Khalasa date palm leaf fiber as a potential reinforcement for polymeric composite materials

verfasst von

Elsadig Mahdi, Daniel R.Hernández Ochoa, Ashkan Vaziri, Aamir Dean, Murat Kucukvar

Abstract

The circular economy (CE) proposes a closed-loop supply chain-based production system and reduces the ecological systems' negative impacts. CE proposes a paradigm shift from a linear economy to a circular economy with the principles of 3Rs: reduce, reuse, and recycle. CE applications can be a viable option for the sustainable production of polymeric composite materials by decreasing the cost and improving product lifetimes and mechanical performance. This paper explores Khalasa date palm leaf fiber (KDPLF) as a reinforcement for polymeric composite materials. To this end, it is essential to examine their morphology, material properties, chemical composition, and water uptake. The investigated fiber was obtained from the Qatar University farm. The morphology examination was carried out using scanning electron microscopy. Thermogravimetric analysis has been used to examine the thermal stability of KDPLF. Morphological examination indicates that the lumen size for Khalasa is 32.8 ± 15.9 µm. The SEM morphology of the KDPLF cross-section showed high hemicellulose content. Tensile properties revealed that Khalasa fiber had tensile strength/tensile modulus of 47.99 ± 13.58 MPa and 2.1 ± 0.40 GPa, respectively. The results are also demonstrated that high variation in the mechanical properties and morphology was showed in KDPLF. Water uptake has significant effects on the properties of KDPLF/epoxy composite. Accordingly, as the moisture absorption of KDPLF/epoxy increases, its strength and stiffness decrease. As the moisture absorption of KDPLF/epoxy increases, its toughness increases.

Organisationseinheit(en)

Institut für Statik und Dynamik

Externe Organisation(en)

Qatar University
Northeastern University
Ministry of Municipality and Environment (MME), Qatar

Typ

Artikel

Journal

Composite structures

Band

265

ISSN

0263-8223

Publikationsdatum

01.06.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Keramische und Verbundwerkstoffe, Tief- und Ingenieurbau

Ziele für nachhaltige Entwicklung

SDG 8 – Anständige Arbeitsbedingungen und wirtschaftliches Wachstum, SDG 9 – Industrie, Innovation und Infrastruktur, SDG 12 – Verantwortungsvoller Konsum und Produktion

Elektronische Version(en)

https://doi.org/10.1016/j.compstruct.2020.113501 (Zugang: Offen)