Flow of Chemical Analysis

We will introduce an example of analyzing organic-inorganic composite materials using FT-IR and SEM-EDX. FT-IR measurements were conducted on the glossy and non-glossy areas of a PET bottle label, and the IR spectra differed between the glossy and non-glossy areas. Since the non-glossy area resembles the spectrum of acrylic resin, it is considered that the main component is acrylic resin. Additionally, SEM-EDX measurements were performed on both the glossy and non-glossy areas, and EDX spectra and backscattered electron images were obtained, revealing that the non-glossy area contained sulfur (S) and barium (Ba), which were not detected in the glossy area.

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