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Microwave absorbing coating samples were fabricated with carbon nanotube （CNT） and nanoscaled tetrapod-shaped ZnO （NT-ZnO） as the absorbents and epoxy resin as the binder. The influence of the content of CNT and NT-ZnO in the absorbing coatings on microwave absorbing property was investigated. After 3-layer coating, when the content of CNT reached 12%, NT-ZnO reached 8% and the coating thickness was 15 mm, the results showed that the minimum reflection was -2307 dB. The frequency width reached 5 GHz below -10 dB and the area density was 2 kg/m2 The microwave absorbing performance has obviously improved compared with that of the pure carbon nanotube and nano tetrapleg ZnO coating. Finally, the absorbing mechanism was discussed.
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Keywords:
- carbon nanotube /
- nanoscaled tetrapod-shaped ZnO /
- microwave absorbing /
- reflection
[1] ［1］Liu S H, Cui X D, Zhao Y B 2006 Acta Phys. Sin. 55 5764 （in Chinese）［刘顺华、 崔晓东、 赵彦波 2006 55 5764］
[2] ［2］Zou Y H, Jiang L, Wen S H, Shu W X, Qing Y J, Tang Z X 2008 Appl. Phys. Lett. 93 261115
[3] ［3］Iijma S 1991 Nature 354 56
[4] ［4］Zhao D L, Shen Z M 2008 Mater. Lett. 62 3704
[5] ［5］Xiang C S, Pan Y B, Liu X J 2005 Appl. Phys. Lett. 87 123103
[6] ［6］Fan Z J, Luo G H, Zhang Z F, Zhou L, Wei F 2006 Mater. Sci. Eng. B 132 85
[7] ［7］Nanni F, Travaglia, Valentini M 2009 Compos. Sci. Technol. 69 485
[8] ［8］Xie G Y, Xia P 2007 Acta Phys. Sin. 56 7070 （in Chinese）［谢根全、 夏平 2007 56 7070］
[9] ［9］Zhao D L, Zeng X W, Shen Z M 2005 Acta Phys. Sin. 54 3678 （in Chinese）［赵东林、 曾宪伟、 沈曾民 2007 54 3678］
[10] ］Cao J W, Huang Y H, Zhang Y, Liao Q L, Deng Z Q 2008 Acta Phys. Sin. 57 3641 （in Chinese）［曹佳伟、 黄运华、 张越、 廖庆亮、 邓战强 2008 57 3641］
[11] ］Zhou Z W, Liu J J, Hu S C 2006 Mater. Sci. Eng. B 126 93
[12] ］Dai Y, Zhang Y, Li Q K, Nan C W 2002 Chem. Phys. Lett. 358 8
[13] ］Zhou S W, Chen W Q 2008 Chem. Eng. Equi. 57 1737 （in Chinese）［周诗文、 陈文钦 2008 材料工程与装备 57 1737］
[14] ］Yusoff A N, Abdullah M H 2002 J. Appl. Phys. 92 876
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[1] ［1］Liu S H, Cui X D, Zhao Y B 2006 Acta Phys. Sin. 55 5764 （in Chinese）［刘顺华、 崔晓东、 赵彦波 2006 55 5764］
[2] ［2］Zou Y H, Jiang L, Wen S H, Shu W X, Qing Y J, Tang Z X 2008 Appl. Phys. Lett. 93 261115
[3] ［3］Iijma S 1991 Nature 354 56
[4] ［4］Zhao D L, Shen Z M 2008 Mater. Lett. 62 3704
[5] ［5］Xiang C S, Pan Y B, Liu X J 2005 Appl. Phys. Lett. 87 123103
[6] ［6］Fan Z J, Luo G H, Zhang Z F, Zhou L, Wei F 2006 Mater. Sci. Eng. B 132 85
[7] ［7］Nanni F, Travaglia, Valentini M 2009 Compos. Sci. Technol. 69 485
[8] ［8］Xie G Y, Xia P 2007 Acta Phys. Sin. 56 7070 （in Chinese）［谢根全、 夏平 2007 56 7070］
[9] ［9］Zhao D L, Zeng X W, Shen Z M 2005 Acta Phys. Sin. 54 3678 （in Chinese）［赵东林、 曾宪伟、 沈曾民 2007 54 3678］
[10] ］Cao J W, Huang Y H, Zhang Y, Liao Q L, Deng Z Q 2008 Acta Phys. Sin. 57 3641 （in Chinese）［曹佳伟、 黄运华、 张越、 廖庆亮、 邓战强 2008 57 3641］
[11] ］Zhou Z W, Liu J J, Hu S C 2006 Mater. Sci. Eng. B 126 93
[12] ］Dai Y, Zhang Y, Li Q K, Nan C W 2002 Chem. Phys. Lett. 358 8
[13] ］Zhou S W, Chen W Q 2008 Chem. Eng. Equi. 57 1737 （in Chinese）［周诗文、 陈文钦 2008 材料工程与装备 57 1737］
[14] ］Yusoff A N, Abdullah M H 2002 J. Appl. Phys. 92 876
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