100 results about "Polymer coating" patented technology

The application discloses a heat exchange tube for a vanadium liquid flow battery and a preparation method and application thereof, and belongs to the technical field of liquid flow battery heat exchange. The base material of the heat exchange tube for the vanadium liquid flow battery is any one of an industrial pure titanium tube, a titanium alloy tube or a nickel-based alloy tube; the outer surface of the heat exchange tube is covered with a protective layer, and the protective layer is a polymer coating or a metal coating; wherein the outer surface of the polymer coating has a micro-crease structure. The heat exchange tube for the vanadium liquid flow battery has excellent corrosion resistance and thermal cycle stability, avoids the problem that metal ions in the base material are easily dissolved out, leading to ion pollution of an electrolyte, and thus the safety and stability of the vanadium liquid flow battery are effectively improved.

This invention discloses a superhydrophobic radiation-cooling polymer coating, its preparation method, and its application. The coating is white and possesses a bicontinuous micro / nano porous structure. It is prepared by a ternary copolymerization reaction of polyurethane acrylate oligomers, acrylate reactive diluents, and vinyl siloxane porogens. The method involves initiating free radical polymerization of monomers in the porogen under ultraviolet light, inducing rapid phase separation, and naturally evaporating the porogen to obtain the coating. This coating exhibits superhydrophobicity without post-treatment, virtually no absorption in the solar spectrum, and near-100% emissivity in the mid-infrared window. Furthermore, the optical properties and superhydrophobicity of the coating are minimally affected by long-term ultraviolet irradiation, thermal aging, acids, and alkalis. This coating can be applied over large areas in high-performance radiation-cooling applications.

In the claimed method, a metal foil forming a first electrical current conductor is provided with openings, which are distributed uniformly on a surface of the metal foil and are arranged with spacings. The metal foil is subsequently brought into contact with a solid electrolyte, and the metal foil perforated in this way is then provided with a polymer coating, with which the free cross-sectional areas of the openings are filled. A thin, dense solid electrolyte layer is subsequently formed, and a layer forming the cathode is then formed on the opposite surface of the solid electrolyte in relation to the first current conductor, or a cathode is integrally bonded to said surface. The cathode is placed in electrically conductive contact with a further metal foil, which forms a second electrical conductor, on the oppositely arranged surface and is ionically conductively infiltrated with a liquid electrolyte, wherein an alkali metal anode is formed on the solid electrolyte in the region of the openings in the metal foil during charging of said electrochemical cells.

An anode active material for a secondary battery according to an embodiment of the present invention includes a core particle, a polymer coating formed on a surface of the core particle, and conductive particles formed on the polymer coating. The conductive particles have an average particle diameter greater than a thickness of the polymer coating. The anode active material and a secondary battery having improved stability and reduced resistance are provided using the polymer coating and the conductive particles.

This invention relates to a vehicle glass (3) having a light-guiding glass plate (8) with a printed material (11) and having a light-coupled input and a light-coupled output. Light from a light-emitting device (4) is coupled into the glass plate (8) through an edge region (5) of the glass plate (8), and the coupled light is coupled out from the glass plate (8) by means of the printed material (11) of the glass plate (8), wherein the printed material (11) is formed as a light-scattering structure composed of individual ink droplets (13), and the ink droplets (13) are formed by ink printed on the glass plate (8), and wherein a polymer coating layer (10) covers the cured ink droplets (13). According to the invention, the refractive index n of the glass plate (8) is set to... G The refractive index n of the printed material (11) P and the refractive index n of the capping layer (10) D Satisfying relation n G >n D And n P >n D Especially n P ≥n G >n D .

