729756.fig.006a
(a)
729756.fig.006b
(b)
729756.fig.006c
(c)
729756.fig.006d
(d)
Figure 6: Permolecular structure of the pure UHMWPE (a), nanocomposite UHMWPE +0.5 wt.% HA (b) and microcomposites: UHMWPE +10 wt.% HA (c), UHMWPE +20 wt.% HA (d).