36 results about "Hydrophobic polymer" patented technology

The present application relates to a kind of chemical makeup-removing soft wipes and preparation method thereof, belong to the technical field of cosmetic products.The present application is with negative charge polyelectrolyte gel solution modification nano metal oxide, with positive charge polyelectrolyte gel solution modification mesoporous nano silicon oxide, two kinds of modified nanometer materials are mixed with core layer hydrophilic polymer and shell layer hydrophobic polymer respectively in spinning process, by coaxial spinning, three-stage traction stretching and cutting, functional short fiber is prepared, again by non-woven fabric processing technology and ultrasonic activation treatment is made into chemical makeup-removing soft wipes;When the soft wipes meet water, the built-in potential and nano channel between fiber core and shell, which are constructed by the two kinds of modified nanometer materials, can break the water molecule aggregation state and convert it into small molecule water, and small molecule water can quickly penetrate cosmetic oil film, so as to realize the "self-dissolution" makeup-removing effect without chemical solvent dependence.

The object of the present invention is to provide an antistatic agent that imparts excellent antistatic properties to thermoplastic resins. [Solution] An antistatic agent (Z) comprising a block polymer (A) having a block of hydrophobic polymer (a) and a block of hydrophilic polymer (b) as constituent units, wherein the hydrophobic polymer (a) consists of polyolefin (a2) and polyamide (a1), and the polyamide (a1) consists of at least two constituent monomers selected from the group consisting of lactam (a101) having 4 to 20 carbon atoms and aminocarboxylic acid (a102) having 2 to 12 carbon atoms.

A method of forming a synthetic brochosome is provided, the method comprising combining (i) a polymer solution comprising a solvent and an amphiphilic polymer having a hydrophobic polymer component and a hydrophilic polymer component, with (ii) an external fluid immiscible with the solvent, thereby forming droplets of the polymer solution in the external fluid; removing the external fluid and the solvent from the droplets, thereby providing a synthetic brochosome. Also provided is a synthetic brochosome and a composition comprising the synthetic brochosome.

A calibration device for optical imaging applications, including a body forming separate areas and a material formed on the areas, the material includes at least one polymeric material and at least one dye visible in a spectral range of wave-lengths including between 500 nm and 2000 nm included arranged on the areas, the at least one polymer forms a continued matrix, the at least one dye is homogeneously distributed within the polymer matrix, in a predetermined weight percentage by weight of the hydrophobic polymer in the material, and the weight percentage of said at least one dye is different in each of the areas.

The invention discloses a membrane material, a formic acid sensor and a formic acid detection method. Comprising a hydrophobic polymer, a pH indicator and an amphiphilic surfactant, the acid-resistant and high-humidity-resistant formic acid sensing film based on the phase separation water storage structure is used for detecting formic acid, an indicator of the sensing film cannot be inactivated under the acidic condition, and the sensing film is simple to prepare, high in response speed and low in cost; by introducing the amphiphilic surfactant, a hydrophobic / hydrophilic separation layer is formed on the surface of the film, permeation of water molecules in ambient air is inhibited, a water molecule exchange channel existing inside and outside a traditional formic acid sensing film based on a pH indicator is cut off, and the stability of the film structure is kept; the water storage layer is used for replacing environment combined water, and accurate monitoring of formic acid under the high-humidity condition is guaranteed.

This invention discloses a neutron shielding material with a biomimetic chlorophyll structure and its preparation method, belonging to the field of artificial fiber technology. The method includes: S1, surface hydrophobic modification of boron-containing compounds and transition metal carbon / nitrides using a bifunctional silane coupling agent; S2, preparation of a core layer suspension containing modified powder and a shell layer solution containing a hydrophobic polymer; S3, construction of a wet precursor fiber membrane with a core-shell structure using coaxial electrospinning; S4, induction of solvent directional crystallization through directional temperature gradient field cryogenic treatment, followed by sublimation drying to form a biomimetic layered porous structure inside the core layer; S5, heat treatment to solidify the biomimetic layered structure. This invention solves the interfacial compatibility problem between inorganic fillers and organic matrices through the synergistic effect of interfacial chemical modification and biomimetic structural regulation, achieving spatially ordered arrangement of functional components. The resulting material possesses excellent lightweight properties, structural stability, and neutron shielding effectiveness.

The object of the present invention is to provide an antistatic agent that imparts excellent antistatic properties to thermoplastic resins. [Solution] An antistatic agent (Z) comprising a block polymer (A) having blocks of hydrophobic polymer (a) and blocks of hydrophilic polymer (b) as constituent units, an alkyl (alkyl with 6 to 18 carbon atoms) benzenesulfonate (S1), and at least one salt (S2) selected from the group consisting of alkali metal halides and alkali metal halides.

