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Updated: Sep 20, 2025
Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
Published on: November 7, 2016
Highly Elastic Melamine Graphene/MWNT Hybrid Sponge for Sensor Applications
Christos Fragkogiannis1, Apostolos Koutsioukis1, Vasilios Georgakilas1
1Department of Material Science, University of Patras, 26500 Patras, Greece.
This study presents a flexible, low-cost strain sensor made from a melamine sponge and graphene/carbon nanotubes. The novel composite demonstrates excellent piezoresistive properties for wearable electronics and electronic skin applications.
Area of Science:
- Materials Science
- Nanotechnology
- Sensor Technology
Background:
- Growing demand for multifunctional nanoelectronic devices like wearable monitors and electronic skin.
- Key requirements for stretchable/compressible strain sensors include flexibility, stability, sensitivity, and low cost.
Purpose of the Study:
- To develop a flexible, low-cost strain sensor.
- To investigate the characteristics of a composite material for strain sensing.
Main Methods:
- Combining a commercial melamine sponge with a graphene/carbon nanotubes hybrid.
- Doping the melamine sponge with the conductive hybrid material.
Main Results:
- The resulting composite exhibited excellent piezoresistive behavior.
- Achieved low resistivity of 22 kΩ m.
- Demonstrated high sensitivity of 0.050 kPa⁻¹ over a wide detection range (0–50 kPa).
Conclusions:
- The developed sensor meets the demands for flexibility, stability, sensitivity, and low cost.
- The graphene/carbon nanotubes-doped melamine sponge is a promising material for advanced strain sensors.
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