The invention relates to a preparation method of PLA/PBS composite materials optimized through interfacial strengthening and compatibilization reaction. Dried polylactic acid (PLA), polybutylene succinate (PBS), high-efficiency compatibilizer, initiator and antioxidant are melt-blended in a twin-screw extruder to prepare polylactic acid-based composite materials. Epoxy groups in the high-efficiency compatibilizer react with terminal hydroxyl groups in the PLA/PBS blending system to regulate the microstructure of the blended components, thereby effectively improving interfacial compatibility. This process features simple operation. Compared with pure PLA/PBS blends, the modified composite exhibits superior impact strength, elongation at break and light transmittance. It is suitable for large-scale industrial production with favorable economic benefits and broad application prospects.
Area Code: CN
Application Number: CN202411776338.6
