Synthesis of Polymer Blend Ferrite Composite for Microwave Absorption at X-Band Frequency

摘要

The microwave absorption properties of polymer composite PANI/PVA/NiFe2O3 are investigated. The polymer composites of PANI/PVA and NiFe2O3 are prepared in two steps. NiFe2O3 is synthesized by modified sol gel method and PANI by chemical polymerization method. Microwave absorption parameters of polymer composite are measured at X-band. The microwave absorption is found to be -28 dB (99%) at 10.2 GHz. Different characterization techniques such as SEM-EDX, FTIR and XRD are done. The SEM result shows flakes like structure for PANI/PVA and crystalline structure for NiFe2O3. FTIR of the composite reveals the interaction between the PANI/PVA and NiFe2O3.