Preparation and Application of Hydrophobic and Breathable Carbon Nanocoils/Thermoplastic Polyurethane Flexible Strain Sensors.

IF 4.4 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Nanomaterials Pub Date : 2025-03-17 DOI:10.3390/nano15060457

Yanming Sun, Yanchen Huang, Xiaoying Lu, Hao Song, Guoping Wang

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引用次数: 0

Abstract

The emphasis on physical activity and health monitoring has increased the demand for developing multifunctional, flexible sensors through straightforward methods. A hydrophobic, breathable, and flexible strain sensor was prepared using a filtration method, employing thermoplastic polyurethane (TPU) as a substrate, carbon nanocoils (CNCs) as conductive fillers, and polydimethylsiloxane (PDMS) as a binder. The sensing layer, prepared using the unique three-dimensional helical structure of carbon nanocoils, achieved a hydrophobic angle of 143° and rapidly changed the color of the pH test paper in 5 s. The sensor had a strain range of 40% and a gauge factor of 34, and achieved a linear fit of R² = 0.98 in the 5-35% strain range. The CNCs/TPU sensor exhibits high reliability and stability after 1000 tensile cycle tests. These favorable features ensure that the sensors are comfortable to wear and respond quickly and accurately to movements in all body parts, meeting the need for human motion detection.

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疏水透气碳纳米线圈/热塑性聚氨酯柔性应变传感器的制备与应用。

对身体活动和健康监测的重视增加了通过直接方法开发多功能、柔性传感器的需求。以热塑性聚氨酯（TPU）为衬底，碳纳米线圈（cnc）为导电填料，聚二甲基硅氧烷（PDMS）为粘结剂，采用过滤法制备了一种疏水、透气、柔性应变传感器。利用碳纳米线圈独特的三维螺旋结构制备的传感层实现了143°的疏水角，并在5 s内快速改变pH试纸的颜色。该传感器应变范围为40%，应变系数为34，在5-35%应变范围内实现R2 = 0.98的线性拟合。经过1000次拉伸循环测试，cnc /TPU传感器显示出高可靠性和稳定性。这些有利的特点确保了传感器穿着舒适，并对身体所有部位的运动做出快速准确的反应，满足了人体运动检测的需要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanomaterials NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

8.50

自引率

9.40%

发文量

3841

审稿时长

14.22 days

期刊介绍： Nanomaterials (ISSN 2076-4991) is an international and interdisciplinary scholarly open access journal. It publishes reviews, regular research papers, communications, and short notes that are relevant to any field of study that involves nanomaterials, with respect to their science and application. Thus, theoretical and experimental articles will be accepted, along with articles that deal with the synthesis and use of nanomaterials. Articles that synthesize information from multiple fields, and which place discoveries within a broader context, will be preferred. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental or methodical details, or both, must be provided for research articles. Computed data or files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Nanomaterials is dedicated to a high scientific standard. All manuscripts undergo a rigorous reviewing process and decisions are based on the recommendations of independent reviewers.