Biodegradable green composite film developed from Moringa Oleifera (Sahajana) seed filler and PVA: Surface functionalization, characterization and barrier properties

Abstract

The present work focuses on surface functionalization, characterization, biodegradability and barrier properties of MOSF as a practicable reinforcement in PVA matrix. Film-forming dispersions at different concentrations of alkali and acid treatments were casted at room temperature. The effect of surface modifications on the developed film’s compositional, physical, mechanical, biodegradability and barrier properties were analyzed. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Atomic force microscopy (AFM) were used to describe the functional composition, formation and surface morphology of the film. The 5% acid treated film significantly increases the tensile strength (33.69 MPa) and flexural strength (56.612 MPa), which was close to the frequently used LDPE and HDPE package films. Composite films were moisture absorptive but simultaneously capable to maintain uniformity and composition upon modifications. Lower water vapor permeability (1.42 × 10−10gs−1 m−1 Pa−1), eminent biodegradability proved the suitability of composite film for various packaging applications.

Optimization of the alkali treatment on the tempo‐modified cellulosic nanoreinforcement in autoclaved epoxy matrix

“…59 Further, eliminating non-cellulosic contents could reorganize the cellulosic fibrils into a highly compacted structure. 47 Analogous results were observed in the alkali treatment of Acacia planifrons bark fibers, 44 Pennisetum orientale fiber, 47 Parthenium hysterophorus fiber. 48 The cavitation impact of ultrasonication, which can encourage the elimination of lignin and hemicellulose, boosted the mass transfer of sodium chlorite and alkaline solution (after ultrasonic preprocessing).…”

Effect of alkali-treated Moringa oleifera fruit husk fibre/SiC nanoparticle reinforced polymer composites

“…Further, the impregnation of SiC nanofiller particles in the composite specimens improved the stress distribution within the composite specimen as well as improved their bonding characteristics when loaded with tensile force. 29 This improved the load-carrying capacity of the AMOFHFC specimens C, D, E, F and G. The AMOFHFC specimen F with 4 wt.% SiC nanoparticles as filler material showed a maximum tensile strength of 80.49 MPa. This may be due to the minimum voids and compact packing of AMOFHFC specimen F. On the other hand, adding 5 wt.% of SiC nanoparticles as filler material to AMOFHFC specimens showed a decline in tensile characteristics by 4.32% owing to the accumulation of SiC nanoparticles in AMOFHFC specimen G.…”

Effect of boehmite nanoparticles on structural, optical, thermal, mechanical and electrical properties of poly (methyl methacrylate) nanocomposites for flexible optoelectronic devices

“…1,2 The final product properties depend on factors such as the method of mixing, the mixed polymer proportions, the temperature at which mixing is done, and the degree of mixing of individual polymeric components. [3][4][5] The interfacial interactions between polymer functional groups in the mixture govern the final physical and chemical properties of the material. In addition, the incorporation of nanoparticles into the polymer mixture enhances their properties due to the interaction between them and the functional groups of the mixture.…”