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首页> 外文期刊>Fire and materials >The effect of the presence of a macromolecular organophosphorus flame retardant, poly(N‐3‐oxopropylmethylphosphinateethyleneimine), on the flammability, thermal stability, and mechanical properties of polyamides
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The effect of the presence of a macromolecular organophosphorus flame retardant, poly(N‐3‐oxopropylmethylphosphinateethyleneimine), on the flammability, thermal stability, and mechanical properties of polyamides

机译：The effect of the presence of a macromolecular organophosphorus flame retardant, poly(N‐3‐oxopropylmethylphosphinateethyleneimine), on the flammability, thermal stability, and mechanical properties of polyamides

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Abstract A macromolecular halogen‐free flame retardant, poly(N‐3‐oxopropylmethylphosphinateethyleneimine) (PN) has been developed. This material contains both phosphorus and nitrogen. A simple and scalable process for chemical synthesis on commercial scale is described. FTIR, 1H and 31P NMR spectroscopy were utilized for characterization. The compound has a glass transition temperature of 82°C and is thermally stable up to 330°C. Samples of polyamide 6 containing 1 to 10?wt of PN were prepared in a kneader. The flammability of polyamide 6/PN blends was investigated using the UL 94 vertical fire test, limiting oxygen index measurements, cone calorimetry, and the glow wire test. Samples containing loadings of 1?wt and 10?wt PN have V‐2 and V‐0 ratings, respectively. Specimen containing polyamide 12/PN blends were prepared by extrusion and injection molding for mechanical characterization.

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