Official Journal of the Japan Wood Research Society
Table 1 Mechanical properties of all-cellulose composite films: (a) Young’s modulus, (b) tensile strength, and (c) elongation at break with standard deviation
TOCN content (%) | Draw ratio | ||
|---|---|---|---|
Undrawn | ×1.5 | ×2.0 | |
(a) Young’s modulus (GPa) | |||
0 | 6.0 ± 0.3 | 11.5 ± 1.2 | 13.2 ± 1.3 |
10 | 6.6 ± 0.6 | 11.4 ± 0.7 | 12.7 ± 1.3 |
20 | 6.7 ± 0.5 | 11.3 ± 0.9 | 13.2 ± 0.8 |
30 | 6.8 ± 0.5 | 11.6 ± 1.1 | 13.9 ± 1.4 |
40 | 6.7 ± 0.3 | 10.1 ± 0.8 | 12.3 ± 0.2 |
50 | 6.5 ± 0.6 | 9.7 ± 0.5 | 12.1 ± 1.3 |
(b) Tensile strength (MPa) | |||
0 | 155.0 ± 4.2 | 294.7 ± 15.9 | 307.0 ± 18.9 |
10 | 153.7 ± 3.1 | 265.1 ± 16.1 | 290.0 ± 5.5 |
20 | 160.5 ± 4.4 | 269.8 ± 19.7 | 299.7 ± 7.7 |
30 | 160.1 ± 10.1 | 238.4 ± 21.8 | 317.3 ± 11.9 |
40 | 129.1 ± 4.2 | 239.6 ± 8.8 | 257.6 ± 10.6 |
50 | 114.8 ± 2.5 | 235.7 ± 7.9 | 207.6 ± 19.1 |
(c) Elongation at break (%) | |||
0 | 27.1 ± 2.5 | 11.1 ± 0.3 | 5.0 ± 0.5 |
10 | 26.3 ± 0.3 | 11.4 ± 1.5 | 5.0 ± 0.5 |
20 | 26.9 ± 3.1 | 10.8 ± 0.5 | 5.1 ± 0.5 |
30 | 20.5 ± 1.7 | 8.0 ± 1.0 | 4.4 ± 0.8 |
40 | 11.2 ± 0.8 | 7.4 ± 2.4 | 4.5 ± 0.4 |
50 | 8.7 ± 0.8 | 7.7 ± 0.7 | 3.5 ± 0.2 |