Back to Search
Start Over
Characterization of insulation papers using FTIR-ATR spectroscopy
- Source :
- Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", Vol 31, Iss 31, Pp 125-136 (2021)
- Publication Year :
- 2021
- Publisher :
- Electrical Engineering Institute Nikola Tesla, 2021.
-
Abstract
- The need to increase the productivity and capacity of power transformers has conditioned the production of insulating papers of a higher thermal class. For this purpose, various techniques of solid insulation modification were applied, which enable the increase in thermal and chemical stability of the insulating paper during the operation of the transformer. The applied additives, primarily dicyandiamide (DICY) and polyacrylamide (PAM), are one form of cellulose modification in the final stages of paper production. A significant difference between the papers is the nitrogen content in the paper, which is characterized by the addition of amine compounds (additives). The paper presents the application of infrared spectroscopy with totally attenuated reflection (FTIR-ATR) in the characterization of paper samples. The aim is to observe the difference between regularly kraft and thermally upgraded paper reflected in the presence or absence of characteristic functional groups for additives. The strip identification at 2194-2154 cm-1 confirmed the presence of dicyandiamide additives (DICY) in the spectrum of the sample of thermally upgraded paper, which is different compared with the spectrum of regular kraft paper.
Details
- Language :
- English, Serbian
- ISSN :
- 03508528 and 24061212
- Volume :
- 31
- Issue :
- 31
- Database :
- Directory of Open Access Journals
- Journal :
- Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5d73daed86514890b8faa775b0875f17
- Document Type :
- article
- Full Text :
- https://doi.org/10.5937/zeint31-34754