Cooperative Effects of Ni Catalyst and Radiation on Thermal Decomposition Behavior of Poly(tetrafluoroethylene).

ABSTRACT: This study investigated the impact of a Ni-complex catalyst on the thermal decomposition of irradiated poly-(tetrafluoroethylene) (PTFE) through thermogravimetric analysis and spectroscopic techniques. This catalyst, comprising Ni and NiO particles on a microporous SiO₂/Al₂O₃ support, was incorporated into PTFE powder via mechanical grinding. The Ni-loaded PTFE exhibited nearly 50% weight loss at temperatures 370-400 °C, which is 153-123 °C lower than the decomposition temperature of untreated PTFE (523 °C). The thermal stability of PTFE declines significantly above its melting point. Following electron beam irradiation, approximately half of the irradiated PTFE residue was degassed at relatively low temperatures (100-140 °C), likely due to thermal reaction

SUBMITTER: Yu H 

PROVIDER: S-EPMC12268439 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature