Starch-Based Biofoams Reinforced with Lignocellulose Nanofibrils from Residual Palm Empty Fruit Bunches: Water Sorption and Mechanical Strength

Mariko Ago*, Ana Ferrer, Orlando J. Rojas

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)

Abstract

Lignin-containing cellulosic nanofibrils (LCNF) were extracted from residual oil palm empty fruit bunches (EFB), an abundant but underutilized bioresource, by using a set of sulfur-free fractionation methods. The various types of isolated LCNF were used to reinforce starch-based biofoams. The incorporation of LCNF achieved remarkable increases, by a factor of 44 and 66, of the Young's modulus and yield stress in compression mode, respectively. In addition, owing to the relatively lower hydrophilicity of residual lignin, water sorption by the composite biofoams was reduced with LCNF loading. The starch/LCNF nanocomposite biofoams displayed mechanical properties similar to those of polystyrene foams and therefore can potentially represent a sustainable and green alternative for packaging and insulation materials.

Original languageEnglish
Pages (from-to)5546-5552
Number of pages7
JournalACS Sustainable Chemistry and Engineering
Volume4
Issue number10
DOIs
Publication statusPublished - 3 Oct 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Aerogel
  • Cellulose nanofibrils
  • CNF
  • EFB
  • Empty palm fruit bunch fibers
  • Foams
  • Hydrophobicity
  • Lignocellulose
  • Water sorption

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