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130 results about "Dodecylbenzene" patented technology

Dodecylbenzene is an organic compound with the formula C₁₂H₂₅C₆H₅.Dodecylbenzene is a colorless liquid with a weak oily odor. Floats on water. This colourless waxy solid consists of a dodecyl group (C₁₂H₂₅) attached to a phenyl group (C₆H₅). Dodecylbenzene is a precursor to sodium dodecylbenzenesulfonate, a surfactant that is a key ingredient of household laundry detergents, such as detergent powder.

High-toughness woven ceramic material and preparation method thereof

The invention relates to the technical field of woven ceramic materials, in particular to a high-toughness woven ceramic material and a preparation method thereof, and the high-toughness woven ceramic material comprises the following raw materials in parts by weight: 30-40 parts of diopside, 20-30 parts of quartz, 10-15 parts of silicon carbide, 7-11 parts of boron nitride, 6-10 parts of a modified carbon nanotube reblended admixture, 5-7 parts of an intercalated synergistic supplement, 4-6 parts of aluminum oxide, 10-15 parts of water and 3-5 parts of a sodium dodecyl benzene sulfonate solution. According to the high-toughness woven ceramic material, the diopside is matched with the quartz, the silicon carbide, the boron nitride and the aluminum oxide raw materials, the blending and matching effects of the raw materials are optimized by improving the interfacial activity of the sodium dodecyl benzene sulfonate solution, and meanwhile, the added modified carbon nanotube reblended admixture and the intercalated synergistic supplement are used for carrying out coordination and synergistic effects, so that the high-toughness woven ceramic material is prepared. The durable usability of the product is enhanced, the fracture toughness of the product is excellent, the scrubbing-resistant and corrosion-resistant stability effects are remarkable, and the performance improvement effect of the product is remarkable.
Owner:MYINGFA CERAMIC CO LTD DEHUA FUJIAN

Shale oil carbon dioxide flooding surfactant and preparation method thereof

The invention discloses a shale oil carbon dioxide flooding surfactant and a preparation method thereof, and belongs to the technical field of surfactants. The rock oil carbon dioxide flooding surfactant is prepared from the following components in parts by weight: 100 parts of water, 40 to 60 parts of fluorine-containing copolymer, 15 to 25 parts of sodium dodecyl benzene sulfonate, 10 to 20 parts of polyoxyethylene ether surfactant containing siloxy and 5 to 10 parts of nanoparticles. The fluorine-containing copolymer, the sodium dodecyl benzene sulfonate, the siloxy-containing polyoxyethylene ether surfactant and the nanoparticles are compounded, so that on one hand, the surfactant has relatively high salt tolerance and temperature tolerance so as to adapt to the environment of a shale oil reservoir; on the other hand, the surface activity is synergistically improved, the interfacial tension is reduced, the rock surface wettability is changed, and the system stability is enhanced, so that higher recovery efficiency is realized.
Owner:DESHI ENERGY TECH GRP CO LTD

Preparation method of nitrile rubber with high oil resistance

ActiveCN119529186AImprove Primary UtilizationReduction of recycling energy consumptionPolymer scienceAcrylonitrile
The invention discloses a preparation method of high-oil-resistance nitrile rubber, which comprises the following components in parts by weight: 275 parts of soft water, 50-55 parts of butadiene and 45-50 parts of acrylonitrile, wherein the addition amount of butadiene and acrylonitrile is 100 parts; the emulsifier is a dodecylbenzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt composite system, and the dosage of the emulsifier is 2.5-5 parts; the initiator adopts persulfate, and the use amount of the initiator is 0.1-0.5 part; 0.1 part of triethanolamine; the preparation method comprises the following steps: synthesizing butyronitrile rubber cement by adopting an intermittent feeding mode of replenishing a molecular weight regulator in batches and a thermal polymerization process, adding a terminating agent and an anti-aging agent, and degassing, condensing, washing and drying to obtain a high-strength butyronitrile rubber product. The nitrile rubber has the Mooney viscosity ML (1 + 4) 100 DEG C of 90-120, the tensile strength of more than or equal to 27.5 MPa and the elongation at break of more than or equal to 450%, and can meet the application requirements in the fields of automobiles, aerospace, sealing washers and the like.
Owner:CHINA NAT PETROLEUM CORP

High-temperature stabilizer for high-density oil-based drilling fluid as well as preparation method and application of high-temperature stabilizer

