98 results about "Bond coating" patented technology

A secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and a separator. The positive electrode sheet comprises a positive electrode active material layer, the positive electrode active material layer comprises a positive electrode active material, the negative electrode sheet comprises a negative electrode active material layer, and the negative electrode active material layer comprises a negative electrode active material. The coating weight of the positive electrode active material layer is Wz, the coating weight of the negative electrode active material layer is Wf, and Wz and Wf satisfy: 1.6Wf≤Wz≤2.2Wf and 3.25mg / cm2≤Wf≤5.84mg / cm2. Dv99 of the positive electrode active material is 27 μm to 33 μm, and Dv99 of the negative electrode active material is 23 μm to 28 μm. The separator comprises a separator substrate, a first bonding coating, and a second bonding coating, wherein the first bonding coating comprises a first polymer binder, the average particle size of the first polymer binder is 0.3 μm to 3 μm, the second bonding coating comprises a second polymer binder, and the average particle size of the second polymer binder is 10 μm to 38 μm. By means of the configurations, the cycle performance and high-temperature stability of the secondary battery can be improved.

An electrochemical device and an electronic device. The Dv99 of a positive electrode active material in a positive electrode sheet of the electrochemical device is 27 μm to 33 μm, and the Dv99 of a negative electrode active material in a negative electrode sheet of the electrochemical device is 23 μm to 28 μm; a positive electrode current collector in the positive electrode sheet integrally extends to form a plurality of positive electrode tabs; a negative electrode current collector in the negative electrode sheet integrally extends to form a plurality of negative electrode tabs; a separator comprises a separator substrate, a first bonding coating and a second bonding coating, and the first bonding coating and the second bonding coating are respectively arranged on two sides of the separator substrate; the first bonding coating comprises a first polymer binder having an average particle size of 0.3 μm to 3 μm; and the second bonding coating comprises a second polymer binder having an average particle size of 10 μm to 38 μm. The electrochemical device has good dynamic performance during cycling and good high-temperature stability.

A secondary battery and an electrical device. In the secondary battery, a positive electrode sheet comprises a positive electrode active material, and a negative electrode sheet comprises a negative electrode active material, the Dv99 of the positive electrode active material being 27μm to 33μm, and the Dv99 of the negative electrode active material being 23μm to 28μm. A separator comprises a separator base material, a first bonding coating and a second bonding coating, the first bonding coating and the second bonding coating being arranged on two sides of the separator base material respectively. The first bonding coating comprises a first polymer binder, the average particle size of the first polymer binder being 0.3μm to 3μm. The second bonding coating comprises a second polymer binder, the average particle size of the second polymer binder being 10μm to 38μm. An electrolyte comprises an organic solvent, a lithium salt and an additive, wherein the organic solvent comprises a chain carboxylic ester, and, on the basis of the mass of the electrolyte, the mass percentage content of the chain carboxylic ester is 6% to 56%. The secondary battery has good cycle dynamic performance and high-temperature stability.

The utility model relates to the technical field of rotary kilns, in particular to an energy-saving heat preservation structure of a rotary kiln. Comprising a rotary kiln cylinder and a refractory lining arranged in the rotary kiln cylinder, a composite heat preservation layer is arranged between the inner wall of the rotary kiln cylinder and the refractory lining, the composite heat preservation layer comprises a heat insulation plate and a heat insulation bonding coating arranged between the heat insulation plate and the inner wall of the rotary kiln cylinder, and the heat insulation bonding coating is used for heat insulation and used for bonding and fixing the heat insulation plate. And one surface of the heat insulation plate is coated with a heat insulation bonding coating. The heat insulation bonding coatings on the inner wall of the rotary kiln cylinder and the surface of the heat insulation plate are combined with the multi-structure staggered arrangement design, and the heat insulation efficiency, the structural reliability and the economical efficiency are remarkably improved through the synergistic effect of three mechanisms of heat resistance superposition, stress buffering and construction optimization.

