Processing and mechanical properties of carbon nanotube-alumina hybrid reinforced high density polyethylene composites

► HDPE matrix composites reinforced by a hybrid (CNTs/Al2O3) were fabricated. ► The CNTs/Al2O3 hybrid was homogeneously dispersed in the HDPE matrix. ► Interlocking like phenomena between hybrid and HDPE was presented in the composites. ► Homogenous dispersion and interlocking interaction contributed to the effective reinforcement.