This study comprises a brief screening of various organic salts to their suitability to act as fire retardant treatment of wood. It could be demonstrated that organic salts reduce the flame propagation in a lab-scale screening test. Hereby, most promising results were obtained with sodium and potassium containing salts at high WPG. The specific role of the cations of the salts (K+ Na+ or Ca2+) and the various organic anions (oxalate, citrate, etc.) is not clear. Further research is needed to determine the specific contribution of the organic components to the fire-retardant properties.
Keywords: fire retardant, organic minerals, organic salts, wood modification
Authors
Tom Franke
Bern University for Applied Science, Department for Architecture, Wood and Civil Engineering; Institute for Materials and Wood Technology
Thomas Volkmer
Bern University for Applied Science, Department for Architecture, Wood and Civil Engineering; Institute for Materials and Wood Technology
Login to download the PDF