Fig. 4From: Transcrystalline growth of PLLA on carbon fiber grafted with nano-SiO2 towards boosting interfacial bonding in bone scaffoldPOM images of (a) PLLA, (b) PLLA/CF, (c) CF-SiO2–1, (d) CF-SiO2–2 and (e) CF-SiO2–3 after holding for 3, 6, 9 and 12 min at 135 °CBack to article page