33results about How to "Strong water absorption" patented technology

The utility model discloses a medical delactation bra, and relates to the technical field of brassieres, the medical delactation bra comprises a bra main body, the bra main body is formed by mutually attaching a bra surface layer and a bra inner layer which are the same in shape, cup stickers are arranged between the bra surface layer and the bra inner layer, and mutually-communicated and mutually-independent cavities are arranged in the cup stickers; the cavities are filled with mirabilite particles, the bra surface layer is provided with a zipper, and cavity inlets are formed in the positions, facing the zipper, of the cups. According to the application, the interior of the bra main body is filled with the mirabilite particles, the mirabilite can reduce milk secretion and relieve breast distending pain during delactation, and meanwhile, the mirabilite also has relatively strong water absorption and can absorb part of milk and relieve the moist feeling when the bra is worn.

The present application relates to the technical field of bamboo fiber composite material, in particular to a purification preparation method of bamboo fiber reinforced natural polymer composite material. The bamboo raw material is crushed and treated by steam explosion to obtain primary bamboo fiber; the primary bamboo fiber is sequentially subjected to organic solvent dewaxing treatment and oxidation system selective delignification treatment to obtain purified bamboo fiber; the purified bamboo fiber is treated in a tannin acid solution to form a polyphenol interface layer on the surface thereof; and a solution containing polyvalent metal ions is added to the treated bamboo fiber to form a coordination cross-linking interface layer on the surface of the bamboo fiber. The present application constructs a stable interface layer between the fiber and the natural polymer matrix. The interface layer can effectively transfer stress, significantly improve the tensile strength, bending strength and shear strength of the composite material, and solve the problem of weak interface and easy delamination of traditional natural composite materials.

The invention belongs to the technical field of cleaning supplies, and particularly relates to a cleaning tool which comprises a mop and a mop bucket body, and a clean water area and a placement area are arranged in the mop bucket body; the mop comprises a mop head and a mop rod which are hinged to each other, and a plurality of long wiping strips are arranged below the mop head; the water throwing basket is rotationally connected into the mop bucket body, and the bottom of the water throwing basket is divided into a cleaning area and a water storage area; and a locking device is arranged on the spin-drying basket / mop bucket body. When the locking device takes effect, the mop head is placed in the water throwing basket, the mop head rotates, the water throwing basket is static relative to the bucket body of the mop bucket, the liquid outlet device in the clean water area discharges liquid, clean water flows to the long wiping strip and the water storage area, and the long wiping strip can be cleaned through the cleaner in the water throwing basket. When the locking device does not take effect, the liquid outlet device does not discharge liquid, the mop head can drive the water throwing basket to rotate synchronously, and the cleaner fixedly arranged in the water throwing basket does not clean the long wiping strip. The invention provides a cleaning tool which is good in cleaning effect and saves labor.

The invention provides a low-water-absorption glass bead modified PBT (polybutylene terephthalate) material and a preparation method thereof. The low-water-absorption glass bead modified PBT material comprises the following components in parts by weight: 70-100 parts of PBT resin; 0 to 30 parts of solid glass beads; 0-5 parts of a toughening agent; 0-2 parts of an antioxidant; 0-2 parts of a lubricant; 0-2 parts of black color master batch; 0-2 parts of a coupling agent; 0-5 parts of polytetrafluoroethylene wax; wherein the average particle size of the solid glass beads is 1-50 [mu] m; the average particle size of the polytetrafluoroethylene wax is 3-15 [mu] m, and the weight-average molecular weight of the polytetrafluoroethylene wax is 10000-30000 g / mol; the weight ratio of the solid glass beads to the polytetrafluoroethylene wax is (5-10): 1. According to the invention, the polytetrafluoroethylene wax is added into the solid glass bead modified PBT material, so that the shrinkage difference between the material flow direction and the vertical flow direction is effectively reduced, the water absorption rate of the material is remarkably reduced, the preparation process is simple, and the production process is easy to control.

