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New Additive for Low Viscosity of AFFF/AR Concentrates—Study of the Potential Fire Performance
Authors:Marie-Laure Carruette  Henry Persson  Martial Pabon
Affiliation:(1) Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW, 2308, Australia;
Abstract:The aim of this study was to investigate the potential fire performance of alcohol resistant foams using a new additive developed by DuPont. The main intention of the new additive is to allow a lower amount of polysaccharide in the formulation of AFFF/AR concentrates thereby reducing their viscosity. A comparative study was performed using two similar formulations of AFFF/AR-concentrates, one traditional concentrate (designated F1) and a novel concentrate (designated F2), which contains the new additive and half the traditional amount of polysaccharide. The study, performed at SP Fire Technology, comprised small scale fire tests in combination with a series of additional tests aimed to provide detailed information about expansion and drainage characteristics, foam spread properties, the influence of heat exposure and vapour suppression capability.The study confirms the desired reduction of the viscosity of an AFFF/AR foam concentrate, using a lower amount of polysaccharide in its formulation, while with the use of the new additive, the fire performance has the potential to be similar or even better than a traditional AFFF/AR foam.
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