110 results about "Microporous material" patented technology

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of lamellar symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and / or lamellar symmetry observable by microscopy.

The invention relates to a fiber with improved thermal insulation properties comprising a polymeric fiber base material and a microporous material in particle form, wherein the microporous material comprises an agglomerate of precipitated insoluble amorphous metal silicates, in particular precipitated silicon dioxide. The invention further includes a method for producing a fiber with improved thermal insulation properties.

The invention discloses a lead-acid storage battery electrolyte density measuring device, and belongs to the technical field of battery measurement, the lead-acid storage battery electrolyte density measuring device comprises a detection mechanism, the detection mechanism comprises a connecting column and a tuning fork mechanism, the tuning fork mechanism comprises a tuning fork base and a tuning fork sensor, and the tuning fork mechanism is sleeved with a double-layer isolation mechanism; the double-layer isolation mechanism comprises an inner cover mechanism and a microporous outer cover mechanism, a microporous material of the outer cover mechanism enables the electrolyte to penetrate through the outer cover mechanism and block bubbles, and the inner cover mechanism enables the electrolyte to turn and flow many times to make contact with the tuning fork sensor through an inner cover first channel and an outer cover second channel which are arranged in a staggered mode. The tuning fork mechanism is sleeved with the double-layer isolation mechanism, the outer cover mechanism adopts a microporous material to achieve electrolyte permeation and bubble blocking, the inner cover forces electrolyte to flow circuitously through the staggered channel design, the double structures cooperatively eliminate bubble attachment and inhibit turbulence interference, and it is ensured that frequency signals of the tuning fork sensor are stable; and the measurement precision and sensitivity are obviously improved.

The invention discloses a water taking and ferromanganese removal device based on a seepage collecting gallery, and belongs to the technical field of ferromanganese removal of seepage collecting galleries, the water taking and ferromanganese removal device comprises a seepage collecting gallery main body, an aeration assembly and a vibration piece, a gabion is installed on the upper surface of the seepage collecting gallery main body, the aeration assembly is installed inside the gabion, and the vibration piece is installed on the upper surface of the seepage collecting gallery main body. According to the manganese ore catalytic oxidation device, external gas enters the aeration ball through the air inlet cover, the connecting pipe and the aeration pipe, and the gas is extruded through a microporous material of a bubble film to form microbubbles, so that the content of dissolved oxygen in a water body is greatly increased, a sufficient oxygen source is provided for a manganese ore catalytic oxidation reaction, and the gas-liquid mass transfer effect is enhanced; meanwhile, the other part of gas enters the spherical shell and blows the vibration ball to drive the vibration rod to swing, the impact ball impacts the vibration piece through the connecting block and the connecting rod and then is transmitted to the aeration ball to enable the aeration ball to swing greatly, a water body generates turbulent flow, and the contact area and frequency of pollutants and manganese ore are increased.

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of hexagonal symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and / or hexagonal symmetry observable by microscopy.

The utility model discloses an air bearing structure which comprises a bearing seat, a bearing inner ring and a bearing outer ring, the bearing outer ring is assembled on the bearing seat, the bearing inner ring is assembled in the bearing outer ring, the bearing seat is provided with a first air hole used for conveying air, and the bearing outer ring is provided with a second air hole used for being matched with the first air hole. The bearing outer ring is provided with air passing grooves used in cooperation with the second air holes, and the bearing inner ring is made of a microporous material. Through the arrangement of the first air holes, the second air holes and the air passing grooves and the arrangement of the bearing inner ring made of the microporous material, the introduced high-pressure air can be more uniform and stable, so that an air film formed between an external shaft and the bearing inner ring is more uniform and stable, and the stability of the air bearing under high load and high rotating speed can be better realized.

The utility model is suitable for the technical field of electronic atomization equipment, and provides an atomization core and an atomizer, the atomization core comprises a base body and a heating element, the base body is made of a microporous material, the base body is provided with a first surface and a second surface which are opposite to each other, and a ventilation opening is formed in the first surface of the base body; the heating body is arranged on the second surface of the base body, the surface of the heating body is provided with a heating area, and the heating area surrounds the ventilation opening. According to the atomization core, in the atomization work process, air in the external environment can enter the base body through the ventilation opening and make full contact with the liquid substrate located in the heating area, combustion is more sufficient, dry burning is avoided, and therefore the service life of the atomization core can be relatively prolonged, and the atomization efficiency is improved. The taste of the aerosol before and after can be kept consistent, and the use experience of consumers is improved.

