Title :
FTIR analysis of polyester enamel cure
Author_Institution :
Phelps Dodge Magnet Wire Co., Fort Wayne, IN, USA
Abstract :
This paper deals with the cure mechanisms of commercially available polyester-based enamels for magnet wire insulation coating applications. Fourier transform infrared (FTIR) spectroscopy was employed to monitor the cure. It has been found that the reduction of the OH intensity can be utilized to monitor the cure. The slight increase and shift of carbonyl bands were also observed, indicating both crosslinking bondings and complexation could be formed. The enamel cure process involves: (1) solvent evaporation; (2) rapid molecular weight buildup/crosslinking during solvent evaporation; and (3) cure saturation. The degree of cure was also evaluated
Keywords :
Fourier transform spectroscopy; electric breakdown; infrared spectroscopy; insulated wires; insulation testing; organic insulating materials; FTIR spectroscopy; OH intensity; applications; carbonyl bands; complexation; crosslinking bondings; cure mechanisms; insulation coating; magnet wire; molecular weight; polyester enamel cure; solvent evaporation; Cable insulation; Coatings; Fourier transforms; Infrared spectra; Infrared surveillance; Magnetic analysis; Monitoring; Saturation magnetization; Solvents; Wire;
Conference_Titel :
Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-941783-15-4
DOI :
10.1109/EEIC.1995.482374
