| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 675019 | Thermochimica Acta | 2009 | 5 Pages |
Abstract
The kinetics of the interaction of tungsten metal with a copolymer of tetrafluoroethylene and vinylidene difluoride (TFE–VDF) has been studied by mass spectrometry (MS), thermogravimetry (TG), and differential scanning calorimetry (DSC). Measurements were taken in a vacuum (MS) and in a dynamic argon atmosphere (DSC, TG) in temperature ranges of 550–585 K (MS) and 313–873 K (TG, DSC). The interaction of tungsten with the fluoropolymer is at least a two-stage process. Its kinetics is described by the Prout–Tompkins nth-order autocatalytic equation. It follows from the kinetic dependences and parameters obtained that the rate-limiting stage of the overall process is the formation of the highest tungsten fluoride WF6.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
A.V. Tarasov, I.V. Arkhangel'skii, A.S. Alikhanyan,