Efficient Solution Blow Spinning of PAN-CNTs Nanofiber-Based Pressure Sensors with Sandwich Structures

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2024-09-19 DOI:10.1021/acs.langmuir.4c02111

Chao Song, Jinmeng Liu, Yanan Cao, Wenbin Li, Chong He

引用次数: 0

Abstract

High-performance sensors play a crucial role in smart wearable technology and human–machine interaction. However, traditional metal- and silicon-based sensors face drawbacks, including limited flexibility, high cost, degradation issues, and insufficient sensitivity. Conductive composite fibers were produced using the spinning solution of PAN and PVB mixed with CNTs and spun at a flow rate of 20 mL·h^–1. PAN-CNTs fiber felt formed a sandwich structure by impregnating CNTs aqueous solution, mechanical pressing, and coating graphene. A cost-effective PAN-CNTs nanofiber-based pressure sensor (PCPS) was developed, demonstrating excellent flexibility, conductivity, sensitivity, mechanical properties, and biocompatibility. Nanofiber-based pressure sensors exhibited high sensitivity, with an approximately 75% relative resistance change under a 1 N pressure load. They can withstand 360° bending and have a rapid response time of about 160 ms. PCPS holds significant potential for flexible electronics, smart wearables, and micropressure detection.

Abstract Image

查看原文本刊更多论文

高效溶液吹制具有夹层结构的 PAN-CNT 纳米纤维压力传感器

高性能传感器在智能可穿戴技术和人机交互中发挥着至关重要的作用。然而，传统的金属和硅基传感器面临着灵活性有限、成本高、降解问题和灵敏度不足等缺点。利用 PAN 和 PVB 与 CNTs 混合的纺丝溶液，并以 20 mL-h-1 的流速纺丝，生产出了导电复合纤维。通过浸渍 CNTs 水溶液、机械压制和涂覆石墨烯，PAN-CNTs 纤维毡形成了夹层结构。开发出了一种经济高效的基于 PAN-CNTs 纳米纤维的压力传感器（PCPS），具有出色的柔韧性、导电性、灵敏度、机械性能和生物相容性。基于纳米纤维的压力传感器具有很高的灵敏度，在 1 N 的压力负荷下，其相对电阻变化约为 75%。它们可以承受 360° 的弯曲，并具有约 160 毫秒的快速响应时间。PCPS 在柔性电子器件、智能可穿戴设备和微压力检测方面具有巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).