Synthesis of percolative hyperelastic conducting composite and demonstrations of application in wearable strain sensors
2018
Abstract A hyperelastic percolative conductive composite is proposed with acetylene black (AB) as conductive filler introduced into Ecoflex® 00-30 elastomer matrix. The conductivity could be enhanced by several orders according to percolation theory and the Young’s modulus could also be tailored by modifying AB volume ratio. The AB-Ecoflex composite exhibits electric conductivity high as 6.4 S·m −1 and remains stable after 100 cycles at 200% strain. This composite with high conductivity, stretchability and stability shows high potential as a competitive candidate for wearable strain sensors to detect human body motions and for human-machine interface application.
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