795 results about "Ammonium chloride mixture" patented technology

The invention relates to the technical field of oilfield chemistry, and discloses a graft modified cellulose filtrate reducer and a preparation method thereof.The preparation method comprises the following steps that modified hydroxyethyl cellulose, 2-acrylamide-2-methyl propane sulfonic acid, dimethyl diallyl ammonium chloride, alkenylated cardanol and N, N '-methylene bisacrylamide are added into deionized water, stirring is conducted, and a mixture is obtained; the preparation method comprises the following steps: adding cellulose into a reaction kettle, stirring for 10-15 minutes at the temperature of 40-60 DEG C at the speed of 300-400 rpm, dropwise adding ammonium persulfate and sodium hydrogen sulfite into a system, and continuously reacting for 4-6 hours to obtain the grafted modified cellulose filtrate reducer. The filtrate reducer disclosed by the invention has good high temperature resistance and salt resistance.

The invention relates to the technical field of precious metal recovery, in particular to a process for separating precious metal from copper-nickel smelting waste, which comprises the following steps: crushing and grading the waste, adding a sulfuric acid solution containing etidronic acid, leaching, and washing, drying and crushing filter residues to obtain a pretreated material; mixing the pretreated material with a sodium peroxide-sodium carbonate composite flux, roasting, leaching with water, and filtering to obtain a filter residue B; adding a leaching agent containing hydrochloric acid, sodium chlorate and 1, 2-cyclohexanediamine tetraacetic acid into the filter residue B according to the ratio of 1: 3-1: 5, and filtering to obtain filtrate C and filter residue C; adjusting the pH value of the filtrate C to 1.5-2.5, adding an ethanol solution of sodium N, N-diethyldithiocarbamate, precipitating, washing and calcining to obtain sponge palladium; adding ammonium chloride into the filtrate D, precipitating and calcining to obtain sponge platinum; and leaching the filter residue C by using a hydrochloric acid-chloroauric acid mixed solution containing diphenylthiourea, and replacing and calcining zinc powder to obtain crude gold. According to the process, the leaching rates of platinum, palladium and gold and the product purity are greatly improved; flux and reagent systems are optimized, consumption and energy consumption are reduced, waste liquid treatment is matched for up-to-standard discharge, and efficient resource recovery and environment-friendly cooperation are achieved.

The invention provides a method for synthesizing high-valued amorphous calcium carbonate through carbon sequestration of carbide slag, and belongs to the technical field of carbon sequestration and high-valued utilization of industrial solid waste resources. The method comprises the following steps: carrying out active calcium extraction reaction on a dried and ball-milled carbide slag aqueous solution through ammonium chloride, stirring and filtering to obtain a calcium-containing solution; the method comprises the following steps: adding a certain amount of absolute ethyl alcohol and magnesium chloride into a calcium-containing solution, fully stirring, adjusting the pH value to a certain value, and introducing CO2 gas for mineralization reaction to obtain a turbid liquid containing calcium carbonate precipitate; and carrying out centrifugal separation, alcohol washing and drying on the turbid liquid to obtain powder calcium carbonate. According to the method disclosed by the invention, the calcium carbide slag active calcium liquid is extracted by adopting ammonium chloride, and absolute ethyl alcohol-magnesium chloride is added to precisely regulate and control the reaction steps of CO2 and the extracted calcium liquid, so that the CO2 is efficiently fixed, and meanwhile, mineralization is performed to obtain a mixed crystal type amorphous nano calcium carbonate product. According to the technology, double targets of synthesizing high-valued calcium carbonate through carbide slag carbon sequestration are achieved, and an innovative technical path is invented for current solid waste resource utilization.

The invention relates to the technical field of chemical fiber manufacturing, in particular to a preparation process of graphene reinforced porous hollow polyester fibers. The problems that existing polyester fibers are insufficient in mechanical property and poor in moisture absorption and air permeability are solved. The preparation method comprises the following steps: modifying a PET sheet by using 2, 2-dimethylolpropionic acid and hydroxyl-terminated polydimethylsiloxane to obtain modified PET; the preparation method comprises the following steps: taking chitosan modified graphene as a carrier, and loading metal ions to obtain loaded graphene; polyethylene glycol and sodium bicarbonate are used as pore-foaming agents; modifying octadecyl dimethyl allyl ammonium chloride to obtain an antibacterial toughening agent; all the components are mixed, and the polyester fiber is prepared through melt spinning, stretching, heat treatment and alkali treatment. The mechanical property of the fiber is improved through the introduction of graphene and the modification treatment of the PET sheet; by utilizing the composite pore-foaming agent and adjusting the process, the moisture absorption and air permeability of the fiber are improved, and the service life of the fiber is prolonged.