The invention provides a high-temperature stabilizer for high-density oil-based drilling fluid. The high-temperature stabilizer is prepared from mixed components, the mixed component comprises dodecylbenzene sulfonic acid, an alkaline compound, water, a water-in-oil emulsifier and an oil phase component; the alkaline compound is polybasic alkali and / or an oxide corresponding to the polybasic alkali. Compared with the prior art, the dodecylbenzene sulfonate contained in the high-temperature stabilizer for the high-density oil-based drilling fluid belongs to multi-element metal soap salt, more than two hydrocarbon chains are contained in a molecule, and the high-temperature stabilizer is more oleophylic, is suitable for being used in a W / O type oil-based drilling fluid system, and has the functions of high temperature resistance, wetting and tackifying; other auxiliary emulsion, wetting agent and tackifier do not need to be added in a preparation system, preparation is simple, field operation is convenient, and cost reduction and efficiency improvement are facilitated.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +2

6% ginkgolic acid microemulsion and application thereof

The invention discloses a 6% ginkgolic acid microemulsion and application thereof, and belongs to the technical field of biological control. The ginkgolic acid microemulsion is prepared from the following raw materials in percentage by mass: 6% of ginkgolic acid, 2% of absolute ethyl alcohol, 2% of n-butyl alcohol, 10% of OP10 (alkylphenol polyoxyethylene ether), 10% of DBS-Ca (calcium dodecyl benzene sulfonate) and 70% of distilled water. The 6% ginkgolic acid microemulsion is developed according to the formula. When the 6% ginkgolic acid microemulsion is diluted by 200 times and 100 times to be sprayed, the prevention and control effects of the pepper anthracnose are 76.47% and 75.73%, the prevention and control effects of the 6% ginkgolic acid microemulsion are equivalent to those of chemical pesticides, and meanwhile the 6% ginkgolic acid microemulsion has a good prevention and control effect on various plant pathogenic fungi.
Owner:GUIZHOU UNIV

Self-early-warning and self-repairing integrated coating and preparation method

The invention discloses a self-early-warning and self-repairing integrated coating, and particularly relates to the field of coatings, the self-early-warning and self-repairing integrated coating comprises a capsule D, a capsule A and a PDMS matrix which are mixed according to the mass ratio of 1: 1: 10; the capsule D is obtained by mixing an electron donor D compound solution, an HDI solution and a continuous phase solution, emulsifying, performing ice bath, preserving heat, filtering, washing and drying, and the electron donor D is a carbazole molecule or a dibenzothiophene molecule; the capsule A is obtained by mixing an electron acceptor A compound solution, an HDI solution and a continuous phase solution, emulsifying, performing ice bath, preserving heat, filtering, washing and drying, and the electron acceptor A is a 1, 2, 4, 5-tetracyanobenzene molecule; the continuous phase solution is a mixed aqueous solution of urea, resorcinol, ammonium chloride and sodium dodecyl benzene sulfonate, the compatibility problem of self-early warning and self-repairing factors is solved, light and color response factors with the characteristics of timeliness, accuracy and universality are developed, timely early warning is achieved when the coating is damaged, misjudgment is not likely to happen, and the self-repairing effect is achieved while self-early warning is conducted.
Owner:YANCHENG INST OF TECH

Preparation method of super-hydrophilic photo-thermal carbon fiber cloth and water photovoltaic power generation sheet

The invention belongs to the technical field of photo-thermal water and power cogeneration, and particularly relates to a preparation method of super-hydrophilic photo-thermal carbon fiber cloth and a water photovoltaic power generation sheet. The preparation method comprises the following steps: dispersing photo-thermal conversion particles into a sodium dodecylbenzene sulfonate solution to obtain a photo-thermal conversion coating, soaking carbon fiber cloth into the photo-thermal conversion coating to enable the photo-thermal conversion particles to be attached to the carbon fiber cloth to obtain the photo-thermal carbon fiber cloth, and drying the photo-thermal carbon fiber cloth to obtain the photo-thermal carbon fiber cloth. And then the surface of the photo-thermal carbon fiber cloth is coated with a thermoplastic polyurethane solution to improve the hydrophilic property of the photo-thermal carbon fiber cloth, and therefore the super-hydrophilic carbon fiber cloth with the high photo-thermal conversion performance is prepared. In the photo-thermal evaporation process, different photo-thermal conversion particle loading capacities of the carbon fiber cloth present different evaporation rates, different thermoplastic polyurethane solution brushing times of the carbon fiber cloth present different contact angles and interface evaporation temperatures, the generating capacity of the water photovoltaic power generation sheet is tested, and finally efficient photo-thermal water-power cogeneration application is achieved.
Owner:NANCHANG UNIV

Oil-water separating agent for oil field and preparation method of oil-water separating agent

