“…Based on these values, it can be seen that these fibers exhibit lower values of densities when compared to synthetic fibers, such as carbon (1.88 g/cm 3 ), glass (2.55 g/cm 3 ) and steel (7.85 g/cm 3 ) [19] . However they are similar to those of other vegetable fibers whose values are 1.25 g/cm 3 , 1.03 g/cm 3 , 1.35 g/cm 3 , 1.45 g/cm 3 , 1.40 g/cm 3 and 1.35 g/cm 3 respectively for the coconut, palm, licuri, sisal and banana fiber 18,[20][21][22][23][24] . The low density of plant fibers is interesting for industrial because of the possibility of producing lighter weight materials, which is a key property for determining technological applications for natural fibers 6,25 .…”