26results about How to "Reduce interfacial tension" patented technology

This invention relates to an insulating oil and an oil-paper insulation system containing superhydrophobic nanoparticles, as well as their preparation method and application, belonging to the field of electrical equipment insulation technology. This invention provides an insulating oil containing superhydrophobic nanoparticles, wherein the superhydrophobic nanoparticles are silane-modified nanoparticles, and the nanoparticles include at least one of SiO2, TiO2, and h-BN; the insulating oil includes at least one of mineral insulating oil, synthetic insulating oil, and natural ester insulating oil. This invention achieves the superhydrophobicity of the nanoparticles and good compatibility with the oil phase through silane modification. Adding silane-modified nanoparticles to the insulating oil effectively reduces the water content of the insulating oil and optimizes the interfacial performance of the oil-paper. Combined with the low-temperature, high-efficiency, and uniform rapid impregnation process of this invention, the overall electrical performance and service life of the oil-paper insulation system are significantly improved.

This invention provides a method for preparing a high-salinity zinc oxide-resistant nanofluid mediated by Halomonas sp. and its application in enhancing oil recovery. Specifically, it includes: a Halomonas sp. strain CDH-2, with accession number CCTCC NO: M 2025786, which can rapidly grow in high-concentration salt solutions and produce salt-resistant extracellular metabolites. Fermenting and culturing CDH-2 under high-salt conditions yields a fermentation broth with a surface tension below 30 mN / m. Mixing and culturing the obtained fermentation broth with a metal precursor solution yields a high-salinity-resistant metal nanofluid. The resulting metal nanofluid maintains good stable dispersibility in high-salinity water and effectively reduces oil-water interfacial tension. It alters the wettability of oil-wetting surfaces, emulsifies and disperses crude oil, and reduces crude oil viscosity. Therefore, it can be used as an enhanced oil recovery agent in high-salt reservoirs and is widely applied in oilfield flooding, well huff and puff, and heavy oil viscosity reduction.

This invention relates to the field of health food technology, specifically to a method for preparing a tea oil-based paste and its beverage. This invention develops a tea oil-based paste that can be directly mixed with water. By compounding multiple components such as protein, polysaccharides, and curcumin, and using high-pressure homogenization technology to construct a stable tea oil dispersion system, it significantly improves the problems of oil separation and greasy taste in tea oil beverages. The unsaturated fatty acids and natural antioxidants abundant in tea oil in this invention optimize the nutritional structure of the beverage from both fatty acid composition and functional activity perspectives. After mixing the tea oil-based paste with water, a tea oil-based instant beverage with both nutritional value and good mixing properties can be obtained, aligning with the modern consumer market trend of healthier, more functional, and more convenient beverages.

This invention relates to the field of reinforcement materials technology, specifically to reactive low-temperature reinforcement materials for mining, their preparation methods, and applications. The reactive low-temperature reinforcement material for mining comprises component A and component B. Component A consists of polyester polyol, polyether polyol, silane coupling agent, and catalyst; component B consists of prepolymer and additives. The prepolymer is obtained by reacting polyether polyol b with polymethylene polyphenyl polyisocyanate. Polyether polyol b has a functionality of 3.1 and a hydroxyl value of 207 mg KOH / g, and is a polyether polyol polymerized with propylene oxide using maltitol, trimethylolpropane, hydroquinone, and triethylene glycol as initiators. The material prepared by this invention is primarily reactive in structure and flame-retardant, avoiding the impact of adding large amounts of additive flame retardants on material strength. The resulting material exhibits high compressive strength, low internal heat of reaction, and good flame-retardant properties.

The present application relates to oil and gas field development and environmental protection technical field, especially an aging oil demulsification treatment method, comprising: mixing fly ash and sodium hydroxide, then calcining, acid leaching, then mixing with oily sludge and ferroferric oxide, reduction reaction, mixing the reduction reaction product with 3-mercaptopropyl triethoxysilane, modification reaction, to obtain magnetic adsorbent; mixing aging oil, partial phosphate and water, stirring, standing and separating, to obtain pretreated aging oil; adding magnetic adsorbent, complexing agent, wetting reverse agent and demulsifier to the pretreated aging oil, stirring, then microwave irradiation treatment, magnetic separation, vortex separation and centrifugal dewatering, to obtain purified oil. The present application removes FeS particles by magnetic adsorbent, combines with multi-assistant component synergistic demulsification and multi-field coupling physical separation, destroys the stable emulsification system of aging oil, and the process is efficient, suitable for industrial demulsification treatment of high stability aging oil.