The invention provides a self-adhesive coating for silicon steel and amorphous alloy and a preparation method of the self-adhesive coating. The self-adhesive coating comprises the following components in parts by mass: 20-60 parts of epoxy resin, 10-20 parts of modified organic silicon resin, 1-5 parts of hyperbranched epoxy resin, 1-10 parts of a curing agent, 1-5 parts of aminosilane hydrolysate, 1-3 parts of a dispersing agent, 1-10 parts of rock wool fiber powder, 2.5-8 parts of an auxiliary agent and 40-80 parts of a solvent. Wherein the modified organic silicon resin is obtained by reacting octa-amino POSS (Polyhedral Oligomeric Silsesquioxane), trimethylolpropane triglycidyl ether and amino silicon oil. The compatibility among the components is optimized, the self-bonding effect of the product is greatly improved, the stability and weather resistance of the coating are also improved, the defects in the prior art are overcome, and good application prospects are achieved.

The present application provides a secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte; the positive electrode sheet comprises a positive electrode active material layer, and the negative electrode sheet comprises a negative electrode active material layer; the coating weight of the positive electrode active material layer is Wz, the coating weight of the negative electrode active material layer is Wf, and Wz and Wf satisfy that: 1.6Wf≤Wz≤2.2Wf, and 3.25 mg / cm2≤Wf≤5.84 mg / cm2. The separator comprises a separator substrate, a first bonding coating and a second bonding coating, and the first bonding coating and the second bonding coating are respectively arranged on the two sides of the separator substrate. The electrolyte comprises a chain-like carboxylic acid ester, and based on the mass of the electrolyte, the mass percentage content of the chain-like carboxylic acid ester is 6% to 56%. The secondary battery provided by the present application has good cycle performance and high-temperature storage performance under fast charging conditions.

The invention belongs to the technical field of tension adjustable control devices, and discloses an intelligent manufacturing method and system for a lithium battery current collector based on ultrathin aluminum foil defects, and the ultrathin aluminum foil is a metal aluminum foil with dense hole areas and uneven thickness defects; in the manufacturing process, the hot-pressing conductive resin powder is adopted to fill the holes and is fixed by the base material film, so that stress concentration is prevented from being generated in a dense area of the holes; then, the coating gap between the coating and the detection head and the thickness change of the pressure compensation ultrathin aluminum foil are controlled, and finally, a plurality of floating rollers are matched with the coating and the detection head to jointly adjust tension parameters in a processing section, so that the thickness of the finally prepared carbon-coated positive electrode current collector foil is uniform; and conductive bonding coatings are formed on the upper surface and the lower surface of the ultrathin aluminum foil. Inherent defects of the ultrathin aluminum foil are fully utilized, defect detection and tension control are combined, real-time feedback and dynamic adjustment are achieved, efficient operation of a production line is ensured, and the defective rate and the production cost are reduced.

The invention provides a laser shock strengthening rapid coating method, and belongs to the technical field of laser strengthening. The laser shock peening rapid coating method comprises the following steps that the surface of a substrate material is pretreated, and the substrate material to be coated is obtained; coating the surface of the substrate material to be coated with a coating material to form a coating layer; an absorption layer and a restraint layer are arranged on the surface of the coating layer, and a substrate material to be reinforced is obtained; and the substrate material to be strengthened is subjected to laser shock treatment, then cooling and cleaning are conducted, and the substrate material with the strengthened surface is obtained. According to the rapid coating method for laser shock peening, the materials and the thicknesses of the absorption layer and the restraint layer are specially limited, so that laser can act on the coating to the maximum extent, the coating material can form a compactly-attached coating on the surface of the substrate material more quickly, and the bonding strength between the coating and the substrate material is remarkably improved.

A coating system for a turbine engine component is disclosed. The coating system includes a substrate, an optional bond coat, a synthetic oxide layer and a top coat. The synthetic oxide layer is formed by atomic layer deposition and includes two or more oxides.

