366results about How to "Reduce interfacial tension" patented technology

The invention relates to the technical field of oilfield exploitation, and discloses a nanometer oil-displacing agent for oilfield oil extraction and a preparation method thereof.The nanometer oil-displacing agent takes modified nanometer silicon dioxide and a surfactant as main components, polymer macromolecules are modified on the surface of the nanometer silicon dioxide to serve as a main body of the nanometer oil-displacing agent, and the nanometer oil-displacing agent is prepared. Under the action of the surfactant, the nano silicon dioxide can flow into the fine throat and the micro throat, and the polymer macromolecules of the branched structure can generate a relatively strong interaction force with the rock, so that the polymer macromolecules are firmly adhered to the surface of the rock, the adhesion of crude oil on the surface of the rock is reduced, a smooth crude oil channel is constructed, and the flowing pressure of liquid is reduced; and crude oil fluidity is improved. The structure of the cross-linking agent contains quaternary ammonium cations, so that the electrostatic repulsion effect between nano silicon dioxide can be greatly enhanced, aggregation between nano silicon dioxide and nano silicon dioxide can be avoided, the interfacial tension can be efficiently maintained, the oil-water interfacial tension is greatly reduced, and the recovery rate of crude oil is effectively increased.

The invention discloses a nano imbibition oil displacement agent as well as a preparation method and application thereof. The preparation method of the nano imbibition oil-displacing agent comprises the following steps: reacting citric acid, glucose, long-chain amine, a surfactant, an organic solvent, short-chain alcohol and water at 140-200 DEG C under 0.4-0.5 MPa for 6-16 hours to obtain the nano imbibition oil-displacing agent. The method disclosed by the invention is simple, convenient, environment-friendly and low in cost, and the prepared nano imbibition oil displacement agent has good surface and interface activity at high temperature and high salt, can be used as an imbibition oil recovery agent for an ultra-low permeability reservoir, and can remarkably improve the oil recovery rate.

The invention relates to the technical field of polishing solutions, in particular to an efficient and environment-friendly chemical polishing solution and a preparation method thereof. The chemical polishing solution comprises the following raw materials in percentage by weight: 5%-8% of a nano metal abrasive, 2%-4% of a silicon oxide abrasive, 2%-10% of an oxidizing agent, 1%-5% of a complexing agent, 0.05%-0.5% of a corrosion inhibitor and the balance of deionized water. The chemical polishing solution further comprises a pH regulator, and the pH of the chemical polishing solution is regulated to 7.5-8.5 by adopting the pH regulator. The chemical polishing solution disclosed by the invention adopts environment-friendly raw materials, shows a good polishing effect when being used for precision machining of the monocrystalline silicon wafer, and is high in material removal efficiency, and the polished silicon wafer is smooth in surface and free of damage.

The invention discloses a halogen-free flame-retardant environment-friendly heat-resistant cable and a preparation method thereof, belongs to the technical field of cable material processing, and is used for solving the technical problem that the mechanical strength and heat resistance of a halogen-free flame-retardant environment-friendly cable in the prior art need to be further improved. The cable comprises a plurality of cable conductors, a wrapping layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer comprises the following components in parts by weight: 70-80 parts of low-density polyethylene, 20-30 parts of modified polysiloxane, 10-16 parts of modified polyvinyl alcohol, 15-18 parts of modified kaolin, 2-3 parts of an initiator and 3-4 parts of an auxiliary additive. Low-density polyethylene is reinforced and modified through modified kaolin, modified polyvinyl alcohol and modified polysiloxane, so that not only are the mechanical strength and flame retardance of the environment-friendly heat-resistant cable effectively improved, but also the high-temperature resistance of the cable is improved, and the service life of the cable in a high-temperature environment is prolonged.

