527results about "Mixing" patented technology

A coating composition comprises: a fluoro-aliphatic group-containing copolymer comprising a repeating unit A corresponding to a fluoro-aliphatic group-containing monomer, and a repeating unit B corresponding to at least one monomer, wherein each of the I / O values of said at least one monomer constituting the repeating unit B is 1.0 or less.

A boron-containing polyethylene glycol fatty acid ester surfactant belongs to the field of organic chemistry and functional materials. The boron-containing polyethylene glycol fatty acid ester surfactant is prepared as follows: polyethylene glycol (PEG), boric acid and fatty acid are used as raw materials, first esterification reaction of the PEG and the boric acid is performed, then esterification reaction of the PEG and the fatty acid is performed to obtain boron-containing poly ethylene glycol fatty acid ester; by changing the species of fatty acids and catalysts and molecular weight of the PEG, the esterification rate can be enhanced, the boron-containing poly ethylene glycol fatty acid ester product can be used as a surfactant, and the boron-containing poly ethylene glycol fatty acid ester can reduce water surface tension and has good emulsifying properties.

The invention relates to a recyclable easily-degradable macromolecular surfactant for cleaning oily sludge and application of the recyclable easily-degradable macromolecular surfactant. The macromolecular surfactant is prepared by taking acrylamide, methacrylic acid long-chain alkyl ester and tertiary amino substituted methacrylate as raw materials through free radical polymerization. The macromolecular surfactant is dissolved in water to prepare a cleaning solution, and oily sludge can be efficiently eluted. CO2 and N2 are sequentially introduced into the oil-containing emulsion after the oil-containing sludge is cleaned, or diluted hydrochloric acid and a diluted alkali aqueous solution are sequentially added, the hydrophilic-hydrophobic property of the macromolecular surfactant is changed through pH regulation and control, separation of the macromolecular surfactant and an oil phase is achieved, petroleum resources are recycled, and recycling of the cleaning solution containing the macromolecular surfactant is achieved. The residual macromolecular surfactant in the cleaned deoiled sludge can be degraded under the action of environmental microorganisms.

The invention provides a fluorosilane modified gemini surfactant and a preparation method thereof, a resistance reducing agent and a preparation method thereof, and a polymer fracturing fluid. The fluorosilane modified gemini surfactant has a structure as shown in a formula I, wherein R1 is selected from one or a combination of more than two of saturated alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons, and R2 is selected from one or a combination of more than two of alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons; (CF2) the number of n in n is 1 to 18; x <-> is Br <-> and / or I <->; and R2 is selected from one or a combination of more than two of straight-chain saturated alkyl, branched-chain saturated alkyl, alkylaryl, alkylalkoxy, alkyl ester group and unsaturated alkyl with 1-8 carbons. According to the invention, the fluorosilane modified gemini surfactant is used as a hydrophobic monomer of the resistance reducing agent, so that the synthesized resistance reducing agent has a single-head and double-tail gemini surfactant structure, the tackifying and sand-carrying capabilities are improved, and the surface and interface tension of a gel breaking solution and reservoir rocks is reduced.

The application discloses a high-efficiency environment-friendly foam extinguishing agent for a converter station or a transformer substation and a preparation method thereof. A structural formula of a quaternary ammonium salt modified tetrasiloxane surfactant used in the extinguishing agent is shown in the specification. The surface tension of the quaternary ammonium salt modified tetrasiloxane surfactant is less than or equal to 20.8 mN / m. The quaternary ammonium salt modified tetrasiloxane surfactant can be specifically applied to development of the high-efficiency environment-friendly foam extinguishing agent for the converter station or the transformer substation. The high-efficiency environment-friendly foam extinguishing agent has excellent foaming performance, stability, extinguishing performance and film forming performance.

