This invention pertains to a cooling masterbatch material with electret effect and its preparation method, specifically in the field of PP cooling materials. It involves the following steps: Powder soaking: PP powder and peroxide are mixed in a mixer at a specific ratio for 60 minutes, and the mixture is then left to cool, with the mixer remaining sealed during this process; Initial mixing: The mixture is mixed using a high-speed mixer for 30 seconds; Blending: Heat stabilizers, aldehyde inhibitors, antioxidants, electret powder, and antibacterial agents are added to the mixture, and the mixture is thoroughly mixed using a high-speed mixer for 90 seconds; Extrusion molding: The mixture is extruded using a twin-screw extruder; Cooling: The extruded material strip is cooled to room temperature in a water tank; Granulation: The cooled material strip is dried and then cut into granules using a granulator. The reaction time between peroxide and polypropylene products is controlled by combining various sections of the twin-screw extruder, thereby ensuring the effect of peroxide on melt flow rate (MFR) and enhancing the performance of the PP cooling masterbatch.
Country Code: CN
Application Number: CN202311414138.1
