OBTAINING AND SOME PHYSICO-CHEMICAL PROPERTIES OF WATER – SURFACTANT – HALOHYDROCARBON MICROEMULSIONS, SUITABLE FOR THE CREATION OF COMBINED FIRE EXTINGUISHING AGENTS

Abstract

A promising way of creating of extinguishing fires effective means is the development of combined fire

extinguishing agents, providing a combination of several mechanisms of combustion termination. For example,

in the case of joint use of water and chemically active inhibitors it can be a combination of chemical inhibition of the combustion reaction and cooling of the flame. But effective chemically active inhibitors, such as halocarbons,

do not mix with water under ambient conditions. The obtaining of relevant microemulsions can became the method

of their connection.

In this paper, the author summarizes the results of obtaining and studying of micro-emulsions water - sodium

dodecyl sulfate – 1-pentanol – triethanolamine – 2-iodo – heptafluoropropane and water – sodium dodecyl sulfate-

1-pentanol – triethanolamine-1,2-dibromtetrafluoroethylene at the standard temperature.

The obtained data on conductivity and heat capacity are used to analyze structural changes in microemulsions

when their composition changes. By dynamic light scattering the size of the microdroplets of microemulsion

has been determined and their size distribution has been studied. The obtained data allowed also to describe

the properties of microemulsions as fire-extinguishing agents (cooling capacity, possible applications, mechanism

of action). Results of laboratory tests of fire extinguishing efficiency of microemulsions are also reported.