This invention discloses a method for preparing biodegradable plastics, falling within the field of degradable plastic technology.
The specific steps are as follows: Polybutylene adipate terephthalate (PBAT) and polylactic acid (PLA) are dried in an 80°C forced-air oven for 6 hours.
PBAT, PLA, compatibilizer, modified talc, lubricant, and antioxidant are blended according to weight ratios.
The mixture is then extruded and pelletized using a twin-screw extruder to produce the biodegradable plastic.
The plastic of this invention uses PBAT and PLA as plastic matrices, both of which are biodegradable polymers. Blending PBAT and PLA compensates for their respective shortcomings.
Modified talc is incorporated into the raw materials.
After modification, the talc not only enhances interfacial compatibility with the plastic matrix and promotes uniform dispersion within the plastic, thereby improving its reinforcing effect, but also imparts safe and efficient antibacterial properties to the plastic through its grafted quaternary ammonium salts.
Country Code: CN
Application Number: CN202310281307.2
