Research Article
Structural Analysis of Polyhedral Oligomeric Silsesquioxane Coated SiC Nanoparticles and Their Applications in Thermoset Polymers
Table 5
Flexure response of neat and nanofilled SC-780 epoxy cured at 25°C with postcuring.
| | Sample ID | Ultimate flexural strength (MPa) | Gain/loss in strength (%) | Average flexural modulus (GPa) | Gain/loss in modulus (%) | Average
%
strain at maximum force | Gain/loss in strain (%) |
| | Neat SC-780 | 107.7 ± 2.9 | — | 2.97 ± 0.11 | — | 4.68 ± 0.35 | — | | SC-780 + 0.5% SiC | 113.8 ± 1.2 | 5.66 | 2.965 ± 0.02 | −0.10 | 5.1 ± 0.57 | 8.97 | | SC-780 + 1% SiC | 120.6 ± 3.2 | 11.98 | 3.25 ± 0.21 | 9.43 | 4.96 ± 0.29 | 5.98 | | SC-780 + 1.5% SiC | 115.2 ± 1 | 6.96 | 3.07 ± 0.09 | 3.37 | 5.3 ± 0.07 | 13.24 | | SC-780 + 0.5% POSS OI coated SiC | 113.1 ± 1.9 | 5.01 | 3.02 ± 0.1 | 1.68 | 5.07 ± 0.23 | 8.33 | | SC-780 + 1% POSS OI coated SiC | 123.1 ± 2.8 | 14.30 | 3.34 ± 0.09 | 12.46 | 4.97 ± 0.3 | 6.2 | | SC-780 + 1.5% POSS OI coated SiC | 103.3 ± 3.7 | −4.09 | 3.04 ± 0.18 | 2.36 | 4.10 ± 0.19 | −12.4 |
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