Journal of Bionic Engineering

July 2019, Volume 16, Issue 4, pp 754–767| Cite as

Wafa Ouarhim,Hamid Essabir,Mohammed-Ouadi Bensalah,Denis Rodrigue,Rachid Bouhfid,Abou el kacem Qaiss

1.Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR)Composites and Nanocomposites Center (CNC),Rabat,Morocco

2.Faculty of Science, Laboratory of Mechanic and Materials (LMM)Mohammed V-Rabat, University,Rabat,Morocco

3.National School of Applied Science (ENSA)Ibn Zohr University-Agadir,grandir,Morocco

4.Department of Chemical Engineering and CERMA,Université Laval,Quebec,Canada

Abstract

The main objective of this investigation is to valorize a Moroccan crop residue (Sabra fibers, Agave Americana L.) and to compare with Alfa fibers (Stipa tenacissima L.) as reinforcement in an elastomeric matrix in term of the relaxation properties, mechanical and rheological properties. The preparation and properties of these two natural fibers embedded in Styrene-Butadiene Rubber (SBR) are presented with and without the addition of Styrene-Ethylene-Butadiene-Styrene grafted with Maleic Anhydride (SEBS-g-MA) as a coupling agent. Five different series (SBR, SBR/Alfa, SBR/Alfa/SEBS, SBR/Sabra and SBR/Sabra/SEBS) were compounded by extrusion and compression molding. As a result, the addition of the coupling agent in the elastomeric matrix improves the relaxation properties, mechanical and rheological properties. Moreover, Sabra fibers show the good results compared to Alfa fibers. Finally, the Zener model was used to determine the rheological time response of the composites. A good agreement between the experimental data and the model was observed (R2 = 0.99).Keywords

Sabra fibers Alfa fibers SBR biocomposite relaxation mechanical and rheological properties Zener model 

Full text is available at :

https://link.springer.com/article/10.1007/s42235-019-0061-0