93 results about "Diethanolamide" patented technology

The invention belongs to the technical field of shield construction, and particularly relates to a nano-based shield muck improving foaming agent as well as a preparation method and application thereof. Specifically, in the field of shield tunneling foaming agents, nano silicon dioxide is innovatively adopted as a powerful foam stabilizer, the powerful foam stabilizer, hydroxypropyl methyl cellulose, polyvinyl alcohol and coconut oil diethanolamide jointly form a powerful foam stabilizing system, and dodecyl dimethyl amine oxide and sodium alpha-olefin sulfonate serve as auxiliary foaming components to expand environmental adaptability. And the muck improved foam with small volume, strong deformability and good stability is formed. Foam prepared by the foaming agent provided by the invention has the advantages of moderate foaming ratio, long half-life period, fine foam, small volume and the like, that is, the foaming agent can continuously and effectively play a role in improving the muck, and can effectively meet the requirements on the performance of the muck in the whole shield construction process, so that the foaming agent has good practical application value.

The invention relates to a high-performance concrete admixture composition for a wind power tower drum and a preparation method of the high-performance concrete admixture composition, and relates to the field of concrete admixtures. The water reducing agent is prepared from the following components in parts by weight: 35 to 45 parts of a shrinkage reducing type polycarboxylic acid water reducing agent, 8 to 12 parts of methoxy polyethylene glycol acrylate modified nano silicon dioxide, 1.5 to 2.5 parts of sodium dodecyl polyoxyethylene ether sulfonate, 0.8 to 1.5 parts of coconut oil diethanolamide, 0.3 to 0.8 part of sodium polyacrylate, 0.2 to 0.6 part of ammonium tripolyphosphate, 0.05 to 0.15 part of a polyether defoaming agent and 40 to 50 parts of water. According to the invention, the hydration process of the concrete is regulated and controlled through the synergistic interaction among various additives, the pore structure in the concrete is optimized, and an interface transition region is strengthened, so that the systematic improvement of the microstructure of the concrete is realized, and the strength and durability of the concrete are remarkably improved.

The invention belongs to the technical field of cleaning of poultry eggs, and discloses a special cleaning agent for poultry eggs as well as a preparation method and application thereof. The special cleaning agent for poultry eggs comprises the following components: linear alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether sodium sulfate, cocoanut fatty acid diethanolamide, sodium silicate, sodium tripolyphosphate, sodium carbonate, sodium chloride, sodium hypochlorite, a defoaming agent, an enzyme preparation and water. The cleaning agent is used for cleaning fresh poultry eggs, dirt on the surfaces of the poultry eggs can be rapidly removed, the dirt can be prevented from being adhered again, the sterilization rate on escherichia coli, staphylococcus aureus and salmonella reaches 95% or above, meanwhile, the influence on the strength of the poultry eggs can be reduced to the maximum extent, and the breakage rate of the poultry eggs is kept at the low level.

Rare earth extractant compounds having the following structure:wherein R1, R2, R3, and R4 are independently selected from alkyl groups containing 1-30 carbon atoms and optionally containing an ether or thioether linkage connecting between carbon atoms, provided that the total carbon atoms in R1, R2, R3, and R4 is at least 12; R5 and R6 are independently selected from hydrogen atom and alkyl groups containing 1-3 carbon atoms; and provided that at least one of the conditions (i)-(iv) apply as follows: presence of a distal branched group in at least one of R1-R4 (condition i), asymmetry in R1-R4 (condition ii), presence of amine-containing ring (condition iii), or presence of lactam ring (condition iv). Also described are hydrophobic water-insoluble solutions containing at least one extractant compound of Formula (1), as well as method for extracting rare earth elements from aqueous solution by contacting the aqueous solution with the water-insoluble solution.

