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Chemical and physical properties of foamed cokes and their effect on inflammability
Author(s) -
V. Gnedin E.,
Novikov S. N.,
A. Khalturinskij N.
Publication year - 1993
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19930740145
Subject(s) - coke , materials science , pyrolysis , thermal conductivity , intumescent , composite material , combustion , microstructure , chemistry , metallurgy , fire retardant , organic chemistry
By means of IR and Raman spectroscopy chemical and physical properties of foamed cokes, formed during combustion and pyrolysis of PP based compositions, containing intumescent fire retardants (IFR) were investigated. It was established that thermal conductivity coefficients of coke material lie in the range of 0.12–0.32 W/m/K and are weakly dependent on the initial composition of IFR. It was shown that the effectiveness of IFR is mainly determined by the internal microstructure of the foamed cokes and the kinetic parameters of their formation.