Effect of micro-and nano-size of cellulose particles extracted from rice husk on the properties of hydrogels

Wan Hafizi Wan Ishak, Ooi Shok Yin, Ishak Ahmad

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effects of different size of cellulose particles extracted from rice husk on the properties of gelatin/cellulose hydrogels were studied. Micro size cellulose was extracted by alkali and bleaching treatments followed by acid hydrolysis to obtain cellulose nanocrystal (CNC). Both cellulose (micro) and CNC (nano) were used in hydrogels formulation with gelatin (in ratio 25% cellulose dispersion to 75% gelatin). Gelatin was then subjected to chemical cross-linking using glutaraldehyde as crosslinking agent with CNC entrapped in gelatin to produce hydrogels. SEM observation revealed that swollen micro cellulose has irregular and bigger pores compared to cellulose nanocrystal (CNC) hydrogel which has homogeneous and smaller pores arrangement thus affecting their swelling degree. The cellulose fibers exhibit enhanced thermal stability but contrary with the cellulose nanocrystals which showed lower thermal stability.

Original languageEnglish
Pages (from-to)783-788
Number of pages6
JournalPolymers and Polymer Composites
Volume24
Issue number9
Publication statusPublished - 2016

Fingerprint

Hydrogels
Cellulose
Gelatin
Nanocrystals
Thermodynamic stability
Hydrogel
Glutaral
Alkalies
Bleaching
Crosslinking
Particles (particulate matter)
Swelling
Hydrolysis

Keywords

  • Cellulose
  • Cellulose nanocrystal
  • Gelatin
  • Hydrogel
  • Rice husk

ASJC Scopus subject areas

  • Ceramics and Composites
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Effect of micro-and nano-size of cellulose particles extracted from rice husk on the properties of hydrogels. / Ishak, Wan Hafizi Wan; Yin, Ooi Shok; Ahmad, Ishak.

In: Polymers and Polymer Composites, Vol. 24, No. 9, 2016, p. 783-788.

Research output: Contribution to journalArticle

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