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Elastic Composites Containing Carbonous Fillers Functionalized by Ionic Liquid: Viscoelastic Properties
Magdalena Gaca1, Magdalena Lipińska1
1Department of Chemistry, Institute of Polymer and Dye Technology, Lodz University of Technology, 16 Stefanowskiego Street, 90-537 Lodz, Poland.
Polymers
|December 31, 2025
Summary
This study investigated modified carbon fillers in styrene-butadiene rubber (SBR) composites. The ionic liquid modifier influenced filler-polymer interactions, affecting mechanical and viscoelastic properties of the rubber.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Styrene-butadiene rubber (KER 1500) is a widely used polymer in rubber processing.
- Carbon fillers like carbon black (N550) and graphene nanoplatelets (XG G300) are common reinforcing agents in polymer composites.
- Surface modification of fillers can alter their interaction with polymer matrices, influencing composite properties.
Purpose of the Study:
- To investigate the effect of modifying carbon fillers with 4-methyl-1-butylpyridinium bromide (BmPyBr) on styrene-butadiene rubber (SBR) composites.
- To understand how filler shape and size, along with ionic liquid presence, influence polymer-filler interactions.
- To evaluate the impact of these modifications on the rheological, mechanical, and viscoelastic properties of the SBR composites.
Main Methods:
- Preparation of SBR composites using styrene-butadiene rubber (KER 1500) and a sulfur curing system.
- Incorporation of two carbon fillers: furnace carbon black (N550) and graphene nanoplatelets (XG G300), modified with 4-methyl-1-butylpyridinium bromide (BmPyBr).
- Characterization of rheometric properties of rubber compounds, cross-linking density, mechanical properties, rheological and viscoelastic behavior at service temperature, and damping properties.
Main Results:
- The study revealed distinct polymer-filler interactions influenced by filler morphology and the presence of the ionic liquid modifier.
- Modification with BmPyBr affected the rheometric, cross-linking, and mechanical properties of the SBR composites.
- Rheological, viscoelastic, and damping properties were significantly influenced by the filler modification and filler type.
Conclusions:
- The ionic liquid modifier plays a crucial role in mediating interactions between styrene-butadiene rubber and different carbon fillers.
- The modification strategy impacts the processability and final performance characteristics of the polymer composites.
- Understanding these filler-polymer-modifier interactions is key to designing advanced rubber composite materials with tailored properties.
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