抄録
New rapid extraction method has been developed to measure quantity of brominated flame retardant in thermosetting resin such as an epoxy circuit board. The epoxy board was solubilized almost completely in many organic solvents at 300 ℃. However, only two solvents, benzyl alcohol or N-methyl-2-pyrolydone, were effective at 250 ℃ for solubilization of the epoxy board. Solubilization of the epoxy board in benzyl alcohol was promoted by sodium hydroxide. Even at 200 ℃, more than 70 % of epoxy board was dissoluble in the presence of sodium hydroxide. Conversion of TBBA increased with temperature, and 40% of the TBBA was decomposed in benzyl alcohol at 250 ℃. Removal of bromine from TBBA was accelerated by sodium hydroxide significantly.
