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Table 1 Mechanical properties and crystallinity of PLA and PLA composites

From: Polylactic acid composites incorporating casein functionalized cellulose nanowhiskers

Samples Young’s modulus (GPa) Tensile strength (MPa) Strain at break (%) Crystallinity (%) (XRD)
PLA 2.5 ± 0.2 32.8 ± 2.6 2.0 ± 0.3 47.8 ± 4.1
PLA-CNW2 2.9 ± 0.1 31.6 ± 2.3 1.4 ± 0.1 48.6 ± 0.5
PLA-CNW5 2.7 ± 0.3 27.1 ± 3.2 1.3 ± 0.1 43.2 ± 0.7
PLA-CNW10 2.9 ± 0.3 24.3 ± 3.0 1.0 ± 0.1 37.1 ± 1.8
PLA-CS-CNW2 3.0 ± 0.1 33.1 ± 1.4 1.9 ± 0.3 41.7 ± 1.3
PLA-CS-CNW5 3.2 ± 0.1 28.4 ± 3.0 1.0 ± 0.1 44.8 ± 4.4
PLA-CS-CNW10 3.5 ± 0.1 25.1 ± 2.1 0.8 ± 0.1 40.1 ± 1.3