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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 9: POSTER: Colloids and Nanoparticles
CPP 9.6: Poster
Monday, March 26, 2007, 16:00–18:00, Poster B
Decontamination with sugar surfactant based microemulsions — •Stefan Wellert1, Henrik Imhof1, Andre Steppin1, Thomas Hellweg1, Michael Dolle2, Hans-Jürgen Altmann2, and Andre Richardt2 — 1TU Berlin, Stranski-Lab., Strasse des 17. Juni 124, D-10623 Berlin — 2Armed Forces Scientific Institute (NBC-Protection), P.O.Box 1142, D-29623 Munster
Environmental compatibility is one of the most important features of modern decontamination media for a large variety of toxic compounds as warfare agents or pesticides. Different selection factors like capacity, effectiveness, universality and economy determine the formulation and development of such systems. We showed by a study of the phase behavior the possibility to replace an existing macroscopic system by microemulsions containing the same main components. Environmental non harmful and non corrosive organic solvents and the use of APG surfactants promise a simple and safe application. To meet these requirements we used technical sugar surfactants and beside PCE also less harmful solvents like xylene and Biodiesel fuel. We present results from studies of the phase behavior of quaternary systems and the influence of an additional active component is discussed. For the decontamination oxidizing agents and enzymes are promising active components. The decontamination efficiency of both systems is first estimated on the basis of the ability to wet typical non-chemical resistant coated steel sheets. Afterwards, promising samples are tested using real surfaces covered with nerve agent.