The invention belongs to the technical field of lubricating oil manufacturing, and relates to composite lubricating oil used in an aluminum rolling process, which comprises the following components in parts by mass: 94-96 parts of base oil, 0.5-1.5 parts of an oiliness agent, 0.5-0.8 part of an extreme pressure anti-wear agent, 0.5-1.5 parts of a wear-resistant antioxidant, 0.5-2 parts of oleic acid diethanolamide and 0.5-1 part of an antirust agent. On the basis of the prior art, nano-sheet molybdenum disulfide is introduced and added into 2-aminoterephthalic acid and nickel nitrate to react to prepare a modified metal organic framework, then carnosic acid is grafted through an amide reaction to prepare the wear-resistant antioxidant, and a protective film can be formed on a friction interface through a sheet structure of molybdenum disulfide, so that the friction coefficient is reduced; the wear resistance is improved; a compact passive film is formed on the surface of aluminum metal through the synergistic effect of the extreme pressure anti-wear agent and the wear-resistant antioxidant, and the corrosion resistance and wear resistance of the composite lubricating oil used in aluminum plate rolling are improved.

The invention belongs to the technical field of washing products, and discloses a detergent containing natural plant extracts, comprising the following components in parts by weight: 3-6 parts of sodium sulfate of fatty alcohol polyoxyethylene ether, 1-3 parts of diethanolamide, 2-5 parts of sodium secondary alkyl sulfonate, 6-10 parts of isomeric alcohol ethers, 0.1-0.3 parts of sodium chloride, 0.2-0.5 parts of sodium hydroxide, 0.8-2 parts of allantoin, 55-70 parts of oregano hydrosol, and 15-20 parts of water. The detergent with oregano extract added in the invention is not only safe and harmless, has good decontamination ability, but also has excellent bactericidal effect, is mild and non-irritating, is suitable for skin contact, and has a certain skin care effect.

The application belongs to the technical field of materials, and discloses a special aluminum powder dispersing agent for aluminum foil rolling oil, which is composed of the following components and in the following proportions: base oil: 10-20 parts; surfactant: oleic acid diethanol amide: 40-60 parts; fatty amine polyoxyethylene ether: 10-30 parts; lubricating cleaner: dimer acid: 5-15 parts; and guerbet alcohol: 10-20 parts. The aluminum powder dispersing agent adopts oleic acid diethanol amide and T13 surfactant which have sufficient dispersion effect on aluminum powder, so as to reduce the pollution caused by aluminum powder accumulation after rolling of the aluminum foil; through introduction of the dimer acid and the guerbet alcohol, the lubricating performance of the rolling oil is improved, the oil amount on the surface of the aluminum foil after rolling is reduced, the surface cleanliness of the aluminum foil is improved, and thus the surface leakage coating condition of the aluminum foil is improved.

The invention relates to the technical field of colored ribbon spraying agents, in particular to a low-temperature-resistant environment-friendly colored ribbon spraying agent and a preparation method thereof. The invention relates to a low-temperature-resistant environment-friendly colored ribbon spray, which is prepared from 20 to 30 parts of deionized water, 0.2 to 0.4 part of preservative, 0 to 0.3 part of water-soluble pigment, 0.1 to 0.2 part of coconut oil diethanolamide, 0.1 to 0.2 part of perfluorooctyl quaternary ammonium iodide, 0.1 to 0.2 part of rhamnolipid, 0.1 to 0.2 part of sodium vinylsulfonate, 4 to 6 parts of ethanol, 15 to 25 parts of filling powder, 5 to 8 parts of acrylic resin, 5 to 7 parts of ethylene glycol monobutyl ether and 20 to 30 parts of propellant. The colored ribbon spraying agent successfully solves the problem that an existing colored ribbon spraying agent is instable in spraying under the low-temperature condition, and the excellent spraying effect is still kept in the cold environment.

