15
Jamaludin, M. Y. et al. / Jurnal Teknologi (Sciences & Engineering) 69:3 (2014), 11–15
university research grants (RUG) No. Q.J130000.7122.00H83,
Q.J130000.7122.03H35 and Q.J130000.7122.03H36
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[1]
[2]
[3]
[4]
Figure 12 Young’s modulus of Kenaf/Vinyl Ester composites
[5]
4.0 CONCLUSION
The following conclusions could be drawn from the
experimental results of this study:
i.
ii.
iii.
iv.
All Kenaf/Epoxy, Kenaf/Polyester, and Kenaf/Vinyl
Ester composites were brittle materials.
The tensile strength of Kenaf/Epoxy composites,
Kenaf/Polyester composites, and Kenaf/Vinyl Ester
composites were 3.1 times, 4.7 times and 5.4 times
respectively higher as compared with those of neat
(control) resins.
The Kenaf/Epoxy composites had the highest ultimate
tensile strength. All composites’ strength gradually
increased when the fiber volume fraction increased.
Kenaf/Epoxy composites had the highest Young’s
modulus up to 50% fiber volume fraction.
Meanwhile, the Young’s modulus of Kenaf/Polyester
composites and Kenaf/Vinyl Ester composites were
approximately the same. The Young’s modulus for all
composites then fluctuated due to the effect of fiber
arrangement and viscosity of resins.
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
Acknowledgement
The authors are grateful to the Ministry of Higher Education,
MOHE and Universiti Teknologi Malaysia for sponsoring this
project under the FRGS’s vote number of 78507 and three
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