Science and Mathematics Faculty Publications

Title

Thermal-Oxidative Pretreatment and Evaluation of Poly(hexafluoropropene Oxide) Fluids

Document Type

Article

Publication Date

1995

Journal Title

Tribology Transactions

Volume

38

Issue

3

First Page

571

Last Page

576

Abstract

Two commercial poly(hexafluoropropene oxide) fluids were thermally pretreated at 343°C in pure oxygen. IR and NMR spectra indicate that this pretreatment was effective in removing hydrogen end-capped impurities. A decrease in the quantity of volatile material produced during thermal oxidative decomposition and increase in the thermal decomposition temperature indicated improvement in the stability of the fluids. However, this pretreatment failed to render the fluids completely stable in oxidizing atmospheres at 316°C in the presence of metal alloys.

Keywords

perfluoropolyethers, oxidative stability

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