Wood versus Plant Fibers: Similarities and Differences in Composite Applications
Figure 6
Types of porosity in cellulose fiber composites. Shown are cross-sectional images of unidirectional hemp fiber/polyethylene terephthalate composites. The optical microscope image in (a) shows a hemp fiber yarn, and the scanning electron microscope image in (b) shows a close-up of the fibers in the yarn [62].
