77 results about "Porous sheet" patented technology

Sorbent materials for the adsorption of hydrocarbons and methods for manufacturing them are described. The sorbents include a slurry of activated carbon and a porous sheet layer permeable to hydrocarbons configured to remove emissions from air intakes. The methods for manufacturing the sorbent materials include providing both a hydrocarbon permeable layer and a slurry that includes the sorbent material, drying the slurry, and affixing the dried slurry layer to the surface of the hydrocarbon permeable layer.

This provides an improved dissolvable solid article with a specific aspect ratio. Such dissolvable solid article has a multilayer structure comprising two or more flexible, dissolvable, porous sheets, while each of which comprises a water-soluble polymer and a surfactant and is characterized by a Percent Open Cell Content of from 80% to 100% and an Overall Average Pore Size of from 100 μm to 2000 μm. The multilayer dissolvable solid article is characterized by a maximum dimension D and a minimum dimension z; and wherein the ratio of D / z ranges from 1 to 10.

The application discloses a zinc extraction process from secondary zinc oxide, and belongs to the technical field of zinc oxide preparation. In the rotary kiln roasting, composite porous flaky reducing carbon with waste paper, rice husk and wooden chips as main raw materials is used as a reducing agent. Compared with the commercially available anthracite, the composite porous flaky reducing carbon has low cost, realizes resource recycling, and has a large specific surface area and porous properties. A multi-level structure of flaky layers and pores is constructed, so that the contact sites of the composite porous flaky reducing carbon and the secondary zinc oxide are increased. The porous structure can avoid the caking of the material layer caused by the stacking and agglomeration of the flaky layers, and avoid the obstruction of gas flow, so that the pain points of the traditional reducing agent, such as local agglomeration and insufficient contact, are solved. The surface of the composite porous flaky reducing carbon is deposited with calcium oxide. The presence of the calcium oxide can react with a small amount of sulfur elements generated in the rotary kiln roasting process of the composite porous flaky reducing carbon, so as to generate calcium sulfate and reduce the content of sulfur dioxide.

The disclosure provides a metal ion doped lithium iron phosphate material and a preparation method and application thereof, and relates to the technical field of lithium batteries. The metal ion doped lithium iron phosphate material comprises flaky lithium iron phosphate and metal ions doped on the flaky lithium iron phosphate, and the flaky lithium iron phosphate has a porous structure. The method comprises the following steps: using an organic metal compound as a deposition raw material to deposit a carbon layer and metal oxide particles on the surface of a porous Fe2O3 flaky precursor to obtain a composite material; mixing the composite material, a lithium source and a phosphorus source according to a stoichiometric ratio, and then drying and sintering to obtain an M-LiFePO4 material. The M-LiFePO4 prepared by the disclosure has good uniformity and is not prone to agglomeration, inherits the two-dimensional flaky morphology of the precursor material and has a porous structure, has good rapid charging and discharging capacity, and improves the rate performance of the lithium iron phosphate material through doping of metal ions.

The application relates to a flow field for use in an electrolytic cell comprising one or more porous sheets having a corrugated structure. The electrolytic cell comprises a membrane, an anode, a cathode, an anode reinforcement layer, a cathode reinforcement layer, an anode flow field, a cathode flow field, and a bipolar plate assembly comprising an embedded hydrogen seal. The anode flow field includes one or more porous sheets having at least one straight edge, and wherein at least one of the porous sheets has the form of a corrugated pattern having a plurality of peaks and valleys whose axes are substantially aligned with one straight edge of the sheet. The anode flow field geometry simultaneously provides elasticity for efficient mechanical compression of the cell and well distributed mechanical support for anode reinforcement layers adjacent the anode flow field.

In specific embodiments, provided is a material for preventing adhesion of membranes in an ophthalmic surgery for treatment of glaucoma or the like without using mitomycin-C or the like. Particularly provided is such material, which is easy to handle and has no risk of histolysis or infections. In a production method of a preferred embodiment, prepared are: aldehyde-modified dextran (first reactant) having weight-average molecular weight of 10,000-5,000,000 and introduced aldehyde group-per-anhydrous glucose unit (mol / AGU) of 0.4-0.7; and succinic anhydride-added poly-L-lysine (second reactant) having weight-average molecular weight of 1000-100,000 and having residual amino group ratio of 80-99%; then, they are mixed together so that aldehyde group-to-amino group molar ratio becomes 0.9-1.1 and are reacted in presence of water so that polymer concentration becomes 8-20%; and a hydrogel produced by the reaction, or a suspension before gelation, is freeze-dried to produce a porous sheet having a thickness of 0.1-0.8 mm.

