56 results about "Fluorosurfactant" patented technology

The invention relates to the technical field of surfactants, in particular to an anti-fog combined liquid for an optical lens and a preparation method and application thereof. The antifogging combined liquid is prepared from the following raw materials in percentage by mass: 0.1%-3% of a fluorine-containing surfactant, 0.01%-0.5% of a silicon-containing surfactant, 0.5%-3% of cation modified phosphate, 20%-60% of a solvent and the balance of deionized water. The antifogging combination liquid provided by the invention is applied to an antifogging wiping wet tissue for lenses, has an excellent antifogging effect, can be uniformly spread, is not obvious in left marks, and is suitable for coated high-end optical lenses.

Surfactant and cleaning compositions for cleaning of food and beverage processing equipment and milking systems. The surfactant composition includes a hydrocarbon surfactant selected from alkyl glucosides, alkyl poly glucosides and amphoteric-based sultaine surfactants, or combinations thereof, and a fluorosurfactant.

The invention relates to an alloy self-repairing antifouling coating for ships and a preparation method of the alloy self-repairing antifouling coating. The alloy self-repairing antifouling coating is prepared from components of raw materials in parts by weight as follows: 40-60 parts of modified epoxy resin, 10-25 parts of multifunctional packaging alloy microspheres, 5-15 parts of a dynamic cross-linking agent, 3-10 parts of nano reinforcing filler and 1-5 parts of an auxiliary. The surface of the modified epoxy resin is modified by a fluorine-containing surfactant and / or polyurethane. The fluorocarbon chain segment and / or the polyurethane chain segment are / is introduced into the epoxy resin, so that the coating is endowed with excellent anti-scouring performance and a long-term self-maintaining antifouling function.

The invention belongs to the field of functional textile materials, and particularly relates to a chlorine-resistant wear-resistant waterproof fabric and a preparation method thereof. The fabric is prepared from the following raw materials in parts by weight: 40 to 70 parts of modified polyurethane elastomer, 20 to 50 parts of fluorine alkene urea alkyl ester, 2 to 6 parts of amino silane, 1 to 3 parts of fluorine-containing surfactant, 1 to 4 parts of cross-linking curing agent and 0.5 to 1.5 parts of flatting agent. A fluorine-containing urea alkyl ester and amino silane cross-linking system is introduced, and a chitosan grafted polyurethane structure with hydrophilicity and flexibility is combined, so that a compact protective coating with slow-release elasticity is constructed, and chlorine resistance, wear resistance and water resistance are remarkably improved. The material has excellent film-forming property and is suitable for complex working conditions of long-term water immersion and frequent friction. The prepared fabric has excellent structural stability and weather resistance, can be widely applied to the fields of swimsuits, outdoor protective clothing and industrial filter cloth, and has good market popularization value.

The present disclosure provides, inter alia, compositions and methods for improving the performance of metal ion batteries. In some aspects, the present disclosure provides an electrolyte comprising a fluorosurfactant additive that is effective to improve battery life, initial capacity, capacity fade, wetting time, and dendrite formation in metal ion batteries.

The invention relates to the technical field of dichlorooctafluorobutane, and provides a preparation process of 2, 3-dichlorooctafluorobutane, and the preparation process comprises the following steps: S100, adding a fluorine phase into a polar phase, and carrying out shearing treatment to obtain a microemulsion; s200, carrying out photoelectric synergistic activation treatment on the microemulsion to obtain 2, 3-dichlorooctafluorobutane; wherein the polar phase comprises a solvent, an electrolyte, a photocatalyst and a stabilizer; the fluorine phase comprises a fluorine-containing substrate, an inert fluorine solvent and a fluorine-containing surfactant. According to the preparation method, the fluorine phase is added into the polar phase containing the photocatalyst and the electrolyte, a stable micro-emulsion system with a nanoscale interface is formed through high-speed shearing, and then photoelectric synergistic activation is implemented, so that precise regulation and control on a perfluoro-2-butene chloride addition reaction path are realized, and the synthesis efficiency and selectivity of the 2, 3-dichlorooctafluorobutane are remarkably improved.

