本論文以機械式液態球磨方式製備多種奈米材料及改質奈米碳管混合水性水泥漆，探討電磁波遮蔽之特性。
關於奈米碳管電磁波遮蔽之研究，將高強韌、高導電性、高深寬比的奈米碳管經過界面活性劑(SDS,NaDDBS)的包覆及酸洗改質，達到均勻分散於建築油漆中。經過量測，顯示過多的分散劑會影響電磁波遮蔽的表現。酸洗過後的奈米碳管，能增加分散性，但碳管本質已被破壞，導電性及電磁波遮蔽效應不佳。
關於碳纖維電磁波遮蔽之研究，接觸面積較小的碳纖維能夠提升較高的奈米材料在油漆中的比例，使導電度大幅提升。將奈米碳管、碳黑及石墨等碳類材料互相混合，能使電磁波屏蔽疊加，但過多的碳黑會影響與碳纖維的結合。羧甲基纖維素能夠使奈米量級的碳黑結合在碳纖維上，能夠達到極高的電磁波遮蔽效應。導電度高金屬奈米粒子有氧化影響，並未幫助增加電磁波遮蔽。
防電磁波經過實際測試，依一底兩度施工實驗，去驗證實驗中油漆是可行施行在真實的牆面上。依經濟部標準檢驗局CNS10757塗料一般檢驗法執行耐久耐熱及剝離試驗。經過不同時間的耐熱烘烤，電磁波屏蔽仍可維持住，而剝離試驗後的試片，結果並未剝落，顯示出防電磁波油漆的附著力極佳。經過模型木屋的測試，模擬房屋內全塗、底部無塗佈、門窗不塗、門窗及底部不塗等四種情況，其經過測量，經過防電磁波油漆遮蔽電磁波下降分別為81.3%~92.7%、51.8%~84.2%、81.8%~90.0%、58.9%~77.9%。而把門不塗的面朝著電磁波發射源，遮蔽電磁波效果降低至42.8% ~ 60.3% (底部無塗)及43.2% ~ 70.8% (底部有塗)。
關鍵字：電磁波遮蔽、酸洗過後的奈米碳管、碳纖維、碳黑

The mechanical agitation manufacture a variety of nanocomposites and treated nanomaterials to explore the characteristics of electromagnetic shieldging
Electromagnetic shielding of the research on carbon nanotubes, the high toughness, high conductivity and high aspect ratio of carbon nanotubes through the surfactants (SDS, NaDDBS) of absorption of carbon nanotubes and acid modification, to dispersed in the building paint. After measurement, excessive surfactants will affect the electromagnetic shielding performance. After carbon nanotubes of acid treatment, can increase the dispersion, but the nature of the carbon tubes have been damaged, electrical conductivity and electromagnetic shielding effect is poor.
Electromagnetic shielding of the carbon fiber research, the small contact area of carbon fiber to enhance the high proportion of the paint, so that it can increase conductivity dramatically. The carbon nanotubes, carbon black and graphite and other carbon-like material can be mixed with each other, and electromagnetic shielding can stack. Excessive carbon black will affect the carbon fiber combination. Carboxymethyl cellulose can combine carbon black with carbon fiber, and achieve very high electromagnetic shielding effect. The oxide influence of high conductive metal nano-particles did not help increase the electromagnetic wave shielding.
Electromagnetic wave through the actual test, “once prime paint and twice finsh paint experiments” verify the implementation of the experiment is feasible in a real paint the wall. According to CNS10757 of BSMI, paint tested durable heat-resistant test and peel test. After durable heat-resistant at different times of heat, electromagnetic shielding can sustain. the peel test specimen did not peel off, showing that the paint have excellent adhesion. T he wooden house model simulate the whole house painted, the bottom of the non-coated, not painted doors and windows, doors, windows and the bottom is not painted. In the four cases, the electromagnetic interference shielding value of the paint decreased 81.3%~92.7%, 51.8% ~ 84.2%, 81.8% ~ 90.0%, 58.9% ~ 77.9%.The wooden door is not painted in the face of the electromagnetic emission source, shielding of electromagnetic waves down to 42.8% ~ 60.3%(the bottom of the non-painted) and 43.2% ~ 70.8% (bottom painting).
Key word: Electromagnetic shielding, carbon nanotubes of acid treatment, carbon fiber, carbon black

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