In specific embodiments, provided is a material for preventing adhesion of membranes in an ophthalmic surgery for treatment of glaucoma or the like without using mitomycin-C or the like. Particularly provided is such material, which is easy to handle and has no risk of histolysis or infections. In a production method of a preferred embodiment, prepared are: aldehyde-modified dextran (first reactant) having weight-average molecular weight of 10,000-5,000,000 and introduced aldehyde group-per-anhydrous glucose unit (mol / AGU) of 0.4-0.7; and succinic anhydride-added poly-L-lysine (second reactant) having weight-average molecular weight of 1000-100,000 and having residual amino group ratio of 80-99%; then, they are mixed together so that aldehyde group-to-amino group molar ratio becomes 0.9-1.1 and are reacted in presence of water so that polymer concentration becomes 8-20%; and a hydrogel produced by the reaction, or a suspension before gelation, is freeze-dried to produce a porous sheet having a thickness of 0.1-0.8 mm.

The present invention relates to an aerosol cooling material for cigarettes, which comprises a metal having a thermal conductivity of 10 W / m.K to 5000 W / m.K and is made of a porous foam or a porous sheet.

A tool for mutually stacking and assembling porous sheet-shaped workpieces comprises a base, the base is further provided with a bottom plate, and a plurality of positioning holes which are formed at intervals are formed in the bottom plate; the linear bearing is fixedly arranged on the lower side of the bottom plate; the number of the guide rods corresponds to that of the linear bearings, one ends of the guide rods are arranged in the linear bearings in a penetrating mode through the positioning holes, and the other ends of the guide rods extend upwards along the bottom plate; according to the assembly tool provided by the embodiment of the utility model, a plurality of sheet-shaped workpieces with multiple holes can be stacked and assembled, and the coaxial precision of hole sites on the plurality of stacked workpieces can be ensured through the arrangement of the plurality of guide rods; in the process of stacking the workpieces through the tool, the efficiency of assembling and machining the workpieces can be improved.

Provided is a porous sheet having high biocompatibility and adhesive strength, and further having pliability and / or flexibility.　The porous sheet includes: a second gelatin having a hydrocarbon group introduced into a first gelatin; and an unreacted crosslinking agent dispersed in the second gelatin. The second gelatin includes a structure represented by formula (1).

Disclosed is a secondary battery. According to the present disclosure, the secondary battery includes a case, an electrode assembly disposed inside the case, a porous sheet disposed between the case and the electrode assembly and configured to temporarily accommodate an electrolyte inside the case or discharge the accommodated electrolyte, and a diffusion guide disposed on the porous sheet and configured to guide the electrolyte discharged from the porous sheet to flow inside the case.

The invention discloses a preparation method of a supported high-entropy metal oxide catalyst for photo-thermal methanol-water reforming hydrogen production. The preparation method is specifically implemented according to the following steps: step 1, preparing CeO2 gel; step 2, grinding the CeO2 gel obtained in the step 1 serving as a raw material to obtain CeO2 gel powder, and calcining the CeO2 gel powder to obtain a porous sheet CeO2 oxide; step 3, loading a plurality of metal ions on the porous sheet CeO2 oxide obtained in the step 2 to prepare multi-metal loaded CeO2 powder; and 4, calcining the multi-metal loaded CeO2 powder obtained in the step 3, and grinding to obtain the loaded high-entropy metal oxide catalyst. The problems of slow reaction kinetics, long activation time and low hydrogen production efficiency of the existing low-temperature methanol-water reforming hydrogen production catalyst in a temperature interval of lower than 150 DEG C are solved.

Provided is an apparatus for producing a slurry-impregnated sheet constituted of a fiber sheet or a porous sheet impregnated with a slurry prepared by dispersing particles in a solvent. The apparatus includes: a conveying device configured to convey the fiber sheet or the porous sheet; a coating device configured to meter and apply the slurry to the fiber sheet or the porous sheet; and an impregnation device disposed downstream of the coating device in a sheet conveying direction and configured to apply an external force to the fiber sheet or the porous sheet to impregnate the fiber sheet or the porous sheet with the particles. The coating device includes a die.

The utility model belongs to the technical field of membrane electrode testing, and particularly relates to a membrane electrode partition testing device. According to the technical scheme, the membrane electrode partition testing device comprises a testing table base and an external power source, a lower porous sheet-shaped material is fixed to the testing table base, a membrane electrode to be tested is arranged on the lower porous sheet-shaped material, a three-axis moving device is installed on the testing table base, and the three-axis moving device is connected with the external power source. The Z-axis end of the three-axis moving device is sequentially connected with a pressure control sensor, an elastic insulating plate, an electrode structure and an upper porous sheet material in a superposed manner from top to bottom, and the electrode structure is connected with a raw material water filling nozzle; the test board base is provided with an electrode interface, and the electrode structure and the electrode interface are electrically connected with an external power supply. The utility model provides a partition testing device for a membrane electrode, which can accurately and fully evaluate the electrochemical performance and distribution characteristics of the membrane electrode under the condition that the membrane electrode is not cut and damaged.

The invention relates to the technical field of amphibious automobiles, and discloses an amphibious automobile trim panel mounting structure and an amphibious automobile. The amphibious automobile trim panel mounting structure comprises an automobile door lower trim panel and an automobile door outer panel metal plate; the automobile door outer plate metal plate is of a hole-free metal plate structure, an upper welding support and a lower welding support are welded to the automobile door outer plate metal plate, a buckle piece and an installation hole are formed in the corresponding positions of the automobile door lower decoration plate respectively, and the buckle piece on the automobile door lower decoration plate is connected to the upper welding support in a clamped mode in the Y direction. The position of the mounting hole corresponds to the position of the lower welding support, the axis direction of the mounting hole is the Z direction, and the fixing piece penetrates through the mounting hole and a Z-direction through hole in the lower welding support in the Z direction, so that the vehicle door lower decoration plate and the vehicle door outer plate metal plate are fixed; the automobile door outer plate metal plate does not need to be perforated in the whole process, a water seepage channel can be completely eradicated from the source, the sealing ring at the upper waterproof buckle position and the lower waterproof gasket can form radial and axial double sealing, the requirement for 2 m water depth and long-term wading of an amphibious automobile is met, and electrical components in an automobile body are effectively protected.

Provided is an inter-cell structure which is suitable for maintaining a buffer function for relaxing stress from a lithium ion battery cell with high durability while achieving a size that is suited to the cell. Provided is an inter-cell structure for use in a battery module or a battery pack including a plurality of arrayed lithium ion battery cells, the inter-cell structure being disposed between adjacent cells among the plurality of cells. The inter-cell structure has: a bag body that defines a sealed space; and a fluid such as a gas and a porous sheet in the sealed space. The bag body is formed of a laminated film including a metal layer and a resin layer, and has a sealing end part in which the innermost layers of first and second film parts of the laminated film are joined to each other so as to seal the sealed space. The porous sheet is positioned at a distance from the sealing end part of the bag body. The bag body has, between the sealing end part and the porous sheet, a folded part in which the first and second film parts overlap with each other and are folded with the first film part being on the inner side.

The invention belongs to the technical field of air purification, and particularly relates to an activated carbon adsorbent with ultra-high molecular weight polyethylene fibers as a framework and a preparation method of the activated carbon adsorbent. The activated carbon adsorbent is of a porous sheet structure and comprises 85-95 wt% of activated carbon powder, 1-10 wt% of a polymer and 0.2-3.0 wt% of an auxiliary agent, wherein the polymer is ultra-high molecular weight polyethylene or a mixture of ultra-high molecular weight polyethylene and high-density polyethylene; the polymer presents a cross network skeleton structure in a fibrous form, and the active carbon powder and the auxiliary agent are attached to the polymer fiber. The activated carbon adsorbent has the advantages of extremely low dust capacity in the use process, high content of effective components, small bed resistance, high harmful gas adsorption rate and the like.

To provide a sheet with improved porous structure formation capabilities compared to conventional sheets. [Solution] A porous sheet containing a thermoplastic resin, inorganic particles, and silicone oil, having numerous pores. The porous sheet contains 30% by mass or more of inorganic particles, and the silicone oil and inorganic particles contained in the porous sheet satisfy a predetermined relationship. Preferably, the porous sheet has a plurality of stem fibers extending in one direction and fibril fibers extending between the stem fibers and having a smaller diameter than the stem fibers. Preferably, the plurality of stem fibers include one stem fiber and other stem fibers branched from that stem fiber, and also have voids between the stem fibers.