The invention discloses an oil-water separating agent for an oil field, and relates to the technical field of oilfield chemistry. The invention discloses a water-based composite flocculant, which is prepared from the following raw materials in parts by weight: 150 to 250 parts of polyaluminum chloride, 80 to 120 parts of polyacrylamide, 50 to 100 parts of modified starch, 30 to 60 parts of sodium dodecyl benzene sulfonate, 20 to 40 parts of polyoxyethylene hydrophobic sorbitol fatty acid ester, 10 to 30 parts of simethicone, 5 to 15 parts of sodium hydroxide, 3 to 10 parts of hydrochloric acid and 300 to 500 parts of deionized water. The invention further discloses a preparation method of the oil-water separating agent for the oil field, the oil-water separating agent for the oil field and the preparation method of the oil-water separating agent remarkably improve the oil-water separating efficiency through raw material proportioning, the problem that a traditional oil-water separating agent is not ideal in separating effect is effectively solved, and the oil-water separating agent is simple in preparation process and low in cost. The oil-water separating agent has the advantages of easily available raw materials and relatively low cost, is beneficial to wide application in oilfield exploitation, reduces the exploitation cost, pays attention to the environmental protection concept in the preparation process, and avoids the generation of harmful byproducts.
Owner:HEILONGJIANG CRESHUS PETROLEUM TECHNOLOGY CO LTD

Biological treatment method for sulfonic acid compound wastewater

The invention discloses a biological treatment method for sulfonic acid compound wastewater, and belongs to the field of biological treatment of sulfonic acid compound wastewater. According to the treatment method, wastewater is sequentially subjected to activation and culture of a sulfonic acid compound degradation solid strain and wastewater biological treatment, the process is easy to operate and efficient in reaction, and sulfonic acid compounds can be degraded. According to the present invention, the sulfonic acid compound degradation bacterial agent is the microbial agent prepared from the Microbacterium esteraromaticum, and the Microbacterium esteraromaticum is preserved in the China General Microbiological Culture Collection Center (CGMCC) on July 25, 2024, and has the preservation number of CGMCC NO.31455; the device can be used for treating sulfonic acid compound wastewater such as o-cresol sulfonic acid, sodium p-toluenesulfonate or sodium dodecyl benzene sulfonate with the inlet water sulfonic acid compound concentration of 1000mg / L. The method disclosed by the invention is used for biologically enhancing a common biological method and widening the application range of biologically treating the sulfonic acid compound wastewater.
Owner:JIANGSU LASON CHEM ENVIRONMENTAL PROTECTION

Preparation method of polyvinyl alcohol / polyaniline / carbon nanotube composite hydrogel based on dodecylbenzene sulfonic acid molecular bridge

The invention discloses a preparation method of polyvinyl alcohol / polyaniline / carbon nanotube composite hydrogel based on a dodecylbenzene sulfonic acid molecular bridge, and relates to the technical field of polymer composite materials and energy storage devices. The invention innovatively provides a'molecular bridge 'strategy, and a highly stable interface structure between PANI and CNTs is constructed in a PVA hydrogel matrix by adopting DBSA as a bifunctional molecule linking agent. Specifically, through the pi-pi stacking effect of one end of a DBSA molecule and CNTs and ionic bonding of the other end of the DBSA molecule and PANI, an active material is stitched to a conductive skeleton on the molecular level, and a highly integrated three-dimensional conductive network is formed. The interface engineering design starting from the molecular level fundamentally solves the problem of structure degradation of PANI in the cycle process, endows the electrode material with good cycle stability, excellent rate capability and enhanced charge storage capability, and also has excellent mechanical flexibility.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY

A composite biological pond cleaning agent containing tea saponin and a preparation method thereof

This invention belongs to the field of biological agents for aquaculture, and discloses a compound biological pond-cleaning agent containing tea saponin and its preparation method. The compound biological pond-cleaning agent of this invention comprises the following components by weight: 3-10 parts tea saponin, 60-70 parts roe beetle root powder, 10-20 parts Buddleja officinalis, 5-10 parts compound microbial powder, 3-8 parts adjuvants, and 10-20 parts carrier; the adjuvant is a mixture of sodium lignin sulfonate and sodium dodecylbenzene sulfonate; the compound microbial powder is a mixture of Bacillus subtilis and photosynthetic bacteria; and the carrier is diatomaceous earth. This invention combines three natural active ingredients—tea saponin, roe beetle root powder, and Buddleja officinalis—with suitable adjuvants and a carrier, which can expand the pond-cleaning range and has good killing or inhibitory effects on harmful organisms such as wild fish, shrimp, crabs, and snails, as well as various pathogens. The pond-cleaning is thorough, and the raw materials are easily degradable, leaving no residue. It is environmentally friendly and has a long-lasting effect, which is of great significance for promoting the green and sustainable development of aquaculture.
Owner:潘培松

