109 results about "Polymeric surface" patented technology

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.

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.

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 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.

The invention discloses a negative electrode binder, a negative plate and a battery, the negative electrode binder comprises a core copolymer and a shell polymer connected outside the core copolymer, the core copolymer comprises a first aromatic vinyl structural unit and an acrylate structural unit; the shell polymer comprises a vinyl epoxy structural unit. According to the negative electrode binder provided by the invention, the core polymer comprises the first aromatic vinyl structural unit and the acrylate structural unit so as to balance rigidity and toughness; a vinyl epoxy structural unit is introduced into the shell polymer to form a crosslinkable functional group layer on the surface of the core polymer, so that a stable three-dimensional network structure is constructed. Through efficient cross-linking of epoxy groups in the shell polymer layer, the binder obtains extremely low electrolyte mass swelling rate and dissolution rate, the anchoring capability of the binder to a negative electrode active material and the long-term stability of an electrode structure are fundamentally improved, the cycle life of a battery is finally remarkably prolonged, and the use safety of the battery is guaranteed.

The application discloses an anti-fog polymer and a preparation method and application thereof. The preparation method comprises the following steps: (1) depositing an inorganic thin film on a polymer; and (2) laser scanning a polymer surface after the inorganic thin film deposition, so that a micro-nano structure is formed on the polymer surface, and an anti-fog polymer is obtained. The stable micro-nano structure is formed by using the above process, the polymer has the anti-fog and self-cleaning capabilities, the process is adjusted to be suitable for different polymer materials for anti-fog and anti-fouling, such as resin spectacle lenses, greenhouse plastic films, polyimide (PI), polyetherimide (PEI), polyethylene terephthalate (PET) flexible transparent plastic and the like. The preparation method has the advantages of low requirement on equipment, low cost and large-scale production.

The invention discloses a composite oil displacement system and a preparation method thereof, and belongs to the technical field of oilfield development. The composite oil displacement system provided by the invention mainly comprises polyacrylamide and a viscoelastic body, the viscoelastic body is carried by utilizing the tackifying and suspending capabilities of polyacrylamide, the viscosity of the system can be increased by 1-2 times on the basis of single polyacrylamide, the viscoelasticity of the system is greatly increased, and compared with a polymer oil displacement system, the composite oil displacement system has the advantages that the viscosity of the system is increased by 1-2 times; and the oil field recovery ratio can be effectively improved. Compared with a polymer / surfactant oil displacement system, the cost of the system can be reduced by about 55%. Therefore, the composite oil displacement system provided by the invention not only can improve the recovery efficiency of an oil field, but also has relatively low cost.

An article (10) comprising a polymeric surface bearing a machine-readable code (17) formed by laser marking, the code having adjacent lighter (11) and darker areas (12). A AL* between the lighter and darker regions may be equal to or greater than 20; and equal to or less than 80. The code may comprise a two-dimensional barcode exhibiting a grade equal to or greater than 1, based on verification according to ISO / IEC 15415 and / or a one-dimensional barcode exhibiting an overall symbol grade of equal to or greater than 1.5, based on verification according to ISO / IEC 15416.

The present invention provides an encapsulated composition comprising at least one core-shell microcapsule, wherein the at least one core-shell microcapsule comprises a core comprising at least one benefit agent and a shell surrounding the core, wherein the shell comprises:a) a polymeric stabilizer that is formed by combination of a bio-based polymeric surfactant with at least one aminosilane;b) a bio-based and biodegradable hydrocollolid; andc) a linker derived from a bio-based and biodegradable epoxy resin.The invention also provides a method for preparing the encapsulated composition, a consumer product comprising the encapsulated composition and the use of the encapsulated composition to improve the perception or enhance the performance of the benefit agent in a consumer product.

Provided is a polishing composition that exhibits good wettability of a surface after polishing and can effectively suppress defects such as haze lines. The polishing composition contains abrasive grains, a basic compound, a cellulose derivative, a modified polyvinyl alcohol-based polymer, a surfactant, and water. The weight-based content ratio of the cellulose derivative to the abrasive grains is greater than 0.06.

A cleaning device for clamps in a lithography apparatus includes a substrate having a front surface and a back surface opposite to the front surface, and a conductive layer provided on the front surface of the substrate. The conductive layer is configured to contact the clamp to dissipate the charge on the clamp and remove particles on the clamp via an electrostatic field generated between the conductive layer and the clamp. The conductive layer may include a conductive polymer. The conductive polymer may have a conductivity of at least about 1 S / cm. The conductivity of the conductive polymer is variable and can be adjusted to a desired value. The conductive polymer may include polyaniline, poly(p-phenylene), polythiophene, polypyrrole, poly(p-phenylene vinylene), trans-polyacetylene, combinations thereof, or derivatives thereof (e.g., polymer blends, copolymers, graft polymers, surface modifiers, surface treatment agents, additives, and / or fillers).

The present invention relates to a top coating composition comprising polymer (A), surfactant (B) and solvent (S). The polymer (A) comprises a side chain comprising a fused aromatic ring. The surfactant (B) comprises an aliphatic hydrocarbon portion (B1) and an alkylene oxide portion (B2). the solvent (S) comprises water (S1). The composition can be used for a top coat composition, which can exhibit at least one of properties of advanced material or high performance material. The composition can be used in the nanotechnology process to make semiconductor device / display device application, for example liquid crystal, quantum dot or OLED display fabricated on a substrate, and controlled by semiconductors.

Improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, wherein an organothiophosphorous heavy metal precipitating agent and an ionic polymeric surfactant, particularly a cationic polyacrylamide copolymer surfactant, are both added to a phosphoric acid containing composition, particularly under vigorous mixing conditions, such as between 500 and 700 rpm. The ionic polymeric surfactant promotes the precipitation of the heavy metals. More in particular, the phosphoric acid containing composition is obtained by the acid digestion of phosphate rock, preferably by nitric acid, sulfuric acid, or a combination thereof.

An authentication element may include molecules where the molecules are arranged to encode at least a portion of an authentication code. The molecules may be polymer chains. The molecules may be polymer chains in a polymer ink. The molecules may be x-ray sensitive. A shape in which the molecules are arranged, for example on a surface to which they are attached, may encode the at least a portion of the authentication code. The molecules may be arranged as a two-dimensional pattern, such as a barcode or QR-code. A method of applying an authentication element includes disposing molecules onto a polymer surface and irradiating at least a portion of the molecules thereby attaching the at least a portion of the molecules to the surface such that the at least a portion of the molecules are arranged in an arrangement corresponding to at least a portion of an authentication code.