This invention discloses a polymer coating material and its preparation method, as well as its application in artificial graphite anode materials. The polymer is synthesized from monomers, comonomers, and reaction auxiliaries under the action of an initiator. By controlling the amount of reaction auxiliaries added, the molecular weight of the polymer is controllable, and the side functional groups are adjustable. This polymer can uniformly coat the surface of artificial graphite, forming an artificial solid-state electrolyte interface, optimizing the lithium-ion transport path, and constructing a stable protective layer for the artificial graphite anode material. It can effectively improve the initial coulombic efficiency of the artificial graphite anode material, achieving an initial coulombic efficiency ≥91.8%.

This utility model discloses a drying device for an inline laminating machine, relating to the field of laminating machine technology. It includes a laminating machine with a drying structure mounted on its top and a water-distributing structure mounted on its bottom. The laminating machine's inner cavity contains drying material. The water-distributing structure includes a water-distributing tank, with a first positioning roller rotatably connected to the inner side of the top of the tank, and a second positioning roller rotatably connected to the inner side of the top of the tank. This water-distributing structure achieves efficient pre-treatment of the moisture in the drying material. A drive motor rotates the extrusion rollers, causing the absorbent cotton on the outer wall to move synchronously with the drying material. The absorbent cotton and its surface polymer coating retain their absorbency while reducing friction, effectively absorbing moisture from the material surface. Simultaneously, the adhesive roller adheres to the polymer coating, removing lint and dust, ensuring the absorbent cotton is clean and reusable, improving moisture absorption efficiency and sustainability, and laying a good foundation for subsequent drying processes.

This invention relates to a core-shell structured hydrophobic and flame-retardant dual-functional polymer coating material and its preparation method, belonging to the technical field of flame-retardant and hydrophobic functional polymer materials. The technical problem solved by this invention is to provide a core-shell polymer coating material with both hydrophobic and flame-retardant functions. This material has a core-shell structure, with the core polymer monomers including phosphorus-containing flame-retardant monomers and the shell polymer monomers including fluorine-containing monomers, and the core and shell are connected by covalent bonds. The material contains elements such as phosphorus (P) and phosphorus (F), and the flame-retardant and hydrophobic functional groups are linked by stable chemical bonds, exhibiting good flame-retardant effect and hydrophobic properties. Its raw materials are readily available, the process is simple, rapid, and easy to scale up. Using water as a dispersant, it has low VOC emissions, offering environmental advantages. It is safe and harmless to the human body and can be used as a coating material for flammable substrates such as polyurethane foam, wood, and fabrics, showing broad application prospects in construction, interior decoration, and electronic appliances.

This invention relates to the field of textile technology and discloses a method for preparing a nano-silver antibacterial and deodorizing ultra-soft sofa fabric. The fabric includes a fiber substrate and a three-dimensional polymer coating in situ cross-linked on its surface. The finishing working solution uses water as a solvent and contains branched polyethyleneimine, nano-silver dispersion, terminal epoxy-modified polydimethylsiloxane, and glacial acetic acid. During solution preparation, glacial acetic acid is used to adjust the pH to 4.5–5.0, causing the polyamine groups to protonate and form a kinetic dormancy state, ensuring stability at room temperature. After padding, a three-stage gradient baking process is performed, where the bound acetic acid is desorbed and vaporized upon heating, restoring the active amine groups to undergo in-situ ring-opening addition cross-linking with the terminal epoxy groups. Polyethyleneimine anchors the nano-silver through multi-toothed chelation, and epitaxial siloxane segments form a comb-like hydrophobic isolation layer. This invention inhibits metal-catalyzed yellowing of the fabric, significantly improves the wash fastness of the antibacterial components, and imparts an excellent soft touch to the fabric through molecular-level lubrication.