Oily liquid absorbing and storing agent

The invention relates to an oily liquid absorbing and storing agent which is selected from one of corn starch and cassava starch. The preparation method comprises the following steps: selecting proper macromolecular resin as a framework material: one or more than one of polypropylene, polystyrene and polymethyl methacrylate; one of benzoyl peroxide, azodiisobutyronitrile and dibenzoyl peroxide is selected; triphenyl phosphate or Lewis acid is commonly used, so that the process of generating free radicals by the initiator can be accelerated; the solvent is one of vinyl benzene, trimethylolpropane triacrylate and dimaleimide; one of sodium dodecyl benzene sulfonate and lauryl sodium sulfate can be selected. The invention also discloses a method.
Owner:SHAANXI HAOTUO ENERGY SAVING TECH CO LTD

Gel-free high-stability positive electrode slurry, and preparation method and application thereof

The application belongs to the field of sodium ion battery materials, and mainly relates to a gel-free high-stability positive electrode slurry as well as a preparation method and application thereof. The positive electrode slurry raw materials comprise: 90-96 parts of sodium iron sulfate, 1-4 parts of a conductive agent, 2-6 parts of a binder, and 0.1-0.5 parts of a combined dispersant; the combined dispersant comprises: a monoester phosphate and a diester phosphate; wherein R in the ester group is one or more of dodecyl, phenyl, octyl, oleyl, polyethylene glycol group, and aminopropyl. The mixed system of the monoester phosphate and the diester phosphate is used as the dispersant, that is, the mixed system has high affinity with iron ions, locks the active metal ions on the particle surface, blocks the side reaction with the solvent, the short chain of the monoester quickly anchors the particle surface, the long chain of the diester extends into the solvent to form steric hindrance, and the double mechanism inhibits agglomeration, thereby improving the dispersibility and stability of the slurry.
Owner:CENT SOUTH UNIV

Surface treating agent as well as preparation method and application thereof

The invention discloses a surface treating agent as well as a preparation method and application thereof, and the surface treating agent is prepared from the following raw materials in parts by weight: 10-40 parts of micron-sized carborundum and 60-90 parts of an organic treating agent, the organic treating agent is prepared from the following raw materials: a silane coupling agent and a surfactant; the silane coupling agent is prepared from at least one of isobutyl triethoxy silane, methyl triethoxy silane, allyl triethoxy silane and butyl acrylate triethoxy silane; the silane coupling agent is prepared from at least one of isobutyl triethoxy silane, methyl triethoxy silane, allyl triethoxy silane and butyl acrylate triethoxy silane; the surfactant is prepared from at least one of sodium dodecyl benzene sulfonate, gamma-aminopropyl trimethoxy silane, epoxy propenyl trimethoxy silane and methyl trimethoxy silane. According to the surface treating agent provided by the invention, the surface treating agent is sprayed to the surface of concrete, so that the wear resistance and cracking resistance of the surface of the concrete are enhanced, a large amount of surface treating agent is saved, and the cost of the concrete is reduced.
Owner:HUNAN CSCEC5B CONCRETE +2

Lightweight sound-insulating rock wool board and preparation method thereof

The present invention relates to the technical field of rock wool thermal insulation materials and proposes a lightweight sound-insulating rock wool board and a preparation method thereof. The lightweight sound-insulating rock wool board comprises the following raw materials in parts by weight: 50-70 parts of basalt, 20-30 parts of slag, 10-15 parts of dolomite, 8-14 parts of fly ash, 16-20 parts of modified hollow glass microspheres, and 15-20 parts of a binder; the modified hollow glass microspheres are hollow glass microspheres modified with a modifier; the modifier comprises isopropyl tri(dodecylbenzenesulfonyl) titanate. The above technical solution solves the problem of poor sound insulation of rock wool boards in related technologies.
Owner:HEBEI KELIN BUILDING MATERIALS CO LTD

Combined inhibitor for reverse flotation magnesium removal of sedimentary phosphorite and method thereof

The invention relates to the technical field of mineral separation technologies, in particular to a combined inhibitor and method for reverse flotation magnesium removal of sedimentary phosphorite, and the combined inhibitor is prepared by compounding the following components in parts by mass: 20-30 parts of aluminum sulfate octadecahydrate, 50-70 parts of tartaric acid and 10-20 parts of citric acid. The method is completed through a technical route of coupling regulation and inhibition of apatite by a combined inhibitor and reinforced separation of calcium and magnesium carbonate minerals by a mixed collecting agent. The method comprises the following steps: removing magnesium through a'one-roughing, one-refining and one-sweeping 'process under the condition that the pH value is 6-7 by combining with a sodium oleate / dodecylbenzene sulfonic acid / 2-ethylhexyl phosphate 2-ethylhexyl ester mixed collecting agent, so as to obtain phosphate concentrate with MgO less than 0.8%, P2O5 more than 29% and recovery rate more than 90%.
Owner:YUNNAN PHOSPHATE CHEM GROUP CORP +1