The application discloses an electrochemical device and a diaphragm thereof. The diaphragm of the electrochemical device comprises a base film and a coating layer formed on two side surfaces of the base film. The coating layer comprises a ceramic coating layer and a thermal bonding coating layer. The ceramic coating layer and the thermal bonding coating layer formed on the same side of the base film do not coincide with each other. The thermal bonding coating layer formed on one side of the base film does not coincide with the projection of the thermal bonding coating layer formed on the other side of the base film on the base film. After the diaphragm is hot-pressed with an electrode sheet, the electrode can be effectively fixed, so that the production efficiency of a laminated sheet preparation battery cell process is improved. Meanwhile, the diaphragm also has the advantages of low air permeability, high conductivity, simple production process and the like.

A bond coat material providing unexpectedly high resistance to thermal cycle fatigue and sulfurization and unexpectedly extended thermal cycle life in the high temperature environment of a gas turbine engine component in the presence and absence of sulfur contains: a) 10 to 30 weight percent chromium, b) at least one of tantalum and molybdenum in a total amount of 3 to 15 weight percent, c) 5 to 13 weight percent aluminum, d) 0.1 to 1.4 weight percent silicon, e) 0.1 to 0.8 weight percent yttrium, f) 0 to 1.2 weight percent carbon, g) 0 to 1 weight percent dysprosium, h) 0 to 1 weight percent cerium, i) the balance being nickel, and the percentages of a) through i) adding up to 100 weight percent. The total amount of tantalum and molybdenum and the amounts of aluminum and silicon are each critical to avoid delamination of the top coat from the bond coat.

Methods, compositions, and composition packages are described for the spray coating of a membrane for waterproofing concrete tunnel applications. After the primer coating is applied to a tunnel surface, the coating composition is sprayed to form a membrane, and then concrete is poured or sprayed against the membrane to bond to it. The coating compositions comprise two or more acrylate monomers, as well as an initiator, an accelerator, and an optional additive. Preferably, the coating composition is prepared using a two-part package, one part containing the initiator, the other the accelerator, and each part containing the monomers and optional additives, so that the two parts can be shipped to the application site and mixed in a 1:1 ratio during spraying.The waterproofing coating composition provides excellent adhesion to concrete.

A magnet includes a magnet matrix and a bond coating. The bond-coating is attached to at least part of an outer surface of the magnet matrix. The bond-coating includes an adhesive composition, which includes a base resin and a foaming agent. The foaming agent in the bond-coating is close to the magnet matrix, and a distribution height of the foaming agent is less 50% of a thickness of the bond-coating in a cross-section.

An improved discontinuous aqueous adhesive coating is disclosed that contains large polymer particles or agglomerates having an average particle size (D50) greater than 5 microns. The coating can be applied to one or both sides of a porous membrane. The method of forming the coating involves applying an aqueous slurry containing large polymer particles having a D50 greater than 5 microns to a porous membrane. The method of application can be a spray method.

The invention discloses a titanium implant surface hydrogen sequential release soft tissue combination promoting coating and a preparation method and application thereof, and belongs to the technical field of dental material preparation. The preparation method comprises the following steps: preparing micro-arc titanium oxide; the preparation method comprises the following steps: synthesizing mesoporous polydopamine nanoparticles (mPDA NPs) through a soft template method; the preparation method comprises the following steps: dissolving AB in an aqueous solution containing mesoporous polydopamine nanoparticles (mPDA NPs), uniformly mixing, carrying out centrifugal treatment, and collecting precipitate, so as to obtain AB-coated mPDA NPs; loading AB (at) mPDA NPs on the surface of micro-arc titanium oxide, and constructing on the titanium surface to obtain a hydrogen release coating HP-Mti, namely the titanium implant surface hydrogen sequential release soft tissue combination promoting coating. Based on the nano confinement effect, the hierarchical nanostructure limits the hydrolysis of AB, thereby prolonging the hydrogen production time. Meanwhile, the water contact angle is reduced due to the loading of the AB-coated mPDA nano-particles, so that the biocompatibility is favorably improved.

