383 results about "Polymer coatings" patented technology

The invention discloses a large-size green packaging carton and a preparation process thereof, and relates to the field of packaging box preparation. The environment-friendly composite material comprises the following raw materials in parts by weight: 50-80 parts of plant fiber slurry, 10-25 parts of a modified starch-based adhesive, 5-15 parts of a nanoscale inorganic reinforcing filler, 1-5 parts of a degradable water repellent agent, 0.5-3 parts of a cross-linking agent and 2-8 parts of starch and plant fiber composite buffer microspheres. According to the preparation method, full-environment-friendly raw materials such as plant fiber slurry and a modified starch-based adhesive are selected and matched with starch and plant fiber composite buffer microspheres, and optimized processes such as segmented temperature control pressurization molding, adhesive gelatinization treatment, stirring speed reduction and microsphere structure protection are combined; and through coating of the degradable polymer coating and micron-sized hydrophobic texture imprinting, synergistic improvement of high compressive strength, excellent buffering performance, excellent hydrophobic and damp-proof effects and high degradation rate of the carton is achieved.

The invention discloses a bacillus coagulans feed additive and a preparation method thereof, and relates to the technical field of feed additives, the bacillus coagulans feed additive comprises bacillus coagulans spores, the content of the spores is 1.0 * 10 < 8 >-1.0 * 10 < 11 > CFU / g; the protective agent system comprises the following components: maltodextrin or lactose, vegetable protein, polyhydric alcohol and an antioxidant; the invention discloses a microcapsule coating structure. A microcapsule is a two-layer composite coating of an inner layer alginate matrix and an outer layer polycation or polymer coating. According to the invention, bacillus coagulans spores which can still keep high survival rate under short-time high-temperature and low-pH conditions are obtained through screening and fermentation strategies of strains with high sporulation and heat and acid tolerance, the problem that common strains are easy to inactivate in granulation, extrusion and gastric acid environments is solved, the problem of product failure caused by insufficient tolerance of the strains is reduced, and the product quality is improved. And the original biological activity basis is improved, so that the protection effect of the subsequent formula and the coating can be played at a higher starting point, and the zoology effect of the final preparation is improved.

A razor blade with a sharpened cutting edge with an outer bonding surface. A hydrocarbon polymer organic coating material deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The hydrocarbon polymer organic coating is composed of one or more layers. Additionally, the method of coating the cutting edge is described.

The invention relates to the technical field of lithium battery diaphragms, in particular to a core-shell structure large-particle-size PMMA binder and a preparation method thereof. According to the binder, a core-shell synergistic system is constructed through a step-by-step swelling polymerization process, and the binder has the characteristics of large particle size and uniform distribution. The core innovation lies in that room-temperature cold-pressing bonding is achieved in a breakthrough mode, and traditional materials needing hot pressing are thoroughly replaced; the unique particle size design effectively maintains the smoothness of diaphragm pores, and significantly reduces air permeability degradation; single-time coating forming is realized by blending with ceramic components, so that the production process is greatly simplified. The binder systematically solves the technical defects of wide particle size distribution, insufficient binding power and lack of cold pressing capability of the existing polymer coating, and provides an innovative solution for the high-performance lithium battery diaphragm.

The embodiment of the invention provides a dotted array coating battery diaphragm which comprises a diaphragm base material and a polymer coating coated on the surface of at least one side of the diaphragm base material, and the polymer coating comprises a plurality of crater shapes which are provided with peripheral bulges and truncated cone-shaped bulges with concave centers, and the dotted coatings are arranged on the surface of the diaphragm base material to form a dotted array. According to the dot-shaped array coating battery diaphragm, the crater structure of the dot-shaped coating is creatively designed, accumulation of polymers at coating points is effectively reduced, the influence on the performance of the battery diaphragm after hot pressing is correspondingly small, the battery diaphragm can meet the requirement for the bonding strength with a battery pole piece, and meanwhile the battery diaphragm can be used for manufacturing the battery pole piece. The composite material has good ion permeability, wettability and air permeability, and better performance balance is achieved. The embodiment of the invention also provides a preparation method of the dotted array coating battery diaphragm and a secondary battery containing the dotted array coating battery diaphragm.

