930results 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 present invention relates to a preparation method and application of a supramolecular aggregate surfactant, and belongs to the field of supramolecular coordination chemistry, surface modification engineering and hydrophobic coating technology. In the present invention, 4-hydroxypyridine-2,6-dicarboxylic acid and malonic acid prepare an adhesive ligand, and with the help of the coordination of the carboxyl structure and lanthanum ions on 4-hydroxypyridine-2,6-dicarboxylic acid and perfluorooctanoic acid, a supramolecular aggregate in a nano-aggregated state is obtained, which is self-assembled into a supramolecular aggregate surfactant. The active agent can solubilize fluoride and can also be applied in the field of hydrophobic coatings. The coating has the characteristics of imitating lotus leaf structure and hydrophobic wax, and has good hydrophobic properties.

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 present disclosure provides siloxane derivatives of amino acids that have surface-active properties. The amino acid can be naturally-occurring or synthetic, or they may be obtained via a ring-opening reaction of a lactam, such as caprolactam. The amino acid may be functionalized with a siloxane group to form a compound that is surface-active and has surfactant characteristics. The compounds have low critical micelle concentrations (CMC) as well as the ability to lower the surface tension of a liquid.

To provide a non-fluorinated dispersant capable of achieving dispersibility equivalent to that of a fluorinated dispersant in a dispersion containing dispersed fluorinated resin particles.SOLUTION: There is provided a dispersant for fluorinated resin particles for dispersing fluorinated resin particles in a liquid, the dispersant comprising: (1) a non-fluorinated copolymer containing, as repeating units, (a) a Si-O-bond-containing monomer having one polymerizable functional group in a single molecule, the polymerizable functional group being a (meth)acryloyl group, and (b) a (meth)acryloyl-group-containing monomer having one polymerizable functional group in a single molecule, the polymerizable functional group being a (meth)acryloyl group, except that the Si-O-bond-containing monomer is excluded; and (2) an organic solvent.SELECTED DRAWING: None

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.

Disclosed in the present disclosure are a bio-based organic silicon surfactant, and a preparation method therefor and the use thereof. The surfactant has the following structure: Si(CH3)3-O-[Si(CH3)2-O]a-[Si(CH3)R1-O]b-[Si(CH3)R2-O]c-Si(CH3)3. By using a comb-shaped structure with a hydrophobic siloxane as a main chain and a hydrophilic polyether as a side chain, a bio-based substance is grafted and introduced to the polyether at the side chain thereof by means of an epoxide ring-opening reaction, thereby adjusting the hydrophilicity and lipophilicity of the organic silicon surfactant to a certain extent and improving the surface activity of the organic silicon surfactant. The introduction of the bio-based substance can reduce the heat conductivity coefficient of polyurethane foam, increase the flow index of the polyurethane foam and improve the heat insulation performance and flowing performance of the foam. In addition, the synthesis of the organic silicon surfactant provides a new synthesis route for the development of a bio-based foam stabilizer; and the preparation method is simple, easily operated and suitable for industrial production.

The invention relates to the technical field of surfactants, and particularly discloses a preparation method and application of a sulfosuccinate type surfactant, and the preparation method specifically comprises the following steps: (1) esterification reaction: under the protection of inert gas, adding fatty alcohol and carboxylic acid anhydride, introducing gas for 10-20 minutes, adding a difunctional acidic site catalyst, heating to 95-105 DEG C, and reacting for 2-3 hours to obtain an esterification product; and (2) sulfonation reaction: cooling the esterification product to 70-80 DEG C, dropwise adding 20-40wt% of sulfonating agent aqueous solution, preserving heat for 1-2 hours after dropwise adding, and then performing post-treatment to obtain the sulfosuccinate type surfactant. In the preparation process, one-pot preparation is realized by regulating and controlling process conditions and developing a catalyst to efficiently catalyze esterification and sulfonation, intermediate products do not need to be separated between esterification and sulfonation, material loss caused by transfer and separation is avoided, the adopted catalyst can be used for inhibiting premature oxidation of a sulfur source in the sulfonation process, and the sulfonation efficiency is improved. The generation of byproducts is reduced, and the yield is improved.

