229 results about "Porous coating" patented technology

The invention discloses a preparation method and application of a plasma etching resistant coating, and relates to the technical field of coatings. Comprising the steps that a yttrium oxide layer is prepared through a low-pressure plasma spraying method, the yttrium oxide layer comprises a relative porous layer (the porosity is 1%-3%) and a compact layer (the porosity is smaller than 1%) which are sequentially stacked, and the relative porous layer is used for making contact with a base body. By adopting low-pressure plasma spraying, the yttrium oxide layer with controllable coating morphology and thickness can be obtained, and the thermal expansion coefficient mismatch between the substrate and the compact layer can be effectively relieved through the relative porous layer close to the substrate; the compact layer on the surface is uniform in structure, low in porosity, excellent in cohesion strength and excellent in plasma etching resistance, plasma and a matrix can be isolated, and generation of particles in the etching process is avoided. The compact layer and the relatively porous coating are both prepared on the basis of the same powder material and by adopting the same coating deposition equipment, so that the production efficiency can be improved, and the production cost and the pollution risk caused by transfer between production steps can be reduced.

Provided is a method for determining the adhesive penetration into at least one porous coating material which is pressed with at least one carrier plate and at least one adhesive layer arranged on the carrier plate. The adhesive penetrates or rises into the at least one porous coating material during the pressing process.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

The invention provides an amino acid compound fertilizer for improving nitrogen and phosphorus utilization rate and a preparation method. The compound fertilizer is based on urea, ammonium sulfate, monoammonium phosphate and potassium chloride according to a specific proportion, glutamic acid / glycine compound amino acid and iron, zinc and boron trace elements are added, and the 18-12-18 proportioning fertilizer with a slow release function is formed through the synergistic effect of amino acid chelation pretreatment and a high tower granulation process. Amino acid competitive inhibition phosphorus immobilization and activation of crop nitrogen metabolic pathways are utilized, a porous coating structure is constructed by means of a modified starch binder, the technical effects that the nitrogen utilization rate is increased by 4% or above and the phosphorus utilization rate is increased by 6% or above are achieved, and the bottleneck of nutrient waste of traditional balanced fertilizers is broken through.

Battery cell, including: a case; and an electrode assembly located inside the housing, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator film, the separator film being arranged between the positive and the negative electrode plates, where The negative electrode plate comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector. The negative electrode film layer comprises an active material of the negative electrode. The negative electrode film layer comprises a first negative electrode film layer located away from the negative electrode current collector and a second negative electrode film layer located near the negative electrode current collector. The first negative electrode film layer comprises a first active material of the negative electrode, and the second negative electrode film layer comprises a second active material of the negative electrode.The first active material of the negative electrode contains a silicon-based material and a carbon-based material, the second active material of the negative electrode contains a carbon-based material, and the mass fraction of the silicon element in the negative electrode film layer is 0.5% to 6%. The separator film comprises a base film, a first porous coating on the side of the base film facing the negative electrode plate, and a second porous coating on the side of the base film facing the positive electrode plate. Both the first and second porous coatings contain filler particles.

A separator for an electrochemical device having a porous polymer substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous polymer substrate. The porous coating layer includes a dispersing agent, a mixture of inorganic particles and a particle-type binder polymer, and a polyvinyl pyrrolidone binder polymer positioned on the whole or a part of the surface of the inorganic particles in the mixture of the porous coating layer to connect and fix the inorganic particles with one another. The content of the polyvinyl pyrrolidone binder polymer is 2 to 20 parts by weight based on 100 parts by weight of the total content of the particle-type binder polymer and the polyvinyl pyrrolidone binder polymer.

The present application provides a method for preparing a high-barrier, degradable, and environmentally friendly packaging material, as well as packaging materials and packaging articles. The method includes transferring and bonding a prefabricated high-resistance layer composed of a water-based, easily peelable substrate layer, a coating layer, and a water-based porous coating layer onto a paper layer to produce a plastic-free, high-barrier, degradable, and environmentally friendly packaging material. The multi-film prefabricated high-resistance layer, composed of multiple layers such as a second coating layer and a second water-based porous coating layer, has ultra-high barrier properties. The present application can save more than 68% of vacuum pump energy consumption. The resulting high-barrier, degradable, and environmentally friendly packaging material and its packaging are degradable, pollution-free, and have ultra-high barrier properties.

