Tensile, Thermal and Moisture Absorption Properties of Polyvinyl Alcohol (PVA) / Bengkuang (Pachyrhizus erosus) Starch Blend Films
Date
2019-04-07Author
ASROFI, Mochamad
WILAKSANA, Dedi
ABRAL, Hairul
FAJRUL, Rahmat
Metadata
Show full item recordAbstract
This paper described of the tensile, thermal, and moisture absorption
characteristic of polyvinyl alcohol (PVA) / bengkuang (Pachyrhizus erosus)
starch blend films. The film was produced through solution casting method.
Tensile, thermogravimetric analysis and moisture test were studied to
determine the tensile strength, thermal stability, and moisture absorption,
respectively. The highest tensile strength (TS) was 15.86 ± 0.69 MPa
for pure PVA film. This result was higher than bengkuang starch and its
blends film. Tensile elongation (TE) decreased as increased bengkuang
starch content in PVA. The thermal degradation of PVA film was higher
10 °C than bengkuang starch films in range temperature 200-380 °C. The
addition of bengkuang starch in PVA also increased moisture absorption.
The highest moisture absorption was in bengkuang starch film. This blend
film’s tensile, thermal, and moisture properties probably suggested it could
be suitable for food packaging.
Collections
- LSP-Jurnal Ilmiah Dosen [7292]