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 present invention provides a dispersant, a suspension containing the same, a water-based drilling fluid and a water-based fracturing fluid. The dispersant comprises diethanolamide of linoleic acid, sodium dodecyl sulfate, isomeric tridecanol polyoxyethylene ether, triethylene glycol butyl ether, a tackifier and a solvent.

The invention relates to the field of daily chemical products, and particularly discloses an efficient detergent containing dodecylbenzene sulfonic acid and a preparation method of the efficient detergent. The efficient detergent containing dodecylbenzene sulfonic acid comprises the following raw materials in parts by weight: 5-8 parts of dodecylbenzene sulfonic acid; 4 to 7 parts of fatty alcohol-polyoxyethylene ether; 5 to 6 parts of alkyl dimethyl betaine; 3-8 parts of cocoanut fatty acid diethanolamide; 3-5 parts of hydrophobic modified adsorption filler; 3-6 parts of a chelating agent; 1-3 parts of a defoaming agent; 4 to 8 parts of carboxymethyl chitosan-polyethyleneimine hydrogel modified silica gel particles; 80 to 95 parts of water; the preparation method comprises the following steps: mixing the components according to the formula, and stirring to obtain the efficient detergent. The efficient detergent has the advantages that the stain removal capacity is high, stains cannot be secondarily deposited on clothes, and the antibacterial effect is achieved.

The invention relates to a polishing solution, a preparation method thereof and an aluminum alloy polishing method. The polishing solution comprises a lubricant, a corrosion inhibitor, an antirust agent and a solvent; wherein the lubricant comprises at least one of the following characteristics: (1) the lubricant comprises oleic acid diethanolamine molybdic acid; (2) the lubricant comprises an organic lubricant and an inorganic lubricant, the inorganic lubricant comprises inorganic molybdenum salt, and the organic lubricant comprises at least one of coconut oil diethanolamide, polyol ester and ricinoleate; the corrosion inhibitor comprises one of the following characteristics: (1) isomeric alcohol phosphate; and (2) at least one of phosphate ester, siloxane ketone, cyclocarboxypropyl oleic acid and polyoxyethylene oleate, and an anionic surfactant. The polishing solution can effectively prevent the phenomenon of poor brightness or burnishing caused by drying of a lubricating film due to friction heat in the polishing process, effectively reduces pinhole-shaped corrosion pits, and can effectively improve the polishing brightness at the same time.

The application provides a composition, a polyurethane foam material and a preparation method thereof and a refrigeration equipment, and the composition comprises a polyol component, a foaming agent, an auxiliary agent and an organic isocyanate, wherein the auxiliary agent comprises a catalyst, the polyol component comprises a bio-based fatty acid diethanolamide and a fossil-based polyol, the mass percentage of the bio-based fatty acid diethanolamide in the total mass of the polyol component is greater than 0% and not greater than 60%, the polyurethane foam material prepared based on the composition has good heat preservation performance, mechanical strength, low-temperature stability and aging resistance, and the polyurethane foam material can be applied to the refrigeration equipment.

The invention relates to the technical field of oilfield development, and discloses a method for improving carbon dioxide oil displacement effect, which comprises the following steps: (1) injecting a first composition into an oil reservoir, and then injecting carbon dioxide; wherein the first composition comprises xanthan gum, silicate and an optional first solvent; (2) injecting a second composition into the oil reservoir, and then injecting carbon dioxide; wherein the second composition comprises fatty alcohol polyoxyethylene ether sulfate, alkyl hydroxypropyl phosphate betaine, alkyl glycoside, coconut oil diethanolamide and an optional second solvent. By means of the method, the problem that the oil extraction rate is reduced due to gas channeling in an oil field can be effectively solved. According to the method, the fluidity of carbon dioxide gas in a reservoir high-permeability area or a crack can be effectively reduced, and the gas flooding sweep range is expanded, so that the carbon dioxide oil flooding effect is improved.