The invention relates to a high-temperature and high-salt oil reservoir oil displacement system as well as a preparation method and application thereof. The high-temperature and high-salt oil reservoir oil displacement system comprises the following raw materials in percentage by weight: 0.05-0.5% of a betaine surfactant, 0.01-0.3% of a polymer, 0.001-0.01% of nanoparticles and the balance of water, the betaine surfactant comprises an alkyl amide hydroxy sulfobetaine surfactant and / or an alkyl aryl hydroxy sulfobetaine surfactant. Through mutual cooperation of the specific betaine surfactant, the polymer and the nanoparticles, a synergistic effect is exerted, an oil displacement system which has ultralow interfacial tension and excellent emulsifying performance under high-temperature and high-salt conditions and can effectively improve the recovery efficiency of a high-temperature and high-salt oil reservoir is obtained, and the oil displacement system can be well applied to tertiary oil recovery.

The invention relates to the technical field of high-performance fibers, in particular to a high-performance fiber containing carbon nanotubes and a preparation method of the high-performance fiber. The preparation method comprises the following steps: adding ammonium polyphosphate, alkylphenol polyoxyethylene ether and tetraethyl orthosilicate to obtain a silicon-coated ammonium polyphosphate material; then adding a silicon-coated ammonium polyphosphate material and gamma-aminopropyltriethoxysilane, so as to obtain a modified silicon-coated ammonium polyphosphate material; and mixing the modified silicon-coated ammonium polyphosphate material, tannic acid and a buffer solution to obtain the double-layer coated ammonium polyphosphate material. The fiber is obtained by adding a carbon nanotube material, a double-layer coated ammonium polyphosphate material, polytrimethylene terephthalate, a compatilizer and polypropylene and carrying out melt spinning. And then the fibers are sequentially soaked in an ethylenediamine solution, a polyglutamic acid solution and a chitosan solution, and the high-performance fibers are obtained. The obtained high-performance fiber has good flame retardance and antibacterial property, so that the high-performance fiber has a wide application prospect in the technical field of high-performance fibers.

The invention discloses a composite additive for a vanadium electrolyte and a preparation method of the composite additive, and relates to the technical field of vanadium batteries. The composite additive is applied to the electrolyte of the vanadium battery, the electrolyte is a positive electrode electrolyte and a negative electrode electrolyte, the concentration of the vanadium electrolyte can be improved, precipitation and crystallization of vanadium ions can be inhibited, and meanwhile, the electrochemical activity of the vanadium battery can be improved. The composite additive comprises a mixture formed by a first component and a second component, the first component comprises at least one of a fluorine-containing compound, oxyacid and oxysalt, and the second component is a surfactant.

The invention belongs to the technical field of insulation heat dissipation coatings, and particularly relates to a magnesium alloy high-pressure-resistance surface treatment liquid and a preparation method thereof. The coating comprises the following raw materials in parts by weight: 30-40 parts of organic silicon modified waterborne epoxy resin, 9-12 parts of modified hexagonal boron nitride, 10-15 parts of modified graphene, 2-4 parts of a curing agent, 0.5-2 parts of a flatting agent, 1-2 parts of a defoaming agent and 25-50 parts of acetone. A coating formed on the surface of a magnesium alloy base material through the magnesium alloy high-pressure-resistance surface treatment liquid has high volume resistance, high breakdown voltage resistance, high corrosion resistance and high heat conductivity coefficient, and the magnesium alloy high-pressure-resistance surface treatment liquid can be applied to the field of new energy and can also be applied to the fields of aerospace, 3C electronics and the like. And the market prospect is wide.

The invention relates to the technical field of epoxy splicing adhesives, in particular to a high-performance prefabricated part epoxy splicing adhesive and a preparation method thereof.The epoxy splicing adhesive comprises a component A and a component B. The component A is prepared from 3%-8% of polyether polyol, 2%-4% of hydrophobic fumed silica, 0.1%-1% of a silane coupling agent, 0.01%-0.5% of a defoaming agent, 50%-75% of modified quartz sand, 1%-5% of color paste and the balance epoxy resin; the modified quartz sand is prepared by grafting an amino silane coupling agent on the surface of quartz sand, then reacting with polychlorophosphazene, and then reacting with glycidol; the component B comprises the following components in percentage by weight: 0.2-4% of color paste, 1-5% of hydrophobic fumed silica, 0.1-1% of an amino silane coupling agent, 10-25% of 0.5 mm quartz sand, 40-60% of 0.1 mm quartz sand and the balance of a modified amine curing agent; the preparation method has the advantage that the mechanical strength and the bonding strength of the epoxy splicing adhesive are improved.

