41 results about "Dodecanol" patented technology

The invention discloses a method for preparing 12-mercaptan through solid organic acid catalysis, belongs to the technical field of 12-mercaptan preparation, and aims to solve the problems of low catalyst activity, harsh reaction conditions, serious pollution, high cost and dependence on import in the prior art. N-dodecanol and hydrogen sulfide are used as raw materials and are mixed according to the molar ratio of 1: 1.2-1: 1.3; the method comprises the following steps: gasifying n-dodecanol, mixing with purified hydrogen sulfide, preheating to 210-240 DEG C, introducing into a fixed bed reactor filled with a solid organic acid catalyst, and reacting at-0.08-3.0 MPa for 3.5-4 hours; and cooling and condensing the reaction product, carrying out gas-liquid separation, rectifying and purifying the liquid product to obtain 12-mercaptan with the purity of more than or equal to 99.5%, and recycling unreacted hydrogen sulfide. The solid organic acid can be a catalyst of p-toluenesulfonic acid and the like or mesoporous silica loaded nickel, cobalt and molybdenum metal oxides. The method has the advantages of high catalytic activity, mild reaction conditions, high product yield (the conversion rate of n-dodecanol is greater than or equal to 94.5%), environmental protection and low cost, can realize the domestic mass production of 12-mercaptan, and meets the market demand.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The invention relates to a microemulsion type suckercide as well as a preparation method and application thereof, the microemulsion type suckercide comprises the following components in percentage by weight: 30% of mixed ester alcohol component, 10% of absolute ethyl alcohol, 5% of n-butyl alcohol, 25% of emulsifier and 30% of water; the mixed ester alcohol component comprises 36 to 54.6 percent of n-caprylic alcohol, 45 to 63.9 percent of n-decanol and 0.1 to 0.4 percent of dodecanol, and the emulsifier is preferably polyoxyethylene 40 hydrogenated castor oil. The microemulsion type suckercide can be applied as a tobacco suckercide, when the suckercide is applied to tobacco suckercide, the dilution multiple is 8 times, the application method is cup spraying suckercide, and the dosage of the diluted suckercide per plant is 25 mL. The microemulsion type suckercide is green in formula, has an efficient suckercide effect on tobacco, is long in lasting period, does not contain components such as pendimethalin, butralin and flumetralin, and avoids the problem that chemical pesticide residues in tobacco leaves exceed the standard after an existing chemical suckercide is applied.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The invention discloses a phase change material and an indoor refrigeration air conditioning system using the same, and belongs to an indoor air conditioning system, the phase change material comprises the following components by weight percentage: 78%-82% of modified sodium nitrate hydrate, 9%-11% of dodecanol derivative, 4%-6% of graphite powder, 0.8%-1.2% of borax, 2.5%-3.5% of trichloroethyl phosphate, and 0.8%-1.2% of 2, 6-di-tert-butyl-4-methylphenol. The phase change temperature of the composite-formula phase change material is controlled to be 10 + / -0.5 DEG C, the composite-formula phase change material is more suitable for the requirement of indoor refrigeration, the latent heat of the composite-formula phase change material reaches 200J / g, the absorption duration is remarkably prolonged, and the requirement of long-acting cooling can be met. And after the composite phase change material is applied to an air conditioning system, cold storage can be carried out through a refrigerating machine during off-peak electricity, cold energy is released by the phase change material in non-off-peak electricity time, the electric charge cost can be remarkably saved in long-term use, and the load pressure on a power grid is reduced in peak hours.

The invention relates to the technical field of industrial wastewater treatment, and discloses a bio-based nylon production wastewater treatment method which comprises the following steps: inputting dodecanol-containing wastewater generated in a bio-based nylon production cell workshop into a static oil separation tank, and separating the dodecanol-containing wastewater into an upper oil item and a bottom clear liquid after precipitation; conveying the bottom clear liquid into an air flotation lifting tank, adding cell secondary condensate water, and dividing the bottom clear liquid mixed with the cell secondary condensate water into the bottom clear liquid and an upper oil item again under the action of an air flotation machine until more than or equal to 90% of dodecanol is removed from the bottom clear liquid. Through preliminary separation of the static oil separation tank and deep treatment of the air floatation lifting tank, 90% or more of dodecanol in the wastewater is removed in stages, and the NF concentrated liquid enriched with dodecanol is reused for production in a cell workshop, so that the defect that high-value components are not recycled in the traditional technology is overcome, the raw material cost is remarkably reduced, and resource waste is avoided.

The invention discloses reinforced high polymer modified asphalt and a preparation method thereof, and relates to the technical field of modified asphalt. The reinforced high polymer modified asphalt is prepared from the following raw materials in parts by weight: 100 parts of matrix asphalt, 4 to 6 parts of SBS (Styrene Butadiene Styrene), 0.3 to 0.6 part of cross-linking agent, 2 to 3.5 parts of plasticizer, 1 to 3 parts of anti-aging agent and 1.5 to 3 parts of nano filler, the preparation method comprises the following steps: reacting 2-formylphenylboronic acid with methanol to generate a dimethyl 2-formylphenylboronic acid compound; the preparation method comprises the following steps: reacting a 2-formylphenylboronic acid dimethyl ester compound with 1-amino-1-dodecanol to generate a boric acid ester-imine long-chain compound; and reacting the borate-imine long-chain compound with 3-glycidyl ether oxypropyl trimethoxy silane to generate the plasticizer. The reinforced high polymer modified asphalt prepared by the invention has good interface adhesion, high and low temperature stability (high-temperature deformation resistance and low-temperature crack resistance) and self-repairing performance.

The invention provides a phase-change self-repairing lightweight aggregate concrete material and a preparation method thereof.The method comprises the steps that 1, phase-change self-repairing lightweight aggregates prepared from hexadecane, dodecanol, decanoic acid, lauric acid, tetradecanoic acid and a repairing agent are mixed according to the mass ratio of 1: 1: 1: 1: 1, and composite phase-change self-repairing lightweight aggregates are obtained; secondly, the shale pottery sand is pre-wetted to reach a saturated surface dry state; 3, uniformly dry-mixing silica fume, cement, fly ash, floating beads and nano-silica in a concrete mixer to obtain a primarily mixed dry material; 4, adding composite phase change self-repairing lightweight aggregate, 50% of water, 50% of an additive and 50% of carbon fibers into the primarily mixed dry material, and uniformly stirring to obtain a medium mixed material; and 5, adding shale pottery sand, 50% of water, 50% of an additive and 50% of carbon fibers into the medium mixture, and uniformly stirring to obtain the phase-change self-repairing lightweight aggregate concrete.

This invention discloses an ultra-low friction lubricating material system with self-catalytic effect and its preparation method, belonging to the field of lubricant technology. The ultra-low friction lubricating material system is composed of a base oil, an organometallic catalyst, and organic additives. The organometallic catalyst is at least one selected from ferrocene, cobalt carbonate, cobalt oxalate, copper acetate, and nickel oxalate. The organic additives are at least one selected from o-xylene, ethylene glycol, dodecanol, oleic acid, and tetraethyl orthosilicate. During friction, the organometallic catalyst releases metal ions, which, under the action of frictional heat and contact pressure, catalyze the base oil components to form a carbonaceous lubricating film in situ on the surface of the friction pair. The organic additives provide an additional carbon source during friction, working together with the organometallic catalyst to reduce the break-in time for the friction pair to reach a stable state. This lubricating material system not only significantly reduces the coefficient of friction and wear rate but also significantly shortens the break-in time.

The invention relates to a tobacco bud inhibitor based on fatty alcohol, which comprises the following components in percentage by weight: 30% of mixed ester alcohol component, 15% of polyoxyethylene 40 hydrogenated castor oil and 55% of absolute ethyl alcohol, the mixed ester alcohol component comprises 35%-54.6% of n-caprylic alcohol, 45%-64.6% of n-decanol and 0.1%-0.4% of dodecanol, the tobacco suckercide is an emulsifiable concentrate suckercide, and the tobacco suckercide effect can reach 80% or above. The tobacco suckercide is reasonable in formula, good in suckercide effect, long in lasting period and free of pendimethalin, butralin, flumetralin and other components, and the problem that after an existing chemical suckercide is applied, tobacco leaf chemical pesticide residues exceed the standard is solved.