The invention discloses a lumbar interbody fusion cage and an implementation method thereof.The lumbar interbody fusion cage comprises a base body, the base body comprises an upper end plate and a lower end plate, and the surface curvature of the upper end plate and the surface curvature of the lower end plate are matched with the lumbar interbody curvature of the human body; the porous coatings comprise a single coating and a multi-coating, the porous coatings cover the outer surfaces of the upper end plate and the lower end plate, the porous coatings are made of biological materials, the multi-coating is composed of a plurality of different biological material layers, and each layer of the multi-coating has different porosity and biocompatibility; the supporting structure comprises a flexible hinge, a through hole is formed in the inner side of the base body, the through hole penetrates through the left side and the right side of the base body, and the flexible hinge is matched with the through hole to enable the base body to be bent to a certain extent when the base body is subjected to external force. According to the lumbar interbody fusion cage, through optimization design, the biomechanical suitability, the biocompatibility and the bone healing effect are remarkably improved.

The invention relates to a lithium metal negative electrode and a preparation method thereof, a lithium metal battery, a battery pack and electric equipment. The lithium metal negative electrode comprises a lithium metal layer and a porous coating which are laminated, the porous coating comprises a lithium-loving metal component and a nitrogen-containing mesoporous carbon material. The porous coating disclosed by the invention comprises the lithium-loving metal component and the nitrogen-containing mesoporous carbon material, the nitrogen-containing mesoporous carbon material is utilized to provide enough buffer space for deposition of Li ions, and nitrogen and the lithium-loving metal are utilized to further provide affinity sites for Li deposition and inhibit generation of lithium dendrites, so that the charging capacity and the cycling stability of the battery are effectively improved.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

A separator, an electrochemical device comprising the same, and an electronic device wherein the separator (30) comprises a porous substrate (31) and a porous coating layer (32) provided on at least one surface of the porous substrate (31), the porous coating layer (32) comprising a polymer, the polymer comprising polymer particles; the number of polymer particles having a maximum diameter between 5 [mu] m and 14 [mu] m is 100 to 180 in a 130 [mu] m * 100 [mu] m region of the surface of the porous coating layer (32). The large particle size polymer in the diaphragm can increase the interface gap at the corner of the electrochemical device. Therefore, in the charge-discharge cycle process of the electrochemical device, the electrolyte at the corner interface can be well infiltrated, and the corner purple spot / black spot problem of the electrochemical device is effectively improved.

The present invention relates to a kit for improving food shelf life comprising a sheet-like element component and an alkaline component. The sheet-like element component comprises a particulate filler comprising a mineral a binder and an oxygen scavenger. The oxygen scavenger is a compound comprising at least two phenolic hydroxyl groups, which can be deprotonated by the alkaline component, thus activating the oxygen scavenger. Further aspects of the present invention relate to an activated sheet-like element formed from the inventive kit, a process for the manufacture of a kit for improving shelf life, a process for the manufacture of a sheet-like element component, a process for activating the sheet-like element component, a supply device comprising the activated sheet-like element, a food packaging comprising the activated sheet-like element and the use of the kit or the activated sheet-like element in a food packaging and for prolonging food shelf life.

The invention provides a diaphragm, an electrochemical device and an electronic device, and relates to the technical field of electrochemical energy storage, the diaphragm is used for the electrochemical device, the diaphragm comprises a base membrane and a porous coating arranged on at least one side of the base membrane, and the porous coating comprises graphene oxide; the lamellar thickness of the graphene oxide is a nm, the volume particle size Dv50 of the graphene oxide is z [mu] m, and z / a is greater than or equal to 1000 and less than or equal to 6000. The diaphragm provided by the invention has good thermal stability and ion transmission effect, so that the risk of lithium precipitation is effectively reduced.

This disclosure relates to a separator for a lithium secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. Specifically, the separator includes a porous coating divided into a top layer, an intermediate layer, and a bottom layer, wherein the top layer contains a higher content of a particulate binder polymer than the bottom layer, and the porous coating includes a dispersant having carboxyl and ethylene glycol groups.

