High-transparency and high-ductility biaxially oriented poly-L-lactic acid film as well as raw material composition and preparation method thereof
The invention provides a high-transparency and high-ductility biaxially oriented poly-L-lactic acid film as well as a raw material composition and a preparation method thereof. The raw material composition of the film comprises: 80-100 wt% of poly-L-lactic acid (PLLA); 0-20 wt% of a toughening agent...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
14.05.2024
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention provides a high-transparency and high-ductility biaxially oriented poly-L-lactic acid film as well as a raw material composition and a preparation method thereof. The raw material composition of the film comprises: 80-100 wt% of poly-L-lactic acid (PLLA); 0-20 wt% of a toughening agent; the chain extender accounts for 5wt% or less of the mass sum of the PLLA and the toughening agent, the plasticizer accounts for 10wt% or less of the mass sum of the PLLA and the toughening agent, and the nucleating agent accounts for 5wt% or less of the mass sum of the The invention also provides a preparation method of the PLLA film, which comprises the following steps: uniformly mixing the raw material composition, and carrying out casting extrusion to obtain a PLLA casting sheet; and carrying out two-way stretching on the casting sheet to obtain the PLLA film. The invention also provides the PLLA film prepared by the method. The high-transparency and high-ductility biaxially oriented PLLA film can solve the pr |
---|---|
Bibliography: | Application Number: CN202410226679 |