which has a great potential in the application of tableware
packaging
spinning
biomedical devices and 3D printing. However
the melt strength of PLA is extremely low
leading to its bad processing properties in the extensional flow based processing methods
such as foaming
melt spinning
film blowing
thermal forming
and so on. Thus
the improvement of the melt strength of PLA is important for extensional flow based processing methods. This paper reviews recent progress on PLA with high melt strength