The present application belongs to the field of biomedical materials and computer aided design technology, and discloses a kind of porosity gradient adjustable hip joint prosthesis porous coating topological optimization method.The present application is aimed at solving the problems of existing design, such as unadjustable porosity distribution, gradient mutation, difficult to balance mechanical properties and bone integration, and the gap between topological optimization and manufacturing constraints.The method introduces nonlinear porosity gradient constraints and adaptive optimization mechanism in the process of topological optimization through the steps of geometric modeling and boundary condition definition, nonlinear porosity gradient field generation, finite element analysis, sensitivity analysis, density filtering and porosity constraint processing, optimization criterion updating and convergence judgment, and realizes the smooth transition of porosity from the core to the surface of the prosthesis.The present application can optimize the mechanical support and biological integration performance simultaneously, eliminate non-manufacturable structures, and adjust the gradient parameters and modularize the extension, providing an efficient and reliable calculation method for personalized hip joint prosthesis design, and having significant engineering and clinical application value.

The application provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell and an electrode assembly arranged in the shell. The electrode assembly comprises a positive electrode sheet, a negative electrode sheet and a separator. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector. The separator is arranged between the positive electrode sheet and the negative electrode sheet. The separator comprises a base film and a porous coating layer arranged on one side of the base film. The shell is provided with a liquid injection hole. The liquid injection hole is arranged on one side of the electrode assembly in the height direction of the battery monomer. In the height direction of the battery monomer, at least one end of the porous coating layer is arranged beyond the negative electrode active material layer. In the embodiment of the application, the risk of local insufficient immersion of the positive electrode sheet and the negative electrode sheet in the height direction is reduced, the electrolyte distribution uniformity of the electrode assembly in the height direction is improved, the risk of lithium precipitation is reduced, and the use reliability of the battery monomer is improved.

The invention discloses an intravascular stent coating as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The intravascular stent coating is obtained by reaction of a porous coating and an anion solution containing drug molecules, the porous coating contains micro-nano albumin-polypeptide particles stacked on the surface of a stent matrix, and the micro-nano albumin-polypeptide particles are formed by co-assembly of albumin and polypeptide containing hydrophobic amino acid under induction of an oxidizing agent; the porosity of the intravascular stent coating is smaller than that of the porous coating. The intravascular stent coating has excellent biocompatibility and can achieve high loading of drugs, along with degradation of the intravascular stent coating, the released polypeptide and drugs can play dual effects, and the degradation process is beneficial to prolonging the treatment effect of the intravascular stent. The intravascular stent with the intravascular stent coating can reduce or avoid inflammatory response and postoperative complications, and has high application value.

Disclosed is a separator for an electrochemical device. The separator includes a porous polymer substrate, a porous coating layer formed on at least one surface of the porous polymer substrate and including a polymer binder and inorganic particles, and a dopamine coating layer formed on the porous coating layer and including polydopamine and dextrin. The separator has reduced thermal shrinkage even in a high temperature wet state.

The invention discloses a current collector with a gradient conductive porous coating and a preparation method and application thereof, and relates to the technical field of battery materials. The current collector comprises a base material and a gradient conductive porous coating coated on the surface of the base material; wherein the gradient conductive porous coating comprises two different carbon materials and sodium-philic metals with different particle sizes. When the current collector is applied to the negative-electrode-free sodium metal battery, the conductive gradient formed by different carbon materials improves the migration of ions from electrolyte to the current collector and the particle size induced gradient formed by sodium-philic metals with different particle sizes promotes the fluoride-based electrolyte to penetrate into the current collector to form F-rich inorganic SEI, so that the stability of the battery in the cycle process is ensured. The porous structure of the current collector can alleviate gas expansion generated by sodium deposition and adsorb gas generated in the cyclic storage process, so that the safety risk is reduced, and the cycle life of the battery is further prolonged.

The present invention relates to an electrode assembly and an electrochemical device including the same. The electrode assembly of the present invention comprises a unit electrode and a strip-shaped separator. The separator is folded in a zigzag manner, and the unit electrode is inserted into the portion where the separator overlaps. The separator comprises a porous substrate made of a polymer material and a porous coating layer formed on the upper and lower surfaces of the porous substrate, each containing inorganic particles. The thickness (Ts) of the porous substrate gradually decreases from the center of the separator in the longitudinal direction toward both ends, the total thickness (Tc) of the porous coating layer gradually increases toward both ends, and the total thickness (Ts+Tc) is maintained constant across the entire surface of the separator.