The application discloses a bacteriostatic and deodorizing zeolite cat litter and a preparation method thereof, and belongs to the technical field of zeolite cat litter preparation. The bacteriostatic and deodorizing zeolite cat litter is composed of the following components in parts by weight: 55-75 parts of modified zeolite, 3-6 parts of bacteriostatic gel, 2-5 parts of adhesive, and 1-3 parts of filler. The modified zeolite is prepared from sulfamic acid, N,N-dimethylformamide, lignocellulose and zeolite, and the bacteriostatic agent is prepared from four-arm polyethylene glycol, succinic anhydride, triethylamine, N-hydroxyl glutarimide, 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride and polylysine. The zeolite cat litter prepared by the method has excellent water absorption, antibacterial property and deodorizing property.

This disclosure presents an all-weather intelligent desalination device, comprising a high-transparency top cover, a solar energy storage device, and a housing. The housing includes a first chamber and a second chamber. A plurality of photothermal devices are disposed within the first chamber and connected to the housing via a rotating shaft. A raw water storage chamber is formed between the photothermal devices and the bottom of the housing. An evaporation and condensation chamber is formed between the photothermal devices and the high-transparency top cover. The photothermal device includes a photothermal structure and a hydrophobic layer, a first hydrophilic layer, a second hydrophilic layer, and a third hydrophilic layer disposed outside the photothermal structure. The first hydrophilic layer surrounds the periphery of the hydrophobic layer, forming a first planar structure. The second hydrophilic layer is perpendicular to the first planar structure. The third hydrophilic layer is connected to the second hydrophilic layer and forms a second planar structure. This device can achieve high-efficiency seawater desalination in all weather conditions and can adjust the rotation of the photothermal devices according to different light intensities to achieve efficient evaporation, greatly improving desalination efficiency.

The application discloses an integrated stretchable flexible wearable biosensor and a preparation method thereof, and belongs to the technical field of electrochemical sensing.The integrated stretchable flexible wearable biosensor is wrapped by a PAN / SiO2 sweat absorption layer.The method comprises the following steps: preparing a stretchable conductive composite fiber; preparing an integrated stretchable flexible sensing fiber; preparing a PAN / SiO2 sweat absorption layer; and preparing a sensor.The conductive composite fiber in the application can maintain stable performance under multiple bending and twisting, the sensor is integrated with a flexible integrated circuit chip and a flexible power supply device to obtain a fabric sensing system, the fabric sensing system can process acquired sensor data, and the detection data can be uploaded to a mobile terminal and a cloud end in real time through Bluetooth technology, real-time monitoring and management of a health condition of the biosensor are realized, six specific biomarkers can be efficiently detected by using only 1 muL of sweat, the amount of sweat required for activating the biosensor is 1 / 3 of that of the prior art, and the fabric sensing system can easily adapt to a tensile strain caused by exercise.

The invention provides expanded modified coconut fiber-based environment-friendly cat litter and a preparation method thereof, and belongs to the technical field of pet supplies. The expanded modified coconut fiber-based environment-friendly cat litter disclosed by the invention is prepared from the following components in parts by weight: 60 to 75 parts of expanded modified coconut fiber, 10 to 15 parts of starch, 15 to 25 parts of adhesive and 6 to 10 parts of water. The environment-friendly degradable cat litter which is low in dust, high in caking strength, excellent in water absorption and free of sticking to the bottom is prepared by taking the puffed modified coconut shell fiber prepared by puffing and modifying coconut shells as a main raw material.

The invention discloses a hydrogel dressing containing pearl sac liquid as well as a preparation method and application of the hydrogel dressing, and belongs to the technical field of medical dressings. The hydrogel dressing is prepared by taking polyvinyl alcohol (PVA) and chitosan (CS) as gel matrixes and loading Markov pearl sac liquid through an in-situ crosslinking technology. The hydrogel dressing is of a three-dimensional porous network structure and is excellent in water absorption performance, the mechanical property of the hydrogel dressing meets the wound repairing requirement, the bacteriostasis rate of the hydrogel dressing on common burn pathogenic bacteria such as staphylococcus aureus and pseudomonas aeruginosa exceeds 90%, and the hydrogel dressing is free of obvious cytotoxicity. When being applied to burn infection wounds, the medical dressing can effectively inhibit bacterial proliferation of the wounds, relieve inflammatory response, promote angiogenesis and tissue regeneration and remarkably improve the closure rate of the wounds, solves the problems that existing burn dressings are narrow in antibacterial spectrum, limited in repair promoting capacity and the like, provides a safe and effective novel dressing choice for clinical treatment of burn infection, and has wide application prospects. Meanwhile, the effective utilization of the martensitic pearl sac liquid is realized.