The utility model discloses a kind of toy surface safety non-toxic macromolecular coating spraying structure, belong to coating spraying technical field, and its technical scheme main points include atomization spraying nozzle, the left side of the atomization spraying nozzle is movably connected with quick dismounting mechanism, the inside of the quick dismounting mechanism is movably connected with the turbulence efficiency mechanism, the bottom of the quick dismounting mechanism is movably connected with grip handle, the left side of the quick dismounting mechanism is movably connected with liquid storage barrel, can be through pressing limit pin, cooperate telescopic prop, compression spring and the collaborative operation of limit clamping plate, the limit of top and bottom transition bin and opening can be quickly and easily realized, greatly improve work efficiency, in cleaning maintenance aspect, the design of transition bin makes that transition pipe is easily disassembled, it is convenient to take down and carry out overall storage cleaning, from product quality guarantee angle, transition pipe is conveniently replaced, effectively avoid that macromolecular coating water-based spraying liquid and transition pipe inner metal residue reaction occurs.

This invention discloses a copper / hydrogen peroxide synergistic-induced dopamine surface self-polymerization coating and its preparation method, relating to the field of surface and interface modification technology. The specific preparation method is as follows: Buffer solution A is prepared using an organic amine buffer solution; copper salt is added and ultrasonically dispersed to obtain a copper-containing solution B; a substrate pretreated with acid washing is immersed in solution B; a dopamine precursor is added to obtain a mixed solution C; then an aqueous hydrogen peroxide solution is added, and the reaction is carried out under light-protected conditions to form a dopamine polymer coating in situ on the substrate surface. After washing and drying, a modified substrate with a copper / hydrogen peroxide synergistic-induced dopamine coating is obtained. 2+ It exhibits a significant synergistic effect with H2O2 in inducing oxidative polymerization, reflecting the combined effect of coordination site saturation and subsequent layer coverage. This invention achieves higher film-forming efficiency and interfacial stability through short-time impregnation and optimized reaction sequence, making it suitable for rapid modification of glass-like inert substrates.

The application relates to the technical field of electrochemical energy storage, and specifically discloses an electrode assembly, which comprises a first pole piece, a second pole piece and a diaphragm arranged in a stack, and the diaphragm is located between the first pole piece and the second pole piece; the first pole piece and the second pole piece have opposite polarities; the first pole piece comprises a first current collector, a first active material layer, an electrolyte-attracting polymer coating and a porous carbon-based material layer; the first current collector is provided with the first active material layer, the side, away from the first current collector, of the first active material layer is provided with a groove, the groove has an opening facing the diaphragm; and the porous carbon-based material layer is arranged in the groove. The electrolyte-attracting polymer coating is coated on the porous carbon-based material layer and covers the opening. The application also discloses an electrochemical device and an electronic device. The application effectively solves the problems of high internal resistance, low cycle retention rate and unstable storage performance in the prior art.

The application discloses a kind of electrostatic spraying method of quartz boat surface insulating film, belong to the field of quartz boat, comprising the following steps: S1, by electrostatic induction and make the surface of quartz boat pre-charged;S2, using electrostatic spraying gun on quartz boat electrostatic spraying polymer coating, obtain surface insulating film;Wherein, in surface insulating film, the ratio of the total thickness of groove top surface film layer of quartz boat and the total thickness of groove bottom surface film layer is 1~3.The application improves the spraying difference ratio of the top surface and the bottom surface of the groove of quartz boat.

The application relates to a high-weather-resistance multifunctional rail transit polymer coating as well as a preparation method and application thereof, and relates to the technical field of rail transit coatings. The high-weather-resistance multifunctional rail transit polymer coating comprises an A component and a B component; the A component comprises the following substances in a mass fraction: 25-35% of silicone-modified acrylic resin; 5-10% of nano-silicon dioxide loaded polyacrylic resin; 4-8% of functionalized nano-aluminum oxide-nano-cerium oxide composite material; 25-35% of titanium white powder; 0.5-1.0% of a dispersing agent; and 20-30% of a solvent; the B component comprises the following substances in a mass fraction: 70-80% of isocyanate resin; and 20-30% of a solvent. The high-weather-resistance multifunctional rail transit polymer coating has excellent weather resistance, wear resistance, acid and alkali resistance, anti-yellowing property, water and oil resistance, high gloss, stain resistance and other multifunctional properties through the synergistic effect of the components.

