Physics and Astronomy Faculty Publications and Presentations
Document Type
Article
Publication Date
1-5-2025
Abstract
A graphene nanoflake (GNF)-enhanced elastomeric nanocomposite (G-EMC) is fabricated following an innovative, cost-effective, single-step, in situ shear exfoliation (ISE) method from low-cost bulk material, graphite, where uniform mixing happens simultaneously within the elastomer matrix. Electron microscopy, atomic force microscopy, and photo-induced force microscopy results show good dispersion of GNFs with exfoliation to a few layers and uniform distribution in the elastomer matrix. X-ray photoelectron spectroscopy analysis shows less than 1% oxygen-containing functional groups/impurity, enhanced bonding through the formation of edge sites as fracture occurs across the GNF basal plane, and pi-pi interactions with newly exfoliated planar basal plane surfaces of the GNFs. Raman spectroscopy results confirm the formation of GNFs with only a few layers of graphene formed by the ISE process. Fabricated 10 wt.% G-EMC nanocomposites show a 400%–500% increase in strength and fracture toughness. And 35 wt.% G-EMCs provide an electrical conductivity of 25.64 S m−1 and a sensor gauge factor of 45. The resulting intrinsic piezo resistivity of the fabricated nanocomposite has been exploited to fabricate a multi-functional wired and wireless sensor for detecting different body movements, speech, human vital functions, solvents, and biomolecules.
Recommended Citation
Rahman, Ashiqur, Abdur Rahman Bin Abdus Salam, Matthew G. Boebinger, Ahmed Touhami, Jennifer Lynch, and Ali Ashraf. "Elastomeric Nanocomposite with Solvent‐Free, One Step, In Situ Shear Exfoliation of Graphite to Graphene." Advanced Materials Interfaces (2025): 2400803. https://doi.org/10.1002/admi.202400803
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Publication Title
Advanced Materials Interfaces
DOI
https://doi.org/10.1002/admi.202400803
Comments
© 2025 The Author(s). Advanced Materials Interfaces published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.