180 results about "Polymeric surface" patented technology

The invention provides a non-fluoropolymer, a non-fluoropolymer composite diaphragm and application, the non-fluoropolymer comprises a polymer A and a polymer B at least partially coating the surface of the polymer A, the crosslinking degree of the polymer A is X1, the crosslinking degree of the polymer B is X2, 5% < = X1 < = 10%, and 50% < = X2 < = 60%; the non-fluorine polymer composite diaphragm comprises a base membrane and a coating layer coated on at least one side of the base membrane. The non-fluorine polymer particles have high swelling rate at high temperature and reversible characteristics of absorbing and releasing electrolyte, when the non-fluorine polymer and the non-fluorine polymer composite diaphragm are applied to a battery cell, when the battery cell is heated abnormally, the non-fluorine polymer swells at high speed and blocks an ion shuttle channel, further temperature deterioration is avoided, and the service life of the battery cell is prolonged. Meanwhile, when the temperature returns to normal, the non-fluorine polymer particles can recover to the original morphology and recover an ion shuttle channel, so that the subsequent cycle performance of the battery cell is not influenced.

The invention belongs to the technical field of flexible electronic materials, and particularly relates to an adsorption layer for promoting patterning and separation of liquid metal, a preparation method of the adsorption layer and a recoverable flexible liquid metal sensing device. The metal organic framework material-polymer is used as an adsorption layer for promoting patterning and separation of the liquid metal, and the characteristics that the liquid metal is adsorbed on the surface of the polymer and repelled on the surface of the metal organic framework material are achieved by adjusting surface functional groups and roughness. And meanwhile, high-precision patterning is carried out on the polymer through a 3D printing or photoetching technology, and a high-precision liquid metal pattern is obtained under selective adsorption of the liquid metal. Besides, according to the dissolution characteristics of the metal-organic framework material and the polymer, a two-step recovery method for dissolving the polymer, separating the liquid metal from the polymer and then dissolving and separating the metal-organic framework material is designed, and the scheme of the invention is beneficial to the integration and sustainable development of the liquid metal-based electronic device.

A stimulation fluid to prevent coacervate formation in a subterranean formation. The stimulation fluid generally comprises nanobubbles, a cationic component, and an anionic component. The cationic component may be a biocide, scale control additive, clay control additive, water control or friction reducing polymer, surfactant, or a combination of cationic components. The anionic component may be a surfactant, scale inhibitor, chelant, water control or friction reducing polymer, or a combination of anionic components.

The invention relates to the technical field of in-vitro diagnostic kits, in particular to hollow porous monodisperse carboxyl polystyrene microspheres, a preparation method and application of the hollow porous monodisperse carboxyl polystyrene microspheres in a kit for quantitatively detecting MxA. The preparation method of the microspheres comprises the steps that firstly, hydrophilic polystyrene microspheres are prepared to serve as stable particles; then fully mixing the Pickering particles with a first oil phase to form Pickering stable particles; then a surfactant and a second oil phase are added, the mixed system is stirred at a high speed, and the second oil phase permeates into the surfaces or pores of Pickering stable particles through interface interaction and molecular diffusion; under the action of an initiator, the polymeric monomers are subjected to a polymerization reaction, the low-boiling-point organic solvent is evaporated out along with temperature rise, and a polymer with a core part of a hollow structure and a shell layer of a porous structure is formed; and adding a carboxyl-containing functional monomer to form a hydrophilic polymer chain on the surface of the polymer, thereby finally obtaining the hollow porous monodisperse carboxyl polystyrene microspheres.

The invention discloses an interface in-situ assembled gel and nanoparticle composite polyether sulfone membrane as well as preparation and application thereof, and belongs to the technical field of nano material and membrane separation. According to the invention, a gel and nanoparticle composite structure is constructed in situ on the surface of the membrane and in pores through a phase separation strategy for the first time, a gel layer of a main body is formed by crosslinking polyphenol and zirconium oxychloride, and nanoparticles are formed by complexing unoccupied sites of polyethyleneimine and polyphenol; a nucleation site is provided for in-situ construction of the gel layer on the surface. Compared with a surface modification post-treatment method, the method disclosed by the invention has the advantages of process integration, coating stability and the like; compared with a mixed matrix membrane constructed by zeolite and carbon nanotubes, agglomeration and polymer embedding are avoided, and a coating constructed by mixing hydrophilic gel and nanospheres can be formed on the surface of the polymer.