The invention belongs to the technical field of nano composite coatings, and particularly provides an anti-dust-sticking carbon nano polymer coating as well as a preparation method and application thereof. The invention relates to an anti-dust-sticking carbon nano polymer coating which comprises the following raw materials: epoxy resin, polytetrafluoroethylene, a reinforcing medium, a filler, an auxiliary agent and a curing agent, the reinforcing medium is prepared by mixing polyurethane, modified cyclodextrin and graphene, so that stacking among graphene is reduced, and the graphene is effectively dispersed. The ash sticking prevention carbon nano polymer coating prepared by the invention has the advantages of abrasion resistance and corrosion resistance.

The invention discloses a preparation method and antibacterial application of a naphthothiadiazolyl photosensitizer, and belongs to the technical field of biomedical antibacterial materials. The naphthothiadiazole-based photosensitizer provided by the invention overcomes the problem that the existing commercial photosensitizer gathers and quenches the active oxygen efficiency, and meanwhile, the antibacterial photosensitive polymer prepared based on the novel naphthothiadiazole-based photosensitizer has the unique advantages that the structure is stable, photosensitizer micromolecules are not easy to leak and the antibacterial effect is long-acting; the construction of the antibacterial polymer coating on the surface of the medical instrument in the future has important clinical application potential. The naphthothiadiazolyl photosensitizer provided by the invention has good photodynamic killing performance on drug-resistant bacteria MRSA (Methicillin Resistant Staphylococcus Aureus).

The invention relates to the field of energy storage batteries, in particular to a surface modification method of a carbon-based negative electrode material for a lithium ion battery and the carbon-based negative electrode material.The surface modification method comprises the following steps that S1, the carbon-based material, soluble saccharides, a lithium source and a solvent are mixed; s2, carrying out ball milling treatment on the slurry to obtain a precursor mixture; s3, calcining the precursor mixture to obtain a primary modified carbon material; s4, treating the primary modified carbon material in ozone to obtain an oxidation modified carbon material; and S5, dispersing the oxidation modified carbon material in a solution containing a conductive monomer and an oxidizing agent for chemical polymerization reaction, and depositing on the surface of the carbon material to form a polymer coating layer, thereby obtaining the surface modified carbon-based negative electrode material. By constructing a pre-lithiated carbon coated inner core and an ozone activation interface and preparing a modification layer of a conductive polymer, the core problems that a traditional carbon negative electrode is low in first efficiency, short in cycle life and poor in rate capability and is difficult to consider at the same time are solved.

The invention belongs to the technical field of pipeline coatings, and particularly provides a petroleum pipeline anti-corrosion carbon nano polymer coating as well as a preparation method and application of the petroleum pipeline anti-corrosion carbon nano polymer coating. The coating is prepared by mixing the following raw materials in parts by mass: 80-90 parts of base resin, 8-12 parts of microcapsules, 1-5 parts of carbon nanotubes, 0.5-2 parts of talcum powder, 0.5-1 part of a preservative, 0.1-0.5 part of a defoaming agent and 0.2-0.3 part of a flatting agent, the prepared microcapsule is used as a coating raw material component, coating cracks can be repaired, and the long-acting protection effect on metal of the inner layer of a pipeline is achieved.

A razor blade with a sharpened cutting edge with an outer bonding surface. A hydrocarbon polymer organic coating material deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The hydrocarbon polymer organic coating is composed of one or more layers. Additionally, the method of coating the cutting edge is described.

The invention relates to a fluoropolymer coating composition that can be used, for example, in coating electrodes and / or separators in electrochemical devices. The fluoropolymer coating composition preferably contains multiple fluoropolymer phases. The coated electrodes and / or separators have both excellent wet adhesion, excellent dry adhesion, and low leachables. Each of the fluoropolymer phases contains polymers having at least 10 weight percent, of a common fluoromonomer, making the polymer phases compatible with each other, and allowing for the phases to be distributed fairly homogeneously on a macroscopic level throughout the composition and dried coating formed from the composition.

