Aislamiento y Caracterización de Nano Fibras de Celulosa Cristalina (CNF´S) a Partir de Guadua Angustifolia Kunth (GAK)

Translated title of the contribution: Isolation and Characterization of Crystalline Cellulose Nano Fibers (CNF'S) from Guadua Angustifolia Kunth (GAK)

Jorge Isaac Fajardo Seminario, Carlos Oswaldo Verdugo Cabrera, Cesar Antonio Paltan Zhingre, Robin Zuluaga

Research output: Contribution to conferencePaper

Abstract

This work is aimed to isolate and characterize crystalline cellulose nanofibers from a tropical species of 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.
Translated title of the contributionIsolation and Characterization of Crystalline Cellulose Nano Fibers (CNF'S) from Guadua Angustifolia Kunth (GAK)
Original languageSpanish (Ecuador)
StatePublished - 24 Nov 2022
EventXV Congreso Iberoamericano de Ingeniería Mecánica (CIBIM 2022) - ES
Duration: 22 Nov 202224 Nov 2022

Conference

ConferenceXV Congreso Iberoamericano de Ingeniería Mecánica (CIBIM 2022)
Period22/11/2224/11/22

Keywords

  • Characterization
  • Guadua.
  • Nanocellulose
  • Natural fibers

CACES Knowledge Areas

  • 227A Materials

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