345 results about "Porous particle" patented technology

One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduced in the volume section V3 to obtain a first intermediate mixture. The first intermediate mixture comprises a first intermediate product and the further organic compound. First particulated material is added to the first intermediate mixture in a volume section V4. A filtering means is pre-coated with the first particulated material. At least one impurity is at least partially removed from the first intermediate mixture using the filtering means. The first particulated material has a median pore diameter in the range of 5 mm to 20 mm.

The invention discloses a method for determining the critical safety diameter of an emulsion drop of a liquid energetic material synthesis reaction conveying pipeline, which comprises the following steps of: curing and heating a sampled emulsion, determining pyrolysis kinetic parameters of the detected emulsion, constructing a heat production and heat transfer heat insulation system model of a mixed solution of an acid ester emulsion and the emulsion drop by utilizing Comsol, and determining the critical safety diameter of the emulsion drop of the liquid energetic material synthesis reaction conveying pipeline. Calculating a temperature rise change rule of the mixed liquid heat insulation system under different emulsion droplet sizes, determining a function relationship between the emulsion droplet particle size and the temperature rise of the mixed liquid heat insulation system, and deriving to obtain the critical safety diameter of the emulsion droplet; the method comprises the following steps: adsorbing emulsified liquid by using a porous particle material, testing whether the emulsified liquid explodes due to collision and friction of emulsified liquid with different pore diameters at different rates in an impact tank-piston device to obtain the relationship among the movement rate of emulsified liquid drops, the particle size of the emulsified liquid drops and the explosion risk, and determining the explosion risk of the emulsified liquid drops under a specific conveying speed condition according to the relationship. The liquid energetic material is used for synthesizing the optimal size of emulsified liquid drops in a reaction mixed solution.

The invention discloses a rapid concrete repairing material based on microbial mineralization as well as a preparation method and application of the rapid concrete repairing material. According to the method, hydrophobic modified porous particles are used as a carrier, microbial bacteria, nutrient substances and a calcium source with mineralization behaviors are soaked into pores of the porous particles through vacuum impregnation, the pores of the particles are properly sealed by adopting waterborne epoxy, and then the particles are packaged by using metakaolin and sodium silicate, so that the porous particles are obtained. And finally, compounding with fiber composite mortar to prepare the concrete rapid repairing material. The rapid concrete repairing material has the advantages of strong interface adhesion, environment friendliness, light weight, excellent surface compactness improvement effect, crack self-repairing and the like, and can be used for coating and repairing the defect surface of concrete.

The invention relates to a mine solid waste-based composite saline-alkali soil modifier as well as a preparation method and application thereof, and belongs to the technical field of soil remediation and solid waste recycling. The modifier is prepared from volcanic rock solid waste, rice husk and mussel shell as raw materials through oxalic acid activation, microbial fermentation carbonization and humic acid chelation, and comprises 50-70 parts of activated stone powder-containing porous particles, 20-30 parts of rice husk-based charcoal, 10-20 parts of humic acid chelated magnesium-calcium powder and 3-5 parts of a composite binder. The preparation method comprises the following steps: ultrasonically activating the stone powder oxalic acid, and puffing and granulating with the binder; inoculating the rice hulls with salt-tolerant bacillus and actinomycetes for aerobic fermentation and carbonization; and the shell is activated by oxalic acid and then is loaded with a humic acid calcium magnesium compound. The modifier is applied according to 50-200kg / mu, so that the nutritional ingredients and the air permeability can be improved. According to the method, solid waste recycling, solid waste consumption and landfill cost and CO2 emission reduction are achieved, and the method is suitable for ecological restoration of the coastal saline-alkali soil and has both environmental protection and economic benefits.

