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Superelastic, Macroporous Polystyrene-Mediated Graphene Aerogels for Active Pressure Sensing
Panpan Zhang1, Lingxiao Lv1, Zhihua Cheng1
1Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, China.
Chemistry, an Asian Journal
|February 9, 2016
Summary
Researchers developed lightweight, super-elastic 3D polystyrene/graphene aerogels using freezing-directed assembly. These advanced materials exhibit excellent mechanical and electrical properties for versatile applications.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- 3D graphene-based polymer aerogels are vital for advanced applications.
- Challenges exist in achieving uniform polymer dispersion and compatibility within graphene matrices.
Purpose of the Study:
- To develop 3D macroporous polystyrene/graphene aerogels (MPS-GAs) with enhanced mechanical and electrical properties.
- To overcome limitations in polymer dispersion and compatibility in graphene aerogels.
Main Methods:
- Utilized freezing-directed assembly of graphene with surfactant assistance.
- Fabricated 3D macroporous polystyrene/graphene aerogels (MPS-GAs).
Main Results:
- Achieved lightweight, super-elastic (80% strain) MPS-GAs with high strength (80.5 kPa).
- Demonstrated good electrical properties and excellent electromechanical performance.
- Observed stable cyclic resilient properties and sensitive resistance responses.
Conclusions:
- The developed MPS-GAs exhibit superior properties for various applications.
- These aerogels are promising for actuators, elastic conductors, strain/pressure sensors, and wearable devices.
