Effect of microwave processing on the spectral, mechanical, thermal, and morphological characteristics of sustainable resource based castor oil Epoxy/PVA blends

Abstract

ABSTRACT:In recent years, the development of ecofriendly biodegradable packaging materials from natural polymers particularly agricultural products has received increasing attention in an attempt to substitute the existing nonbiodegradable petro-based polymers. The need for new polymeric materials with tailored properties has driven the interest of industry and academia toward polymer blends. Vegetable oils are known to possess varying amounts of triglycerides having different unsaturation in their chains. Blending of commercial polymers with vegetable oil derived polymers is, therefore, expected to show synergetic behavior in terms of compatibility, physical, and mechanical characteristics with the latter. In an attempt to develop a biodegradable packaging material, blends of poly(vinyl alcohol) (PVA) and castor oil epoxy (COE) were synthesized in the weight ratios of 70/30, 60/40, 50/50, 40/60, and

Preparation and Characterization of All-Biomass Soy Protein Isolate-Based Films Enhanced by Epoxy Castor Oil Acid Sodium and Hydroxypropyl Cellulose

“…Moreover, the flexibility of polyurethane-molded plastic films could be improved after adding epoxidized oil [ 28 ]. Previous research has demonstrated that the thermal stability and water resistance of poly (vinyl alcohol) (PVA) films could be greatly enhanced by the introduction of epoxidized castor oil (ECO) [ 29 ]. It has also been demonstrated that the epoxy groups reacted readily with the amino groups in soy protein and improved the water resistance of resulting soy protein-based composite [ 30 , 31 ].…”

In Situ Preparation of Polypyrrole Nanorod Composite in the Presence of Phosphorylated Polyvinyl Alcohol

“…FTIR spectra displayed in Fig. shows the typical peaks of PVA attributed to the –OH stretching vibrations at 3200–3400 cm −1 , alkyl stretching vibrations at 2850–2900 cm −1 , –CH 2 bending absorptions at 1424 cm −1 , and –C–O–H stretching at 1097 cm −1 position . A teeny peak at 1730 cm −1 was observed because of residual vinyl acetate groups.…”

Microwave‐Assisted Synthesis and Morphological Characterization of Chiral Poly(amide–imide) Nanostructures in Molten Ionic Liquid Salt

“…Over the past years, significant progress has been witnessed in this technology. This technique has become a frontline methodology and gained growing attention in organic, medicinal, and polymer chemistry . There are a number of excellent reasons to use the microwave to heat reactions, or to at least have access to a scientific microwave unit.…”