Water uptake in thin nylon 6 films as measured by electrochemical impedance spectroscopy and magnetic resonance imaging

N.J.W. Reuvers, H.P. Huinink, O.C.G. Adan, S.J. Garcia, J.M.C. Mol

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)
1 Downloads (Pure)

Abstract

Electrochemical impedance spectroscopy (EIS) and magnetic resonance imaging (MRI) are used to measure water uptake in nylon 6 films. Based on the EIS data the uptake process is split into three stages. At first, during the first 3 h, the spectrum is mainly capacitive due to the dry bottom part of the film. The existence of a dry bottom part is confirmed by the MRI measurements. In the second stage EIS shows that small traces of water reach the substrate, whereas MRI still not detects water at the nylon/substrate interface. This demonstrates the sensitivity of EIS as water at the substrate is detected by EIS before MRI is able to do so. The last stage starts as the waterfront reaches the substrate and the amount of water in the nylon at the substrate increases. MRI shows that the bulk of the water ingresses into the nylon film as a sharp front. A simple capacitance model is able to link this ingressing front to the impedance as measured with EIS at high frequency. The detection of water breakthrough and interface processes by EIS illustrates the complementarity of the techniques. EIS is able to detect small traces of moisture reaching the substrate before the bulk amount of water does. MRI gives a better view on the overall water distribution during uptake. --------------------------------------------------------------------------------
Original languageEnglish
Pages (from-to)219-228
JournalElectrochimica Acta
Volume94
DOIs
Publication statusPublished - 2013

Fingerprint

Magnetic resonance
Electrochemical impedance spectroscopy
Imaging techniques
Water
Nylons
Substrates
nylon 6
Capacitance
Moisture

Cite this

@article{03dd301ee38947b7b907df6df2e773a0,
title = "Water uptake in thin nylon 6 films as measured by electrochemical impedance spectroscopy and magnetic resonance imaging",
abstract = "Electrochemical impedance spectroscopy (EIS) and magnetic resonance imaging (MRI) are used to measure water uptake in nylon 6 films. Based on the EIS data the uptake process is split into three stages. At first, during the first 3 h, the spectrum is mainly capacitive due to the dry bottom part of the film. The existence of a dry bottom part is confirmed by the MRI measurements. In the second stage EIS shows that small traces of water reach the substrate, whereas MRI still not detects water at the nylon/substrate interface. This demonstrates the sensitivity of EIS as water at the substrate is detected by EIS before MRI is able to do so. The last stage starts as the waterfront reaches the substrate and the amount of water in the nylon at the substrate increases. MRI shows that the bulk of the water ingresses into the nylon film as a sharp front. A simple capacitance model is able to link this ingressing front to the impedance as measured with EIS at high frequency. The detection of water breakthrough and interface processes by EIS illustrates the complementarity of the techniques. EIS is able to detect small traces of moisture reaching the substrate before the bulk amount of water does. MRI gives a better view on the overall water distribution during uptake. --------------------------------------------------------------------------------",
author = "N.J.W. Reuvers and H.P. Huinink and O.C.G. Adan and S.J. Garcia and J.M.C. Mol",
year = "2013",
doi = "10.1016/j.electacta.2013.01.135",
language = "English",
volume = "94",
pages = "219--228",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier",

}

Water uptake in thin nylon 6 films as measured by electrochemical impedance spectroscopy and magnetic resonance imaging. / Reuvers, N.J.W.; Huinink, H.P.; Adan, O.C.G.; Garcia, S.J.; Mol, J.M.C.

In: Electrochimica Acta, Vol. 94, 2013, p. 219-228.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Water uptake in thin nylon 6 films as measured by electrochemical impedance spectroscopy and magnetic resonance imaging

AU - Reuvers, N.J.W.

AU - Huinink, H.P.

AU - Adan, O.C.G.

AU - Garcia, S.J.

AU - Mol, J.M.C.

PY - 2013

Y1 - 2013

N2 - Electrochemical impedance spectroscopy (EIS) and magnetic resonance imaging (MRI) are used to measure water uptake in nylon 6 films. Based on the EIS data the uptake process is split into three stages. At first, during the first 3 h, the spectrum is mainly capacitive due to the dry bottom part of the film. The existence of a dry bottom part is confirmed by the MRI measurements. In the second stage EIS shows that small traces of water reach the substrate, whereas MRI still not detects water at the nylon/substrate interface. This demonstrates the sensitivity of EIS as water at the substrate is detected by EIS before MRI is able to do so. The last stage starts as the waterfront reaches the substrate and the amount of water in the nylon at the substrate increases. MRI shows that the bulk of the water ingresses into the nylon film as a sharp front. A simple capacitance model is able to link this ingressing front to the impedance as measured with EIS at high frequency. The detection of water breakthrough and interface processes by EIS illustrates the complementarity of the techniques. EIS is able to detect small traces of moisture reaching the substrate before the bulk amount of water does. MRI gives a better view on the overall water distribution during uptake. --------------------------------------------------------------------------------

AB - Electrochemical impedance spectroscopy (EIS) and magnetic resonance imaging (MRI) are used to measure water uptake in nylon 6 films. Based on the EIS data the uptake process is split into three stages. At first, during the first 3 h, the spectrum is mainly capacitive due to the dry bottom part of the film. The existence of a dry bottom part is confirmed by the MRI measurements. In the second stage EIS shows that small traces of water reach the substrate, whereas MRI still not detects water at the nylon/substrate interface. This demonstrates the sensitivity of EIS as water at the substrate is detected by EIS before MRI is able to do so. The last stage starts as the waterfront reaches the substrate and the amount of water in the nylon at the substrate increases. MRI shows that the bulk of the water ingresses into the nylon film as a sharp front. A simple capacitance model is able to link this ingressing front to the impedance as measured with EIS at high frequency. The detection of water breakthrough and interface processes by EIS illustrates the complementarity of the techniques. EIS is able to detect small traces of moisture reaching the substrate before the bulk amount of water does. MRI gives a better view on the overall water distribution during uptake. --------------------------------------------------------------------------------

U2 - 10.1016/j.electacta.2013.01.135

DO - 10.1016/j.electacta.2013.01.135

M3 - Article

VL - 94

SP - 219

EP - 228

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -