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. 2022 Jul 3;14(13):2721. doi: 10.3390/polym14132721

Table 5.

Dynamic mechanical properties of compression molded sheets and 3D printed samples.

Sample E’ (GPa) at 40 °C E’ (GPa) at 60 °C E” (MPa) 1 Tg, Tan δ 2 (°C) Tan δ 2 N (mol/m3) A C r
PLA-N-C 2.91 0.48 0.38 65.6 2.33 2.89 × 104
PLA-N-B45 2.65 0.46 0.35 65.6 1.74 2.76 × 104
PLA-N-B60 2.56 0.38 0.37 65.0 1.42 2.31 × 104
PLA-P-C 3.21 0.43 0.38 65.8 2.47 2.58 × 104 0.12 1.23 2.01
PLA-P-B45 2.66 1.07 0.45 64.4 0.76 6.41 × 104 0.43 0.02
PLA-P-B60 2.72 1.24 0.39 63.2 0.43 7.48 × 104 0.33 1.23
PLA-CF-C 5.00 0.77 0.75 64.8 1.77 4.63 × 104 −0.12 1.07 5.13
PLA-CF-B45 5.56 1.32 0.73 65.9 1.66 7.93 × 104 0.73 7.82
PLA-CF-B60 5.68 1.38 0.92 65.6 1.52 8.29 × 104 0.61 8.72
PLA-Cu-C 3.13 0.62 0.48 64.7 1.19 3.73 × 104 0.52 0.83 0.12
PLA-Cu-B45 1.57 0.74 0.26 65.2 0.65 4.45 × 104 0.37 −0.62
PLA-Cu-B60 1.74 0.99 0.26 64.5 0.41 5.96 × 104 0.26 −0.49

1 Peak of loss modulus. 2 Peak of Tan δ.