736 results about "Betaine" patented technology

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 feed functional compound for improving salt-alkali stress resistance of macrobrachium rosenbergii and application of the feed functional compound, and belongs to the technical field of aquaculture. The feed functional compound for improving saline-alkaline stress resistance of macrobrachium rosenbergii provided by the invention comprises vitamin D3, betaine and sodium oleate. According to the invention, the absorption promotion effect of vitamin D3 on calcium and phosphorus ions is utilized, so that the ion metabolism disorder of macrobrachium rosenbergii under saline-alkali stress is improved; by utilizing the osmotic pressure regulation capability of betaine, osmotic pressure unbalance under saline-alkali stress is improved, and the energy consumption of osmotic regulation is reduced; the sodium oleate is used for improving energy supply, the membrane structure is adjusted to improve osmotic pressure adjusting capacity, and the three components act together to achieve the purpose of improving salt-alkali stress tolerance of macrobrachium rosenbergii.

The invention relates to a rapid detection kit for large yellow croaker pyramidal worm, and belongs to the field of pathogen biological diagnosis in aquaculture. The kit comprises a nucleic acid releasing agent and further comprises a primer and a probe which are used for detecting the large yellow croaker pyramidal worm. The kit comprises a nucleic acid releaser; the formula of the nucleic acid releasing agent comprises tris (hydroxymethyl) aminomethane hydrochloride with the final concentration of 100 mM, sodium chloride with the final concentration of 100 mM, sodium dodecyl sulfate with the final concentration of 1 wt%, sodium alpha-olefin sulfonate with the final concentration of 3 wt%, sodium lauroyl glutamate with the final concentration of 1.2 wt%, betaine with the final concentration of 1 wt% and water as a solvent. The sequences of the primer and the probe for detecting the Pseudosciaena crocea pyramidal are 5 '-TATGGGCAATTCTGAATCCT-3', 5 '-TCTTTTCTGATCCCTGAAT-3' and 5 '-FAM-GTCGGTGGAGTGATTTGTTTG-3'. The kit disclosed by the invention is simple to operate, provides a tool for diagnosis, prevalence monitoring, prevention and control of the Pseudosciaena crocea pyramidal, and has a very high application value.

The invention relates to a betaine phosphate-containing feed additive for improving net energy level and a preparation method and application thereof, and belongs to the technical field of feed additives, the preparation method comprises the following steps: preparing composite betaine phosphate, preparing composite zinc methionine, and mixing; the preparation of the composite betaine phosphate comprises the following steps: preparing a betaine phosphate crude product, preparing a composite silicon dioxide carrier, and crystallizing; the preparation of the compound zinc methionine comprises the following steps: preparing an activated silicon dioxide carrier, adsorbing starch and adsorbing the zinc methionine; in the step of mixing, the compound betaine phosphate and the compound zinc methionine are mixed and then stirred at room temperature, and the betaine phosphate-containing feed additive capable of improving the net energy level is obtained. The feed additive prepared by the invention has a strong effect of improving the net energy level of broiler chickens, is not easy to have the problems of bonding and clustering, and is good in storage resistance.

The invention relates to a crop drought-resistant agent, a method for improving crop drought resistance and / or promoting crop growth and development and application of the crop drought-resistant agent, and belongs to the technical field of agricultural production. The crop drought-resistant agent is prepared from the following components: arginine, chitosan, salicylic acid, diethyl aminoethyl hexanoate, betaine, brassinolide and water. The crop drought-resistant agent can promote normal growth and development of crops under drought conditions, improve plant biomass accumulation and cell antioxidant enzyme activity and reduce toxicity of ROS to the plants, so that adaptability, tolerance and resistance of the crops to drought stress are improved, and the crop drought-resistant agent has the advantages of being good in drought-resistant effect, high in stability and high in safety.

