The present invention discloses a high-temperature resistant foamed polypropylene masterbatch and its preparation method, falling within the field of new materials technology. The high-temperature resistant foamed polypropylene masterbatch comprises the following components by weight: polypropylene resin: 70–90 parts; silicate: 5–20 parts; compatibility aid: 3–5 parts; foam stabilizer: 2–5 parts. The preparation method comprises: S1. Preparing materials according to the composition and ratios of the high-temperature resistant foamed polypropylene masterbatch and mixing for 10–15 minutes to obtain a mixture; S2. Melting and blending the mixture using a twin-screw extruder, followed by extrusion into strands, water cooling, pelletizing, drying, and screening to obtain the high-temperature resistant foamed polypropylene masterbatch. The high-temperature resistant foamed polypropylene masterbatch disclosed herein exhibits excellent high-temperature resistance, meeting application requirements in automotive, construction, and other fields.
Country Code: CN
Application Number: CN202211012488.0
