High temperature oxidative stability of C3F7O[CF(CF3)CF2O]xC 3F7 and CF3(OCF2CF2CF2)yCF 3 perfluoropolyalkylethers and formulations in the presence of metals©

Lubrication Engineering

Volumn 56, Issue 1, 2000, Pages 17-22

  Gschwender, Lois J ^a,b   Snyder Jr , Carl E ^a,b  

^a STLE ^*  (United States)

^b WRIGHT PATTERSON AIR FORCE BASE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GAS TURBINE; LUBRICATION; STABILITY;

ADDITIVES; FLUORINE CONTAINING POLYMERS; GAS TURBINES; HIGH TEMPERATURE PROPERTIES; MILITARY AIRCRAFT; POLYETHERS; STEEL; THERMOOXIDATION; TITANIUM ALLOYS;

PERFLUOROPOLYALKYLETHERS;

LUBRICATING OILS;

EID: 0033622958     PISSN: 00247154     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (14)

1. Snyder, C. E., Jr. and Dolle, R. E., Jr., "Development of Polyperfluoroalkylethers and High Temperature Lubricants and Hydraulic Fluids," ASLE Trans., 19, 3, pp 171-180, (1976).
2. Gschwender, L. J., Snyder, C. E., Jr. and Fultz, G. W., "Soluble Additives for Perfluoropolyalkylether Liquid Lubricants," Lubr. Eng., 49, 9, pp 702-708, (1993).
3. Paciorek, K. J. L., "Thermal-Oxidative Pretreatment and Evaluation of Poly(hexafluoropropene Oxide) Fluids," Trib. Trans., 38, 3, pp 571-580, (1995).
4. MIL-PRF-7808L, "Performance Specification, Lubricating Oil, Aircraft Turbine Engine, Synthetic Base," (1997).
5. MIL-PRF-23699F, "Performance Specification, Lubricating Oil, Aircraft Turbine Engine, Synthetic Base," (1997).
6. "Test Method for the Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants and Other Highly Refined Oils," Method D4636-97, ASTM, 05.03, (1998).
7. Gschwender, L. J., Snyder, C. E., Jr., Fultz, G. W., Hahn, D. A. and Demers, J. R., "Characterization of Model Perfluoropolyalkylethers by Miniaturized Thermal Oxidative Techniques - Part I: Modified Oxidation-Corrosion Test," Trib. Trans., 38, 3, pp 618-626, (1995).
8. Gschwender, L. J. and Snyder, C. E., Jr., US 5,302,760, "Stability Additive for Perfluoropolyalkylethers," (1994).
9. Eapen K. C. and Tamborski, C., "The Synthesis of Tris(Trifluoromethylphenyl)phosphines and Phosphine Oxides," Jour. Fluorine Chem., 51, pp 239-243, (1980).
10. Eapen, K. C. and Chen, L. S., "Perfluorinated Polyphenylether Lubricant Composition," US Statutory Invention Registration, Reg. No. H1537, (1996).
11. Paciorek, K. J. L. and Kratzer, R. H., "Stability of Perfluoroalkylethers," Jour. Fluorine Chem., 67, pp 169-175, (1994).
12. Trivedi, H. K., Saba, C. S., Carswell, L. C., Gschwender, L. J. and Snyder, C. E., Jr., "Behavior of Perfluoropolyalkylethers Under Simulated Dynamic Bearing Conditions," Trib. Let., 5, 2 and 3, pp 211-212, (1998).
13. Paciorek, K. J. L., Masuda, S. R., Nakahara, J. H. and Kratzer, R. H., "Improved Perfluoroalkylether Fluid Development," NASA Rep. CR-180872, (1987).
14. Paciorek, K. J. L., Kratzer, R. H., Kaufman, J. and Nakahara, J. H., "Thermal Oxidative Studies of Poly (Hexafluoropropylene Oxide) Fluids," Jour. Appl. Polymer Sci., 24, pp 1397-1411, (1979).