A stimulation fluid to prevent coacervate formation in a subterranean formation. The stimulation fluid generally comprises nanobubbles, a cationic component, and an anionic component. The cationic component may be a biocide, scale control additive, clay control additive, water control or friction reducing polymer, surfactant, or a combination of cationic components. The anionic component may be a surfactant, scale inhibitor, chelant, water control or friction reducing polymer, or a combination of anionic components.

The application discloses a carboxyl modified nano oil displacement agent which is composed of a nano silicon dioxide skeleton and a functional group connected to the nano silicon dioxide skeleton, wherein the functional group is -RCOOM, R is CH2 or C2H4, and M is one of Li, K and Na. The application also discloses a preparation method of the carboxyl modified nano oil displacement agent, which comprises the following steps: (1) preparing a hydroxyl silicon dioxide nanoparticle dispersion liquid; (2) preparing an amino modified nano silicon dioxide solution, and obtaining amino modified nano silicon dioxide particles after first post-treatment; and (3) dispersing the amino modified nano silicon dioxide particles in water, adding a halogen acetic acid monovalent salt, and then performing reaction and second post-treatment to obtain the carboxyl modified nano oil displacement agent. The oil displacement system is composed of the carboxyl modified nano oil displacement agent, a polymer, a surfactant and water, wherein the carboxyl modified nano oil displacement agent accounts for 0.05-0.3%, the polymer accounts for 0.1-0.3%, the surfactant accounts for 0.1-1%, and the rest is water.

The application belongs to the technical field of seawater desalination, and more particularly relates to a zwitterionic copolymer hydrogel with high pore connectivity and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding a crosslinking agent and a photoinitiator into a mixed aqueous solution containing methacryloyloxyethyl trimethyl ammonium chloride, 2-acrylamido-2-methyl propane-1-sodium sulfonate and Na2SO4, mixing uniformly, and performing polymerization under ultraviolet light to form a polymer; and (2) forming a photothermal layer on the surface of the polymer, and post-treating to obtain the zwitterionic copolymer hydrogel with high pore connectivity. The hydrogel prepared by the application has the characteristics of high pore connectivity, and can still maintain excellent evaporation rate in the process of continuous operation; and has excellent salt shrinkage resistance. The hydrogel prepared by the application has wide application in the fields of water treatment, seawater desalination and fresh water recovery.

The application discloses a demetallization agent, a preparation method and application method thereof, and a use of a demetallization auxiliary agent. The demetallization agent comprises a core-shell structure, is composed of an organic material with a chelating functional group, and comprises a core and a shell layer. The core is a sub-micron organic polymer particle, and the shell layer is an amphiphilic polymer with a functional group of strong electrostatic adsorption and metal chelating capacity connected to the surface. The preparation method of the demetallization agent comprises the steps of initiating connection and preparing the demetallization agent. The demetallization auxiliary agent has strong chelating capacity in an aqueous phase, and can transfer the metal chelated by the demetallization agent to the demetallization auxiliary agent. In addition, the application of the demetallization agent and the demetallization auxiliary agent to non-acid crude oil demetallization is disclosed. The demetallization agent and the demetallization auxiliary agent are suitable for removing metals such as nickel and vanadium in crude oil, have high demetallization agent grafting rate, increase the contact time of the demetallization agent and the oil phase, and have the characteristics of low cost, easy production and environmental friendliness.

A cured coating film having an excellent water and oil repellency, an excellent slipperiness, and excellent chucking properties can be formed by a surface treatment agent that contains: a fluoropolyether group-containing polymer having at least one group represented by formula (1) at at least one terminal of the molecule (In the formula, Y is a divalent organic group containing an o-, m-, or p-phenylene group; R is a C1-4 alkyl group or a phenyl group; each X is independently a hydroxyl group or hydrolyzable group; and a is 2 or 3.), and / or a partial (hydrolysis) condensate of this polymer.

The present disclosure provides lipid assemblies suitable for delivery of therapeutic agents to hematopoietic stem and progenitor cells (HSPCs), wherein the lipid assemblies comprise a neutral polymer surface lipid. The present disclosure also provides therapeutic and diagnostic uses related to the lipid assemblies.

