Flexibly Controlling the Polycrystallinity and Improving the Foaming Behavior of Polylactic Acid via Three Strategies
Wei Liu, Xian Wu, Xiaocheng Chen, Shan Liu, Chun Zhang
Abstract
. When the Sc crystallinity was above 10%, PLA had a superior foamability, which thereby resulted in a high foaming expansion ratio of 16.2. A variety of cellular morphologies of PLA foams could be obtained by changing the foaming temperature and the crystallization property. The proposed crystallization-induced approach provided a useful method for controlling the cellular structure and the performances of the PLA foams.
Topics & Concepts
Polylactic acidMaterials scienceComputer scienceComposite materialPolymerbiodegradable polymer synthesis and propertiesPolymer Foaming and CompositesPolymer composites and self-healing