Lignocellulosic fibers are obtained from agriculture (60%) and forests (40%)
industry. Tropical countries produce high amount of these fibers as a by-product. The
use of natural fibers is interesting due to their biodegradation capabilities as well as
their damping properties, low density and moderate strength. Hence, in the present
chapter, the facts due to which natural fibers can be used as reinforced polymers along
with the importance and role of the interfacial region will be discussed. In addition, the
effect of incorporating chopped natural fibers of different length, as disperse reinforced
phase, on the dynamic or quasi-static elastic modulus of glass fiber laminates will be
analyzed. A glass fiber composite material model used as a coir fiber effect test bed
and a simple, easy and sensitive cantilever experimental setup were validated which are
presented with comparative results.
Keywords: Composite Material, Hybrid Material, Mechanical Property.