Microkinetics of high-temperature pyrolysis

• Published in: Fire and materials 1998-03, Vol.22 (2), p.47-54
• Main Authors: Khalturinskij, Nikolay A., Reshetnikov, Igor S., Yablokova, Marina Yu, Rudakova, Tatjyana A., Svistunov, Victor S.
• Format: Article
• Language: English
• ISSN: 0308-0501; 1099-1018
• DOI: 10.1002/(SICI)1099-1018(199803/04)22:2<47::AID-FAM630>3.0.CO;2-2

High‐temperature pyrolysis of various classes of polymers have been discussed. For the non‐carbonizing polymers it was shown that polymer structure can affect the pyrolysis characteristics. Data on the high‐temperature pyrolysis of some polypropylene samples with different crystallinity have been presented. Modification of the standard method allowing one to obtain kinetic data from the single experiment was discussed. A kinetic model for the degradation of char‐forming polymers in conditions of high‐temperature pyrolysis has been suggested. It has been supposed that pyrolysis of carbonizing polymers proceeds in some (two in present work) parallel stages with different activation energies, temperatures and pyrolysis rates. Questions of the applicability of the suggested model to describe the various types of charring systems have been discussed. High‐temperature pyrolysis for a number of epoxy resin‐based polymeric compositions have been investigated. Kinetic parameters of the pyrolysis have been computed. © 1998 John Wiley & Sons Ltd.