The ‘wood’ of oil palm trunks consists of primary vascular bundles embedded in
parenchyma ground tissues; such ‘wood’ plays an important role in the strengthening
mechanism of composites when stress was transferred between the matrix (resin) and
fibers. The highly porous morphology of dried oil palm trunks helps the resin to be
located and filled within the void space, which will improve the characteristics of OPT
polymer composite.