Abstract:
Recently, nanocomposite has played an important role by giving numerous applications that may
solve real-world problems and help society. The development of environmentally sustainable
materials composed of lignocelluloses biomass, which comprises cellulose, hemicelluloses, and
lignin has attracted a lot of interest because of petroleum-based resources and their accompanying
environmental issues. Nonrenewable polymeric materials, such as plastics, are not biodegradable
when discarded, posing an environmental hazard. As a result, there is a demand for ecologically
friendly and resource-efficient goods such as bio-composites. The purpose of this work was to
assess the potential usefulness of bamboo for the manufacture of nano-biocomposites using
polyvinyl alcohol as a reinforcing ingredient. The nanocellulose particles were synthesized from
the high-land bamboo plant species (Arundinaria Alpina) using acid hydrolysis. The chemical
composition, particle size, and crystallinity of the particles were studied using Fourier transform
infrared spectroscopy, dynamic light scattering, and X ray diffraction. The influence of reaction
time, temperature, and acid concentration on nanocellulose yield was optimized by using Respon
se Surface Methodology with corresponding results of 60 minute, 40℃, and 61.404wt% respectiv
ely and the nanocellulose yield obtained at optimum parameter was 43.155%. The functional gro
up structure of the nanocellulose could be confirmed by analyses of Fourier transform infrared
spectroscopy. The average particle size was 106.5 nm with a poly-dispersity index of 0.0632.
The crystallinity index of bamboo, nanocellulose and average crystallite size was 44.60%, 74.0%
and, 35.20nm, respectively. Following that, the Nanocellulose/Polyvinyl alcohol composite was
prepared using the solvent casting method, and the thermal stability of the composite was analyz
ed using Thermogravimetry analyzer of PVA reinforced with 6wt% NC shows a high weight loss
of 80.56 % of its total weight occurred at a temperature range between 290.782 °C to 380.207°C
as well as water absorption capacity and mechanical properties such as tensile strength and
elongation at break were studied. Different ratios of nanocellulose loading were used to see the
effects of nanocellulose loading on the properties of polyvinyl alcohol. Therefore, according to the
findings, bamboo is the alternative lignocellulosic material for generating nanocellulose for
nanocomposite applications.