Functionalized materials that act as sorbent, as well as methods of making such materials and systems of using such materials, are provided. The disclosed processes, methods, and materials can be used for the separation of CO2 from fluid streams. In one aspect, the disclosed materials are synthesized by forming coated particles through the introduction of porous particles, such as silica, to a first reagent comprising a polymer. Then the functionalized material is formed as functionalized coated particles by the introduction of a second reagent comprising at least one adsorbing moiety to the surfaces of the coated particles. Formation of the functionalized material is in the presence of a chelating agent, antioxidant, and / or crosslinker. In some instances, formation of the functionalized material is further in the presence of a third reagent comprising an interaction moiety that is incorporated into the functionalized coated particles.

The invention discloses a preparation method of a high-stability manual buffer solution, which comprises the following steps of: introducing two types of slow-release porous particle structures, namely a first type of particles loaded with acidic or alkaline components and a second type of particles loaded with silver nanoparticles, so that continuous slow release and dynamic adjustment of the components in the buffer solution are realized; the pH drift and the aging of a buffer system are effectively delayed; meanwhile, slow release of the silver nanoparticles endows the buffer solution with lasting antibacterial protection, microbial growth is remarkably inhibited, and due to the structural design, the long-term pH stability and storage safety of the buffer solution are remarkably improved, the clarity and physicochemical properties of the buffer solution are guaranteed, and the stability of the buffer solution is improved. The method greatly expands the application range in the fields of high-requirement biological experiments, medical detection, long-term sample storage and the like, the particle addition amount and the component proportion can be flexibly adjusted according to actual requirements, the method adapts to different pH ranges and application scenes, and various experiment requirements of protein purification, long-term sample storage, high-sensitivity analysis and detection are met.

The invention relates to the technical field of ceramics, in particular to mottle crack glazed ceramic and a preparation method thereof.The ceramic comprises a green body, ground glaze and cover glaze, and the ground glaze is prepared from, by weight, 30-35 parts of kaolin, 25-30 parts of quartz, 20-25 parts of feldspar, 8-12 parts of ferric oxide, 5-8 parts of calcium carbonate and 3-5 parts of borax; the cover glaze is prepared from the following raw materials in parts by weight: 35 to 40 parts of feldspar, 25 to 30 parts of quartz, 6 to 10 parts of copper oxide, 5 to 8 parts of granular rock powder, 8 to 12 parts of borax and 5 to 8 parts of clay. Embedding porous particles into the green body to initiate explosion cracks, and fusing interlayer stress cracks and devitrification cracks to form a multi-stage composite crack network; iron ions in the ground glaze and copper ions in the cover glaze form ion gradient migration through the iron axe stone powder in the middle layer to generate red and green blended stripes; the microcapsule carbon powder regulates and controls the pores and texture of the glaze, and copper foil fragments are oxidized and reduced to form gilding-brown mottles.

The invention relates to a particulate material and a method for preparing the same. The particulate material is composed of a plurality of composite particles. The composite particle comprises a porous particle skeleton, and the porous particle skeleton comprises micropores and / or mesopores. The total pore volume of micropores and mesopores measured by gas adsorption is in the range of 0.4 to 2.2 cm3 / g. The composite particle includes a plurality of electroactive material domains and a plurality of modified material domains disposed within an internal pore volume of a porous particle backbone. At least a portion of the modified material domains are located between adjacent electroactive material domains.

Functionalized and crosslinked material, which may optionally be employed as a sorbent, as well as methods of making such materials and systems of using such materials are provided. The processes, methods, systems and materials herein can be used for the separation of carbon dioxide from fluid streams. In one aspect, a method of forming functionalized crosslinked particles comprises introducing at least a portion of a surface of each porous particle in at least a subset of a plurality of porous particles to a crosslinking agent and a first reagent comprising at least one adsorbing moiety. Examples of adsorbing moiety include silane-functionalized amines, amino-functionalized silanes (aminosilane), and polyamines. In some aspects the method further comprises introducing the porous particles to a second reagent comprising at least one interaction moiety such as a silane-functionalized amine, amino-functionalized silane (aminosilane), or polyamine. Examples of crosslinking agent include dialdehyde, diisocyanates, dihaloalkane, diepoxide and dianhydrides.

