 |
 |
Conference papers
A Continuous Foaming Process of Low-Density PLA by Supercritical CO2 Assisted Extrusion
Abstract : Polylactic acid (PLA) represents probably one the most viable environmentally-sustainable alternative to petrochemical-based plastics. This paper reports the continuous processing of PLA foams with CO 2 as the blowing agent. Different operating conditions were tested for a commercial linear PLA and the obtained foams were characterized on the basis of porosity and thermal properties. Finally, foams with expansion ratio up to 95% were obtained. The importance of the operating temperatures was emphasized, what requires the use of high CO 2 fractions. Higher crystalline contents than the raw material can be obtained, this content being linked to the process conditions and thus to the porosity.
Cited literature [17 references]
https://hal-mines-albi.archives-ouvertes.fr/hal-01729581
Contributor : Jacques Fages <>
Submitted on : Monday, March 12, 2018 - 4:22:38 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:26 PM
Contributor : Jacques Fages <>
Submitted on : Monday, March 12, 2018 - 4:22:38 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:26 PM
File
Gay-Marseille-2014.pdf
Files produced by the author(s)