The application discloses a surface treatment process of a valve core, adopts tungsten carbide and nickel-based alloy composite design, and remarkably improves the service life of the valve core under extreme environment. By introducing laser quenching treatment, the surface hardness and wear resistance are enhanced, and defects such as cracks are avoided. By adopting plasma spraying technology, the tungsten carbide powder is melted and high-speed sprayed to the surface of the valve core by means of high-temperature plasma flame, a dense, uniform and well-bonded coating is formed, and the wear resistance, corrosion resistance and sealing performance are improved. In addition, the ion nitriding treatment is used to generate a high-hardness nitride layer, forming a "hard shell-tough core" structure, and prolonging the wear resistance life. Finally, the grinding and polishing treatment is used to improve the surface flatness and smoothness, and ensure the sealing reliability. The application combines multiple advanced processes, remarkably improves the comprehensive performance of the valve core, and guarantees the stable operation of the valve under complex and severe working conditions.

Disclosed is a composition comprising: one or more isocyanate functional prepolymers; one or more catalysts for the reaction of isocyanate moieties and active hydrogen containing moieties; one or more mercapto silanes; one or more amino silanes, isocyanato silanes, or mixtures thereof; one or more reinforcing fillers comprising one or more high surface area carbon blacks; one or more untreated calcium carbonates; one or more polyisocyanates having an isocyanate functionality of about 2 or greater; and one or more linear plasticizers. Preferably, the isocyanate functional prepolymers are prepared in the presence of at least a portion of the linear plasticizers. Preferably, the isocyanate functional polymers are prepared in the presence of a malonic acid dialkyl ester. The composition can be a one-part adhesive composition. Also disclosed is a method of applying the composition to a substrate. The composition bonds to difficult to bond coatings, such as coatings prepared from compositions comprising silanized components such as silanized acryloyl polyols or coatings having silica clusters, without primer.

The utility model discloses a novel assembly type damping felt sound insulation heat preservation heat insulation thin type single upper chord single lower chord single web strut muscle laminated board, including truss, the below of truss is provided with fine stone concrete, the below of fine stone concrete is provided with composite carbon fiber net, the below of composite carbon fiber net is provided with nano aerogel bonding coating, the below of nano aerogel bonding coating is provided with damping sound insulation felt, the below of damping sound insulation felt is provided with nano aerogel bonding coating no.

This invention relates to an aqueous one-component thermosetting self-adhesive coating for thin-gauge silicon steel sheets and its preparation method. The aqueous one-component thermosetting self-adhesive coating for thin-gauge silicon steel sheets comprises the following components: modified epoxy resin, modified silica, additives, and deionized water. The modified epoxy resin is obtained by first blending polytetrahydrofuran glycol, sorbitol, and isophorone diisocyanate, and then reacting them with the epoxy resin. The modified silica is obtained by blending silica containing double bonds, isocyanate-modified acrylate monomers containing epoxy groups, and trimethylolpropane triacrylate. The modified epoxy resin of this invention introduces polyurethane and a network structure, which can improve insulation performance, compatibility, and heat resistance. The modified silica of this invention introduces urethane groups, epoxy groups, a network structure, and benzene rings, which can improve compatibility, adhesion, and heat resistance.

A method of manufacturing rebar tie wire, including heating and mixing a high density polyethylene (HDPE), a bonding agent, and a coloring agent to form a mixture, heating an inner wire portion, coating the inner wire portion with the mixture to form a coated inner wire portion, and quenching the coated inner wire portion.

The utility model relates to the technical field of ceramic plates, in particular to a high-strength ceramic plate which comprises a ceramic panel, a bonding coating is coated on the surface of the ceramic panel, a reinforcing layer is bonded on the surface of the bonding coating, the reinforcing layer is a carbon fiber layer, a plurality of grooves are formed in the surface of the ceramic panel, and the grooves are communicated with the ceramic panel. The adhesive coating is fixedly connected with the inner wall of the groove, an elastic layer is connected to the side, away from the ceramic panel, of the reinforcing layer in a glued mode, and the elastic layer is an elastic resin layer. According to the utility model, through the arrangement of the reinforcing layer, when external impact occurs, the reinforcing layer made of the carbon fiber material is firstly stressed, and the carbon fiber has higher tensile strength and elasticity modulus and can generate elastic deformation to a certain extent when bearing the impact, so that concentrated impact force can be dispersed to other positions on the ceramic panel; and further, the situation that the ceramic panel is subjected to crack extension and fragmentation due to overlarge local stress is avoided.

A method of removing an environmental barrier coating from a coated component is provided. The method may include contacting the coated component with an etchant comprising 5-70 vol% hydrogen fluoride and a solvent. The hydrogen fluoride reacts with a silicon oxide in a thermally grown oxide layer located between the bond coating and the environmental barrier coating. A bond coat is located between the silicon-containing substrate and the thermally grown oxide layer within the coated component, the bond coat comprising a silicon-containing material.

Environmental barrier coatings including a bondcoat layer including silicon and a rare earth silicate-based hermetic layer and rare earth silicate-based non-hermetic layer are provided. The rare earth silicate-based hermetic layer is deposited on the bondcoat via a thermal spray process and has an elastic modulus ranging from 100 GPa to 180 GPa. The at least one rare earth silicate-based non-hermetic layer is deposited on the rare earth silicate-based hermetic layer and has an elastic modulus ranging from 50 GPa to 100 GPa. Coated gas turbine engine components and methods for coating gas turbine engine components are also provided.

The present application provides a secondary battery and an electronic device. The secondary battery comprises an electrode assembly that is of a stack structure; the electrode assembly comprises positive electrode sheets, a separator, and a negative electrode sheet; the positive electrode sheets comprise a double-sided positive electrode sheet and a single-sided positive electrode sheet located on the outermost side of the electrode assembly in a stack direction; the single-sided positive electrode sheet comprises a positive electrode current collector and a positive electrode material layer provided on one surface of the positive electrode current collector, and the positive electrode material layer faces the double-sided positive electrode sheet; the positive electrode material layer comprises a bonding coating area and a non-coating area, the bonding coating area comprises a first binder, the non-coating area comprises a second binder, and the bonding coating area comprises a plurality of sub-areas arranged at intervals. The bonding coating area of the single-sided positive electrode sheet comprises the plurality of sub-areas, so that the problems of curling and wrinkling of the single-sided positive electrode sheet can be mitigated, the wettability of the single-sided positive electrode sheet is improved, the problems of purple spots, lithium precipitation and capacity attenuation of the secondary battery can be mitigated, and the influence on the energy density of the secondary battery is also small.

The invention relates to a self-adhesive coating, aims to solve the problem of how to improve the production continuity of a silicon steel self-adhesive coating, and provides a continuous production process and equipment for the silicon steel self-adhesive coating. The continuous production process of the silicon steel self-adhesive coating comprises the following operation steps that a first steel coil and a second steel coil are coiled and uncoiled, the tail of the first steel coil and the head of the second steel coil are cut, and the tail of the first steel coil and the head of the second steel coil are spliced and sewn to form a continuous steel coil; the method comprises the following steps: conveying a continuous steel coil to a coating machine through a plurality of tension rollers so as to coat the surface of the continuous steel coil with a self-adhesive coating, curing the continuous steel coil with the self-adhesive coating through a floating heating furnace, and cooling the continuous steel coil with the self-adhesive coating through a floating cooler; the continuous steel coil with the self-adhesive coating is output through a plurality of tension rollers, and the continuous steel coil is cut, divided and coiled to obtain a finished product, so that the effect of improving the production continuity of the silicon steel self-adhesive coating is achieved.