The invention relates to absorbable adhesive styptic powder and a preparation method thereof, and the absorbable adhesive styptic powder is characterized in that the absorbable adhesive styptic powder is formed by cross-linking aldehyde polysaccharide and a polyamino compound through Schiff base reaction, the raw materials are selected from at least one of glucan, sodium carboxymethyl cellulose, sodium hyaluronate, chitosan and carboxymethyl starch; the polyamino compound is selected from at least one of polylysine, polypeptide, bovine serum albumin and polyamine; the styptic powder is porous particles with the particle size of 10-1000 meshes, is cured into gel within 10 seconds after being in contact with body fluid, and is completely degraded within 15-60 days. According to the scheme, the styptic powder has the advantages of rapid wet adhesion, controllable degradation and excellent processability, and is an urgent clinical demand.

To provide porous particles capable of more effectively exhibiting performance of an active component.SOLUTION: A powder of porous tertiary particles, which are composed of aggregates of porous secondary particles is provided, where the average particle diameter of the powder is in the range of 0.1 to 5.0 mm, and in the pore size distribution of the powder, a first peak exists in the range of pore diameters of 5 nm or more and less than 100 nm (PdR1), and a second peak exists in the range of pore diameters of 100 nm or more and 10,000 nm or less (PdR2). When the pore diameter of the first peak is Pd1, the total pore volume (PV1) of pores with diameters of 0.75×Pd1 or more and 1.25×Pd1 or less accounts for 60% or more of the total pore volume of pores with diameters less than 100 nm (PVR1). When the total volume of pores with diameters less than 100 nm is defined as the first total volume (PVR1) and the total volume of pores with diameters of 100 nm or more is defined as the second total volume (PVR2), the value of PVR1 / (PVR1+PVR2) is in the range of 0.2 to 0.6.SELECTED DRAWING: Figure 1

A process for producing a porous host structure or a powder mass of multiple porous particulates containing silicon oxide (SiOx) therein, comprising (a) providing a porous host structure having a volume fraction of pores from 5% to 99.9%, wherein the porous host structure is selected from a carbonaceous, graphitic, graphene, or metallic material; (b) catalytically vaporizing Si from a mixture of a catalyst and elemental Si or a Si-containing material to form a vapor phase of Si or a precursor to Si; (c) immediately directing the vapor phase into pores of the porous host structure and facilitating the vapor phase to form solid Si particles or coating deposited in the pores to form a Si-impregnated porous host structure; (d) exposing the Si to an oxidizing environment to obtain SiO2-coated Si particles / coating or SiOx; and (e) optionally breaking and reducing the SiOx-impregnated porous host structure into smaller porous particulates.

The invention discloses a mine high and steep slope ecological restoration integrated system based on double-response gel and an ecological restoration method. The system comprises a three-channel rotational flow mixing bin, a pulse atomization spraying device and an AI visual control system, gradient spraying of erosion-resistant, nutrition and water-retention three-level matrixes is achieved, pulse atomization and YOLO-v8 driven crack recognition are matched, and the problem of'jet flow attenuation 'of a slope with the angle being 70 degrees or above in a traditional process is solved. The method comprises the following steps: preparing a pH-temperature double-response sodium alginate-chitosan gel seed bag, spraying according to a sequence of 10-15cm of a water retention layer, 20-40cm of a nutrition layer and 10-20cm of an anti-erosion layer, and performing multispectral inspection by using an unmanned aerial vehicle to realize dynamic maintenance. The matrix system takes stone powder porous particles, activated fly ash and other solid wastes as raw materials, the resource utilization rate of mine solid wastes is effectively improved, and the matrix system is suitable for repairing complex slopes in coastal areas, volcanic rocks, cold areas and the like.

