Table 1.

FTIR transmittance bonds of thermoplastic yarns.

IR Absorption Bands (cm−1)	Description
3184–3345	stretching vibrations of O–H and N–H groups
2945–2850	C–H stretching
1743–1454	–CH3 stretching
1647–1658	C=C stretching
1045–1182	C=O stretching
1376	C–H bending
1183 and 1025–881	Stretching C–S
1453	Symmetric C–O–C stretching