BaFe12O19 from thermal decomposition of bimetallic triethanolamine complex as magnetic filler for bioplastics

A facile method for preparation of barium hexaferrite, BaFe12O19 was reported. The barium hexaferrite synthesized via the metal organic complex formed by reacting Ba(NO3)2 and Fe(NO3)3.9H2O with triethanolamine, N(CH2CH2OH)3, ligand using ethylene glycol, HOCH2CH2OH, as a solvent and subsequent calcination. Effect of calcination temperatures on the material characteristics was examined by XRD, FTIR and SEM. Magnetic properties of the prepared products were studied by vibrating sample magnetometry (VSM). The hysteresis loop of the BaFe12O19 sample prepared by calcining at 1200 °C for 2 h showed hard magnetic behavior with coercivity (Hc) of 2270 Oe and saturation magnetization (Ms) of 56.89 emu/g. However, the BaFe12O19 sample calcined at 1000 °C for 8 h exhibited better magnetic properties with larger coercivity (Hc = 4260 Oe) and saturation magnetization (Ms = 59.44 emu/g). In addition, the preliminary work of using the barium ferrite calcined at 1200 °C for 2 h as a filler for polybutylene succinate (PBS) based composite materials to make the magnetic composite materials was carried out.