Nano elementlerin ferrit kompozit malzemeye etkisi

Polymer nanocomposite and magnetic ferrite materials offer significant potential in the development of advanced materials for a wide variety of high-tech applications including in the fields of electronics and magnetic devices, medical therapeutics diagnostics, and magnetic drug carriers. In addition, magnetic iron oxide nanoparticles with various additives have recently been used for biomedical applications. Such novel composite nanomaterials benefit from the synergy between the doped elements and polymer chains and the large amount of interfacial area created by the nanostructure. On the other hand, magnetic nanoparticles can exhibit superior magnetic properties and can be used to form low concentration in different matrices. In this thesis, Nano composite (Ni1-xSrxFe2O4) material was prepared by using Sol-gel self-combustion method with certain weight ratios (0.0, 0.1, 0.3, 0.5, 0.7, 0.9). Using nitrate materials, citric acid and ammonium, the samples were sintered at 700 oC for two hours, then the materials were calcined at the same temperature for two hours. The structural properties of the compounds were investigated by using X-ray diffraction (XRD) technique and the surface structure was investigated by using Field Emissin Scanning Electron Microscopy (FESEM) technique. Accordingly, the Energy Dispersive X-ray (EDX) technique was used to invesitigate the presence of elements present in the produced samples and the results showed that the composite preparation is based on polymerization between the polyurethane polymer and ferrite particles. Polyurethane polymer and nanoparticles were used for ferrite by comparing with polymers at different mixing ratios (25, 50, 75%). Addition of 50% by weight to 50% by weight of ii Co0.7Ca0.3Fe3O4 of the polyurethane polymer-based polymer matrix increases the mechanical parameters compared to the pure polymer samples. Data from experimental procedures show that it forms the reinforcement of cobalt/calcium nanoparticle ferrites that act as reinforcing material for the polymer matrix.