5results about How to "Aperture adjustable" patented technology

The embodiment of the present application relates to a kind of copper intermetallic compound porous materials and its preparation method and application, wherein, preparation method includes: metal Mg, Zn, Cu, M is mixed, is handled by induction smelting, and MgZnCuM alloy ingot is obtained;MgZnCuM alloy ingot is treated by spinning, and MgZnCuM precursor is obtained;MgZnCuM precursor is placed in gas phase de-alloying system and is treated by first vacuum heat treatment, and copper intermetallic compound porous material MgCuM is obtained;MgCuM has double continuous structure.The preparation method is simple and easy to operate, pore size is adjustable, and pore distribution is uniform, and the preparation process is environment-friendly and pollution-free.

This invention relates to the field of nanomaterials technology, specifically to a method for preparing silica using continuous flow. The method involves mixing an organic base, a surfactant, and water to obtain solution A; mixing a silicon source and an organic solvent to obtain solution B; reacting solutions A and B through a continuous flow apparatus, separating the solid product, and calcining it to obtain silica; wherein the flow rates of solutions A and B are 5-10 mL / min, and the reaction temperature is 20-45℃. In this method, silica is prepared using a continuous flow process, and the prepared silica has a nanosphere morphology with a specific surface area of ​​200-800 m². 2 / g, with a pore size distribution of 2-50 nm and a particle size distribution deviation (PDI) of less than 2%.

The utility model relates to a kind of fruit and vegetable juice extraction equipment, belong to fruit and vegetable juice processing technical field.The equipment aims at the problem of laborious and inconvenient cleaning of manual juice extraction, provides a kind of solution.Equipment includes base, fixed rod, juice barrel, fixed inclined block, detachable juice extraction assembly (including funnel box and metal filter box), extrusion assembly (including pressing handle, rotating plate, gland) and brake assembly.When using, fruit is placed, and pressing handle drives gland to extrude juice vertically by rotating plate structure, and juice flows out after filtering.When cleaning, brake assembly is operated to quickly remove the fixing of juice extraction assembly, and funnel box and metal filter box are conveniently taken out for cleaning.This way reduces the strength needed for operation, and makes disassembly and cleaning more convenient.

This invention relates to a composite sodium-replenishing material, its preparation method, an electrode, and a battery. The composite sodium-replenishing material comprises a matrix, a sodium-replenishing agent body, and a conductive reinforcement. The matrix is ​​porous carbon fiber; the sodium-replenishing agent body is distributed on the surface and within the pores of the matrix; the conductive reinforcement is partially embedded within the sodium-replenishing agent body and partially located on its outer surface. The preparation method of the composite sodium-replenishing material includes the following steps: hydrothermal treatment of a dispersion; the dispersion comprises porous carbon fibers, sodium salt, and a conductive reinforcement. The composite sodium-replenishing material of this invention can improve the initial efficiency and capacity retention of sodium-ion batteries.

This invention discloses an asymmetric polyethersulfone ultrafiltration membrane and its preparation method, belonging to the field of membrane separation technology. The preparation method of the asymmetric polyethersulfone ultrafiltration membrane includes the following steps: 15-30 parts of polyethersulfone, 2-10 parts of polyvinylpyrrolidone, 60-80 parts of a cyclic lactam solvent, and 1-8 parts of a volatile pore-forming agent are melt-mixed at high temperature according to the specified ratio, cast into a film, cooled and solidified, extracted with hot water, and dried to obtain the asymmetric ultrafiltration membrane. This application uses a system containing a cyclic lactam solvent and a volatile pore-forming agent, resulting in a low operating temperature during the preparation process, reducing energy consumption and promoting energy conservation and environmental protection. The obtained ultrafiltration membrane has an asymmetric structure, with a dense skin layer on the surface and a continuous sponge-like porous structure in the internal support layer. It has no macropores or finger pores and possesses high filtration accuracy and high flux, making it applicable to ultrafiltration, macromolecule retention, water treatment, and other fields.