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Extrusion Foaming of Semi-Crystalline PLA and PLA/Thermoplastic Starch Blends

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Academic year: 2021

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Figure 1. Viscosity of PLA, PLA-g-MA and TPS at 180 8 C. Data for PLA is the complex viscosity as a function of frequency
Figure 4. CO 2 solubility as a function of pressure in PLA and TPS at 180 8C. The dotted lines represent experimental data obtained from extruder in-line measurements, while the solid line is from Sato et al
Figure 5. Variation of PLA foam density as a function of CO 2 concentration. TPS concentration (wt%)010203040 50 60Density (kg/m3)0501001502002503003500%20% 50% 100% PLA-g-MA withinPLA phase
Figure 9. SEM micrographs showing: (a) one ruptured cell wall;
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