基于改性等离子体辅助电化学剥离石墨纳米片提高智能传感器标签传感性能

Enhancing Smart Sensor Tag Sensing Performance-Based on Modified Plasma-Assisted Electrochemical Exfoliated Graphite Nanosheet.

作者信息

Lin Tzu-Hsuan, Putranto Alan, Wang Yan-Ting, Yang Qing-Hao, Wu Ren-Jang, Liu Chia-Hao, Lin Che-Kuan, Chavali Murthy

机构信息

Department of Civil Engineering, National Central University, Taoyuan 32011, Taiwan.

Department of Civil Engineering, Ketapang State Polytechnic, Ketapang 78813, Indonesia.

出版信息

Polymers (Basel). 2022 Nov 22;14(23):5067. doi: 10.3390/polym14235067.

DOI:10.3390/polym14235067

PMID:36501464

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9737323/

Abstract

Water that penetrates through cracks in concrete can corrode steel bars. There is a need for reliable and practical seepage sensing technology to prevent failure and determine the necessary maintenance for a concrete structure. Therefore, we propose a modified plasma-assisted electrochemical exfoliated graphite (MPGE) nanosheet smart tag. We conducted a comparative study of standard and modified RFID smart tags with sensor technology for seepage detection in concrete. The performance of both smart tags was tested and verified for seepage sensing in concrete, characterized by sensor code and frequency values. Seepage was simulated by cracking the concrete samples, immersing them for a designated time, and repeating the immersing phase with increasing durations. The test showed that the modified smart tag with 3% MPGE and an additional crosslinking agent provided the best sensitivity compared with the other nanosheet compositions. The presence of 3D segregated structures on the smart tag's sensing area successfully enhanced the sensitivity performance of seepage detection in concrete structures and is expected to benefit structural health monitoring as a novel non-destructive test method.

摘要

渗入混凝土裂缝的水会腐蚀钢筋。需要可靠且实用的渗流传感技术来防止混凝土结构失效并确定必要的维护措施。因此，我们提出了一种改性等离子体辅助电化学剥离石墨（MPGE）纳米片智能标签。我们对标准和改性射频识别（RFID）智能标签与用于混凝土渗流检测的传感器技术进行了对比研究。通过传感器代码和频率值对两种智能标签在混凝土渗流传感方面的性能进行了测试和验证。通过对混凝土样品进行开裂、在指定时间内浸泡，并随着浸泡时间增加重复浸泡阶段来模拟渗流。测试表明，与其他纳米片成分相比，含有3% MPGE和额外交联剂的改性智能标签具有最佳灵敏度。智能标签传感区域上三维分离结构的存在成功提高了混凝土结构渗流检测的灵敏度性能，有望作为一种新型无损检测方法惠及结构健康监测。