A New Approach for Conversion of Eucalyptus Lignocellulosic Biomass into Cellulose Nanostructures: A Method that Can Be Applied in Industry

ABSTRACT

This study aimed to explore the use of eucalyptus sawdust for the extraction of nanocellulose. This residue was purified with a three-steps pretreatment and ball milled for the isolation of nanocellulose. The method proposed can be industrially applied due to the use of reactor and ball mill and can be used for a variety of cellulose sources. Cellulose was the main component detected in the eucalyptus residues, as observed after the characterizations. The nanostructures showed an average size of 192 nm and high crystallinity and thermal stability. The current study demonstrated that the nanocellulose could be obtained to commercial-scale applications.

摘要

本研究旨在探索利用桉树锯末提取纳米纤维素的方法. 该残渣经三步预处理和球磨分离得到纳米纤维素. 由于反应器和球磨机的使用，该方法可以工业化应用，并可用于多种纤维素来源. 纤维素是桉树渣中的主要成分. 纳米结构的平均尺寸为192nm，具有较高的结晶度和热稳定性. 目前的研究表明，纳米纤维素可以获得商业规模的应用.

KEYWORDS:

• Bio-residue
• cellulose nanostructures
• morphology
• chemical composition
• crystallinity

关键词:

• 生物残渣
• 纤维素纳米结构
• 形态学
• 化学成分
• 结晶度

Acknowledgments

The authors thank the UFABC, REVALORES Strategic Unit, CNPq (nº 306401/2013-4) and Multiuser Central Facilities (UFABC).

Additional information

Funding

This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico [306401/2013-4].