Extraction, modification, and characterization of natural ligno-cellulosic fiber strands from napier grass

V.P. Kommula, K.O. Reddy, M. Shukla, T. Marwala, E.V.S. Reddy, A.V. Rajulu

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Napier grass is a high-productivity perennial grass that is a very important forage for animals in the tropics. In this research work, fiber strands from Napier grass were extracted and the effect of acetic acid treatment on their chemical composition, morphological and structural changes, and tensile and thermal properties was studied. The acid treatment was carried out using glacial acetic acid solution at three different concentrations (5, 10, and 15%) for 2 h. Chemical analysis indicated lowering of amorphous hemicellulose content on acid treatment. FT-IR spectroscopic studies revealed variation of functional groups on acid treatment. Scanning electron micrographs indicated roughening of the surface of the fiber strands due to the removal of the hemicellulose layer on acid treatment. X-ray diffraction analysis indicated an increase in crystallinity of the fiber strands on acid treatment. The thermal stability and tensile properties of the fiber strands increased on acid treatment. This fiber has competitive advantages when evaluated with other natural fibers and can be developed further as a potential reinforcement in polymer matrix composites. © 2016, Copyright © Taylor & Francis Group, LLC.
Original languageUndefined/Unknown
Pages (from-to)18-28
Number of pages11
JournalInternational Journal of Polymer Analysis and Characterization
Issue number1
Early online date11 Sep 2015
Publication statusPublished - 2016

Bibliographical note

cited By 1


  • Acetic acid
  • Cellulose
  • Chemical modification
  • Competition
  • Fibers
  • Natural fibers
  • Organic acids
  • pH
  • Polymer matrix composites
  • Scanning electron microscopy
  • Spectroscopic analysis
  • Structural properties
  • Tensile properties
  • Thermoanalysis
  • X ray diffraction analysis, Acetic acid treatment
  • Chemical compositions
  • Competitive advantage
  • Glacial acetic acid
  • High productivity
  • Ligno-cellulosics
  • Scanning electron micrographs
  • Spectroscopic studies, Chemical analysis

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