The mechanism of thermal degradation of an elastomer of the Kel-F type in the temperature region of 200–380° — IV

Degteva, T.G.; Sedova, I.M.; Kuz'minskii, A.S.

doi:10.1016/0032-3950(64)90622-7

Cited by 8 publications

(1 citation statement)

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“…The earliest published kinetics on Kel-F appear to be that of Degteva et al [16,17] Our expression, being autocatalytic, predicts that the reaction rate increases from an initial value of 0.03 %/min initially (not counting the labile 1%, which would be consumed during sample heatup) to a maximum of 0.07 %/min at 25% conversion.…”

Section: Kel-fmentioning

confidence: 77%

Kinetics of thermal degradation of explosive binders Viton A, Estane, and Kel-F

Burnham

Weese

2005

Thermochimica Acta

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The use of isoconversional, sometimes called model-free, kinetic analysis methods have recently gained favor in the thermal analysis community. Although these methods are very useful and instructive, the conclusion by some that model fitting is a poor approach is largely due to improper use of model fitting, such as fitting a single heating rate or multiple heating rates separately. The current paper shows the ability of model fitting to correlate reaction data over very wide time-temperature regimes for three polymers of interest for formulating high explosives: Estane 5703 P (poly [ester urethane] block copolymer), Viton A (vinylidene-hexafluoropropene copolymer), and Kel-F 800 (vinylidene-chlorotrifluorethene copolymer). The Kel-F required two parallel reactions⎯one describing an early decomposition process accounting for ~1% weight loss and a second autocatalytic reaction describing the remainder of pyrolysis. Essentially no residue was obtained. Viton A and Estane also required two parallel reactions for primary pyrolysis. For Viton A, the first reaction is also a minor, early

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Section: Kel-fmentioning

confidence: 77%