The invention relates to the technical field of grease processing, in particular to a preparation method for extracting refined vegetable oil fatty acid. A preparation method for refined vegetable oil fatty acid extraction comprises the following steps: vegetable oil refining treatment and refined vegetable oil fatty acid separation and extraction. In the vegetable oil refining treatment process, the degummed vegetable oil is subjected to deacidification and decolorization treatment by using the modified rice hull-based porous carbon, so that pigments, free fatty acids and heavy metal components in the vegetable oil can be efficiently adsorbed, the effects of adsorption, deacidification and decolorization are achieved at the same time, and the vegetable oil refining efficiency is effectively improved; vegetable oil refining quality is improved, so that the extraction effect of refined vegetable oil fatty acid is improved; in the separation and extraction process of fatty acid in the refined vegetable oil, the contact between urea and saturated fatty acid in the refined vegetable oil can be promoted by adding the crystallization inclusion additive, and a stably-clathrated composite crystal is quickly formed, so that the extraction purity of unsaturated fatty acid is improved.

The invention provides a multiphase multicomponent seepage numerical simulation method based on a discrete fracture model. The method comprises the following steps: step 1, establishing a multi-phase multi-component seepage mathematical model, and solving; step 2, mesh generation of the discrete fracture model; step 3, discretization of a mass conservation equation; step 4, calculating the conductivity between the matrix and the crack; and 5, establishing a nonlinear equation set, and completing solution by adopting an automatic differential technology and a Newton iteration method. According to the method, a complex fracture network is represented through a discrete fracture model, reservoir stress sensitivity and nonlinear seepage characteristics are considered, adsorption and diffusion effects of a surfactant and salt and mechanisms such as capillary pressure, relative permeability curve and osmotic pressure change under the action of the surfactant and the salt are coupled, and a multi-phase multi-component seepage mathematical model is established. According to the method, fracture explicit representation is achieved through a self-adaptive mesh generation method, a finite volume method is adopted for solving, the model is established, and therefore ultra-low permeability-tight oil reservoir development simulation under the influence of a complex fracture network is achieved.

The invention relates to the technical field of oil well paraffin removal and prevention, and discloses a paraffin removal and prevention agent for an oil well shaft and a preparation process. The paraffin remover and inhibitor for the oil well shaft comprises the following components in parts by weight: 10-25 parts of a compound surfactant, 15-30 parts of a mutual solvent, 5-10 parts of a stabilizer, 1-10 parts of a novel wax crystal improver, 0.2-0.5 part of a rapid penetrant, 0.5-1.5 parts of alkali and 25-70 parts of water, the novel wax crystal improver has a structure similar to that of paraffin, and wax crystals can be dissolved in the novel wax crystal improver, so that the wax crystals are not easy to gather and deposit on a pipe wall, and the dissolution rate of the wax crystals is further improved; sodium sulfonate in the structure has strong polarity and hydrophilicity, can adjust the crystallinity of paraffin inhibitor molecules, has a synergistic effect with asphalt, colloid and the like in crude oil, reduces the surface tension of water, has a good wetting effect, and improves the low-temperature fluidity of the crude oil.

The invention relates to the technical field of demulsifiers, and particularly discloses a demulsifier for treating waste emulsion and a demulsification process of the demulsifier. The invention discloses a demulsifying agent for treating waste emulsion. The demulsifying agent is prepared from the following raw material components in parts by weight: 1 to 1.2 parts of calcium chloride, 1 to 1.1 parts of polyaluminum chloride, 0.7 to 0.85 part of anionic polyacrylamide, 0.3 to 0.5 part of ferrous sulfate, 1 to 1.2 parts of a surfactant, 0.4 to 0.5 part of an auxiliary demulsifying agent, 0.1 to 0.2 part of a synergist and 0.1 to 0.2 part of a stabilizer. The demulsifier disclosed by the invention has a relatively good demulsification effect, so that the treatment effect on the waste emulsion is improved.