A catheter that is at least partially defined from a hypotube includes a polymer coating of varied flexibility on an outer surface of the hypotube. The polymer coating may include a plurality of adjacent sections that are continuous with each other, but have different flexibilities from each other. The sections may have different hardnesses, or durometers that impart them with their different flexibilities. Methods for manufacturing such catheters are also disclosed.

The invention belongs to the technical field of nano composite materials, and particularly provides a corrosion-resistant flexible carbon nano polymer coating and a preparation method thereof, and the corrosion-resistant flexible carbon nano polymer coating comprises phenolic resin, bisphenol F epoxy resin, GO-NH2, self-repairing polyimide, a BYK-011 defoaming agent, talcum powder, polytetrafluoroethylene, a BYK333 flatting agent, silicon carbide, a B215 composite antioxidant, a UV531 ultraviolet light absorber and cardanol. The corrosion-resistant flexible carbon nano polymer coating prepared by the invention has excellent mechanical strength and wear resistance, good flexibility, efficient self-repairing capability and lasting corrosion resistance, the service life of the coating can be effectively prolonged, and the protection requirement in a severe environment is met.

The application provides a plant oil modified fluorine-free anti-fingerprint transparent coating material and a preparation method and application thereof, and belongs to the technical field of anti-fingerprint coating materials.The plant oil modified fluorine-free anti-fingerprint transparent coating material is prepared from an organic silicon modified polyurethane acrylate prepolymer, plant oil, a photoinitiator, an organic solvent and hydrophobic nanoparticles, and is formed through ultraviolet light curing.The prepared organic silicon modified polymer coating has low surface energy and environmental protection, can be rapidly photocured to reach a surface dry state under ultraviolet light irradiation, improves production efficiency, and has transparency, excellent hydrophobic effect and anti-fingerprint performance.The results of the examples show that the water contact angle is more than 100 degrees, the light transmittance is more than 80 percent, and the anti-fingerprint performance of removing fingerprint marks by wiping with a paper towel for 3 times or less.

The invention provides a composite solid electrolyte membrane, a preparation method thereof and a secondary battery. The composite solid-state electrolyte membrane comprises a modified pyrochlore type oxide solid-state electrolyte, a polymer matrix and a lithium salt, and the modified pyrochlore type oxide solid-state electrolyte comprises a pyrochlore type oxide solid-state electrolyte and a polymer coating layer coating the surface of the pyrochlore type oxide solid-state electrolyte. The polymer coating layer and the pyrochlore type oxide solid electrolyte are connected through a covalent bond, the polymer coating layer is formed by in-situ polymerization of a polymer monomer on the surface of the pyrochlore type oxide solid electrolyte, and the polymer monomer is selected from a monomer with a trifluoroacetamide functional group and / or a monomer with a carbamate functional group. The composite solid electrolyte membrane provided by the invention has excellent lithium ion conductivity.

The invention belongs to the field of polymer coatings, and provides an aliphatic polyurethane finish paint with high adhesion resistance and a preparation method thereof. According to the invention, a polyurethane phase and a polyacrylate network are adopted to construct a semi-interpenetrating network structure, cyclic carbonate and hydrolyzable silane end groups are introduced into double-end functionalized polysiloxane, and a silicon-oxygen network surface layer is self-assembled after coating and curing; the high crosslinking density with the gel fraction being greater than or equal to 85%, the wear-resistant and anti-slip performance with the dry friction coefficient being greater than or equal to 0.50 and the abrasion mass loss being less than or equal to 0.030 g / 500 r, the ultra-low surface energy anti-dirt performance with the water contact angle being greater than or equal to 105 degrees and the surface free energy being less than or equal to 22 mN / m and the environment-friendly characteristic that the volatile organic compound content is less than or equal to 50 g / L are achieved; the three technical contradictions of high gel fraction and ultralow surface energy silica surface layer coupling, high hardness wear resistance and high friction coefficient maintenance, and high solid content and low volatility organic compound processing window and nano gradient silica surface layer construction are solved, and the nano gradient silica coating has wide application value in the field of industrial terraces and metal base material coatings.

