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Formation and investigation of epoxy intumescent compositions modified by active additives
Author(s) -
Kodolov V. I.,
Shuklin S. G.,
Kuznetsov A. P.,
Makarova L. G.,
Bystrov S. G.,
Demicheva O. V.,
Rudakova T. A.
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10751
Subject(s) - ammonium polyphosphate , intumescent , materials science , carbonization , fire retardant , epoxy , polyethylene , flammability , composite material , chemical engineering , coke , scanning electron microscope , metallurgy , engineering
Abstract Results are reported of research on intumescent composites based on epoxy resin cross‐linked with polyethylene polyamine and containing ammonium polyphosphate and such modifying additives as calcium borate, manganese dioxide, nickel, and chromium, containing tubulenes as gas‐formers and carbonization stimulators. The changes in composition and physicochemical properties of modified compositions under conditions of heat and fire were investigated by X‐ray photo‐electron spectroscopy, atomic force microscopy, and local force spectroscopy. Ammonium polyphosphate mainly stimulates carbonization processes on the inner surface of a bubble being formed during foam coke formation. The introduction of metal‐containing tubulenes leads to the formation of fire‐retardant and low flammability‐compositions with high coke and carbon structures content. The use of calcium borate in the compositions considerably increases the strength of foam coke being formed. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1477–1483, 2002