The invention relates to an efficient compound emulsifier based on hydrophilic polyelectrolyte, and belongs to the field of colloid and interface chemistry. The composite emulsifier is composed of a hydrophilic polyelectrolyte and an ionic surfactant, and the hydrophilic polyelectrolyte and the ionic surfactant have the same charges in a water phase. The compound emulsifier is an efficient O / W type emulsifier. Wherein the effective concentration of the polyelectrolyte can be as low as 0.001 wt.% of the mass fraction of the polyelectrolyte in a water phase, and the effective concentration of the ionic surfactant can be as low as 0.01 times of the critical micelle concentration (cmc) of the ionic surfactant. The composite emulsifier has good biocompatibility and can be safely used in the fields of food, medicine, cosmetics and the like. The efficient compound emulsifier can greatly reduce the use amount and emission of the surfactant, and has extremely high economic benefits and environmental benefits.

To provide an emulsion composition that captures unsaturated fatty acids, such as oleic acid, as sebum components, to improve skin conditions, and effectively prevents rough skin due to sebum.SOLUTION: The emulsion composition comprises the following components (A), (B), and (C): a polymer having a cellulose skeleton including substituents selected from a hydroxypropyl group, a hydroxybutyl group, and an amide group, the number of substituents being 2.4 or greater per glucose (A); a liquid dihydric alcohol (B); and one or more compounds selected from sphingosine, sphingosine salts, pseudo-sphingosines, salts of pseudo-sphingosines, anionic surfactants, and cationic surfactants (C).SELECTED DRAWING: None

The application discloses a super-long chain (carbon atom number in a hydrophobic tail chain is greater than or equal to 18) polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid and a preparation method. The super-long chain polyoxyethylene ether surfactant thickened aircraft deicing and anti-icing liquid comprises the following components and mass percentages: alcohol 40-69%, deionized water 30-59%, and surfactant 0.2-2.0%, wherein the surfactant is a polyoxyethylene monomethyl ether ester of docosanoic acid (C 22 -350) with the following structural formula: The application obtains a deicing and anti-icing liquid which is good in deicing and anti-icing performance and relatively environment-friendly, solves the problems that a polymer-based deicing and anti-icing liquid is easy to be rehydrated to form a hydrated gel on the surface of an aircraft and that a surfactant itself or other additives cause corrosion on the surface of the aircraft under the premise of ensuring the deicing and anti-icing effect.

The application belongs to the technical field of surfactants, and discloses a kind of organic counterion quaternary ammonium salt gemini surfactants without chlorine and a preparation method and application thereof.The organic counterion quaternary ammonium salt gemini surfactants without chlorine are obtained by adding a certain amount of alkyl diamine compound acidified by organic acid into C1-C 18 The alkyl glycidyl ether is subjected to quaternary ammonium reaction by adding a certain amount of alkyl diamine compound acidified by organic acid.The obtained organic counterion quaternary ammonium salt gemini surfactants without chlorine contain two organic counterions and two hydroxyl groups, the synthesis process is simple, the conditions are mild, and no toxic and harmful by-products are produced, which can avoid the corrosion of halogen ions to equipment and environmental pollution during preparation.

The application relates to the technical field of lithium ion battery positive electrode materials, in particular to a compounded lithium iron phosphate dispersant as well as a preparation method and application thereof and a lithium iron phosphate positive electrode slurry. The compounded lithium iron phosphate dispersant forms a ternary synergistic system through accurate compounding of core components, realizes the synergistic effect of strong anchoring, stable electrostatic repulsion and excellent interface compatibility, is suitable for different types of lithium iron phosphate materials, and can prepare a high-solid-content and low-viscosity lithium iron phosphate positive electrode slurry.

Aqueous compositions comprising a reaction product of a saccharide polymer and a fatty acid or a fatty ester may be obtained in an aqueous fluid in the presence of a hydroxide base and a neutral surfactant or a reaction product form thereof, the saccharide polymer comprising a dextran, a dextrin compound, or any combination thereof. When further combined with a zwitterionic surfactant in a sufficient concentration, emulsifying compositions may be obtained. The emulsifying compositions may be contacted with an oleaginous substance to produce an emulsified fluid, which may define an oil-in-water emulsion.

