| 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 |
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| 引用本文： | 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. |
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| 作者姓名： | 李仁爱 张凯丽 陈广学 |
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| 作者单位： | 华南理工大学制浆造纸国家重点实验室,广东广州,510641;华南理工大学制浆造纸国家重点实验室,广东广州,510641;华南理工大学制浆造纸国家重点实验室,广东广州,510641 |
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| 基金项目： | 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 |
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| 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。
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| 关 键 词： | 导电水凝胶 导电离子 电容器传感器 |
| 收稿时间： | 2019-04-26 |
A Highly Transparent,Stretchable,Conductive Hydrogel for Capacitive Sensor |
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| 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. |
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| Authors: | LI Ren'ai ZHANG Kaili CHEN Guangxue |
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| Affiliation: | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, Guangdong, P. R. China |
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| 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. |
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| Keywords: | conductive hydrogel conductive ions capacitive sensor |
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