The invention discloses a high-heat-resistance and anti-fouling TPO (thermoplastic polyolefin) automobile interior composite material and a preparation method, relates to the technical field of automobile interior layered artificial leather materials, and aims to meet the requirements of light-color TPO automobile interior materials on heat resistance and anti-fouling performance at the same time. The TPO compact layer comprises the following components: a bio-based material, modified TPO particles, modified polypropylene, nano calcium carbonate, glass beads, a hindered amine light stabilizer, a phosphite ester compound, montmorillonite, nano silicon dioxide, a pigment and polyethylene wax. Two surface coating layers are coated on one surface, and the first layer is prepared from matte resin, silicon dioxide, graphene and nano clay; the second layer comprises bright type resin, semi-bright type resin, an auxiliary agent, a cross-linking agent and water, a fluorine-containing surfactant is adsorbed on the surface of the second layer, and a surface covering layer of a fluorine-containing chain segment is formed; and polypropylene foam is attached to the other surface. The light-color TPO automobile interior composite material can meet the heat resistance, and has the capabilities of resisting pollution and being easy to clean at the same time.

The present invention provides a perfluoropolyether compound that exhibits excellent surface tension reduction ability and excellent foaming properties and foam stability not only when diluted with freshwater but also with seawater, and a fluorine-based surfactant containing the compound. [Solution] A perfluoropolyetherdicarboxylic acid compound represented by the following formula (1) or a salt thereof. JPEG2026104874000023.jpg21118 (In the formula, Rf1 is a perfluoroalkyl group having 1 to 4 carbon atoms. R 1 R is a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms. 2 R is a substituted or unsubstituted hydrocarbon group having 1 to 6 carbon atoms. 3 and R 4 (where n is an integer from 0 to 5.)

The application relates to the technical field of high polymer composite materials, in particular to a modified polytetrafluoroethylene material and a preparation method thereof, the method comprises the following steps of S1, respectively preparing graphene-coated topological insulator powder, fluorine-containing surfactant modified liquid metal microdroplets and bifunctionalized fullerene, S2, mixing the three to prepare a pre-composite powder, S3, mixing with PTFE resin and then cold pressing to form, and S4, performing gradient sintering densification under a protective atmosphere, wherein the temperature rising rate is controlled to be less than or equal to 2 DEG C / min in a key temperature range of 250 DEG C to 340 DEG C, the application successfully solves the problems of multi-phase interface compatibility and high-temperature protection of functional components through unique component design and interface regulation and a gradient sintering process suitable for heat-sensitive components, and the application has the advantages of super-low friction coefficient, extremely high wear resistance, adjustable volume resistivity, significantly improved thermal conductivity and mechanical strength and excellent photo-thermal conversion efficiency.

The invention relates to the technical field of nano carbon materials, and particularly discloses a preparation method of single-walled carbon nanotube slurry, the single-walled carbon nanotube slurry and application thereof.The preparation method of the single-walled carbon nanotube slurry comprises the following steps that low-temperature plasma oxidation treatment is conducted on single-walled carbon nanotubes with the tube bundle diameter smaller than or equal to 100 nm and IG / ID larger than or equal to 50, meanwhile, mechanical shearing is conducted, and the single-walled carbon nanotubes with the tube bundle diameter smaller than or equal to 100 nm and IG / ID larger than or equal to 50 are obtained; dispersing in deionized water to obtain primary dispersion liquid of which the beam splitting index is greater than or equal to 0.80; mixing the primary dispersion liquid, a fluorine-containing surfactant, an amphiphilic ionic liquid and deionized water according to a mass ratio, performing high-pressure homogenization, and performing ultrasonic treatment to obtain a secondary dispersion liquid; and adding a pH response type polyelectrolyte into the secondary dispersion liquid, adjusting the pH value of the system to 6.5-8.0, and carrying out microjet homogenization to obtain the single-walled carbon nanotube slurry with the single-beam content of more than or equal to 70%, the viscosity of 500-5000 cP and D50 of less than or equal to 3 microns. According to the invention, on the premise of not introducing metal impurities and obvious structure defects, efficient beam splitting, long-term stable dispersion and batch consistency of the single-walled carbon nanotubes can be realized.

