Page 126 - Template Tesis UTM v2.0

4.2 Hybrid and Pure Samples

Table 4.1 summarises the thickness and density of the hybrid and pure

composite laminates. Density of the laminates significantly influenced on the strength

and stiffness-to-weight ratio of the composite products, particularly to suit with certain
application.

Table 4.1 The properties of hybrid and pure composites

3
No Sample Thickness (mm) Density (g/cm )
1 G2/B3/G2 2.1 1.85

2 G2/J3/G2 4.2 1.43

3 G2/F3/G2 3.0 1.56
4 [G/B]3G 2.3 1.87

5 [G/J]3G 4.2 1.42

6 [G/F]3G 2.8 1.51

7 G7 2.9 1.89

8 B7 1.2 1.78

9 J7 5.0 1.08

10 F7 3.1 1.16

Remarks: G - E-glass, B - basalt, J - jute and, F – flax

4.3 Volume Fraction and Weight Fraction of Fibre and Matrix for Hybrid

and Pure Composites

The volume and weight fractions of all the tested specimens are summarised in

Table 4.2. Present study revealed that the hybrid composites recorded a higher volume

fraction of fibre, ranging from 0.38 to 0.54. As found in the previous literatures on
sisal fibre epoxy composites [138] as well as the impact strength of bamboo/glass

reinforced epoxy [139], the volume fraction significantly influences the mechanical

properties of the tested specimens. However, the pure jute and flax laminates exhibit

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