FTIR analysis of polyester enamel cure

Author

Xu, James J.

Author_Institution

Phelps Dodge Magnet Wire Co., Fort Wayne, IN, USA

fYear

1995

fDate

18-21 Sep 1995

Firstpage

263

Lastpage

265

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings

Conference_Location

Rosemont, IL

Print_ISBN

0-941783-15-4

Type

conf

DOI

10.1109/EEIC.1995.482374

Filename

482374