The invention belongs to the technical field of ion exchange membranes, and relates to a composite membrane with a high ion selective catalytic function and a preparation method thereof. The composite membrane has a three-layer structure, namely a high-ion-selectivity base membrane doped with a microporous material and catalytic functional composite layers doped with a positive electrode catalyst and a negative electrode catalyst on two sides of the base membrane. The preparation method comprises the following steps: firstly, dissolving perfluorinated sulfonic acid resin in an organic solvent, then dividing the obtained solution into three parts, and respectively adding a microporous material, a positive electrode catalyst and a negative electrode catalyst into the three parts for dispersion; after concentration treatment, a step-by-step tape casting mode is adopted to sequentially prepare a high-ion-selectivity base membrane, a positive electrode catalytic function composite layer and a negative electrode catalytic function composite layer, and finally, the three layers are compounded to form the high-ion-selectivity catalytic function composite membrane. The prepared composite membrane endows the flow battery diaphragm with a catalytic function; through fusion of the catalyst and the diaphragm resin, the problem of catalyst shedding is solved, and the conductivity and the ion barrier ability of the diaphragm are improved at the same time.

The invention relates to the field of noise reduction, in particular to a blower silencer, a blower silencing device and a noise reduction blower. The blower silencer comprises a hard cavity, a microporous medium filled in the hard cavity, and an airflow channel penetrating through a hard end face of the hard cavity and the interior of the microporous medium. An air outlet and an air inlet are respectively formed in two ends of the airflow channel; the Young modulus of the hard cavity is greater than 1MPa; the microporous medium is a microporous material or a component processed with micropores; the hard cavity, the microporous medium and the airflow channel form an assembly with a series of resonant frequencies, and within the spectral range of the resonant frequencies, acoustic wave impedance in the airflow channel is lower than air impedance, so that acoustic wave propagation is hindered. The hair dryer solves the problem that hearing may be damaged due to the fact that an existing hair dryer is too high in noise.

The invention relates to the technical field of filter materials, in particular to a mineral composite filter element and a preparation method and application thereof. The mineral composite filter element comprises the following raw materials in parts by weight: 1-50 parts of a hydrogen production material, 1-15 parts of a mineralization material, 5-10 parts of a microporous material, 1-10 parts of an antibacterial material, 5-50 parts of activated carbon and 5-60 parts of a thermoplastic polymer, the hydrogen production material is one or two of magnesium-based and silicon-based mineral hydrogen production material particles. Through the integrated structural design, multiple functions of filtration, mineralization, hydrogen production, antibiosis and the like are efficiently, stably and enduringly integrated, and the defects that in the prior art, a filter element is single in function, short in service life, unstable in efficiency, complex in system and the like are overcome.

The application provides a method for high-selectivity adsorption of extremely low concentration NH3 by using alcohol amine ionic liquid microporous materials, and belongs to the technical field of gas separation and purification. In the method, the ionic liquid microporous material uses a mesoporous material as a carrier, and is modified by a multi-site alcohol amine ionic liquid to form a novel ionic adsorption material with selective adsorption NH3 sites and microporous structure. Since the proton hydrogen on the cation of the alcohol amine ionic liquid can form a hydrogen bond with NH3, and the material has a micropore effect, the material can efficiently capture NH3, especially has high selectivity at extremely low NH3 concentration, and the adsorbed NH3 can be completely desorbed by heating or reducing pressure, and the adsorbent has good circulation after regeneration, and still has a high adsorption capacity after ten cycles, thereby providing a new way for efficient purification and separation of NH3.

This invention discloses a polyetheretherketone (PEEK) / aramid fiber composite microporous material and its molding method, belonging to the field of engineering plastics processing. The invention first modifies aramid fibers by amylation and prepares carboxylated PEEK. Covalent bonding between the amino and carboxyl groups is achieved through a chemical reaction, resulting in aramid fibers coated with PEEK. These fibers are then mixed with PEEK resin, a melt flow modifier, and additives to obtain a composite material. The composite material is then subjected to biaxial thermo-stretching orientation to improve its transverse / longitudinal orientation and crystallinity. Finally, the composite microporous material is obtained through supercritical CO2 microporous foaming. Because the foaming temperature is lower than the thermo-stretching orientation temperature, the biaxial orientation structure of the composite material is well preserved, and the well-dispersed aramid fibers effectively improve the cell wall strength, inhibit cell growth and merging, significantly increase cell density, and drastically reduce cell size, thereby constructing a high-strength, heat-insulating PEEK composite microporous material.

Methods for synthesis of hierarchically ordered zeolites and zeolite-type materials are provided. Synthesized hierarchically ordered zeolites and zeolite-type materials formed according to the methods herein possess a high-degree of well-defined long-range mesoporous ordering. The methods include base-mediated reassembly, by dissolution of the parent material to the level of oligomeric structural building units of the parent material, and minimizing or avoiding amorphization / structural collapse. The dissolution and self-assembly is comprehensively controlled to produce hierarchically ordered zeolites and zeolite-type materials according to the methods herein.

The invention relates to the technical field of ammonium dinitramide preparation methods, in particular to an ammonium dinitramide coating material and a preparation method and application thereof.The preparation method comprises the following steps that under the protective atmosphere, an acetic acid solution, trialdehyde phloroglucinol, ammonium dinitramide and an amino compound are mixed and subjected to a Schiff base reaction, and an intermediate material is obtained; and depositing a fluorocarbon on the surface of the intermediate material to prepare the ammonium dinitramide coated material. According to the invention, trialdehyde phloroglucinol reacts with an amino compound to generate an interlinked interlayer microporous material (COFs framework material), and the interlinked interlayer microporous material has good compatibility with strong-polarity ammonium dinitramide and a non-polar fluorocarbon compound, so that transition of ammonium dinitramide (strong-polarity)-microporous material (moderate-polarity)-fluorocarbon (non-polarity) is formed; the abrupt change of interfacial tension when the surface of ammonium dinitramide is directly coated with the fluorocarbon is relieved.

The invention provides a PVDF (Polyvinylidene Fluoride) microporous material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out heat preservation treatment on PVDF powder for a period of time at the temperature of more than or equal to 100 DEG C to obtain a microporous material with a stable shape, namely PVDFamp; the invention relates to an inorganic hybrid microporous material. The preparation method of the material is simple, the thickness can be effectively increased, then the PVDF microporous material meeting large-capacity adsorption is obtained, the PVDF microporous material has the advantages of being improved in temperature resistance, solvent resistance and the like, and when the material serves as a filtering material or a loading material, the temperature resistance, the solvent resistance and the filtering efficiency are excellent.

A method for synthesizing hierarchical ordered zeolites and zeolite-type materials is provided. The synthesized hierarchical ordered zeolites and zeolite-type materials formed by the methods herein possess a high degree of defined long-range mesoporous order. The method includes base-mediated reassembly by decomposition of the parent material to the level of the oligomeric structural building units of the parent material and minimization or avoidance of amorphization / structural collapse. The decomposition and self-assembly are comprehensively controlled to produce hierarchical ordered zeolites and zeolite-type materials by the methods herein.

The present invention belongs to the field of metal organic framework materials, and specifically relates to a microporous material SDMOF-1, a preparation method thereof, and an application thereof. According to the difference in the sizes of C2H2 and C2H4 molecules, a microporous MOFs with a suitable size is designed to capture C2H2 molecules, thereby achieving the purpose of separating a mixture of C2H2 and C2H4 and purifying C2H4. The present invention selects H2bodc and bpy ligands and copper nitrate to construct a microporous material SDMOF-1 with a pore size of #imgabs0#. The Cu2(COO)4 paddle wheel secondary building unit is connected to four H2bodc ligands to form a twisted lattice-shaped two-dimensional layer. The bpy ligand coordinates with copper along the c-axis direction and supports each layer to form a complete three-dimensional structure. The pore size of the framework is very compatible with the size of the C2H2 molecule, but cannot accommodate the C2H4 molecule, thereby achieving a molecular sieving effect.

Methods of making hierarchically ordered crystalline microporous materials are provided. The method may include forming an aqueous suspension comprising a parent crystalline microporous material, an alkaline reagent, a supramolecular template, and a silica source material, an alumina source material, or both. The method may further include hydrothermally treating the aqueous suspension to form the hierarchically ordered crystalline microporous material. The hierarchically ordered crystalline material may have a greater degree of mesoporosity than the parent crystalline microporous material and may have a silica-to-alumina ratio (SAR) that is at least 0.5 different than the parent crystalline microporous material.

The utility model relates to the field of breathable tiles, in particular to a two-way clamped breathable tile. According to the technical scheme, an upper-end rack is arranged on an upper-end connecting strip, a lower-end connecting strip is arranged on the other side of a plate-shaped breathable tile body, a lower-end rack is arranged on the lower-end connecting strip, open holes are formed in the upper-end connecting strip and the lower-end connecting strip, the upper-end rack is connected with a strip-shaped lower-end breathable tile body in a wedge-shaped mode, and the lower-end rack is connected with a strip-shaped upper-end breathable tile body in a wedge-shaped mode. The plate-shaped breathable tile body is arranged to provide a covering main body, the reinforcing supporting strips are arranged in the hollow protruding blocks to enhance the reinforcing and supporting effects, the anti-collision protection layer performs anti-collision buffering protection work, and the waterproof protection layer performs waterproof protection. The upper end rack is fixed by the upper end connecting strip, the lower end rack is fixed by the lower end connecting strip, wedge-shaped connection can be carried out, bidirectional clamping connection can be realized, the strip-shaped upper end breathable tile body and the strip-shaped lower end breathable tile body can be independently connected, and the whole structure is prepared by adopting a microporous material based on a foaming process.

