Enhanced both in-plane and through-thickness thermal conductivity of carbon fiber/epoxy composites by fabricating high thermal conductive coaxial PAN/PBO carbon fibers

PAN-based carbon fibers (PAN-CFs) have been widely used as structural reinforcements of various advanced composites due to their excellent mechanical properties. However, PAN-CFs have no obvious superiority in terms of the heat dissipation ability compared to mesophase pitch-based CFs and vapor grown CFs. In the present work, Poly-p-phenylene benzobisoxazole (PBO) macromolecules, which could contribute to the development of highly ordered...