellulose, sodium tripolyphosphate, calcium lignosulfonate, glycerol phospholipids, and the remaining water are added to mixture A, heated and stirred, and then cooled to obtain the environmentally friendly multifunctional stainless steel cleaning agent. This cleaning agent is water-based and does not contain strong acids, strong alkalis, or other chemicals, avoiding secondary corrosion of stainless steel. The preparation method is simple and suitable for mass production.

The application discloses a kind of pH response perlite composite concrete and preparation method thereof, belong to building material field.Preparation the raw materials of the pH response perlite composite concrete include pH response perlite, cement, mineral powder, fine aggregate, coarse aggregate, fly ash, calcium lignosulfonate, the raw materials of preparation the pH response perlite include sodium alginate, methacrylic acid, sodium pyrophosphate, methyl methacrylamide, ammonium persulfate, TEMED, superfine calcium carbonate powder, perlite.The pH response perlite composite concrete prepared by the application not only can improve the compressive strength of concrete and thermal insulation performance, but also can prevent the wall made of perlite concrete from cracking and hollowing, improve the safety of building.

The invention discloses a preparation method and application of a functional degradable soybean oil-based bionic porous composite bone scaffold. The method comprises the following steps: taking epoxidized soybean oil acrylate as a bio-based base material, compounding isobornyl methacrylate to improve the defects of high viscosity and low photosensitivity of the bio-based base material, adding a photoinitiator containing ethyl 2, 4, 6-trimethylbenzoyl phenyl phosphonate and phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, compounding, and carrying out aging treatment to obtain base resin; mixing calcium lignosulphonate into the base resin to prepare composite photosensitive resin, and printing a triple-period extremely-small curved surface structure through a digital light processing technology and a 3D printing technology to finally obtain the functional degradable soybean oil-based bionic porous scaffold. The scaffold has calcium lignosulphonate-mediated controllable photo-thermal response behaviors of near-infrared light illumination regulation and bone scaffold component dependence under the condition of simulating the in-vivo environment of a human body, so that a controllable photo-thermal response-mediated remote shape memory function is realized, and meanwhile, a mild, safe and controllable photo-thermal curative effect can also be realized. Besides, calcium lignosulphonate promotes degradation of the composite scaffold by preferentially dissolving and generating a microporous structure on the surface of a matrix while improving the hydrophilic performance of the scaffold, and continuously releases calcium ions, so that the scaffold shows enhanced biomineralization ability and promotes cell proliferation and osteogenic differentiation. The research provides a solution with potential for the soybean oil-based biological photosensitive material in the digital light processing preparation technology and the multi-functional application of the bionic porous bone scaffold so as to deal with complex and irregular bone defects.

The invention relates to the technical field of filtrate reducers, in particular to a non-fluorescent anti-sloughing filtrate reducer for drilling fluid and a production process, and the non-fluorescent anti-sloughing filtrate reducer is prepared from the following raw materials in parts by weight: 80-100 parts of bentonite, 20-30 parts of an additive, 15-25 parts of a functional aid, 5-10 parts of calcium lignosulphonate, 8-15 parts of water-soluble phenolic resin, 30-50 parts of deionized water and 0.5-2 parts of an ultraviolet light absorber UV-320. The additive prepared from the first mixed powder, the second mixed powder and other components cooperates with the bentonite, the water-soluble phenolic resin and the calcium lignosulphonate to form a supporting and plugging integrated system, so that the filter loss is remarkably reduced, the borehole wall collapse is avoided, and the drilling construction safety is ensured.

The invention provides a composite microalgae preparation constructed for biological crust as well as a preparation method and application of the composite microalgae preparation, and relates to the technical field of biological soil crust repair. The composite microalgae preparation comprises chlorella with the number of FACHB-2900, chlamydomonas with the number of FACHB-1935, a sodium alginate aqueous solution and a calcium lignosulphonate aqueous solution, wherein the chlorella is purchased from a freshwater algae seed bank of Chinese Academy of Sciences. After the composite microalgae preparation is applied, the components of the sodium alginate and the calcium lignosulphonate immediately form a layer of viscous and hygroscopic liquid mulching film on the surface layer of soil, and the mulching film can be used for bonding soil particles, reducing raindrop impact and keeping moisture. In the protective layer, the fixed microalgae are activated by environmental moisture and illumination to restore activity, start to grow and perform photosynthesis, and quickly convert into a living and self-sustaining biological soil crust, so as to quickly protect and repair exposed soil.

