Preparation of Cellulose Nanofibers from Agricultural Waste Hemp by Mechanical Defibrillation

Thanaporn Subchokpool; Intatch Hongrattanavichit; Prasit Pattananuwat

doi:10.4028/p-Hm3zUk

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 955Preparation of Cellulose Nanofibers from...

Preparation of Cellulose Nanofibers from Agricultural Waste Hemp by Mechanical Defibrillation

Abstract:

In this work, cellulose hemp fibers were extracted from agricultural waste via a pretreatment process using an alkaline solution followed by a bleaching process. The high-pressure homogenization by microfluidizer was conducted to defibrillate hemp fibers into cellulose nanofibers (CNFs). The obtained products in each step of the process, including hemp raw fibers, alkaline-treated fibers, bleached fibers, and CNFs, were analyzed in terms of morphology, chemical composition, chemical structure, crystallinity, and thermal stability. SEM images revealed the successful extraction and decreased diameter with the uniform nanofiber shape. The disappearance of lignin and hemicellulose-related peaks in FTIR analysis, a decrease in their content in the chemical composition results, and an increase in the thermal stability of purified fibers indicated the success of the chemical treatment in removing noncellulosic components.

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Periodical:

Key Engineering Materials (Volume 955)

Pages:

157-162

DOI:

https://doi.org/10.4028/p-Hm3zUk

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Online since:

September 2023

Authors:

Thanaporn Subchokpool, Intatch Hongrattanavichit, Prasit Pattananuwat*

Keywords:

Agricultural Waste, Cellulose Nanofibers, Hemp, Mechanical Defibrillation

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* - Corresponding Author

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