Accession Number : ADA264079


Title :   Thermal Stability of Sealants for Military Aircraft: Modification of Polysulfide Prepolymers with Ether and Thioether Monomers


Corporate Author : MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)


Personal Author(s) : Hanhela, P J ; Mazurek, W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a264079.pdf


Report Date : Feb 1993


Pagination or Media Count : 26


Abstract : The effect of modifying Thiokol polysulfide prepolymers with dimercapto diethyl ether and dimercapto diethyl sulfide, on the resistance to heat ageing has been examined together with a commercially modified (PR-1770 B- 2) and an unmodified equivalent sealant (PR-1750 13-2). Mechanical test performed on specimens, after heat ageing at 182 deg C, indicated that the modifications did not improve the best resistance of polysulfide sealants.... Thermal properties, Dimercapto ethers, Heat ageing, Thiol-disulfide interchange reaction.


Descriptors :   *MILITARY AIRCRAFT , *POLYSULFIDES , *SEALING COMPOUNDS , TEST AND EVALUATION , AGING(MATERIALS) , THERMAL STABILITY , SULFIDES , HEAT RESISTANT MATERIALS , SYNTHETIC RUBBER , AUSTRALIA , MONOMERS , ETHERS , MODIFICATION , THERMAL PROPERTIES


Subject Categories : Adhesives, Seals and Binders


Distribution Statement : APPROVED FOR PUBLIC RELEASE