The invention belongs to the technical field of oil exploitation, and particularly relates to a composite blocking remover and a preparation method and application thereof. The composite blocking remover comprises the following components in percentage by weight, comprising the following components in percentage by weight: 5 to 8 percent of hydrochloric acid, 1 to 3 percent of fluoboric acid, 0.5 to 2 percent of acetic acid, 0.5 to 1 percent of dodecyl trimethyl ammonium chloride, 0.1 to 0.3 percent of potassium chloride, 0.3 to 0.8 percent of sodium erythorbate, 0.2 to 0.5 percent of tetrasodium glutamate diacetate, 1 to 2 percent of ethylenediamine tetraacetic acid, 0.1 to 0.2 percent of inositol hexaphosphate, 0.1 to 0.2 percent of cocoanut fatty acid diethanolamide, 0.3 to 0.5 percent of sodium dodecyl benzene sulfonate, 0.3 to 0.5 percent of dimethyl diallyl ammonium chloride, 0.1 to 0.2 percent of ethylene glycol monobutyl ether and the balance of water. The composite blocking remover provided by the invention does not generate the problem of secondary precipitation, slows down the reaction speed of acid rocks, effectively pushes a blocking removal measure solution into the deep part of a stratum, enlarges the blocking removal radius, realizes deep treatment of the stratum, improves the acidification effect, and prolongs the effective action time of acidification.

The invention provides a silicon dioxide and amorphous indium tin oxide selective etching solution. The silicon dioxide and amorphous indium tin oxide selective etching solution comprises an alcohol substance, a fluorine-containing substance, a corrosion inhibitor, a surfactant and the balance of water. The alcohol is one or a combination of more of ethylene glycol, polyethylene glycol, glycerol, isooctanol or isopropanol. The fluorine-containing substance is one or a combination of more of hydrofluoric acid, ammonium fluoride or ammonium bifluoride. The etching inhibitor is one or a combination of more of N, N-diisopropylethylamine, 2-hexylbenzimidazole, hydroxyethylidene-1, 1-diphosphonic acid, 5-oxo-4, 5-dihydropyrazolo [1, 5-a] pyrimidine-3-formonitrile or 5-chloro-[1, 2, 4] triazolo [1, 5-a] pyrimidine. The surfactant is one or a combination of more of polyethylene glycol mono-p-tert-octylphenyl ether, polyethylene glycol-propylene glycol monobutyl ether or coconut oil fatty acid diethanolamide. The etching solution can quickly remove a silicon dioxide deposition layer on the premise that the etching rate of amorphous indium tin oxide is smaller than or equal to 0.03 nm / min, the etched surface of silicon dioxide is smooth after etching, and etching of silicon dioxide and amorphous indium tin oxide has a high selection ratio.

The invention discloses a crude oil nano pour point depressing oil-displacing agent as well as a preparation method and application thereof, and belongs to the field of pour point depressing agents. The crude oil nano pour point depressing and oil displacement agent comprises the following components in percentage by mass: 5-30% of long-chain fatty acid diethanolamide, 0.5-4% of a cationic surfactant, 0.1-0.3% of an oleophylic modified nano material, 5-20% of an alcohol auxiliary agent, 1-10% of urea and the balance of water. Wherein the oleophylic modified nano material is selected from at least one of oleophylic modified nano silicon dioxide, graphene oxide and nano montmorillonite. The crude oil nanometer pour-point-depressing oil-displacing agent is good in stability and wide in application range, the use cost is reduced, and the pour-point-depressing oil-displacing effect can be achieved. The problems that an existing crude oil pour point depressant is complex in preparation process and narrow in application range are solved.

