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標題Title: 2009國際奈米研討會
作者Authors: 吳幸昇
上傳單位Department: 機械工程系
上傳時間Date: 2009-11-27
上傳者Author: 吳幸昇
審核單位Department: 機械工程系
審核老師Teacher: 莊承鑫
檔案類型Categories: 文宣Literature
關鍵詞Keyword: 氣旋塗佈、滾印
摘要Abstract: Purpose :
This paper presents an air-nozzle-based coating system for coating a micrometer-thick polymer layer on the roller.
Experimental Method:
The scheme of the coating system consists of three parts: a desktop lathe, polymer supply system and air jet system. First, a viscous polymer was dripped and spun by a syringe pump and the lathe rotation, respectively. Then, a high pressure air jet spray on the coated roller to flatten and thin the polymer layer by using a flat-shape air-nozzle. In order to coat different thickness of polymer layer, we can adjust proper operational parameters of air-nozzle-based coating system, such as the air pressure and the gap between nozzle and roller, etc.
Application:
Coating a thin polymer layer on the roller is a critical step for patterning the roller as a mold in the roll-to-roll (R2R) process. Therefore, this technology can be expected to apply for roller mold fabrication and other applications in flexible electronics.
Conclusion :
The thickness of coated layer on roller could be controlled by the gap between nozzle and roller and the air pressure. By varying these two parameters, the range of thickness of PDMS coated on the roller can be from 100 to 20 μm, furthermore, the roughness can be control under the 1μm.

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