The use of polyamide coatings for electrical
applications is restricted mainly because of its inadequate flame retardant
behaviour. In order to improve its flame retardant behaviour, polyamide is
modified by incorporating phosphorus moiety in its backbone. The structure of
the phosphorus and poly amide was confirmed by infrared spectroscopy (FT-IR),
NMR, thermo gravimetric analysis (TGA), differential scanning calorimetry
(DSC), UL-94 vertical burning tests and char residue tests. From the results
obtained, we observe that the incorporation of phosphorus into the polyamide
enhances its thermal stability and flame retardancy.
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