The invention relates to a hollow-fiber membrane, having a membrane material which comprises a hydrophobic polymer and a hydrophilic polymer. The hydrophobic polymer comprises a polysulfone, and the hydrophilic polymer comprises a polyvinylpyrrolidone in a proportion of 1-9 wt.%, wherein the content of polyvinylpyrrolidone in the layer which is near the surface of the inner lumen of the membrane equals 35 wt.% or more according to the XPS measuring method, and the albumin filter coefficient equals less than 0.01, measured according to the method specified in the description. The invention additionally relates to a hollow-fiber dialyzer comprising such a membrane.

The present application provides an amphiphilic block polymer nanosphere, a preparation method and an application. The amphiphilic block polymer nanosphere comprises a hydrophobic polymer core, a fluorine-containing crosslinked shell layer covering at least part of the outer surface of the hydrophobic polymer core, and a thermally responsive segment polymer arm and a reactive adhesive segment polymer arm grafted to at least part of the outer surface of the fluorine-containing crosslinked shell layer. The photovoltaic encapsulation adhesive film comprising the amphiphilic block polymer nanosphere of the present application can simultaneously have high adhesion and high barrier properties.

This invention relates to a hollow fiber membrane having a membrane material comprising a hydrophobic polymer and a hydrophilic polymer, wherein the hydrophobic polymer comprises polysulfone, and the hydrophilic polymer comprises polyvinylpyrrolidone in a proportion of 1% to 9% by weight, wherein the content of polyvinylpyrrolidone in the layer near the surface of the membrane lumen is 35% by weight or more according to XPS measurement, and the albumin filtration coefficient is less than 0.01 according to the method given in the specification. Furthermore, this invention relates to a hollow fiber dialyzer comprising such a membrane.

Disclosed here are polymer particles comprising a plurality of polymeric stabilizing components, each polymeric stabilizing component comprising one or more hydrophilic polymer chains; and a plurality of hydrophobic polymer chains, each hydrophobic polymer chain covalently bonded to one or more of the polymeric stabilizing components, wherein the polymer particles are monodisperse and have a coefficient of variation based on their diameter of less than 20%. Also disclosed herein is a method of generating polymer particles.

This invention discloses a rapid self-healing waterproof and breathable membrane structure for electronic devices, belonging to the field of functional thin film materials and electronic device protection technology. The structure comprises, from top to bottom, an electrostrictive hydrophobic dynamic layer, a capillary self-pumping microchannel layer, and a piezoelectric sensing and support substrate. The electrostrictive hydrophobic dynamic layer is composed of an ion-conductive self-healing hydrophobic polymer, which can deform in response to electrical signals to repair damage. The capillary self-pumping microchannel layer contains a biomimetic fractal superhydrophilic microchannel network, which can directionally migrate intruding liquid water to the edges for drainage through capillary action. The piezoelectric sensing and support substrate is used to sense pressure differences and vibrations. Each layer is electrically connected to a micro-control system, forming an intelligent sensing-response system that can automatically monitor damage and trigger repair. This invention integrates self-healing, active drainage, and intelligent sensing, significantly improving the reliability and service life of the waterproof and breathable membrane in complex environments.

The present invention relates to a drug-eluting nanoengineered medical implant / contact device. The device comprises a nanocomposite and a drug, wherein the nanocomposite comprises hydrophilic polymer domains, hydrophobic polymer domains, water pores, and boundary charged double layers; wherein when the drug is hydrophilic, at least 80% of the drug partitions in the boundary charged double layers formed at the boundary interface of the hydrophilic polymer domains and water pores, and when the drug is hydrophobic, at least 80% of the dmg partitions in the boundary charged double layers formed at the boundary interface of the hydrophobic polymer domains and water pores. The device is configured to sustain the release of the drug at high precision and long duration.

The effect of a cationic hydrophobic polymer on improving sensitivity and selectivity toward the electrochemical detection of cannabinoid analytes, e.g. Δ9-tetrahydrocannabinol (Δ⁹-THC), has been investigated. Herein we report a rapid, inexpensive and stable method for the detection of 10 – 1000 ng / mL of cannabinoid analytes, e.g. Δ9-tetrahydrocannabinol (Δ⁹-THC), 5 in buffer solutions and in human saliva.

The present disclosure provides anti-methanogenic compositions comprising: (i) a haloform; (ii) a glycol, alcohol, wax, oil, triglyceride, or combination thereof; and (iii) a hydrophobic polymer. The disclosure also concerns animal feed additives and nutritional preparations for ruminant animals comprising such anti-methanogenic compositions as well as methods for making such compositions. The disclosure further concerns methods for reducing methane emissions from a ruminant.

The invention relates to a hollow fiber membrane for separating blood plasma from blood, comprising a blood contact layer and a support layer, each having a hydrophobic polymer, a hydrophilic polymer and vitamin E, and to a method for producing this hollow fiber membrane for providing a hollow fiber membrane. The hollow fiber membrane is characterized by a reduced hemolysis activity, so that the hollow fiber membrane can be advantageously used in plasmapheresis methods.

