Sensitive, High-Strain, High-Rate Bodily Motion Sensors Based on Graphene–Rubber Composites
Trinity College Dublin · University of Surrey
Abstract
Monitoring of human bodily motion requires wearable sensors that can detect position, velocity and acceleration. They should be cheap, lightweight, mechanically compliant and display reasonable sensitivity at high strains and strain rates. No reported material has simultaneously demonstrated all the above requirements. Here we describe a simple method to infuse liquid-exfoliated graphene into natural rubber to create conducting composites. These materials are excellent strain sensors displaying 10(4)-fold increases in resistance and working at strains exceeding 800%. The sensitivity is reasonably high, with gauge factors of up to 35 observed. More importantly, these sensors can effectively track dynamic…
Citation impact
- FWCI
- 32.50
- Percentile
- 100%
- References
- 66
Authors
11Topics & keywords
- Materials science
- Composite material
- Graphene
- Natural rubber
- Strain rate
- Strain (injury)
- Nanotechnology
- Affordable and clean energy