The invention discloses a method for producing p-coumaric acid through double-enzyme cascade catalysis, which comprises the following steps: taking phenol, pyruvic acid and ammonium chloride as substrates, and carrying out cascade enzyme catalytic reaction on a tyrosine phenol lyase product and a tyrosine ammonia lyase product to synthesize p-coumaric acid. According to the method, phenol, pyruvic acid and ammonium chloride are used as substrates, a tyrosine phenol lyase product and a tyrosine ammonia lyase product are used as catalysts, the tyrosine phenol lyase product can convert the substrates into L-tyrosine, and the tyrosine ammonia lyase product can directly use the L-tyrosine as the substrate to convert the L-tyrosine into p-coumaric acid. Therefore, the tyrosine phenol lyase product and the tyrosine ammonia lyase product can realize cascade enzyme catalytic reaction in the same reactor, phenol with lower cost can be adopted as a conversion substrate, separation and purification of an intermediate product L-tyrosine are avoided, and the whole process flow is simple and efficient.

The application relates to the technical field of adhesives, and discloses a low-VOC flame-retardant double-faced adhesive for automobile interiors and a preparation method thereof. In the application, tetramethyl ethylene (epoxy propyl ammonium chloride) and bis (4-aminophenyl) -phenyl phosphate are reacted to obtain a cationic flame retardant, which is then added into a water-based acrylic resin emulsion to obtain a flame-retardant water-based acrylic resin adhesive and a flame-retardant double-faced adhesive. The cationic groups in the cationic flame retardant and the sodium carboxylate anions in the water-based acrylic resin form electrostatic force, the crosslinking degree between acrylic resin molecular chains is improved, the cohesion is increased, and the bonding performance and tensile shear strength of the adhesive are improved. The cationic flame retardant contains a triphenyl phosphate flame-retardant structure, has condensed-phase flame-retardant effect, improves the limiting oxygen index and the flame-retardant performance of the adhesive, and has good practical application in adhesives for new energy vehicles, double-faced adhesives and the like.

The invention belongs to the technical field of microbial culture, and particularly relates to a culture medium composition and application thereof in PDRN recombinant escherichia coli fermentation. The culture medium composition comprises a fermentation culture medium and a fed-batch culture medium, the fermentation culture medium consists of disodium hydrogen phosphate, monopotassium phosphate, ammonium sulfate, magnesium chloride, calcium nitrate tetrahydrate, glycerol and water; the supplemented culture medium is composed of dipotassium phosphate, sodium dihydrogen phosphate, sodium sulfate, ammonium sulfate, ammonium chloride, diammonium hydrogen citrate, glycerin and water, and the metabolic requirements of PDRN recombinant escherichia coli are accurately matched. Meanwhile, the invention provides a fermentation method using the composition, and the problems of unbalanced nutrition, low fermentation efficiency and the like of an existing culture medium are solved. Stable proliferation of thalli can be remarkably promoted, the yield of PDRN products is increased, the culture medium is easy and convenient to prepare, fermentation conditions are easy to control, and the culture medium is suitable for industrial large-scale production and has important application value.

The invention relates to the field of textiles, and particularly discloses a preparation process of antibacterial fibers, which comprises the following steps: S1, respectively drying and preparing polymer slices and an antibacterial agent; s2, performing melt spinning on the polymer slices and an antibacterial agent, performing air cooling, and then performing traction and winding to obtain antibacterial fibers; wherein the antibacterial agent is prepared by mixing dodecyl trimethyl ammonium chloride, polyvinylpyrrolidone and core-shell type antibacterial particles according to the mass ratio of (0.4-0.5): (0.1-0.2): 1, the core-shell type antibacterial particles are prepared by loading nano-zinc oxide and nano-silver particles on intercalation modified montmorillonite and then forming a silicon dioxide coating layer through a sol-gel method, and the core-shell type antibacterial particles are prepared from the silicon dioxide coating layer through a sol-gel method. And carrying out spray drying to obtain the core-shell antibacterial particles. The preparation method has the characteristic of improving the antibacterial durability and uniformity of the antibacterial fiber.