The present invention relates to a portable perfume device for both application and bubble fragrance emission, and more particularly, to a portable perfume device for both application and bubble fragrance emission, which can improve the problems existing in the prior art, can directly use the original perfume without changing the dosage form of the perfume, has a replenishable and replaceable structure, and can generate fragrance bubbles in a form that fits the skin, thereby improving the application and bubble fragrance emission of the perfume. Therefore, the coating performance of the perfume is optimized. According to the portable perfume device, the liquid perfume can be coated on the surface of a human body, and fragrance bubbles can be generated on the surface of the human body for smelling, so that the portable perfume device with the functions of coating and bubble fragrance diffusion is provided. According to one embodiment of the present invention, the portable perfume device for both application and air bubble fragrance diffusion is a device capable of being applied to a surface or carrying fragrance through air bubbles and diffusing the fragrance. The portable perfume device comprises: a perfume accommodating part for accommodating liquid perfume; a flow path supporting member which is communicated with one side of the perfume accommodating part; the water pump is arranged in the flow path supporting piece and is used for pumping the liquid perfume; the nozzle is connected with one end of the water pump; a spraying part which is communicated with the nozzle and forms a spraying port; a connecting piece connecting the upper part of the flow path support and the lower part of the ejection part, and having a connecting space formed therein; a porous coating part which is fixed to one end of the ejection part, is provided at a distance from the ejection port, and forms a retention space; an air pump which covers the outside of the flow path support member, forms an air space, and is used for pumping air; and the detachable cover body shell and the coating part are arranged at intervals, and the detachable cover body shell covers the flow path supporting piece along the peripheral surface of the air pump.

A method for creating oil-filled porous anodic oxide coatings for stainless steel is disclosed. The coating has anti-corrosion and omniphobic properties to resist both atmospheric conditions, or other conditions with exposure to vapor, and wet conditions, in which the coating is exposed to and / or immersed in liquid. The anodic oxide coating of the present invention can be made by the steps of cleaning and / or electropolishing a steel substrate, applying anodic oxidation to the steel substrate, washing the steel substrate in an organic solvent, and annealing the substrate at high temperature. To fill the porous coating with an oil, a solvent exchange method may be applied.

The invention discloses a coating material with wear resistance and self-lubricating performance as well as a preparation method and application of the coating material. The method comprises the following steps: mixing wear-resistant metal-based powder with high-temperature gas-producing high-molecular organic matter powder to obtain coated composite powder; spraying the coated composite powder onto a base material by using a plasma spraying technology to obtain a coating with a porous structure; and immersing the coating with the porous structure into a suspension containing a self-lubricating two-dimensional material, and depositing the two-dimensional self-lubricating material into the porous structure under the action of ultrasonic treatment to obtain the coating material with both wear resistance and self-lubricating performance. A porous wear-resistant framework is constructed through plasma spraying, the porous coating is obtained, and the two-dimensional self-lubricating material is embedded into pores of the porous coating by combining an ultrasonic deposition technology, so that the coating has the characteristics of high bearing capacity and low friction at the same time. The technology can effectively solve the problems that a traditional wear-resistant coating is high in friction coefficient and a self-lubricating coating is insufficient in wear resistance.

The invention discloses a production process of a fully-coated wire mesh for a water electrolysis hydrogen electrode, and relates to the technical field of manufacturing of wire meshes for water electrolysis hydrogen electrodes, and the production process comprises the following steps: S1, providing a wire mesh, hydrosol, sand grains and aluminum-containing nickel-based alloy powder; s2, mixing hydrosol and sand grains to form a gel-sand mixture, coating the surface of the metal wire mesh with the gel-sand mixture, blocking meshes of the metal wire mesh, and performing drying and curing; s3, sand blasting or polishing treatment is carried out, the metal surface is exposed, and aluminum-containing nickel-based alloy powder is sprayed to the surface of the metal wire mesh through a thermal spraying technology; s4, the metal wire mesh is immersed in water, hydrosol is dissolved, sand grains fall off, drying and curing are conducted after washing, and then the metal wire mesh is immersed in alkali liquor to dissolve aluminum in the coating; and S5, sintering the metal wire mesh to obtain the metal wire mesh. The porous coating can be fully covered on the silk screen holes, and the contact area of the thermal spraying silk screen and electrolyzed water is obviously increased, so that the catalytic effect and the productivity of hydrogen production through water electrolysis are obviously improved.