This invention provides a non-fluoropolymer, a non-fluoropolymer composite separator, and their applications. The non-fluoropolymer includes polymer A and polymer B at least partially coating the surface of polymer A. The degree of crosslinking of polymer A is X1, and the degree of crosslinking of polymer B is X2, where 5% ≤ X1 ≤ 10% and 50% ≤ X2 ≤ 60%. The non-fluoropolymer composite separator includes a base film and a coating layer applied to at least one side of the base film. The non-fluoropolymer particles of this invention exhibit a high swelling ratio at high temperatures and also possess reversible electrolyte absorption and release characteristics. When the non-fluoropolymer, non-fluoropolymer composite separator is applied to a battery cell, the non-fluoropolymer swells rapidly when the battery cell experiences abnormal temperature rise, blocking the ion shuttle channels and preventing further temperature deterioration, thus improving the safety performance of the battery cell. Simultaneously, when the temperature returns to normal, the non-fluoropolymer particles can recover their original morphology, restoring the ion shuttle channels, thereby not affecting the subsequent cycle performance of the battery cell.

Methods and systems for producing optical constructions on optical substrates, one such method comprising: (a) microvalving droplets of a dye-containing liquid formulation onto an optical surface of the optical substrate to form a wet continuous layer; and (b) treating the wet layer to produce a continuous, dry, dye-containing layer on the optical surface, wherein the optical surface is a curved surface, and wherein the optical surface is a polymeric surface.

The present invention relates to a conjugate for immunodetection, an immunodetection sensor including same, and an immunodetection method and an immunodetection signal amplification method using same. Specifically, the present invention has the technical features of: a conjugate for immunodetection based on lateral flow assay, the conjugate including nanoparticles, a polymer conjugated to the nanoparticles and including a plurality of enzymes, and a first binder conjugated to the surface of the polymer and specifically binding to a target specimen; and a use thereof. Accordingly, detection sensitivity is remarkably improved, thereby enabling ultra-high-sensitivity detection, and various antigens and diseases can be simply, quickly, and effectively diagnosed, so that the present invention can be advantageously used.

A polymer-metal composite includes localized pre-preparation of a metal-containing substrate that includes forming, on the contact surface thereof, a set of salient asperities that are distributed chaotically or regularly with an area density of from 50 to 1000 asperities / mm2. In profile, asperities are in the form of protuberances and recesses with shaped contours and a maximum cross-sectional dimension of from 20 to 100 microns, the walls of the majority of protuberances and recesses being oriented at an angle of 45-90° to the contact surface. A polymeric mass is applied in a partially melted state and with a thickness of not less than 10 microns to the salient asperities with a bonding portion of said polymeric mass penetrates between the salient asperities, covering the exterior thereof and, by virtue of fluidity, occupying the vacant spaces of the pre-prepared protuberances and recesses.

The invention relates to thermoplastic polymer sheet extrusion molding equipment which comprises a supporting frame, thermal laminating mechanisms and pressing mechanisms, the thermal laminating mechanisms and the pressing mechanisms are arranged on the supporting frame, and each thermal laminating mechanism comprises a first heating part and an extrusion part; the first heating component is located on one side of the extrusion component, the first heating component and the extrusion component are arranged in a preset gap mode, the first heating component transmits heat energy towards the extrusion component, and the first thermoplastic polymer target sheet and the second thermoplastic polymer target sheet move oppositely in the preset gap, so that the first thermoplastic polymer target sheet and the second thermoplastic polymer target sheet enter the preset gap. The surfaces of the first thermoplastic polymer target sheet and the second thermoplastic polymer target sheet are accurately heated to be in a molten or semi-molten state, when the first thermoplastic polymer target sheet and the second thermoplastic polymer target sheet collide in a preset gap, the first thermoplastic polymer target sheet and the second thermoplastic polymer target sheet are active, the molten polymer surfaces make direct contact and are stacked after colliding to enter the extrusion component to output the composite sheet, and the pressing mechanism compacts at least one layer of composite sheet. And the layers are combined more compactly and flatly.

The present application relates to a kind of powder liquid type dishwashing condensation beads and its preparation method, the powder liquid type dishwashing condensation beads include: powder: basic salt, percarbonate, acrylic polymer, surfactant, washing aid;Concentrated solution: synergist, chelating agent, hexanediol, water balance;Wherein, the acrylic polymer is selected from one or more of acrylic acid homopolymer or acrylic acid / sulfonic acid copolymer;The synergist is maleic acid diisooctyl sulfonate sodium;The chelating agent is amino acid derivative chelating agent.The present application is obtained by the component of different form of powder, concentrated solution and is compounded to get condensation bead, the basic salt in the powder cavity of the present application, percarbonate and synergist in liquid cavity can improve the tension of surfactant in powder cavity, to produce synergistic effect, improve the penetration and wetting area of surfactant on the surface of tableware, reach the effect of strong and efficient stripping and removing stain.

