Accession Number:

ADA175188

Title:

Reclassification and Grease Compatibility Studies for Liquid Propellants.

Descriptive Note:

Contractor rept.,

Corporate Author:

HAZARDS RESEARCH CORP ROCKAWAY NJ

Personal Author(s):

Report Date:

1986-12-01

Pagination or Media Count:

30.0

Abstract:

Various greases come in contact with the liquid propellants in gun fixtures. Ignition could occur from the decomposition of the liquid propellant by this contact. Four silicone greases presently used on gun fixtures, Molykote 33, Molykote FS 3451, Molykote M-77 paste, and Fel-Pro C100, were tested as 5050 mixtures with the liquid propellants for major changes in shock and thermal sensitivity. In the grease mixtures tests of NOS-365 and LP 1845, no major change occurred in the shock sensitivities when compared to the results of the neat liquid propellant formulations. Thermal stability test results showed NOS-365 was unaffected when mixed with Molykote 33, but reacted at significantly lower temperatures with Fel-Pro C100, Molykote M-77 paste, and Molykote FS 3451. A mixture of Fel-Pro C100 grease with LP 1845 was significantly less thermally stable than neat LP 1845 while Molykote 33, Molykote M-77, and Molykote FS 3451 had little effect upon the thermal stability of the liquid propellants. Keywords Hydroxylammonium nitrate Detacord Thermal stability Constant current resistance technique Trauzl block test.

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE