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Radiant heat may be a significant component of heat exposure in the case of proximity firefighting. To combat high levels of radiant heat, fire proximity suits made of aluminized fabrics (Al-Fb) are commonly used due to their proven radiant protective performance (RPP). In this study RPP of various Al-Fb prepared using different aluminized films (Al-Fl) such as double-sided aluminized film and single-sided aluminized film and different base fabrics such as woven, knit, and nonwoven fabrics are compared. The effect of flexing on RPP and flame protective performance (FPP) of Al-Fb is also examined. The results show that RPP of Al-Fl is affected by the protective film to protect against mechanical or physical damages, and also by their structure such as whether the second reflective aluminum layer is present or not. In addition RPP of Al-Fb is also influenced by the base fabric, especially its surface roughness. The increased surface roughness combined with the damage caused to the aluminum layer after flexing result in reduction of RPP of Al-Fb. The contribution of Al-Fl to FPP of Al-Fb is not as significant as to RPP. Finally, based on the results, some points that may be important in developing and designing fire proximity suits are recommended.

Effect of Aluminized Fabrics on Radiant Protective Performance of Fire Proximity Suit Materials