Fire retardant mechanism of Acrylonitrile Copolymers containing Nanoclay

Hull, T Richard orcid iconORCID: 0000-0002-7970-4208, Stec, Anna A orcid iconORCID: 0000-0002-6861-0468 and May, Adam (2009) Fire retardant mechanism of Acrylonitrile Copolymers containing Nanoclay. In: Fire and Polymers V - materials and concepts for fire retardancy. ACS Symposium Series (1013). American Chemical Society (ACS), Washington, DC, pp. 118-147. ISBN 9780841269880

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The thermal decomposition and burning behaviour of acrylonitrile, containing nanoscopic sodium cloisite, and copolymerised with diethyl(acryloyloxy-1-ethyl) phosphonate (DEAEP), and 2-acrylamido-2-methylpropane sulphonic acid (AMPS) has been investigated. The presence of these copolymers which decompose to form nucleophiles improves the thermal stability and reduces the flammability. This occurs through the formation of a more stable char, containing more nitrogen, during the early stages of decomposition, which is less dependent on the presence of oxygen during its formation, and so continues to form when engulfed by a flame, in essentially anaerobic conditions.

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