The invention relates to a preparation method of a composite material for repairing the ecology of a high and steep slope of an abandoned mine, a composite material for improving the ecology of the high and steep slope of the abandoned mine repaired by dredged sludge, a method for improving the ecology of the high and steep slope of the abandoned mine repaired by dredged sludge and an evaluation method for ecological restoration of the high and steep slope of the abandoned mine. The preparation method of the composite material for repairing the ecology of the high and steep slope of the abandoned mine comprises the following steps: carrying out flocculating settling treatment on screened dredged sludge by utilizing chitosan and polyacrylamide; collecting pretreated sludge from the dredged sludge subjected to filter-press dehydration treatment; and mixing the pretreated sludge with calcium lignosulphonate, straw fibers, humic acid powder, a microbial agent and grass seeds, and uniformly stirring to form the composite material. By the adoption of the method, dredged sludge can be improved, the high and steep slope of the abandoned mine can be effectively repaired, the repairing effect is quantitatively evaluated, the scientificity and sustainability of repairing work are ensured, and green and sustainable development of the mine is promoted.

The invention discloses an additive for a cement mixing pile and the cement mixing pile applying the additive, and the additive for the cement mixing pile comprises the following components in parts by weight: 1 part of triethanolamine, 30-50 parts of sodium chloride, 3-8 parts of calcium lignosulphonate, 16-24 parts of an SMF superplasticizer, 16-24 parts of an FDN-30 superplasticizer, 100-140 parts of quick lime and 8-12 parts of water glass. Through the newly designed additive, the cement mixing pile has higher strength after being formed, so that the cement mixing pile is more suitable for coastal facies deposition plains with large soft soil layer thickness.

The application relates to the technical field of paint, in particular to a low-cost dry powder paint special for alcohol-based casting and a preparation method thereof, which comprises the following raw materials in parts by weight: 40-60 parts of mica powder, 20-40 parts of attapulgite, 10-20 parts of kaolin, 2-4 parts of polyvinyl butyral, 4-6 parts of powder, 6-10 parts of additives, and 4-6 parts of bauxite. In the application, solid waste red mud is used as a binder core base material, the surface inert oxide layer of the red mud is stripped through oxalic acid solution activation, the high-activity silicate-aluminate porous framework is exposed, the low-cost bonding system with a three-dimensional network structure is constructed through ball milling and calcium lignosulfonate / temperature-sensitive monomer composite modification, and the bonding durability is enhanced through the ion crosslinking effect of beta-hemihydrate gypsum and magnesium olivine in the mixture. The comprehensive performance of the dry powder paint is ensured, the solid waste replaces traditional high-price silica sol and resin and other raw materials, and the raw material cost is significantly reduced.

The present application relates to the field of fuel technology, disclose a kind of environmental protection type biomass fuel and preparation method thereof.The environmental protection type biomass fuel in the present application includes the following weight parts materials: sawdust 60-70 parts, activated biochar 25-35 parts, phosphoric acid activated red mud 15-20 parts, waste catering oil and fat 3-5 parts, calcium lignosulfonate 2-4 parts, cerium oxide 0.8-1.2 parts;Wherein, the activated biochar is prepared by using rice husk impregnated in ZnCl2 solution;The phosphoric acid activated red mud is prepared by using dried red mud into phosphoric acid solution.This environmental protection type biomass fuel and preparation method thereof provided by the present application improve the combustion characteristics of environmental protection type biomass fuel, improve the combustion efficiency.

Disclosed is a method for increasing an amount of air-quenched steel slag aggregate in concrete. The method includes the following steps: (1) weighing calcium lignosulfonate and silicon-containing powder, mixing same evenly to obtain a modifier, adding water to the modifier, and stirring same to dissolve, to obtain a modified slurry; (2) weighing air-quenched steel slag, pouring the modified slurry into the air-quenched steel slag, stirring same evenly, and placing same for drying to obtain modified air-quenched steel slag; and (3) mixing the modified air-quenched steel slag with stones, gravel, yellow sand and cement, adding water thereto, and stirring same evenly to obtain a mixture, molding the mixture to obtain a green body, and curing the green body.

The present invention relates to an entecavir liposome, a preparation thereof and a preparation method thereof, belonging to the technical field of antiviral drug preparations. The entecavir liposome of the present invention comprises entecavir, phosphatidylcholine, cholesterol, phosphatidylserine, and calcium lignosulfonate. The entecavir liposome of the present invention is obtained through film preparation, hydration, and liposome preparation. The present invention optimizes the formulation of the entecavir liposome, improves the stability of the entecavir liposome, enables the entecavir liposome to maintain the encapsulated state of the drug during storage and transportation, reduces the leakage of the drug, and thus improves the stability of the preparation.