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.

The invention discloses an anionic surfactant and a preparation method and application thereof.The anionic surfactant has a double-wedge-shaped molecular structure, alkaline earth metal benzene sulfonate serves as a polar hydrophilic wedge tip, a long-chain alkoxy flexible chain segment serves as a hydrophobic wedge group, the surface tension of water can be remarkably reduced in an aqueous solution, and the anionic surfactant has excellent emulsifying capacity. The molecular structure is based on alkaline earth metal benzene sulfonate and has good thermotropic and lyotropic liquid crystallinity, the liquid crystal phase temperature range of the molecular structure exceeds 140 DEG C, and the phase transition temperature and the mesogenic state temperature range can be controlled by adjusting the number of carbon atoms of an alkoxy substituent. When in a mesogenic state, the molecules can form a supramolecular columnar phase through self-assembly aggregation, and the columnar structure can form a transmission channel with ion recognition in the column center direction. By utilizing the characteristic, a novel bionic ion selective conduction membrane can be constructed, and the biomimetic ion selective conduction membrane has wide application potential in the aspects of preparation of ion selective electrodes and chemical sensors and the like.

The invention belongs to the technical field of oily sludge cleaning, and particularly relates to a macromolecular / micromolecular composite surfactant for intensively cleaning oily sludge. A main monomer (such as acrylamide), a hydrophilic monomer (such as 2-acrylamido-2-methylpropanesulfonic acid) and a hydrophobic monomer (such as methacrylic acid long-chain alkyl ester) are mixed, and the macromolecular surfactant is synthesized through free radical polymerization. The specific long-chain structure of the macromolecular surfactant can form larger micelles, colloid and asphaltene can be effectively wrapped, the macromolecular surfactant is compounded with the micromolecular surfactant for use, and mixed micelles with higher solubilizing capacity can be formed, so that the colloid and asphaltene in the high-medium-concentration oily sludge can be efficiently removed, and the high-medium-concentration oily sludge can be effectively removed. Further, the removal rate of total petroleum hydrocarbon is improved. The invention provides a new technology for high-efficiency deep treatment of high-medium-concentration oily sludge.

To provide a multi-type emulsion composition and a preparation method thereof.SOLUTION: Disclosed herein are a multi-type emulsion composition and a preparation method thereof. The emulsion composition is a composition in which a water part and an oil part are mixed and emulsified, the water part includes a non-amphipathic nanoparticle dispersion, the oil part includes an emulsion and the emulsion includes an oil phase or silicone phase as an external phase, the emulsion composition includes the water part as a continuous phase and the oil part as a dispersed phase, and the dispersed phase is surrounded by the non-amphipathic nanoparticles.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of daily chemicals, and particularly relates to high-temperature and neutral alkyl glycoside sulfonate as well as a preparation method and application thereof. The alkyl glucoside sulfonate provided by the invention is obtained by utilizing hydroxyl activity on a glucoside sugar unit to perform chemical modification, and specifically, 1, 3-dichloro-2-propanol is firstly adopted to perform intramolecular crosslinking on alkyl glucoside, and then 3-chloro-2-hydroxy sodium propanesulfonate is adopted to perform anionic modification. The prepared alkyl glycoside sulfonate has the advantages of being mild, low in irritation, high in hard water resistance, good in foaming performance, low in permeation amount on skin and small in residual amount, and can effectively overcome the defects that alkyl glucoside is high in permeability, high in deproteinization and degreasing capacity, large in damage to skin barriers, weak in thickening effect and the like in personal cleaning products; the method is very suitable for being widely used and popularized in daily chemicals.