The application belongs to the technical field of isomer separation, and particularly relates to a metal oxide modified MgO-SiO2 solid alkali catalyst, a preparation method and application thereof. The metal oxide modified MgO-SiO2 solid alkali catalyst is prepared first, and under the catalyst, the secondary ester in dodecanol ester isomers reacts with acid or acyl chloride as much as possible, and the reaction of the hydroxyl on the primary ester is reduced as much as possible. After the dodecanol ester formed by the reaction is separated, the content of the primary ester in the dodecanol ester is naturally obviously improved. There are a large number of basic centers on the surface of the catalyst, the steric hindrance of the hydroxyl on the secondary ester is small, the secondary ester is more easily combined with the basic centers on the surface of the carrier and subjected to subsequent reaction, and the steric hindrance of the hydroxyl on the primary ester is large, so the primary ester is not easily adsorbed on the basic centers of the catalyst, thereby reducing the reaction probability of the primary ester.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The present invention relates to a composite foam hydrogel organic sewage purifier and a preparation method thereof. The technical solution is as follows: urea and carbon black are added to deionized water, stirred, dried, heated under a nitrogen atmosphere, washed, and filtered to obtain a carbon black composite g-C3N4 photocatalytic agent. Polyvinyl alcohol is added to deionized water, and then agar powder and carbon black composite g-C3N4 are added and stirred; then sodium dodecyl sulfate, dodecanol, and gum arabic are added and stirred continuously to obtain a composite foam hydrogel slurry, which is cast and freeze-dried to obtain a composite foam hydrogel. Carnauba wax and beeswax are added to anhydrous ethanol, stirred, and ultrasonically treated to obtain a hydrophobic mixed wax suspension. The hydrophobic mixed wax suspension is sprayed on a large plane on the surface of the composite foam, and freeze-dried to obtain a composite foam hydrogel organic sewage purifier. The process of the present invention is simple and low in cost; the product thus prepared not only has a long service life, but also has high water evaporation efficiency and organic matter degradation efficiency.

The invention discloses a preparation method of dodecyl chloroformate, which comprises the following steps: heating dodecanol to melt the dodecanol into a liquid state, introducing phosgene for reaction, reducing the reaction temperature to 0-20 DEG C in the reaction process, continuing the reaction until the content of the dodecanol in the reaction system is less than 0.5%, stopping introducing the phosgene, and keeping the temperature to obtain a reaction liquid; and heating the reaction liquid to 30 DEG C or above, introducing nitrogen, and removing impurities in the reaction liquid to obtain dodecyl chloroformate. Compared with the conventional method, the preparation method of dodecyl chloroformate can effectively improve the reaction conversion rate and selectivity by optimizing the reaction temperature of each stage in the reaction process, and can quickly and simply prepare high-yield and high-purity dodecyl chloroformate, the content is greater than or equal to 98%, the yield is greater than or equal to 98%, the product competitiveness can be improved, and the method is suitable for industrial production. The industrial application is convenient to realize and the industrial practicability is high.

The application discloses molybdenum-doped nano zinc oxide with high visible light photocatalytic performance and a preparation method and application thereof. The molybdenum-doped nano zinc oxide is prepared from 1-octadecene, 1-dodecanol, oleic acid, a zinc source and a molybdenum source through vacuum degassing treatment, uniform stirring under a nitrogen atmosphere, heating to 100-140 DEG C, keeping warm until solid particles are dissolved, heating to 220-250 DEG C, keeping warm for 0.5-1 h of reaction, and cooling, washing and drying. The molybdenum-doped nano zinc oxide produces a local surface plasmon resonance absorption peak in the range of 600-700 nm through molybdenum ion doping, and the nano powder has a diameter of 5-20 nm; and the visible light photocatalytic performance of the zinc oxide material is greatly improved under the condition of visible light.

The present invention relates to the technical field of measurement. Disclosed are a method for measuring impurity contents in poly-L-lactic acid and a use. The method comprises: dissolving a poly-L-lactic acid sample in dichloromethane and adjusting same to a fixed volume to prepare a test solution; and injecting the test solution into a gas chromatograph, recoding a chromatogram, and computing the contents of dodecanol and 2-ethylhexanoic acid by means of an external standard method. The method for measuring impurity contents in poly-L-lactic acid provided in the present invention allows for simultaneous measurement of two impurities, i.e., dodecanol and 2-ethylhexanoic acid, achieves good separation degrees on the two impurities, is simple to operate, and achieves high specificity, high sensitivity, high accuracy, high reproducibility, and high durability; the retention times of chromatographic peaks of substances to be measured are appropriate, and impurities are quantified by using an external standard method, the measurement results are accurate and reliable, and both dodecanol and 2-ethylhexanoic acid can be effectively measured, thereby providing a basis for quality control of poly-L-lactic acid.

