POS7-1264
Ni–Zn–Co Ferrite/SBR Multifunctional Nanocomposites with Data-Driven Correlation of Vulcanization Kinetics and Optimal Filler Loading
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Sep 30, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Heesuk KIM
Jinhye BAE
Presenter(s)
Sungmo Choi (Gachon University)
Co-Author(s)
Abstract
Styrene-butadiene rubber (SBR) offers good processability and cost-effectiveness, but its low dielectric and conductive properties limit its use in high-performance applications. To address this, a Ni-Zn-Co spinel ferrite was developed as the filler, using Ni-Zn as a spinel host with high resistivity and chemical stability and introducing Co substitution to enhance the dielectric and electrical properties. The ferrite nanoparticles were synthesized by a sol-gel method and mixed with SBR using two-roll milling to fabricate composites over a range of 0 to 30 phr. The formation of single-phase spinel and its dispersion within the SBR matrix were confirmed by XRD, FT-IR, and SEM. From 0 to 30 phr, the relative permittivity increased from 3.60 to 72.95, the resistivity decreased from 685 to 5 Ω·m, and electrical percolation was observed at approximately 15 phr. At 22 phr, the mechanical properties were highest, with the tensile strength increasing from 6.77 to 24.88 MPa and the modulus from 8.75 to 38.47 MPa. In addition, kinetic parameters obtained from the vulcanization behavior were used as inputs to a data-driven model for predicting the composite properties. By combining dielectric enhancement and mechanical reinforcement in a single filler system, the composite offers a promising platform for flexible electronics, energy storage, and EMI shielding.
Keywords: SBR nanocomposites, Ni–Zn–Co ferrite, dielectric properties, mechanical reinforcement, Data-Driven model
Keywords: SBR nanocomposites, Ni–Zn–Co ferrite, dielectric properties, mechanical reinforcement, Data-Driven model
