1 research outputs found
Structural Effect of Phosphoramidate Derivatives on the Thermal and Flame Retardant Behaviors of Treated Cotton Cellulose
The
present research is aimed at studying the structural effect of two
phosphoramidate derivatives diethyl 3-hydroxypropylphosphoramidate <b>EHP</b> and dimethyl 3-hydroxypropylphosphoramidate <b>MHP</b> as flame retardants for cotton fabric. <b>EHP</b> and <b>MHP</b> were obtained in very high yield and purity by one step
procedures. Cotton twill fabrics treated with the two compounds at
different add-ons (5–20 wt %) were characterized. Vertical
flammability, limiting oxygen index, thermogravimetric, and microscale
combustion calorimeter analyses were performed, and all resulted in
better flame retardancy and thermal behavior for <b>MHP</b> compared
to <b>EHP</b>. A study of the functional groups which appeared
on the treated fabrics by attenuated total reflection infrared spectroscopy
revealed different binding mechanisms between each compound and cotton
cellulose. Analysis of the released gas products by thermogravimetric
analysis-Fourier transform infrared spectroscopy showed some distinctive
details in the degradation of the treated fabrics during the burning
process