Determination of aromatic epoxy resins and their thermal degradation products in air by infrared spectrometry

Abstract

A quantitative determination of epoxy powder paint and its thermal degradation products in air was carried out by infrared (IR) spectrometry. Using chloroform-d as a solvent allowed analysis at 1510 cm^–1, where the aromatic absorption is about ten times stronger than at 1610 cm^–1. Filter sampling was applied both to epoxy powder and to the high relative molecular mass thermal degradation products of a powder paint. Collection on filters and IR analysis proved to be simple, quick and accurate.