The application discloses an argon recovery system and method for graphene production waste gas, and belongs to the technical field of industrial gas recovery and purification, comprising a pretreatment unit, a compression unit and a purification unit; the pretreatment unit comprises a spray tower and a basket filter; three layers of spraying units and two layers of dust separation units are arranged in the spray tower; from the bottom of the tower upwards, the structure comprises a first spraying layer, a first separation composite layer, a second spraying layer, a second separation composite layer and a third spraying layer in sequence; by the above mode, the spray tower structure with the multistage purification structure is designed, the spray tower structure is used as the front pretreatment unit, most of the graphene dust can be efficiently removed, the problem of the dust blockage of the subsequent argon purification system is solved fundamentally, and the equipment maintenance cost is reduced.

The application provides a titanium dioxide type low-temperature hydrogenolysis catalyst and a preparation method and application thereof. The catalyst comprises a titanium dioxide carrier and an active component loaded on the titanium dioxide carrier, and the active component comprises scandium oxide and tungsten oxide. The preparation method of the catalyst comprises the following steps: dipping the titanium dioxide carrier in a mixed solution of scandium salt and tungsten salt for a period of time, so that the scandium salt and the tungsten salt are loaded on the titanium dioxide carrier; and then drying and calcining the titanium dioxide carrier loaded with the scandium salt and the tungsten salt, to obtain the titanium dioxide type low-temperature hydrogenolysis catalyst. The catalyst has good sulfur dioxide hydrogenation activity and organic sulfur hydrolysis activity, and can be applied to a process for treating sulfur recovery tail gas at a low temperature of 210-220 DEG C.

The utility model relates to a kind of adjustable body position pad for nuclear magnetic examination body position, comprising: body position pad ontology, body position pad ontology is wedge type;A pair of arm placing grooves, a pair of arm placing grooves are symmetrically arranged on the upper end surface of body position pad ontology;A pair of straps, a pair of straps are respectively arranged on the two sides of body position pad ontology, for fixing the forearm or wrist of examinee placed in a pair of arm placing grooves.The utility model provides a kind of adjustable body position pad for nuclear magnetic examination body position, the arm of the examinee is lifted by this body position pad, prevent arm to hang in air, when nuclear magnetic MR scanning, bring better comfort to examinee.For the forearm of conscious examinee, it can be placed on the arm placing groove above head by oneself, but for the forearm of unconscious examinee, it can be bound on the arm placing groove by strap.

This utility model relates to the field of textile fabrics, and more particularly to a green and environmentally friendly fabric, comprising a reinforcing surface layer and an environmentally friendly base layer. A heat-melting yarn is disposed between the reinforcing surface layer and the environmentally friendly base layer. The environmentally friendly base layer is made of regenerated cellulose fibers. The top and bottom ends of the heat-melting yarn are fixedly connected to the reinforcing surface layer and the environmentally friendly base layer, respectively. The heat-melting yarn is woven from heat-melting fibers. The reinforcing surface layer is woven from fiber bundles, which include tensile fibers, flame-retardant fibers, absorbent fibers, polyester fibers, and corrosion-resistant fibers. The tensile fibers, flame-retardant fibers, absorbent fibers, polyester fibers, and corrosion-resistant fibers are bundled together to form a tight structure. This invention solves the technical problems of insufficient environmental performance and functionality in traditional fabrics.

