POS7-0506
Enhanced Filler Dispersion and Reinforcement of Silica/Carbon Black-Filled SBR Composites Using an Inverse-Vulcanized Sulfur-Styrene-GMA Copolymer
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
In-Hee Kim (Department of Applied Organic Materials Engineering, Chungnam National University)
Co-Author(s)
Abstract
An inverse-vulcanized sulfur-styrene-glycidyl methacrylate (SG) copolymer was synthesized and employed as a coupling agent for silica/carbon black-filled styrene–butadiene rubber (SBR) composites. The chemical structure of SG was confirmed by FT-IR and NMR analyses. Interactions between SG and filler surfaces were investigated using FT-IR, XPS, and TGA, demonstrating effective interfacial coupling. Incorporation of SG increased the bound rubber content and crosslink density while reducing the Payne effect, indicating enhanced filler–rubber interactions and improved filler dispersion. SEM and Si elemental mapping further revealed a more homogeneous distribution of silica and carbon black within the SBR matrix. As a result, the SG-containing composites exhibited improved tensile properties and enhanced energy dissipation behavior. These findings demonstrate that the inverse-vulcanized SG copolymer effectively promotes filler dispersion and interfacial adhesion, leading to improved mechanical and dynamic performance of silica/carbon black-filled SBR composites.
Keywords: Styrene-butadiene rubber (SBR), Inverse Vulcanizaton, Coupling agent, Inverse vulcanization, Silica/carbon black hybrid fillers, Coupling agent
Keywords: Styrene-butadiene rubber (SBR), Inverse Vulcanizaton, Coupling agent, Inverse vulcanization, Silica/carbon black hybrid fillers, Coupling agent
