Water absorption behavior and its effect on the mechanical properties of kenaf natural fiber unsaturated polyester composites

E. Osman, A. Vakhguelt, I. Sbarski, S. Mutasher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

Treated kenaf fiber reinforced unsaturated polyester composites at different weight fractions (0, 10, 20, 30 and 40wt %) are fabricated and evaluated by their immersion in tap water at two different temperatures of 25 °C and 50 °C. The results showed that the percentage of water absorption increases with increasing of fiber weight fractions and environmental temperature. The process of absorption of water was found to approach the Fickian diffusion behavior for both various temperatures. Water diffusion coefficients were evaluated and the results showed that they increase with the increasing environmental temperature and fiber weight fractions. Furthermore the results indicate that the flexural properties of the composites decreased drastically on exposure to moisture results due to degradation of the fibermatrix interface. A scan electron microscopy SEM shows that at high environmental temperatures a deboning developed between the fiber and matrix, which is causing a majority of fiber to fail by fiber pull out mode failure. In addition microcracks developed at the interface between the fiber and the matrix.

Original languageEnglish
Title of host publicationICCM International Conferences on Composite Materials
Publication statusPublished - 2011
Externally publishedYes
Event18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of
Duration: Aug 21 2011Aug 26 2011

Other

Other18th International Conference on Composites Materials, ICCM 2011
CountryKorea, Republic of
CityJeju
Period8/21/118/26/11

Keywords

  • Diffusion coefficient
  • Flexural strength
  • Kenaf fiber
  • Natural fiber composites
  • Unsaturated polyester
  • Water absorption

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

Fingerprint Dive into the research topics of 'Water absorption behavior and its effect on the mechanical properties of kenaf natural fiber unsaturated polyester composites'. Together they form a unique fingerprint.

Cite this