The paper investigates efficiency of silicate flame retardants on wooden fibres (used for production of medium-density fibreboards) and spruce boards. A simultaneous thermal analysis and cone calorimetry were used for the assessment. Specimens were treated with three different types of silicate water glass: sodium silicate, potassium silicate and modified silicate. Along with these, one sample of untreated fibres was tested in order to provide a baseline sample. As a result of the simultaneous thermal analysis, the ability of the treatments to increase the residual amount of biological char in samples during pyrolysis and ability of the flame retardant to be retained in these wood fibres was used to assess the efficiency of each flame retardant on the wood fibres.
Bibliographical noteFunding Information:
The author would like to thank the Erasmus+ programme for the travelling grant enabling the stay at DTU FireLab. Also thank to the Danish company Bollerup Jensen A/S for providing the different water soluble silicates for material treatments. This research was financially supported of the project KEGA 033?U-4/2019 "Integration of practical training in the study program of the rescue service".
- Cone calorimetry
- Mass loss
- Simultaneous thermal analysis
- Time of ignition