Preparation and Properties of Poly(N-hydroxyethyl acrylamide)-Gelatin-Based Hydrogel Sensor

被引：0
作者：
Jiang M. [1 ]
Hao X. [2 ]
Ye L. [3 ]
Luo S. [1 ]
Ji F. [1 ]
机构：
[1] College of Chemical Engineering and Materials, Quanzhou Normal University, Fujian Engineering and Research Center of Green and Environment-Friendly Functional Footwear Materials, Quanzhou
[2] Nano Innovation Institute, Inner Mongolia Key Laboratory of Carbon Nanomaterials, Inner Mongolia University for Nationalities, Tongliao
[3] School of Pharmaceutical Sciences, Shandong University, Jinan
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2022年 / 38卷 / 07期
关键词：
Adhesion property; Anti-freezing property; Hydrogel; Sensor;
D O I：
10.16865/j.cnki.1000-7555.2022.0146
中图分类号：
学科分类号：
摘要：
Recently, hydrogel has shown great application prospects in the field of flexible wearable sensor, but the simultaneous realization of remarkable tensile, anti- freezing and adhesion features via a facile method remains challenging. In this work, based on intermolecular physical interactions, poly(N-hydroxyethyl acrylamide) (PHEAA) and gelatin (GE) were employed to prepare PHEAA-GE-EG-NaCl hydrogel by adding sodium chloride (NaCl) and ethylene glycol (EG) into the gel precursor solution via a facile "one- pot" method. The universal tensile machine (UTA), Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), rotational rheometer (DHR) and electrochemical workstation were used to characterize the structure and properties of hydrogels. The results show the tensile strain of PHEAA-GE- EG- NaCl hydrogel is 1567%. The PHEAA-GE- EG- NaCl hydrogel possesses outstanding anti- freezing capability, it can maintain the excellent stretchability (558%) and conductivity (0.21 S/m) at -30 °C. Meanwhile, PHEAA-GE-EG-NaCl hydrogel exhibits the excellent adhesion property to different substrates. More importantly, the PHEAA- GE- EG- NaCl hydrogel- based strain sensor has the excellent strain sensitivity and cyclic stability for both large strain and small strain, and it is capable of stably detecting and monitoring both large-scale human motions and subtle physiological signals in a wide temperature range (-30~25 ℃). Therefore, the PHEAA-GE-EG-NaCl hydrogel holds promising potentials as wearable sensor. © 2022, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
引用
收藏
页码：149 / 158and167
相关论文
共 15 条
  • [1] Bariya M, Nyein H Y Y, Javey A., Wearable sweat sensors, Nature Electronics, 1, pp. 160-171, (2018)
  • [2] Zhou J, Xu X, Xin Y, Et al., Coaxial thermoplastic elastomerwrapped carbon nanotube fibers for deformable and wearable strain sensors, Advanced Functional Materials, 28, (2018)
  • [3] Liu H, Wang L, Lin G, Et al., Recent progress in the fabrication of flexible materials for wearable sensor, Biomaterials Science, 10, pp. 614-632, (2022)
  • [4] Wang L, Xu T, Zhang X., Multifunctional conductive hydrogelbased flexible wearable sensors, TrAC Trends in Analytical Chemistry, 134, (2021)
  • [5] Jiang C, Zhu T, Liu H, Et al., A one-step aqueous route to prepare polyacrylonitrile-based hydrogels with excellent ionic conductivity and extreme low temperature tolerance, Journal of Materials Chemistry A, 8, pp. 22090-22099, (2020)
  • [6] Qiao H, Qi P, Zhang X, Et al., Multiple weak H-bonds lead to highly sensitive, stretchable, self-adhesive, and self-healing ionic sensors, ACS Applied Materials & Interfaces, 11, pp. 7755-7763, (2019)
  • [7] Ge G, Zhang Y, Shao J, Et al., Stretchable, transparent, and selfpatterned hydrogel-based pressure sensor for human motions detection, Advanced Functional Materials, 28, (2018)
  • [8] Liu S, Qiu Y, Yu W, Et al., Highly stretchable and self-healing strain sensor based on gellan gum hybrid hydrogel for human motion monitoring, ACS Applied Polymer Materials, 2, pp. 1325-1334, (2020)
  • [9] Wang Z, Chen J, Wang L, Et al., Flexible and wearable strain sensors based on tough and self-adhesive ion conducting hydrogels, Journal of Materials Chemistry B, 7, pp. 24-29, (2019)
  • [10] Yu Q, Qin Z, Ji F, Et al., Low-temperature tolerant strain sensors based on triple crosslinked organohydrogels with ultrastretchability, Chemical Engineering Journal, 404, (2021)
12