石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (9): 81-87.

• 油品与添加剂 • 上一篇    下一篇

航空发动机润滑油高温抗氧剂的研究

唐红金,梁宇翔   

  1. 中国石化石油化工科学研究院
  • 收稿日期:2016-04-13 修回日期:2016-04-14 出版日期:2016-09-12 发布日期:2016-08-22
  • 通讯作者: 唐红金 E-mail:tanghj.ripp@sinopec.com

STUDY OF HIHG TEMPERATURE ANTIOXIDANT FOR AVIATION LUBRICANTS

  • Received:2016-04-13 Revised:2016-04-14 Online:2016-09-12 Published:2016-08-22

摘要:

以N-烷基苯基-1-萘胺、烷基化二苯胺为原料,在反应温度为130~180 ℃、反应时间为5~10 h的条件下,合成了低聚物抗氧剂。采用红外光谱、高效液相色谱-质谱联用技术等分析方法对合成低聚物进行表征。结果表明:经204 ℃氧化与腐蚀安定性评定,多元醇酯润滑油氧化前后总酸值变化为0.945 mg KOH/g,40 ℃运动黏度变化率为10.025%,沉积物含量为2.537 mg/(100 mL),与常规抗氧剂相比,合成抗氧剂显著提高了多元醇酯润滑油的高温抗氧化、抗腐蚀性能,满足AS-5780A国际民用航空发动机油规范和MIL-PRF-23699F美国海军航空发动机油规范要求,是一种性能优异的多元醇酯航空润滑油高温抗氧剂。

关键词: 抗氧剂, 氧化安定性, 航空润滑油, 多元醇酯, 基础油

Abstract:

Oligomer antioxidants were synthesized using N-alkyl phenyl-1-naphthylamine and alkylated diphenylamine as raw materials at conditions of 130-180 ℃,5-10 h and characterized by IR, HPLC-MS techniques. After oxidation and anti-corrosion at 204 ℃, the total acid number of polyol ester lubricant containing the synthesized oligomer antioxidant changes 0.945 mgKOH/g, the 40 ℃ viscosity change rate is 10.025%, and the sludge is 2.537 mg/100 mL. Compared with conventional antioxidant, the synthetic antioxidant significantly improves the high temperature oxidation and corrosion resistances of polyol ester lubricant, which can meet the requirements of AS-5780A and MIL-PRF-23699F.

Key words: antioxidants, oxidation stability, aviation lubricant, polyol ester, base oil