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All samples tested at 1 mm/min ( = 5 × 10−1 min−1) and extruded at 190 °C. Transversal view of PLA at: (a) 1 day of ageing, (b) 10 days of ageing, (c) 49 days of ageing, (d) 98 days of ageing, (e) 125 days of ageing, and (f) 366 days of ageing.
