TY - JOUR
T1 - Bio-disintegrable elastic polymers for stretchable piezoresistive strain sensors
AU - Vahdani, Mostafa
AU - Mirjalali, Sheyda
AU - Razbin, Milad
AU - Abolpour Moshizi, Sajad
AU - Payne, David
AU - Kim, Jincheol
AU - Huang, Shujuan
AU - Asadnia, Mohsen
AU - Peng, Shuhua
AU - Wu, Shuying
PY - 2024/1/9
Y1 - 2024/1/9
N2 - The fast-growing usage of electronics is creating large amounts of e-waste (electronic waste), most of which are directly sent into landfills or incinerated as recycling is either impractical or too costly. Therefore, it is believed that degradable, environmentally friendly materials are the solution to this pressing issue. Herein, disintegrable, durable, and highly stretchable strain sensors are developed based on elastic thin films made of sodium carboxymethyl cellulose, glycerol, and polyvinyl alcohol. The polymer thin films show a failure strain up to ≈ 330% and low hysteresis (5.74% at the second cycle) when subjected to 50% cyclic strain, due to the formation of inter or intramolecular hydrogen bonds. Carbon nanofibers with Au thin film are deposited on the elastic thin film, resulting in highly stretchable piezoresistive strain sensors with a maximum gauge factor of 1.7. More interestingly, the as-developed sensors can be completely broken down in hot water (at ≈ 95 °C) within ≈ 25 min, indicating their remarkable disintegrability. This unique characteristic is expected to contribute to environmental sustainability. The applications of the sensor for joint bending recognition as well as physiological sign measurement have been demonstrated.
AB - The fast-growing usage of electronics is creating large amounts of e-waste (electronic waste), most of which are directly sent into landfills or incinerated as recycling is either impractical or too costly. Therefore, it is believed that degradable, environmentally friendly materials are the solution to this pressing issue. Herein, disintegrable, durable, and highly stretchable strain sensors are developed based on elastic thin films made of sodium carboxymethyl cellulose, glycerol, and polyvinyl alcohol. The polymer thin films show a failure strain up to ≈ 330% and low hysteresis (5.74% at the second cycle) when subjected to 50% cyclic strain, due to the formation of inter or intramolecular hydrogen bonds. Carbon nanofibers with Au thin film are deposited on the elastic thin film, resulting in highly stretchable piezoresistive strain sensors with a maximum gauge factor of 1.7. More interestingly, the as-developed sensors can be completely broken down in hot water (at ≈ 95 °C) within ≈ 25 min, indicating their remarkable disintegrability. This unique characteristic is expected to contribute to environmental sustainability. The applications of the sensor for joint bending recognition as well as physiological sign measurement have been demonstrated.
KW - bio-disintegrable
KW - stretchable
KW - strain sensors
KW - wearable electronic
KW - wearable electronics
UR - http://www.scopus.com/inward/record.url?scp=85181656891&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/DE190100311
U2 - 10.1002/adsu.202300482
DO - 10.1002/adsu.202300482
M3 - Article
SN - 2366-7486
JO - Advanced Sustainable Systems
JF - Advanced Sustainable Systems
ER -