Poly (lactic acid) was linear aliphatic thermoplastic polyester and environmentally benign material
which attracts many researchers to widely research.In this paper
according to the biodegradable properties of the other composition in the blends
poly(lactic acid) blends were divided into two varieties of fully biodegradable blends and partially biodegradable blends.And the progress of poly(lactic acid) blends was reviewed
based on the miscibility
the crystal structures
the improvements of properties and the lowered costs
etc.Their advance in the future was also introduced briefly.