1. Main materials: starch, polycaprolactone (PCL), polysuccinate (PBS), polylactic acid (PLA), ethylene-acrylic acid copolymer (EEA) bentonite, photo-oxidative degradation materials, processing Auxiliaries, etc. 2.Equipment manufacturing: The above materials are put into the high-speed mixer specially made by Juli under the set temperature and time in proportion and order, and the materials are subjected to surface treatment and modification technology so that the materials are fully mixed and Compatible; and then mixed, plasticized and pelletized by Biodegradable Granules Pelletizing Extruder to make various biocomposite degradation materials.