Physico-mechanical properties of a microwave-irradiated kenaf carbamate/graphene oxide membrane

Sinyee Gan, Sarani Zakaria, Chin Hua Chia, Ruey Shan Chen, Norfadillah Jeyalaldeen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Cellulose carbamate (CC) prepared using microwave irradiation was reinforced with graphene oxide (GO) to fabricate homogeneous and highly ordered CC–GO membranes using a simple solution-mixing method. The effect of GO content on the properties of the membranes was investigated. Atomic force microscope and transmission electron microscope images indicated that the self-synthesized GO nanosheets exhibited exfoliated layers within the CC. X-ray diffraction results confirmed the crystalline structure of cellulose I and cellulose II in the CC pulp and CC–GO membranes, respectively. Increasing the GO content from 0 to 4 wt% resulted in a slight decrement in the crystallinity index. The membrane containing 4 wt% GO possessed a tensile modulus and strength higher by approximately 525 and 93 %, respectively, compared to the neat CC. Thermogravimetric analysis proved that the GO promoted higher thermal stability and carbon yields. The 3D homogeneous porous structures of the CC–GO membranes were viewed under a field emission scanning electron microscope. These improvements in the membrane properties were confirmed by Fourier transform infrared spectroscopy and are attributed to the strong and effective interactions between CC and GO.

Original languageEnglish
Pages (from-to)3851-3863
Number of pages13
JournalCellulose
Volume22
Issue number6
DOIs
Publication statusPublished - 1 Dec 2015

Fingerprint

Carbamates
Graphite
Cellulose
Oxides
Graphene
Microwaves
Membranes
Mechanical properties
Electron microscopes
Microwave irradiation
Nanosheets
Field emission
Pulp
Fourier transform infrared spectroscopy
Thermogravimetric analysis
Microscopes
Thermodynamic stability
Tensile strength
Carbon
Elastic moduli

Keywords

  • Alkaline aqueous solution
  • Composite
  • Regenerated cellulose
  • Urea

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Physico-mechanical properties of a microwave-irradiated kenaf carbamate/graphene oxide membrane. / Gan, Sinyee; Zakaria, Sarani; Chia, Chin Hua; Chen, Ruey Shan; Jeyalaldeen, Norfadillah.

In: Cellulose, Vol. 22, No. 6, 01.12.2015, p. 3851-3863.

Research output: Contribution to journalArticle

Gan, Sinyee ; Zakaria, Sarani ; Chia, Chin Hua ; Chen, Ruey Shan ; Jeyalaldeen, Norfadillah. / Physico-mechanical properties of a microwave-irradiated kenaf carbamate/graphene oxide membrane. In: Cellulose. 2015 ; Vol. 22, No. 6. pp. 3851-3863.
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