非硫磷有机钛酸酯的合成及其与DODPA抗氧协同性能
发布时间：2018-10-08 10:50
【摘要】：以油酸和钛酸四异丙基酯为原料,合成了3种非硫磷有机钛酸酯(TAE),用红外光谱对其结构进行了表征,分别采用差示扫描量热法和旋转氧弹实验考察了TAE在聚-α-烯烃(PAO)基础油中的热氧化安定性,并考察了其与4,4'-二异辛基二苯胺(DODPA)的抗氧协同性能。结果表明,TAE自身不具有抗氧性能,当添加0.75%DODPA与0.25%TAE(均为质量分数,以PAO基础油的质量计)复配时,产生良好的抗氧协同效果,与单独添加1%DODPA的PAO相比,起始氧化温度提高了18.6℃,氧化诱导时间延长了69.4 min,表现出了良好的抗氧协同性能。最后,通过红外光谱分析了油样在不同氧化时间下的羰基峰面积,并对TAE与DODPA的抗氧协同机理进行了探讨。
[Abstract]:Using oleic acid and tetraisopropyl titanate as raw materials, three kinds of non-phosphorous organic titanates were synthesized and characterized by IR spectra. The thermal oxidation stability of TAE in poly (伪 -olefin) (PAO) base oil was investigated by differential scanning calorimetry (DSC) and rotating oxygen bomb test, and the anti-oxygen synergistic property of (DODPA) with 4H _ 4O _ 4-diisooctyl diphenylamine was also investigated. The results showed that 0.75%DODPA and 0.25%TAE (both mass fraction and mass of PAO base oil) had good anti-oxygen synergistic effect. The initial oxidation temperature was 18.6 鈩，
本文编号：2256482
[Abstract]:Using oleic acid and tetraisopropyl titanate as raw materials, three kinds of non-phosphorous organic titanates were synthesized and characterized by IR spectra. The thermal oxidation stability of TAE in poly (伪 -olefin) (PAO) base oil was investigated by differential scanning calorimetry (DSC) and rotating oxygen bomb test, and the anti-oxygen synergistic property of (DODPA) with 4H _ 4O _ 4-diisooctyl diphenylamine was also investigated. The results showed that 0.75%DODPA and 0.25%TAE (both mass fraction and mass of PAO base oil) had good anti-oxygen synergistic effect. The initial oxidation temperature was 18.6 鈩，
本文编号：2256482
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