The invention belongs to the technical field of fine chemical synthesis, belongs to a nonionic short fluorine chain surfactant, and relates to a preparation method of a fluorinated polyether surfactant. The preparation method comprises the following steps: reacting trimethylolethane with a hydrogen bromide acetic acid solution to prepare an intermediate 1; reacting the intermediate 1 in an alkaline environment without an organic solvent to prepare an intermediate 2; reacting the intermediate 2 with pentafluoropropanol under the action of potassium hydroxide and a catalyst 1 to prepare a fluorinated monomer; finally, the fluorinated monomer is subjected to ring opening polymerization under the action of an initiator and a catalyst 2, and the fluorinated polyether type surfactant is prepared. The method has the advantages of easily available raw materials, mild reaction conditions, simple synthesis, low cost, high yield and short fluorine chain of the product, can replace a long-chain fluorine-containing surfactant which is difficult to degrade, and can be used as an additive in the fields of photoresists, coatings, adhesives and the like. The surface tension can be obviously reduced, the surface defects of a coating can be reduced, and the appearance can be improved by adding a very small amount of the surface tension reducing agent.

Certain aspects of the present disclosure are related to systems and methods related to the removal of PFAS molecules. In one aspect, systems comprising a foam fractionation system are generally described. In some embodiments, the foam fractionation system comprises a vessel and / or a bubbler. The vessel, in accordance with certain embodiments, comprises an elongated portion and a body portion comprising a main body portion and a taper portion. The bubbler is configured to receive a gas input and inject bubbles into an interior volume of the vessel. An input liquid solution comprising one or more per- and / or polyfluoroalkyl substance (PFAS) molecules and a surfactant enters the foam fractionation system. The input liquid solution is treated by the foam fractionation system such that some or all of the PFAS molecules are separated into a foamate output. In some embodiments, a liquid output exiting the foam fractionation system comprises a relatively low amount, if any, of the PFAS molecules. In some embodiments, the liquid output and / or the foamate output is recycled (e.g., after one or more passes through one or more foam fractionation system).

To provide a surfactant containing an amino acid derivative having a specific structure, and to provide a formulation.SOLUTION: The present disclosure provides surfactants for paints, inks, adhesives, and paint strippers that are in the form of derivatives of amino acids having surface active properties. The amino acids may be naturally occurring or synthetic amino acids, or they may be obtained via a ring-opening reaction of a molecule such as a lactam, for example caprolactam. The amino acid may be for forming a compound having surface active properties. Characteristically, these compounds may have a low critical micelle concentration (CMC) and / or the ability to reduce the surface tension of liquids.SELECTED DRAWING: Figure 1

An aqueous composition containing the reaction product of a saccharide polymer with a fatty acid or fatty acid ester can be obtained in an aqueous fluid in the presence of a hydroxide base and a neutral surfactant or its reaction product form, where the saccharide polymer contains a dextran, a dextrin compound, or any combination thereof. When further combined with a sufficient concentration of a zwitterionic surfactant, an emulsified composition can be obtained. The emulsified composition can be contacted with an oily material to produce an emulsified fluid, which can define an oil-in-water emulsion.

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

The invention discloses a surfactant for selectively extracting perrhenate and an application method of the surfactant, the surfactant is a high-selectivity diamino surfactant, and ammonium perrhenate can be separated and enriched by the surfactant. The application method comprises the following steps: adjusting the pH value of a perrhenate-containing leachate, sequentially adding the diamino surfactant and the bubble dispersant, and introducing gas for flotation to obtain a rhenium-rich component; and after the rhenium-rich component is subjected to pH adjustment, a stripping agent is added for stripping, so that ammonium perrhenate with relatively high purity is obtained. The method is simple in technological process, low in operation cost, good in selective separation effect on ammonium perrhenate, capable of effectively overcoming the defects that a traditional solvent extraction process is tedious and high in extraction agent consumption, and suitable for selective separation of ammonium perrhenate under the low-concentration condition.

The presently claimed invention relates to polyalkyleneimine-based polymers that are useful as dispersants and a process for the preparation thereof. The presently claimed invention is also directed to dispersants that are useful in solvent-based dispersion systems as well as in water-based dispersion systems.

