Utilization of Cellulose from Pineapple Leaf Fibers as Nanofiller in Polyvinyl Alcohol-Based Film
ABSTRACT: Cellulose from
pineapple leaf fibers as one of the natural polymer which has biodegradable
property in a nanometer’s scale can be formed as a filler in the composite of
Poly(vinyl) Alcohol/PVA is expected to increase the physical, thermal, and
barrier properties of composite films similar to conventional plastic. The aim
of this study was to examine the effect of fibrillation of cellulose fibers
from pineapple leaf fibers using a combined technique of chemical-mechanical
treatments and to investigate the reinforcing effect of concentration of
nanocellulose fibrils in the polyvinyl alcohol (PVA) matrix. The effect of
reinforcing on physical properties, thermal properties, water vapor transmission
rate, light transmittance and morphological with and without the addition of
glycerol were investigated. Nanocellulose was made from the cellulose of
pineapple leaf fiber using wet milling (Ultra Fine Grinder). The composite film
production was carried out by using casting solution method by mixing PVA
solution withnanocellulose (10-50%) and glycerol (0-1%). The characterization
of film covered physical properties (thickness, moisture content, and density),
thermal properties, permeability (WVTR), light transmittance, morphology, and crystallinity.
Nanocellulose from pineapple leaf fibers was produced by Ultra Fine Grinder
shows that the size reduction process was accurate. Nanocellulose addition on
PVA composite film was affected by increasing the physical, thermal, and
barrier properties. Meanwhile, decreasing the percentage of composite film
transmittance, thus the transparency decrease (opaque). Water vapor
transmission rate (WVTR) the film was increased with increasing glycerol
concentration, but the physical and thermal properties were decreased.
Author: Kendri Wahyuningsih,
Evi Savitri Iriani, and Farah Fahma
Journal Code: jpkimiagg160079