The application discloses a roof downspout structure and relates to the technical field of anti-seepage equipment. The roof downspout structure comprises a downspout, a water absorption part, an extrusion plate, a water collecting box and a control assembly. The extrusion plate is arranged on the top of the water absorption part. The water collecting box is slid up and down in the downspout hole. Before the water collecting box is filled with water flow, the control assembly controls the water collecting box to be close to the downspout hole. After the water collecting box is filled with water flow, the control assembly controls the water collecting box to slide downward. When the water collecting box slides downward, a power assembly drives the extrusion plate to extrude the water absorption part. A sealing plate is arranged on the bottom of the water collecting cavity and is used for opening or closing the cavity opening. After the extrusion plate extrudes the water absorption part, a driving assembly drives the sealing plate to open the cavity opening on the bottom of the water collecting cavity. After the water flow in the water collecting box is discharged, the power assembly drives the water collecting box to move upward. When the water collecting box moves upward, the driving assembly drives the sealing plate to close the cavity opening on the bottom of the water collecting cavity. The roof downspout structure can discharge the accumulated water on the waterproof layer and reduce the possibility of leakage of the waterproof layer.

The application discloses a kind of biological antibacterial non-woven fabric production method, belong to non-woven fabric production technical field, comprising the following steps: S1, acrylic acid salt, antimicrobial polypeptide, initiator, surfactant are dissolved in deionized water and stirred uniformly to obtain aqueous solution, S2, emulsifier is dissolved in organic solvent and stirred uniformly to obtain oil phase solution, S3, aqueous solution and oil phase solution are mixed uniformly and emulsified into emulsion and heated to react, after reaction is finished and cooling, product is filtered, washed, dried to obtain antibacterial microparticle, S4, antibacterial microparticle, synthetic resin, functional additive are mixed uniformly after heating and melt and are spun, stretched to form fiber silk, then fiber silk is curled, dried, cut to obtain antibacterial fiber, S5, antibacterial fiber is opened, carded and heated to make antibacterial fiber heat bonding, after cooling, antibacterial non-woven fabric is obtained;The antibacterial non-woven fabric of the application has good antibacterial durability and safety.

The utility model relates to a perfume powder feeding device with drying function, perfume powder feeding device with drying function includes a bin, a feeding assembly, a weighing unit, controller and a desiccant storage bin, the desiccant storage bin can be targeted to the moistureproof protection of perfume raw materials in the bin, avoid raw material damp agglomeration, influence the flowability and weighing accuracy of powder raw material, the controller controls the feeding assembly controllable delivery to the weighing unit of powder raw material is weighed, the weighing unit real -time transmission weighing data in the controller, and this accurate regulation delivery weight of feeding assembly.

This invention provides a ceramic proton exchange membrane for microbial fuel cells and its preparation method, comprising the following steps: mixing clay, an inorganic modifier, and an organic modifier to obtain a solid powder; the inorganic modifier is alumina and silicon dioxide, and the organic modifier is selected from one or more of wheat flour, biochar powder, straw powder, and bamboo powder; the solid powder is ball-milled, granulated, pressed into sheets, and calcined to obtain the ceramic proton exchange membrane. This invention addresses the problems of poor mass transfer performance and low power generation performance of traditional pure clay ceramic membranes. Using clay as the matrix material, and through specific inorganic and organic modifiers, the pore structure of the material is adjusted. A novel ceramic proton exchange membrane is then prepared through ball milling, granulation, pressing, and calcination. This membrane has low manufacturing cost, good proton transport efficiency, and extremely low internal resistance. When applied to microbial fuel cells, it can achieve higher output voltage and more stable power generation performance.

The utility model discloses a water sample sampler, including sampling container, adjusting structure, transmission structure and cleaning component, sampling container is equipped with water inlet and drain respectively, and water inlet is connected water pump, the outside of sampling container's top is equipped with support cylinder, and the joint seam is equipped between support cylinder and sampling container, adjusting structure includes top cap, plug -in board and locking structure, and top cap is located sampling container top, and plug -in board is located top cap bottom, and is inserted with joint seam, locking structure is located on the lateral wall of support cylinder, cleaning component includes cleaning roller and the pivot of being equipped in the middle of cleaning roller top, and cleaning roller is attached sampling container's inner wall setting, and transmission structure is equipped between pivot and top cap, the water sample sampler of the utility model, is convenient in sampling and adjusts the position of cleaning component, avoids the influence water quality and the volume of collection container bottom.