The invention discloses a salt-resistant foam scrubbing agent for oilfield exploitation and a preparation method thereof, and belongs to the technical field of foam scrubbing agent preparation. The salt-resistant foam scrubbing agent for oilfield exploitation is prepared from the following components in parts by weight: 15 to 25 parts of a main surfactant, 5 to 10 parts of cocamidopropyl betaine, 0.1 to 0.6 part of a cosurfactant, 1 to 4 parts of EDTA (Ethylene Diamine Tetraacetic Acid) disodium, 0.05 to 0.12 part of nano silicon dioxide and 3 to 6 parts of isopropanol. The foam scrubbing agent prepared by the invention has excellent salt resistance and stability.

The invention belongs to the field of composite ink coatings, and particularly discloses a high-thermal-conductivity and high-adhesiveness copper foil coating ink coating as well as a preparation method and application thereof. The ink coating is prepared from the following components in parts by weight: 15 to 25 parts of epoxy resin, 10 to 20 parts of polyurethane resin, 5 to 12 parts of modified cellulose, 30 to 45 parts of heat-conducting filler, 8 to 15 parts of aliphatic polyisocyanate curing agent, 20 to 35 parts of solvent, 2 to 5 parts of silane coupling agent and 0.5 to 3 parts of pigment. The modified cellulose is prepared by modifying halogen-free betaine hydroxide, and can cooperate with the double-resin matrix to enhance the interface bonding force and construct a three-dimensional heat-conducting network. After the surface of an electrolytic or rolled copper foil is coated with the ink coating, the heat conductivity coefficient of the coating is larger than 0.4 W / (m.K), the dyne value is larger than 38, the cross-cut test is larger than or equal to 4B, alcohol wiping resistance is achieved, falling is avoided, the color difference delta E is smaller than 1, and the ink coating is suitable for a high-frequency circuit substrate and a lithium battery current collector.

The present invention provides an organic phosphonic acid betaine and a preparation method thereof, specifically an ammonium phosphonic acid betaine containing a glycidyl group. The organic phosphonic acid betaine can be used as a functional monomer for free radical grafting modification of the surface of a polymer material such as polyolefin, or can be mixed with acrylate, acrylonitrile or other olefin monomers for copolymerization to prepare an amphoteric ionomer. The organic phosphonic acid betaine can also be used for ring-opening grafting modification of polymer materials such as starch, cellulose, polyurethane, and polyamide containing amino or hydroxyl groups in their structures. At the same time, the phosphonic acid betaine imparts functional effects such as zwitterionization, hydrophilicity, antibacterial properties, and antifouling properties to the obtained polymer material. The organic phosphonic acid betaine also has high chemical stability in acidic and alkaline water environments.

The invention discloses a thickening agent, a salt-resistant and high-temperature-resistant fracturing fluid prepared by using the thickening agent as well as a preparation method and application of the salt-resistant and high-temperature-resistant fracturing fluid, and belongs to the technical field of oil and gas development. The problems that in the current oil and gas reservoir exploitation process, the flow-back fluid utilization rate is low, and a thickening agent and fracturing fluid prepared from the thickening agent are high in thickening cost, poor in efficiency, insufficient in temperature resistance and salt resistance and the like are solved. The amphoteric polyacrylamide copolymer is synthesized by using acrylamide, diacetone acrylamide and alkyl sulfobetaine, the copolymer is used as a thickening agent and can be used for preparing the fracturing fluid together with the fracturing flow-back fluid containing high salt, and the fracturing fluid which is high in consistency, resistant to high temperature and salt and high in viscosity can be obtained under the low concentration of the obtained fracturing fluid. And better rheological property and sand-carrying effect are achieved. In addition, an anti-swelling agent can be added into the fracturing fluid to prevent clay from swelling. Meanwhile, an auxiliary surfactant can be added into the fracturing fluid, so that the dissolving speed of the fracturing fluid is adjusted, and the surface tension is reduced.

