15results about How to "Strong water absorption" patented technology

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 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 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 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.

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.

This utility model relates to a moisture-proof packaging, including a main body and a cover, the cover being located above the main body. It also includes a drying box located inside the main body, the drying box being an open-top box. The drying box includes vertical drying sections on the left and right sides, horizontal drying sections on the front and rear sides, a water collection section located between each vertical and horizontal drying section, and a fixing plate located above each vertical drying section and detachably connected to the main body. Each vertical and horizontal drying section is connected to the water collection section. A baffle film is fixedly installed on the top of the drying box. Using the above solution, a moisture-proof packaging is provided that allows moisture from the air inside the main body to enter the drying box and be absorbed.

This utility model discloses a bridge truss deflection performance testing device, relating to the field of deflection testing instruments. It includes a deflection testing instrument, a storage plate, a rotating plate, a cleaning plate, and a drive mechanism. A lens is mounted on the outer wall of the deflection testing instrument. The storage plate is fixedly connected to the outer wall of the deflection testing instrument. The rotating plate is rotatably positioned between the deflection testing instrument and the storage plate via a rotating shaft. The cleaning plate is mounted on the rotating plate, and the drive mechanism is located inside the storage plate. This utility model utilizes the coordinated arrangement of the storage plate, rotating plate, cleaning plate, and drive mechanism. The drive mechanism can drive the sponge-material cleaning plate on the rotating plate to rotate 180°, cleaning the lens during rotation without scratching the precision lens of the deflection testing instrument. It has strong water absorption, allowing for easy cleaning of any water splashes onto the lens outdoors. It is also easy to disassemble, reusable, and easy to clean, ensuring effective cleaning every time and making it convenient to use.