The application provides a nanofiber membrane for efficiently and uniformly delivering and slowly releasing collagen and a preparation method thereof, the nanofiber membrane has a double-layer structure, the nanofiber membrane base layer is hydrophilic, the nanofiber membrane surface layer is hydrophobic, and collagen mist beads or collagen fiber filaments are distributed in the nanofiber membrane base layer. The fiber membrane has a base layer and a surface layer structure, the base layer is rich in a higher amount of collagen, and meanwhile, the hydrophilic polymer material is used to deliver collagen protein by means of the electrospinning technology for nanofiber structure, so as to achieve the purpose of efficiently and uniformly dispersing collagen to the skin; the hydrophobic polymer material is used to prepare the surface layer of the nanofiber membrane by means of the electrospinning technology, the collagen protein skin area is effectively covered, a waterproof and breathable layer is formed, water loss to the outside is prevented, a moist environment is provided at the same time with breathability, the skin can freely breathe, and the absorption of collagen protein by the skin is promoted.

The application discloses a carbon-coated nickel-based super-hydrophobic catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts and high-alcohol synthesis. In the application, nickel salt and citric acid are dissolved in water, and then the obtained mixed solution is heated and stirred to obtain a precursor; the precursor is calcined under an inert atmosphere to obtain a carbon-coated nickel-based catalyst; and the carbon-coated nickel-based catalyst is ball-milled with polytetrafluoroethylene to obtain a carbon-coated nickel-based super-hydrophobic catalyst. In the application, the carbon-coated nickel-based catalyst is prepared first, and then coupled with the hydrophobic polymer polytetrafluoroethylene to form a new super-hydrophobic catalyst. The nickel-based catalyst and the polytetrafluoroethylene are ball-mixed, the hydrophobic performance of the nickel-based catalyst is improved, the water "poisoning" phenomenon of the catalyst is relieved, the coupling of low-alcohol to high-alcohol is further promoted, the yield of high-alcohol and the selectivity of C6+ high-alcohol are improved, and the application prospect is wide.

The application discloses a multi-filtering-mode river multifunctional sewage treatment system and a treatment method thereof. The multi-filtering-mode river multifunctional sewage treatment system comprises a group of soft enclosures arranged along a river in sequence, and a plurality of independent water purification areas are formed; the soft enclosures are internally provided with phytofloating plants and ecological plant floating beds; and the soft enclosures are provided with vertical bank slope automatic liftable river water body filtering devices. The system realizes step-by-step filtering and regional division of water bodies, and improves filtering efficiency through innovative filtering cloth design and application of the multi-channel soft enclosures. Meanwhile, the system adopts hydrophilic polymer materials and super-hydrophobic polymer materials, and combines biological filtering with physical filtering, so that water quality is effectively purified. The system is also designed with in-situ functional treatment areas, water plants are planted, and functional fillers are added, so that the water treatment efficiency and effect are improved.

This invention relates to the field of battery technology, and in particular to a modified zinc anode, its preparation method, and an aqueous zinc-ion battery. The modified zinc anode includes a zinc anode and an interface layer disposed on both sides of the zinc anode; the interface layer comprises zinc-philic metal nanoparticles, a hydrophobic polymer binder, and a conductive agent. This invention involves coating a zinc anode with a composite interface layer composed of zinc-philic metal nanoparticles, a hydrophobic polymer, and a small amount of conductive agent. The zinc-philic metal nanoparticles are Zn... 2+ The hydrophobic polymer acts as a transport medium and interface stabilizer, isolating the zinc anode from direct contact with water in the electrolyte, while also serving as a binder to ensure the coating is well applied to the anode surface.

The application discloses a lithium iron phosphate positive electrode material and a preparation method and application thereof, and relates to the technical field of lithium ion batteries. The application utilizes the "reactivity bonding" and "in-situ pore-forming-conductive synergistic effect", and through functional pretreatment of a fine slurry containing small particles by a surfactant and a hydrophobic polymer, the fine slurry can produce a synergistic effect with a functional nitrogen source in a subsequent granulation and sintering carbonization process, a graphitized nitrogen-doped carbon coating layer with high conductivity is constructed, the internal resistance can be significantly reduced, rich mesopores are formed in the material, and the rapid transmission of lithium ions is ensured; the high-density and low-porosity spherical secondary particles are constructed through double-stage particle granulation, the tap density and processing performance can be improved, a stable hydrophobic surface is formed, iron elution is inhibited, and the service life of the material is improved. The application can solve a series of contradictory problems such as conductivity, ion migration rate, tap density and interface stability.

