“…8,9 Lately, the need to adapt to economic constraints and the appearance of new terms such as sustainable development, green chemistry, and industrial ecology lead to the development of new composite materials and hybrid composites reinforced by natural elements. 10 These bio-fillers derived from plant origin such as flax, hemp, wood, alfa, coconut, henna, cotton hulls, pine cones, etc., [11][12][13][14][15][16][17][18] mineral origin including clay, brucite, basalt, talc, chalk..., 5,[19][20][21] or from the animal origin as horn, silk, etc. 22,23 This new generation of materials has shown improved mechanical properties, reduced weight, and/or cost.…”