The invention discloses application of a carbon steel corrosion inhibitor based on combination of physical adsorption, chemical adsorption and hydrophobic barrier, and relates to the technical field of metal corrosion inhibition. The technical problem that a corrosion inhibitor in the prior art is low in corrosion inhibition efficiency in a high-temperature strong-acid environment is solved. The preparation method of the carbon steel corrosion inhibitor comprises the following steps: firstly, ultrasonically dissolving 4-aminopyridine to obtain a solution I; then, dropwise adding an isopropanol solution of 2, 3-epoxypropyltrimethylammonium chloride into the solution I according to a molar ratio of 1: 1, removing a solvent through a rotary evaporation method, washing with ethanol, centrifuging to obtain quaternized 4-aminopyridine, and drying the quaternized 4-aminopyridine; and finally, the dried quaternized 4-aminopyridine and bromododecane are added into acetonitrile for a reaction, diethyl ether is dropwise added into obtained reaction liquid for precipitation, and the quaternized 4-aminopyridine-bromododecane carbon steel corrosion inhibitor is obtained after drying. The prepared carbon steel corrosion inhibitor is high in corrosion inhibition efficiency in a high-temperature and strong-acid environment.

The invention relates to the technical field of high-performance polyester, and discloses a modified preparation method of functionalized antibacterial polyester fibers, which comprises the following steps: S1, graphene is treated by oxygen-argon mixed plasma to obtain hydroxylated graphene; s2, after hydroxylated graphene is dispersed, cerium nitrate and sodium citrate are added, and cerium-based metallized graphene is obtained; s3, carrying out a reaction on the cerium-based metallized graphene and 3-(2-aminoethylamino) propyltrimethoxysilane, so as to obtain aminated graphene; s4, aminated graphene dicyandiamide, ammonium chloride tetraethoxysilane and hexadecyl trimethyl ammonium bromide are subjected to a reaction, and guanidyl-meso-porous silicon-metal composite graphene is obtained; s5, reacting the product with epsilon-polylysine and polycaprolactone to obtain a modified composite antibacterial agent; s6, treating the polyester fibers with a mixed solution of alkali and a surfactant; s7, the polyester fibers react with a solution containing an antibacterial agent, tetrabutyl titanate, an initiator and a dispersing agent, and a finished product is obtained.

The invention discloses an anti-reflection self-cleaning coating for silane modified photovoltaic glass as well as a preparation method and application of the anti-reflection self-cleaning coating. The preparation method comprises the following steps: mixing 40-50 parts by weight of water and 30-40 parts by weight of absolute ethyl alcohol, adding 0.05-1 part by weight of a silane coupling agent, and stirring to obtain a mixture; dividing the sample into two parts, marking the two parts as a solution A and a solution B, and adding 0.5-1 part by weight of nano titanium dioxide into the solution A; adding 10-20 parts by weight of hydrophilic silica sol into the solution B; adding the solution A into the solution B, mixing, and adding 1-10 parts by weight of hexadecyl trimethyl ammonium chloride to obtain a TiO2 / SiO2 composite super-hydrophilic self-cleaning coating; mixing 5-10 parts by weight of absolute ethyl alcohol and 1-5 parts by weight of silane, and adding the mixture into the coating to obtain an anti-reflection self-cleaning coating solution for silane modified photovoltaic glass; and coating the coating on a photovoltaic glass substrate, and drying to obtain the anti-reflection self-cleaning coating for the silane modified photovoltaic glass.

The invention relates to the technical field of investment casting, in particular to an investment casting shell making method of an air inlet casing casting and a shell. The method comprises early-stage preparation (high-precision wax mold manufacturing and module assembling), a shell manufacturing process (shell manufacturing of a surface layer, a transition layer and a back layer) and subsequent procedures (dewaxing, roasting, pouring, cleaning and detecting). The surface layer and the transition layer are dried by silica sol-based paint (zircon powder / mullite powder) in cooperation with strong wind power, so that the surface quality and the initial strength are ensured; the back layer is hardened by adopting a water glass-based coating (coal gangue powder) matched with ammonium chloride, so that the supporting strength and air permeability of the main body are provided. By optimizing a composite shell-making material system and process parameters, the problem that in the prior art, the strength, the air permeability, the quality and the efficiency of a shell are difficult to consider at the same time is solved, and the method is particularly suitable for production of complex thin-wall castings such as aero-engine air inlet casings with extremely high requirements for the surface quality, the size precision and the internal structure; the defects of air holes, slag inclusion and the like can be effectively reduced.

