一种高透明、可拉伸导电水凝胶的制备及其在电容传感器中的应用

doi:10.7517/issn.1674-0475.190411

影像科学与光化学 ›› 2019, Vol. 37 ›› Issue (4): 267-273.DOI: 10.7517/issn.1674-0475.190411

一种高透明、可拉伸导电水凝胶的制备及其在电容传感器中的应用

李仁爱, 张凯丽, 陈广学

华南理工大学制浆造纸国家重点实验室, 广东广州 510641

收稿日期:2019-04-26 出版日期:2019-07-15 发布日期:2019-07-15
通讯作者: 陈广学
基金资助:
广东省科技计划项目（2017B090901064）和广州市科技计划科学研究专项重点项目（201607020045）资助

A Highly Transparent, Stretchable, Conductive Hydrogel for Capacitive Sensor

LI Ren'ai, ZHANG Kaili, CHEN Guangxue

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, Guangdong, P. R. China

Received:2019-04-26 Online:2019-07-15 Published:2019-07-15

摘要/Abstract

摘要： 导电水凝胶由于具备良好的电学特性、可调节的机械性能、易于加工性和生物相容性等，是制备柔性电子设备的理想基材。本文使用马来酸与丙烯酰胺作为共聚单体，氯化锂作为导电离子，N，N'-二甲基双丙烯酰胺作为交联剂，使用光引发剂，采用原位光聚合的方式制备了一种导电水凝胶。制得的水凝胶可见光透过率高达93%，最大拉伸形变~380%，导电率最大为12 S/m。鉴于其优异的综合性能，实验中使用导电水凝胶制备了电容传感器并应用于人体活动监测。结果表明，制备的导电水凝胶电容传感器对不同程度的手指弯曲形变和不同力度的手指触碰均表现出灵敏的响应行为，为未来可穿戴柔性电子产品的发展起到了一定的推动作用。

关键词: 导电水凝胶, 导电离子, 电容器传感器

Abstract: Conductive hydrogels are ideal substrates for the preparation of flexible electronic devices due to their good electrical properties, tunable mechanical properties, ease of processing and biocompatibility. In this paper, maleic acid and acrylamide were used as comonomers, lithium chloride was used as the conductive ion, and N,N-dimethylbisacrylamide was used as the crosslinking agent to prepare conductive hydrogel by in-situ photopolymerization. The prepared hydrogel has a visible light transmittance of 93%, a maximum tensile deformation of~380%, and a maximum conductivity of 12 S/m. In view of its excellent comprehensive performance, a capacitive sensor was prepared using conductive hydrogel in the experiment and applied to human activity monitoring.The results showed that the prepared conductive hydrogel capacitive sensor exhibited sensitive response behaviors such as different degrees of finger bending deformation and finger touch of different strengths. Our method would play a role in promoting the development of wearable flexible electronics in future.

Key words: conductive hydrogel, conductive ions, capacitive sensor

李仁爱, 张凯丽, 陈广学. 一种高透明、可拉伸导电水凝胶的制备及其在电容传感器中的应用[J]. 影像科学与光化学, 2019, 37(4): 267-273.

LI Ren'ai, ZHANG Kaili, CHEN Guangxue. A Highly Transparent, Stretchable, Conductive Hydrogel for Capacitive Sensor[J]. Imaging Science and Photochemistry, 2019, 37(4): 267-273.

参考文献

[1] Li L, Lou Z, Chen D, Jiang K, Han W, Shen G. Recent advances in flexible/stretchable supercapacitors for wearable electronics[J]. Small, 2018, 14(43):1702829.
[2] Zeng W, Shu L, Li Q, Chen S, Wang F, Tao X M. Fiber-based wearable electronics:a review of materials, fabrication, devices, and applications[J]. Advanced Materials, 2014, 26(31):5310-5336.
[3] He Q Y, Sudibya H G, Yin Z Y, Wu S X, Li H, Boey F, Huang W, Chen P, Zhang H. Centimeter-long and large-scale micropatterns of reduced graphene oxide films:fabrication and sensing applications[J]. ACS Nano, 2010, 4(6):3201-3208.
[4] Liu J, Zeng Z, Cao X, Lu G, Wang L H, Fan Q L, Huang W, Zhang H. Preparation of MoS₂-polyvinylpyrrolidone nanocomposites for flexible nonvolatile rewritable memory devices with reduced graphene oxide electrodes[J]. Small, 2012, 8(22):3517-3522.
[5] Liu J, Yin Z, Cao X, Zhao F, Wang L, Huang W, Zhang H. Fabrication of flexible, all-reduced graphene oxide non-volatile memory devices[J]. Advanced Materials, 2013, 25(2):233-238.
[6] Trung T Q, Lee N. Recent progress on stretchable electronic devices with intrinsically stretchable components[J].Advanced Materials, 2017, 29(3):1603167.
[7] Kim C C, Lee H H, Oh K H, Sun J Y. Highly stretchable, transparent ionic touch panel[J].Science, 2016, 353(6300):682-687.
[8] Lee H R, Kim C C, Sun J Y. Stretchable ionics-a promising candidate for upcoming wearable devices[J].Advanced Materials, 2018, 30(42):1704403.
[9] Wang H F, Wang Z Y, Yang J, Chen X, Zhang Q, Peng Z C. Ionic gels and their applications in stretchable electronics[J].Macromolecular Rapid Communications, 2018, 39(16):1800246.
[10] Yuk H W, Lin S T, Ma C, Takaffoli M, Fang N X, Zhan X H. Hydraulic hydrogel actuators and robots optically and sonically camouflaged in water[J]. Nature Communications, 2017, 8:14230.
[11] Shi L, Zhu T X, Gao G X, Zhang X Y, Wei W, Liu W F, Ding S J. Highly stretchable and transparent ionic conducting elastomers[J]. Nature Communications, 2018, 9(1):2630.
[12] Sun J Y, Keplinger C, Whitesides G M, Suo Z G. Ionic skin[J]. Advanced Materials, 2014, 26(45):7608-7614.
[13] Keplinger C, Sun J Y, Foo C C, Rothemund P, Whitesides G M, Suo Z G. Stretchable, transparent, ionic conductors[J]. Science, 2013, 341(6149):984-987.

一种高透明、可拉伸导电水凝胶的制备及其在电容传感器中的应用

A Highly Transparent, Stretchable, Conductive Hydrogel for Capacitive Sensor

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