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为解决离子凝胶导电性能与力学性能难以兼顾的问题,采用溶剂挥发成膜并诱导纳米颗粒自 组装的方法,以热塑性聚氨酯(TPU)为基体、1‑丁基‑3‑甲基咪唑六氟磷酸(BMIMPF6)为离子液 体(IL)、埃洛石纳米管(HNT)为纳米填料,制备 TPU@IL@HNT 离子凝胶,并研究其微观结构、热 稳定性、力学性能及应变传感性能。结果表明:BMIMPF6可在 HNT 内外表面发生选择性吸附,自 组装形成有序离子传输通道;剪切诱导进一步促进 HNT 取向排列,提高了离子传输效率。经剪切处理的 TPU@IL@HNT 离子凝胶具有良好的电学性能,在 0~300% 应变范围内具有良好的线性响应,可实现人体关节运动和语音信号的实时监测。本研究为高性能柔性离子凝胶传感器的设计与制备提供了新的思路。
Abstract:To address the challenge of simultaneously achieving ionic conductivity and mechanical properties in ionogels, a method combining solvent evaporation-induced nanoparticle self-assembly is adopted. Thermoplastic polyurethane (TPU) is used as the matrix,1-butyl-3-methylimidazolium hexa‑fluorophosphate (BMIMPF6) is used as the ionic liquid (IL), and halloysite nanotubes (HNT) are used as the nanofiller to fabricate TPU@IL@HNT ionogels. Their microstructure, thermal stability, mechanical properties, and strain-sensing performance are investigated. The results show that BMIMPF6 selectively adsorbs onto the inner and outer surfaces of HNT and self-assembles into ordered ion transport channels. Shear-induced treatment further promotes the oriented alignment of HNT, thereby improving ion transport efficiency. The obtained sheared TPU@IL@HNT ionogel exhibits good electrical performance and shows a good linear response over a strain range of 0~300%, enabling real-time monitoring of human joint motion and voice signals. The results provide a new idea for the design and fabrication of high-performance flexible ionogel sensors.
[ 1] AMJADI M, KYUNG K U, PARK I, et al. Stretchable, skin-mountable, and wearable strain sensors and their potential applications: a review[J]. AdvancedFunctional Materials,2016,26(11):1678-1698.
[ 2] 王文博,朱世豪,陈泽宇,等 . 毫米波雷达与视觉融合在现代智慧交通目标检测中的研究综述[J]. 现代交通与冶金材料,2023,3(4):2-14.
[ 3] MAURYA D, KHALEGHIAN S, SRIRAMDAS R,et al. 3D printed graphene-based self-powered strain sensors for smart tires in autonomous vehicles[J]. Nature Communications,2020,11:5392.
[ 4] YUE Y, LI X Y, ZHAO Z F, et al. Stretchable flexible sensors for smart tires based on laser-induced graphene technology[J]. Soft Science,2023,3(2):13.
[ 5] MATSUZAKI R, TODOROKI A. Wireless flexible capacitive sensor based on ultra-flexible epoxy resin for strain measurement of automobile tires[J]. Sensors and Actuators A: Physical,2007,140(1):32-42.
[ 6] GAO K, ZHANG Z Y, WENG S, et al. Review of flexible piezoresistive strain sensors in civil structural health monitoring[J]. Applied Sciences,2022,12(19):9750.
[ 7] 张东昱,刘高,张晓宇,等 . 桥梁缆索智能监测多参量光纤传感器及其封装保护技术[J]. 现代交通与冶金材料,2024,4(5):69-74.
[ 8] 王强,罗瑞林,张辉,等 . 基于实桥服役感知的钢桥面板 肋 间 挠 度 特 性 分 析[J]. 现 代 交 通 与 冶 金 材 料 ,2025,5(S):121-125.
[ 9] KHARROUB S, LAFLAMME S, MADBOULY S,et al. Bio-based soft elastomeric capacitor for structural health monitoring applications[J]. Structural Health Monitoring,2015,14(2):158-167.
[10] KAWASAKI M, IWASA Y.‘Cut and stick’ ion gels[J]. Nature,2012,489(7417):510-511.
[11] CHEN N, ZHANG H Q, LI L, et al. Ionogel electrolytes for high-performance lithium batteries: a review[J].Advanced Energy Materials,2018,8(12):1702675.
[12] ZHANG M W, YU R, TAO X L, et al. Mechanically robust and highly conductive ionogels for soft ionotronics[J]. Advanced Functional Materials,2023,33(10):2208083.
[13] WANG Y, CHEN Y, GAO J W, et al. Highly conductive and thermally stable ion gels with tunable anisotropy and modulus[J]. Advanced Materials, 2016,28(13):2571-2578.
[14] ZHOU X Q, CHEN J J, ZHANG W W, et al. Flexible sensor based on self-assembly of halloysite nanotubes in ionic liquids/thermoplastic polyurethane composites[J]. Polymer Testing,2025,150:108931.
[15] WANG C H, DONG W B, LI P Q, et al. Reversible ion-conducting switch by azobenzene molecule with light-controlled sol-gel transitions of the PNIPAm iongel[J]. ACS Applied Materials & Interfaces,2020,
12(37):42202-42209.
[16] KATO T. Self-assembly of phase-segregated liquid crystal structures[J]. Science,2002,295(5564):2414-2418.
[17] NUGROHO W T, DONG Y, PRAMANIK A, et al.Co-influence of nanofiller content and 3D printing parameters on mechanical properties of thermoplastic polyurethane (TPU)/halloysite nanotube (HNT) nanocom‑
posites[J]. Nanomaterials,2023,13(13):1975.
基本信息:
DOI:10.3969/j.issn.2097-017X.2026.05.010
引用信息:
[1]周秀琪,彭雄奇.埃洛石纳米管增强离子凝胶及其传感应用[J],2026,(05):94-99.DOI:10.3969/j.issn.2097-017X.2026.05.010.
2026-07-07
2026
2026-09-15