在花状CuS微球表面原位聚合生成聚苯胺（PANI），制备核-壳结构花状CuS/PANI复合材料，并研究了花状CuS/PANI的电磁屏蔽效能。XRD、SEM、TEM、TG、FT-IR和UV-Vis等表征结果证明PANI原位聚合在六方相花状CuS表面及其相互作用的存在。电磁屏蔽效能测试结果表明，CuS/PANI的屏蔽效能与CuS质量分数密切相关。当硫化铜质量分数为50%，匹配层厚度3 mm，CuS/PANI在300 kHz~3.0 GHz频率范围内的屏蔽效能小于-18 dB，在2.78 GHz左右有最大损耗-45.2 dB。

The novel flower-like CuS/PANI composites with core-shell structure are prepared through in-situ polymerization of PANI on the surface of flower-like CuS microspheres. The electromagnetic interference (EMI) shielding effectiveness (SE) of the prepared composites are studied. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), Fourier transform infrared (FTIR) spectroscopy, UV-Vis optical absorption spectroscopy, and thermogravimetric analysis (TG) are used to characterize the obtained composites. The results reveal that flower-like CuS is uniformly coated by PANI shell and the interaction between CuS and PANI exists. Most importantly, compared with original CuS and pure PANI, the novel flower-like PANI/CuS composites exhibits remarkably enhanced shielding effectiveness against electromagnetic interference. The shielding effectiveness of PANI/CuS is closely related to the mass fraction of CuS. When the mass fraction of CuS is 50% and the thickness of matching layer is 3 mm, the shielding effectiveness of PANI/CuS is below -18 dB in the frequency range of 300 KHz to 3 GHz and the maximum loss of electromagnetic interference reaches -45.2 dB at around 2.78 GHz.

郁思冲(1997-),男,本科在读,从事电磁屏蔽及吸波材料的研究,2351747094@qq.com。