The invention provides a gradient porous coating modified current collector, application thereof and a negative-electrode-free sodium ion battery, and relates to the technical field of batteries. According to the gradient porous coating modified current collector provided by the invention, longitudinal gradient distribution of different conductive networks and pore diameters is realized by utilizing the pore forming agent and the conductive agent, rapid transmission of sodium ions is ensured, and meanwhile, a sodium-philic seed layer is formed in the pores of the bottom layer in situ, so that uniform and stable growth of the sodium-philic seed layer on the bottom layer is promoted; the long-period operation of the negative-electrode-free sodium ion battery is realized; in the first charging process, the Na3PS4 solid electrolyte is synthesized on the surface of the current collector in an electrochemical in-situ manner, so that the ionic conductivity is improved, the transmission of sodium ions is promoted, the electrolyte is isolated, and side reactions are reduced; the liquid metal microcapsules on the surface layer can release and form Ga2O3 / In2O3 when cracks are generated in circulation, a damaged conductive network is repaired in situ, meanwhile, the porous structure can relieve volume expansion in the circulation process, and stress cracking is restrained.

The invention provides an isolating membrane and a preparation method thereof, a secondary battery monomer, a battery device and a power utilization device, the isolating membrane comprises a porous base membrane and a porous coating located on at least one side of the porous base membrane, the porous coating comprises phenolic resin organic particles and a fibrous material, and at least part of the phenolic resin organic particles are positioned among the fibrous materials. The isolating membrane is used in the secondary battery monomer, so that the secondary battery monomer has high mass energy density and high reliability.

The present disclosure relates to a coating rod and a method for manufacturing a separator using the same. The coating rod according to the present disclosure can form a coating layer having regions of different thicknesses by one coating. In addition, the method for manufacturing a separator according to the present disclosure includes forming a porous coating layer using a predetermined coating rod to manufacture a separator including a porous coating layer having regions of different thicknesses. Specifically, the present disclosure manufactures a separator having a greater thickness at both ends than at the center, thereby avoiding insufficient adhesion strength at both ends in a lateral direction in adhesion between the separator and an electrode and exhibiting uniform adhesion strength across the entire interface between the separator and the electrode.

A separator for a lithium secondary battery, includes: a porous polymer substrate; and a porous coating layer formed on at least one surface of the porous polymer substrate, the porous coating layer including inorganic particles and a binder polymer. The inorganic particles include surface-modified calcium carbonate (CaCO3). The surface-modified calcium carbonate includes first surface-modified calcium carbonate, second surface-modified calcium carbonate, or a combination thereof. The first surface-modified calcium carbonate includes first calcium carbonate; and a fatty acid-derived functional group chemically bonded to a surface of the first calcium carbonate. The second surface-modified calcium carbonate includes second calcium carbonate; and an organosilane-derived functional group chemically bonded to a surface of the second calcium carbonate.

The invention provides a coating material with self-cleaning and low-reflectivity coatings and a preparation method of the coating material, and relates to the technical field of optical materials.The coating material comprises a base body, a first coating and a second coating, the first coating and the second coating are sequentially arranged on the surface of the base body, the first coating is an ammonia-treated silicon oxide layer, and the second coating is an ammonia-treated silicon oxide layer. The second coating is a fluorine-doped silicon oxide / titanium oxide porous coating; the thickness of the base body is 1-8 mm, the thickness of the first coating is 80-120 nm, and the thickness of the second coating is 100-200 nm. The coating material is high in transmittance, high in hardness, good in weather resistance, good in adhesive force and excellent in hydrophobicity, the preparation method is simple and low in energy consumption, and the prepared coating material is excellent in optical performance and mechanical performance.

The invention provides a satellite-free particle alloy powder preparation system and method, and relates to the technical field of material processing. The preparation system comprises an atomization tank body, a gas circulating cooling device and a product collecting device, the gas circulating cooling device comprises a circulating pipeline; two ends of the circulating pipeline in the length direction are respectively communicated with two oppositely arranged interfaces of the atomization tank body; the product collecting device comprises a cyclone separator; the cyclone separator is communicated with the atomization tank body; the atomization tank body, the circulating pipeline and the cyclone separator form a material circulation path; a porous coating is arranged on at least part of the inner wall area, capable of making contact with materials, in the material circulation path. According to the preparation system, a continuous material circulation path is constructed, the gas circulation device can improve the cooling efficiency and reduce inert gas consumption, the cyclone separator facilitates powder recovery, and the porous coating can improve the heat exchange efficiency and the cooling rate, so that non-solidified powder and solidified powder are prevented from adhering to form satellite particles.