The invention relates to the field of oil-gas exploration and development, and discloses a lubricant composition for a drilling fluid and a drilling fluid system. The lubricant composition for the drilling fluid comprises dialkyl phthalate and 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate. The lubricant composition has good lubricating property and good compatibility with drilling fluid, can be used under complex conditions of high temperature, high salt and the like, effectively reduces the lubricating coefficient of the drilling fluid, and solves the problems of overlarge friction resistance and overlarge torque in the drilling process.

The invention provides a phase-change ceramsite aggregate and a preparation method thereof.The method comprises the steps that 1, Yunnan concrete stone is cleaned, put into an acid solution to be soaked, taken out, washed to be neutral and put into a drying oven to be dried to be constant in weight; 2, performing particle size screening on the pretreated Yunnan concrete stone, dividing the Yunnan concrete stone into five particle sizes, and drying the Yunnan concrete stone until the weight is constant; 3, enabling the phase change material to be in a liquid state, hexadecane, dodecanol, decanoic acid, lauric acid and tetradecanoic acid; 4, the phase change material and the cloud concrete stone are placed in a vacuum barrel, and the constant temperature is 60 DEG C; 5, the phase change material is fully adsorbed into internal pores of the cloud concrete stone; 6, after adsorption is finished, taking out the cloud concrete stone, wiping off the residual phase change material on the surface, placing the cloud concrete stone in cold water for condensation, and airing after cooling and solidification; 7, cement paste is prepared, and the surface of the phase change aggregate is evenly wrapped by the cement paste; and 8, mixing geopolymer slurry: mixing the cloud concrete stones with five particle sizes according to a certain proportion, filling into a mold, curing, and removing the mold.

The application discloses a super-hydrophobic self-cleaning coating material and a preparation method thereof. The super-hydrophobic self-cleaning coating material comprises 1-3 parts of a silicon-based mesoporous material, 4-5 parts of coconut oil diethanolamide, 1-3 parts of nano-titanium dioxide, 3-5 parts of methacrylic acid dodecanol ester, 1-3 parts of a polyethylene glycol type antistatic agent, 1-3 parts of expanded graphite, 1-3 parts of nano-graphene, 30-50 parts of anhydrous ethanol and 20-30 parts of acetone. In the application, the synergistic effect of the components is used, so that the coating has good hydrophobicity, durability, stain resistance, transmittance and antistatic property, the self-cleaning effect of the coating is good, the service time of the coating is greatly improved, and the cost of frequently replacing the coating is reduced.

The invention provides a high-suspension sand-containing continuous phase fluid composition, a coating and a preparation method, and belongs to the technical field of coating preparation, the high-suspension sand-containing continuous phase fluid composition comprises the following components by weight: 10-15 parts of deionized water; 0.5 to 0.7 part of a bactericide; 0.02 to 0.03 part of xanthan gum; 0.24 to 0.3 part of magnesium lithium silicate; 0.3 to 0.5 part of a defoaming agent; 0.3 to 0.5 part of a preservative; 2 to 2.5 parts of ethylene glycol; 2 to 3 parts of dodecanol ester; 65 to 75 parts of a continuous phase emulsion; 0.2-0.3 part of an associative thickener and 8-15 parts of quartz sand, and the particle size of the quartz sand is 80-120 meshes. The high-suspension sand-containing continuous-phase fluid composition provided by the embodiment of the invention has good fluidity and suspension stability, and can keep quartz sand in a suspension state without sinking to the bottom.

The invention relates to a rectification process parameter optimization method for wastewater treatment of a sodium flotation agent workshop, which comprises the following steps: system pretreatment: starting a cooling system and a heating system of a rectification system, and checking the pressure state of a dehydrating tower (T0101) at the same time; and checking whether the filler in the dehydrating tower is blocked or not, and cleaning if the filler is blocked. By optimizing key process parameters of a dehydrating tower (T0101) and a separating tower (T0102) and combining step-by-step adjustment of an operation process, dual goals of up-to-standard discharge of wastewater and efficient recovery of raw materials are achieved, the tower top temperature of the dehydrating tower is set to be 92 DEG C, the tower kettle temperature is set to be 130 DEG C, the feeding amount is set to be 0.178 m < 3 > / h, the reflux ratio is set to be 5, the tower top temperature of the separating tower is set to be 127 DEG C, the tower kettle temperature is set to be 200 DEG C, the feeding amount is set to be 0.152 m < 3 > / h, and the reflux ratio is set to be 5. The method has the advantages that the content of organic matters in the wastewater can be controlled within a standard range by matching with specific start-stop and regulation processes, the recovery rates of morpholine and dodecanol are obviously improved, the energy consumption is reduced, the existing rectification system does not need to be massively transformed, and the method can be directly applied to industrial production.