A particulate nanocomposite material comprising, as determined by X-ray diffraction (XRD): elemental carbon (C); elemental nickel (Ni) in a cubic crystalline phase; a cubic nickel oxide (NiO) crystalline phase; an orthorhombic calcium borate (CaB2O4) crystalline phase; and, a magnesium borate (MgB2O4) crystalline phase. The porous particulate nanocomposite is characterized in that, based on the total number of atoms in the particulate nanocomposite material: the atomic concentration of carbon is from about 1 atomic percent (at. %) to about 10 at. %; the atomic concentration of nickel is from about 1 at. % to about 10 at. %; the atomic concentration of boron (B) is from about 1 at. % to about 10 at. %; the atomic concentration of magnesium (Mg) is from about 5 at. % to about 15 at. %; and, the atomic concentration of calcium (Ca) is from about 1 at. % to about 10 at. %.

The present invention relates to the technical field of polyurethane synthesis, and specifically to a method for preparing a highly wear-resistant polyurethane elastomer, comprising the following steps: placing porous particles in an oily liquid of dibutyltin dilaurate, heating and stirring, filtering, dispersing the filtered porous particles, cooling and storing; stirring a hydroxyl-terminated polyurethane prepolymer, a diisocyanate, a chain extender, porous particles, a stabilizer, carbon black, and a coupling agent at low temperature, uniformly pouring the mixture into a mold, subjecting the mold to microwave treatment, placing the mold in a constant temperature chamber for reaction, and demolding the resulting product. The present invention solidifies the dibutyltin dilaurate catalyst in the porous particles, heats the porous particles during microwave treatment, causing them to melt and diffuse into the raw material mixture, and catalytic polymerization occurs under heating in the constant temperature chamber. The resulting polyurethane product exhibits significantly improved properties such as wear resistance, high temperature resistance, and impact resistance.

An acoustic absorbing filler, the acoustic absorbing filler comprising agglomerates comprising a first phase comprising a plurality of porous particulates and a second phase comprising a binder; wherein the acoustic absorbing filler has a median sieved particle size of from 100 micrometer to 700 micrometers and a specific surface area of from 50 m2 / g to 900 m2 / g; wherein the acoustic absorbing filler has a normal incidence acoustic absorption of no less than 0.20 alpha at 400 Hz.

The invention discloses a bottom mud ecological restoration material as well as a preparation method and application thereof. The material is composed of a degradable carrier, a treatment flora and a multifunctional filler. The carrier is porous particles die-cast by corn straws and the like; the treatment flora comprises photosynthetic bacteria, bacillus and nitrifying bacteria; the filler is prepared from non-nitrate type hydrotalcite-like compounds, calcium nitrate, nitrate type hydrotalcite-like compounds and a flocculating agent according to a specific mass ratio. The preparation method comprises the following steps: carrying out pressure casting on the carrier, adsorbing the flora, and rolling the filler to form balls. The restoration method comprises the steps that a river channel is cut off in the dry season to form a closed area, materials are put according to the area ratio of 10: 1 for preliminary restoration, and after standing is conducted for 1-5 days, the materials are put along with water flow according to the area ratio of 2: 1 for deep restoration. Through the physical, chemical and biological synergistic effect, the sediment redox environment can be effectively improved, pollutant release and degradation are promoted, operation is easy and convenient, and the risk of secondary pollution is low.

To provide a new separation functional layer that is suitable for separating acidic gas from a mixed gas containing acidic gas.SOLUTION: A separation functional layer 1 of the present invention contains a polyimide P and porous particles. The polyimide P includes a structural unit A1 derived from a tetracarboxylic dianhydride having a six-membered acid anhydride structure. A separation membrane 10 of the present invention includes the separation functional layer 1 and a porous support 3 supporting the separation functional layer 1.SELECTED DRAWING: Figure 1

The invention discloses a preparation method of a self-repairing LATP composite solid electrolyte membrane, which comprises the following steps: S1, hydroxylating titanium aluminum lithium phosphate nanoparticles, and coating with an isocyanate polyurethane prepolymer to obtain porous PU-LATP particles; s2, carrying out copolymerization on adamantanediol diacrylate, acrylate and furfuryl acrylate, and then carrying out a Diels-Alder reaction with bismaleimide so as to form a reversible cross-linked precursor solution; and S3, mixing the PU-LATP particles with the precursor, a lithium salt and an auxiliary agent, carrying out vacuum defoaming, and drying to obtain the self-repairing LATP composite solid electrolyte membrane. According to the preparation method disclosed by the invention, the solid electrolyte membrane is endowed with the capability of quickly self-repairing microcracks at room temperature, and high ionic conductivity and a wide electrochemical window are considered at the same time; the mechanical strength is obviously improved, the thermal dimensional stability is excellent, and the strict requirements of the solid-state lithium battery on high safety and long cycle life can be met.

The invention provides a pole piece, a preparation method and application thereof. The pole piece comprises a current collector and an active material layer compounded on the surface of the current collector, the active material layer has a porous structure, and the porous structure is filled with porous particles. The porous structure of the active material layer is filled with the porous particles, so that the porous structure has an electrolyte storage effect, the dynamic performance of the electrode plate can be improved, the stability of the structure can be kept in the circulation and storage process by means of the porous particles, and the performance of the electrode plate is improved. The problems of deformation and collapse of the porous structure in the charging and discharging process of the electrode plate are solved.

The invention relates to an optical assembly (4) for a semiconductor lithography system, in particular for a projection exposure system, comprising: at least one housing (32, 32') with an interior (33, 33'), and at least one optical component (19, 20, 21) having a surface (19a, 20a, 21a) facing the interior (33, 33'). The optical assembly (3) has at least one porous particle trapping structure (29, 29') arranged on an inner surface (34a, 34a') of a wall (34, 34') of the housing (32, 32') or incorporated in the wall of the housing for trapping contaminating particles (24a, 24b) present in the interior (33, 33'). The invention also relates to a semiconductor lithography system, in particular a projection exposure system, comprising at least one such optical assembly (4).

The invention relates to the field of functional foods, and discloses a formula and a preparation process of medicinal and edible walnut milk with a sleep improving effect, and the composition comprises a formula A and a formula B which are physically separated from each other. The formula A is used as a substrate, contains walnut powder, a dairy product, pH sensitive food colloid and a pH regulator, and is prepared into porous particles with relatively large particle sizes through a fluidized bed granulation process; the formula B is used as a functional component, contains gamma-aminobutyric acid, theanine and various medicinal and edible plant extracts, and is prepared into fine powder through a low-temperature spray drying process. During brewing, pH change generated after the two formulas are mixed can trigger colloid thickening, and homogeneous and stable suspension liquid is formed; and due to the structural difference between the particles and the micro powder, ordered graded dissolution is realized, and the reconstituability is improved. The product disclosed by the invention has the beneficial effects of stable functional components, good brewing dispersity and high physical stability of brewed liquid.

A multicomponent nanocapsule composition comprising a core particle, an oil phase encapsulating the core particle, and an aqueous phase in which the encapsulated core particle is suspended is provided. The porous particle includes a cationic surfactant encapsulated in a porous particle. The oil phase includes an anionic surfactant and a zwitterionic surfactant. A method of making a multicomponent nanocapsule composition is also provided. A method of treating a hydrocarbon-bearing formation with the multicomponent nanocapsule composition is provided. The method may include providing a multicomponent nanocapsule composition, introducing the multicomponent nanocapsule composition into the hydrocarbon-bearing formation, displacing hydrocarbons from the hydrocarbon-bearing formation by contacting the multicomponent nanocapsule composition with the hydrocarbons, and recovering the hydrocarbons.

The invention discloses a visual efficient chloride ion removal adsorbing material and a preparation method and application thereof.The adsorbing material is prepared by the steps that hollow glass microspheres serve as a carrier, and hollow glass porous particles are synthesized from a mixture of hollow glass microsphere powder and a pore forming agent through a sol-gel method; the preparation method comprises the following steps: modifying the surface of a porous adsorption material through a low-temperature plasma bombardment technology to enhance the adsorption performance on chloride ions, and loading magnetic iron oxide nanoparticles on the porous adsorption material to prepare the chloride ion adsorption material; the adsorption material has the characteristic of environmental friendliness, not only can efficiently adsorb chloride ions in a water body, but also can realize the visualization of the adsorption process through the density difference before and after adsorption, has the characteristics of repeated use and easiness in regeneration, and has relatively high market application prospect and economic value.

