Effects of acid hydrolysis time on cellulose nanocrystals properties: Nanoindentation and thermogravimetric studies

P. Krishnamachari, R. Hashaikeh, M. Chiesa, K. R.M. Gad El Rab

Research output: Contribution to journalArticle

Abstract

Nanoindentation and thermogravimetric studies were performed on different samples obtained from acid hydrolysis of Microcrystalline Cellulose (MCC). Acid hydrolysis of MCC was carried out using 64% H 2SO 4 at 45 °C for 10, 20, 30 min, 1 and 5 h, respectively. Elastic modulus and hardness were assessed for each sample. The samples hydrolyzed for 30 min or more had a considerably lower elastic modulus than those hydrolyzed for 20 min or less. Thermogravimetric (TGA) studies revealed that the onset of thermal degradation of all samples occurred at a lower temperature than that of MCC.

Original languageEnglish (US)
Pages (from-to)13-18
Number of pages6
JournalCellulose Chemistry and Technology
Volume46
Issue number1-2
StatePublished - Jan 2012

Keywords

  • Acid hydrolysis
  • Nanocellulose
  • Nanoindentation
  • Thermal analysis

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Effects of acid hydrolysis time on cellulose nanocrystals properties: Nanoindentation and thermogravimetric studies'. Together they form a unique fingerprint.

  • Cite this