The invention relates to the field of resin synthesis, in particular to functionalized hierarchical pore adsorption chelating resin as well as a preparation method and application thereof. According to the functionalized hierarchical pore adsorption chelating resin, the particle size is 0.65-1.2 mm, the specific surface area is 550-1500 m < 2 > / g, the pore volume is 0.4-1.8 cm < 3 > / g, the proportion of micropores is 15-35%, the proportion of mesopores is 25-40%, and the proportion of macropores is 25-60%. Micropores, mesopores and macropores of the functionalized hierarchical pore adsorption chelating resin are uniformly distributed, the particle size is moderate, the specific surface area and pore volume are relatively large, and the functionalized hierarchical pore adsorption chelating resin has relatively large adsorption capacity on copper ions, nickel ions and lead ions.

The invention belongs to the technical field of papermaking dyes, and particularly relates to an environment-friendly dye for papermaking and a preparation method thereof. According to the invention, the sulfonate surfactant is prepared by a two-step method, and the sulfonate surfactant has excellent dispersibility, stability and emulsibility, and has good compatibility with alkaline auramine O; the sulfonate surfactant is compounded with the alkaline bright yellow O for use, so that the solubility, dispersion stability and high-temperature stability of the alkaline bright yellow O dye can be remarkably improved in manners of reducing interfacial tension, increasing wettability, improving permeation and the like. When the prepared environment-friendly dye is used for dyeing paper, the dye-uptake and the color fastness to light of the dye can be obviously improved, the dyeing uniformity and effect are improved, the dye waste is effectively reduced, and the requirement of green development is met.

The invention relates to solvent wiping resistant UV ink and a preparation method thereof, and belongs to the technical field of ink. The UV ink is prepared from the following components: 15 to 20 weight percent of pigment, 1.9 to 2.4 weight percent of photoinitiator, 5.5 to 7.2 weight percent of organic silicon additive, 1.5 to 2 weight percent of wetting dispersant, 1.2 to 1.6 weight percent of flatting agent, 1 to 1.3 weight percent of defoaming agent, 1.4 to 1.8 weight percent of covering agent, 16 to 22 weight percent of cosolvent and the balance of acrylate binder, the organosilicon auxiliary agent contains multiple silicon chains, quaternary ammonium structure in-situ modification reduces interfacial tension between the silicon chains and an acrylate matrix and facilitates migration and spreading of the silicon chains to the surface of the ink layer, and the quaternary ammonium structure promotes photocuring crosslinking of acrylate, so that a silicon-rich high-crosslinking protective layer is formed on the surface of the ink layer, and swelling and friction loss of a solvent are effectively resisted.

The invention discloses an oil sludge modifying and flooding agent as well as a preparation method and application thereof. The oil sludge modifying and flooding agent comprises the following components in parts by mass: 1-5 parts of oil sludge, 1-5 parts of a sulfonating agent, 0.1-5 parts of an alkali neutralizer and 0.01-3 parts of a surfactant. The oil sludge profile control and displacement agent provided by the invention can obtain good profile control and oil washing effects through the synergistic compounding effect of all the components. On the basis, the sulfonating agent is used for sulfonating crude oil rich in aromatic compounds in the oil sludge, part of the oil sludge is converted into mahogany petroleum sulfonate through alkali neutralization, and after the sulfonating agent is compounded with the surfactant, the oil washing effect of the oil sludge is activated, and meanwhile, fine particles of the oil sludge and residues of sulfonation reaction have certain plugging and profile control effects. Compared with the prior art, the oil sludge profile control and displacement agent provided by the invention can effectively reduce the oil-water interfacial tension on the premise of similar profile control performance; and under the conditions of the same usage amount and the same oil reservoir, the crude oil recovery rate can be increased by 5%.

The invention discloses a three-sludge treatment agent and a preparation method thereof, and belongs to the technical field of oily sludge treatment, the three-sludge treatment agent comprises a treatment agent A and a treatment agent B. The treatment agent B comprises the following raw materials by mass: 30-40 parts of polyacrylamide, 8-10 parts of modified attapulgite clay, 5-6 parts of a compound, and 40-55 parts of deionized water. The modified attapulgite clay is strongly combined with protective films at oil-water and oil-sludge interfaces in the oil sludge through electrostatic force, hydrogen bonds and hydrophobic interaction, the protective films at the oil-water and oil-sludge interfaces are destroyed, oil drops are released and coalesced to form an oil phase, and separation of oil, water and sludge is achieved; positive charges carried in the modified attapulgite clay can be adsorbed to the surfaces of sludge particles with negative charges to be settled and separated out; carboxyl groups contained in the modified hemicellulose can be combined with hydrophilic groups of sophorolipid to form stable mixed micelles, so that the situation that the sophorolipid is easily influenced by the environment to lose efficacy, and oil drops are regathered and precipitated is avoided.

The invention discloses a modified CM square electric power corrugated pipe, belongs to the technical field of electric power pipe processing, and aims to solve the technical problem that the burnthrough resistance and the mechanical strength of a square electric power corrugated pipe in the prior art need to be further improved. The corrugated pipe comprises a square pipe and a plurality of corrugated rings arranged outside the square pipe, the square pipe and the corrugated rings are made of a modified CM material, siloxane-enhanced modified chlorinated polyethylene rubber and chlorinated polyvinyl chloride are combined to form a mixed matrix, and the mixed matrix is enhanced by using a composite filler composed of modified inorganic powder and modified glass beads. The tensile property and the impact resistance of the modified CM square electric power corrugated pipe are effectively enhanced, the burn-through resistance and the low temperature resistance of the material are improved, and the modified CM square electric power corrugated pipe is more convenient and more advantageous in practical application by optimizing the structure of the electric power corrugated pipe.

The invention relates to the technical field of electrodeposited nickel production, and provides an electrodeposited nickel pore inhibition adding composition which can simultaneously solve the technical problems of pores, acid mist and surface quality in the electrodeposited nickel production process. The composition is prepared from the following components in parts by weight: 0.03 to 0.08 part of anionic surfactant; 0.1 to 0.2 part of a nonionic surfactant; 0.01 to 0.03 part of a hydrogen inhibiting agent; and 1-5 parts of a grain refiner.

The invention discloses a preparation method of a novel viscosity reducer for CO2 displacement or huff and puff, which comprises the following steps: dispersing acidolysis waxy corn starch in a mixed solution of dimethylformamide and pyridine, activating for 1 hour in a 75 DEG C water bath and under stirring conditions, adding a certain amount of benzene sulfonyl chloride, reacting for 2 hours, reducing the temperature to 40 DEG C, continuously adding long-chain alkyl acyl chloride, reacting for 2 hours, cooling to 40 DEG C, filtering, washing, and drying to obtain the viscosity reducer for CO2 displacement or huff and puff. Raising the temperature to 75 DEG C, reacting for 2 hours, and precipitating with a large amount of water to obtain modified starch complex ester; and then adding the mixed aromatic hydrocarbon and the small molecular alcohol ether, and stirring and mixing to obtain the viscosity reducer. According to the invention, through the synergistic effect of the agents, the viscosity reduction performance of the product on thick oil is effectively improved.

The invention relates to the technical field of oil field yield increase and transformation, in particular to environment-friendly biological blockage removal liquid and application thereof, and aims to solve the problem that a current biological blockage removal product can only remove organic blockage. The environment-friendly biological unblocking liquid provided by the invention is prepared from the following components in percentage by mass: 2-5% of biological enzyme, 1-5% of surfactant, 1-5% of pH (Potential of Hydrogen) regulator and the balance of water. 1%-3% of a biological enzyme stabilizer; 3-5% of a chelating agent; 0.5%-1% of a surfactant; 0.5%-1% of a dispersion suspending agent; and the balance of water. The biological blockage removal liquid provided by the invention can effectively remove organic blockage of a stratum caused by wax and asphaltene precipitates, so that crude oil is released from the surfaces of rock particles, the flowing of the crude oil in pores of the stratum is improved by changing the wetting state of rock, and inorganic blockage is removed through permeation dispersion and chelation solubilization effects, so that the mechanical property of the stratum is improved. Mixed scales formed by mutual deposition of inorganic scales and organic matters (wax and asphaltene) are effectively removed, and the requirement for plugging removal of a complex scaling reservoir of an oil well is met.