The present application relates to a kind of water-soluble polyolefin dissolving agent, polyolefin microporous material and its preparation method, wherein, by mass fraction, the water-soluble polyolefin dissolving agent includes 20%~60% main porogen, 5%~30% auxiliary porogen, 20% or less compatibility regulator and the balance of water, the main porogen is selected from at least one of water-soluble polyether amine, water-soluble polyether ester, the auxiliary porogen is selected from onium salt type ionic liquid, the compatibility regulator is selected from amphiphilic substance.The water-soluble polyolefin dissolving agent of the present application can completely replace white oil / space oil as porogen, replace dichloromethane with water to extract, eliminate the safety, environmental protection and residual problems caused by organic solvent, simultaneously, by regulating the composition of water-soluble polyolefin dissolving agent and extraction condition can realize the controllable adjustment of microporous structure, and the water-soluble solution containing dissolving agent obtained by extraction can be concentrated, distilled and recycled and closed loop utilization.

The application discloses a kind of hexafluorosilicic acid anion functionalized microporous material and its preparation method and application in adsorption separation olefin / alkane.The microporous material is by metal ion Zn 2+ , inorganic anion SiF6 2‑ And azole organic ligand L are formed by the coordination of static solvothermal reaction polymer, the microporous material with the separation property can only be synthesized using static solvothermal reaction method.The microporous material has high density of anion and azole site, and the structure properties of the material can be controlled by adjusting the solvent type of the reaction, the feeding ratio of anion and azole organic ligand and the type of azole organic ligand.The microporous material obtained by the application can realize the separation of olefin / alkane based on size and electronic effect.

The invention discloses a high-magnification silicon-carbon material and a preparation method thereof, and the high-magnification silicon-carbon material is prepared by the following method: (1) alloying a silicon material and metal lithium to obtain a silicon-lithium alloy; (2) treating the silicon-lithium alloy by using an alcohol solvent to obtain a silicon microporous material; and (3) introducing high-temperature carbon source gas into the silicon microporous material to fill micropores in the silicon microporous material. The silicon-carbon material with the three-dimensional honeycomb-shaped silicon and carbon mosaic structure is prepared through a unique process, in the silicon-carbon material, silicon is of a nanometer layered stacked structure, isotropic channels are formed in the silicon-carbon material and on the surface of the silicon, and a balanced lithium ion transmission path is formed by utilizing carbon filled in the channels; and the high-rate performance of the silicon-carbon material is effectively improved.

The utility model relates to an eye massage instrument which comprises an outer eyeshade made of at least one layer of leather material, the outer eyeshade is bent in an arc shape, a groove is formed in the concave face of the outer eyeshade, and a plurality of installation grooves and wire grooves communicated with every two adjacent installation grooves are formed in the groove; the control circuit board is arranged in one of the mounting grooves; the flexible heating sheet is adhered and attached in the groove and is electrically connected with the control circuit board; the inner eyeshade is made of a flexible microporous material, and the inner eyeshade is connected with the concave surface of the outer eyeshade.

Methods of making hierarchically ordered crystalline microporous materials are provided. The method may include forming an aqueous suspension comprising a parent crystalline microporous material, an alkaline reagent, a supramolecular template, and a silica source material, an alumina source material, or both. The method may further include hydrothermally treating the aqueous suspension to form the hierarchically ordered crystalline microporous material. The hierarchically ordered crystalline material may have a greater degree of mesoporosity than the parent crystalline microporous material and may have a silica-to-alumina ratio (SAR) that is at least 0.5 different than the parent crystalline microporous material.