The invention relates to the technical field of surface treatment, and discloses a PVD (Physical Vapor Deposition) treatment method for sawteeth. Comprising the following steps: carrying out alkaline electrolytic polishing treatment to obtain a flat surface, carrying out phosphating treatment after pickling neutralization to form a chemical conversion film, depositing a hard functional layer through PVD plating, carrying out surface cleaning and pretreatment to obtain a clean substrate, coating a heat-resistant base coat with a polymer to form a heat-resistant hard bottom layer, coating a wear-resistant surface coat with a polymer to form a wear-resistant protective layer, and curing to form a film to form an integrated structure. Through the synergistic effect of the five-layer composite protection structure, the sawtooth groove protection blind area is eliminated, the coating quality consistency is remarkably improved, the corrosion resistance time exceeds 2000 hours, the high-temperature softening limit is broken through, 100-180 DEG C stable work is achieved, the wear resistance is improved by one order of magnitude, meanwhile, functionality and durability are considered, and the service life is prolonged. And an effective technical solution is provided for long-term reliable application of the sawtooth workpiece under harsh working conditions.

The disclosure relates generally to electrodes with a target-binding molecule conjugated on its surface that is overlaid with a polymer of sufficient thickness to restrict ion mobility so that the electrical double layer is moved closer to the site of target binding to the immobilized target-binding molecule. Generally, thickness of the polymer coating layer is such that a target-binding site of the immobilized target-binding molecule is not in the coating layer, e.g., the target-binding site is exposed. The disclosure also provides sensors comprising the electrode and uses of the electrodes and sensors in target analyte detection, e.g., in label-free detection of targets. WO

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.

The invention discloses a graphite material, a negative plate, a battery and a power utilization device. The graphite material comprises a graphite inner core and a graphite outer core, the polymer coating layer covers at least part of the surface of the graphite core, the polymer coating layer comprises a polymer, and the chemical formula of the polymer meets-[C (R1) (COOR2)-(C (R3) (R4)) a-C (R5) CN] n-, in the surface layer of the graphite material, the element ratio of nitrogen to oxygen is 0.001-0.3. The graphite material disclosed by the invention has relatively good dispersing capacity, swelling of a polymer coating layer is controlled, in addition, consumption of active lithium is reduced, N / O is controlled within the range, stripping of the polymer coating layer in the circulation process can be effectively inhibited, high ionic conductivity is provided, and the service life of the graphite material is prolonged. When the composite material is applied to a battery, the first effect, the rate charging ratio and the normal-temperature and high-temperature capacity retention ratio of the battery can be improved.

The application belongs to the technical field of polymer coating, and particularly relates to an organic-inorganic hybrid coating and application thereof in preparation of a surface coating of building decoration materials. The organic-inorganic hybrid coating mainly comprises photocuring resin, photocuring monomer, epoxy resin, modified diamond nanosheet, modified zirconium oxide coated aluminum oxide and photoinitiator. The photocuring resin, photocuring monomer and epoxy resin endow the coating with good toughness and rigidity, and the modified diamond nanosheet and modified zirconium oxide coated aluminum oxide serve as wear-resistant fillers to endow the coating with good wear resistance. The organic-inorganic hybrid coating has strong adhesion strength to the building material substrate, and has high gloss, gloss uniformity, scratch resistance, wear resistance and impact resistance, can replace the traditional sintered glaze layer, reduce energy consumption and improve product quality, and can be used as a coating for surface decoration of building decoration materials to replace the traditional glaze layer.

The invention provides a water-based polymer coating for high-viscosity expansive soil and a preparation method of the water-based polymer coating. The water-based polymer coating comprises the following raw material components: a modified SBS copolymer, MS resin, a filler, a silane coupling agent, a catalyst and an auxiliary agent, wherein polymeric monomers of the modified SBS copolymer comprise a cross-linked chain segment monomer, a soft chain monomer and a hard chain monomer, the cross-linked chain segment monomer is of a three-branch polyether structure, and each chain is provided with a double bond and a-Si (OR) 3 group; a flexible continuous phase with modified SBS as a main body is constructed, and a silane-containing cross-linked chain segment and nano filler synergistic structure is introduced, so that the coating has excellent waterproof barrier property, high deformation adaptability and long-term bonding stability to an expansive soil base surface; therefore, the problems that an existing waterproof coating is prone to cracking and debonding and insufficient in durability in the expansive soil slope are solved.

The invention discloses a preparation method of a bipolar plate composite coating based on a high-entropy alloy and a conductive polymer, which comprises the following steps: firstly, electro-depositing a layer of high-entropy alloy coating on the surface of a pretreated bipolar plate, and then continuously carrying out electro-polymerization to prepare a polymer coating, thereby forming the composite coating. Through the mode, according to the preparation method of the bipolar plate composite coating based on the high-entropy alloy and the conductive polymer, the comprehensive performance such as corrosion resistance and conductivity of a bipolar plate is effectively improved, the performance requirement for a metal bipolar plate is met, and the preparation method has a wide application prospect in the field of corrosion protection.

The invention discloses efficient flame-retardant smoke-suppressing polyurethane and a preparation method thereof.The efficient flame-retardant smoke-suppressing polyurethane comprises a material A and a material B. The material A is prepared from liquid polyether macromolecular dihydric alcohol, liquid polyether macromolecular trihydric alcohol, polyether carbonate polyol, a chain extender, a catalyst, a hydroxylation flame-retardant smoke-suppressing agent and a surface functional ceramic forming auxiliary; the material B is prepared from castor oil and diisocyanate; wherein the hydroxylated flame-retardant smoke suppressant is formed by carrying out ion exchange reaction on ammonium polyphosphate, an ammonium molybdate smoke suppressant and an alcohol amine modifier, and the surface functional ceramic forming additive is obtained by carrying out self-polymerization on a polyphenol compound on the surface of the inorganic ceramic forming additive to form a polymer coating. According to the efficient flame-retardant smoke-suppression polyurethane provided by the invention, organic solvents such as DMF are not used in the preparation process, organic solvent pollution is eliminated from the source, the limit oxygen index of the prepared polyurethane is greater than 28%, and the prepared polyurethane passes a V-0 grade through a UL-94 vertical combustion test, is low in maximum smoke density and has excellent comprehensive properties such as mechanical properties.

A salt-philic solvent-phobic (SP2) polymer coating on a lithium anode, sodium anode, or a silicon anode selectively transports salt over solvent and is configured to promote salt-derived SEI formation on the anode. The SP2 coating can include a polymer backbone, a first side chain comprising a first moiety having salt affinity, and a second side chain comprising a second moiety immiscible with polar aprotic solvents.

The invention provides photosensitive resin, an anti-dazzle film, a preparation method of the anti-dazzle film and a degradation method of the anti-dazzle film, and relates to photosensitive resin in the field of display and optical film materials. The photosensitive resin is prepared by reaction of raw materials including a urethane acrylate oligomer, an aziridine compound and an acrylic monomer, and the molecular structure of the photosensitive resin has a beta-amino ester bond and an ultraviolet-curable acrylate group. The degradable photosensitive resin is provided by introducing beta-amino ester bonds into the photosensitive resin, so that the anti-dazzle film prepared from the coating composition containing the photosensitive resin can be quickly hydrolyzed and degraded under a mild hydrothermal condition, the problem of pollution of a polymer coating in electronic waste is fundamentally solved, and the anti-dazzle film has the advantages of high anti-dazzle performance and the like. And the environmental problem caused by the method can be effectively relieved.