The utility model discloses a root system protection sleeve structure for seedling transplanting, which belongs to the technical field of seedling transplanting and is characterized by comprising an outer sheath, a hexagonal hole is arranged on the outer side of the outer sheath, a breathable moisturizing structure is arranged inside the outer sheath, a buffer protection structure is arranged on the outer side of the outer sheath, and the hexagonal hole is communicated with the buffer protection structure. By arranging the breathable moisturizing structure, operation is convenient and fast, the function is powerful, the elastic expanding and shrinking sleeve and the opening and closing sealing structure are arranged, the outer sheath is conveniently expanded and placed into a seedling root system, then the outer sheath is tightened and can be tightly attached to a seedling to be closed, and the wet buffer layer on the inner side of the outer sheath is made of high-density sponge and is stored after absorbing water; the moisture preservation layer made of the polyester fiber non-woven fabric is good in water absorption, water retention and air permeability, the moisture preservation layer and the moisture preservation layer are matched, moisture is slowly released for the root system through the air holes to preserve moisture, meanwhile, sufficient oxygen supply is guaranteed, humidity balance around the root system is maintained, and the protection effect on the seedling root system is effectively improved.

The application provides a poly(2-ethyl-2-oxazoline) block copolymer containing a sulfobetaine side group and a preparation method and application thereof. The copolymer prepared by the application has enhanced biocompatibility and stronger water absorption capacity due to the introduction of the sulfobetaine side group (the water absorption capacity of which is the strongest among zwitterionic groups) and poly(2-ethyl-2-oxazoline), and is more conducive to forming a hydration layer in a living body, so that water molecules repel the approach of immunoglobulins, thereby avoiding causing an immune response, and is expected to have a potential and huge development prospect in the field of biomedical materials. The copolymer of the application can be applied to drug loading and has excellent drug loading capacity and a slow release effect.

This invention discloses an antibacterial, dust-free, and environmentally friendly straw cat litter and its preparation method, relating to the field of cat litter preparation technology. The finished cat litter (96-144g) contains the following internal components: 60-90g straw powder, 10-15g yew leaves, 22.94-34.41g guar gum, 2.29-3.44g starch, 0.8-1.2g calcium propionate, with the remainder being water. Cat litter made using straw cores is rich in cellulose and has strong water absorption. The raw materials are natural products, possessing a natural plant fragrance, good deodorizing properties, and low price. Compared to other cat litters, straw core cat litter has strong water solubility and can be directly flushed. The addition of yew leaves can prevent common cat diseases, primarily targeting major zoonotic fungi in cats, such as Microsporum and Trichophyton mentagrophytes. Furthermore, this cat litter is directly flushable, has high water solubility, supports biodegradation, and reduces the probability of cats developing diseases.

The application provides a tissue engineering gel scaffold and a preparation method, a composite gel scaffold and an application thereof, wherein the tissue engineering gel scaffold comprises a decellularized matrix of a cephalopod, and a tissue source of the decellularized matrix of the cephalopod comprises at least one of a mantle of the cephalopod and a brachialia of the cephalopod. The tissue engineering gel scaffold of the application is based on the decellularized matrix of the cephalopod, has good biocompatibility, and has a regular arrangement structure, strong water absorption performance and strong mechanical properties. The structure, water content, mechanical properties and degradation rate of the tissue engineering gel scaffold are similar to those of soft tissue, the content of high proportion of unsaturated fatty acids, in which the content of omega-3 is much greater than that of omega-6, is beneficial to the inhibition of inflammation and the repair of tissue, and the tissue engineering gel scaffold can be compounded or used in combination with various active molecules, cells and the like, is used for defect filling and tissue repair in soft tissue regeneration, and is beneficial to promoting the soft tissue regeneration process.