The invention discloses a limestone-gypsum wet flue gas desulfurization composite synergist and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The limestone-gypsum wet flue gas desulfurization composite synergist is prepared from the following raw materials in parts by weight: 15 to 18 parts of organic acid, 5 to 8 parts of oxidation catalyst, 8 to 10 parts of sodium salt, 5 to 10 parts of magnesium salt, 12 to 15 parts of surfactant, 5 to 8 parts of organic acid alkali metal salt and 4 to 5 parts of dispersing agent. The preparation method comprises the following steps: reacting 2-dodecene-1-yl succinic anhydride with N, N-dimethyl ethylenediamine to generate a monoamide compound, reacting the monoamide compound with epoxy chloropropane to generate a quaternary ammonium salt compound, and reacting the quaternary ammonium salt compound with sodium sulfanilate to generate the surfactant. The limestone-gypsum wet flue gas desulfurization composite synergist prepared by the invention can promote dissolution of calcium carbonate, and shows good desulfurization efficiency.

A thickening agent containing the reaction product of (A) one or more isocyanurate skeleton-containing polyisocyanates and (B) one or more amino-modified silicones represented by formula (1) (therein, each R1 independently represents a monovalent hydrocarbon group having 1-12 carbon atoms or an amino group represented by formula (2) (therein, Q represents a divalent group that has 2-8 carbon atoms and optionally contains therein a divalent amino group represented by -NH-), with at least one R1 in formula (1) being an amino group represented by formula (2); a is an integer of 0-100; b is an integer of 0-5; and c is an integer of 0-5), said thickening agent exhibiting excellent solubility in silicone oils and organic oils, and being capable of inducing the gelation thereof.

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

To provide a slurry composition which exhibits a dispersion effect in a wide range of a pH region, can maintain the effect with time, and enables fine structure of powder to be controlled.SOLUTION: A method for producing a slurry composition is provided in which a slurry composition is produced by mixing a dispersant, powder and a dispersion medium, wherein the dispersant includes a copolymer including an (alkoxy)polyalkylene glycol (meth)acrylate-derived constitutional unit [hereinafter referred to as constitutional unit (i)], and a (meth)acrylic acid-derived constitutional unit [hereinafter referred to as constitutional unit (II)], and when the total of the constitutional units (I) and (II) is 100 mass%, a ratio of the constitutional unit (II) is more than 10 mass% and less than 50 mass%, and a metal ion content in the copolymer is 100 ppm or less.SELECTED DRAWING: None

Drilling fluid compositions may include a weighting agent, a nitrite-containing compound, and an ammonium-containing compound, where the nitrite-containing compound and the ammonium-containing compound may be encapsulated together in copolymer micro-particles forming encapsulated thermochemical compounds, and where at least one property selected from the group consisting of the density, the plastic viscosity, the yield point, the gel strength, and the pH, of the drilling fluid composition may be substantially similar to the at least one property of a comparable drilling fluid composition devoid of the encapsulated thermochemical compounds. Methods for reducing a filter cake from a wellbore surface in a subterranean formation are also provided. The methods may include introducing into the wellbore the drilling fluid compositions, allowing the drilling fluid composition to reach a temperature in the wellbore sufficient for the encapsulated thermochemical compounds to react, where the reaction of the encapsulated thermochemical compounds generates heat and nitrogen gas.

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.

To provide a biomass water-soluble surfactant composition that imparts excellent wettability, permeability and takes care of solubility in water and an environmental issue, and an ink in which the composition is blended, and a paper coating agent.SOLUTION: A water-soluble surfactant composition has a biomass degree of 10% or more, comprising: (A) an acetylene glycol represented by the following formula (1): (wherein R1 and R2 each are an alkyl group having 1 to 5 carbon atoms) and / or an ethoxylated acetylene glycol represented by the following formula (2): (wherein R3 and R4 each are an alkyl group having 1 to 5 carbon atoms, m and n each are positive numbers of 0.5 to 25, and m+n is 1 to 40); and (B) at least one bio-derived polyoxyalkylene-added nonionic surfactant.SELECTED DRAWING: None