Page 71 - Template Tesis UTM v2.0

Nahar et al. [51] did comparative studies on the tensile property between PP

sheet, jute fibre/PP and bamboo/PP. It was found that the tensile strength and modulus
as well as elongation at break of jute /PP significantly improved in comparison with

matrix PP. In addition, bamboo/PP exhibited the superior mechanical properties than
jute/PP.

Akil et al. [60] investigated on the environmental effects of pultruded jute/glass

reinforced polyester on tensile and flexural tests. However, the author interest only on
the virgin specimens (regardless the effect of water ageing) between pure jute and

hybrid specimen of jute/glass. The result shows that the hybrid composite of jute/glass
recorded the tensile strength and modulus of 261.22 MPa and 25.70 GPa, while pure

jute recorded the values of 135.53 MPa and 17.30 GPa, respectively.

Untreated jute reinforced polyester was tested on tension mode and it was

found that the ultimate tensile strength was 120 MPa [47]. Meanwhile, natural fibre of
bamboo reinforced thermoplastic PP recorded its tensile strength and modulus of 60

MPa and 4.21 GPa, respectively [51].

Hybridisation between jute and oil palm fibres with epoxy matrix composites
were found to increase substantially the tensile properties of the laminates with the

increasing jute fibres loading as compared to oil palm - epoxy composite [84].

The effect of alkaline treatment was investigated on the tensile properties for
hybrid composite fabricated from woven Kevlar and long kenaf fibre with polyester

resin. It was found that the tensile properties were improved by 25 % in comparison
with untreated kenaf, as well as linearly increase with the increasing of weight

percentage of Kevlar as illustrated in Figure 2.17. Alkaline treatment helps in
removing pectin and hemicellulose contents in kenaf fibre and caused the crystallinity

index to increase. As a result, good surficial adhesion between kenaf and polyester was

achieved due to the rough surface of the kenaf fibre after treatment [87].

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