Provided is a method for producing a fluoropolymer aqueous dispersion in which the content of a fluorine-containing surfactant is reduced, the method comprising at least preparing an aqueous dispersion (E) by heating an aqueous dispersion containing a fluoropolymer, a nonionic surfactant and a fluorine-containing surfactant, the aqueous dispersion (E) containing a phase (E1), a phase (E2) and a phase (E3).

The application discloses a low-surface-tension defoaming agent containing fluorine surfactant and a preparation method thereof. The defoaming agent takes modified fluorine-containing hydrophobic silicon dioxide as a defoaming core, takes perfluoropolyether oil as a carrier, and is compounded with fluorine-containing surfactant and silicone emulsifier. Through a specific adding sequence and the control of temperature and other parameters in the preparation process, the technical problems of poor compatibility of the fluorine-containing component with the defoaming system and easy stable foaming are successfully solved. The defoaming agent prepared by the application has extremely low surface tension and high and persistent defoaming and bubble suppressing performance, and has good emulsion stability, and is suitable for the fields of photoresist, high-end paint and other fields with extremely high requirements on surface tension.

The invention provides a rock debris hydration inhibitor as well as a preparation method and application thereof. The rock debris hydration inhibitor comprises an organic solvent, alkyl silicate, polyether amine, alcohol and a fluorine-containing surfactant.

A method for producing a fluoropolymer, which includes: polymerizing a monomer (I) represented by the general formula (I) below in an aqueous medium substantially in the absence of a fluorine-containing surfactant (except for the monomer (I) represented by the general formula (I)) to obtain a crude composition containing a polymer of the monomer (I); removing a dimer and a trimer of the monomer (I) contained in the crude composition from the crude composition to obtain a polymer (I) in which the content of the dimer and trimer of the monomer (I) is 1.0% by mass or less based on the polymer (I); and polymerizing a fluoromonomer in an aqueous medium in the presence of the polymer (I) to obtain a fluoropolymer:wherein X1, X3, X2, A0, R, Z1, Z2, and m are as defined herein.

The application discloses slick water and a preparation method thereof, and belongs to the technical field of downhole working fluid. Raw materials for preparing the slick water include modified nano silicon dioxide 1-3 parts by weight, a drag reduction agent 0.05-0.2 parts by weight, a fluorine-containing surfactant 0.01-0.02 parts by weight, a cleanup agent 0.01-0.05 parts by weight, a clay stabilizer 0.1-0.5 parts by weight and water 100-110 parts by weight. The provided slick water has good reservoir protection and reservoir wetting reverse characteristics by using modified nano silicon dioxide, long-branched polyacrylamide, the fluorine-containing surfactant and other additives. The application is suitable for slick water fracturing systems of hydraulic fracturing.

The application provides a preparation method of hydrophobic modified perfluoro ether elastomer, and applies to the technical field of perfluoro ether elastomer, and comprises the following steps: S1, mixing fluorine-containing vinyl cross-linkable fluorocarbon surfactant and ethylene glycol monomethyl ether, and stirring to obtain a composite dispersed microemulsion; S2, adding deionized water and vulcanization point monomer to the composite dispersed microemulsion, and stirring to form an emulsion; S3, adding perfluoromethyl vinyl ether and an initiator, and introducing tetrafluoroethylene gas to perform polymerization reaction, so as to obtain a perfluoro ether elastomer emulsion; S4, performing demulsification treatment, washing after acidification by concentrated sulfuric acid, and performing hydrophobic modification, so as to obtain hydrophobic modified perfluoro ether elastomer micro powder; and S5, mixing, mold pressing and secondary vulcanization are sequentially performed on the hydrophobic modified perfluoro ether elastomer micro powder, so as to obtain a hydrophobic modified perfluoro ether elastomer sealing product. According to the application, the perfluoro ether elastomer with low viscosity can be prepared, and the pollution of the fluorine-containing surfactant to the environment is reduced.

Provided is a method for producing an aqueous fluorine-containing polymer dispersion in which the content of a fluorine-containing surfactant is reduced, the method comprising at least a step for heating an aqueous dispersion containing a fluorine-containing polymer, a nonionic surfactant, and a fluorine-containing surfactant, an aqueous dispersion (E) containing a phase (E1), a phase (E2) and a phase (E3) is thus prepared.

