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Highly Stretchable and Sensitive Strain Sensor with Porous Segregated Conductive Network.
ACS Appl Mater Interfaces 2019; 11(40):37094-37102AA

Abstract

Flexible strain sensors based on elastomeric conductive polymer composites (ECPCs) play an important role in wearable sensing electronics. However, the achievement of good conjunction between broad detection range and high sensitivity is still challenging. Herein, a highly stretchable and sensitive strain sensor was developed with the formation of porous segregated conductive network in the carbon nanotube/thermoplastic polyurethane composite via a facile and nontoxic compression-molding plus salt-leaching method. The strain sensor with porous segregated conductive network exhibited perfect combination of ultrawide sensing range (800% strain), large sensitivity (gauge factor of 356.4), short response time (180 ms) and recovery time (180 ms), as well as superior stability and durability. The integrated porous structure intensifies the deformation of segregated conductive network when tension strain is applied, which benefits enhancement of the sensitivity. Our sensor could monitor not only subtle oscillation and physiological signals but also energetic human motions efficiently, revealing promising potential applications in wearable motion monitoring systems. This work provides a unique and effective strategy for realizing ECPCs based strain sensors with excellent comprehensive sensing performances.

Authors+Show Affiliations

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableSchool of Materials Science and Engineering , Zhengzhou University , Zhengzhou 450001 , China.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31512856

Citation

Zhou, Chang-Ge, et al. "Highly Stretchable and Sensitive Strain Sensor With Porous Segregated Conductive Network." ACS Applied Materials & Interfaces, vol. 11, no. 40, 2019, pp. 37094-37102.
Zhou CG, Sun WJ, Jia LC, et al. Highly Stretchable and Sensitive Strain Sensor with Porous Segregated Conductive Network. ACS Appl Mater Interfaces. 2019;11(40):37094-37102.
Zhou, C. G., Sun, W. J., Jia, L. C., Xu, L., Dai, K., Yan, D. X., & Li, Z. M. (2019). Highly Stretchable and Sensitive Strain Sensor with Porous Segregated Conductive Network. ACS Applied Materials & Interfaces, 11(40), pp. 37094-37102. doi:10.1021/acsami.9b12504.
Zhou CG, et al. Highly Stretchable and Sensitive Strain Sensor With Porous Segregated Conductive Network. ACS Appl Mater Interfaces. 2019 Oct 9;11(40):37094-37102. PubMed PMID: 31512856.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Highly Stretchable and Sensitive Strain Sensor with Porous Segregated Conductive Network. AU - Zhou,Chang-Ge, AU - Sun,Wen-Jin, AU - Jia,Li-Chuan, AU - Xu,Ling, AU - Dai,Kun, AU - Yan,Ding-Xiang, AU - Li,Zhong-Ming, Y1 - 2019/09/25/ PY - 2019/9/13/pubmed PY - 2019/9/13/medline PY - 2019/9/13/entrez KW - carbon nanotube KW - human motion detection KW - porous segregated conductive network KW - strain sensor KW - thermoplastic polyurethane SP - 37094 EP - 37102 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 11 IS - 40 N2 - Flexible strain sensors based on elastomeric conductive polymer composites (ECPCs) play an important role in wearable sensing electronics. However, the achievement of good conjunction between broad detection range and high sensitivity is still challenging. Herein, a highly stretchable and sensitive strain sensor was developed with the formation of porous segregated conductive network in the carbon nanotube/thermoplastic polyurethane composite via a facile and nontoxic compression-molding plus salt-leaching method. The strain sensor with porous segregated conductive network exhibited perfect combination of ultrawide sensing range (800% strain), large sensitivity (gauge factor of 356.4), short response time (180 ms) and recovery time (180 ms), as well as superior stability and durability. The integrated porous structure intensifies the deformation of segregated conductive network when tension strain is applied, which benefits enhancement of the sensitivity. Our sensor could monitor not only subtle oscillation and physiological signals but also energetic human motions efficiently, revealing promising potential applications in wearable motion monitoring systems. This work provides a unique and effective strategy for realizing ECPCs based strain sensors with excellent comprehensive sensing performances. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/31512856/Highly_Stretchable_and_Sensitive_Strain_Sensor_with_Porous_Segregated_Conductive_Network_ L2 - https://dx.doi.org/10.1021/acsami.9b12504 DB - PRIME DP - Unbound Medicine ER -