期刊
JOURNAL OF COMPOSITE MATERIALS
卷 44, 期 12, 页码 1421-1434出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998309360944
关键词
accelerated weathering; epoxy; glass fiber; organo-montmorillonite; fracture toughness
资金
- ScienceFund
- Ministry of Science, Technology, and Innovation (MOSTI) Malaysia [03-01-05-SF0403]
- Universiti Sains Malaysia [6035266]
The glass fiber/epoxy composites with different loading of organo-montmorillonite (OMMT) were prepared using the hand lay-up technique. The effects of OMMT loading on the mechanical and morphological properties of glass fiber/epoxy/OMMT nanocomposites have been investigated. In this study, the effect of UV exposure on flexural properties and fracture toughness of glass fiber/ epoxy/OMMT nanocomposites has been studied using accelerated weathering test. The epoxy hybrid nanocomposites were subjected to UV radiation for 100 h. X-ray diffraction (XRD) and field emission scanning electron microscopy were performed to characterize the fractography of the glass fiber/epoxy/OMMT nanocomposites. The XRD analysis showed that glass fiber/epoxy/OMMT (1-3 wt%) exhibit exfoliated structures while glass fiber/epoxy/OMMT (4 wt%) showed intercalated structures. The retention-ability in flexural modulus and strength of epoxy hybrid nanocomposites after being subjected to accelerated weathering are considerably excellent. However, the fracture toughness of the glass fiber/epoxy/OMMT nanocomposites was reduced upon exposure to UV radiation.
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