Extrusion Foaming of Semi-Crystalline PL
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Mihaela Mihai; Michel A. Huneault; Basil D. Favis; Hongbo Li
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Article
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2007
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John Wiley and Sons
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English
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## Abstract Low density openβcell foams were obtained from polylactic acid (PLA) and from blends of PLA with thermoplastic starch (TPS) using CO~2~ as a blowing agent. Two unexpected features were found. First, a 2D cavitation process in the fractured cell walls was unveiled. Elliptical cavities wi