A method for inter-substrate transfer of microelectronic devices includes applying a polymer coating to a top surface of a microelectronic device located on a first substrate, depositing an ultraviolet-transmissive adhesive on a second substrate, contacting the polymer-coated top surface of the microelectronic device to the adhesive to bond the microelectronic device to the second substrate, detaching the microelectronic device from the first substrate, and, while the bottom surface of the microelectronic device faces a third substrate, irradiating and ablating the polymer coating with ultraviolet laser light through the second substrate and the adhesive to transfer the microelectronic device from the second substrate to the third substrate via laser lift-off. The method allows for use of ultraviolet-transmissive adhesives, with the polymer coating protecting the microelectronic device from damage by ultraviolet light that, in the absence of the polymer coating, would be transmitted by the adhesive during laser lift off.

The invention belongs to the technical field of coating protection, and particularly relates to a preparation method of a single-component high-temperature fast curing silver-aluminum polymer coating applied to the surface of a coating layer. Comprising 175-180 parts of modified epoxy resin; 95 to 100 parts of flaky aluminum silver powder; 180-200 parts of a mixed solvent of dimethylbenzene and / n-butyl alcohol; 100 to 120 parts of dicyandiamide; 25 to 40 parts of 3-(3, 4-dichlorophenyl)-1, 1-dimethylurea; 10 to 12 parts of sodium molybdate; 4-8 parts of graphite; 1 to 2 parts of polydimethylsiloxane; 2 to 6 parts of a wetting agent HY-352; 3-5 parts of fumed silica; 0.5 to 3 parts of dimethyl silicone oil; and 0.2-2 parts of a hydroxymethyl cellulose agent. The coating disclosed by the invention has the advantages of thin coating, high-temperature rapid curing, relatively good corrosion resistance, good combination with a coating layer and the like, and also has excellent storage stability.

The utility model provides a rotor and a motor, and belongs to the technical field of motors. Wherein the rotor comprises an iron core and a permanent magnet, a plurality of slotted hole groups are annularly distributed on the iron core at intervals, each slotted hole group comprises at least one slotted hole, the slotted holes penetrate through the iron core along the axial direction, the end part of at least one slotted hole in each slotted hole group extends to the periphery of the iron core, and a polymer coating layer is arranged on the periphery of the iron core; the number of the permanent magnets is multiple, and the multiple permanent magnets are correspondingly arranged in the slotted holes. According to the utility model, no magnetic isolation bridge is arranged at the periphery of the rotor, so that the problem of magnetic leakage can be reduced, and the permanent magnetic flux of the rotor can be improved. The polymer coating layer can reduce the problem that the permanent magnets are thrown out at a high rotating speed, and compared with a carbon fiber coating sleeve arranged on the periphery of the rotor, the polymer coating layer can reduce the cost. Therefore, the magnetic flux leakage problem can be improved on the basis of reducing the cost, the torque of the motor is improved, and the power density of the motor is increased.

The invention relates to the technical field of polymer coatings, in particular to a solvent-free permeation-resistant anti-corrosion polymer coating and a preparation method thereof. The invention relates to a preparation method of a solvent-free permeation-resistant anti-corrosion polymer coating. The preparation method comprises the following steps: preparation of an MXene nanosheet, preparation of a modified MXene filler, preparation of a slow-release corrosion inhibitor and preparation of a polymer coating. The double modified MXene and the slow-release corrosion inhibitor are adopted to synergistically improve the corrosion resistance of the coating. Modified MXene is subjected to intercalation modification by tannic acid and phytic acid, so that the modified MXene has physical barrier and chemical corrosion inhibition characteristics, the compatibility with a resin interface is enhanced, and the permeation resistance of a solvent-free coating is improved; according to the slow-release corrosion inhibitor, porous titanium-based oxide is used for loading MBT, slow release is triggered when the coating is damaged, active repairing is achieved, the pain point that a traditional coating is damaged and fails is solved, and the corrosion resistance in the severe environment is greatly improved.