To provide a biomass material for treating an effluent gas which can treat harmful substances still remaining in treated gas processed by a conventional effluent gas treatment apparatus.SOLUTION: A biomass material for treating an effluent gas contains algae biomass in an amount from 40 wt.% to 90 wt.%, and zeolite in an amount from 10 wt.% to 60 wt.%, where the contents are based on the total weight of the biomass material. The biomass material 320 molded into porous pellets is packed into a housing 310 and brought into contact with an effluent gas stream for treating the effluent gas.SELECTED DRAWING: Figure 4

This invention belongs to the technical field of carbon dioxide capture methods, specifically relating to a carbon dioxide capture material and method based on porous liquid physical absorption. The carbon dioxide capture material consists of a hydrophobic solid porous material and an aqueous dispersion medium containing polyvinylpyrrolidone (PVP). The aqueous dispersion medium accounts for 90-95 wt% of the total system mass, and the solid porous material accounts for 5-10 wt%. The preparation method includes the following steps: Step 1, placing the weighed PPVP-containing aqueous dispersion medium in an open container, forming a gentle vortex through stirring, and then slowly adding the solid porous material; Step 2, dispersing in an ultrasonic water bath; Step 3, oscillating in a constant-temperature shaker; Step 4, repeating the above ultrasonic and oscillation steps. Compared with a pure water system, the third type of porous liquid system based on hydrophobic porous particles obtained by this invention can achieve better continuous carbon dioxide capture through the synergistic effect of the solid porous material and the solid-liquid interface interaction region.

This separator (13) for a non-aqueous electrolyte secondary battery comprises a base layer (50) and a filler layer (52) disposed on the surface of the base layer (50), wherein the separator (13) is characterized in that the filler layer (52) is made of an inorganic material and includes porous particles (54) having pores with a pore diameter of 10-50 nm.

An object of the present invention is to provide purification conditions under which a target substance can be purified with high efficiency.SOLUTION: A step of applying a sample containing a target substance to a column packed with an insoluble carrier to adsorb the target substance to the insoluble carrier, and a step of applying an eluent to the column to elute the target substance adsorbed to the insoluble carrier, wherein the insoluble carrier is a porous particle having a pore with a diameter of 150 nm or more and 1000 nm or less and having at least one of a functional group and a ligand capable of adsorbing the target substance on the surface of the carrier, the problem is solved by providing the method, wherein the linear speed at the time of applying the sample is 1200cm / h or more and 3500cm / h or less.SELECTED DRAWING: Figure 1

The application discloses a fluorine removal agent and a preparation method thereof, and relates to the technical field of fluorine removal agents, and comprises the following components in parts by weight: 5-10 parts of an aluminum salt, 5-10 parts of an iron salt, 15-20 parts of a rare earth material, sodium citrate and beta-cyclodextrin; the addition amount of the sodium citrate is 5%-10% of the total mass of the aluminum salt, the iron salt and the rare earth material; and the addition amount of the beta-cyclodextrin is 30%-50% of the mass of the sodium citrate. Through the introduction of the synergistic system of sodium citrate and beta-cyclodextrin, the metal ion precipitation sequence is regulated, meanwhile, the beta-cyclodextrin captures competitive anions through molecular recognition and constructs a hydrogen bond network to block interference, and the combination of the microsphere type and the porous particle type further realizes dynamic directional transmission of pollutants and nuclear pore limited crystallization, and the active site distribution is reconstructed at the molecular level, so that a technical scheme with universality, economy and reliability is provided for the treatment of complex fluorine-containing wastewater.

The present application relates to porous particles and a method for preparing the same. The porous particles provided according to the present application have characteristics suitable for protein purification, especially affinity chromatography.