论文部分内容阅读
在90℃水溶液中采用两步晶体生长法制备出类花状ZnO-CoFe2O4复合纳米管束.ZnO纳米管束的管壁厚度大约为60nm,管的直径大约为350nm,CoFe2O4纳米颗粒连续包覆在ZnO纳米管束的表面,CoFe2O4纳米颗粒尺寸小于40nm,壳层厚度随着CoFe2O4在ZnO-CoFe2O4复合纳米管束中相对含量的增加而增加.分别以CoFe2O4纳米颗粒、ZnO-CoFe2O4复合纳米管束及类花状ZnO纳米管束作为吸收剂、酚醛树脂为粘接剂研究了它们的微波吸收性能,结果表明ZnO-CoFe2O4纳米复合材料微波吸收性能优于纯相的CoFe2O4纳米颗粒和类花状ZnO,当ZnO含量占总含量60%时微波吸收效果最佳,最大反射损失达到28dB.
The flower-like ZnO-CoFe2O4 composite nanotube bundles were prepared by two-step crystal growth in aqueous solution at 90 ° C. The wall thickness of the ZnO nanotube bundles was about 60 nm and the tube diameter was about 350 nm. The CoFe2O4 nanoparticles were continuously coated on ZnO nanowires The size of CoFe2O4nanoparticles was less than 40nm and the shell thickness increased with the relative content of CoFe2O4in ZnO-CoFe2O4composite nanotube bundles.By using CoFe2O4nanoparticles, ZnO-CoFe2O4composite nanotube bundles and flower-like ZnO nanowires The results showed that the microwave absorption properties of ZnO-CoFe2O4 nanocomposites were better than those of pure-phase CoFe2O4 nanoparticles and flower-like ZnO. When ZnO content was the total content 60% microwave absorption best, the maximum reflection loss of 28dB.