Premium
New fire‐protective intumescent coatings for wood
Author(s) -
Hassan M. A.,
Kozlowski Ryszard,
Obidzinski Bartoz
Publication year - 2008
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.28518
Subject(s) - intumescent , flammability , cone calorimeter , materials science , fire retardant , polyurethane , composite material , coating , fire performance , acrylate , char , compatibility (geochemistry) , montmorillonite , combustibility , polymer , combustion , fire resistance , monomer , organic chemistry , chemistry
Polyurethane coatings are highly flammable, and because of their widespread applications on different substrates (wood, steel, and building materials), there is a need to increase their fire‐safety properties. Intumescent additives sharply suppress the flammability properties of polyurethane coatings. Two problems accompany intumescent additives: their high loading percentage and incompatibility with polyurethane coatings. In this research, we succeeded in increasing the compatibility by mixing intumescent additives with a butyl acrylate polymer and in lowering the flame‐retardant additive loading (up to 20%) by incorporating newly modified montmorillonite. The flammability properties of the new intumescent coatings were characterized with a cone calorimeter. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008