138 Green Composites from Natural Resources
envisioned applications where weight is one of the design factors. The above values
are the rst points of reference when considering the tensile properties of NFCs.
When the perfect interphase bond, lack of defects, misalignments, and porosities
are achieved, this difference would be decreased in regard to the Vf. Substantial
work was done on the tensile strength of different types of ax and hemp compos-
ites, and this is used to evaluate changes in composition, treatments, or processing
improvements.
Laminates reinforced with bers or mats are processed by compression molding,
vacuum-assisted techniques, pultrusion, and extrusion. The most popular processing
technique for randomly oriented mats a ...