Choice of Antiozidants and Their Synergistic Effect Study Towards New Insulation Oil
In order to improve the oxidation stability of a new insulation oil derived from mineral oil and natural ester, the composite antioxidant used in the oil which were 2,6-ditert-butyl-4-methylphenol (T501) and high-purity alkylation-a-naphthylamine (L06) have been selected by using high pressure differential scanning calorimetry (PDSC), and the best concentration of the composite antioxidant in the oil was determined: 0.3％T501 + 0.3％ L06. PDSC test results show that the composite antioxidant can enhance the new insulation oil oxidation stability significantly, making the new insulation oil exhibit more remarkable anti-oxidative activity than mineral oil. T501 and L06 can not react with each other and this was proved by molecular modeling and FT-IR spectroscopy. PDSC and FT-IR spectroscopy test results indicate that it is the synergistic antioxidant effect of composite antioxidant improving the new insulation oil oxidation stability. The synergistic antioxidant mechanism of the composite antioxidant was analyzed at last.
insulation oil ozidative stability high pressure differential scanning calorimetry molecular modeling FT-IR spectroscopy synergistic antiozidant effect
Jian HAO Ruijin LIAO Shuaiwei LIANG Lijun YANG Mengzhao ZHU
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 40004, CHINA
国际会议
哈尔滨
英文
53-56
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）