Abstract
ABSTRACT The Ampelodesmos mauritanicus plant, Mauritanian grass or also called ‘Diss’, is a perennial abundant plant on the Mediterranean contour, having attractive characteristics for ecofriendly materials. This work aims to highlight the potential of the Diss fibers elements by assessing their use as reinforcement for polymer matrices (bio-composite). So, untreated and treated Diss fibers by chemical (soda, silane and acetic acid) and thermal treatment have been manually extracted and characterized to evaluate their surface condition as well as their chemical composition, their mechanical properties and their thermal stability. The obtained results have shown many advantages look promising for such an application, especially the fact that the Diss fiber bundles has small diameter (89 ± 22 μm), a rough surface with the presence of thorns, a low density of 0.93 g/cm3, and a tensile strength that can reach 270 MPa. Furthermore, all the treatments adopted have shown improvements regarding the fibrillation of fiber bundles (could reach −40% for the diameter), their surface state, their thermal stability and their mechanical behavior (could reach +60% for Young’s modulus and +15% for tensile stress).
Highlights
The depletion of resources and global warming have pushed all industries to adopt a green and more sustainable production
The measured density of untreated Technical Fiber of Diss (UTFD) was 0.93 ± 0.01 g/cm3, similar to the value found by Bourahli and Osmani (2013); 0.89 g/cm3
This work aims to highlight the potential of the Diss fibers elements by assessing their use as reinforcement for polymer matrices
Summary
The depletion of resources and global warming have pushed all industries to adopt a green and more sustainable production. Mauritanian grass, Diss, or Ampelodesmos mauritanicus, is a plant species of the family Poaceae (Damerdji 2012). This herbaceous perennial plant can reach two to three meters high, is rich in fibers, robust with acuminate leaves and it grows as tufts in more or less dry soils (Damerdji 2012; Rameau, Mansion, and Dumé 1989). It was formerly used to build the roofs of old houses thanks to their mechanical and hydrous qualities (Bourahli 2014) The exploitation of these wild plant fibers as a reinforcement to cementitious composites is little studied in the literature and rarely studied for polymer composites
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