About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanocomposite Materials: Innovations in Design, Fabrication, and Applications
|
| Presentation Title |
Equilibrium Sorption and Solvent Resistance of Fully Biobased and Graphene-Reinforced Polyurethane Composites |
| Author(s) |
Nyaknno Udo Udokpoh, Efosa Obazee, David Ogbeifun, Felix Okieimen |
| On-Site Speaker (Planned) |
Nyaknno Udo Udokpoh |
| Abstract Scope |
The solvent resistance of polyurethane materials is an important property influencing their long-term performance, durability, and applicability in chemical environments. Consequently, increasing attention has been directed toward the development of sustainable polyurethanes with improved barrier properties and reduced solvent uptake. In this study, the equilibrium sorption behaviour of fully biobased, conventional, and graphene-reinforced polyurethanes was investigated using water, ethanol, and toluene as probe solvents. Fully biobased polyurethane was synthesized from rubber seed oil-derived precursors, while conventional polyurethane was prepared from polypropylene glycol (PPG) and toluene diisocyanate (TDI). Graphene-reinforced composites containing 0.1 wt.% graphene were prepared through ultrasonic dispersion. Solvent uptake followed the order: toluene > ethanol > water for all samples. The fully biobased polyurethane exhibited higher solvent sorption, whereas graphene incorporation significantly reduced solvent uptake due to improved barrier properties. The findings suggest that graphene-reinforced fully biobased polyurethane composites are promising materials for protective coatings and sealant applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Environmental Effects, Polymers |