The invention discloses a water injection well depressurization and augmented injection agent and a preparation method thereof, and relates to the technical field of augmented injection agent materials. The pressure-reducing and injection-increasing agent for the water injection well comprises the following raw materials in parts by weight: 50-60 parts of a betaine type ampholytic surfactant, 10-15 parts of a nonionic surfactant, 20-30 parts of a quaternary ammonium salt surfactant, 3-5 parts of a scale inhibitor, 2-3 parts of a stabilizer and 150 parts of deionized water. The preparation method comprises the following steps: preparing a first-generation polymer from urotropine and tromethamine, then reacting the first-generation polymer with epoxy chloropropane to prepare a graft polymer, and finally reacting the graft polymer with hexadecyl dimethyl tertiary amine to prepare the quaternary ammonium salt surfactant. The water injection well depressurization and augmented injection agent prepared by the invention has the characteristics of large unblocking radius, good depressurization and augmented injection effects and the like.

The invention belongs to the technical field of oil-gas field development, and particularly relates to a foaming agent and a synthesis method and application thereof. The synthesis method comprises the following steps: adding 1-amino-3, 6, 9, 12, 15, 18-hexaoxaheneicosan-21-acid and ethanol into a high-pressure reaction kettle, stirring and dissolving, adding 4-(2-bromoethyl) sodium benzenesulfonate, continuously stirring, adjusting the pH value to 8-9 by using sodium hydroxide, heating and preserving heat, and adjusting the pH value to 8-9 by using sodium hydroxide during the period; and adding bromotetradecane into the solution, heating and refluxing, adjusting the pH value to 8-9 by using sodium hydroxide during heating and refluxing, carrying out reduced pressure distillation to obtain a viscous solid, and recrystallizing by using normal hexane to obtain a product, namely the foaming agent. The foaming agent provided by the invention has the advantages of strong foaming power, good stability and low interfacial tension.

The present invention discloses an ultra-small-sized active nanofluid, which is composed of 0.05-0.2wt% of ultra-small-sized active nano-silicon dots and water. A method for preparing an ultra-small-sized active nanofluid comprises (1) preparing an ultra-small-sized active nano-silicon dot solid powder; (2) dissolving the ultra-small-sized active nano-silicon dot solid powder in water to prepare a mother liquor; (3) adding water to the mother liquor under stirring conditions to dilute it to a concentration of 0.05-0.2wt%. The ultra-small-sized active nanofluid is used as an oil displacement agent for low permeability reservoirs. The present invention has the following beneficial effects: (1) high compatibility with nano-micro pore throats of low permeability reservoirs, easy to enter nano-micro pore throats, and little damage to pore throats; (2) high interfacial activity, which can significantly reduce the oil-water interfacial tension and improve the recovery rate of low permeability reservoirs; (3) high oil film stripping efficiency; (4) environmentally friendly, self-dispersible, and easy to prepare.

The invention relates to the technical field of pesticide preparations, and provides a pyriproxyfen-containing nano-emulsion and a preparation method thereof, and the pyriproxyfen-containing nano-emulsion comprises pyriproxyfen, an emulsifier, a thickener, water and an organic solvent. According to the pyriproxyfen-containing nano-emulsion provided by the invention, the nonionic emulsifier with a relatively high HLB (Hydrophile-Lipophile Balance) value and the lipophilic emulsifier with a relatively low HLB value are compounded, so that a mixed adsorption layer can be formed on an oil-water interface, the interfacial tension is effectively reduced, and an oil phase and a water phase are more easily mixed to form the stable nano-emulsion; the strength of an interfacial film of emulsion drops in the nano-emulsion can be improved, so that the external factor resistance of the nano-emulsion is improved, the phenomena of layering, demulsification and the like of the nano-emulsion in the storage process are not easy to occur, and the long-term stability of the emulsion is improved; besides, release and absorption of pyriproxyfen in the nano-emulsion can be optimized, so that the nano-emulsion shows a relatively high diffusion rate, and a relatively good insecticidal effect is more easily exerted.