The invention provides mochi premixed flour, mochi and a preparation method, and belongs to the technical field of food processing. The mochi premixed flour is prepared from the following components in parts by mass: 90 to 110 parts of low-gluten wheat flour, 60 to 80 parts of pre-gelatinized cassava starch, 25 to 35 parts of white granulated sugar, 1.5 to 2.5 parts of edible salt and 5 to 15 parts of whole milk powder. According to the mochi premixed flour, the low-gluten wheat flour and the pregelatinized cassava starch are used as main raw materials, protein in the wheat flour can form a gluten network, and mochi is endowed with certain toughness; the pre-gelatinized cassava starch can be gelatinized by means of high amylopectin content and high water absorption rate without heating cold water and stirring, a large amount of steam can be generated after baking to maintain the hollowness of the product, and meanwhile, the mochi has the unique taste of being soft, glutinous and elastic. A product prepared from the mochi premixed flour can keep the soft, glutinous and chewy taste of a baked mochi bag; meanwhile, after baking, the product has a relatively large volume expansion degree and is in a hollow state.

The application discloses a gas diffusion module of a fuel cell, a fuel cell and a preparation method. The gas diffusion module comprises a substrate layer and a microporous layer which are arranged in sequence. The substrate layer is provided with a first hole group and a second hole group. The first hole group and the second hole group are both provided with micro-perforations. The hydrophobicity of the micro-perforations on the first surface is greater than that on the second surface. The pore diameter of the micro-perforations located in front of the air flow direction in the first hole group and the second hole group is greater than that of the micro-perforations located behind the air flow direction. Alternatively, the opening density of the micro-perforations located in front of the air flow direction in the first hole group and the second hole group is greater than that of the micro-perforations located behind the air flow direction. On any homologous line perpendicular to the air flow direction, the opening density of the micro-perforations of the first hole group is greater than that of the micro-perforations of the second hole group, and the pore diameter of the micro-perforations of the first hole group is smaller than that of the micro-perforations of the second hole group. The water in different positions of the cathode surface is kept relatively balanced, and water accumulation and excessive water loss are prevented.

The invention discloses a polyvinylpyrrolidone grafted poly (dimethylaminoethyl methacrylate) chitosan nanofiber as well as a preparation method and application of the polyvinylpyrrolidone grafted poly (dimethylaminoethyl methacrylate) chitosan nanofiber. The preparation method comprises the following steps: modifying PVP and PDMAEMA on chitosan through an atom transfer radical polymerization method, dissolving in an acetic acid solution, and performing high-voltage electrostatic spinning; completely soaking the obtained nanofibers in a foaming solution, cleaning the foamed nanofibers after stabilization, then carrying out bubble removal treatment, freezing and freeze-drying to obtain porous nanofibers; and dissolving musk ketone in absolute ethyl alcohol, soaking the porous nanofiber in the musk ketone solution, and after the absolute ethyl alcohol is completely volatilized, obtaining the product. The invention provides an intelligent nanofiber dressing capable of actively sensing and responding to diabetes wound microenvironment change (pH). The dressing can realize on-demand release of drugs, synergistically manage wound exudate, remarkably improve blood circulation and antibacterial effects, and promote healing of diabetic wounds.

The invention relates to a bidirectional humidity control material for a lithium battery pack of a new energy vehicle as well as a preparation method and application of the bidirectional humidity control material. The preparation method comprises the following steps: firstly, carrying out polymerization reaction on sodium salt, chlorine salt and a hyperbranched hydrophilic polymer in a solvent; dip-coating a base material in the reaction mixture, and drying to obtain the moisture absorption cotton; the preparation method comprises the following steps: mixing and banburying non-vulcanized rubber, a water-absorbing polymer, a thermoplastic elastomer, a polyether ester plasticizer, stearic acid, carbon black and titanium dioxide to obtain a water-absorbing expansion polymer synthetic body; calendaring the water-swelling polymer synthesis body to obtain a water storage sheet; and finally, sequentially overlapping the microporous permeable membrane, the moisture absorption cotton, the water storage sheet, the moisture absorption cotton and the microporous permeable membrane, and carrying out hot pressing. Compared with the prior art, the humidity-controlling material prepared by the invention has the advantages that the hyperbranched hydrophilic polymer has a spatial network structure and is provided with a large number of hydrophilic groups, the super absorbent polymer has excellent porosity and has long-term moisture absorption capacity, and the water storage layer has excellent water absorption, water storage and water locking capacity.

This invention relates to the field of metal-organic framework (MOF) material preparation technology, and discloses a polyacid-based MOF material, its preparation method, and its applications. The chemical formula of this polyacid-based MOF material is M2(C7H8N4). n (HBW 12 O 40 )·mH2O, and the polyacid-based metal-organic framework material is a plate-like crystal, wherein M is Co and / or Ni, n is 1-6, and m is 3-10. According to the technical solution of the present invention, a sixteen-membered ring is formed by interconnecting metal atoms with Bim ligands, and (HBW 12 O 40 ) 4‑ The anionic unit constructs a unique three-dimensional structure with three connection points, which enables the obtained polyacid-based organometallic framework material to have better water absorption performance.

This invention relates to a method for synthesizing dust-free silica gel cat litter at the source. Its morphology and mesoporous structure can be controlled at the source according to usage requirements, belonging to the field of pet product manufacturing technology. This method uses sodium silicate and an acidic solution as raw materials. By controlling the pH, temperature, and reaction time during the gel synthesis stage, the density of hydroxyl groups and the pore structure of the silica gel surface can be controlled at the source. Further optimization of its mesoporous structure and surface properties is achieved through treatment in an alkali metal salt solution. This method eliminates the need for subsequent resin coating or chemical additives, simultaneously achieving dust-free, high-adsorption, long-lasting odor-locking, and structural antibacterial functions at the synthesis source. The resulting silica gel cat litter has low dust content, high water absorption, and strong adsorption capacity for odors such as ammonia. The production process covers the entire process from synthesis and modification to sorting and packaging, making it suitable for large-scale continuous production. It solves the problems of balancing performance and environmental protection, unstable quality control, and fragmented industrial chains inherent in traditional processes.

This invention relates to a whole coconut husk mixed cultivation substrate and its preparation method, belonging to the field of soilless cultivation substrate technology. The beneficial effects of this invention are as follows: This invention directly crushes whole coconut husks without separating the coconut husk fibers, producing a whole coconut husk mixed cultivation substrate with a short fiber content as high as 40%~60% in one step. This overcomes the long-standing technical biases that "coconut husk fibers are difficult to crush directly" and "coconut coir should have its fibers removed as much as possible." The short fibers in the product form a three-dimensional network structure, significantly improving the substrate's aeration and root development environment, increasing crop root density by more than 50%. Simultaneously, it eliminates the fiber separation and re-mixing processes, reducing equipment investment by approximately 30% and energy consumption by approximately 40%. It utilizes ambient temperature mechanical cold pressing for desalination and dehydration, without thermochemical damage, resulting in a product with an EC value as low as 0.5~1.5 mS / cm and a resilience rate ≥99%, combining excellent cultivation performance, simplified process, and convenient storage and transportation.

The present disclosure relates to an oil filtering material, a preparation method and application thereof, and the raw materials of the oil filtering material include, in terms of mass percentage, 30-60% of water-absorbing material, 30-60% of thermoplastic elastomer material, 5-10% of compatibilizer and 1-5% of inorganic filler. The preparation method includes: mixing a certain proportion of the water-absorbing material, the thermoplastic elastomer material, the compatibilizer and the inorganic filler to obtain a mixture; plasticizing the mixture to obtain a melt; vulcanizing the melt to obtain a vulcanizate; crushing the vulcanizate to obtain a water-absorbing swelling material; uniformly laying the water-absorbing swelling material on a porous material and performing hot-pressing compounding to obtain the oil filtering material. The oil filtering material, the preparation method and application thereof have low cost, simple preparation process, and can improve the filtering effect of oil, especially vehicle ethanol gasoline, and prolong the service life of the oil filtering material.