The invention relates to the technical field of rubber asphalt, in particular to a pavement rubber asphalt crack pouring adhesive and a preparation method thereof. The pavement rubber asphalt crack pouring adhesive is prepared from the following components in parts by mass: asphalt, rubber powder, a compatilizer, modified silicon dioxide, a silane coupling agent and an auxiliary agent, according to the pavement rubber asphalt crack pouring adhesive, asphalt, rubber powder and modified silicon dioxide are compounded; the preparation method comprises the following steps: treating nano silicon dioxide by adopting a KH570 silane coupling agent, introducing unsaturated double bonds into the nano silicon dioxide, then carrying out free radical polymerization on the nano silicon dioxide, alpha-octadecene and sulfobetaine methacrylate under the catalysis of BPO, and respectively introducing long-chain alkyl, sulfo and betaine groups into the modified nano silicon dioxide, so as to obtain the modified nano silicon dioxide. The interfacial compatibility among the components is improved, so that the high-temperature stability and the mechanical property of the crack pouring adhesive are improved.

The invention discloses a zwitter-ion modified acrylate dielectric elastomer film and a preparation method thereof. Zwitter-ions can be selected from sulfobetaine methacrylate (SBMA), carboxyl betaine methacrylate (CBMA), sulfobetaine acrylamide (SBAA) and the like. The acrylate monomer can be butyl acrylate (BA), dodecyl acrylate (LA), isoamyl acrylate (EHA) and the like. Zwitterions (special compounds which simultaneously carry equal positive and negative charges on the same molecule and are electrically neutral on the whole) are copolymerized into an acrylate dielectric elastomer through photo-initiated free radical polymerization reaction, zwitterionic clusters uniformly distributed in the dielectric elastomer can construct traps for capturing high-energy electrons, the leakage current of the material is reduced, and the dielectric property of the material is improved. And the intrinsic breakdown field strength of the material is improved. In addition, the mutual attraction effect between dipole ions with positive and negative charges in the structure provides driving force for intrinsic self-repairing. And after being electrically and mechanically damaged, the material can be self-recovered, so that the service life of the material is prolonged.

The invention provides a betaine succinate eutectic crystal as well as a preparation method and application thereof, and belongs to the technical field of eutectic crystal manufacturing. The structural formula of the succinic acid betaine eutectic crystal is shown as a formula I, the molecular formula of the succinic acid betaine eutectic crystal is C28H56N4O16, in the succinic acid betaine eutectic crystal, the molar ratio of succinic acid to betaine is 1: 2, and the succinic acid betaine eutectic crystal has low irritation and excellent effects.

The metabolic marker can be used for early diagnosis of heart failure, has the advantages of high sensitivity, rapidness, convenience and accurate and reliable result, provides a basis for clinical decision, provides a certain basis for subsequent fundamental research and clinical research, and has potential application and research values. The metabolic marker comprises one or more of 1-(4-nitrophenyl) piperidine, sphingolipid d19: 3 / 23: 0, phosphatidyl ethanolamine 16: 1e / 22: 5, phosphatidyl ethanolamine 16: 1e / 22: 6, sphingolipid d14: 0 / 22: 1, 3-phosphoglyceric acid, phosphatidylcholine 15: 0 / 20: 4, phosphatidylcholine o-16: 1 / 18: 0, phosphatidylcholine 14: 0e / 20: 1, phosphatidylcholine 17: 0 / 18: 5, betaine, phosphatidylcholine 15: 0 / 18: 2 and phosphatidylcholine 18: 5e / 20: 4.

The invention discloses a fracturing imbibition system for refracturing a low-permeability tight oil reservoir and a preparation method of the fracturing imbibition system, and belongs to the technical field of fracturing fluids, the fracturing imbibition system comprises: an acid liquid base fluid: hydrochloric acid, hydrofluoric acid, EDTMPS and deionized water; an amphoteric betaine viscoelastic surfactant; biologically modifying the nanoparticles; a Gemini cationic surface active agent; a corrosion inhibitor; and an organic silicon defoaming agent and a fluorocarbon discharge aiding agent. According to the fracturing imbibition system, through the integrated design of the multifunctional surfactant, the problems that a traditional acid fracturing fluid is insufficient in silicate mineral dissolving capacity, high-temperature viscosity is attenuated, and corrosion inhibitor dependence is caused are solved.

