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Development of biopolymer composite films based on chicory extract reinforced polyvinyl alcohol/chitosan blend via green approach for flexible optoelectrical devices.

Authors :
Ramesan, M. T.
Kalladi, Ayisha Jemshiya
Labeeba Abdulla, A. C.
Sunojkumar, P.
Bahuleyan, B. K.
Source :
Journal of Applied Polymer Science; 4/5/2024, Vol. 141 Issue 13, p1-11, 11p
Publication Year :
2024

Abstract

Biopolymer blend composite films based on polyvinyl alcohol (PVA) and chitosan (CS) incorporated with varying amounts of chicory extract (CE) have been developed by the green solution casting technique. The impact of CE content on structural, thermal, mechanical and electrical properties was thoroughly examined. The existence of intermolecular interactions in the blend composite was confirmed by Fourier‐transform infrared and ultraviolet spectroscopy. The x‐ray diffraction pattern proved the successful preparation of PVA/CS/CE composite film. The scanning electron microscopy images of the composites showed shape and grain size for the different bio‐filler contents. The thermal transition temperature of the blend composites was significantly improved by the addition of CE extract deduced from differential scanning calorimetry. The dielectric study showed that the permittivity remarkably increases with decreasing frequency and maximum dielectric constant was observed for 15 wt% loading. The activation energy obtained from the AC conductivity decreased as the temperature increased. The addition of CE extract improved the hardness and tensile strength of the PVA/CS blend composite in comparison with a pristine pure blend. The controllable mechanical, thermal, optical, and electrical characteristics of the PVA/CS blend composite suggest that it might be an attractive optical material for the advancement of futuristic flexible‐type optoelectronic and energy storage systems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00218995
Volume :
141
Issue :
13
Database :
Complementary Index
Journal :
Journal of Applied Polymer Science
Publication Type :
Academic Journal
Accession number :
175642148
Full Text :
https://doi.org/10.1002/app.55154