2results about How to "Fine dispersion" patented technology

This utility model discloses a stirring device for lead-acid battery grid continuous casting molten lead, including a stirring shaft disposed in a lead melting furnace and a stirring blade assembly disposed on the stirring shaft. The stirring blade assembly includes at least two stirring blades of different sizes spaced upwards from the bottom end of the stirring shaft. The stirring shaft can be driven to rotate, causing the stirring blades to stir the molten lead in the lead melting furnace. By setting stirring blades of different sizes at different heights on the stirring shaft, the stirring blades of different sizes can make the molten lead have different stirring speeds at different depths during the stirring process, which is beneficial to enhance the convection and fine dispersion of the molten lead, and make the stirring more uniform.

The application discloses a kind of high light transmittance biobased degradable medical protective film and preparation method thereof, belong to the technical field of protective film processing, for solving the technical problems that light transmittance, puncture resistance, antibacterial property and degradable property of medical protective film in prior art need to be further improved, a kind of high light transmittance biobased degradable medical protective film, including two outer surface layers and toughening core layer between two outer surface layers, wherein the thickness of outer surface layer is 10-12 μm, the thickness of toughening core layer is 50-60 μm.The application is mainly with PBAT, PLA and cellulose, with epoxy modified PBAT as core compatibilization and toughening component, supplemented with ammoniated cellulose and antibacterial cellulose, and with the aid of three-layer co-extrusion structure to make antibacterial site obtain efficient exposure, while improving the light transmittance and puncture resistance of medical protective film, improve the antibacterial and degradable property of protective film.