Abstract
Changes in physicochemical parameters, such as resistivity, viscosity, and density, and the formation of gaseous products (Đ2, ĐĄĐ4, ĐĄ2Đ4, ĐĄ2Đ6, ĐĄ3Đ8, ĐĄ4Đ10, ĐĄ5Đ12, and ĐĄ6Đ14) depending on the absorbed dose in the range of 29.7â237.6 kGy have been studied. It has been found that the chemical composition of transformer oil is changed by Îł-irradiation and this change is accompanied by changes in the resistivity, viscosity, and density of the oil. The degree of conversion depends on the absorbed dose and increases with it. The IR spectra exhibit =ĐĄâĐ stretching vibrations, âĐĄ=ĐĄ in-plane bending vibrations, and âĐĄĐ out-of-plane bending vibrations in aromatic compounds. In addition, âĐĄâĐ stretching vibrations andâĐĄâĐĄĐ3 bending vibrations (antisymmetric and symmetric) in alkanes are observed. The IR absorption spectra have been observed in the ranges of $${\Delta }{{\lambda }_{1}} = 2800 - 3300\,{\text{c}}{{{\text{m}}}^{{ - 1}}},$$$${\Delta }{{\lambda }_{2}} = 2000~\,{\text{c}}{{{\text{m}}}^{{ - 1}}},$$$${\Delta }{{\lambda }_{3}} = 1350 - 1450\,\,{\text{c}}{{{\text{m}}}^{{ - 1}}}$$, and $${\Delta }{{\lambda }_{4}} = 600 - 1200~\,\,{\text{c}}{{{\text{m}}}^{{ - 1}}}.$$ The absorption band at $${\Delta }{{\lambda }_{4}} = 600 - 1200~\,{\text{c}}{{{\text{m}}}^{{ - 1}}}$$ is a diffuse part of the spectrum, which includes a number of weak absorption bands.
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