Accession Number : AD0061592


Title :   POLYNUCLEAR AROMATIC COMPOUNDS FOR HIGH TEMPERATURE LUBRICANTS


Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX


Personal Author(s) : Raley, Charles F , Jr


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/061592.pdf


Report Date : Feb 1955


Pagination or Media Count : 55


Abstract : The properties of triaryl esters of phosphoric acid were studied with regard to their suitability tor high temperature lubricants and related materials. It was found that naphthyl derivatives did not have sufficient thermal stability to compensate for the unwanted increase in viscosity and melting point. The 4-biphenylyl group possessed all the advantages of the naphthyl group with mach better thermal stability. One particular compound prepared, bis(o-chlorophenyl) 4-biphenylyl phosphate had a thermal stability of over 510 C (950 F), by far the highest stability of any compound prepared wider this contract.


Descriptors :   *LUBRICANTS , *HETEROCYCLIC COMPOUNDS , *POLYCYCLIC COMPOUNDS , *MONOCYCLIC COMPOUNDS , POLYMERIZATION , THERMAL STABILITY , ARYL RADICALS , VISCOSITY , PHOSPHORIC ACIDS


Subject Categories : Lubricants and Hydraulic Fluids


Distribution Statement : APPROVED FOR PUBLIC RELEASE