Iron ore reverse flotation low-temperature collecting agent and preparation method thereof

The invention belongs to the technical field of mineral processing flotation reagents, and particularly relates to an iron ore reverse flotation low-temperature collecting agent and a preparation method thereof, the iron ore reverse flotation low-temperature collecting agent comprises the following raw materials by weight: 60-100 parts of sodium aliphatate, 10-30 parts of MES, 10-30 parts of soybean oleic acid, 5-10 parts of an anionic surfactant, 1-5 parts of sodium dodecyl benzene sulfate, and 5-15 parts of a palm light component. The iron ore reverse flotation low-temperature collecting agent is wide in raw material source, good in stability, simple in manufacturing process and low in production cost; and meanwhile, the low-temperature collecting agent for reverse flotation of the iron ore is high in beneficiation efficiency at low temperature, the grade of obtained fine iron powder is high, and the yield of concentrate is increased. The iron ore reverse flotation low-temperature collecting agent does not cause harm to the environment and human bodies, belongs to a green and environment-friendly collecting agent, and has a wide application prospect.
Owner:HEBEI SHUNJIA MINING PROD TECH CO LTD

Film coating method for improving film coating rate of microbial fertilizer particles

The invention relates to the technical field of microbial fertilizer preparation, and provides a coating method for improving the coating rate of microbial fertilizer particles in order to solve the problem of poor affinity between a hydrophilic material and hydrophobic microbial fertilizer particles and improve the coating rate of the hydrophilic material as a film layer to the microbial fertilizer particles. The fertilizer is composed of a microbial fertilizer particle core layer and a modified film layer coating the outer layer of the fertilizer, and the mass ratio of the core layer to the film layer is 100: (0.5-10). Wherein the core layer can be made of trichoderma harzianum, penicillium baylii or aspergillus niger microbial fertilizer particles; the raw material of the film layer can be composed of the following components: polyvinyl alcohol (PVA), a hydrophilic material (such as starch, glucose, maltose or dextrin) capable of providing glycogen, a surfactant capable of changing the surface tension of water, a wetting agent, a dispersing agent (such as lauryl sodium sulfate, disodium methylene dinaphthalene sulfonate, sodium dodecyl benzene sulfonate or fatty acid salt) and the like. According to the coating method for improving the coating rate of the microbial fertilizer particles, the higher coating rate is achieved, the coated microbial fertilizer further has the longer container life and the higher pressure resistance, the looseness problem is greatly solved, the problems that traditional microbial fertilizer particles are prone to inactivation, breaking and loosening are solved, and the yield of the microbial fertilizer particles is improved. Good popularization and application values are realized.
Owner:QINGDAO UNIV OF SCI & TECH

Flame-retardant and anti-shrinkage coating self-crosslinking lithium battery separator and its molding process

The present invention relates to the field of battery material technology and discloses a flame-retardant, shrinkage-resistant self-crosslinking lithium battery separator and its forming process. The separator comprises a battery base membrane and a coating applied to both sides of the base membrane. The separator comprises the following raw materials by weight: the base membrane comprises 80-120 parts of polypropylene fiber, 5-10 parts of sodium dodecylbenzene sulfonate, and 1-3 parts of polydimethylsiloxane; the coating comprises 10-20 parts of modified silica-coated alumina containing long-chain fatty acids, 80-150 parts of a polyurethane emulsion modified with aminotriethoxysilane, 3-5 parts of polydimethylsiloxane as a defoamer, and 2-4 parts of sodium carboxymethylcellulose as a thickener. The base membrane has a thickness of 10-30 μm, and the coating has a thickness of 3-8 μm. The separator exhibits excellent flame-retardant and shrinkage-resistant properties and can effectively extend the battery life.
Owner:JIANGSU VEIK TECH & MATERIALS CO LTD

Reinforcing agent composition for improving friction performance of No.8 hydraulic transmission oil and application of reinforcing agent composition

