Characterization of insulation papers using FTIR-ATR spectroscopy

The need to increase the productivity and capacity of power transformers has conditioned production insulating papers a higher thermal class. For this purpose, various techniques solid insulation modification were applied, which enable in chemical stability paper during operation transformer. applied additives, primarily dicyandiamide (DICY) polyacrylamide (PAM), are one form cellulose final stages production. A significant difference between is nitrogen content paper, characterized by addition amine compounds (additives). presents application infrared spectroscopy with totally attenuated reflection (FTIR-ATR) characterization samples. aim observe regularly kraft thermally upgraded reflected presence or absence characteristic functional groups for additives. strip identification at 2194-2154 cm-1 confirmed additives spectrum sample different compared regular paper.