The present invention discloses a preparation method of tea seed cake bioplastic 3D printing filament, comprising the following steps: S1. Preparing secondary tea seed cake: subjecting camellia seeds to oil extraction to obtain primary tea seed cake, extracting tea saponin from the primary tea seed cake to obtain secondary tea seed cake, which is then crushed, sieved and dried in the sun; S2. Preparing mixed powder: feeding the dried secondary tea seed cake powder, PLA, PBAT modified material and fully biodegradable auxiliaries into a high-speed mixer for mixing to obtain mixed powder; S3. Preparing tea seed cake bioplastic pellets: pelletizing the mixed powder with a twin-screw extruder to obtain tea seed cake bioplastic pellets, which are then dried in an oven; S4. Preparing tea seed cake bioplastic 3D printing filament: feeding the dried tea seed cake bioplastic pellets into a single-screw extruder to prepare a filament with a wire diameter of 1.75–1.85 mm, i.e., the tea seed cake bioplastic 3D printing filament. The preparation process of the present invention is simple, and the products prepared from the tea seed cake bioplastic have the advantages of low cost, environmental friendliness, good stability, resource recycling and the like.
Country Code: CN
Application Number: CN202410260903.7
