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The thermo‐oxidative degradation of PTFE in the NIST cup furnace toxicity test
Author(s) -
Metcalfe E.,
Harman A. R.,
Patel M. K.
Publication year - 1991
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.810150203
Subject(s) - nist , particulates , toxicity , degradation (telecommunications) , radical , chemistry , waste management , materials science , engineering , organic chemistry , natural language processing , computer science , telecommunications
Long‐lived end‐chain peroxy radicals have been detected during the thermo‐oxidative degradation of PTFE. These radicals are associated with the fine particulate, which is the established cause of the ultra‐high toxic potency of PTFE produced under the conditions employed. The particulate has been further characterized by a vareity of thermo‐analytical methods. Fluid‐flow modelling analysis has been used to simulate the recirculatory behaviour, characteristic of the NIST cup furnace toxicity test, which may effect the continuous regeneration of the toxicity.