The invention belongs to the technical field of lubricating oil, and particularly relates to a reinforcing agent composition for improving the friction performance of No.8 hydraulic transmission oil and application. The reinforcing agent composition is prepared from the following raw materials: ethyl pyrimiphos, 2-amino-2-oxy-1-(3-phenoxy phenyl) ethyl] 2-(4-dodecylbenzene)-3-methyl butyrate, a dispersing agent and base oil A. The invention further discloses a preparation method of the reinforcing agent composition. According to the invention, a compound system of ethylpyrimidinphosphorus and 2-amino-2-oxy-1-(3-phenoxy phenyl) ethyl] 2-(4-dodecyl-phenyl)-3-methylbutyrate is adopted, so that the friction performance is excellent, the friction performance of the hydraulic transmission oil 8 # can be improved, the test requirements of an Allison C-4 paper-based friction bench are met, and the friction performance of the hydraulic transmission oil 8 # is improved. And the device can adapt to different hydraulic transmission oil formula systems.
Owner:PETROCHINA CO LTD

Method for modifying and finishing fabric

The invention discloses a method for modifying and finishing a fabric, which is characterized by comprising the following steps: adjusting the pH value of polyalkyl siloxane hydrosol to 6-7 by using an alkaline agent, finishing the modified fabric by using a padding method, and then washing and drying to prepare the fabric. According to the method for modifying and finishing the fabric, the polyalkyl siloxane hydrosol is adopted for finishing after the fibers are modified, and the polyamide fibers are easy to hydrolyze under an acidic condition, so that the use performance of the fabric is influenced. The pH value of the silicon dioxide sol is adjusted to 6-7, so that rapid condensation of sol particles is not caused, and the fiber strength is not obviously influenced. A mixture of anionic sodium dodecyl benzene sulfonate and nonionic twin-80 is adopted as a surfactant, the strength of sodium dodecyl benzene sulfonate micelles is enhanced, meanwhile, the viscosity of the hydrosol can be effectively reduced, and then the stability of the hydrosol and the uniformity of the particle size are improved.
Owner:WUJIANG FUHUA WEAVING

Eluting agent for repairing petroleum hydrocarbon contaminated soil and two-stage leaching method

The invention relates to the technical field of soil remediation, and discloses an eluting agent for remediation of petroleum hydrocarbon contaminated soil and a two-stage eluting method. The eluting agent comprises an eluting agent A or an eluting agent B, the eluting agent A comprises the following components: sodium carbonate with the concentration of 1.0 to 3.0 g / L, sodium chloride with the concentration of 0.5 to 2.5 g / L, TritonX-100 with the concentration of 0.5 to 2.0 g / L and sodium dodecyl benzene sulfonate with the concentration of 1.5 to 5.5 g / L; according to the two-stage leaching method, two compounded leaching agents are used for treating high-concentration petroleum hydrocarbon contaminated soil through two stages. According to the technical scheme, the environment-friendly effect is achieved, and follow-up bioremediation is facilitated for further treatment of contaminated soil; according to the two-stage leaching method, the leaching agent A and the leaching agent B are adopted, the removal rate of petroleum hydrocarbon in the polluted soil is increased to 95% or above, secondary pollution to the environment is avoided, and the low-carbon and environment-friendly requirements are met.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Application of yttrium salt suspension containing dodecylbenzene sulfonic acid, yttrium oxide mesocrystal and preparation method and application of yttrium oxide mesocrystal

The invention belongs to the technical field of yttrium oxide preparation, and particularly discloses application of yttrium salt suspension containing dodecylbenzene sulfonic acid, yttrium oxide mesocrystal as well as a preparation method and application of the yttrium oxide mesocrystal, and the preparation method comprises the following steps: S1, carrying out hydrothermal reaction on the yttrium salt suspension containing dodecylbenzene sulfonic acid to generate yttrium oxide precursor mesocrystal; and S2, treating the yttrium oxide precursor mesocrystal to obtain the yttrium oxide mesocrystal. Dodecylbenzene sulfonic acid is adopted as a surfactant to be matched with deionized water to prepare the yttrium oxide mesocrystal, the morphology of the yttrium oxide mesocrystal is snowflake-shaped or triangular prism-shaped, the granularity of the yttrium oxide mesocrystal is 0.4-2 microns, and compared with a yttrium oxide material prepared without dodecylbenzene sulfonic acid as the surfactant, the yttrium oxide mesocrystal has the pore diameter of 11.68 nm, the high specific surface area of 31.59 m < 2 > / g and multiple adsorption sites, so that the yttrium oxide mesocrystal has the advantages that the specific surface area of the yttrium oxide mesocrystal is larger than that of the yttrium oxide material prepared without dodecylbenzene sulfonic acid as the surfactant; when the relative pressure (p / p0) is 1, the adsorption performance of the yttrium oxide mesocrystal is high and reaches 59.998 cm < 3 >. G <-1 >.
Owner:SHANGHAI UNIV OF ENG SCI

