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Molecules 2018, 23(9), 2088; https://doi.org/10.3390/molecules23092088

All-lignocellulosic Fiberboard from Steam Exploded Arundo Donax L.

1
Department of Mechanical Engineering, Rovira i Virgili University, Avinguda dels Països Catalans 26, 43007 Tarragona, Spain
2
Department of Chemistry, Faculté Polydisciplinaire, Sultan Moulay Slimane University, Mghila BP.592, Béni-Mellal 23000, Morocco
3
Laboratory of Biological Engineering, Faculté des Sciences et Techniques, Sultan Moulay Slimane University, Mghila BP.523, Béni-Mellal 23000, Morocco
4
Department of Chemical Engineering, Rovira i Virgili University, Avinguda dels Països Catalans 26, 43007 Tarragona, Spain
*
Authors to whom correspondence should be addressed.
Received: 15 July 2018 / Revised: 10 August 2018 / Accepted: 15 August 2018 / Published: 21 August 2018
(This article belongs to the Special Issue Lignin for Energy, Chemicals and Materials)
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Abstract

This paper explores the possibility of producing all-lignocellulosic fiberboards from Arundo donax L. as a source of lignocellulosic fibers with no synthetic binders. This raw material was steam exploded with a thermomechanical aqueous vapor process in a batch reactor. The Arundo donax raw material and its obtained pulp were characterized in terms of chemical composition and the results were compared to other lignocellulosic materials. The chemical composition of steam exploded Arundo fibers showed high cellulose and a moderate lignin content suggesting it was a good raw material for fiberboard production. The all-lignocellulosic fiberboards were produced on laboratory scale; using the steam exploded Arundo donax by means of a wet process. The effects of pressing pressure on physical and mechanical properties were evaluated and the conditions that optimize the responses were found. The analyzed properties were density (d); water absorption (WA); thickness swelling (TS); modulus of elasticity (MOE); modulus of rupture (MOR); and internal bond strength (IB). The tested levels of the pressing pressure range from 0.35 to 15 MPa. The optimum IB; MOE; MOR; WA and TS were 1.28 MPa, 7439 MPa, 40.4 MPa, 17.6% and 13.3%, respectively. The obtained fiberboards were of very good quality and more than satisfy the requirements of the relevant standard specifications. View Full-Text
Keywords: all-lignocellulosic; binderless; fiberboards; Arundo donax L.; steam explosion; water resistance; mechanical properties all-lignocellulosic; binderless; fiberboards; Arundo donax L.; steam explosion; water resistance; mechanical properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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MDPI and ACS Style

Ramos, D.; El Mansouri, N.-E.; Ferrando, F.; Salvadó, J. All-lignocellulosic Fiberboard from Steam Exploded Arundo Donax L.. Molecules 2018, 23, 2088.

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