The invention discloses a two-dimensional heterostructure silver-loaded mesoporous copper nanosheet catalyst, a preparation method thereof and application of the two-dimensional heterostructure silver-loaded mesoporous copper nanosheet catalyst in electro-catalytic synthesis of alanine, amphiphilic molecules N-(2-mercaptoethyl)-N, N-dimethyldocosyl-1-ammonium chloride are dissolved in water, then metal precursors silver nitrate and copper nitrate are added, stirring is carried out, and the two-dimensional heterostructure silver-loaded mesoporous copper nanosheet catalyst is obtained. Finally, hydrazine hydrate is added for step-by-step reduction, and the two-dimensional heterostructure silver-mesoporous copper nanosheet (Ag-meso-Cu) catalyst is obtained. The Ag-meso-Cu catalyst prepared by the method disclosed by the invention has an asymmetric two-dimensional mesoporous structure and shows enhanced electro-catalysis alanine synthesis performance, the Faraday efficiency of alanine synthesis is up to 89.84%, and the yield is up to 0.23 mmol h <-1 > mg <-1 >. The preparation of the two-dimensional heterostructure nanosheet with a multilevel structure is realized by utilizing a simple liquid phase method, and a new strategy is provided for electrochemical synthesis of amino acid under a mild condition.

The invention provides a polymer thickening agent, a preparation method thereof and fracturing fluid prepared from the polymer thickening agent, and belongs to the technical field of fracturing fluid. The invention relates to a water-soluble polymer, which is prepared from a polymer monomer, acrylamide, methacryloyloxyethyl trimethyl ammonium chloride and 1-vinyl-2-pyrrolidone according to a mass ratio of (111-218): (21-36): (16-23): (41-52). The polymer thickening agent prepared by the invention has better tackifying performance, shearing resistance, salt resistance, excellent temperature resistance, good sand-carrying performance and better acid resistance, reduces the acid rock reaction rate, improves the penetration depth of acid etching cracks, is non-toxic, safe and environment-friendly, is safer in gel breaking and lower in damage, and has a wide application prospect.

The invention provides a microcapsule type self-early-warning and self-repairing epoxy coating as well as a preparation method and application thereof, and belongs to the technical field of anticorrosive coatings. The method comprises the following steps: mixing urea, resorcinol, ammonium chloride and a polyethylene grafted maleic anhydride aqueous solution, and adjusting the pH value of the mixed solution to obtain a water phase; mixing the PU prepolymer, DCF, TO and ethyl phenylacetate to obtain an oil phase; the water phase and the oil phase are mixed, a formaldehyde solution is added into the mixed solution for a reaction, and microcapsules are obtained; and adding the microcapsule into the epoxy coating to obtain the microcapsule type self-early-warning and self-repairing epoxy coating. According to the microcapsule, PU / UF serves as a shell of DCF and TO, DCF serves as an early warning agent, and TO serves as a repairing agent; the DT coated PU / UF microcapsule has good dispersibility in the coating, when the coating is damaged, the microcapsule is broken to release DCF and TO, the self-early warning and self-repairing performance of the coating is achieved, and metal corrosion is delayed.

The invention discloses polyacrylamide for a screw press of a pulp paper plant. The polyacrylamide is prepared from the following components in parts by weight: 3 to 10 parts of acrylamide, 1 to 6 parts of 2-acrylamido-2-methylpropanesulfonic acid, 0.1 to 3 parts of dimethyl diallyl ammonium chloride, 0.01 to 1 part of hydrophobic modifier, 0.01 to 0.5 part of cross-linking agent and 0.001 to 0.01 part of initiator. The invention also discloses a preparation method of the polyacrylamide. According to the invention, through copolymerization of the composite acrylamide and the salt-resistant monomer and combination of cross-linking modification, the salt resistance, shear resistance and floc strength of polyacrylamide are improved. By introducing hydrophobic groups, the adhesiveness of the filtrate is reduced, backmixing of the squeezed filtrate is reduced, and the dehydration speed and the floc stability are balanced.