The application provides a modified polypropylene material and a preparation method thereof, a modified polypropylene film and an oil-immersed capacitor. The preparation method of the modified polypropylene material comprises the following steps: mixing and soaking an antioxidant 1010 and natural ester insulating oil with a polypropylene material to obtain the modified polypropylene material; wherein the mass of the antioxidant 1010 is 0.1%-1% of the mass of the natural ester insulating oil. The modified polypropylene material prepared by the above method has at least the advantages of good compatibility with the natural ester insulating oil, high AC breakdown strength, high tensile strength and high elongation at break.

This invention relates to the field of oilfield chemistry, and discloses a fracturing fluid drag-reducing agent composition, its preparation method, and its application. The drag-reducing agent composition comprises cis-15-tetracosenoic acid and a polymer; the polymer comprises polymer A and polymer B, polymer A comprising structural unit A from formula (1), and polymer B comprising structural unit B from formula (2); formula (1); formula (2); wherein R1 is substituted or unsubstituted C 12 -C 20 R1 is an alkyl group; R2 is an unsubstituted C1-C4 alkyl group; X is selected from positive integers from 6 to 14; R3 is H or a C1-C3 alkyl group. The drag-reducing agent composition can maintain drag-reducing performance and improve oil recovery over a wide temperature range.

This invention relates to the field of oilfield chemical technology, and discloses a gemini surfactant, its preparation method, and its application. The gemini surfactant comprises the structure shown in Formula I, where R is a C1-C8 alkyl group or a C6-C8 aryl group; Y... ‑ SO3 ‑ M + The ions are alkali metal ions or alkaline earth metal ions; m = 1-30; n = 1-15. The gemini surfactant of this invention can be used as a viscosity reducer for heavy oil, exhibiting strong viscosity-reducing ability. Through the effective increase of the strength of the oil-water interface film via polyoxyethylene and polyoxypropylene segments, it has a good emulsifying effect, which is beneficial for the migration of oil-water emulsions in rock pores, expanding the swept area, significantly reducing residual oil saturation, and resulting in good oil displacement effect.

The invention belongs to the technical field of food science and colloidal chemistry, and relates to zein-OSA starch-sodium caseinate ternary composite Pickering particles as well as a preparation method and application of an emulsion of the zein-OSA starch-sodium caseinate ternary composite Pickering particles. The ternary composite particle is formed by self-assembly of zein, OSA starch and sodium caseinate, and has a high zeta potential absolute value and optimal interface adsorption performance. When the particles are used for stabilizing an oil-water emulsion, the interfacial tension can be remarkably reduced, the droplet distribution is improved, and the storage stability is enhanced. The prepared emulsion is suitable for a food emulsification system and a bioactive substance delivery system, and has the advantages of being natural, safe, high in stability and good in industrialization prospect.

This invention relates to the field of oilfield development technology, specifically to a high-temperature resistant oil displacement foaming agent, its preparation method, and its application. The method involves first preparing a main agent solution containing a high-temperature resistant additive and a main agent, then adding a foam stabilizer for compounding, and finally maturing to obtain the high-temperature resistant oil displacement foaming agent. The main agent includes alkyl aryl sulfonate derivatives, the high-temperature resistant additive is an acrylamide derivative, a styrene derivative, or an organophosphonate, and the foam stabilizer is modified guar gum. The compounding temperature is 120-150℃, the reaction pressure is 0.3-0.5 MPa, and the time is 4-6 hours. This method achieves synergistic effects among the main foaming agent, modified guar gum, and organophosphonate, forming a stable system. This high-temperature resistant oil displacement foaming agent possesses excellent thermal stability and interfacial activity; it exhibits both excellent high-temperature and salt resistance and efficient foaming, foam stabilizing, and oil displacement effects under ultra-high temperature, ultra-high salinity, and high calcium and magnesium ion environments.

This application provides a novel lipopeptide molecule, its preparation method, and its applications. The novel lipopeptide molecule of this application possesses ultra-low interfacial tension, surface tension, and extremely strong wetting reversal properties. Compared with naturally derived lipopeptide compounds, it exhibits stronger stability and higher surface activity, and has broad application prospects in the field of petroleum extraction.

This invention relates to the field of oilfield chemistry, and discloses an oil displacement composition and an oil displacement agent, as well as their applications. The oil displacement composition comprises component A and component B, wherein component A has the structure shown in Formula I, and component B has the structure shown in Formula II; wherein R1 is a C1-C8 alkanol or a C6-C8 aromatic alcohol; PO is a polyoxypropylene segment; EO is a polyoxyethylene segment; m = 1-30; n = 1-15; Y ‑ R1 is an acid radical ion; M is an alkali metal or alkaline earth metal; R2 is a C1-C8 alkyl group or a C6-C8 aryl group. The oil displacement agent prepared from the oil displacement composition of this invention can be used in chemical oil displacement. This oil displacement agent is an ultra-low interfacial tension spreading type oil displacement agent, with simple composition, good solubility, and cost advantage. R1-O-(PO) m -(EO) n -Y ‑ M + Formula I; R2-OH Formula II.

The application relates to a formic acid tin paste with ultra-low porosity, a preparation method and application thereof, the tin paste is prepared from the following raw materials in percentage by mass: 85-90% of alloy welding powder and 10-15% of a fluxing agent; the fluxing agent comprises the following raw materials in parts by weight: 5-10 parts of an activator, 1-5 parts of a rheological agent, 30-40 parts of an organic solvent, 20-30 parts of a paste forming agent, 3-5 parts of a surfactant and 0.1-0.5 parts of a corrosion inhibitor, the surfactant is a composition of lauryl amphoteric imidazoline surfactant, isomeric tridecanol polyoxyethylene ether and N-vinyl caprolactam, and the activator is a composition of castor oil acid, ethylenediaminetetraacetic acid and succinic acid amine salt. The surfactant and the activator in the fluxing agent of the application synergistically act, ensure the welding surface and the solder cleanliness, improve the wettability and the flowability, reduce the porosity, make the solder uniformly spread and fill, form a high-quality welding spot, and significantly reduce the tin paste porosity.

The application discloses a tackifier, a preparation method of the tackifier, a composite plug oil displacement agent and an enhanced oil recovery method. The tackifier contains structural unit A, structural unit B, structural unit C and structural unit D, and the mass ratio of the structural unit A, the structural unit B, the structural unit C and the structural unit D is (2000-20000):(2000-40000):(4000-60000):(6000-100000), n is 1-15, m is 1-20, and the viscosity average molecular weight of the tackifier is 45-50 million. The tackifier has the following advantages: under the condition of a temperature of 60-70 DEG C and a salinity of 10000 mg / L, the viscosity of a polymer solution is greater than 100 mPa s; when the concentration of the polymer solution is 1000 mg / L, the surface tension is less than 40 mN / m, the tackifier has the function of emulsifying and dispersing crude oil, and the oil displacement efficiency of a physical model is increased by more than 12%.

This invention relates to the field of advanced petrochemical new materials technology, and discloses a luminescent composite material, its preparation method, and its application. The composite material comprises the following components: homopolymer polypropylene, polybutylene succinate, a compatibility modification system, double-modified rare-earth strontium aluminate luminescent powder, dispersant, antioxidant, weathering agent, toughening agent, nucleating agent, and silane coupling agent. This invention employs a compatibility modification system composed of maleic anhydride-grafted PP-g-PBS copolymer and double-modified nano-montmorillonite. The maleic anhydride-grafted PP-g-PBS copolymer constructs a chemical link between the polypropylene and polybutylene succinate molecular chains through a grafting reaction, reducing the interfacial tension between the two resins. The double-modified nano-montmorillonite, after ionic liquid intercalation and silane grafting treatment, exhibits increased interlayer spacing and improved surface activity, uniformly dispersed in the matrix, and acts as a physical crosslinking point, improving the compatibility of the matrix resin and preventing phase separation.

This invention relates to the field of oilfield chemistry, and discloses a betaine compound, its preparation method, and its application. The betaine compound has the structure shown in Formula I: In Formula I, m = 1-30; n = 1-15; R1 is a C1-C8 carbon chain alcohol or a C6-C8 aromatic alcohol; R2 and R3 are each independently hydrogen or methyl; R4 is a C1-C3 alkylene or hydroxylated alkylene; M ‑ SO3 ‑ or COO ‑ The betaine compound contains a large number of PO groups, increasing the size of the hydrophobic groups. Betaine percolators containing this compound, through the synergistic effect of the PO groups and betaine molecules, transform the active components of crude oil into low-molecular-weight components (such as fatty acids), reducing the interfacial film strength of the betaine and thus improving the deformability of the emulsion. The betaine compound of this invention can be used as a betaine percolator for fracturing in low-permeability reservoirs, further improving oil recovery.

This invention relates to the field of enameled wire production technology, and more particularly to an insulating varnish and enameled wire based on nanocomposite materials. The insulating varnish comprises the following components by weight percentage: polyester resin: 40-60%, amide-imide resin: 15-25%, xylene: 10-25%, N-methylpyrrolidone: 5-15%, nano-silica: 1.0-5.0%, nano-alumina: 0.5-2.0%, fluorinated surfactant: 0.5-2.5%, epoxy resin tackifier: 0.2-2.0%, antioxidant: 0.2-0.5%, and ultraviolet absorber: 0.1-0.5%. This invention significantly improves the mechanical strength, abrasion resistance, and heat resistance of the varnish layer by introducing nano-silica and nano-alumina; improves the wettability and adhesion of the varnish by adding fluorinated surfactant; and enhances the adhesion and durability of the varnish layer by using epoxy resin tackifier.

This invention relates to the field of silicone rubber materials technology, specifically to a wide-temperature-range pressure-heated silicone rubber material for automobiles and its preparation method. The automotive wide-temperature-range pressure-heated silicone rubber material comprises the following raw materials: by weight, 40-60 parts liquid silicone rubber, 30-50 parts phase change energy storage system, 3-8 parts damping reinforcing filler, 2-5 parts antifreeze modifier, 1-3 parts silane coupling agent, 1-3 parts flame retardant synergist, and 0.5-1.5 parts platinum catalyst. The automotive wide-temperature-range pressure-heated silicone rubber material prepared by this invention possesses pressure-triggered self-heating characteristics, along with wide-temperature-range stability, excellent damping and vibration reduction performance, and compliance with safety standards.

The present application belongs to the technical field of groundwater pollution remediation, and particularly relates to a biological remediation composition for remediation of contaminated groundwater, a remediation agent, and a preparation method and application thereof. The biological remediation composition for remediation of contaminated groundwater comprises a composite bacterial flora, a slow-release carrier material, a nutrient slow-release agent, a surfactant, and a stabilizer; the composite bacterial flora is composed of the following bacterial strains: Bacillus subtilis, Pseudomonas putida, Desulfovibrio and Serratia marcescens. The biological remediation composition provided by the present application has high remediation efficiency and improves the removal rate of diesel oil, chlorophenol, and sulfadimethoxine.

This invention relates to the field of polymer materials technology and discloses a high-strength composite plastic sheet and its preparation method. The composite sheet, by weight, comprises 65-75 parts low-density polyethylene, 3-5 parts maleic anhydride-grafted polyethylene, 2-4 parts modified polyethersulfone, and 1-3 parts boron-modified silane, supplemented with antioxidant 1010 and calcium stearate. The modified polyethersulfone is obtained through imidazole functionalization, quaternized alkenyl modification, and free radical graft copolymerization. The boron-modified silane is obtained by dehydration condensation of hydroxyl-terminated polydimethylsiloxane and boric acid. This invention uses a casting process to prepare the finished product. The multi-component synergistic construction of a rigid-reinforced and flexible-toughened multi-level structure improves the sheet's mechanical strength and impact toughness, while also imparting excellent long-lasting antibacterial properties. The preparation process is controllable and suitable for industrial-scale production.

The application discloses a skin-nourishing powder cream composition and a preparation method thereof, and the skin-nourishing powder cream composition is a water-in-oil emulsion system, and contains, in parts by weight, 22.5-62.5 parts of an oil phase component, 4-14 parts of a powder component, 15-50 parts of an aqueous phase component and 0.1-2 parts of a skin conditioner; and the application uses high-content natural plant oils such as jojoba seed oil and olive fruit oil and high-quality emollient esters such as caprylic acid / capric acid triglyceride as core oil phases, thereby replacing a large amount of mineral oil or volatile silicone oil used in traditional powder creams. The plant oils are rich in unsaturated fatty acids and antioxidant components, and can provide long-lasting moisturizing, repair the sebum membrane and relieve dryness for the skin.

The application relates to the technical field of fire extinguishing agents, and particularly discloses a foam fire extinguishing agent compounded by anionic Gemini surfactants and a preparation method thereof, which comprises the following components in percentage by mass: 5-15% of anionic Gemini surfactants; 0.5-3% of fluorocarbon surfactants; 3-9% of hydrophilic monomer oligomers; 2-5% of zwitterionic surfactants; 1.0-2.5% of nonionic surfactants; 3-12% of anti-burning agents; 2-7% of cosolvents; and the balance of water. The biodegradable short-chain fluorocarbon surfactants are precisely compounded with anionic Gemini surfactants of specific structures, hydrophilic monomer oligomers and the like, and a preparation process of step-by-step construction is adopted, so that the environmental friendliness is remarkably improved, the performance of the fire extinguishing agent is comprehensively broken through, the water film on the oil surface is ensured to be rapidly spread and rapidly extinguished, the foam covering layer is endowed with super-strong mechanical stability and thermal stability, the anti-reignition time is greatly prolonged, and the purposes of efficient fire extinguishing, long-lasting anti-burning and environmental friendliness are finally achieved.

The invention provides a device and a method for preparing a surfactant containing nano bubbles and electronic equipment, and belongs to the technical field of nano bubble preparation. The device comprises: a generation system comprising a reaction vessel for preparing the surfactant containing the nano-bubbles; the temperature control system is connected with the generation system and used for maintaining the temperature of the generation system; the gas storage system is connected with the generation system and is used for providing gas and pressure required by the generation system; the ultrasonic system is connected with the generating system and used for providing ultrasonic vibration for the generating system; and the control system is configured to store preparation steps and control actions of the temperature control system, the gas storage system and the ultrasonic system based on the preparation steps. According to the invention, the interfacial tension between the displacement system and crude oil can be greatly reduced only by using a small amount of surfactant, and when the displacement system with ultralow interfacial tension is used for oil reservoir development, the oil recovery efficiency can be improved and the development cost can be reduced.

The application discloses a kind of fiber reinforced waterproof material for electronic backplane and its manufacturing process, it is related to the technical field of polyester composite material.In the present application, by blending flame-retardant glass fiber with PET resin and other additives, a glass fiber / PET composite material is obtained through melting, extrusion, injection molding and other processes, then a silicon oxide target is used to deposit a silicon oxide film on the surface of the glass fiber / PET composite material through magnetron sputtering, and finally a fiber reinforced waterproof material is obtained.The flame-retardant glass fiber has polycarbonate segments on its surface, which improves the compatibility of the glass fiber and the PET resin, and also disperses the stress when the fiber reinforced waterproof material is under stress, improving the mechanical properties of the material.The silicon oxide film can effectively prevent water and water vapor from penetrating, and helps to improve the waterproofness of the material.

The invention belongs to the field of cable materials, and discloses a silicone rubber cable material and a preparation method thereof. The high-performance silicone rubber is prepared from the following components in parts by weight: 60-80 parts of methyl vinyl silicone rubber, 20-40 parts of phenyl silicone rubber, 30-50 parts of magnesium hydroxide, 20-30 parts of aluminum hydroxide, 5-10 parts of nano montmorillonite, 8-15 parts of fluororubber powder, 3-8 parts of titanate coupling agent modified zinc oxide, 1-3 parts of a silane coupling agent, 2-5 parts of a vulcanizing agent, 1-2 parts of an anti-aging agent and 4-8 parts of stearic acid modified sepiolite. The composite material is prepared from the following components in parts by weight: 2-5 parts of zinc hydroxystannate, 3-6 parts of silicon nitride, 2-5 parts of blended powder, 4-6 parts of maleic anhydride grafted polyolefin elastomer modified calcium carbonate and 3-5 parts of montmorillonite / graphene composite powder. The problems that in the prior art, flame retardance and corrosion resistance of a silicone rubber cable material are difficult to synergistically improve, and inorganic filler compatibility is poor are solved.

The application provides an emulsified asphalt without sticking to a wheel and a preparation process thereof. High molecular polymers such as SBS, SEBS and PE are introduced into the asphalt as modifiers, so that the high temperature stability and mechanical properties of the asphalt are significantly improved, and the rapid demulsification requirement is met. Meanwhile, a filler is introduced to enhance the wear resistance and durability, and a stabilizer and an emulsifier are matched to prevent the emulsion from being stratified and ensure the mixing stability. The prepared emulsified asphalt has the characteristics of rapid demulsification, high temperature stability, excellent mechanical properties and non-sticking to a wheel, and the construction efficiency is improved.