The effectiveness of a phosphoramidate Tetraethyl piperazine-1,4-diyldiphosphoramidate(TEPP )as a flame retardant (FR) on cotton twill fabrics was compared with that of a previously studied Diethyl 4-methylpiperazin-1-ylphosphoramidate(DEPP ).  TEPP  was formed in a reaction between two phosphonates and a piperazine then  cotton twill fabrics were treated with TEPP  at different levels of add-on (2 - 19 wt%) and characterized using vertical flammability, limiting oxygen index (LOI), microscale combustion calorimetry (MCC), and thermogravimetric analysis (TGA) methods.   The results showed better flame retardancy and thermal behavior for TEPP  fabrics when compared with DEPP  fabrics.  When the morphological structure of the formed char from the burned areas was examined by Scanning Electron Microscopy (SEM), the results revealed a fairly insignificant difference in the mode of action between the two types of fabric.

Studies of flammability and thermal degradation for flame retardant cotton fabric with P-N containing derivatives

248th National Meeting (2014)

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