ItemArticle

Flexible and sustainable dielectric materials from natural rubber and Caryota urens extract for wearable and soft electronic devices

Title
Flexible and sustainable dielectric materials from natural rubber and Caryota urens extract for wearable and soft electronic devices
Creator
Pasha, Mohammed Zamar; Khan, Faheem Ahmed; Sudheep, N.M.; Binish, C.J.; Harisha, G.; Murugendrappa, M.V.; Kumar, KS Krishna; Johns, Jobish
Description
This study explores the structural, mechanical, and dielectric properties of natural rubber (NR) blended with Caryota urens fruit extract (CUFE), with and without glutaraldehyde (GA) crosslinking, for sustainable dielectric materials. CUFE, rich in hydroxyl groups, was incorporated at varying concentrations to improve interfacial polarization and dielectric response. FTIR confirmed successful blending and crosslinking, while SEM revealed enhanced homogeneity with CUFE and GA treatment. Mechanical tests showed improved tensile strength and elongation at break, with optimum performance at 10 wt% CUFE. GA crosslinking enhanced dimensional stability but reduced elasticity due to network formation. Dielectric analysis indicated higher capacitance and lower impedance with increasing CUFE, driven by ionic and interfacial polarization. GA-crosslinked blends exhibited superior dielectric efficiency, with lower energy loss and higher charge storage capability. With flexibility, tunable conductivity, and strong dielectric performance, NR/CUFE blends show promise for flexible capacitors, wearable electronics, sensors, and sustainable devices. 2025 Korean Physical Society
Source
Current Applied Physics;Volume;83;pp.65-78
Date
01-01-2026
Publisher
Elsevier B.V.
Subject
Caryota urens extract; Dielectric properties; Flexible electronic materials; Glutaraldehyde crosslinking; Natural rubber
Coverage
Pasha M.Z., Department of Electrical and Electronics Engineering, Ghousia College of Engineering, Karnataka, Ramanagaram, India; Khan F.A., Department of Electrical and Electronics Engineering, Ghousia College of Engineering, Karnataka, Ramanagaram, India, Ghousia Institute of Technology for Women, Bengaluru, India; Sudheep N.M., School of Biosciences, Mahatma Gandhi University, Kerala, Kottayam, India; Binish C.J., Department of Chemistry, CHRIST-Deemed to be University, Bangalore, 560029, India; Harisha G., Jnana Jyothi Educational Institutions, Yelahanka New Town, Bengaluru, India; Murugendrappa M.V., Department of Physics, BMS College of Engineering, Basavanagudi, Bengaluru, India; Kumar K.K., Department of Physics, Rajarajeswari College of Engineering, Mysore Road, Bengaluru, 560074, India; Johns J., Department of Physics, Rajarajeswari College of Engineering, Mysore Road, Bengaluru, 560074, India
Rights
Restricted Access; Hardcopy may be available in the library
Relation
ISSN: 15671739;
Format
online
Language
English
Type
Article

Citation

Pasha, Mohammed Zamar; Khan, Faheem Ahmed; Sudheep, N.M.; Binish, C.J.; Harisha, G.; Murugendrappa, M.V.; Kumar, KS Krishna; Johns, Jobish, “Flexible and sustainable dielectric materials from natural rubber and Caryota urens extract for wearable and soft electronic devices,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22210.

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