Superabsorbent hydrogel from oil palm empty fruit bunch cellulose and sodium carboxymethylcellulose

Kushairi Mohd Salleh, Sarani Zakaria, Sajab Mohd Shaiful, Sinyee Gan, Hatika Kaco

Research output: Contribution to journalArticle

Abstract

A green regenerated superabsorbent hydrogel was fabricated with mixtures of dissolved oil palm empty fruit bunch (EFB) cellulose and sodium carboxymethylcellulose (NaCMC) in NaOH/urea system. The formation of hydrogel was aided with epichlorohydrin (ECH) as a crosslinker. The resultant regenerated hydrogel was able to swell >80,000% depending on the NaCMC concentrations. The hydrogel absorbed water rapidly upon exposure to water up to 48 h and gradually declined after 72 h. The crosslinked of covalent bond of C–O–C between dissolved EFB cellulose (EFBC) with NaCMC was confirmed with Attenuated total reflectance Fourier transform infrared (ATR-FT-IR) spectroscopy. Crystallinity and thermal stability of the hydrogel samples were depended on the concentrations of NaCMC, crosslinking, and swelling process. The strength and stability of crosslinked network was studied by examining the gel fraction of hydrogel. This study explored the swelling ability and probable influenced factors towards physical and chemical properties of hydrogel.

Original languageEnglish
Pages (from-to)50-59
Number of pages10
JournalInternational Journal of Biological Macromolecules
Volume131
DOIs
Publication statusPublished - 15 Jun 2019

Fingerprint

Carboxymethylcellulose Sodium
Palm oil
Hydrogel
Fruits
Hydrogels
Cellulose
Fruit
Oils
Sodium
Swelling
Epichlorohydrin
Covalent bonds
Water
Fourier Transform Infrared Spectroscopy
Urea
Crosslinking
Chemical properties
Fourier transform infrared spectroscopy
Thermodynamic stability
Gels

Keywords

  • Osmotic pressure
  • Pre-cool
  • Water absorption

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • Molecular Biology

Cite this

Superabsorbent hydrogel from oil palm empty fruit bunch cellulose and sodium carboxymethylcellulose. / Salleh, Kushairi Mohd; Zakaria, Sarani; Mohd Shaiful, Sajab; Gan, Sinyee; Kaco, Hatika.

In: International Journal of Biological Macromolecules, Vol. 131, 15.06.2019, p. 50-59.

Research output: Contribution to journalArticle

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