An Overview of Some Reactive Routes to Flame-Retardant Fibre-Forming Polymers: Polypropylene and Polyacrylonitrile

The thermal degradation and flammability characteristics of some common fibre-forming polymers, such as polypropylene (PP) polyacrylonitrile (PAN), are described in this review paper. flame retardance these polymers is principally affected by reactive routes that were primarily developed our laboratories. modifying groups incorporated into polymeric chains include phosphorus- or phosphorus/nitrogen-containing moieties different chemical environments. extent mainly evaluated using routine calorimetric techniques. Elements flame-retardant mechanisms occurring the condensed vapour phases also identified. Furthermore, we explored effects molecularly dispersed β-cyclodextrin, including its physical mixtures, on combustion PAN. Given both types often used form fibres, aspect ratio fibrous materials relatively high, even nominal enhancements their fire highly welcomed. Hence, preliminary results research chemically modified PAN incorporating β-cyclodextrin encouraging terms enhanced retardance, hence field warrants further exploration.