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The effect of glycerol content on mechanical properties, surface morphology and water absorption of thermoplastic films from tacca leontopetaloides starch
Ainatul Mardhiah Mohd Amin1, Suhaila Mohd Sauid2, Mohibah Musa3, Ku Halim Ku Hamid4.
Tacca leontopetaloides is a new plant source of starch and has high potential
to produce film of thermoplastic. In this study, thermoplastic starch (TPS) derived
from T.leontopetaloides was developed with glycerol as plasticizer through
casting method at temperature range from 85 °C to 90 °C and enhanced with
sulphur vulcanization method. It was found that the addition of 5%, 10%, 15%,
20% and 25% (v/v) of glycerol into T.leontopetaloides starch had affected the
mechanical properties, surface morphology, and water absorption of the
thermoplastic films. In the mechanical properties study, the TPS films have the
highest tensile strength (47.96 MPa) at 5% glycerol content in the formulation.
Conversely, the TPS films have increasing value of elongation at break (EAB)
with increasing glycerol concentration with the higher EAB obtained at 25%
glycerol content (52.90%). The morphology of thermoplastic film was examined
by using Scanning Electron Microscopy (SEM). As glycerol content increased,
thermoplastic films showed smoother surface, homogenous and good
distribution. In water absorption test, TPS films showed lower affinity to water
absorption at lower glycerol content. The weight of the TPS films increased
ranging from 80.3% to 107.4% after 12 hour of immersion in water. It can be
concluded that, glycerol significantly affected the properties of TPS film within
the range of glycerol concentration studied.
Affiliation:
- Universiti Teknologi MARA, Malaysia
- Universiti Teknologi MARA, Malaysia
- Universiti Teknologi MARA, Malaysia
- Universiti Teknologi MARA, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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