Valorisation des déchets cellulosiques tunisiens

Abstract : Many cellulosic sources are available in Tunisia in large quantities such as agricultural waste (vine stems) and marine residues (Posidonia oceanica leaves and balls). Their valorization presents an interesting activity to produce new products and bio-based biomass materials. The present work deals with the preparation, characterization and application of nanocellulose. In fact, different qualities of nanocellulose, namely cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) were produced and characterized by various methods. The objective was to better understand the structure and morphology of the nanofibers obtained from both plants. Finally, various nanocomposites were prepared using the cellulose nanocrystals and cellulose nanofibrils as reinforcing element in polyacrylate polymer as matrix. The obtained results were compared with those reported for other sources such as annual plants and wood. It has been shown that nanocellulose from Posidonia oceanica and vine stem can be used as a new alternative nanoreinforcing source in nanocomposite applications.
Complete list of metadatas

Cited literature [131 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01247661
Contributor : Abes Star <>
Submitted on : Monday, January 4, 2016 - 11:04:06 AM
Last modification on : Thursday, March 7, 2019 - 11:46:54 AM
Long-term archiving on : Thursday, April 7, 2016 - 4:38:01 PM

File

BETTAIEB_2015_archivage.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01247661, version 1

Collections

STAR | LGP2 | UGA

Citation

Fédia Bettaieb. Valorisation des déchets cellulosiques tunisiens. Génie des procédés. Université Grenoble Alpes, 2015. Français. ⟨NNT : 2015GREAI059⟩. ⟨tel-01247661⟩

Share

Metrics

Record views

914

Files downloads

1088