The progress in the process and modification of PLA is discussed, and the requirement for the property of PLA for molding, extrusion filature, blowing film is mentioned.

• 论述了聚乳酸加工和改性的进展情况，列举了用于注塑、挤出纺丝、挤出吹膜等加工所需聚乳酸的性能要求以及聚乳酸的应用进展情况。