Antibacterial detergent containing tea saponin and preparation method thereof

The invention relates to the technical field of detergents, in particular to a tea saponin-containing antibacterial detergent and a preparation method thereof. The preparation method comprises the following steps: mixing deionized water, tea saponin, dodecylbenzene sulfonic acid, vanillin, guar gum, glycerol, aromatherapy essential oil, a zeolite silver-loaded antibacterial agent and sodium hydroxide, and granulating to obtain tea saponin-containing antibacterial detergent powder; taking an oxidized starch-gelatin composite gel solution as a capsule inner shell wall material, reacting ethylenediamine tetraacetic acid with chitosan to obtain a chelating agent, mixing the chelating agent with a hydroxypropyl methylcellulose solution to obtain an outer shell wall material, and spraying the outer shell wall material to the surface of the capsule inner shell wall material to obtain a composite capsule shell; and packaging the tea saponin-containing antibacterial detergent powder by using the composite capsule shell to obtain the tea saponin-containing antibacterial detergent. The detergent prepared by the invention is good in foaming ability and strong in decontamination effect, and also has excellent antibacterial performance.
Owner:XINYANG NORMAL UNIVERSITY

Preparation method of carbon nanotube hybrid modified styrene-divinylbenzene copolymer hydrophobic catalyst carrier

The present invention aims to provide a method for preparing a carbon nanotube hybrid modified styrene-divinylbenzene copolymer hydrophobic catalyst carrier. The method for preparing a carbon nanotube hybrid modified styrene-divinylbenzene copolymer hydrophobic catalyst carrier, comprising the following steps: step S1, according to a preset ratio, distilled water, hydroxymethyl cellulose, sodium dodecylbenzene sulfonate and a polymer dispersant are mixed to obtain an aqueous phase; step S2, according to a preset ratio, styrene, divinylbenzene, toluene, n-heptane, ethylene dichloride, benzoyl peroxide and carbon nanotubes are mixed to obtain an oil phase; step S3, oil phase and oil phase mixing, suspension polymerization, after processing, carbon nanotube hybrid modified styrene-divinylbenzene copolymer hydrophobic catalyst carrier can be obtained. The preparation method's overall process flow is simple, without the processes such as raw material processing and prepolymerization, without using strong acid or strong base, with a higher safety factor, lower production cost, and easy operation.
Owner:SHANGHAI YUNSONG TECH DEV CO LTD +1

Super-sticky moisture-proof and fire-proof plugging adhesive sticker

The invention relates to the technical field of electric power materials, in particular to a super-sticky moisture-proof and fireproof blocking adhesive sticker, the super-sticky moisture-proof and fireproof blocking adhesive sticker takes a PET film as a PET base material, a wear-resistant layer is attached to one side of the PET base material, an adhesive layer is attached to the other side of the PET base material, and the PET base material specifically comprises the following components in parts by weight: 80-100 parts of PET particles, 1-2 parts of a curing agent, 1-2 parts of a curing agent and 1-2 parts of a curing agent. The composite material comprises the following components in parts by weight: 2-5 parts of an acrylonitrile-butadiene-styrene copolymer, 5-8 parts of a flame retardant, 0.5-1.5 parts of nano silicon dioxide, 1-2 parts of filling microfibers and 1-2 parts of isopropyl tri (dodecylbenzenesulfonyl) titanate. The adhesive layer specifically comprises the following components in parts by weight: 20-40 parts of methyl vinyl silicone rubber, 5-15 parts of a rubber elastomer, 5-15 parts of tackifying resin, 20-40 parts of a flame retardant, 30-50 parts of filler and 3-5 parts of plant essential oil microcapsules. The prepared easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has self-curing performance, the cured easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material can be tightly attached to a protected part, and the easy-to-stick waterproof, moisture-proof and anti-corrosion coiled material has excellent waterproof sealing performance and electric leakage resistance, has excellent high-temperature resistance and atmospheric aging resistance, is good in wear resistance, and can be used as a waterproof, moisture-proof and anti-corrosion coiled material. And the material is high in flame-retardant grade, avoids the risk of delayed combustion, and is flexible and convenient to construct on site.
Owner:常州裕隆盈新材料科技有限公司 +1

Hydrogel confinement CsPbBr3 (at) CsPb2Br5 core-shell structure perovskite nanocrystalline fluorescent film and preparation method and application thereof

