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Mohd Nurilhadi / JOJAPS – JOURNAL ONLINE JARINGAN PENGAJIAN SENI BINA 0197731035

3.1.2. Charpy test

Table 3.1.2 Result of charpy impact test.
Ratio Sample Energy Absorb

Sample Angle (º) Charpy (J) Average
80:20 Sample 1.1 110 5.32 5.50

Sample 1.2 109 5.87
Sample 1.3 110 5.32

60:40 Sample 2.1 107 6.99 7.18
Sample 2.2 106 7.55

Sample 2.3 107 6.99
50:50 Sample 3.1 106 7.55 7.56

Sample 3.2 109 5.87
Sample 3.3 103 9.26

Based on the data and information above, shows the energy absorbed for the impact test (charpy) on all
samples used. The charpy test used is to determine the amount of energy absorbed by the material during
fracture. The value of the charpy has different values on all the different samples which it is based on the angle
that was obtained when performing the test. The results of the study found that the highest maximum average
charpy is 7.56J that is in the sample 3 (50:50). This indicates that the sample has a lot of energy absorbed by the
material compared to other samples. Sample 2 (60:40) has an energy absorb of 7.18J. Meanwhile, the minimum
average energy absorb is 5.50J on sample 1 (80:20). The amount of energy absorbed can determine the strength
and position of the material depending on the ductile-brittle transition. It is widely used in industry, as it is easy
to carry out and results can be obtained quickly.

4. Physical testing on mangrove polymer composite

For physical testing, only water absorption test conducted. The sample of ratio used is (epoxy: fiber)

Sample 1 (80:20)

Sample 2 (60:40)

Sample 3 (50:50)

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