The invention belongs to the technical field of high-activity tungsten powder preparation, and particularly relates to high-specific-surface-area high-activity tungsten powder and a preparation method thereof.The preparation method comprises the steps that diluted hydrochloric acid is added into an ammonium tungstate solution to adjust the pH to be acidic, then hydrogen peroxide is added, and a mixed solution is obtained; carrying out vacuum drying on the mixed solution at the temperature of less than or equal to 80 DEG C to obtain a solid substance; and in the hydrogen atmosphere, the solid matter is reduced, the tungsten powder with the high specific surface area and the high activity is obtained, and the specific surface area is larger than or equal to 10 m < 2 > / g. According to the technical scheme, ammonium chloride and peroxotungstic acid are creatively applied to be subjected to low-temperature heating decomposition to generate a large amount of gas to form a porous framework, and therefore the nano tungsten powder controllable in granularity, good in dispersity, high in specific surface area and high in activity is prepared; the performance of the high-specific-surface-area and high-activity nano tungsten powder can be controlled by simply controlling process conditions; and the application potential of the nano tungsten powder as a novel high-performance tungsten material is increased.

The invention discloses a preparation method of high-color-fastness woven body paper and the high-color-fastness woven body paper, and relates to the technical field of papermaking, and the preparation method of the high-color-fastness woven body paper comprises the steps of preparing a composite dyeing assistant and preparing the woven body paper. The preparation method comprises the following steps: stirring and mixing cationic microcrystalline cellulose, sodium carboxymethyl cellulose, triethanolamine myriceate, glucan hydroxypropyl trimethyl ammonium chloride, a water-based polycarbodiimide cross-linking agent and deionized water to obtain a composite dyeing assistant, then adding the composite dyeing assistant into slurry, adding a water-based dye, and carrying out a papermaking process to obtain the composite dyeing assistant. According to the method, the color fastness of the woven body paper can be improved. The sun-proof grade of the high-color-fastness woven body paper is greater than or equal to 4 grades.

The application belongs to the technical field of fine chemical industry, and particularly relates to a cationic microemulsion water-repellent quick-drying agent and a preparation method and application thereof. The cationic microemulsion water-repellent quick-drying agent is prepared by using Arquad 2C-75 (dicoconut alkyl dimethyl ammonium chloride) as a core cationic component, compounding refined white oil, matching a surfactant, a coupling agent and deionized water to construct a microemulsion system, mixing an oil phase, preparing a water phase, primary emulsifying, high-pressure homogenizing and post-treating. The product prepared by the application has a contact angle greater than 110 degrees, a sliding time shortened by more than 31.4%, is stable without precipitation in the range of-10 DEG C to 50 DEG C, has a viscosity less than 100 cP and can be dissolved and used immediately, is compatible with an anion system, has no ethanol / toluene solvent, VOCs detection meets the limit value of GB38508-2020, and has excellent performance in water-repellent quick-drying on the surface of an automobile and a wide application range.

The invention relates to the technical field of solid waste recycling, and particularly provides a circulating fluidized bed system for gasification fly ash resourceful treatment and an aluminum oxide leaching method. The system comprises a hearth, a gas-solid heat exchange bed and an activation reactor. The gasified fly ash and a water glass binder are agglomerated and thickened through a fine powder agglomerator, incineration is conducted through a hearth, and ammonia gas is injected to fix heavy metal; the ash enters an activation reactor, a mullite structure is destroyed by utilizing residual carbon oxygen-enriched combustion (850-950 DEG C) of fly ash, aluminum ions are extracted through gradient acid leaching, acid leaching liquid is neutralized by ammonia water to precipitate aluminum hydroxide, and high-purity aluminum oxide (greater than 99%) and a byproduct ammonium chloride fertilizer are obtained through calcination; the escape rate of fine particles is lower than 10%, the leaching rate of aluminum oxide exceeds 85%, and the treatment cost is reduced by 50% or above compared with that of a traditional method.

The application discloses a non-oxidative weak-acid polyacrylamide degrading agent and a preparation and use method thereof, and the degrading agent comprises the following components: a reducing agent, a regulator, a mutual solvent and water; the reducing agent is one of 3-O-ethyl ascorbic acid ether and L-ascorbic acid-2,6-dibutyrate; the regulator is ammonium chloride; and the mutual solvent is one of ethylene glycol monobutyl ether and isopropyl alcohol. The problems that the existing degrading agent needs to be isolated by a plug for redox reaction with subsequent injected mud acid or secondary precipitation is caused by metal ions such as Na + , K + , Fe 2+ and the like in the degrading agent and subsequent injected mud acid are effectively solved.