This invention discloses an automatic sheet metal flipping device for edge-folding units, involving a machining technology solution. It includes a movable conveyor roller, a roller base frame, a movable flipping suction cup gripper, and a flipping base frame. The device integrates feeding, centering, flipping, and conveying functions. Precise positioning is achieved through a servo-driven centering and alignment device. The movable flipping suction cup gripper can complete 180° flipping in both directions. Individual suction cup components are adjustable and adaptable to large-format, heavy-duty, irregularly shaped, and porous sheets. Servo control and synchronous belt drive ensure smooth operation and precise positioning. The frame is fixed with detachable bolts, and the bottom leveling feet adapt to different sites. It supports parallel operation and single-piece operation, and can be seamlessly integrated into existing automated production lines, effectively improving production efficiency and reducing scrap rates.

To provide a porous sheet that is excellent in performance as a separator for an electrochemical element, in that it is thin but does not cause short circuits. The porous sheet is made of fibers and has a thickness of 4.8 to 30.0 μm, an air resistance of 1 to 1000 seconds / 100 ml, and a valley area of ​​1.0 to 38.0 mm as measured using a three-dimensional white light interference microscope (manufactured by BRUKER). 2 The present invention also provides an electrochemical element including this porous sheet as a separator for the electrochemical element.

The invention belongs to the technical field of composite nano materials, and particularly relates to a two-dimensional transition metal titanium carbide-platinum nano particle composite material and a preparation method and application thereof. The invention relates to a two-dimensional transition metal titanium carbide-platinum nanoparticle composite material. The two-dimensional transition metal titanium carbide-platinum nanoparticle composite material comprises a single layer of Ti < 3 > C < 2 > T < x > and platinum nanoparticles loaded on the single layer of Ti < 3 > C < 2 > T < x >, the single-layer Ti < 3 > C < 2 > T < x > is of a porous sheet-shaped structure, and the size is 0.5-5 [mu] m. The platinum nanoparticles in the obtained two-dimensional transition metal titanium carbide-platinum nanoparticle composite material can be uniformly loaded on the surface of the two-dimensional transition metal titanium carbide and are not easy to agglomerate; the two-dimensional transition metal titanium carbide-platinum nanoparticle composite material has anti-interference performance and long-term stability in biomolecule detection.

The invention provides a conveying device and a conveying method for conveying workpieces in a state of suppressing reduction of quality of the workpieces. A transport device (1) for transporting a single workpiece having, as an adsorption surface, a porous sheet provided on the outermost surface, the transport device being provided with: an input unit (11) for setting an adsorption condition in which an adsorption pad (32) is adsorbed to the workpiece before transport of the workpiece; and a calculation unit (12) that determines whether or not a sag amount greater than a predetermined amount is generated in the workpiece when the adsorption pad (32) is adsorbed to the workpiece and lifted in accordance with the adsorption condition, determines that the workpiece is to be conveyed if the sag amount is equal to or less than the predetermined amount, and determines that the workpiece is not to be conveyed if the sag amount is greater than the predetermined amount.

The present invention relates to a mold, in particular to a mold for powder extrusion molding, and specifically to a porous tablet stamping mold, which includes a turntable. At three positions, namely the upper, middle, and lower positions on the turntable, a set of upper punch dies, forming cavities, and lower punch dies that correspond to each other in position are circumferentially and evenly distributed along the rotation center. The upper punch die includes an upper punch head, and the lower punch die includes a lower punch head. Each time the turntable rotates one week, each upper punch die and lower punch die complete a reciprocating lifting motion. The upper punch die further includes a discharging rod, and the lower punch die further includes a punching rod that is fixed on the turntable and is movably arranged in the lower punch head. The discharging rod can move within the upper punch head, so as to make way for the punching rod during extrusion molding and can also push the powder in the upper punch head out for discharging. With the mold having the above structure, the discharging rod can discharge the excess powder in the upper punch head, avoid the accumulation of powder from blocking the punching rod, and protect the safety and reliability of the punching rod during operation.

The invention relates to the technical field of desulfurization wastewater treatment, in particular to a method for utilizing desulfurization wastewater in a thermal power plant, which comprises the following steps: cleaning a waste polyethylene plastic bottle to obtain a cleaning solution and the cleaned polyethylene plastic bottle; carrying out hot melting, extrusion and cooling on the cleaned polyethylene plastic bottle to prepare a porous sheet; placing the porous sheet under ultraviolet light for irradiation to obtain a polyethylene pulverization sheet; adding the cleaning solution into the desulfurization wastewater for solarization until green algae are generated, so as to obtain the desulfurization wastewater containing the green algae; and putting the polyethylene pulverization sheet into the green alga-containing desulfurization wastewater, continuously solarizing until the polyethylene pulverization sheet is degraded, filtering a mixed solution obtained after degradation, and absorbing by using a potted plant. According to the method disclosed by the invention, desulfurization wastewater treatment is taken as a target, a Cl <-> migration path is directionally guided, so that the Cl <-> is converted into a process resource from an end pollutant, harmless degradation of the polyethylene plastic bottle of the thermal power plant can be realized, and comprehensive utilization of the desulfurization wastewater is realized.

A ballistic sound reducing panel is disclosed comprising a frame with a front porous sheet disposed in the frame for enabling sound to enter into the sound reducing panel. A sound absorbing member dissipates sound entering into the front porous sheet. A ballistic plate is located within the frame for inhibiting penetration of ballistic projectiles and shrapnel. A ricochet plate is framed about the ballistic plate for arresting ricocheting ballistic projectiles and shrapnel. A fragmentation containment layer adjacent to the ballistic plate inhibits high energy fragmentations leaving the surface of the ballistic plate. A spall reducing membrane overlays the fragmentation containment layer for encapsulating ricocheting fragments from the ballistic plate. A rear sheet disposed in the frame.

A metal-ion-doped lithium iron phosphate material, a preparation method therefor, and a use thereof, relating to the technical field of lithium batteries. The metal-ion-doped lithium iron phosphate material comprises a lithium iron phosphate sheet and metal ions loaded on and doped in the lithium iron phosphate sheet, and the lithium iron phosphate sheet has a porous structure. The method comprises: using an organic metal compound as a deposition raw material, and depositing a carbon layer and metal oxide particles on a surface of a porous Fe2O3 sheet precursor to obtain a composite material; and mixing the composite material, a lithium source, and a phosphorus source according to a stoichiometric ratio, and then drying and sintering to obtain an M-LiFePO4 material. The prepared M-LiFePO4 has good uniformity, is not prone to agglomeration, inherits the two-dimensional sheet-like morphology of the precursor material, has a porous structure, has good capability for rapid charging and discharging, and improves the rate performance of a lithium iron phosphate material by means of doping same with metal ions.

Geopolymer sheets can be formed by applying a geopolymer composition on a sheet. In some aspects, the sheet can be a porous sheet or non-porous sheet. The geopolymer composition can be prepared from an aqueous formulation of one or more metal silicates, one or more metal oxides, one or more water-soluble caustic agents, and water. In some implementations, the geopolymer composition can be free of, or substantially free of, large solid particles comprised of the metal silicate, metal oxide and water-soluble caustic agent. Such geopolymer sheets can be readily applied to an underlying substrate to transfer a geopolymer thereon and improve the fire resistance of the underlying substrate.

This present invention provides dissolvable solid articles comprising multiple layers of flexible, dissolvable, porous sheets, in which a coating composition is present on at least one internal surface of at least one sheet in said solid articles. The present invention also provides a process for making such solid articles.

A vacuum pressing apparatus (100) comprising at least:-a support (102) having a first element (104) and a cover (106) movable relative to the first element (104); at least one vacuum source (110) comprising a control unit (114) for actuating the at least one vacuum source and connected to the at least one vacuum port (108) of the support (102); and a vacuum dispensing pad (120) comprising at least: a first porous anti-adhesion sheet (2001) disposed on top of the first element (104) and covering the at least one vacuum port (108); a stack of breathable mesh layers (204) disposed on top of the first porous sheet (2001); and a second porous anti-adhesion sheet (2002) disposed on top of the stack (204) of breathable mesh layers, said second sheet (2002) being connected to the first sheet (2001), said second sheet and said cover being adapted to sandwich the product (1) to be compacted therebetween.

A tubular shaped tampon can include an absorbent body defining a cylindrical shape having a hollow interior, a porous protective sleeve surrounding the absorbent body, and a string that holds the protective sleeve in place against the absorbent body and facilitates removal of the tampon after use. The absorbent body and protective sleeve can combine to define an overall tubular structure having an inner hollow region, providing increased surface area. Methods of manufacturing the tampon can include cutting a fluid absorbent material, rolling the cut material around elongated machine prongs to form an absorbent body, rolling a porous sheet around and extending beyond both distal ends of the absorbent body, pinching together distal ends of the porous sheet, pushing at least one distal end through the hollow interior of the absorbent body, stitching the distal ends of the porous sheet together, and punching a string through the protective sleeve and absorbent body.