用于检测环氧树脂和玻璃纤维增强聚合物复合材料中盐酸和海水的光纤传感器。

Optical Fiber Sensors for the Detection of Hydrochloric Acid and Sea Water in Epoxy and Glass Fiber-Reinforced Polymer Composites.

作者信息

Bellot Cristian Marro, Sangermano Marco, Olivero Massimo, Salvo Milena

机构信息

Department of Applied Science and Technology, Politecnico di Torino, c.so duca degli Abruzzi 24,10129 Torino, Italy.

Department of Electronics and Telecommunication, Politecnico di Torino, c.so duca degli Abruzzi 24,10129 Torino, Italy.

出版信息

Materials (Basel). 2019 Jan 25;12(3):379. doi: 10.3390/ma12030379.

DOI:10.3390/ma12030379

PMID:30691069

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6384630/

Abstract

Optical fiber sensors (OFSs), which rely on evanescent wave sensing for the early detection of the diffusion of water and hydrochloric acid through glass fiber-reinforced polymers (GFRPs), have been developed and tested. Epoxy and GFRP specimens, in which these sensors were embedded, were subjected to tests in artificial sea water and hydrochloric acid. The sensors were able to detect the diffusion of chemicals through the epoxy and GFRP samples on the basis of a drop in the reflected signal from the tip of the optical sensor probe. Water and hydrochloric acid diffusion coefficients were calculated from gravimetric measurements and compared with the experimental response of the OFSs. Furthermore, mechanical tests were carried out to assess the influence of the sensors on the structural integrity of the GFRP specimens.

摘要

光纤传感器（OFSs）已被开发和测试，它依靠倏逝波传感来早期检测水和盐酸通过玻璃纤维增强聚合物（GFRPs）的扩散情况。将这些传感器嵌入的环氧树脂和GFRP样本，在人工海水和盐酸中进行了测试。基于光学传感器探头尖端反射信号的下降，这些传感器能够检测化学物质通过环氧树脂和GFRP样本的扩散。通过重量测量计算出水和盐酸的扩散系数，并与光纤传感器的实验响应进行比较。此外，还进行了力学测试，以评估传感器对GFRP样本结构完整性的影响。