The invention discloses a high-surface-tension master batch for a BOPP (biaxially-oriented polypropylene) film and a preparation method of the master batch. The master batch comprises PP resin, nanoscale organic modified montmorillonite, maleic anhydride grafted polypropylene, a composite modifier and an antioxidant, wherein the composite modifier is composed of a fluorine-containing surfactant, a silane coupling agent and an amide slipping agent according to a weight ratio of 1: (0.5-1.5): (2-3). The preparation method comprises the following four main steps: raw material pretreatment, gradient mixing, melt blending and granulation post-treatment. Through unique formula design and process control, the surface tension of the prepared BOPP film can reach 42-45 mN / m when the BOPP film is not subjected to corona treatment, and the problems that a traditional BOPP film depends on corona treatment and the effect of the traditional BOPP film is attenuated are effectively solved. The master batch has the advantages of small addition amount, obvious effect, no influence on the optical and mechanical properties of the film, stable and reliable production process, and obvious economic benefit and popularization and application value.

This invention provides a method for preparing military-grade transparent glass membrane materials, belonging to the field of high-performance composite membrane technology. The invention includes the following steps: S1 heat treatment of the base fabric, S2 coating preparation, and S3 post-treatment. In the coating preparation process, the raw materials used include PTFE emulsion, fluorinated ethylene propylene copolymer, silane coupling agent, glass microspheres, and nonionic fluorinated surfactants. The PTFE coating is prepared through impregnation, drying, baking, sintering, and cooling processes. This invention overcomes the limitation of existing PTFE membrane strength enhancement relying on the addition of a single component through synergistic innovation in formulation and process. By precisely proportioning PTFE emulsion, glass microspheres, and additives, and synergistically optimizing process parameters, a balance of multiple properties—mechanical strength, flame retardancy, flexibility, and environmental adaptability—is achieved, solving the technical pain points in existing technologies such as the incompatibility between high strength and high peelability, and the contradiction between flame retardancy and processability.

A method for producing hollow fine particles containing a fluorine-containing resin and having a large average particle size. The method includes a step A of providing hollow fine particles by dispersing a solution containing a fluorine-containing monomer, an oil-soluble initiator, and a non-polymerizable solvent in water containing a fluorine-containing surfactant and thereby polymerizing the fluorine-containing monomer. Also disclosed are hollow fine particles including a fluorine-containing resin and having an average particle size of 70 nm or greater and 10 μm or smaller. The hollow fine particles each have a porosity of 5% by volume or higher, and the fluorine-containing resin contains a polymerized unit based on a fluorine-containing monomer and a polymerized unit based on a crosslinkable monomer.

Provided is a fluororesin aqueous dispersion production method comprising (1) preparing an aqueous solution containing a water-soluble fluoropolymer by performing first polymerization of a fluoromonomer in the presence of an aqueous medium and a polymerization initiator and substantially in the absence of a fluorine-containing surfactant, and (2) preparing an aqueous dispersion containing a fluororesin by performing second polymerization of the fluoromonomer in the presence of the aqueous solution. The contained amount of the water-soluble fluoropolymer in the aqueous solution is more than 0 mass% to less than 1.0 mass% with respect to the mass of the aqueous solution. The contained amount of the fluororesin in the aqueous dispersion is not less than 15 mass% with respect to the mass of the aqueous dispersion. The polymerization rate of the first polymerization is not more than 3.0 g / (hr·L). Substantially in the absence of a fluorine-free anionic surfactant, the second polymerization is performed until the contained amount of the fluororesin in the aqueous dispersion reaches 10 mass% with respect to the mass of the aqueous dispersion from the start of the second polymerization.

