高电压技术2012，Vol.38Issue(1)：124-131,8.
绝缘油抗氧化剂的选择及其协同抗氧化作用
Choice of Antioxidants Added in Insulation Oil and Its Anti-oxidant Synergistic Effect
摘要
Abstract
In order to improve the oxidation stability of a mixture oil developed from mineral oil and natural eater,complex antioxidants used in the mixture oil were selected by using high-pressure differential scanning calorimetry（PDSC）.The dielectric constant of mixture oil added into the complex antioxidants were compared with that of mineral oil.The complex antioxidants were also analyzed for the first time by Molecular modeling and FT-IR spectroscopy.PDSC results show that 2,6-di-tert-butyl-p-cresol（T501） and high-purity alkylation-α-naphthylamine（L06） are the best antioxidant used in the mixture oil,and the optimum concentration of the complex antioxidants in the mixture oil is 0.3%T501 ＋ 0.3% L06.The dielectric constant of mixture oil added into the complex antioxidants is higher than that of mineral oil at the same temperature and frequency.Moreover,T501,L06 and T501＋L06 molecular modeling results show that there is no chemical reaction between T501 and L06,and is confirmed by FT-IR spectroscopy of T501＋L06,and the synergistic antioxidant of T501 and L06 makes the mixture oil to exhibit better oxidation stability than mineral oil.关键词
绝缘油/氧化安定性/介电常数/加压差示扫描量热法/分子模拟/红外光谱/协同抗氧化Key words
insulation oil/oxidative stability/dielectric constant/high-pressure differential scanning calorimetry（PDSC）/molecular modeling/FT-IR spectroscopy/synergistic antioxidant effect分类
轻工纺织引用本文复制引用
廖瑞金,郝建,梁帅伟,朱孟兆,杨丽君..绝缘油抗氧化剂的选择及其协同抗氧化作用[J].高电压技术,2012,38(1):124-131,8.基金项目
国家重点基础研究发展计划（973计划） （）
国家自然科学基金 （）
