Skip to main content
. 2018 Oct 11;13(10):e0205722. doi: 10.1371/journal.pone.0205722

Table 2. Mechanical data obtained from experimental curves.


Young’s modulus Elastic limit Yield stress Elastic strain Maximum load Ultimate Tensile Stress Ultimate strain
MPa MPa MPa % N MPa %
Bundles with strain rate of 0.06 mm/s 1400 ± 92 163.05 ± 7.99 - 13.65 ± 1.00 59.58 ± 1.25 313.49 ± 6.57 81.96 ± 3.22
Bundles with strain rate of 0.10 mm/s 1482 ± 39 158.33 ± 0.61 - 12.10 ± 0.17 59.21 ± 1.68 311.51 ± 8.84 83.84 ± 5.38
Bundles with strain rate of 0.17 mm/s 1398 ± 96 168.56 ± 10.04 - 13.05 ± 1.14 59.67 ± 1.86 313.92 ± 9.79 78.86 ± 4.61
Bundles with strain rate of 0.50 mm/s 1506 ± 71 170.45 ± 8.98 - 12.79 ± 0.58 61.29 ± 0.71 322.47 ± 3.72 84.54 ± 2.86
Bundles with strain rate of 0.83 mm/s 1547 ± 60 179.44 ± 11.24 - 13.36 ± 1.32 - - -
Crude bundles 1400 ± 92 163.05 ± 7.99 246.69 ± 7.94 13.65 ± 1.00 59.58 ± 1.25 313.49 ± 6.57 81.96 ± 3.22
Bundles without spin finish 1404 ± 110 159.36 ± 5.10 246.3 ± 5 13.21 ± 0.40 58.63 ± 2.62 308.47 ± 13.78 76 ± 6.8
Bundles after ozonation 1324 ± 45 160.20 ± 6.60 249.41 ± 2.03 16.06 ± 0.79 59.34 ± 1.42 312.20 ± 7.45 91.08 ± 5.64
Bundles after thermal treatment without pNaSS 1098 ± 82 150.20 ± 6.49 239.36 ± 8.12 18.67 ± 1.05 55.74 ± 2.20 293.25 ± 11.56 92.62 ± 8.33
Bundles after thermal grafting 1125 ± 49 161.42 ± 11.24 237 ± 11 18.80 ± 1.32 53.21 ± 2.67 279.98 ± 14.06 74.88 ± 10.84
Bundles after UV grafting 1301 ± 49 133.30 ± 10.28 226 ± 7 12.65 ± 0.97 52.60 ± 1.40 276.74 ± 7.36 77.89 ± 1.78
Bundles after thermal grafting + β sterilization 1258 ± 51 126.05 ± 8.91 199.50 ± 3.35 15.40 ± 1.40 41.40 ± 0.61 217.80 ± 3.23 78.50 ± 4.23