Research Article
Effect of Nanocomposite Structures on Fracture Behavior of Epoxy-Clay Nanocomposites Prepared by Different Dispersion Methods
Table 2
Property of epoxy nanocomposites containing various concentrations of I.30E clay.
| Filler matrix loading (wt%)a | Tensile modulus (GPa) | Tensile strength (MPa) | Elongation (%) | Fracture toughness (MPa·m0.5) | Strain energy (J/m2) | Glass transition temp. (°C) |
| 0 (neat epoxy) | 2.82 ± 0.08 | 82.2 ± 1.56 | 8.53 ± 0.16 | 0.78 ± 0.05 | 235 ± 28 | 117 | 1 wt% I.30E (U) | 3.25 ± 0.04 | 84.7 ± 1.56 | 6.12 ± 0.5 | 0.79 ± 0.03 | 225 ± 11 | 115 | 2 wt% I.30E (U) | 3.23 ± 0.04 | 80.6 ± 2.78 | 5.51 ± 0.97 | 0.81 ± 0.05 | 245 ± 12 | 114 | 3 wt% I.30E (U) | 3.36 ± 0.03 | 76.7 ± 3.51 | 4.08 ± 0.56 | 0.77 ± 0.01 | 230 ± 9 | 112 | 1 wt% I.30E (M) | 2.84 ± 0.03 | 72.8 ± 3.5 | 4.8 ± 0.75 | 0.78 ± 0.04 | 240 ± 26 | 113 | 2 wt% I.30E (M) | 2.92 ± 0.02 | 69.8 ± 0.42 | 3.96 ± 0.07 | 0.83 ± 0.04 | 265 ± 30 | 113 | 3 wt% I.30E (M) | 2.97 ± 0.01 | 69.1 ± 1.19 | 3.78 ± 0.17 | 0.93 ± 0.06 | 320 ± 32 | 114 |
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U: ultrasonic mixing; M: mechanical mixing.
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