The invention relates to the technical field of safety helmets, in particular to a composite material for a safety helmet, a preparation method of the composite material and the safety helmet. The composite material for the safety helmet is prepared from the following raw materials in parts by weight: 22 to 27 parts of unsaturated polyester, 4 to 6 parts of low-profile shrinking agent, 0.4 to 0.8 part of high-activity initiator, 1.6 to 2.4 parts of internal release agent, 0.2 to 0.6 part of thickening agent, 25 to 35 parts of flame retardant, 25 to 35 parts of glass fiber, 0 to 5 parts of internal coloring pigment and 2 to 6 parts of auxiliary agent. The safety helmet has the advantage that the heat resistance and the production efficiency of the safety helmet are improved.

The invention discloses a thick oil emulsifying viscosity reducer composition which comprises alkyl amide propyl hydroxy sulfobetaine, a quaternary ammonium salt compound containing tertiary amine and hydroxyl and water, and the content of the alkyl amide propyl hydroxy sulfobetaine is 10%-40%, preferably 25%-30%, the content of the quaternary ammonium salt compound containing tertiary amine and hydroxyl is 10%-40%, preferably 25%-30%, and the content of the quaternary ammonium salt compound containing tertiary amine and hydroxyl is 10%-40%. 3%-15%, preferably 8%-10%, of a quaternary ammonium salt compound containing tertiary amine and hydroxyl. The thick oil emulsifying viscosity reducer with strong foaming performance provided by the invention can emulsify thick oil to form an oil-in-water emulsion, so that the viscosity of the thick oil is obviously reduced, and the fluidity of the thick oil is improved; and the viscosity reducer has good foaming performance and foam stabilizing performance, can effectively block high-permeability pore channels, reduces the water channeling degree, and improves the sweep efficiency of the viscosity reducer, thereby improving the recovery rate of heavy oil.

The invention discloses rose essential oil water-based bi-component electrostatic spraying solid-color finish paint and a preparation method thereof. The rose essential oil water-based bi-component electrostatic spraying solid-color finish paint comprises a component A and a component B, the component A is prepared from the following components in parts by weight: 30 to 40 parts of waterborne hydroxyl polyurethane emulsion; 15 to 25 parts by weight of deionized water; 15-20 parts by weight of an inorganic pigment; 1-2 parts by weight of a dispersant; 0.5-1 part by weight of a leveling agent; 0.5-1 part by weight of a preservative; 0.5-1 part by weight of rose essential oil; the component B is prepared from 10 to 15 parts by weight of polyisocyanate; and 2-10 parts by weight of propylene glycol methyl ether acetate. According to the invention, the inner layer is a polymer (PEG or PLGA), and has good slow release property and volatile protection effect; the middle layer is an intelligent response layer and can adjust the release rate of the essential oil according to external stimulation; the outer layer is an inorganic protective layer such as silicon dioxide, so that the mechanical strength and stability of the microcapsule are improved.

The invention belongs to the technical field of talc, and provides a method for detecting fluorescent substances in talc raw ore, which comprises the following steps: S1, carrying out ball milling on the talc raw ore in a ball mill, sieving to obtain sieved powder, and adding deionized water into the sieved powder to obtain slurry; s2, adding the slurry into the mixture to enable the pH value of the slurry to be 5, stirring, and standing in a water bath for 2-3 hours to obtain a first precipitate; s3, adding a thiourea-ascorbic acid solution into the first precipitate to obtain a second precipitate; and S4, carrying out secondary ball milling on the second precipitate, and spreading the second precipitate in an enamel plate to detect whether the talc raw ore contains the fluorescent substances or not. The hydrochloric acid can dissolve quartz and mica to avoid generation of background fluorescence or quenching effect, and the nonionic surfactant polyethylene glycol can be adsorbed on the surface of the mineral to reduce interfacial tension, so that the hydrochloric acid is easier to infiltrate tiny pores, the pit defect caused by local over-corrosion is reduced, the pickling uniformity is improved, and the detection sensitivity is improved.