The present application relates to a kind of temperature-resistant, salt-tolerant composite oil displacement agent and its preparation method, the temperature-resistant, salt-tolerant composite oil displacement agent includes by weight percentage: zwitterionic hydrophobic association polymer 0.05-0.2%, surfactant 0.1-0.6%, surfactant additive 0.05-0.2%, the rest is water.The zwitterionic hydrophobic association polymer in the present application can significantly enhance the salt tolerance of composite oil displacement agent through the electrostatic balance effect between ions in zwitterionic structure, its rigid naphthalene ring structure can effectively improve the thermal stability of system under high temperature environment.The present application uses 5-norbornene-2-carboxylic acid as surfactant additive, which can reduce oil-water interfacial tension, improve the stripping capacity of oil displacement agent on rock surface crude oil, effectively improve oil washing efficiency.At the same time, the oil displacement agent can still maintain high viscosity under high temperature and high salt conditions, further improve the temperature resistance of oil displacement agent.

The present application belongs to the technical field of polymer surface metallization, and particularly relates to a preparation method of polymer surface metallization coating based on cold gas dynamic spraying and friction stir processing. The method comprises the following steps: (1) using a cold gas dynamic spraying device, spraying metal powder (such as Al, Cu, Ti, Ag, Sn, etc.) to the surface of a polymer substrate (such as PEEK, PEI, PA6, ABS and their composite materials, etc.) under certain conditions to form a cold sprayed metal coating; (2) using a friction stir welding center to perform friction stir processing on the deposited cold sprayed coating and the interface between the coating and the polymer substrate, so as to obtain a high-conductivity and high-bonding-strength metallized coating on the surface of the polymer substrate. The method combines the advantages of cold gas dynamic spraying technology and friction stir processing technology, and opens up a new process route for polymer and polymer-based composite material surface metallization.

Polymer-ceramic composites and methods of making such materials are provided. The polymer-ceramic material includes a polymer substrate and a ceramic located within an interior volume of the polymer substrate and on a polymer surface.

A method of producing an optical construction on an optical substrate, one such method comprising: (a) microvalving droplets of a liquid formulation comprising a photochromic dye onto an optical surface of the optical substrate to form a wet continuous layer; and (b) treating the wet layer to produce a continuous, dry photochromic dye-containing layer on the optical surface, where the optical surface is a curved surface, and where the optical surface is a polymeric surface.

The application belongs to the technical field of all-solid-state lithium batteries, and relates to a composite binder, a preparation method thereof and application of the composite binder in all-solid-state lithium batteries. The composite binder is that a surfactant is attached to the surface of a halogenated hydrocarbon polymer, and the mass fraction ratio of the surfactant and the halogenated hydrocarbon polymer is 1:9-99. Compared with the disclosed dry method, the adhesion of the binder is significantly improved, and the amount of the binder used in preparation of a polymer-sulfide flexible solid-state electrolyte (0.05%-3%) is reduced. The obtained sulfide composite solid-state electrolyte has excellent ductility, flexibility and relatively high ion conductivity (>=10 ‑3 S / cm), which is beneficial to large-scale production of high-load and high-capacity all-solid-state lithium batteries.

This application relates to the semiconductor field, providing a coupling interface, a laser chip-based optoelectronic co-packaging system, and a method for fabricating the same. The coupling interface fabrication method includes providing a photosensitive resin composition doped with a metal precursor; coating the photosensitive resin composition doped with the metal precursor onto the surface of a laser chip; forming the coupling interface in a single, integrated process using a femtosecond laser; obtaining a polymer-metal precursor composite structure and processing it such that the reflective surface area of ​​the coupling interface is selectively converted into a continuous metal reflective film, while the emitting end face area of ​​the coupling interface retains an unmetallized or weakly metallized polymer surface; and depositing an antireflection film on the emitting end face. The coupling interface provided by this application enables in-situ, one-time integration of high-precision optical structures and high-reflectivity mirrors, with a simple and reliable process, and direct bonding with the laser chip, resulting in high coupling efficiency and good integration.

An adhesive material includes an adhesive film, where the adhesive film includes a bonding layer and a first functional layer. The first functional layer includes a styrene-isoprene-styrene rubber and an additive, where the additive includes a wax or a polymer surfactant. With the first functional layer having the styrene-isoprene-styrene rubber and the additive provided, the adhesive material is capable of adjusting bonding strengths on both surfaces of the adhesive film through heat treatment and / or pressure treatment, and avoiding permeation and / or shifting between layers in the adhesive film, thereby improving the safety performance of the electrochemical apparatus.