Provided is a method for producing an aqueous fluoroelastomer dispersion, the production method comprising: (1) preparing a fluoropolymer-containing first aqueous dispersion by carrying out a first polymerization of fluorine-containing monomer in a container in the presence of an aqueous medium and a polymerization initiator and substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization; (2) removing the first aqueous dispersion from the container and diluting the removed first aqueous dispersion 3- to 40-fold to prepare a second aqueous dispersion, or diluting the first aqueous dispersion in the container 3- to 40-fold to prepare a second aqueous dispersion and removing the second aqueous dispersion from the container; and (3) preparing a fluoroelastomer-containing third aqueous dispersion by carrying out, in the same container as the container in which the first polymerization was performed or in a container different from the container in which the first polymerization was performed, a second polymerization of fluorine-containing monomer substantially in the absence of fluorine-containing surfactant that lacks a functional group capable of reacting by radical polymerization and in the presence of the second aqueous dispersion, a chain transfer agent having an iodine atom or a bromine atom, and at least one selection from the group consisting of monomers that provide a crosslinkable group containing an iodine atom, a bromine atom, or a cyano group.

The invention discloses a high-temperature-resistant waterproof lock fracturing fluid and a preparation method thereof. The fracturing fluid is prepared from an oleamide surfactant, an erucyl amide surfactant, sodium salicylate, a water blocking inhibitor, a synergist, a pH regulator, a clay stabilizer and water. The water blocking inhibitor is a mixture of methanol and a fluorine-containing surfactant, the fluorine-containing surfactant is of a perfluoropolyether structure, and the fluorine-containing surfactant is selected from one of a structural formula of CF3CF2CF2OCF (CF3) CF2OCF (CF3) COONH4, a structural formula of CF3CF2OCF (CF3) CF2OCF (CF3) COONH4, and a structural formula of CF3CF2OCF2OCF2OCF2COONH4. When the fracturing fluid provided by the invention is applied to deep tight gas reservoir fracturing, on-site construction requirements are met, meanwhile, the water blocking phenomenon can be more effectively inhibited, water blocking damage to a reservoir is reduced, the gas well yield is improved, and the fracturing fluid provided by the invention is higher in temperature resistance and can be applied to the reservoir with the well temperature as high as 200 DEG C.

The invention discloses a hydration heat inhibitor for concrete and a preparation method thereof, and belongs to the technical field of concrete admixtures. The hydration heat inhibitor for concrete is prepared from the following raw materials in parts by weight: 15 to 20 parts of modified nano cellulose, 3 to 5 parts of fluorine-containing surfactant, 8 to 12 parts of sodium gluconate, 0.5 to 1 part of ammonium pentaborate, 0.3 to 1 part of 1-hydroxyethylidene-1, 1-diphosphonic acid and 10 to 15 parts of temperature control material. According to the hydration heat inhibitor disclosed by the invention, the modified nano cellulose, the fluorine-containing surfactant and the temperature control material disodium hydrogen phosphate dodecahydrate in the hydration heat inhibitor are not simply superposed, but form a multi-level and multi-mechanism synergistic system; the fluorine-containing surfactant firstly delays the start of the reaction, after the reaction is started, the modified nanocellulose goes deep into the reaction to reduce the reaction rate, and the temperature control material absorbs and stores heat through phase change and forcefully presses the temperature rise. The hydration heat inhibitor provided by the invention can reduce the hydration heat release rate and significantly reduce the heat release under the condition of not influencing the working performance of concrete.

The invention provides a preparation method of a hydrophobic modified perfluoroether elastomer, which is applied to the technical field of perfluoroether elastomers, and comprises the following steps: S1, mixing a fluorovinyl-containing crosslinkable fluorocarbon surfactant with ethylene glycol monomethyl ether, and stirring to obtain a composite dispersed microemulsion; s2, adding deionized water and a vulcanization point monomer into the composite dispersed microemulsion, and stirring to form an emulsion; s3, perfluoromethyl vinyl ether and an initiator are added, tetrafluoroethylene gas is introduced for a polymerization reaction, and perfluoroether elastomer emulsion is obtained; s4, demulsification treatment is carried out, washing is carried out after acidification with concentrated sulfuric acid, hydrophobic modification is carried out, and hydrophobic modified perfluoroether elastomer micro powder is obtained; and S5, sequentially carrying out mixing, compression molding and secondary vulcanization on the hydrophobic modified perfluoroether elastomer micro powder to obtain the hydrophobic modified perfluoroether elastomer sealing product. According to the process, the low-viscosity perfluoroether elastomer can be prepared, and the pollution of the fluorine-containing surfactant to the environment is reduced.

