Factorial analysis of tensile properties of Areca Leaf Sheath (ALS) subjected to flattening
Areca leaf sheath (ALS) is a common agricultural waste produced in Southeast Asia countries, which is widely utilized over the decades to make biodegradable disposable dining wares. The workable surface of ALS for heat pressing is limited due to the concavity in the middle and folding at the edges...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UTHM
2021
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2784/ http://eprints.uthm.edu.my/2784/1/J12208_aa237216d4ad5e27db6a5eaf98af320c.pdf |
| Summary: | Areca leaf sheath (ALS) is a common agricultural waste produced in Southeast Asia countries, which is
widely utilized over the decades to make biodegradable disposable dining wares. The workable surface of ALS for
heat pressing is limited due to the concavity in the middle and folding at the edges of ALS. This study proposes
that the ALS is flattened using a padding mangle prior to the forming process. The aim is to investigate the effect
of ALS thickness and flattening pressure on the ultimate tensile strength and strain at break of ALS. A range of
factors influencing the flattening process were investigated using design of experiment (DOE) approach based on
analysis of variance (ANOVA). As the applied pressure increases, the thickness reduction of the ALS also
increases. The tensile test was carried out in accordance to ASTM D3039 standard. It is found that ALS thickness
and flattening pressure affect the results differently. The highest ultimate tensile strength (23.25 MPa) is obtained
from 3-4 mm thick grain direction samples flattened at 5 bar; whereas the highest strain is 58.28% from
perpendicular grain direction samples flattened at 1 bar, with thickness range of 3-4 mm. The results suggest that
flattening process does not influence the tensile strength of ALS significantly when it is fed in parallel direction;
but decreases the strain slightly. |
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