A surface treatment agent comprising a fluoropolyether group-containing polymer represented by formula (1) and / or a partial (hydrolysis) condensate thereof can form a cured coating film having excellent water and oil repellency, steel wool wear resistance, and rubber wear resistance. (Rf is a monovalent or divalent fluoropolyether group, B is a single bond or a divalent organic group not containing F, E is a monovalent group having an oxyalkylene group, T is a single bond or a divalent organic group, U is a single bond, C, Si, N, or a 3-4-valent organic group, V is a single bond or a divalent organic group, Z is a single bond or a 3-8-valent organic group, Y is a divalent hydrocarbon group optionally having O, S, Si, or a siloxane bond, R is an alkyl group or a phenyl group, and X is a hydrogen atom or a hydrogen atom. X represents a hydroxyl group or a hydrolyzable group, n is 1-3, m is 1-7, beta is 1-3, and alpha is 1 or 2)

The present application discloses a fracture-hydrolyzed polymer surfactant for fracturing, its preparation method and application, and belongs to the field of oil reservoir production engineering. The polymer surfactant has a structure shown in Formula I: wherein R is selected from one of the following: R1 is selected from a C1-C3 hydrocarbon group or R2 is selected from a C1-C3 hydrocarbon group or R3 is selected from a C 12 ‑C 18 The hydrocarbon group or R4 is selected from a:b:c=4-6:1:0-2; c is not 0. This polymer surfactant avoids premature adsorption near the wellbore; upon reaching distal fissures, it rapidly dissolves (within tens of minutes) during the soaking period (days or weeks) and penetrates the oil layer to exert its oil displacement effect. After hydrolysis, the residue rate can be less than 0.1%, thus avoiding clogging of oil and water channels in the reservoir.

The invention belongs to the technical field of seawater desalination, and particularly relates to zwitterionic copolymerized hydrogel with high pore connectivity as well as a preparation method and application of the zwitterionic copolymerized hydrogel. The preparation method comprises the following steps: (1) adding a cross-linking agent and a photoinitiator into a mixed aqueous solution containing methacryloyloxyethyl trimethyl ammonium chloride, 2-acrylamido-2-methyl propane-1-sodium sulfonate and Na2SO4, uniformly mixing, and carrying out polymerization reaction under ultraviolet light to form a polymer; and (2) polymerizing the surface of the polymer to form a photo-thermal layer, and performing post-treatment to prepare the zwitterionic copolymerized hydrogel with high pore connectivity. The hydrogel prepared by the method has the characteristic of high pore connectivity, and can still keep excellent evaporation rate in a continuous operation process; meanwhile, the salt shrinkage resistance is excellent. The hydrogel prepared by the invention has wide application in the fields of water treatment, seawater desalination and fresh water recovery.

The invention provides a grafted plastic, a preparation method thereof and a surface metallization material. The grafted plastic comprises a polymer and an active group grafted on the surface of the polymer; and the roughness of the grafted plastic surface is 0.2-6.3 microns. The preparation method of the grafted plastic comprises the following steps: providing a plastic part, placing the plastic part in a reaction cavity, and vacuumizing the reaction cavity; introducing inert gas and oxygen into the reaction cavity; performing oxygen plasma treatment on the plastic part, introducing an active monomer, and initiating a grafting reaction of the active monomer on the surface of the plastic part to obtain grafted plastic; wherein the active monomer has a polar group. The plastic part is subjected to oxygen plasma treatment, the surface of the plastic part can be activated through high-energy oxygen plasma, the roughness of the surface of the plastic part is improved, when inert gas carries active monomers to make contact with the surface of the plastic part, free radical chain reaction can be triggered, and the active monomers are promoted to be grafted to the surface of the plastic part through chemical bonding; the efficient grafting of the plastic part is realized.

The present invention provides a thermal insulation composition that is less prone to cracking during drying. Furthermore, it provides a thermal insulation material with fewer cracks and excellent thermal insulation properties using this thermal insulation composition. [Solution] The thermal insulation composition comprises silica aerogel, a polymer having the function of dispersing the silica aerogel, inorganic particles having hydroxyl groups on their surface, and a liquid. When the stringability of the measurement liquid obtained by removing the silica aerogel from the thermal insulation composition is measured, the following condition (I) is satisfied: (I) The string length at a pulling speed of 4 mm / s is 40 mm or less. The thermal insulation material has a cured product of the thermal insulation composition.