The invention relates to the technical field of fractionation of lignocellulose biomass, and discloses a method for fractionating lignocellulose biomass by using a eutectic solvent, which comprises the following steps: mixing betaine and malic acid, stirring, and cooling to room temperature after the reaction is finished to obtain a clear and transparent eutectic solvent; the method comprises the following steps: mixing crushed lignocellulose biomass with a deep-eutectic solvent, and putting the mixture into a high-pressure reaction kettle; acetone and n-butyl alcohol are mixed according to the volume ratio of 3: 2-4: 1, and an anti-solvent is prepared; the method comprises the following steps: slowly adding an anti-solvent into a mixture of the lignocellulose biomass and the eutectic solvent, carrying out ultrasonic treatment, and then carrying out suction filtration. The glass electrode pH meter is used for measuring the pH value of the recovered deep-eutectic solvent, and the newly prepared deep-eutectic solvent is added according to the pH value, so that the stability of the solvent performance can be effectively maintained, the deep-eutectic solvent always keeps a good fractionation effect in multiple times of recycling, the utilization rate of the solvent is greatly improved, and the production cost is reduced.

The invention relates to the technical field of ore flotation, and discloses a preparation process of a foaming agent. The foaming agent is obtained by mixing fluorine-containing pyridine modified carboxyl betaine, sulfonic group modified polyoxyethylene ether and methyl isobutyl carbinol. Fluorine atoms can enhance the stability of the foaming agent and improve the flotation effect; sulfur atoms and metal ions form a stable chelate, and mineral separation and purification are achieved; pyridyl can generate electrostatic attraction with the surface of the mineral to form a hydrophobic membrane, so that the adhesive force of bubbles and the mineral is improved, and the flotation effect is enhanced; polar groups in the carboxyl betaine are adsorbed on the surfaces of the minerals, and non-polar groups face outwards, so that the surfaces of the minerals are hydrophobic, and a flotation effect is achieved; sulfonic groups can be adsorbed on the surfaces of minerals, so that the original hydrophilic surfaces of the minerals are changed into hydrophobic surfaces, and the floatability of the minerals is improved; the polyoxyethylene ether has good dispersing performance, so that the foaming agent is more uniformly distributed in ore pulp, and minerals can be better captured by bubbles and float upwards.

The invention discloses a high-reflection magnesium phosphate / aluminum phosphate radiation refrigeration material and a preparation method thereof, and relates to the technical field of radiation refrigeration materials. The preparation method of the high-reflection magnesium phosphate / aluminum phosphate radiation refrigeration material comprises the following steps: (1) mixing aluminum sec-butoxide and deionized water to prepare a solution A; mgCl2. 6H2O and deionized water are mixed to prepare a solution B; mixing the solution A and the solution B to obtain a solution C; (2) adding 3-sulfopropyl tetradecyl dimethyl betaine into the solution C to obtain a solution D; (3) stirring sodium pyrophosphate and deionized water into a solution E; mixing the solution E and the solution D to obtain a solution F; and (4) reacting the solution F at 150-180 DEG C, cooling, freeze-drying and grinding to obtain H, heating H to 300-400 DEG C at the rate of 3-4 DEG C / min, then heating H to 800-1300 DEG C at the rate of 7-10 DEG C / min, and keeping the temperature for 1-3 hours to obtain the product. The material prepared by the invention has excellent sunlight reflectivity and excellent mid-infrared emissivity, and shows excellent performance in the field of radiation refrigeration.

