ItemArticle

A Pathway to Better EMI Shielding Performance in Natural Rubber Through Ternary Carbonaceous Filler Systems

Title
A Pathway to Better EMI Shielding Performance in Natural Rubber Through Ternary Carbonaceous Filler Systems
Creator
Abhisha, V.S.; Somasekharan, Lakshmipriya; Sisanth, K.S.; Thomas, Sabu; Stephen, Ranimol
Description
In the present study, we fabricated and characterized ternary hybrid fillers of conductive carbon black (CCB), carbon nanotubes (CNT), and reduced graphene oxide (RGO) reinforced natural rubber (NR) composites. The ternary filler system exhibited good filler-polymer interaction as observed from the cure characteristics and mechanical properties. We used impedance analysis to study the dielectric permittivity and associated polarization mechanisms, and the AC conductivity was fitted using the Jonsher Power law. The presence of functional groups on the ternary nanofiller surfaces caused increased filler-filler interactions, leading to the formation of an excellent conductive network. Mechanical and viscoelastic studies revealed the reinforcing effect of the CCB, CNT, and RGO fillers. The theoretical models, such as Nicolais-Narkis and Turcsanyi, were employed to predict the tensile strength. Morphological analysis confirms the homogeneous dispersion of filler in the matrix. The present system also demonstrated excellent electromagnetic interference (EMI) shielding performance, with the highest shielding effectiveness (SE) values of 37.4 and 35.3 dB at 12 GHz for the ternary composites, satisfying commercial requirements. 2026 John Wiley & Sons Ltd.
Source
Polymers for Advanced Technologies;Volume;37;Issue;2;Article No.;e70528;
Date
01-01-2026
Publisher
John Wiley and Sons Ltd
Subject
dielectric; EMI shielding; hybrid fillers; natural rubber; viscoelatic
Coverage
Abhisha V.S., Department of Chemistry, St. Joseph's College (Autonomous), Devagiri, Affiliated to University of Calicut, Calicut, India; Somasekharan L., International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India; Sisanth K.S., International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India; Thomas S., International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India, School of Chemical Sciences, Mahatma Gandhi University, P.D. Hills, Kottayam, India, School of Energy Materials, School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India, Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa, TrEST Research Park, Sreekariyam, India, Department of Physics & Electronics, CHRIST (Deemed To Be University), Bangalore, India; Stephen R., Department of Chemistry, St. Joseph's College (Autonomous), Devagiri, Affiliated to University of Calicut, Calicut, India
Rights
All Open Access; Bronze Open Access
Relation
ISSN: 10427147;
Format
online
Language
English
Type
Article

Citation

Abhisha, V.S.; Somasekharan, Lakshmipriya; Sisanth, K.S.; Thomas, Sabu; Stephen, Ranimol, “A Pathway to Better EMI Shielding Performance in Natural Rubber Through Ternary Carbonaceous Filler Systems,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/21796.

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