论文部分内容阅读
In order to investigate the impedance matching properties of microwave absorbers,the ternary nanocomposites of GO/PANI/Fe_3O_4(GPF) are prepared via a two-step method,GO/PANI composites are synthesized by dilute polymerization in the presence of aniline monomer and GO,and GO/PANI/Fe_3O_4 is prepared via a co-precipitation method.The obtained nanocomposites are characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),and Fourier transform infrared spectroscopy(FTIR),respectively.The microwave absorbability reveals enhanced microwave absorption properties compared with GO,PANI,and GO/PANI.The maximum reflection loss of GO/PANI/Fe_3O_4 is up to-27 dB at 14 GHz with its thickness being 2 mm,and its absorption bandwidths exceeding-10 dB are more than 11.2 GHz with its thickness values being in the range from 1.5 mm-4 mm.It provides that GO/PANI/Fe_3O_4 can be used as an attractive candidate for microwave absorbers.
In order to investigate the impedance matching properties of microwave absorbers, the ternary nanocomposites of GO / PANI / Fe_3O_4 (GPF) are prepared via a two-step method, GO / PANI composites are synthesized by dilute polymerization in the presence of aniline monomer and GO , and GO / PANI / Fe_3O_4 is prepared via a co-precipitation method. The obtained nanocomposites are characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR), respectively. absorbability reveals enhanced microwave absorption properties compared with GO, PANI, and GO / PANI. The maximum reflection loss of GO / PANI / Fe_3O_4 is up to-27 dB at 14 GHz with its thickness being 2 mm, and its absorption bandwidths exceeding-10 dB are more than 11.2 GHz with its thickness values being in the range from 1.5 mm-4 mm. It provides that GO / PANI / Fe_3O_4 can be used as an attractive candidate for microwave absorbers.