Synthesis and Characterization of a Phosphoramidic-Acid-Based Flame Retardant

A new environment-friendly flame retardant, classified as a phosphoramidic-acidbased flame retardant, was synthesized by utilizing neopentyl glycol, phosphorus oxychloride, and ethylene diamine, for application to polyurethane artificial leather. The structure of the synthesized flame retardant was identified by 1H-NMR and FT-IR spectrophotometry and the thermal properties of the flame retardant were investigated by means of thermogravimetry and differential scanning calorimetry. The purity of the synthesized flame retardant was improved by the solvent exchange technique. Particle size reduction to a mean particle size of 374 nm was achieved by the ball milling process. Hydrolysis, solubility, and fire retardance tests suggest that the synthesized compound has good flame retardancy along with properties that are adequate for the manufacturing process of polyurethane artificial leather.

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Synthesis and Characterization of a Phosphoramidic-Acid-Based Flame Retardant

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