A preparation method of a high‑temperature resistant carbon dioxide‑based biodegradable foaming material belongs to the technical field of polymer foaming materials. The raw materials by weight are: PPCHC 60–99 parts, nucleating agent 0.5–5 parts, filler 0.1–10 parts, coupling agent 0.1–5 parts, foaming agent 0.05–0.5 parts. After mixing the above raw materials, extrusion foaming is carried out by a series connection of a twin‑screw extruder and a single‑screw extruder to form beads, and then the beads are further foamed and molded to obtain the product. The foaming material of the present invention has excellent physical properties, good toughness, strong puncture resistance and soft texture, and can provide better protection when packaging easily bumped materials such as fruits.
Country Code: CN
Application Number: CN202410030075.8
