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Abstract

A Novel 3D Microporous Structure Hydrogel with Stable Mechanical Properties and High Elasticity and Its Application in Sensing †

Department of Machine Intelligence and Systems Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Akita 015-0055, Japan
*
Author to whom correspondence should be addressed.
Presented at the 2nd International Online Conference on Polymer Science—Polymers and Nanotechnology for Industry 4.0, 1–15 November 2021; Available online: https://iocps2021.sciforum.net/.
Mater. Proc. 2021, 7(1), 15; https://doi.org/10.3390/IOCPS2021-11212
Published: 20 October 2021

Abstract

:
Hydrogels have recently been increasingly studied due to their similarity to natural soft tissues. However, the stable mechanical properties and elasticity required for hydrogels used in sensing and wearable devices remain challenging. Herein, a novel 3D microporous structure hydrogel with favorable stable mechanical properties and elasticity is developed via a simple and economical method. The good resilience (94.5%) and lower residual strain (11.5%) are realized based on the results of 20 successive cycles at a strain of 300%. The elasticity of the hydrogel is achieved by varying the effective network chain density. The prepared hydrogel has stable mechanical properties and a high elasticity, resulting in remarkable performance when used in sensors. The hydrogel-based sensors can accurately and consistently record human activities when used as wearable sensors. This work provides a new way to simply and effectively prepare hydrogels, which has great potential to be widely applicated in sensing and flexible devices, such as health-recording sensors, wearable devices, and artificial intelligence.

Supplementary Materials

The supporting information can be downloaded at: https://www.mdpi.com/article/10.3390/IOCPS2021-11212/s1.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Not applicable.
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MDPI and ACS Style

Lu, C.; Qiu, J.; Sakai, E.; Zhang, G. A Novel 3D Microporous Structure Hydrogel with Stable Mechanical Properties and High Elasticity and Its Application in Sensing. Mater. Proc. 2021, 7, 15. https://doi.org/10.3390/IOCPS2021-11212

AMA Style

Lu C, Qiu J, Sakai E, Zhang G. A Novel 3D Microporous Structure Hydrogel with Stable Mechanical Properties and High Elasticity and Its Application in Sensing. Materials Proceedings. 2021; 7(1):15. https://doi.org/10.3390/IOCPS2021-11212

Chicago/Turabian Style

Lu, Chunyin, Jianhui Qiu, Eiichi Sakai, and Guohong Zhang. 2021. "A Novel 3D Microporous Structure Hydrogel with Stable Mechanical Properties and High Elasticity and Its Application in Sensing" Materials Proceedings 7, no. 1: 15. https://doi.org/10.3390/IOCPS2021-11212

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