This application provides a wood-based decorative material that has high strength and retains the appearance of wood. The wood-based decorative material comprises wood material and a hydrophobic polymer injected into the wood material, wherein the hydrophobic polymer is in contact with the surface of the cell wall of the tubular cells on the intracellular side when the tubular cells of the wood material have cavities.

This invention relates to the field of organic pigment preparation technology, specifically to a modified organic pigment and its preparation method. This invention overcomes the problems of easy quenching, poor migration resistance, and poor dispersibility of fluorescent pigments. In an isopropanol system, long-chain alkylsilanes and epoxysilanes are co-hydrolyzed to pre-crosslink the pigment surface, forming a flexible transition layer with a spatial buffering effect. Then, isocyanate-modified fluorescent monomers are modified with polyetheramine to prepare fluorescent intermediates with long-chain structures. The deformation ability of the flexible chain segments penetrates the gaps in the hybrid layer. The modified pigment is introduced into an isoalkyl oil phase containing a polymeric dispersant to form reverse microemulsion droplets, resulting in in-situ crosslinking to construct a highly crosslinked hydrophobic polymer barrier on the outermost layer. This enhances the thermo-photodynamic stability and chemical migration resistance of the pigment, achieving excellent nighttime fluorescence gain while improving its compatibility in engineering plastics.

The effect of a cationic hydrophobic polymer on improving sensitivity and selectivity toward the electrochemical detection of cannabinoid analytes, e.g. Δ9-tetrahydrocannabinol (Δ⁹-THC), has been investigated. Herein we report a rapid, inexpensive and stable method for the detection of 10 – 1000 ng / mL of cannabinoid analytes, e.g. Δ9-tetrahydrocannabinol (Δ⁹-THC), 5 in buffer solutions and in human saliva.

[Problem] To obtain a substrate cleaning liquid capable of cleaning a substrate and removing particles. [Solution] A substrate cleaning liquid comprising a hydrophobic polymer (A), a polar compound (B), and a solvent (C): wherein the polar compound (B) is soluble in water. The substrate cleaning liquid is a highly functional material that can be used in a semiconductor device production step of a nanotechnology process, for example, a step of producing a semiconductor device that controls liquid crystals, quantum dots, or OLED displays formed on a substrate.

The application discloses an amphiphilic hydrogel electrolyte and a preparation method and a water-based zinc-manganese battery. The method comprises the following steps: providing a surfactant and an initial electrolyte solution; the electrolyte salt solution is a mixed solution of an electrolyte zinc salt and an electrolyte manganese salt; the surfactant is dissolved in the initial electrolyte salt solution to obtain an electrolyte salt solution containing the surfactant; hydrophobic polymer chain monomers, hydrophilic polymer chain monomers and initiators are sequentially dissolved in the electrolyte salt solution containing the surfactant, and after heating treatment, an amphiphilic hydrogel electrolyte is obtained. The above method only uses the surfactant as a physical crosslinking agent, so that the prepared amphiphilic hydrogel electrolyte has the characteristics of segment dynamic movement, can well control ion transport and optimize electrochemical performance. Moreover, the preparation is achieved by a one-pot method, and the method has the advantages of precise control of the state of the polymer, high repeatability, accurate control of ion concentration, adjustable ion state, and improved electrochemical performance of the electrolyte.

This invention provides an inkjet ink that can achieve both scratch resistance and print density. [Solution] An inkjet ink according to one embodiment of the present invention is an aqueous ink containing a pigment, an aqueous solvent, an alkaline agent, and a dispersion resin. The dispersion resin is a block polymer having a hydrophobic polymer block containing benzyl methacrylate and a hydrophilic polymer block containing methacrylic acid. The acid value of the block polymer is 180 mg KOH / g or more and 280 mg KOH / g or less, and the neutralization rate of the block polymer is 40% or more and 60% or less.

The present application relates to a self-driven nanometer micromotor for water lock solution of tight gas reservoir and a method for water lock solution of tight gas reservoir, the self-driven nanometer micromotor for water lock solution of tight gas reservoir is a double-section cone structure coated with a core-shell, which is composed of, from inside to outside, a motion control section: a CaCO3 thin layer at the tip of the cone cannot react with water, controlling the generated bubbles to push the motor to directional advance; an Al4C3 reaction section: the atomic ratio of aluminum and carbon is 4:3, the crystal form is face-centered cubic structure, and the cone is the rear section of the motor, with a diameter of 450-2000 nm; a delay coating layer: a polypyrrole (PPY) copolymer film or a polyaniline (PANI) copolymer film, the copolymer film is a porous hydrophobic polymer macromolecular outer layer, coated outside the conical CaCO3-Al4C3 core structure, prolonging the contact time of the nanometer micromotor with water and promoting the motor to push deeper. The present application not only can go deep into the fissure to solve water lock, but also can significantly improve the gas production and recovery efficiency.