The invention discloses a combined cultivation method for improving strawberry quality through cooperation of soil improvement and foliage spraying. The combined cultivation method comprises the following steps: S1, soil improvement: before field planting of strawberries, uniformly spreading a soil conditioner to a planting area; the soil conditioner is prepared from the following components in parts by mass: 2 to 10 parts of hydroxypropyl methyl cellulose, 20 to 40 parts of calcium lignosulphonate and 50 to 80 parts of humic acid; s2, foliage spraying: 30-3 days before strawberry picking, a combined nutrient solution is sprayed to the plants, and the combined nutrient solution comprises a magnesium sulfate solution and a citric acid solution. According to the method, soil improvement and foliage spraying are combined, so that the synergistic effect is achieved, the hardness, the solid-acid ratio and the soluble solid content of the strawberries are remarkably improved, and the flavor and the storage performance are optimized.

The invention provides a soil conditioner for relieving yellowing of edible lilies as well as a preparation method and application of the soil conditioner, and belongs to the technical field of soil improvement. The soil conditioner disclosed by the invention is prepared from the following raw materials in parts by mass: 70 to 85 parts of sulfur powder, 5 to 12 parts of sodium bentonite, 5 to 8 parts of fulvic acid, 3 to 5 parts of FeSO4.H2O, 1 to 3 parts of calcium lignosulphonate and 1 to 2 parts of an acrylic emulsion film-forming agent. During application, the fertilizer can be applied after being combined with dazomet film covering and fumigating, or applied in combination when base fertilizer is applied to lily in spring. According to the soil conditioner, the problem of lily continuous cropping yellowing is relieved from the source by adjusting the soil pH and activating microelements and soil microbial communities, growth is promoted, the yield and quality of edible lilies are improved, the raw materials are green and safe, and the soil conditioner is suitable for continuous cropping soil improvement in Lanzhou and other edible lily main producing areas.

The invention discloses a photo-thermal driving type water-electricity co-production composite material as well as a preparation method and application thereof. The composite material comprises a matrix formed by sodium alginate, calcium lignosulphonate and polypyrrole, and a network structure is formed through cross-linking reaction and directional freezing and used for loading lithium chloride. A calcium lignosulphonate cross-linked sodium alginate system improves the rigidity of the material, collapse of pore channels in the adsorption-desorption cycle process is avoided, rich aromatic rings and pi-pi conjugated structures cooperate with polypyrrole to perform photothermal conversion, and meanwhile, the surface activity of calcium lignosulphonate is beneficial to promoting uniform distribution of moisture, so that the photothermal conversion efficiency is improved. Therefore, the adsorption efficiency of the photo-thermal composite material is accelerated. The composite material has excellent moisture absorption performance in a wide relative humidity range, and water collection and power generation are realized at the same time. The method is wide in raw material source, low in cost and suitable for large-scale production. The composite material has a wide application prospect in atmospheric water collection, is especially suitable for drought, water-deficient and power-deficient areas, and shows high application potential.

The invention belongs to the technical field of stone cultural relic surface reinforcement, and particularly discloses a method for reinforcing red sandstone stone cultural relics in Sichuan and Chongqing regions based on soybean extracted urease induced mineralization, which comprises the following steps: S1, extraction of soybean urease: taking fresh soybeans, drying and crushing, adding deionized water, stirring, refrigerating, filtering, centrifuging, taking supernatant liquid, and drying to obtain soybean urease; obtaining a soybean urease solution; s2, preparing a cementing liquid: dissolving calcium lignosulphonate in deionized water, adding urea, and fully and uniformly stirring to obtain the cementing liquid; s3, preparing and using the repairing material: mixing the soybean urease solution and the cementing liquid, and applying the mixture to the surface of the cultural relic in batches by adopting a micro-mist spraying method. According to the method provided by the invention, calcium lignosulphonate is adopted to prepare the cementing liquid, the cementing liquid and the soybean urease solution jointly act on the rock surface to induce calcium carbonate deposition, a mineralization protection layer is formed, the weathering resistance is improved, the structure is reinforced, good water and air permeability is kept, and excessive mineralization is avoided.

The invention provides an additive for improving the activity of a concrete mineral admixture, and belongs to the technical field of concrete.The additive is prepared from flue gas desulfurization gypsum, sodium metaaluminate, ferric oxide, calcium hydroxide, sodium methyl silicate, magnesium fluosilicate, sodium fluosilicate, an iron-aluminum bimetallic complex, nano-silica, calcium lignosulphonate and the like as raw materials. The components are compounded according to a specific ratio for use, and the additive prepared by a special preparation method has a very good active synergistic effect, effectively improves the activity of the components such as the fly ash and the slag powder, improves indexes such as material workability and strength, and can support mixing of the components such as the fly ash and the slag powder in a large ratio to prepare a high-performance concrete material.

