A Kinetic Study of the Inhibition Mechanism of Hexafluoropropylene (HFP) on Hydrogen Combustion.

ABSTRACT: Hexafluoropropylene (HFP) is used as an advanced fire extinguishing agent with high thermal stability, excellent fire suppression performance, and environmentally friendly characteristics. In this study, the inhibition mechanism of HFP during H₂ combustion was analyzed, focusing on its reaction behavior with H and OH radicals to verify its interruption of the combustion chain reaction by scavenging key reactive radicals. The unimolecular pyrolysis process of HFP was investigated to characterize the heat absorption effect when it dissociates into small molecular fragments. The gas-phase kinetic properties of the proposed reaction pathway were analyzed by combining high-level quantum chemical calculations with the RRKM/master equation. The results show that the unimolecular dissoc

SUBMITTER: He W 

PROVIDER: S-EPMC12509114 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature