POSIDONIA OCEANICA, DATE PALM RACHIS AND ALFA FROM TUNISIA AS SOURCES OF CELLULOSIC FIBRES
Important quantities of date palm rachis and Posidonia oceanica accumulated every year in Tunisia. The rational valorisation of these available renewable resources fits very well with recent sustainable approaches. This study is devoted to the investigation of the chemical composition of these two alternative biomasses. The amounts of extractives in different solvents, the ash content, Klason lignin, hollocellulose content as well as the amount of cellulose were determined according to standard methods. Then, soda-anthraquinone cooking was performed for the delignification of the two residues. The obtained pulps from Posidonia oceanica (40 ％ o.d of cellulose) and date palm rachis (45 ％ o.d of cellulose) were characterized: morphological properties, polymerisation degree (DP), total electrical charge as well as chemical composition were assessed. These properties were compared to the properties of a Tunisian alfa pulp that was also fully characterized. Finally, the results of this work clearly demonstrated that Posidonia oceanica and date palms rachis can be considered as a possible alternative source of fibres for cellulose derivatives and/or as lignocellulosic fibres for fibre-reinforced composite materials or papermaking application. For the Tunisian alfa pulp traditionally used in papermaking field, this study showed that new applications may also be envisaged.
alfa Posidonia oceanic date palm rachis chemical composition paper
Ramzi Khiari Zied Marrakchi Evelyne Mauret Naceur Belgacem Farouk Mhenni Habib Oueslati
LGP2 - Laboratory of Pulp and Paper Science - UMR CNRS 5518 - 461, Rue de la Papeterie -BP 65- 38402 LGP2 - Laboratory of Pulp and Paper Science - UMR CNRS 5518 - 461, Rue de la Papeterie -BP 65- 38402 Research Unity of Applied Chemistry & Environment,Department of Chemistry, Faculty of Science, Monas Research Unity of Materials Environment and Energy,Faculty of Science, Gafsa, Tunisia
国际会议
16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)
天津
英文
133-138
2011-06-08（万方平台首次上网日期，不代表论文的发表时间）