16results about How to "Easy reunion" patented technology

This invention discloses an antifouling membrane made of lanthanum-loaded carbon nanomaterials suitable for phosphorus recovery in wastewater, its preparation method, and its applications. The invention involves loading lanthanum carbonate octahydrate onto the surface of multi-walled carbon nanotubes (MWCNTs) to form lanthanum-loaded carbon nanomaterials (La@MWCNTs), which are then deposited onto the surface of a polyethersulfone-based membrane using vacuum filtration to form a self-supporting membrane. The prepared lanthanum-loaded carbon nanomaterial antifouling membrane possesses both phosphorus removal and recovery capabilities, exhibiting high efficiency in phosphorus removal from water. This facilitates phosphorus elution and recovery, effectively solving the problems of lanthanum-loaded carbon nanomaterial aggregation and recovery, and effectively avoiding the risk of lanthanum-based adsorbent leakage during phosphorus removal. Furthermore, the lanthanum-loaded carbon nanomaterial antifouling membrane operates within a low-pressure range, exhibiting low energy consumption and effectively mitigating membrane fouling caused by humic acid. It shows promising application prospects in wastewater phosphorus recovery and eutrophication control.

The application discloses a kind of solid electrolyte material and its preparation method, positive pole piece, solid electrolyte film and full solid battery, it is related to solid battery field;Method comprises: lithium lanthanum zirconium oxygen base solid electrolyte is dispersed in first solvent, and electrolyte dispersion liquid is made;Acidic pH regulator is added to the electrolyte dispersion liquid, and the pH of the electrolyte dispersion liquid is adjusted to 7~8, and neutral dispersion liquid is obtained;Orthosilicate is added to the neutral dispersion liquid and mixed to obtain dispersion solution;During mixing process, polysiloxane is formed by the reaction of orthosilicate, and polysiloxane is coated on the surface of lithium lanthanum zirconium oxygen base solid electrolyte;The dispersion solution is subjected to electrolyte separation and drying treatment to obtain a solid electrolyte material.The application aims to improve the surface properties of lithium lanthanum zirconium oxygen base solid electrolyte, so that it can build good interface contact with other inorganic materials.

This invention discloses a gas diffusion layer with multi-level mass transfer channels, its preparation method, and its application. The gas diffusion layer with multi-level mass transfer channels includes a substrate layer and a microporous layer on the substrate layer; wherein the microporous layer comprises carbon black, hollow porous carbon nanofibers, and optionally a hydrophobic binder. This invention uses hollow porous carbon nanofibers as a novel MPL carbon material to synergistically construct a gas diffusion layer with better water vapor management capabilities in conjunction with carbon black particles. The resulting gas diffusion layer exhibits excellent comprehensive performance; its hollow porous structure provides additional water transport channels, improving water vapor transport capacity, thereby enabling the assembled membrane electrode to have better output performance.

This invention belongs to the fields of powder metallurgy and materials science and technology, specifically disclosing a preparation process for a high-wear-resistant WC-based composite material. The process involves preparing WC powder, second-phase powder, and graphene material; adding the graphene material to a dispersion medium and performing ultrasonic dispersion; mixing the graphene dispersion with the WC powder and second-phase powder and ball milling; drying the mixture using a vacuum rotary evaporation drying process; and densifying it using a hot-pressing sintering process. This invention enables the WC-based composite material to simultaneously achieve high hardness and high fracture toughness; effectively inhibits oxidative wear of the WC-based composite material at high temperatures, improving its high-temperature wear resistance; and achieves uniform and stable dispersion of the graphene reinforcing phase in the WC matrix, avoiding agglomeration, thereby fully utilizing its strengthening and lubrication effects. The composite material prepared by this invention is particularly suitable for use as high-speed cutting tools, high-temperature molds, and high-temperature moving parts in aerospace applications, and has broad application prospects.

The application provides a thick film positive photoresist composition, a preparation method and application thereof. The thick film positive photoresist composition comprises 70-90 parts of a base resin, 10-30 parts of a photosensitive compound and 100-150 parts of a solvent A; the base resin comprises a benzophenone modified phenolic resin and optionally an unmodified phenolic resin; the mass percentage of benzophenone groups in the base resin is 0.8-7.5% based on 100% of the mass percentage of the base resin; the photosensitive compound comprises a non-benzophenone photosensitive compound and optionally a benzophenone compound; the mass percentage of the benzophenone compound is less than or equal to 3.0% based on 100% of the mass percentage of the photosensitive compound. The application improves the uniformity of the benzophenone structure in the thick film positive photoresist composition by designing the specific composition of the thick film positive photoresist composition, thereby improving the steepness of the photoresist and realizing the development of the pattern.

