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基于金属催化氧化的航空液压油氧化安定性研究
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江苏省自然科学基金青年基金项目(BK20180180)


Research on Oxidation Stability of Aviation Hydraulic Oil Based onMetal Catalytic Oxidation
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    摘要:

    为探究航空液压油氧化安定性变化规律,设计基于金属催化氧化的模拟氧化试验,研究在金属Cu与Fe的催化氧化下,15号航空液压油在不同氧化时间下的外观、黏度以及酸值变化规律,并借助GC/MS对油样组成结构进行分析。结果表明:在长时间氧化下添加金属Cu、Fe的油样颜色、黏度变化更剧烈,氧化后酸值更高,说明在金属催化氧化下,液压油的氧化安定性变差。GC/MS分析表明:在金属作用下,航空液压油长时间氧化后抗氧剂消耗更剧烈,且生成了小分子烷烃以及少量的醇、酮、酸、酯等化合物,造成了油品理化性能的变化以及氧化安定性变差。

    Abstract:

    In order to explore the law of oxidation stability of aviation hydraulic oil,a simulated oxidation test based on metal catalytic oxidation was designed to study the catalytic oxidation of Cu and Fe metal.The variation of the appearance,viscosity and acid value of the 15th aviation hydraulic oil under different oxidation time was investigated,and the composition of the oil sample was analyzed by means of GC/MS.The results show that the color and viscosity of the oil samples added with Cu and Fe change more severe and the acid value is higher after longtime oxidation,indicating that the oxidation stability of the hydraulic oil is deteriorated under the catalytic oxidation of metal.GC/MS analysis results show that under the action of metal,the antioxidant consumption of the aviation hydraulic oil is more severe after longtime oxidation,and small molecular alkane and a small amount of alcohol,ketone,acid,ester and other compounds are formed,resulting in the change of physical and chemical properties and the deterioration of oxidation stability of the oil samples.

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王长春,费逸伟,马军,彭显才.基于金属催化氧化的航空液压油氧化安定性研究[J].润滑与密封,2019,44(11):45-49.
. Research on Oxidation Stability of Aviation Hydraulic Oil Based onMetal Catalytic Oxidation[J]. Lubrication Engineering,2019,44(11):45-49.

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  • 在线发布日期: 2020-03-19
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