An embodiment of the present invention pertains to a titanate compound fine particle powder containing a modified titanate compound powder. Specifically, the titanate compound fine particle powder provides a titanate compound powder dispersion capable of suppressing, with a small amount of a polymer dispersant, the aggregation and re-aggregation of particles. Another embodiment of the present invention pertains to a titanate compound powder dispersion that exhibits excellent dispersibility in various solvents. Still another embodiment of the present invention pertains to an economically and industrially advantageous method for producing a titanate compound fine particle powder. Provided is a titanate compound fine particle powder that contains a modified titanate compound powder including cellulose nanofibers and a titanate compound powder. The cellulose nanofibers and the titanate compound adhere to or adsorb to each other. The ratio of the total carbon content of the titanate compound fine particle powder and the BET specific surface area of the titanate compound fine particle powder is 0.006 or less. Also provided is a method for producing the titanate compound fine particle powder, the method including mixing an unmodified titanate compound powder and the cellulose nanofibers, and then drying the mixture.

The present invention relates to a carbon nanotube dispersion comprising carbon nanotubes, a dispersant and a dispersion medium, wherein the dispersant comprises a first dispersant and a second dispersant in a weight ratio of 100:10 to 100:115, the first dispersant is a dispersant comprising an N atom, the second dispersant comprises a compound comprising one aromatic ring and two or more hydroxyl groups in a molecular structure, and a weight ratio of the carbon nanotubes and the dispersant is 100:50 to 100:500, thereby having a small size of particles contained in the carbon nanotube dispersion.

To provide a powdery dispersant composition for a hydraulic composition which is excellent in heat resistance.SOLUTION: The powdery dispersant composition for a hydraulic composition contains a copolymer including, as constituent monomers, (A) one or more compounds selected from acrylic acid, methacrylic acid, fumaric acid, maleic anhydride, and maleic acid, and (B) one or more compounds selected from compounds represented by specific methacrylic acid ester compounds and specific acrylic acid ester compounds, and optionally an alkaline agent, in which a degree of neutralization of the copolymer is 0.7 or more and 1 or less, and the alkaline agent content is 0.3 molar equivalent or less with respect to the copolymer.SELECTED DRAWING: None

The invention relates to the technical field of perfluoro fine chemical engineering, in particular to a method for preparing a perfluoro organic carboxylic acid compound from perfluoro organic carboxylic ester, and particularly relates to a method for preparing a reactive perfluoro organic carboxylic acid compound from perfluoro organic carboxylic ester. The method comprises the following steps: carrying out hydrolysis reaction on perfluorinated organic carboxylate and an alkaline aqueous solution to generate a perfluorinated organic carboxylate solution, drying the generated perfluorinated organic carboxylate solution, preparing a perfluorinated organic carboxylate aqueous solution again, and carrying out ion exchange with hydrogen-type cation exchange resin to convert the perfluorinated organic carboxylate aqueous solution into a perfluorinated organic carboxylic acid aqueous solution. And performing post-treatment on the perfluorinated organic carboxylic acid aqueous solution to obtain the perfluorinated organic carboxylic acid compound. The preparation process of the method does not involve organic solvents such as sulfuric acid, hydrochloric acid and other acidic solutions, and the method has the advantages of simple operation, stable process, high product purity, safety, short reaction time, high yield and the like.

The present invention provides a novel natural herbicidal composition consisting of a mixture of environmentally harmless natural ingredients. The present invention provides herbicides that can replace and / or supplement existing herbicides. The natural herbicide is environment-friendly, and is healthy and safe to human and animals. The invention belongs to the field of agriculture, and provides a natural herbicide capable of replacing and / or supplementing an existing herbicide and a use method thereof, so that the general requirements of weed control are met.

The application provides a low pour point nonionic surfactant and a preparation method thereof, which is composed of the following raw materials in parts by weight: C13 isomeric fatty alcohol polyoxyethylene ether 18-30 parts, reverse EO / PO block copolymer 10-20 parts, sodium diisooctyl sulfosuccinate 1-7 parts, sodium dodecyl sulfonate 1-5 parts, glyceryl laurate 1-5 parts, isopropyl alcohol 5-10 parts, and propylene glycol 1-5 parts; the formula is constructed based on a nonionic surfactant as a main body, ion surfactants and additives are introduced, and the system is optimized, so that a low pour point nonionic surfactant with excellent adsorption capacity and decontamination capacity is obtained.