The invention relates to hard film anti-rust oil and a preparation method thereof. The hard film anti-rust oil comprises the following raw materials: base oil, a film-forming agent, a plasticizer and an anti-rust agent, the film-forming agent comprises rosin, and the plasticizer comprises dodecanol. The hard film anti-rust oil contains rosin and dodecanol at the same time, the rosin and the dodecanol are compounded, high adhesive force brought by polar groups of the rosin is reserved, the flowability of molecular chains is improved through long-chain alkyl of the dodecanol, and the bending performance is improved while the high adhesive force of a film layer is kept. In addition, conjugated double bonds in the rosin are easy to oxidize and yellow under the action of illumination and oxygen, so that the appearance of the film becomes poor; long-chain alkyl of dodecanol can wrap rosin molecules, contact between the rosin molecules and air and ultraviolet rays is reduced, and through an accelerated aging test, the yellowing degree of a mixed system is reduced to 3.2 or below from 8.5 of pure rosin.

This invention provides a thickener for fracturing, its preparation method, and a fracturing fluid. The thickener preparation method includes: reacting monomers in an aqueous environment using an azo initiator and a redox initiator; the reaction products are then sequentially granulated, hydrolyzed, dried, and powdered to obtain the fracturing thickener; the monomers include a hydrophilic monomer, a cationic monomer, a first anionic monomer, a second anionic monomer, and a composite supramolecular monomer composed of octylphenol polyoxyethylene ether acrylate and nonylphenol polyoxyethylene ether acrylate in a mass ratio of 3.5-4:1. The fracturing fluid contains the above-mentioned thickener and a nano-penetrating agent; the raw material components of the nano-penetrating agent include limonene, water, a dihexyldimethylammonium chloride modified flake molybdenum disulfide nanofluid solution, dodecanol, Tween-80, and Span-80 in a mass ratio of 2.5-3.5:2:4.5-5.5:0.8-1.2:0.4-0.6:0.4-0.6.

The application belongs to the technical field of functional polymer materials, and particularly relates to a magnetic nanoparticle modified polymer monolithic column, a preparation method and application. The monolithic column is prepared by an in-situ thermal initiation polymerization method, styrene is used as a functional monomer, divinylbenzene is used as a crosslinking agent, dodecanol and toluene are used as binary pore-forming agents, azobisisobutyronitrile is used as an initiator, and Fe3O4 / SiO2 composite nanoparticles are added, and the magnetic nanoparticle modified polymer monolithic column is prepared through a polymerization reaction. The preparation method is simple, easy to operate and mild in reaction conditions, the prepared monolithic column is uniform in structure, good in permeability and large in specific surface area, and has good separation performance. As a separation medium, the prepared monolithic column is combined with a USB4000 optical fiber spectrometer by using high-frequency electromagnetic induction heating technology, a new online detection method of benzene series is established, the application range of the monolithic column is expanded, and a novel idea is provided for chromatographic separation and detection technology.

The invention belongs to the technical field of high polymer materials, and particularly relates to a high-performance carbon fiber prepreg and a preparation method thereof. The high-performance carbon fiber prepreg is prepared from a resin composition and carbon fibers, wherein the resin composition is prepared from the following raw materials in parts by weight: 60 to 70 parts of epoxy resin, 5 to 10 parts of modified carbon nanotubes, 0.5 to 1 part of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 10 to 20 parts of a curing agent, 5 to 10 parts of epoxy triglyceride, 0.05 to 0.1 part of an antioxidant and 1 to 5 parts of functional filler. After the carbon fiber prepreg is subjected to hot pressing and curing, the components are fully crosslinked, and a carbon fiber composite material which is high in strength, resistant to high temperature and good in heat conduction capacity is formed. The carbon fiber prepreg is widely applied to the fields of aerospace, high-speed railways and the like.