The invention relates to a condensate-oil-resistant and temperature-resistant foam scrubbing agent for deep coal bed gas exploitation and a preparation method of the condensate-oil-resistant and temperature-resistant foam scrubbing agent. The method comprises the following steps: (1) mixing 45-55 parts of sodium 3-chloro-2-hydroxypropanesulfonate and 14-28 parts of lauryl sodium sulfate, dissolving in an aqueous solution containing a special additive, adding 70-110 parts of aliphatic tertiary amine, heating to dissolve the aliphatic tertiary amine, adding the mixed solution into a three-neck flask, adjusting the pH value, heating, adjusting the pH value once every 25-35 minutes, reacting at 70-90 DEG C for 6-8 hours, and cooling to obtain a reaction solution; obtaining a yellow viscous product, namely the long-chain fat hydroxypropyl sulfonated betaine; and (2) adding 5-10 parts of a mixture of polyacrylamide and cellulose and 1-8 parts of nanoparticles into 80-150 parts of a product obtained in the step (1) to obtain the condensate oil-resistant temperature-resistant foam scrubbing agent. The lowest surface tension of the foam scrubbing agent can reach 28.12 mN / m, the foam scrubbing agent is high in foaming capacity, the foam height in clear water can reach 980 mL, the half-life period in high condensate oil content can reach 350 s, the condensate oil content reaches 35%, the foam height can still reach 750 mL, and the liquid carrying rate can reach 83.2%.

The invention discloses an asiatic acid elastic self-adaptive liposome as well as a preparation method and application thereof. The betaine and the lipidosome are utilized to synergistically improve the membrane stability, permeability and binding capacity of the lipidosome, the asiatic acid lipidosome synthesized by the asiatic acid instead of cholesterol is used as a delivery carrier of the exosome to improve the skin microenvironment and increase the effective utilization rate, and the Tween 80 is utilized to reduce the membrane surface tension of the lipidosome. Meanwhile, sodium deoxycholate is adopted to enhance the electrostatic interaction between the liposome and the skin, so that the liposome can generate reversible shape change when exposed to external stimulation, and the transdermal efficiency and the stability of the liposome are improved again while certain self-adaption is achieved. Finally, a lipid nano-carrier capable of realizing exosome non-invasive efficient transdermal delivery, remodeling a skin microenvironment and treating skin related diseases is constructed. A new thought is provided for transdermal delivery and clinical application of the exosome.

The invention relates to the technical field of ceramics, and discloses a ceramic nozzle material and a preparation method, the ceramic nozzle material comprises 100 parts by weight of alumina, 2-6 parts by weight of a betaine dispersant, and 0.3-2 parts by weight of graphene oxide. The side chain of the betaine dispersing agent contains sulfonic acid quaternary ammonium salt zwitterionic groups, sulfonate can interact with the surface of aluminum oxide, agglomeration of aluminum oxide is reduced, hydroxyl contained in the dispersing agent and the surface of graphene oxide form hydrogen bonding force, and the interface bonding performance of graphene and aluminum oxide is improved. The phase separation defect between graphene and aluminum oxide can be reduced, so that the relative density of the ceramic material is improved, the ceramic material has higher bending strength, the wear rate is obviously reduced, and the wear resistance is better.

The invention relates to the technical field of cleaning agents, and particularly discloses a composite cleaning agent as well as a preparation method and application thereof. The composite cleaning agent comprises the following raw material components in percentage by mass: 5%-10% of inorganic particles, 5%-15% of a surfactant, 15%-30% of a cleaning aid and the balance of water, wherein the surface active agent is prepared from rhamnolipid, fatty acid methyl ester ethoxylate, cocamidopropyl betaine and sophorolipid; the inorganic particles comprise soluble sodium salt and nano silicon dioxide; the cleaning auxiliary agent comprises a geranium extracting solution, a herba portulacae extracting solution, lauric acid and glycerol. The composite cleaning agent is simple in raw material components, simple and convenient in preparation method, low in cost and free of secondary pollution to the environment. The composite cleaning agent effectively solves the problems that an existing train cleaning agent is poor in cleaning effect, complex in manufacturing process and unfriendly to the environment.

The invention provides a dihydroquercetin betaine eutectic crystal and a preparation method and application thereof, the structural formula of the dihydroquercetin betaine eutectic crystal is as shown in formula I. The dihydroquercetin betaine eutectic crystal has excellent oxidation resistance and water solubility.

The present application provides the use of betaine in preventing the occurrence of autism spectrum disorder (ASD). Specifically, the present application provides the use of betaine or a pharmaceutically acceptable salt, stereoisomer, tautomer, nitroxide, solvate, metabolite or prodrug thereof in the preparation of a medicament for preventing the occurrence of ASD, optimizing fetal neural development or reducing the risk of fetal neural development disorder. By using betaine or a pharmaceutically acceptable salt, stereoisomer, tautomer, nitroxide, solvate, metabolite or prodrug thereof as an active ingredient, the occurrence of ASD can be effectively prevented, fetal neural development can be optimized, or the risk of fetal neural development disorder can be reduced.

The invention relates to the technical field of microbial fermentation, in particular to a fermentation medium for producing oxytetracycline. According to the fermentation culture medium, a corn starch-molasses-wheat hydrolyzed sugar composite carbon source, a soybean cake powder-corn steep liquor-yeast extract composite nitrogen source and a choline chloride-betaine-L-lysine precursor accelerant in a specific proportion are used as a core innovative system, and a form regulating agent, a defoaming agent and inorganic salt are cooperatively added. Through the synergistic effect of multiple components, the fermentation titer and yield of oxytetracycline are remarkably improved, the fermentation period is shortened, the generation of heteroacid is effectively inhibited, the mycelium form is optimized, and the oxytetracycline fermentation medium is suitable for industrial large-scale production of oxytetracycline.

The invention provides a preparation method and application of an anti-caking agent for betaine, and the preparation method comprises the following steps: step 1, uniformly mixing metered calcium silicate, stearic acid and water to obtain a first treated substance; step 2, performing ball milling on the first treated object in a ball mill to obtain a second treated object; and 3, carrying out suction filtration on the second treated substance, and drying to obtain the target anti-caking agent. The calcium silicate and the stearic acid are compounded, so that the porous structure of the calcium silicate preferentially adsorbs environmental moisture and reduces water films on the surfaces of betaine particles, the hydrophobicity of the stearic acid forms a hydrophobic layer through coating and chemical reaction, the moisture is further isolated, adhesion among the particles is reduced, and the caking rate of the betaine is reduced. Low-cost raw materials such as calcium silicate and stearic acid are used, and simple process steps such as mixing, ball milling, suction filtration and drying are adopted in the preparation process, so that the preparation cost of the anti-caking agent is reduced while the preparation process is simplified. In addition, the whole preparation process is environment-friendly, less in wastewater discharge and free of waste residue discharge.

The invention relates to an on-site synchronous quantitative determination method for three pathogenic bacteria in marine sediments, and belongs to the technical field of pathogenic bacteria detection.The three pathogenic bacteria are vibrio parahaemolyticus, vibrio alginolyticus and escherichia coli O157, and the method comprises the steps that marine sediment samples are collected and put into a centrifugal tube filled with sterile seawater, and are evenly mixed and centrifuged; taking the supernate as a template for LAMP amplification, respectively adding the supernate into detection tubes of an LAMP reaction system preloaded with the three pathogenic bacteria, and sealing. Placing the detection tube into a detection channel of a portable electronic isothermal gene amplification instrument, and determining a delta C4-t curve, a dv / dt-t curve and Tp; and after the determination is finished, substituting the Tp value into a working curve formula to calculate the content / concentration of the three pathogenic bacteria of the corresponding marine sediment sample in the detection tube. According to the method disclosed by the invention, Bst DNA polymerase and betaine are not needed in the reaction, so that the cost of LAMP analysis is reduced by at least 50%, the operation is simple and convenient, and simultaneous quantitative determination of the three pathogenic bacteria can be completed on site within 1h.

