综述了左旋聚乳酸的包装特性,包括力学性能、结晶性能和气体阻隔性能,讨论了左旋聚乳酸的分子取向、结晶形态、物理老化、共混和多层复合工艺对其包装特性的影响,最后提出了今后在包装领域内对PLLA 主要的工作重点以及展望。

The packaging characteristics of Poly(L-lactic acid) (PLLA) was reviewed, including mechanical, crystallization and gas barrier properties. The influence of molecular orientation, crystal habit, physical aging, blending, and multi-layer composite process of PLLA on its packaging characteristics was discussed. The working emphasis and prospects of PLLA in packaging field were put forward.