The invention discloses lightweight thermal insulation concrete as well as a preparation method and application thereof, and belongs to the technical field of lightweight thermal insulation materials. The concrete comprises cement, fly ash, expanded perlite, polystyrene foam particles, a water reducing agent, a functional foaming liquid, a foam stabilizer, cellulose ether and water. Wherein the functional foaming liquid is formed by compounding sodium dodecyl benzene sulfonate, terephthalic acid, sodium carboxymethyl cellulose and tannic acid, and the foam stabilizer is composed of dodecanol and decyl glucoside according to the mass ratio of 1: 1. According to the invention, a nanotube network is formed in situ on a bubble interface through the functional foaming liquid, and the synergistic foam stabilizing effect of the composite foam stabilizer is combined, so that the foam stability is remarkably improved, and the pore structure of a hardened body is optimized. The obtained concrete has the advantages of low density, low heat conductivity coefficient, high compressive strength, excellent freeze-thaw resistance, chloride ion permeation resistance, carbonization resistance and durability, and is suitable for building non-bearing wall self-insulation systems, roof insulation layers and fireproof isolation belts.

The present invention relates to a biostimulation and / or biocontrol composition for plants, this composition comprising compounds of interest from at least one alga and a NADES solvent that was used for the extraction of the compounds of interest chosen from the Proline / Fructose / Glycerol (1:1:1) NADES, the Urea / Proline (1:1) NADES, the Betaine / D-glucose (1:1) NADES, the Betaine / D-sorbitol (1:1) NADES, the Lactic acid / Glycerol (1:1) NADES, the Glycine / Arginine / Sorbitol (1:1:3) NADES and the Lactic acid / Dodecanol (1:1) NADES, wherein the alga is chosen from the group consisting of Laminaria, Ulva, Fucales, Gigartinales and mixtures thereof. The invention also relates to the use of this composition in agriculture for the biostimulation and / or biocontrol of plants. The invention also relates to a method for obtaining this composition.

The invention relates to the technical field of sodium flotation reagents, and discloses a process optimization method for improving the conversion rate of dodecanol in a sodium flotation reagent and reducing the COD (Chemical Oxygen Demand) of wastewater, which comprises the following steps: preparing three reaction kettles, transforming a No.3 reaction kettle, namely transforming a gas phase system of the reaction kettle, additionally installing a temperature monitoring device, and carrying out a pressure resistance experiment. A segmented control strategy is adopted: the dripping speed of morpholine and the reaction temperature of a No.3 reaction kettle are regulated and controlled, the stirring speed, the catalyst dosage and the hydrogen flow are regulated and controlled, a condensate discharge control experiment is carried out, finally, a rectification system experiment is carried out, and parameters of a dehydration tower rectification system are monitored. According to the present invention, the condenser, the gas phase pipe, the thermometer, the sight glass and the like of the reaction kettle are transformed so as to ensure the safe and stable experiment, provide the good foundation for the process optimization, and significantly improve the conversion rate and the grade of the product by adjusting the morpholine dropping speed and time, the stirring speed, the reaction kettle temperature, the catalyst consumption and other parameters.

The invention discloses a preparation method of an early-strength quick-hardening micro-expansion grouting material for a reinforcing steel bar sleeve. A production raw material formula comprises the following components in parts by mass: 720 parts of sulfur silicate cement, 80-125 parts of a composite retarding regulator, 100-154 parts of a composite micro-expansion regulator, 50-150 parts of silicon nitride powder, 750-850 parts of brown aluminum oxide, 0.6-1.2 parts of dodecanol random polyether and 9-13 parts of a polycarboxylate superplasticizer. The composite retarding regulator comprises phosphorus slag powder; the composite micro-expansion regulator comprises a calcium-based solid waste admixture. The grouting material has the advantages that the effects of high early strength, excellent flowability and micro-expansibility of the grouting material for the reinforcing steel bar sleeve can be realized, the grouting material has good mechanical property, flowability and durability, can permeate into fine gaps and is good in compactness by optimizing the formula design, and the good flowability ensures that the grouting material is free of bleeding and segregation during construction, and the grouting material has good durability. And the strict requirement of a fabricated building on the connecting joint is met.

The application discloses a preparation method of a barrier antibacterial TPU composite film. Graphene oxide is prepared by using an improved hummers method, fluorinated graphene is prepared by using hydrofluoric acid as a fluorine source, the fluorinated graphene is used as a carbon source, and fluorinated graphene quantum dots are prepared under the action of an oxidant and an alkaline condition. Chitosan is dissolved in an acetic acid solution and reacts with the FGQDs under the action of dodecanol to form a barrier antibacterial agent CS / FGQDs. The TPU composite film produced by using the barrier antibacterial agent not only has a certain improvement in antibacterial performance, but also has improved barrier performance, and can generate great social and economic benefits.