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16.4: A multifunctional flexible resistive sensor with a Carbon Nanotube‐Liquid Crystal‐PDMS Composite
Author(s) -
Luo Miao,
Lu Jiangang
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.15072
Subject(s) - materials science , gauge factor , carbon nanotube , pressure sensor , elastomer , resistive touchscreen , composite number , composite material , optoelectronics , nanotechnology , tension (geology) , sensitivity (control systems) , ultimate tensile strength , electronic engineering , fabrication , electrical engineering , mechanical engineering , medicine , alternative medicine , pathology , engineering
A multifunctional flexible resistive sensor which integrates both pressure sensing and tension sensing functions is demonstrated with an active layer comprising of liquid crystal(LC), multi‐walled carbon nanotube (MWCNT), and polydimet hy‐lsiloxane(PDMS) elastomer. The introduction of LC improves the agglomeration of MWCNTs in PDMS and improves the performance of the sensor. The sensor shows a wide tensile sensing range of 140% strain and a good sensitivity with a gauge factor of 40 with tensile force, and shows good linearity and sensitivity under pressure. The sensor also shows good hydrophobic property which may help it to work under complex environment. The multifunctional sensor offers great potential applications in emerging wearable devices and electronic skins.