Structural characterization of fillers of inorganic materials in bismaleimide resins

Abstract Because of its dimensional stability, minimal shrinkage, chemical and fire resistance, good mechanical qualities and high resistance to a variety of solvents, acids and water, bismaleimide (BMI) thermosetting polymers are mostly employed in aerospace applications. Corrosion prevention has also been accomplished using BMI coating. The addition of inorganic materials like metal oxides can influence the properties of BMI as an inorganic–organic composite. Ferric chloride–bismaleimide (FeCl3–BMI) and titania–bismaleimide (TiO2–BMI) composites were synthesized. Fillers of inorganic compounds like MnO2, Ni (NO3)2·6H2O and Al2(SO4)3 were synthesized as well. The structural and crystalline configuration as well as physicochemical changes were thoroughly studied by XRD and Fourier transform infrared spectroscopy (FTIR).