Abstract
The degradative changes taking place in filled systems based on an aromatic polyamide derived from terephthalic acid and anilinefluorene, being subjected to friction at high temperatures, have been investigated by mass spectrometry. It was ascertained that in friction the polyamide binder undergoes considerable degradation and cross-linking under the influence of heat, oxygen and the mechanical field. It is shown that addition to the system of small quantities of a polyamidocarborane derived from 1,7- m-carboranodicarboxylic acid and benzidine, considerably erduces the rate of degradation of the binder, thereby improving the lubricating properties of the filled systems.
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