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. 2016 Mar 16;8(3):87. doi: 10.3390/polym8030087

Figure 3.

Figure 3

Multilayered sample structures used in SPD measurements: (a) NC/NC; (b) Ref/NC(G); and (c) NC/Ref(G). Ref and NC denote respectively the reference LDPE and LDPE/Al2O3 3 wt % nanocomposite whereas index (G) indicates the layer in contact with the grounded copper plate during the test.