EXTINGUISHING FLAMES OF HYDROPHOBIC MATERIALS BY WATER SOLUTIONS OF WETTING AGENT

It is shown that the key to effective suppression of water is the ability of an aqueous solution to wet and spread over the surface of the burning products. Introduction of the aqueous solution of surfactant— wetting agent is making it hydrophobic and thereby enhances its wetting ability. The parameters of the wetting of the hydrophobic fabric with aqueous solutions of sodium lauryl sulfate are presented. There are made assumptions about the dependence of the average thickness of the wetting layer on a solid surface on the intensity of the water supply. The characteristic points on curves of capillary pressure on the concentration are established, such as the concentration of inversion of wetting and maximum capillary pressure hydrophobic fabric.