以浸塗法製備透明導電奈米碳管薄膜：使用乙基纖維素為黏度增加劑

Preparation of Transparent Conductive Carbon Nanotube Film by Dip-Coating Method Using Ethyl Cellulose as a Viscosity Enhancer

張宸翔(CHEN-XIANG ZHANG)

指導教授 ： 陳建忠

國立中正大學/工學院/化學工程學系/碩士(2014年)

摘要

將乙基纖維素(Ethyl cellulose, EC)作為黏度增加劑，溶入多壁奈米碳管(multi-walled Carbon nanotubes, MWNTs)/乙醇懸浮液中製成浸塗液。之後藉由浸塗法(dip coating)製造薄膜，待加熱移除乙基纖維素後，可製備出透光且導電的奈米碳管薄膜。
薄膜的品質由以下幾項因素所影響，浸塗液黏度、浸塗速率、分散劑TX-100、浸塗液各組成濃度等。而製備出的奈米碳管薄膜最低可達片電阻97 Ω/ □，T550 = 2%，以及1250 Ω/ □，T550 = 81%。
浸塗法是常見的濕式製膜法，由於其連續製膜且易於控制，故可有效掌控生產時間，而使用浸塗法製膜，不僅易於將製程從實驗室規模放大，且有利於工業大量生產。

關鍵字

乙基纖維素 ； 浸塗法 ； 奈米碳管薄膜 ； 黏度 ； 聚乙二醇辛基苯基醚

並列摘要

Multi-walled Carbon nanotubes (MWNTs) were dispersed in ethanol and added Ethyl cellulose (EC) as viscosity Enhancer to achieve dip coating solution. Next, transparent conductive CNT films were fabricated by dip coating solution and then we removed EC by heating.
The performance of film were controlled by the viscosity of coating solution, coating speed, Triton X-100 (surfactant), concentration of coating solution, etc. The produced CNT film has a relatively low sheet resistance of 97 Ω/□ at 2 % transmittance (T550) and 1250 Ω/□ at 81 % transmittance (T550).
Dip coating is a well-known coating technique for making liquid thin films in a continuous and controlled manner so it could control production time effectively. The dip coating process is more conductive for scale up and can it is also a high throughput coating method.

並列關鍵字

Triton X-10 ； viscosity ； ethyl cellulose ； dip coating ； cnt film

參考文獻

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