This invention provides a method for dyeing with vat dyes in an overflow dyeing machine. The use of a dye premix significantly improves dyeing performance. The cationic properties of modified cationic starch electrostatically adsorb onto fabric fibers, allowing the coated dye particles to quickly and evenly adhere to the fabric surface. This avoids localized color differences caused by uneven dye dispersion in the dye bath, and the water flow impact in overflow dyeing prevents localized dye aggregation, effectively improving dyeing uniformity and ensuring consistent dyeing results for the same batch of fabrics. The stable structure formed by the cross-linking of modified cationic starch and vat dye forms a protective film on the fabric fiber surface after color fixation, enhancing the binding stability between the dye and fiber, reducing damage to dye molecules from external factors such as light, improving the dye's lightfastness and the fabric's sunlight fastness. Its film-forming properties also make the dye and fiber bond more firmly, preventing fading.

This invention discloses a low-temperature solid-phase synthesis method for manganese tetroxide, belonging to the field of inorganic functional material preparation technology. The preparation method includes: preparing a targeted organic ammonium salt surface modifier; preparing a composite precursor by high-energy ball milling of a manganese source (γ-type MnOOH) and a rhombohedral MnCO3, a modifier, and a composite auxiliaries; obtaining a crude product through a low-temperature solid-phase reaction at 220-350℃ under a nitrogen or argon inert atmosphere; and obtaining the final product through fluidized bed desorption, air jet milling depolymerization, sieving, acid washing, and vacuum drying. To address the shortcomings of existing solid-phase synthesis methods, such as high energy consumption, easy generation of impurities, and product agglomeration, this invention proposes a synergistic regulation and low-temperature solid-phase synthesis technology. Through specific manganese source formulation and the synergistic effect of modifiers and auxiliaries, pure-phase synthesis at 220-350℃ is achieved, solving problems such as high-temperature dependence and impurity phase formation. The product has a regular crystal structure, high purity, and good dispersibility, making it suitable for high-end lithium-ion battery cathode materials and other applications. The process is energy-efficient and environmentally friendly.

The application discloses a cell for displaying diatom peptide R5 on the surface, and a preparation method and application thereof. The cell for displaying diatom peptide R5 on the surface is mixed with silica-containing sandstone material, so that the preparation and regeneration of a biological building material are realized. The cell for displaying R5 peptide on the surface is in-situ mineralized and self-assembled into an anaerobic core-shell structure, an anaerobic microenvironment is created, and the fermentation yield under anaerobic conditions is improved.

This invention provides an MXene-AP-HOPO self-supporting composite membrane for uranium-containing wastewater treatment, its preparation method, and its application. Specifically, it relates to an MXene-AP-HOPO self-supporting composite membrane for uranium-containing wastewater treatment. The composite membrane is a three-dimensional porous self-supporting membrane structure formed by amino-functionalized MXene nanosheets as a substrate and hydroxypyridinone functional monomers covalently coupled to the substrate via amide bonds. The composite membrane of this invention, by leveraging the high specific coordination ability of HOPO for uranyl ions and the excellent structural properties of MXene, solves the defects of HOPO due to its high water solubility, such as easy dissolution and loss in aqueous solutions, and the poor reusability of existing HOPO-based adsorbent materials. It also overcomes the problems of traditional powder adsorbents, such as difficult solid-liquid separation, easy agglomeration, high recycling costs, and difficulty in adapting to continuous industrial processes, thus achieving efficient treatment of uranium-containing wastewater and convenient recycling and reuse of materials.

The application relates to the field of electrochemistry, and provides a positive electrode additive composition, a positive electrode slurry and a positive electrode sheet, which comprise an additive powder, a dispersion aid and a solvent; the additive powder is a metal element doped metal organic framework material; the metal element comprises at least one of Li, Na, K, Ca, Mg, Cu, Co, Ni, Fe, Cr, Ti, Zn and Mn, and the molar content of the metal element is 0-2.3 based on the amount of substance of the metal element doped metal organic framework material. The additive is first fully wetted and dispersed to form a positive electrode additive composition in the form of a mixed glue liquid, and then added into the slurry, so that the problem of easy agglomeration of the additive powder can be effectively solved, and the stability of the positive electrode slurry is improved. The positive electrode additive composition is in the form of a mixed glue liquid, so that the additive is easier to mix with other materials, the preparation process of the positive electrode slurry can be simplified, and the production efficiency is improved.

The application provides a preparation method of a composite dielectric elastomer film and a dielectric elastomer film actuator. The preparation method comprises the following steps: step 1: mixing BTRU@CDs giant electro-rheological particles with an electro-rheological liquid dispersion phase to obtain a suspension; step 2: uniformly mixing silicone rubber with the suspension to obtain a composite dielectric elastomer prepolymer, wherein the mass ratio of the silicone rubber to the suspension is 15:1 to 1:1, and the mass ratio of the BTRU@CDs giant electro-rheological particles in the composite dielectric elastomer prepolymer is 5-40%; and step 3: film forming is performed on the composite dielectric elastomer prepolymer to obtain a composite dielectric elastomer film. The composite dielectric elastomer film prepared by the preparation method of the composite dielectric elastomer film has better actuating performance, better mechanical performance and better cycle stability than traditional rubber elastomers. The problems of high driving voltage, large pre-stretching ratio, limited actuating strain, poor fatigue resistance and easy breakdown of existing dielectric elastomer materials are solved.

This invention provides an integrated wastewater treatment device for enhancing flocculation, including a flocculation unit. The flocculation unit includes a drive shaft and an impeller assembly. The top end of the drive shaft is connected to a drive component, and the bottom end is mounted on the bottom of the flocculation tank via a bearing. The impeller assembly includes an outer impeller assembly, which is mounted on the drive shaft via a fixing ring. The outer impeller assembly includes a first outer blade group, a second outer blade group, and a third outer blade group, which are uniformly mounted on the fixing ring circumferentially along the drive shaft. The vertical cross-sections of the first, second, and third outer blades are all curved surfaces composed of two sine curves. Each of the first, second, and third outer blades has a cavity. Each of the first, second, and third outer blades has a second discharge port. The integrated wastewater treatment device provided by this invention effectively improves the flocculation effect of the entire space, creating conditions for efficient sedimentation.

This invention discloses a method for controlling the morphology of boehmite, relating to the field of boehmite technology. The method includes the following steps: adding an aluminum source to deionized water to prepare a slurry; adding a morphology modifier to the slurry, and then transferring it to a hydrothermal reactor for hydrothermal reaction; cooling, washing the product with water, and drying to obtain boehmite with different morphologies. This invention uses an aluminum source and a morphology modifier to prepare boehmite with different morphologies through a hydrothermal reaction, which can control the morphology and thickness of the boehmite from blocky, plate-like to flake-like, while also improving the dispersion and purity of the boehmite.

The application discloses a kind of lithium ion battery dry mixing process, it is related to lithium ion battery technical field, including the following steps, part of positive electrode material and conductive agent are added into stirring device, stirring mixes, binder and remaining positive electrode material are added into stirring device, stirring mixes, carbon nanotube and anhydrous ethanol are added into container, ultrasonic stirring, again, alumina sol is added into container, continue stirring, the mixture in container is added into solvent, stirring mixes, obtain mixed solvent, solvent is added into stirring device, stirring mixes, again, mixed solvent continues to be added into stirring container device, stirring mixes, slurry prepared by the application has high solid content, good dispersion effect, small viscosity and high viscosity stability.

This invention relates to a bacterial strain that improves the physical structure of red mud and its application. The strain BRT1 is classified as Staphylococcus epidermidis. Staphylococcus epidermidis The accession number is GDMCC No. 66375, the accession date is May 22, 2025, and the depositary institution is Guangdong Microbial Culture Collection Center. This invention utilizes the BRT1 strain, which efficiently improves the physical structure of red mud, solving the technical problem of poor red mud structure. The BRT1 strain secretes extracellular polymeric substances (EPS) as a bio-cementitious agent, effectively promoting the aggregation of red mud particles and forming stable aggregate structures.

The application discloses a modified ionomer, which comprises a Nafion solution and an aliphatic multifunctional monomer. The modified ionomer provided by the application inhibits the agglomeration of the ionomer and IrO2 by using the aliphatic multifunctional monomer to self-assemble with the side chain sulfonic acid groups of the ionomer, the uniform distribution of the ionomer and the IrO2 catalyst improves the proton and electron transmission capacity, the porous structure promotes the gas and water transmission, and thus an anode catalyst layer with more micropores and more uniform distribution of the ionomer and the catalyst is obtained. The application further discloses a modification method of the modified ionomer and application of the modified ionomer in a membrane electrode. Test tests show that the membrane electrode prepared from the modified ionomer can make the electrolytic tank performance reach 2.98 A cm ‑2 @1.9 V 0.5 mg cm ‑2 , the catalyst utilization rate reaches 0.053 g Ir ·kW ‑1 , which is almost half of the target of 0.1 g Ir ·kW ‑1 of the International Renewable Energy Agency (IRENA) in 2026, and has good economic and social benefits.