Provided in the present invention are a non-fluorosurfactant, a preparation method therefor, and the use thereof. The non-fluorosurfactant is a polymer, the main chain of which contains the following structural units: structural units A, structural units B, structural units C and structural units D, wherein the structural units D are linked to each other by means of (I), R1, R2, R4, R5, and R6 are each independently a hydrogen atom or C1-C3 alkyl group, R3 is a hydrogen atom, NH4+, or a monovalent metal ion, and n is an integer of 10-150. The non-fluorosurfactant provided by the present invention has a good effect of reducing the surface tension of an aqueous phase system, and therefore can be used for preparing a fluorine-containing polymer in replacement of fluorine-containing surfactants.

The application discloses a PHA plant-based composite water-based emulsion and a preparation method and application thereof, and belongs to the technical field of water-based polymer dispersions and coating layers. The composite water-based emulsion takes water as a continuous phase, and takes dispersed particles containing a polyhydroxy fatty acid ester component and a rosin-based component as a dispersed phase; the dry solid mass ratio of the polyhydroxy fatty acid ester component to the rosin-based component is 1:4 to 4:1; the solid content is 10 to 70 wt%; the dispersed particle D 50 0.20 to 0.90 microns, D 90 ≤4.0 microns; an emulsion stabilizing system is constructed by means of internal emulsification ion group and rosin-based reactive emulsifier, and the dosage of additional non-fluorine surfactant is 0 to 0.5 wt%. The application can be used for preparing protective coating layers on the surfaces of metals, plastics and composite materials.

To provide a method for producing an aqueous dispersion of fluororesin that can be manufactured without using fluorine-containing surfactants, while suppressing the adhesion of the generated polymer to the reactor. [Solution] A method for producing an aqueous dispersion of fluororesin is provided, comprising: (1) preparing an aqueous solution containing a water-soluble fluoropolymer by performing a first polymerization of a fluoromonomer in the presence of an aqueous medium and a polymerization initiator, substantially in the absence of a fluorine-containing surfactant; and (2) preparing an aqueous dispersion containing a fluororesin by performing a second polymerization of the fluoromonomer in the presence of the aqueous solution, wherein the content of the water-soluble fluoropolymer in the aqueous solution is greater than 0% by mass and less than 1.0% by mass relative to the mass of the aqueous solution; the content of the fluororesin in the aqueous dispersion is 15% by mass or more relative to the mass of the aqueous dispersion; the polymerization rate of the first polymerization is 3.0 g / (hr·L) or less; and the second polymerization is performed substantially in the absence of a fluorine-free anionic surfactant from the start of the second polymerization until the content of the fluororesin in the aqueous dispersion reaches 10% by mass relative to the mass of the aqueous dispersion.

Hard surface, namely floor coating compositions free of fluoro-surfactants and free of zinc cross-link agents are disclosed. More particularly, hard surface, namely floor coating compositions containing an organic polymer comprising (i) styrene or vinyl toluene and at least one monoethylenically unsaturated acid or anhydride, (ii) acrylic polymers or modified acrylic polymers, or (iii) combinations thereof as the floor coating material with a plasticizing agent, solvent and / or a coalescent and / or cosolvent, without the use of zinc cross-link agents and fluoro-surfactants are disclosed. The aqueous compositions and methods of use provide desired floor coating characteristics with enhanced sustainability profiles.

The invention provides a fluorine-containing surfactant, an etching solution and application, the fluorine-containing surfactant comprises a compound with a structure as shown in a formula I: R1-O-CF (R2)-CF (R3)-O-CF (R4)-R5, the formula I is shown in the specification, R1, R2, R3 and R4 are independently selected from one of C1-4 alkyl partially substituted by F, C1-4 alkyl completely substituted by F and F atoms, and the number of carbon atoms in R1, R2 and R4 is more than one; and R < 5 > is one of-SO3H,-COOH,-COONH4 and-SO3NH4. The fluorine-containing surface active agent can form repulsive force with the surface of a filter element material (PTFE and the like) in water, adsorption of the surface active agent in etching liquid such as BOE on the surface of the filter element material (PTFE and the like) is reduced, then stable etching liquid components such as BOE are kept, and the service life on the line is prolonged.