Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fire retardation in nylon 6-layered silicate nanocomposites: Films, fibers and fabrics
Nanocomposites with 8 wt% MMT (montmorrilonite) show better spinnability and the fibres have satisfactory physical properties to knit into fabric. Condensed phase flame retardant mechanism of MMT seems to be effective but to a lesser extent as the sample geometry is changed from film to fibre and fabric. At a concentration of 8 wt% MMT, the flame retardant effect depends on fabric geometry as well as test conditions. Flame spread is too rapid for the MMT platelets to form a continuous char in horizontal flame spread tests and hence the nanocomposite fabrics do not show significant difference in flame spread behaviour compared to nylon 6 fabrics. However under radiant heat conditions, the fibres fuse and enable formation of a continuous surface char at very early stages of burning resulting in significant flame retardance. Fabric tightness factor plays a crucial role in supporting the char formation process and with higher tightness factor enhanced flame retardancy could be achieved.
Fire retardation in nylon 6-layered silicate nanocomposites: Films, fibers and fabrics
Nanocomposites with 8 wt% MMT (montmorrilonite) show better spinnability and the fibres have satisfactory physical properties to knit into fabric. Condensed phase flame retardant mechanism of MMT seems to be effective but to a lesser extent as the sample geometry is changed from film to fibre and fabric. At a concentration of 8 wt% MMT, the flame retardant effect depends on fabric geometry as well as test conditions. Flame spread is too rapid for the MMT platelets to form a continuous char in horizontal flame spread tests and hence the nanocomposite fabrics do not show significant difference in flame spread behaviour compared to nylon 6 fabrics. However under radiant heat conditions, the fibres fuse and enable formation of a continuous surface char at very early stages of burning resulting in significant flame retardance. Fabric tightness factor plays a crucial role in supporting the char formation process and with higher tightness factor enhanced flame retardancy could be achieved.
Fire retardation in nylon 6-layered silicate nanocomposites: Films, fibers and fabrics
Patra, Prabir K. (Autor:in) / Shanmuganathan, Kadhiravan (Autor:in) / Deodhar, Sarang (Autor:in) / Dembsey, Nicholas A. (Autor:in) / Warner, Steven B. (Autor:in) / Calvert, Paul D. (Autor:in) / Fan, Qinguo (Autor:in)
2008
2 Seiten, 2 Bilder, 5 Quellen
Aufsatz (Konferenz)
Englisch
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