The invention relates to the field of packaging bags, and discloses an antibacterial composite bag for food and a preparation method thereof, the antibacterial composite bag for food comprises low density polyethylene, a functional additive, modified tetrapod-like zinc oxide whiskers and a lubricant; according to the functional additive, lignin nanoparticles are used as a core, polydopamine is used as a shell, graphene oxide is assembled to prepare a composite material, and gamma-aminopropyltriethoxysilane is used for amination grafting of the composite material. The nano cuprous oxide is loaded on the aminated composite material by adopting a one-step reduction method and reacts with glycidyl dodecyl dimethyl ammonium chloride; the modified tetrapod-like zinc oxide whisker is prepared by coating the surface of the tetrapod-like zinc oxide whisker with silver-doped zinc oxide through a hydrothermal synthesis method, and by adding the functional additive and the modified tetrapod-like zinc oxide whisker, the matrix material is endowed with good mechanical property, antibacterial property, ultraviolet resistance, heat resistance and flame retardance.

The application discloses a phenylboronic acid-based zwitterionic surfactant and a preparation method and application thereof, wherein the phenylboronic acid group of the phenylboronic acid-based zwitterionic surfactant includes two isomers, i.e. m BDC n AB or p BDC n AB, and alkyl chain lengths are C 10 alkyl, C 12 alkyl and C 14 alkyl, and a total of six surfactants are abbreviated as BDC n AB. BDC n AB is mixed with dodecyl-dimethyl-1,2-dihydroxypropyl ammonium chloride to prepare a mixed micelle, and an asymmetric spacer group with a dynamic covalent bond combined by a borate ester bond is generated in situ under mild conditions of normal temperature and neutral pH, thereby obtaining a pH-responsive dimer surfactant, and the dimer surfactant has a pH response interval consistent with a drug release condition for treating cancer in a human body, and can be used for preparing a drug-loaded micelle for treating cancer in the human body.

The invention discloses a regenerated carbon aggregation medium as well as a preparation method and application thereof, and belongs to the technical field of organic matter recovery. The preparation method comprises the following steps: by taking a carbon aggregation medium enriched with organic matters as a matrix and hydrochloric acid or a hydroxide modifier, carrying out hydrothermal reaction in a stirring state, filtering, drying and grinding to obtain hydrothermal regenerated carbon; and adding water into the hydrothermal regenerated carbon, adjusting the pH value to 2-7, heating to 50-70 DEG C, adding potassium persulfate and a methacryloyloxyethyl trimethyl ammonium chloride solution in a protective atmosphere, and carrying out graft copolymerization reaction on the hydrothermal regenerated carbon and methacryloyloxyethyl trimethyl ammonium chloride under the initiation action of potassium persulfate to obtain the regenerated carbon aggregation medium. The grafting rate, grafting efficiency and charge density of the prepared regenerated carbon aggregation medium can reach 7.76%, 7.96% and 1.132 mmol / g respectively, and the removal rates of COD (Chemical Oxygen Demand) and turbidity are 62.81% and 88.87% respectively.

The invention relates to three-dimensional shaping hair mud with high filling power and a preparation method of the three-dimensional shaping hair mud, and belongs to the technical field of daily chemicals. The hair mud comprises the following components in percentage by mass: 4-6% of a main setting agent, 0.1-0.3% of an auxiliary setting agent, 30-40% of an emulsifier, 3-10% of a humectant, 3-10% of a thickener, 1-5% of synthetic wax, 1-4% of an adsorbent, 1-2% of a preservative, 0.5-1.5% of oleyl alcohol polyether-10 hydrate, 0.5-2% of acceptable auxiliary materials in the hair mud and the balance of water. The main setting agent is composed of a VP / VA copolymer, lauryl trimethyl ammonium chloride, sodium hydrogen sulfite and water, and the auxiliary setting agent is composed of water, polyquaternium-11, phenoxyethanol and caprylyl glycol. The hair mud disclosed by the invention not only has excellent bulkiness, lasting shaping and cleanliness, but also remarkably improves the tenderness and stability of a product, and provides better user experience.

The invention discloses an acrylic acid silane ester self-renewal antifouling resin based on cation-pi interaction as well as a preparation method and application of the acrylic acid silane ester self-renewal antifouling resin. Methyl methacrylate, ethyl acrylate, triisopropylsilyl methacrylate, acrylic acid-2-methyl ethyl ester, paeonol methacrylate and acryloyloxyethyl trimethyl ammonium chloride are synthesized through a random free radical polymerization reaction with azodiisobutyronitrile and benzoyl peroxide as initiators. Wherein the methacrylic acid paeonol ester monomer is prepared by carrying out substitution reaction on paeonol and methacryloyl chloride. The anti-fouling agent is anchored on the surface of the coating again through cation-pi interaction, so that the anti-fouling effect is enhanced, and the coating still has good anti-fouling capacity even in a static environment.

The invention relates to the technical field of oilfield chemistry, in particular to a self-crosslinking thickening agent and a preparation method thereof, the self-crosslinking thickening agent is obtained by copolymerization of acrylamide, acrylic acid, a physical crosslinking monomer and a chemical crosslinking monomer; the physical crosslinking monomer is N-cinnamyl-N, N-dimethyl hexadecyl ammonium chloride; the chemical cross-linking monomer is N-allyl-N, N-dimethyl p-benzaldehyde ammonium bromide, and the chemical cross-linking monomer is N-allyl-N, N-dimethyl p-benzaldehyde ammonium bromide; the molar ratio of the acrylamide to the acrylic acid to the physical crosslinking monomer to the chemical crosslinking monomer is (70-80): (15-25): (0.1-0.5): (0.1-0.5). According to the self-crosslinking thickening agent and the preparation method thereof, the thickening agent has good temperature resistance and salt resistance, meets the current oil and gas field development requirements, is reliable in method principle, easy and convenient to operate and mild in reaction condition, has wide market application prospects and can be widely applied to oil and gas resource development of high-temperature and ultrahigh-temperature reservoirs.

The application discloses a plant-based sewage filtering membrane and a preparation method thereof, and relates to the technical field of membrane materials. In the preparation of the plant-based sewage filtering membrane, tetraethyl orthosilicate, zinc acetate, an acetic acid solution and a polyvinyl alcohol solution are mixed, and then electrostatic spinning and calcination are performed to obtain a flexible base film. After the flexible base film is treated with trimethoxysilane, one side of the flexible base film is grafted with diethyl allyl malate, and the other side of the flexible base film is grafted with allyl trimethyl ammonium chloride. After treatment with hydrochloric acid, the plant-based sewage filtering membrane is obtained. The plant-based sewage filtering membrane prepared by the application has good flexibility, sewage filtering effect and antibacterial performance.

The application relates to the technical field of wastewater treatment, and discloses an expanded graphite catalyst for degrading chemical pharmaceutical wastewater and a preparation method. In the application, 2,2'-diamino-N-(hydroxypropyl trimethyl ammonium chloride) diethylamine is used to carry out an amidation reaction with carboxyl groups on the surface of oxidized expanded graphite, so as to bond and introduce active functional groups such as amino groups, quaternary ammonium salts and hydroxyl groups on the surface of the expanded graphite; then, through high-temperature hydrothermal reaction, zinc oxide particles are uniformly generated in the expanded graphite, and the expanded graphite catalyst is obtained. The active groups such as the hydroxyl groups of the expanded graphite catalyst form hydrogen bonds and other interactions with tetracycline hydrochloride, so that the adsorption and removal rate of the tetracycline hydrochloride is improved. The zinc oxide particles are uniformly grown in the expanded graphite matrix and are not prone to agglomeration, and a large number of photocatalytic active sites are exposed, so that the expanded graphite catalyst has better photocatalytic degradation performance on the tetracycline hydrochloride.

The application belongs to the technical field of three-proofing glue and specifically relates to three-proofing glue comprising double-cured resin and a preparation method and application thereof. The three-proofing glue comprises, by mass fraction, 35-55 parts of siloxane-modified acrylate oligomer, 5-15 parts of di-functional group hydroxyl-containing polyurethane acrylate resin, 30-60 parts of active diluent and 1-5 parts of photoinitiator. The siloxane-modified acrylate oligomer is obtained by reacting side-chain fluorine-containing epoxy-terminated polysiloxane and acrylic acid to obtain prepolymer A and then reacting the prepolymer A with methyl orthosilicate. The three-proofing glue has excellent adhesion, neutral salt spray resistance, ammonium chloride solution resistance, sodium carbonate solution resistance and mixed gas resistance and can be used for protecting circuit boards and electronic equipment in a chemical plant environment.