Preparation of a New Flame Retardant Based on Phosphorus-Nitrogen (P-N) Synergism and Its Application on Cotton Fabrics

摘要

A novel oligomeric P–N synergistic flame retardant (FR) poly(phenyl O-(2-aminoethyl) phosphonamidoate) (PPAP) was synthesized and characterized by fourier transform infrared spectrometry (FT–IR) and ~1H nuclear magnetic resonances (1H NMR). Application of PPAP on cotton fabric was studied, and the results showed that the best dosage of PPAP and coupling agent tetraethyl orthosilicate (TEOS) were 350 g/L and100 g/L respectively. Under these conditions, the treated cotton fabric was tested with 10.6 cm of char length. The results of thermogravimetric analyser (TGA) indicated that the fabrics treated with PPAP were more stable in high temperature compared with original fabrics. All the results implied PPAP can be used as a promising FR.