5results about How to "Process innovation" patented technology

The invention discloses a preparation method and application of a nano porous foamed aluminum material, and belongs to the technical field of porous metal materials. The method comprises the following steps: mixing main aluminum powder with SiO2 coated aluminum powder waste; the three-layer core-shell pore-forming agent is of a PMMA inner core / Sn-Bi alloy middle layer / Al2O3 outer layer structure, and the PMMA particle size of the three-layer core-shell pore-forming agent is in gradient distribution (the surface layer is 50-100 nm, the middle layer is 200-300 nm, and the core layer is 400-500 nm); after cold press molding, two-stage stepped sintering is carried out, in the first stage, Sn-Bi alloy is melted at low temperature in N2-H2 atmosphere to wrap aluminum powder, and in the second stage, PMMA is decomposed at high temperature under vacuum, carbon-containing gas and pressure to form pores, and an Al4C3 reinforced phase is generated in situ. High-performance fireproof, catalytic and electromagnetic shielding functional materials can be further prepared through surface compounding of Al4C3 / expanded graphite, in-situ growth of ZnO nanorods / Pt or compounding of carbon nanotubes, and the material can be widely applied to the fields of new energy batteries, environment-friendly catalysis and 5G communication.

This invention discloses a high-efficiency halogen-free flame-retardant tape and its preparation method. The flame-retardant tape has a layered structure composed of layers from top to bottom, with each layer consisting of a flame-retardant acrylic adhesive layer and a release paper layer from top to bottom. The flame-retardant acrylic adhesive layer is a dense, non-porous film layer, in which phosphorus-based and nitrogen-based halogen-free flame-retardant components are uniformly distributed in the acrylic adhesive matrix. The flame-retardant acrylic adhesive layer completely covers the surface of the release paper layer, forming a tightly bonded integrated structure. This ensures that the flame-retardant acrylic adhesive layer forms a dense, continuous, and non-porous structure, and that the phosphorus-based and nitrogen-based halogen-free flame-retardant components are uniformly distributed in the adhesive matrix, significantly improving the overall structural stability and flame-retardant performance of the tape. This invention focuses on innovation in process flow and calculation steps, without requiring complex mechanical adjustments, resulting in strong process controllability, excellent batch-to-batch performance consistency, and suitable raw material costs for large-scale production.

The invention relates to the field of garment manufacturing, and particularly discloses a manufacturing method for wool garment dyeing and pattern design. A manufacturing method for wool garment dyeing and pattern design comprises the following steps: S1, dyeing: blending a to-be-dyed wool garment with a dye liquor containing an anionic direct dye to obtain a to-be-expanded and dyed wool garment; s2, rubbing and dyeing: adhering the cationic thermal migration auxiliary agent dispersion liquid to a rubbing mold, and rubbing the cationic thermal migration auxiliary agent dispersion liquid to a corresponding part of the wool garment to be rubbed and dyed by using the rubbing mold to obtain a pre-formed wool garment; s3, air drying; and S4, post-treatment: carrying out color fixation and soaping to obtain the finished garment. The manufacturing method can replace spraying dyeing printing and tie-dyeing, the process is innovative, the process is simplified, dyeing is firm, the grade of the wet rubbing fastness is high, the effect is natural and random, energy is saved, consumption is reduced, the product pattern is special, stable production can be achieved, and the manufacturing method is suitable for the personalized requirement of the current market.

The invention discloses a biomass-based porous carbon material as well as a preparation method and application thereof, and belongs to the technical field of preparation of porous carbon materials. The method comprises the following steps: dissolving a phosphorus source and a carbon source in a solvent, and drying to obtain a pyrolysis precursor; and carrying out temperature programming pyrolysis on the precursor in an air atmosphere to obtain the product. According to the method, a phosphorus source and carbon source synergistic carbonization system is constructed, and the dual effects that the phosphorus source forms a compact carbon layer to isolate oxygen at a low-temperature stage and forms a stable POC bond with a carbon skeleton at a high-temperature stage are utilized, so that stable carbonization of the biomass carbon source is successfully realized in an air atmosphere, and the dependence of a traditional process on an inert atmosphere is broken through. The prepared porous carbon material has excellent specific surface area and structural stability, and can be widely applied to the fields of electromagnetic wave absorption, pollutant adsorption, catalytic carriers and the like.

The invention belongs to the technical field of fuel cells, and provides an aperture-adjustable sulfur-nitrogen co-doped mesoporous carbon material for a fuel cell and a preparation method and application thereof.The preparation method comprises the steps that organic magnesium salt, a polyhydroxy compound capable of being fused and gelatinized at the temperature of 200-300 DEG C and a compound containing sulfur and nitrogen element compound-urea are used as raw materials; after dissolving and uniformly mixing, carrying out heating polymerization and microwave-assisted uniform dispersion; gradually converting the mixed solution into a uniform gel precursor along with the volatilization of the solvent; and grinding into powder, carrying out three-section gradient carbonization program heating carbonization treatment under the protection of inert atmosphere, and removing the template through acid pickling to obtain the target product. According to the present invention, the directional adjustment of the mesopore size and the pore size distribution is achieved, and by using the mesoporous structure as the fuel cell cathode catalyst carrier, the mass transfer path can be effectively optimized by using the high specific surface area and the adjustable mesoporous structure, and the oxygen reduction reaction activity, the polarization performance and the long-term stability can be significantly improved.