A bond coating material providing unexpectedly high thermal cyclic fatigue resistance and sulfidation resistance, and unexpectedly prolonged thermal cycle life in high temperature environments of gas turbine engine components with and without the presence of sulfur contains: a) 10% to 30% by weight chromium, b) at least one of tantalum and molybdenum in a total amount of 3% to 15% by weight, c) 5% to 13% by weight aluminum, d) 0.1% to 1.4% by weight silicon, e) 0.1% to 0.8% by weight yttrium, f) 0% to 1.2% by weight carbon, g) 0% to 1% by weight dysprosium, h) 0% to 1% by weight cerium, i) the balance being nickel, and the percentages of a) to i) adding up to 100% by weight. The total amount of tantalum and molybdenum, and the amounts of aluminum and silicon are each critical for avoiding delamination of a top coat from a bond coat.

The disclosure refers to a multi-layer packaging material comprising, from its outermost side to its innermost side, the following layers: a cellulose-based material layer having a grammage from 40 to 120 g / m2; a tie coating layer, the tie coating layer comprising a polymeric binder; an intermediate polymeric coating layer, the intermediate polymeric coating layer comprising a polyvinyl alcohol (PVA) polymer; a vacuum deposited metallization layer; and an inner polymeric coating layer, the inner polymeric coating layer comprising a material selected from a group comprising acrylic copolymers, polyesters, polyurethanes, polyester copolymers, polyurethane copolymers, vinyl acetates copolymers, chloride copolymers and any combination thereof.

The present invention addresses the problem of providing a multilayer substrate that enables transmission of a metal layer at higher speeds without a chemically bonding coating having to be applied to the metal layer, a method for manufacturing the multilayer substrate, and an electronic device. As a solution, a plurality of laminated articles (56) are provided in layers, said laminate articles (56) having: a first insulating layer (26) in which a patterned first metal layer (40) is formed on a first surface (26a), a second insulating layer (24) laminated on a second surface (26b) of the first insulating layer (26), and formed by embedding a patterned second metal layer (22) on a third surface (24a); a third insulating layer (44) and a fourth insulating layer (48) laminated in the stated order on the first surface (26a) so as to embed the first metal layer (40); a first via (34) formed through the first insulating layer (26) and the second insulating layer (24); and a second via (54) formed through the third insulating layer (44) and the fourth insulating layer (48). At least the second insulating layer (24) and the fourth insulating layer (48) are made of a material having a low dielectric loss tangent.

A coating system and a method of forming the same are provided. The coating system may be disposed on a surface of a substrate. The coating system may include: a bond coat on a surface of a substrate; a thermal barrier coating on the bond coat, the thermal barrier coating defining a plurality of elongate surface connecting voids; and a protective composition disposed in at least some of the plurality of elongate surface connecting voids of the thermal barrier coating. The protective composition may include an oxide or a mixture of oxides including an alkaline earth element and at least one selected from the group consisting of aluminum, gallium, or a combination of aluminum and gallium.

The application discloses a wide-temperature-range self-lubricating inorganic phosphate-based adhesive coating and a preparation method and application thereof, and relates to the technical field of wide-temperature-range lubricating coating. The adhesive coating raw material comprises an aluminum phosphate adhesive and a filler; the filler comprises graphite nanosheets, chromium oxide-doped molybdenum disulfide and mullite whiskers. The aluminum phosphate / oxidized chromium-doped molybdenum disulfide / graphite nanosheet / mullite composite lubricating coating is prepared by adopting the air spraying method with the aluminum phosphate adhesive as a matrix and the graphite nanosheets, the chromium oxide-doped molybdenum disulfide and the mullite whiskers as fillers, and can be applied to the lubrication and protection of key moving parts in aerospace.