It was also possible to determine the degree of crystallinity of the PP and for the PP in the PP/GNP nanocomposites from the areas under the PP peaks in the WAXD patterns []. The values determined are shown in Table 1 and it can be seen that there is a small but significant increase in the degree of crystallinity with GNP loading in the nanocomposites. Fig. 2. The XRD diffraction patterns of PP/GNP nanocomposites for different GNP loadings. Table I. Summary of the microstructural characterization and mechanical properties of the PP/GNP nanocomposites for different levels of GNP loading. Nanocomposites (PP/GNP) Nominal 1.0 3.0 5.0 10.0 loading (wt%) Actual 1.2 ± 4.0 ± 5.5 ± 12.0 loading (wt%) 0.1 0.1 0.2 ± 0.2 Actual 0.5 ± 1.7 ± 2.3 ± 5.2 ± loading 0.04 0.05 0.1 0.1 (vol%)
It was also possible to determine the degree of crystallinity of the PP and for the PP in the PP/GNP nanocomposites from the areas under the PP peaks in the WAXD patterns []. The values determined are shown in Table 1 and it can be seen that there is a small but significant increase in the degree of crystallinity with GNP loading in the nanocomposites. Fig. 2. The XRD diffraction patterns of PP/GNP nanocomposites for different GNP loadings. Table I. Summary of the microstructural characterization and mechanical properties of the PP/GNP nanocomposites for different levels of GNP loading. Nanocomposites (PP/GNP) Nominal loading (wt%) 1.0 3.0 5.0 10.0 Actual loading (wt%) 1.2 ± 0.1 4.0 ± 0.1 5.5 ± 0.2 12.0 ± 0.2 Actual loading (vol%) 0.5 ± 0.04 1.7 ± 0.05 2.3 ± 0.1 5.2 ± 0.1
Siti_1Final_Revised2.docx