| 聚乙烯醇/聚吡咯复合导电水凝胶应变传感器的制备及性能 |
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| 引用本文： | 王杰,李莹,邵亮,白阳,马忠雷,马建中.聚乙烯醇/聚吡咯复合导电水凝胶应变传感器的制备及性能[J].高等学校化学学报,2021,42(3):929-936. |
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| 作者姓名： | 王杰 李莹 邵亮 白阳 马忠雷 马建中 |
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| 作者单位： | 陕西科技大学化学与化工学院,陕西省轻化工助剂重点实验室,中国轻工业轻化工助剂重点实验室,西安710021;绵阳京东方光电科技有限公司,绵阳621000;陕西科技大学轻工科学与工程学院,西安710021 |
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| 基金项目： | 陕西省教育厅服务地方专项计划项目(批准号:19JC003);西安市科技计划项目(批准号:2019216514GXRC001CG002-GXYD1.2);西安市未央区科技计划项目(批准号:201859)资助. |
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| 摘 要： | 以聚乙烯醇(PVA)为原料, 植酸(PA)和氨基-聚倍半硅氧烷(NH2-POSS， NP)为交联剂, 通过冻融循环法制得PVA/PA/NP复合水凝胶, 再以其为模板, 通过吡咯的原位聚合制得PVA/PA/NP-PPy复合导电水凝胶, 克服了聚吡咯材料易脆、 疏水的特性, 进一步改善了水凝胶的导电性和灵敏性. 循环拉伸实验结果表明该水凝胶具有良好的自回复能力, 电导率高达7.53 S/m, 从I-V曲线可知其作为柔性可穿戴应变传感器的最高检测电流可达 9.029 mA, 灵敏度因子可达6.796, I-T曲线表明该传感器可以准确地通过电流信号变化来监测人体的各种微小运动.
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| 关 键 词： | 聚乙烯醇 聚吡咯 导电水凝胶 应变传感器 |
| 收稿时间： | 2020-07-21 |
Preparation and Properties of Poly(vinyl alcohol)/polypyrrole Composite Conductive Hydrogel Strain Sensor |
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| WANG Jie,LI Ying,SHAO Liang,BAI Yang,MA Zhonglei,MA Jianzhong.Preparation and Properties of Poly(vinyl alcohol)/polypyrrole Composite Conductive Hydrogel Strain Sensor[J].Chemical Research In Chinese Universities,2021,42(3):929-936. |
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| Authors: | WANG Jie LI Ying SHAO Liang BAI Yang MA Zhonglei MA Jianzhong |
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| Institution: | 1.China Key Laboratory of Chemical Additives for Industry，Shaanxi Key Laboratory of Chemical Additives for Industry，College of Chemistry and Chemical Engineering，Shaanxi University of Science and Technology，Xi’an 710021，China;2.Mianyang BOE Optoelectronics Co. Ltd. ，Mianyang 621000，China;3.College of Bioresources Chemical and Materials Engineering，Shaanxi University of Science and Technology，Xi’an 710021，China |
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| Abstract: | PVA/PA/NP hydrogel was prepared via freeze-thaw cycle method using poly（vinyl alcohol）（PVA） as raw material， phytic acid（PA） and amino-polyhedral oligomeric silsesquioxane（NH2-POSS， NP） as cross-linking agents. Then， PVA/PA/NP-PPy composite conductive hydrogel was prepared by in?situ polymerization of pyrrole， which overcomed the fragile and hydrophobic characteristics of polypyrrole materials， and further improved the conductivity and sensitivity of hydrogels. The cyclic tensile curve prove that the hydrogel has good self-recovery ability， the conductivity is as high as 7.53 S/m. It can be seen from the I-V curves that the highest detection current of the hydrogel as a flexible strain sensor can reach 9.029 mA and the gauge factor can reach 6.796. The results show that it can accurately monitor many kinds of tiny movements of human body through the change of current signal. |
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| Keywords: | Poly(vinyl alcohol) Polypyrrole Conductive hydrogel Strain sensor |
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