The present invention relates to a method for preparing PLA/PCL biodegradable modified materials, which comprises the following steps: mixing dried PLA, PCL, nano fillers and other additives evenly, adding them to a twin-screw extruder for melt blending, and obtaining modified PLA/PCL biodegradable materials.
The additive used in the present invention is a green, safe, non-toxic and harmless bio based additive, which enhances the intermolecular forces between PLA and PCL phases.
At the same time, nano fillers have a larger specific surface area and more surface active centers.
The addition of a small amount of nano fillers regulates the microstructure of the PLA/PCL incompatible system, further improving the compatibility between the two.
The process of the present invention has strong operability, and the resulting blend has excellent impact strength, elongation at break, and light transmittance compared to pure PLA/PCL blend.
It is easy to industrialize and produce on a large scale, with good economic benefits and broad application prospects.
Country Code: CN
Application Number: CN202311757831.9
