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Poly(butylene terephthalate) fire retarded by 1,4‐diisobutylene‐2,3,5,6‐tetraxydroxy‐1, 4‐diphosphine oxide. I. Combustion and thermal decomposition
Author(s) -
Aufmuth W.,
Levchik S.V.,
Levchik G.F.,
Klatt M.
Publication year - 1999
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/(sici)1099-1018(199901/02)23:1<1::aid-fam660>3.0.co;2-k
Subject(s) - limiting oxygen index , thermogravimetric analysis , thermogravimetry , thermal decomposition , fire retardant , oxide , materials science , combustion , activation energy , decomposition , ferric , chemical engineering , limiting , flammability , nuclear chemistry , polymer chemistry , composite material , chemistry , organic chemistry , metallurgy , char , mechanical engineering , engineering
1,4‐Diisobutylene‐2,3,5,6‐tetraxydroxy‐1,4‐diphosphine oxide (Cyagard) provides good fire retardant performance for poly(butylene terephthalate) (PBT) as measured by the UL94 test whereas the combination of Cyagard with some co‐additives helps to increase the limiting oxygen index (LOI). A correlation between the solid residue measured by thermogravimetry and LOI was observed. Kinetic analysis of the thermogravimetric data showed a strong increase in the activation energy of the thermal decomposition of PBT in the presence of Cyagard and ferric oxide. Copyright © 1999 John Wiley & Sons Ltd.