The subject invention provides biological emulsifying agents for use in formulating metalworking fluids, methods for formulating the metalworking fluids, and enhanced metalworking fluids.

The application relates to the technical field of surfactants, in particular to a pentadecyl phenol alkoxyl ether sodium sulfate surfactant and a preparation method thereof. The preparation method of the pentadecyl phenol alkoxyl ether sodium sulfate surfactant comprises the following steps: after pretreatment, cashew nut shell liquid is selectively hydrogenated to obtain pentadecyl phenol with a specific composition; then, alkoxylization reaction is carried out under the condition of an alkaline catalyst to obtain pentadecyl phenol polyalkoxyl ether; and the pentadecyl phenol polyalkoxyl ether is sulfated and neutralized to obtain the pentadecyl phenol alkoxyl ether sodium sulfate surfactant. The surfactant improves the problem that the activity of the surfactant is reduced when the saturation of the pentadecyl phenol is too high or too low; ensures that the final product has good fluidity at low temperature, guarantees the continuity of production, effectively reduces the occurrence of over-sulfation; and simultaneously improves the production efficiency and reduces the cost.

The invention provides a self-assembled surfactant as well as preparation and application thereof. The preparation method comprises the following steps: adding an anionic surfactant and a nonionic surfactant into a buffer solution, uniformly mixing, and heating until the anionic surfactant and the nonionic surfactant are completely molten, so as to obtain the self-assembled surfactant. Wherein the anionic surfactant is one or more of lignosulfonate, secondary alkyl sulfonate and alpha-olefin sulfonate; the nonionic surfactant is one or more of polyethylene glycol, fatty alcohol-polyoxyethylene ether, polyoxyethylene alkyl ether and polyoxyethylene nonyl phenyl ether. The specific anionic surfactant and the nonionic surfactant are compounded, self-assembly is completed through heating, and the obtained self-assembly surfactant can remarkably improve the enzymolysis efficiency of lignocellulose.

To provide a perfluoropolyether compound expressing excellent surface tension reduction performance, and expressing excellent foamability and foam stability not only during diluting fresh water but also during diluting sea water, and a fluorine-based surface active agent including the compound.SOLUTION: A perfluoropolyether dicarboxylic acid compound or a salt thereof is expressed by the following formula (1). In the formula, Rf1 represents a 1-4C perfluoroalkyl group. R1 represents a substituted or unsubstituted 1-10C hydrocarbon group. R2 represents a substituted or unsubstituted 1-6C hydrocarbon group. R3 and R4 are same or different and each represent a substituted or unsubstituted 1-4C hydrocarbon group. n is an integer of 0-5.SELECTED DRAWING: None

The invention belongs to the field of microbial fermentation and the technical field of daily chemicals, and particularly relates to deacetylated sophorolipid as well as a preparation method and application thereof. By using cheap culture medium components and screening out saccharomycetes with high yield of lactone type sophorolipid, the problem that the production cost of the sophorolipid is too high is effectively solved, and the application of the sophorolipid in various fields is promoted; through the step of carrying out enzymolysis on a fermentation substrate in advance, the problems of long single fermentation period, low thallus utilization rate, high energy consumption and high cost of traditional saccharomycetes are solved. A multi-round fermentation circulation system is designed, and bacteria liquid is settled and recycled and then inoculated and fermented, so that thalli are efficiently and repeatedly utilized, the unit yield is increased, the fermentation period is shortened, and the production cost is effectively controlled. The structure is adjusted through a resin modification technology, a final product mainly comprises acetylated sophorolipid, and compared with acetylated sophorolipid and deacetylated sophorolipid, the sophorolipid has better foam stability and sensitive skin repairing effect and is suitable for the application fields of cosmetics, washing care and the like.