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Graphene-Enhanced Fluoroelastomer Composites for Advanced Applications.

Ramon Mendonça Teles¹, Daiana Cristina Metz Arnold¹, Marco Antônio Siqueira Rodrigues¹

¹Graduate Program in Materials Technology and Industrial Processes, Feevale University, Av. Edgar Hoffmeister, No. 600, Pavilion No. 03, Room No. 02, Valetec, Campo Bom, RS 93700-000, Brazil.

|March 16, 2026

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A new solvent-assisted method improves graphene dispersion in fluoroelastomer composites, significantly enhancing thermal stability and mechanical properties for demanding applications.

Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Fluoroelastomers offer excellent resistance to extreme conditions.
Graphene incorporation can boost composite performance but faces dispersion challenges.
Efficient graphene dispersion is key to unlocking advanced fluoroelastomer composite properties.

Purpose of the Study:

To develop and evaluate a solvent-assisted method for improved graphene dispersion in fluoroelastomers.
To compare the performance of graphene-reinforced fluoroelastomers prepared by melt blending versus solvent-assisted methods.
To characterize the impact of graphene loading and dispersion method on composite properties.

Main Methods:

Synthesis of fluoroelastomer composites with varying graphene content (1, 2, 3 phr) using melt blending and solvent-assisted methods (acetonitrile).

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Characterization using FT-IR, SEM, EDS, TGA, DMA, Shore A hardness, and tensile testing.

Comparative analysis of material properties based on graphene dispersion techniques.

Main Results:

Solvent-assisted method yielded improved graphene dispersion, evidenced by SEM.
Composites with 2-3 phr graphene via solvent method showed up to 38% increase in degradation resistance (TGA).
Solvent-assisted 3 phr graphene composites exhibited higher glass transition temperature (Tg) and energy dissipation (DMA), improved tensile strength (21.74 MPa), and reduced hardness.

Conclusions:

The solvent-assisted method effectively enhances graphene dispersion in fluoroelastomers.
Improved dispersion leads to restricted chain mobility and efficient stress transfer, boosting composite performance.
This research highlights a viable strategy for creating high-performance fluoroelastomer composites for advanced material applications.