Speakers - 2026

Title: Fabrication and characterization of new bio-based electrode polyurethane: Diverse conducting materials impacts such as graphene oxide, gold, and carbon nanotube

Abstract

This presentation discusses the fabrication and physicochemical characterization of a novel bio-based electrode polyurethane (PU) incorporated with different conductive nanomaterials, graphene oxide (GO), gold (Au), and carbon nanotube (CNT). The composites (PU/GO, PU/Au, and PU/CNT) were synthesized via a pre-polymerization approach to enhance the intrinsic electrical properties of polyurethane for advanced electrode applications. Structural interactions between PU and the conductive fillers were confirmed using Fourier Transform Infrared (FTIR) spectroscopy, showing characteristic amide (-NH) and urethane carbonyl (-C=O) groups with complete consumption of diisocyanate (-NCO), indicating successful polymer formation. Thermal behavior was evaluated using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), revealing improved thermal stability, particularly in the PU/GO composite. Morphological analysis using FESEM demonstrated homogeneous dispersion of conductive materials within the PU matrix. Electrochemical impedance spectroscopy (EIS) results showed enhanced conductivity in all composites, with PU/GO achieving the highest conductivity (3.68 × 10-3 S cm-1). These findings highlight the potential of bio-based conductive PU composites for sustainable electrode and flexible electronic applications in advanced material systems.

The audience take away from presentation:

• Understanding of Bio-Based Conductive Polyurethane Fabrication

They will learn how bio-based PU can be successfully engineered into conductive electrode materials using nanofillers such as graphene oxide, gold, and carbon nanotube through a pre-polymerization strategy.

• Structure–Property Relationship Insight

They will understand how molecular interactions (confirmed via FTIR) and filler dispersion influence thermal stability, morphology, and electrical conductivity of PU composites.

• Comparative Performance of Conductive Fillers

The audience will see clear evidence that PU/GO outperforms PU/Au and PU/CNT in terms of thermal stability and electrical conductivity, providing guidance on material selection for electrode design.

• Role of Multi-Technique Characterization

They will appreciate how DSC, TGA, FESEM, and EIS collectively validate composite performance and provide comprehensive material evaluation.

• Application Potential in Sustainable Electronics

They will recognize the potential of bio-based conductive PU composites for flexible electrodes, sensors, and green electronic systems aligned with sustainable material development.