The influence of inorganic materials on the pyrolysis of polytetrafluoroethylene. Part 1: The sulfates and fluorides of Al, Zn, Cu, Ni, Co, Fe and Mn

Thermal Decomposition and Thermal Reaction Process of PTFE/Al/MnO2 Fluorinated Thermite

“…According to the MS spectrum presented in Figure 2, C 2 F 4 + was produced and accumulated at 513 °C and then largely depleted due to its reaction with Al. However, since more AlF 3 were produced, a mounting catalytic effect on PTFE decomposition [9] was exerted, which raised the C 2 F 4 + content again to the peak value of 574 °C. As the PTFE decomposition ended at 619 °C, the content of C 2 F 4 reduced gradually to zero (Figure 2).…”

“…Studying the application of fluorinated polymers in thermite, Li [8] found that the low boiling point of AlF 3 could prevent it from covering the Al particle surface and hindering the reaction. Puts and Crouse [9] investigated the effect of metal fluoride on PTFE decomposition, concluding that the catalytic effect of AlF 3 could accelerate the reaction process and further promote the decomposition by inducing a 30 °C drop for the reaction temperature. In the meantime, the promotion effects exerted by PTFE were also reported for the thermal reaction, including a faster energy release, a higher flame temperature, and a greater reaction pressure of the thermite [10,11,12,13].…”

Radical copolymerisation of chlorotrifluoroethylene with isobutyl vinyl ether initiated by the persistent perfluoro-3-ethyl-2,4-dimethyl-3-pentyl radical

“…For comparison, the onset of degradation temperature for PTFE is around 550 °C 33 under the same conditions. The infrared spectra of the evolved gases display the expected release of HF and HCl.…”

Performance and stability of (ZrO 2 ) 0.89 (Y 2 O 3 ) 0.01 (Sc 2 O 3 ) 0.10 -LaCr 0.85 Cu 0.10 Ni 0.05 O 3-δ oxygen transport membranes under conditions relevant for oxy-fuel combustion

“…[49][50][51]. Raman spectra of the treated samples did not show any additional signals when compared to the spectrum of the untreated 10Sc1YSZ-LCCN (70-30 vol.%), further indicating that neither carbonates (recognizable by signals in the range of 100-300 cm -1 and 1000-1100 cm -1 ) nor sulfates (recognizable by signals in the range of 900-1000 cm -1 )[52][53][54][55][56][57] were formed.…”