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  • 學位論文

二氧化鈦/多壁奈米鈦管之電磁波屏蔽性質研究

Study on electromagnetic-Interference Shielding on multi-walled Carbon Nanotube/Titanium Dioxide Composites

指導教授 : 徐文光
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摘要


本實驗主要探討以聚二甲基矽氧烷(PDMS)為基材,加入不同濃度的多壁奈米碳管/二氧化鈦複合材料,進行電磁波屏蔽效應的量測,並以介電係數、阻抗等數值來分析電磁波屏蔽的機制。 研究中藉由溶膠凝膠法(sol-gel)使多壁奈米碳管表面包覆均勻金紅石相(rutile)的二氧化鈦,我們發現添加二氧化鈦可以有效提升反射損失的效果,也觀察到此聚二甲基矽氧烷/多壁奈米碳管/二氧化鈦複合物的電磁波屏蔽主要的機制為反射損失,次要機制為吸收損失。

並列摘要


Electromagnetic shielding (EMI) of composites made from PDMS and TiO2 coated multi-walled carbon nanotubes is studied and permittivity and impedance are also measured to discuss the dielectric properties of the composites. Results suggest that TiO2 coatings produce a synergistic effect in reflection mechanism.

並列關鍵字

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參考文獻


1. Waser, R., Nanoelectronics and Information Technology. 2003: Wiley-VCH.
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4. M. S. Dresselhaus, G.D., and P. C. Eklun, Science of fullerenes and carbon nanotubes. 1996.
5. R. Saito, M.S.D., G. Dresselhaus Physical Properties Of Carbon Nanotubes. 1998.
7. Saito, R., et al., ELECTRONIC-STRUCTURE OF CHIRAL GRAPHENE TUBULES. Applied Physics Letters, 1992. 60(18): p. 2204-2206.

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