Carbon Residue Studies of Polyphenyl Ethers and Ester-Based Lubricants Using a Microcarbon Residue Tester.

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Abstract:

A commercial microcarbon residue tester MCRT was used to measure the amount of carbon residue generated from ester-based lubricants with viscosities of 4 and 7.5 cSt and from the polyphenyl ethers 5P4E, 5P4E with an antioxidant additive, 4P3E and 3E2E. All of the lubricants showed significant volatilization at all temperatures with the polyphenyl ethers generally leaving residues which were less than 10 weight percent of the initial sample. An analysis of the weight percent residue as a function of location of the samples within the MCRT oven showed that a minimum of 6 sample vials distributed in either even or odd locations is needed to give reliable quantities of residue. Keywords Lubricant degradation, Lubricant test, Polyphenyl ethers, Synthetic esters.

Author(s):
Flentge, Dennis R.
Author Organization(s):
CEDARVILLE COLL OH
Descriptive Note:
Final rept. Jun-Sep 87,
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFWAL-TR-87-2058
Contract/Grant Number(s):
F49620-85-C-0013
Task Number(s):
06
Project Number(s):
3048
Monitor Series:
TR-87-2058
 Subject Terms
Joint Capability Areas:
JCA_4.2.3_Manage Global Supplier Networks; JCA_4.2_Supply; JCA_1.2.7_Experimentation; JCA_5_Command and Control
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ESTERS, *LUBRICANTS, *TEST EQUIPMENT, *POLYMERS, ADDITIVES, ANTIOXIDANTS, CARBON, DEGRADATION, RELIABILITY, VOLATILITY, PHENYL ETHER, RESIDUES, THERMAL STRESSES, TURBINES, TABLES(DATA), VISCOSITY
Field(s)/Group(s):
Lubricants and Hydraulic Fluids, Polymer Chemistry, Test Facilities, Equipment and Methods
Keyword(s):
*MCRT(Microcarbon Residue Tester), *Micro carbon residue tester, WUAFWAL30408626, PE62203F
Report Date:
1987 Jun 01