The invention relates to the technical field of blood purification materials, in particular to a zirconium-titanium bimetal MOF hollow microsphere adsorbent and a preparation method and application thereof. The adsorbent is based on a Zr / Ti bimetallic node and a phosphonic acid-carboxylic acid mixed ligand, a composite MOF hollow microsphere structure with high stability and high specific surface area is constructed through a solvothermal and polymerization synergistic reaction in a water-in-oil suspension system, a phosphonic acid group and Zr are strongly coordinated to improve the stability of a framework, and the composite MOF hollow microsphere structure has a high specific surface area. The carboxylic acid group keeps the hydrophilicity of the pore channel; meanwhile, a cross-linked network of acrylamide and N, N '-methylene bisacrylamide penetrates through crystal gaps in the balling process, so that the material has excellent mechanical strength and fluid stability; and a sulphobetaine amphoteric polymer brush layer is constructed on the surface of the MOF through endogenous initiation point modification and surface in-situ controllable free radical polymerization technologies, so that protein adsorption and platelet adhesion are effectively inhibited, the blood compatibility is remarkably improved, and meanwhile, the channel accessibility is maintained to promote rapid diffusion and adsorption of bilirubin.

The application discloses a kind of marine reinforced concrete crack fast self-repairing agent and preparation method thereof, the self-repairing agent includes the following components by mass fraction: polyacrylic acid hydrogel 20-30%, microorganism 5-10%, betaine 20-30%, calcium salt 15-25%, aluminum salt 20-30%.Its preparation method is: acrylic acid monomer is mixed with crosslinking agent, initiator, auxiliary crosslinking agent;Aluminum salt, acrylic acid are mixed to obtain aluminum acrylate;The two are mixed with microorganism and betaine, stirring and heating, and microorganism-polyacrylic acid hydrogel is prepared;After drying, it is broken, and calcium salt powder is wrapped, then immersed in polymer emulsion, dried, and prepared.The application can quickly block cracks by forming organic-inorganic composite repair products, solidify harmful media, release beneficial ions, achieve the dual goal of crack self-repairing and reinforcement corrosion inhibition.

The invention discloses a compound dispersing agent, a mixed electroplating solution and application, the compound dispersing agent comprises a first anionic surfactant, a second anionic surfactant and a nonionic surfactant, and the first anionic surfactant comprises a sulfonate compound; and / or the second anionic surfactant comprises one or more of betaine or carboxylate; and / or the nonionic surfactant comprises one or more of a naphthoquinone sulfonate formaldehyde condensation compound, a melamine-formaldehyde condensation compound and methylnaphthalene sulfonic acid formaldehyde condensation compound sodium salt. In the compound dispersant, the first anionic surfactant plays a role in surface wetting and dispersing, the second anionic surfactant plays a role in main dispersing, and the nonionic surfactant plays a role in surface active wetting, so that the compound dispersant disclosed by the invention has good synergism; the graphene dispersing agent plays a role in dispersing graphene in a plating solution system, plays a certain positive role in ion migration in the plating solution, and does not cause poisoning harm to the plating solution.

The invention relates to the technical field of muck modifying agents, in particular to a muck modifying agent based on shield construction and a construction method, and the muck modifying agent comprises the following raw materials: a composite foaming agent, modified bentonite, carboxymethyl cellulose and lignosulfonate. The composite foaming agent significantly reduces surface tension through betaine, and enhances the foam stability in combination with nano-silica, thereby improving the foaming efficiency; the nano silicon dioxide is embedded into a foam liquid film to form mechanical support, and the abelmoschus manihot gum delays liquid drainage through a thickening effect, prolongs the half-life period of foam and ensures continuous wetting of the muck. Bentonite is modified through acidification of oxalic acid, the interlayer spacing is enlarged, the water absorption capacity is improved, meanwhile, long-acting water locking is achieved through hydrophilic groups of lauryl sodium sulfate, and the residue soil humidity is maintained; anion modification of lauryl sodium sulfate enables the surface of bentonite to be negatively charged, the surface of bentonite and an anion modifier generate like-pole repulsion, the flocculation phenomenon is avoided, and therefore the uniformity of a system is improved.