Abstract
The fire-retarding effects of the foaming fire-retarding paints are not due to solely the only factor, the physical heat insulating effects of the sponge-like foaming layers, but to the products of the effectiveness of the some factors, which may be considered to govern the fire retarding properties.
Considering the mechanisms of the fire-retarding effects of this paints, which we deduced from the experiments on the paints of (NH4) H2 PO4-C6 H5 NH2H3PO4-Thiourea Melamin Resin System and (NH4) H2PO4-(NH2)2 CO-Paraformaldehyde-Starch System, we enumerated some fire-retarding factors.
And it was concluded that the foaming tendency and the endo-thermic heat decomposition of foaming materials together played the main role.
In addition, the effects of the foaming materials, which penetrated to the wooden system, had not to be looked over.
