Ultrastretchable and adhesive agarose/Ti3C2Tx-crosslinked-polyacrylamide double-network hydrogel for strain sensor

Tingrui Lin; Shuangxiao Li; Yang Hu; Lang Sheng; Xibang Chen; Xueyan Que; Jing Peng; Huiling Ma; Jiuqiang Li; Maolin Zhai

doi:10.1016/j.carbpol.2022.119506

Ultrastretchable and adhesive agarose/Ti₃C₂T_x-crosslinked-polyacrylamide double-network hydrogel for strain sensor

Carbohydr Polym. 2022 Aug 15:290:119506. doi: 10.1016/j.carbpol.2022.119506. Epub 2022 Apr 22.

Authors

Tingrui Lin¹, Shuangxiao Li², Yang Hu², Lang Sheng², Xibang Chen³, Xueyan Que², Jing Peng⁴, Huiling Ma⁵, Jiuqiang Li², Maolin Zhai⁶

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Fujian Key Laboratory of Architectural Coating, Skshu Paint Co., Ltd., 518 North Liyuan Avenue, Licheng District, Putian, Fujian 351100, China.
² Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
³ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Institute of Chemical Defense, Beijing 100191, China.
⁴ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. Electronic address: jpeng@pku.edu.cn.
⁵ School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
⁶ Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. Electronic address: mlzhai@pku.edu.cn.

PMID: 35550781
DOI: 10.1016/j.carbpol.2022.119506

Abstract

A novel agarose/Ti₃C₂T_x-crosslinked-polyacrylamide (AG/T-PAM) double-network (DN) hydrogel is synthesized by combining heating-cooling and γ-ray radiation-induced polymerization. The AG/T-PAM DN hydrogel possesses excellent mechanical properties with 4250% stretchability, and good adhesion to different substrates, such as an adhesive strength of 1148 kPa to copper at 30 °C. The resultant hydrogel also exhibits excellent tensile and compression sensing properties due to the variation of conductive network within hydrogel. The flexible and wearable strain sensor composed of the AG/T-PAM DN hydrogel presents rapid response to strain withstand 1000 cycles, and can monitor various movements of human body with a high sensibility. The AG/T-PAM DN hydrogel-based strain sensor will have broad application in large-scale strain detection scenarios requiring high sensitivity and adhesion.

Keywords: Agarose; Double-network hydrogel; MXene; Polyacrylamide; Radiation synthesis; Strain sensor.

MeSH terms

Acrylic Resins
Adhesives / chemistry
Electric Conductivity
Humans
Hydrogels* / chemistry
Sepharose
Titanium
Wearable Electronic Devices*

Substances

Acrylic Resins
Adhesives
Hydrogels
polyacrylamide
Sepharose
Titanium