The invention belongs to the field of preparation of flexible perovskite fluorescent films, and particularly relates to a hydrogel confinement CsPbBr3-atCsPb2Br5 core-shell structure perovskite nanocrystalline fluorescent film as well as a preparation method and application of the hydrogel confinement CsPbBr3-atCsPb2Br5 core-shell structure perovskite nanocrystalline fluorescent film. The flexible perovskite fluorescent gel with the CsPbBr3-coated CsPb2Br5 core-shell structure is prepared through in-situ freeze thawing by using pure water as a solvent and using 4-dodecylbenzene sulfonic acid as a ligand, the obtained perovskite fluorescent gel has strong green fluorescence and high color purity, the emission wavelength of the perovskite fluorescent gel is located at 522 nm, and the half-peak width is as narrow as 18 nm. And the X-ray imaging device has better imaging resolution capability when being applied to X-ray imaging. Compared with other organic fluorescent gels, the preparation method is simpler, more convenient, environment-friendly and pollution-free. The method provided by the invention provides a new way for green preparation of the efficient and flexible perovskite fluorescent gel.
Owner:ZHEJIANG SHUREN UNIV

Carbon fiber composite material for linerless liquid hydrogen container and its preparation method

This invention relates to a linerless liquid hydrogen container carbon fiber composite material and its preparation method. The preparation method includes the following steps: reacting a hydroxyl-terminated polymer with a sulfonyl chloride group to generate a first solution; the hydroxyl-terminated polymer includes a hydroxyl-terminated hyperbranched polymer, a hydroxyl-terminated polyether polyol, or a hydroxyl-terminated liquid rubber; the sulfonyl chloride group organic compound includes dodecylbenzenesulfonyl chloride or ethylsulfonyl chloride; reacting the first solution with 1-methylimidazole, washing the product with a solvent, and vacuum drying to evaporate the solvent to obtain an ionic liquid; mixing the ionic liquid uniformly with graphene or hexagonal boron nitride nanosheets, adding a curing agent, mixing uniformly, then adding epoxy resin, mixing uniformly, and repeatedly vacuuming to obtain a modified epoxy resin mixed solution; and using the modified epoxy resin mixed solution to wind and mold carbon fiber composite material parts. This invention enhances the low-temperature toughness and gas barrier properties of carbon fiber composite materials.
Owner:SOUTHEAST UNIV

A wall crack repair material and repair process

The invention discloses a wall crack repair material, which is a water-based penetrating inorganic waterproofing agent, comprising, by mass percentage, 30-50wt% of an alkali metal silicate aqueous solution and 0.2-5wt% of a penetrating crystallization functional auxiliary agent, and the rest being water; wherein the alkali metal silicate aqueous solution is selected from at least two of a sodium silicate aqueous solution with a mass fraction of 30-40%, a potassium silicate aqueous solution with a mass fraction of 30-40%, or a lithium silicate aqueous solution with a mass fraction of 20-30%, and the like; and the penetrating crystallization functional auxiliary agent comprises, by mass percentage, 55-65% of EDTA-4Na, 15-25% of triethanolamine, 5-15% of citric acid, 6-10% of sodium polyacrylate, and 1-3% of sodium dodecylbenzene sulfonate. When repairing wall cracks, first clean the wall at the cracks, remove dust, dirt and loose parts on the surface, repair and smooth the roughness, pits and other defects with cement-based materials, and then use U-shaped sealing strips, water-absorbent resin curing films or a combination of the two to repair the cracks or fissures on the wall.
Owner:WUHAN YUANJIN BUILDING MATERIALS TECH CO LTD +1

Dicarboxyl single-tailed ampholytic surfactant, discharge aiding agent for acidizing and fracturing and preparation method of dual-carboxyl single-tailed ampholytic surfactant

The invention relates to the technical field of fracturing fluid additive preparation, discloses a dicarboxyl single-tailed ampholytic surfactant and a preparation method thereof, and further comprises a cleanup additive for acid fracturing and a preparation method thereof. The preparation method comprises the following steps: adding a required amount of dicarboxyl single-tailed ampholytic surfactant, sodium dodecyl benzene sulfonate and a glycosyl nonionic surfactant into a required amount of water, and uniformly stirring. The double-carboxyl single-tailed ampholytic surfactant has the characteristics of simple process, high product yield, biodegradability, safety and reliability, and the discharge aiding agent for acid fracturing obtained by compounding the double-carboxyl single-tailed ampholytic surfactant serving as a raw material with an anionic surfactant and a nonionic surfactant has the advantages of high efficiency, high efficiency and high efficiency. The surface and interfacial tension of the aqueous solution can be effectively reduced, and the industrial use standard of non-fluorocarbon discharge aiding agents is met.
Owner:CHINA NAT PETROLEUM CORP +1