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- W2103445068 abstract "The ignition of slabs of high-impact polystyrene by a lean hydrogen–oxygen flat flame was studied. The ignition delays and inital rates of flame development after ignition are reported as functions of gas temperature and the separation between flame and polymer surface. The delays follow an Arrhenius-type expression with an activation energy of 98 ± 18 kJ mol−1. The rates of flame development drop as the gas temperature increases. During long ignition delays the apparent heat transfer coefficient at the sample surface dropped from about 100 W m−2 K−1 to values close to that expected for a hot gas impinging at right angles on a cold surface. For short delays it was higher and more constant at about 100 W m−2 K−1. Although the surface temperature reached before ignition exceeded that required for nonoxidative pyrolysis, the polymer surface charred only when oxygen was present. It is concluded that both oxidative and nonoxidative pyrolysis contribute to the ignition of polystyrene." @default.
- W2103445068 created "2016-06-24" @default.
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- W2103445068 date "1984-01-01" @default.
- W2103445068 modified "2023-09-26" @default.
- W2103445068 title "The role of oxygen in the ignition of polystyrene by a small flame" @default.
- W2103445068 doi "https://doi.org/10.1002/pol.1984.170220124" @default.
- W2103445068 hasPublicationYear "1984" @default.
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