The invention belongs to the technical field of electric wires and cables, and particularly relates to a method for preparing a cable sheath material from a plastic recycled material and application of the cable sheath material. The method provided by the invention comprises the following steps: firstly, uniformly mixing a lubricant, an antioxidant and a surfactant to obtain a premix; the cable sheath material is obtained by mixing the recycled plastic material, the tackifying resin, the compatilizer and the premix, plastifying and granulating, and the surfactant comprises dodecyl ammonium chloride, PVP K30 and coconut diethanolamide. According to the method for preparing the cable sheath material from the recycled plastic material, provided by the invention, the physical properties of the cable sheath material are improved by utilizing the synergistic effect of the dodecyl ammonium chloride, the PVP K30 and the coconut diethanolamide. The cable sheath material is prepared from the recycled plastic material, resource recycling is achieved, and the method is simple in process, convenient to operate, suitable for industrial production and high in application and popularization value.

The present invention provides a cleaning agent, which comprises: a first component, which comprises at least one of sorbitan monolaurate and sorbitan monopalmitate, and coconut oil fatty acid diethanolamide, and a second component, which comprises at least one of sorbitan monolaurate and sorbitan monopalmitate, and coconut oil fatty acid diethanolamide; the second component comprises at least one of sodium dodecyl diphenyl ether disulfonate, sodium dodecyl benzene sulfonate and lauryl sodium sulfate; and the third component comprises at least one of benzotriazole and imidazoline. The invention further provides the electronic equipment, the electronic equipment comprises the metal shell, and the metal shell is treated by the cleaning agent.

The invention relates to a flooding aid for steam-nitrogen composite oil displacement of a heavy oil reservoir and an oil displacement method, and belongs to the technical field of heavy oil reservoir exploitation. The auxiliary flooding agent comprises the following components in parts by weight: 10-30 parts of sodium N-dodecyl amino carboxylate, 5-8 parts of a betaine type surfactant, 3-5 parts of alkyl glycoside, 1-3 parts of a macromolecular foam stabilizer, 1-3 parts of modified silicon dioxide and 1-2 parts of polyacrylamide. The modified silicon dioxide is prepared from cocoanut fatty acid diethanolamide modified nano silicon dioxide and hexadecyl trimethyl ammonium chloride modified nano silicon dioxide. The auxiliary flooding agent is matched with a nitrogen and steam composite injection mode, the oil-water interfacial tension can be effectively reduced, and the oil washing efficiency is improved.

The invention discloses an anti-scrotum eczema foam aerosol as well as a preparation method and application thereof. The anti-scrotum eczema foam aerosol is prepared from the following raw material components in percentage by weight: 20-30% of a traditional Chinese medicine composition, 8-12% of propane, 8-12% of butane, 3-5% of cocoanut fatty acid diethanolamide, 3-5% of sodium lauroyl sarcosinate, 1-2% of glycerol, 1-2% of propylene glycol and fatty alcohol-polyoxyethylene ether lt, 1%, lt of white oil; 1%, triethanolamine 1t; 0.5% of polyvinylpyrrolidone lt, and the balance of water; 0.5% of methyl chloride isothiazolinone lt; 0.5% of the raw materials, and 1t of deionized water; and 55%. The natural moisturizing balance of skin can be maintained, foam texture is fresh and cool and not greasy, normal respiratory metabolism of the skin is not affected, the skin is free of blocking feeling and slipping, normal touch feeling of the skin is not affected, the aerosol form is adopted, smearing is easy, medicine residues and discomfort can be reduced, and the skin care effect is good. The compliance of the patient can also be improved by using an odorless and quick-drying formula.

The invention provides a preparation method of coconut oil diethanolamide based on sodium methoxide catalysis and deep dehydration, which comprises the following steps: (1) taking coconut oil and methanol as raw materials, taking sodium methoxide as a catalyst, and reacting under a vacuum condition; (2) cooling the reaction liquid obtained in the step (1), filtering with diatomite, and dehydrating in a molecular sieve dehydrating tower to obtain dehydrated methyl ester; (3) mixing dehydrated methyl ester with diethanol amine, and carrying out amidation reaction under temperature gradient control and inert gas protection by taking sodium methoxide as a catalyst; and (4) carrying out reduced pressure distillation on the reaction product obtained in the step (3), and carrying out vacuum drying on residues to obtain the coconut oil diethanolamide. The invention can solve the problems of serious saponification and difficult product purity improvement in the preparation process of coconut oil diethanolamide in the prior art.

The invention belongs to the field of sanitary insecticides, and discloses a safe and environment-friendly insecticide and a preparation method thereof. The insecticide is prepared from the following components in parts by mass: 0.1 to 3 parts of pyrethroid, 0.1 to 2 parts of a synergist, 0.1 to 10 parts of an alkane solvent, 0.5 to 10 parts of fatty alcohol-polyoxyethylene ether, 0.1 to 5 parts of coconut oil diethanolamide, 0.1 to 1 part of ammonium benzoate, 50 to 70 parts of water, 1 to 10 parts of ethanol, 0.1 to 1 part of a de-foaming agent and 10 to 30 parts of tetrafluoroethane. According to the safe and environment-friendly insecticide, the solvent is mainly water, so that the greasy feeling easily left to passengers during use is eliminated; the production cost of water is low, and meanwhile, the dosage of the propellant is reduced, so that the cost is reduced; water is used as a main solvent, so that the risk of combustion after the product is used is reduced. The preparation method of the safe and environment-friendly insecticide, provided by the invention, is carried out through an oil-water two-phase proportioning process and a filling process, so that a large amount of foam is prevented from being generated in a reaction kettle.

The invention discloses a crude oil pour point depressant which comprises a main agent, an auxiliary agent and a high-flash-point organic solvent, and the mass ratio of the main agent to the auxiliary agent to the high-flash-point organic solvent is (25-35): (1-3): (62-74); wherein the main agent is formed by polymerizing ethylene-vinyl acetate, polyacrylic acid octadecanamide and alkyl maleimide according to a molar ratio of (2.8 to 3.2): (1.8 to 2.2): (1.8 to 2.2); the auxiliary agent is one or any combination of oleic acid diethanolamide, N-oleoyl sarcosine and hydroxy fatty acid; the high-flash-point organic solvent is one or any combination of trimethylbenzene, tetramethylbenzene, propylene glycol butyl ether and diethylene glycol monobutyl ether. The invention also discloses a preparation method and application thereof. The crude oil pour point depressant provided by the invention can effectively reduce the condensation point of high-condensation-point crude oil of which the condensation point is greater than 40 DEG C and improve the fluidity of the high-condensation-point crude oil of which the condensation point is greater than 40 DEG C, so that normal transportation of the crude oil is ensured, and powerful support is provided for reducing the operation cost of the high-condensation-point crude oil and ensuring normal transportation of the crude oil.

The present invention relates to a polyvinyl alcohol modified plastic film with a two-layer structure. The compositions of the upper and lower layers of the plastic film are both based on polyvinyl alcohol of grades 1788 and 1799, and sodium oleate, zinc stearate, glycerol, pentaerythritol, and oleic acid diethanolamide plasticizers are added. The co-extruded upper layer of the plastic film can adjust the dissolution time of the plastic film by rainwater (or irrigation water) by changing the microstructure (crystallinity and orientation). The weakly alkaline plasticizer contained in the co-extruded upper and lower layers of the plastic film can reduce the acidity of the soil and has the effect of improving soil acidification. During the natural degradation process of polyvinyl alcohol, it can wrap soil particles and lock the free water in the soil to avoid the damage caused by salt enrichment to the soil. This plastic film can achieve 100% biodegradation, and the degradation period is less than 1 year.

The invention discloses a preparation method of a flame-retardant high-elasticity fabric, and relates to the technical field of textile materials. When the flame-retardant high-elasticity fabric is prepared, soybean oil and 2-mercaptobenzimidazole initiate grafting and then react with 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride to prepare modified soybean oil, then the modified soybean oil reacts with diethanol amine to synthesize modified soybean oil diethanolamide, the modified soybean oil diethanolamide is used as a chain extender, and the flame-retardant high-elasticity fabric is prepared. The preparation method comprises the following steps: polymerizing the modified polyurethane with polytetramethylene ether glycol 2000, isophorone diisocyanate and a glycol ultraviolet absorbent to prepare modified polyurethane, and carrying out wet spinning to prepare functional polyurethane fibers; the preparation method comprises the following steps: carrying out condensation on m-phenylenediamine and phenylphosphonic dichloride to synthesize a flame-retardant intermediate, participating in meta-aramid polymerization to prepare modified aramid, and carrying out wet spinning to prepare flame-retardant aramid fibers; the two kinds of fibers are blended in proportion and subjected to post-treatment, and the flame-retardant high-elasticity fabric is obtained. The fabric prepared by the method has excellent flame retardance, ultraviolet resistance, oxidation resistance, high elasticity and mechanical strength.

The invention provides a low-temperature early-strength coagulant for a magnesite cementitious material, a preparation method and a use method. The low-temperature early-strength coagulant consists of the following components in parts by weight: 1.2-4.5 parts of glacial acetic acid, 0.1-4.2 parts of sodium trifluoromethanesulfonate, 1.2-4.0 parts of aluminum benzoate, 0.5-2.5 parts of dibenzylidene sorbitol, 1.5-3.0 parts of 4-ethoxy-4-oxobutyric acid, 0.9-1.5 parts of polyvinyl cyclohexane, 1.3-5.6 parts of amorphous sodium silicate, 2.2-4.5 parts of lauric acid diethanolamide, 1.1-3.3 parts of lauroamidopropyl dimethyl tertiary amine, 0.5-1 parts of an organosilicon waterproofing agent, 20-35 parts of ethanol and 35-50 parts of water. After being added as an external additive to the cementitious material, it can effectively shorten the coagulation time of the magnesia slurry under low temperature conditions, improve the early and late strength of the product, shorten the demoulding time, improve production efficiency, reduce energy loss, and solve the problem of brine return.

The application relates to the technical field of building materials, in particular to a light high-strength concrete and an assembled cable well prepared by the light high-strength concrete; the light high-strength concrete comprises the following raw materials in parts by weight: 80-100 parts of Portland cement, 35-45 parts of fine sand, 20-40 parts of coal gangue, 10-20 parts of silica fume, 40-55 parts of ceramsite, 10-15 parts of glass beads, 3-5 parts of polypropylene fiber, 4-6 parts of cocoyl diethanolamide, 0.8-1.5 parts of ammonium stearate, 0.6-1 part of dodecyl dimethyl amine oxide, 5-8 parts of a functional reinforcing agent, 2-5 parts of a water reducing agent and 90-120 parts of water; the concrete provided by the application has high flexural strength, excellent impact resistance and good durability, effectively guarantees the quality of the concrete and prolongs the service life of the concrete; in addition, the assembled cable well provided by the application is assembled in a splicing mode, so that the installation process is simplified, the installation efficiency is improved, the weight is lighter, and the transportation cost is lower.

A negative electrode active material and a preparation method therefore, and a related device are disclosed. The negative electrode active material comprises a negative electrode active substance and a coating layer. The coating layer is coated on the surface of the negative electrode active substance, and the coating layer comprises at least one of polymethyl methacrylate, sodium maleate, and oleic acid diethanolamide borate. The cycle performance and the initial coulombic efficiency of batteries are improved.

There is provided a demulsifier comprising at least one C8 to C18 fatty acid diethanolamide, at least one C12 to C24 fatty acid, at least one C6 to C18 alcohol ethoxylate for use in the recovery of a fuel oil from a fuel oil-in-water emulsion. There is additionally provided a process for the recovery of a fuel oil from a fuel oil-in-water emulsion using the demulsifier.