The utility model discloses a device for producing a breathable bottom membrane with nanoscale micropores, and particularly relates to the field of quilt cushion or quilt bottom membrane production equipment.The device comprises a shell, a solution box, a supporting plate, an electric telescopic rod and a lifting plate, the solution box is installed on the side end face of the shell, and the supporting plate is arranged on the bottom face of an inner cavity of the shell; an electric telescopic rod is arranged on the upper end face of the supporting plate, a lifting plate is arranged at the telescopic end of the electric telescopic rod, a placing plate is arranged on the upper end face of the lifting plate, a moving assembly is arranged on the upper end face of the lifting plate, and a microdroplet assembly is arranged at the moving end of the moving assembly. A solution for eroding a bottom membrane is poured into the solution box, the bottom membrane is placed on the upper end face of a placing plate, the height of the placing plate is adjusted through an electric telescopic rod, the position of the placing plate is adjusted through a moving assembly, and a micro-droplet assembly is used for generating nanoscale solution water drops to erode the bottom membrane, so that nanoscale micropores are generated in the bottom membrane; finally, the nano-scale microporous breathable quilt cushion bottom film which can keep breathability and effectively prevent moisture is obtained.

A composition of matter is provided comprising hierarchically ordered crystalline microporous material having well-defined long-range mesoporous ordering of cubic symmetry. The composition possesses mesopores having walls of crystalline microporous material and a mass of mesostructure between mesopores of crystalline microporous material. Long-range ordering is defined by presence of secondary peaks in an X-ray diffraction (XRD) pattern and / or cubic symmetry observable by microscopy.

The invention discloses a multifunctional PTFE membrane capable of adsorbing carbon dioxide gas as well as a preparation method and application of the multifunctional PTFE membrane, and belongs to the technical field of PTFE membranes. The invention discloses a preparation method. The preparation method comprises the following steps: mixing 3, 3, 5, 5-tetramethyl-1H, 1H-4, 4-bipyrazole with NiSiF6. 6H2O, reacting under the catalysis of Pd to obtain SiFSiX-18-Ni-alpha, and then heating the SiFSiX-18-Ni-alpha in vacuum to obtain an ultra-microporous material; the preparation method comprises the following steps: uniformly mixing PTFE resin, an extrusion aid, a cross-linking agent and an ultra-microporous material, standing in a drying room, and then pre-pressing and calendering to obtain a PTFE blank film; degreasing and longitudinally stretching the PTFE blank film to obtain a blank film sample material; placing the blank film sample material in a drying room for standing, and then transversely stretching to obtain the PTFE film. Wherein the ultra-microporous material has strong adsorption capacity on gaseous carbon dioxide, and the adsorption capacity of CO2 cannot be influenced by a humid environment.

The invention relates to an adsorption material, in particular to a microporous Ni-MOF adsorption material and a preparation method and application thereof. The microporous Ni-MOF material provided by the invention has remarkable advantages in structural stability and aperture matching, and is just matched with the kinetic diameters of hexane isomers and benzene / cyclohexane molecules, so that the microporous Ni-MOF material can realize an efficient molecular sieving effect. Especially, the selective recognition of straight-chain / single-branched-chain and double-branched-chain hexane realizes the'complete cutting 'capability which cannot be achieved by the existing adsorbent.

This invention relates to a plasma generator based on a dense microporous material catalysis, belonging to the field of low-temperature plasma technology. The plasma generator contains at least one discharge unit, which includes a first electrode, a microporous ceramic medium, and a second electrode. The first electrode is used to connect to a power source, and the second electrode is used for grounding. The microporous ceramic medium is used to adsorb gas molecules and active particles generated by the plasma discharge. This invention generates micro-discharge in a dense microporous medium, which has an extremely high specific surface area. When gas passes through, it is adsorbed onto the surface of the micropores in the medium. Similarly, active substances in the plasma are adsorbed onto the surface of the micropores in the medium. This improves the contact efficiency between short-lived, highly active particles and free radicals in the plasma and the reactants, promotes surface catalytic reactions, and improves the overall efficiency of the device.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a composite material, a preparation method thereof and a nitrogenous wastewater treatment agent. The composite material comprises a microporous material and modified nanoscale zero-valent iron loaded on the microporous material, the modified nanoscale zero-valent iron comprises a core material and a shell material wrapping the core material, the shell material comprises a tea polyphenol extract and ferrous sulfide, and the core material comprises nanoscale zero-valent iron. The zeolite and other microporous materials are used as loading materials, NZVI is vulcanized, the zeolite-loaded vulcanized NZVI composite material (TP-Ze-NZVI / S, namely the composite material) is successfully synthesized, the zeolite and other microporous materials have large specific surface area and high adsorption capacity, loading modification based on the zeolite and other microporous materials can improve aggregation of NZVI, and the adsorption capacity of NZVI is improved. And the NZVI vulcanization modification performance significantly improves the electron transfer efficiency of the NZVI and prolongs the service life of the NZVI, thereby improving the treatment effect on the nitrogen-containing wastewater.