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Materiale Plastice
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https://doi.org/10.37358/Mat.Plast.1964

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Materiale Plastice (Mater. Plast.), Year 2019, Volume 56, Issue 1, 129-132

https://doi.org/10.37358/MP.19.1.5137

Adriana-Mariana Bors, Daniel Lingvay, Alina-Ruxandra Caramitu, Iulian Iordache, Iosif Lingvay

Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers


Abstract:
In order to evaluate the behavior in various electrical applications, the main mechanical and electrical characteristics of three different varieties of specifically chosen lacquers - based on alkyl-epoxy-melamine copolymer, the epoxy polymer and polyurethane were compared. From the mechanical determinations, it was found that at ambient temperature the polyurethane lacquer bending resistance was approximately equal to that of the epoxy lacquer and about 6.5 times higher that of the alkyl-epoxy-melamine copolymer. It has also been shown that at bending force of less than 150 Nm the investigated polyurethane lacquer has relatively large deformations of 0.4 mm / kN, which indicates a high capacity to take over relatively high deformations of the metal support (due to thermal expansion from various applications) without significant increasing mechanical stress. The recorded values for the alkyl-epoxy-melamine-based copolymer lacquer and the pure epoxy lacquer are 0.11 mm / kN and 0.03 mm / kN respectively. Determinations by dielectric spectroscopy have shown that at frequencies below 250 Hz the dielectric losses tgd for the epoxy and polyurethane lacquers are approximately equal and are about 2.9 times lower than for the alkyl-epoxy-melamine copolymer lacquer. It was also found that at frequencies higher than 250 Hz the investigated materials behave differently, respectively at the frequency increase up to 10 kHz, the dielectric loss tgd of the polyurethane lacquer remains constant at about 0.0045 in contrast to the epoxide lacquer at which the dielectric loss tgd increases monotone to 0.0095 at 10 kHz, respectively of the alkyl-epoxy-melamine copolymer at which the dielectric loss tgd is approximately constant 0.012 in the 250 Hz-10 kHz range.


Keywords:
lacquers; dielectric loss; resistivity; bending force; hardness

Issue: 2019 Volume 56, Issue 1
Pages: 129-132
Publication date: 30/03/2019
https://doi.org/10.37358/MP.19.1.5137
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
BORS, A., LINGVAY, D., CARAMITU, A., IORDACHE, I., LINGVAY, I., Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers, Mater. Plast., 56(1), 2019, 129-132.

Vancouver
Bors A, Lingvay D, Caramitu A, Iordache I, Lingvay I. Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers. Mater. Plast.[internet]. 2019 Jan;56(1):129-132. Available from: https://doi.org/10.37358/MP.19.1.5137


APA 6th edition
Bors, A., Lingvay, D., Caramitu, A., Iordache, I. & Lingvay, I. (2019). Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers. Materiale Plastice, 56(1), 129-132. https://doi.org/10.37358/MP.19.1.5137


Harvard
Bors, A., Lingvay, D., Caramitu, A., Iordache, I., Lingvay, I. (2019). 'Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers', Materiale Plastice, 56(1), pp. 129-132. https://doi.org/10.37358/MP.19.1.5137


IEEE
A. Bors, D. Lingvay, A. Caramitu, I. Iordache, I. Lingvay, "Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers". Materiale Plastice, vol. 56, no. 1, pp. 129-132, 2019. [online]. https://doi.org/10.37358/MP.19.1.5137


Text
Adriana-Mariana Bors, Daniel Lingvay, Alina-Ruxandra Caramitu, Iulian Iordache, Iosif Lingvay,
Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers,
Materiale Plastice,
Volume 56, Issue 1,
2019,
Pages 129-132,
ISSN 2668-8220,
https://doi.org/10.37358/MP.19.1.5137.
(https://revmaterialeplastice.ro/Articles.asp?ID=5137)
Keywords: lacquers; dielectric loss; resistivity; bending force; hardness


RIS
TY - JOUR
T1 - Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers
A1 - Bors, Adriana-Mariana
A2 - Lingvay, Daniel
A3 - Caramitu, Alina-Ruxandra
A4 - Iordache, Iulian
A5 - Lingvay, Iosif
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2019
VL - 56
IS - 1
SP - 129
EP - 132
UR - https://doi.org/10.37358/MP.19.1.5137
KW - lacquers
KW - dielectric loss
KW - resistivity
KW - bending force
KW - hardness
ER -


BibTex
@article{MatPlast2019P129,
author = {Bors Adriana-Mariana and Lingvay Daniel and Caramitu Alina-Ruxandra and Iordache Iulian and Lingvay Iosif},
title = {Comparative Studies on the Electrical and Mechanical Behavior of Some Soldering and / or Impregnation Lacquers},
journal = {Materiale Plastice},
volume = {56},
number = {1},
pages = {129-132},
year = {2019},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.19.1.5137},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5137}
}

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