Thermal, morphological, and electrical characterization of microwave processed natural fiber composites

Nikki Sgriccia, M. C. Hawley

Research output: Contribution to journalArticle

  • 57 Citations

Abstract

Experiments to investigate the effectiveness of microwave curing of natural fiber reinforced composites have been performed. Hemp, flax, kenaf, henequen and glass (15 wt.%) reinforced epoxy composed of diglycidyl ether of bisphenol-A (DGEBA) and diaminodiphenyl sulfone (DDS) composites were studied. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), environmental scanning electron microscopy (ESEM), and swept frequency diagnostic method were used to investigate material properties. Samples were processed using both microwave and thermal curing. Glass and flax composites reached a higher final extent of cure with microwave curing than with thermal curing. Glass, flax, and hemp cured faster in the microwave than their convection oven counterparts. Natural fibers and their composites degraded at lower temperatures than glass and glass fiber composites. ESEM micrographs, used to investigate fiber morphology, indicated a lack of bonding at the interfaces between the fibers, natural and glass, and matrix.

LanguageEnglish (US)
Pages1986-1991
Number of pages6
JournalComposites Science and Technology
Volume67
Issue number9
DOIs
StatePublished - Jul 2007

Profile

Natural fibers
Flax
Microwaves
Curing
Composite materials
Hemp
Glass
Cannabis
Glass fibers
Sulfones
Scanning electron microscopy
Ovens
Thermogravimetric analysis
Differential scanning calorimetry
Ethers
Materials properties
Hot Temperature
Fibers
Experiments
Temperature

Keywords

  • A. Polymer-matrix composites
  • B. Electrical properties
  • B. Thermal properties
  • D. Differential scanning calorimetry
  • Microwave

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

Cite this

Thermal, morphological, and electrical characterization of microwave processed natural fiber composites. / Sgriccia, Nikki; Hawley, M. C.

In: Composites Science and Technology, Vol. 67, No. 9, 07.2007, p. 1986-1991.

Research output: Contribution to journalArticle

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