The present application relates to the field of gel material, disclose a kind of biomass gel and its preparation method and application, the method comprises: (1) in inert atmosphere 1, in the presence of mixed solvent 1, polyether, 2-acrylamide-2-methylpropane sulfonic acid, dimethylaminoethyl methacrylate, divinyl benzene and initiator are polymerized to obtain intermediate;(2) in inert atmosphere 2, in the presence of mixed solvent 2, the intermediate is crosslinked with biomass raw material, ferric salt, to obtain biomass gel;The biomass raw material is selected from at least one of alkali lignin, dealkalized lignin, sodium lignosulfonate, calcium lignosulfonate, tannic acid, cellulose and inulin;Using the method of the application, a kind of biomass gel resistant to high temperature, salt and not easy to dissociate can be prepared.

The invention relates to the technical field of ceramic products, and discloses a high-strength environment-friendly ceramic and a preparation method thereof.The preparation method comprises the steps that 70 wt% of pretreated kieselguhr, 15 wt% of bamboo charcoal powder, 8 wt% of pretreated nanometer titania, 4 wt% of pretreated calcium lignosulphonate, 2 wt% of pretreated nanometer cellulose and 1 wt% of pretreated lithium carbonate are added into water and stirred for 30 min at the rotating speed of 200 r / min, and a mixture is obtained; raw material agglomeration is inhibited through the dispersion effect of calcium lignosulphonate and the synergistic effect of nano raw material surface modification, and uniform slurry is formed; injecting the slurry into a mold, enhancing the solidification strength of the slurry by using the nanocellulose, and demolding after preliminary solidification to obtain a green body; the defects in the aspects of traditional ceramic preparation and performance are overcome.

The application discloses a quasi-two-dimensional red light perovskite LED device and a preparation method thereof, and belongs to the technical field of light emitting diodes, wherein the preparation method comprises the following steps: depositing a PEDOT:PSS aqueous solution on a substrate surface by a spin coating method, and performing a first annealing treatment; mixing TFB and PVK in a chlorobenzene solution, and depositing the mixture on the substrate surface after the first annealing treatment by a spin coating method, and performing a second annealing treatment; depositing a calcium lignosulfonate solution on the substrate surface after the second annealing treatment by a spin coating method; dissolving lead iodide, cesium iodide, zinc iodide, 3,3-diphenylpropylamine iodine, 1-naphthalene methylamine iodine and phenylethylamine iodine in an N,N-dimethylformamide solution to obtain a perovskite precursor solution; dropping the perovskite precursor solution on the substrate surface after the above treatment to prepare a thin film, and performing a third annealing treatment on the thin film; and evaporating an electron transport layer and a cathode electrode on the thin film to obtain the quasi-two-dimensional red light perovskite LED device. The quasi-two-dimensional red light perovskite LED device has a small turn-on voltage, high brightness and high external quantum efficiency.

The invention belongs to the technical field of dry paper pulp molding, and provides a glue solution for dry paper pulp molding and a preparation method of a paper fiber molding material. The glue solution for dry paper pulp molding is prepared from the following components in percentage by mass: 97.6 to 98.04 percent of a glue solution body, 0.98 to 1.2 percent of a wet strength agent and 0.98 to 1.2 percent of a dry strength agent, the solid content of the glue solution body is 51-55%; the glue solution body is one or more of a vinyl acetate-ethylene copolymer glue solution, a starch glue solution and a soybean protein glue solution; the wet strength agent is epoxy resin and / or polyamide-epichlorohydrin resin; the dry strength agent is calcium lignosulphonate and / or polyacrylamide. The glue solution for dry paper pulp molding can fully permeate into a fiber layer, so that the binding force between fibers is remarkably enhanced, the bursting resistance of a paper fiber molding material and the mechanical stability in a dry and wet environment are improved, and the application range of the paper fiber molding material is expanded.

The invention provides a biological fermentation organic base fertilizer taking complete soybeans as a raw material and a preparation method of the biological fermentation organic base fertilizer, and relates to the technical field of organic fertilizers. 5-10 parts of calcium powder or rice hull powder; 0.1-0.2 part of a microbial fermentation agent, wherein the microbial fermentation agent is prepared from bacillus subtilis, saccharomycetes, bacillus mucilaginosus and trichoderma viride; the functional additive is prepared from ground phosphate rock and calcium lignosulphonate according to the mass ratio of (1.5 to 2.5): 1. The problem of insufficient nutrient conversion of a traditional soybean organic fertilizer is effectively solved through a complete soybean and complex microbial inoculant synergistic fermentation technology, the bacillus subtilis in the complex microbial inoculant decomposes soybean protein into free amino acid, the bacillus mucilaginosus releases available phosphorus, the trichoderma viride decomposes cellulose, and the four types of bacteria cooperate with each other, so that the nutrient conversion efficiency is improved. The nutrient content and the conversion efficiency of the organic base fertilizer are effectively improved.