Isolation and Characterization of Crystalline Cellulose Nanofibers (CNF’S) from Guadua Angustifolia Kunth (GAK)

Jorge Issac Fajardo Seminario, Carlos Verdugo (Co-author), César A. Paltán (Co-author), Robin Octavio Zuluaga Gallego (Co-author)

Research output: Chapter in Book/Report/Conference proceedingConference and proceedingspeer-review

Abstract

This work aims to isolate and characterize crystalline cellulose nanofibers from a tropical bamboo named guadua angustifolia. A nanofiber extraction methodology was developed that includes: i) a thermomechanical pretreatment by steam explosion, ii) an acid hydrolysis phase, and iii) a disintegration phase using a supermasscolloid grinder. The nanofibers were evaluated for their morphology (SEM) and (AFM), functional groups (FTIR), thermal degradation (TGA) and crystallinity index (XRD). The diameters of the nanofibers ranged from 20 to 60 nm. FTIR analysis determined an effective removal of functional groups characteristic of non-cellulosic compounds such as lignin and hemicellulose. The nanofibers showed greater thermal stability in relation to the microfibers. The crystallinity index was 75%, evidencing the effectiveness of the methodology to obtain crystalline nanocellulose.
Original languageEnglish
Title of host publicationProceedings of the XV Ibero-American Congress of Mechanical Engineering (IACME 2022)
Place of PublicationSingapur
PublisherSpringer
Pages91-97
Number of pages6
ISBN (Electronic)978-3-031-38563-6
ISBN (Print)978-3-031-38562-9
DOIs
StatePublished - 3 Aug 2023

Types Minciencias

  • Eventos científicos con componente de apropiación

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