The medical stent includes a central stent segment, a proximal stent segment adapted to be positioned above the proximal region of the central stent segment, and a distal stent segment adapted to be positioned above the distal region of the central stent segment. A polymer coating extends over the proximal stent segment, the distal stent segment, and at least a portion of the central stent segment, and the polymer coating is adapted to allow the proximal stent segment to float above the proximal region of the central stent segment and the distal stent segment to float above the distal region of the central stent segment. After implantation, the central stent segment is adapted to move parallel to the proximal and distal stent segments in response to peristaltic forces.

The invention provides a method for detecting one or more analytes, the method comprising: providing a substrate comprising a semiconductor with a porous surface, wherein the porous surface is coated with a fluorocarbon polymeric coating; contacting the porous surface with a fluid or object so that the one or more analytes are retained on the substrate when present in the fluid or on the object; and analysing the substrate by mass spectrometry to detect the one or more analytes if present on the substrate.

The application provides a lithiumophilic copper current collector and a preparation method and application thereof. The lithiumophilic copper current collector comprises a copper current collector and a polymer coating coated on the copper current collector, and raw materials for preparing the polymer coating comprise pentafluoroethyl acrylate monomers and acrylic acid salt monomers. The modified copper current collector has extremely low nucleation overpotential and excellent cycle stability in a lithium deposition process, can effectively inhibit the growth of lithium dendrites, and significantly improves the coulombic efficiency and cycle life of a lithium metal battery.

A method of making a valvular medical device including a cell configured to flex out-of-plane upon application of a lateral or circumferential force applied to the biased cell, the biased cell having an elongate member projecting axially from an apex of the biased cell that flexes out-of-plane concomitantly with out-of-plane flexion of the biased cell. A monolithic hypotube is formed into a lattice structure having a plurality of biased cells and elongate members and is configured into a cardiac valve having a main body portion, a valve leaflet portion, and a plurality of elongate biasing arm members. A polymer coating or covering is disposed on the valve leaflet portion and the elongate biasing arm members and subtends space between adjacent pairs of elongate biasing arm members to form valve leaflet cusps that are biased toward a central axis of the cardiac valve by the elongate biasing arm members.

This invention discloses a method for preparing high-charge, fast-response carbon black electrophoretic particles, belonging to the field of electrophoretic display technology. The invention employs a three-step surface modification method for carbon black: first, the carbon black is oxidized to introduce active functional groups onto its surface; then, a silane coupling agent is used for graft modification to introduce polymerizable double bonds; finally, under the synergistic regulation of a dual charge control agent, a polymer coating layer is formed on the carbon black surface through a stepwise polymerization process. The carbon black electrophoretic particles prepared by this invention exhibit regular morphology and high Zeta potential, demonstrating fast response speed and excellent dispersion stability in an electric field. This effectively solves the technical problems of easy agglomeration, slow response, and poor stability of existing carbon black electrophoretic particles, significantly improving the overall performance of electrophoretic display devices.

The application discloses a metal lithium negative electrode and a preparation method for improving lithium metal deposition behavior, and the lithium metal deposition behavior can be improved by adding lithiumophilic sites in the through hole of an organic polymer film and under the film; different polymers are mixed and coated on the surface of the metal lithium negative electrode, one of the polymers is removed, the polymer coating on the surface of the metal lithium is in a through hole porous state, and then a lithiumophilic substance is coated and embedded into the pore channel of the polymer coating, so that the purpose of adding the lithiumophilic sites under the film is achieved. The application has the beneficial effects that: through the preparation method, lithium metal can be induced to uniformly nucleate and grow, the lithium metal deposition direction can be changed, the ionic conductivity of the composite protective film can be improved, the generation of lithium dendrites can be inhibited, and the side reaction caused by the direct contact between the negative electrode and the electrolyte can be reduced.

The embodiment of the present application relates to a slow-release polymer coating and a preparation method and application thereof, wherein the preparation method comprises: mixing polymer monomers, polymer monomer initiators, solvents, cross-linking agents and electrolyte initiators in proportion to obtain a coating precursor slurry; wherein the polymer monomers comprise fluorinated acrylate compounds; the polymer monomer initiators comprise free radical initiators; the solvents comprise ether compounds; the cross-linking agents comprise one or more of polyethylene glycol derivatives and acrylate compounds; and the electrolyte initiators comprise lithium salts that can produce protonic acids with trace amounts of water and are resistant to high temperatures; the coating precursor slurry is coated onto the surface of the object to be covered, and a heating polymerization process is performed to obtain a slow-release polymer coating. The slow-release polymer coating can protect the lithium metal negative electrode and enhance the high-temperature safety performance of the lithium metal battery.

The present invention provides a body coated by a multi-layer polymer that can be germinated under an increased air temperature condition after dormancy, even when sown during autumn which is an agricultural off-season. Provided is a body coated by a multi-layer polymer coating which is a coated body obtained by coating at least two layers of polymer onto a coating target body, said body coated by a multi-layer polymer coating being characterized in that an outer coating layer including at least one inner coating layer on an inner side is formed from a polymer exhibiting lower limit critical temperature (LCST) characteristics after being subjected to a phase transition at a temperature lower than the softening temperature of the polymer forming the inner coating layer.

The present disclosure relates generally to chemical sensors and polymer coatings for chemical sensors, and more particularly to a sensing system including a sensor having a polymeric 3D printed coating disposed on a surface thereof. A sensing system includes a sensor including a resonator structure. The sensing system includes a polymeric 3D printed coating disposed on a surface of at least a portion of the sensor. The polymeric 3D printed coating includes a three-dimensional scaffold structure.

The present application relates to a kind of high durability multilayer biomimetic radiation refrigeration fabric and its preparation method and application, the radiation refrigeration fabric from bottom to top includes structural support layer, adhesive layer, functional scattering core layer and external protective layer in turn;The structural support layer is flexible textile base material;The adhesive layer is formed by high molecular adhesive, for connecting structural support layer and functional scattering core layer;The functional scattering core layer is porous polymer nanofiber membrane;The external protective layer is the polymer coating containing high refractive index particle;The stable interface with cross-scale physical interlocking structure is formed between the structural support layer, adhesive layer and functional scattering core layer by hot pressing.The fabric in the present application can meet the long-term use requirements under complex application scenarios while maintaining high-efficiency radiation refrigeration performance, with excellent mechanical strength, interface stability and environmental durability.

The application discloses a preparation method of a reinforced silicon-based negative electrode, which comprises the following steps: porous nano-silicon core preparation, MAH-g-PEO preparation, BCNT modification and dispersion, polymer coating, SEI reinforced film deposition, and negative electrode preparation. The PEO is modified and grafted, the silicon particles are coated, the ester bond is generated by combining the hydroxyl on the silicon surface, the interface bonding energy of the coating layer and the silicon surface is greatly improved, the coating layer is not easy to fall off while inhibiting the expansion of the silicon negative electrode, the SEI reinforced film containing LiF is formed by in-situ deposition, the strong stability of LiF greatly increases the strength of the SEI film, the damage rate of the SEI film is greatly reduced, and the CNT can form hydrogen bonds with the polymer after being modified by KH560, and the CNT experiences a more firm and reliable conductive network, so that the conductive performance is further improved.

The application discloses a kind of mixing station dust removal system filter core renewable cleaning and performance recovery, evaluation method and system;The renewable cleaning and performance recovery method includes: pretreatment step, remove the surface of filter core large particle dust;Composite cleaning step, in the composite cleaning fluid including surfactant and biological enzyme preparation, ultrasonic wave is applied, and fine inorganic dust is stripped and degraded organic binder;Rinsing and drying step;And performance recovery processing step, fluorine polymer coating is applied and is cured to form hydrophobic and oleophobic function layer;The evaluation method includes filtration efficiency, pressure drop, dust capacity and multiple regeneration durability test;The application realizes the efficient environmental protection regeneration of filter core, significantly prolongs the service life of filter core, reduces operating cost and solid waste discharge.

The present application relates to the technical field of electrode preparation, and particularly relates to a dry electrode film, a preparation method thereof, an electrode sheet and a battery. The dry electrode film comprises: polymer@Si / C powder 70-90%, graphite 0-20%, conductive agent 3-12%, and polytetrafluoroethylene 4-8%, wherein the polymer@Si / C powder is a composite formed by polymer-coated silicon-carbon material. The silicon-carbon active core provides high specific capacity, the polymer intermediate functional layer realizes molecular-level interface anchoring, buffers local stress, and promotes the formation of a solid-state electrolyte interface film, the PTFE outer layer provides macro-mechanical support, maintains the integrity of the electrode, and is well combined with the current collector. By constructing a polymer coating layer on the surface of the silicon-carbon active particles, the present application forms strong hydrogen bonds / coordination effects, effectively inhibits particle pulverization during charging and discharging, promotes the continuous growth of the solid-state electrolyte interface film, improves the electrochemical performance, and realizes the unification of high capacity and long cycle.

The application provides a modified Zein Pickering emulsion, a preparation method thereof and application of the Pickering emulsion in fresh-keeping of sandgrass at room temperature, and belongs to the technical field of food fresh-keeping. The preparation method comprises the following steps: Zein is added into an alkaline solution for amino treatment, and after high-temperature reaction, the solution is cooled and the pH value of the solution is adjusted. After removing impurities, the solid sample is obtained through freeze-drying; the obtained sample is added into water together with another natural extract for reaction, the solution is transferred after a period of time, and impurities are removed, and then the modified Zein polymer coating is obtained through freeze-drying; the modified Zein material is added into water together with cinnamyl aldehyde, and after emulsification by using an ultrasonic homogenizer, the target Pickering emulsion is obtained. The Pickering emulsion obtained by the application has the advantages of sustained drug release, high external tolerance, anti-freeze-thaw cycle, excellent sterilization performance and outstanding antioxidant performance, and can be applied to fresh-keeping of sandgrass at room temperature.

This invention relates to negative electrode active materials, their preparation methods, and applications. The negative electrode active material comprises a silicon-based material and a polymer coating layer covering its surface. The polymer coating layer comprises a water-soluble polymer and a surfactant, and the water contact angle of the polymer coating layer is 65°–85°. The surfactant has the chemical formula A1–R–A2, where A1 and A2 are each independently selected from polar groups containing at least one element selected from N, O, P, and S, and R is selected from substituted or unsubstituted C8–C6 groups. 50 Aliphatic hydrocarbon segments, substituted or unsubstituted C8-C 50 Aliphatic hydrocarbon segments containing heteroatoms, substituted or unsubstituted C8-C 50 Alicyclic hydrocarbon segments, substituted or unsubstituted C8-C 50 Alicyclic hydrocarbon segments containing heteroatoms, substituted or unsubstituted C8-C 50 Aromatic hydrocarbon segments, substituted or unsubstituted C8-C 50 Aromatic hydrocarbon segments containing heteroatoms. This negative electrode active material has a bilayer protective structure of an inner hydrophobic layer and an outer hydrophilic layer, exhibiting excellent dispersibility and low gas production.

The utility model relates to battery technology field especially relates to a kind of separator for lithium ion battery, including the base film, adhesive layer, ceramic coating layer and polymer coating layer that are sequentially stacked and set;Wherein the adhesive layer is porous adhesive layer.The separator for lithium ion battery provided by the utility model introduces the adhesive layer with porous structure between ceramic coating layer and base film, improves the adhesion and heat resistance between ceramic coating layer and base film, avoids ceramic particles to penetrate into base film aperture to cause hole blocking, reduces the air permeability increment of separator whole.