張力調控狹縫式塗佈技術(tensioned-web slot coating，TWSC)具光學膜產業上之運用潛力，為一超薄高速的預調式塗佈方式，在工業上極具應用價值。
本實驗所塗佈之濕膜厚度約在1μm左右，相較於傳統狹縫式塗佈，TWSC具備了超薄塗佈之優勢，又由於光學膜之塗料通常為低黏度之塗液，故本論文將重心擺在低黏度牛頓流體其塗佈視窗與最小濕膜厚度之分析。影響張力調控狹縫式塗佈系統的變因很多，牽涉的不僅僅是流體力學，尚有固體力學與材料科學等相關知識。除了利用流場觀測技術輔助建立TWSC之塗佈視窗外，本研究尚將變因歸納成塗液性質、基材性質、及操作參數三大類，並對其作敏感度之分析，發現黏度降低、基材張力增大、以及包覆角增大，有利於使塗佈膜厚下降，機制可分為力平衡或是流體累積壓力兩種類，其一為流體應力與基材變形力平衡後所形成的塗佈間隙較小，其二為流體累積壓力大，故可承受高基材速度下的塗佈，皆解釋為何可塗佈膜厚較薄。
本論文最終利用無因次分析，歸納預測最小濕膜厚的經驗方程式，分析最小濕膜厚度受tension number、force number 、length number等參數之影響，將此三無因次參數相結合可得到最小濕膜厚度的經驗方程式，可做為事先預測該條件下的最小濕膜厚度曲線之方法。

摘要………………………………………………………………………I
目錄….…………………………………………………………………Ⅲ
圖目錄……………………………………………………………………V
表目錄………………….……………………………………………ⅩⅡ
壹、緒論…………………………………………………………………1
1-1塗佈技術簡介………….……………………………………………1
1-2研究目標………………….…………………………………………4
貳、文獻回顧……………………………………………………………7
2-1狹縫式塗佈技術…………….………………………………………7
2-2彈性流體動力接觸系統……….……………………………………9
2-2-1彈性流體動力接觸系統簡介……………………………………10
2-2-2彈性流體動力接觸系統機制……………………………………10
2-2-2a流體…………………………………………………… ………10
2-2-2b固體……………………………………………………… ……11
2-2-3箔片軸承系統……………………………………………………13
2-3張力調控狹縫式塗佈技術………………………………………15
2-3-1學術論文回顧……………………………………………………15
2-3-2專利回顧…………………………………………………………18
參、實驗方法………………………………………………………… 46
3-1分析儀器與週邊設備………………………………………………46
3-2實驗藥品與耗材……………………………………………………49
3-3實驗設備……………………………………………………………50
3-4流體物性……………………………………………………………53
3-5基材物性……………………………………………………………53
3-6流場觀測系統………………………………………………………54
3-7量測方法……………………………………………………………55
3-8實驗步驟……………………………………………………………57
肆、研究方法………………………………… ………………………62
4-1實驗參數的定義……………………………………………………62
4-2塗佈缺陷的判定……………………………………………………64
4-3模唇形狀……………………………………………………………69
4-4最小成膜壓力………………………………………………………70
伍、結果與討論.………………………………………………………71
5-1塗佈視窗的建立……………………………………………………71
5-2流體累積壓力與流量及基材速度之關係…………………………76
5-3黏度的效應………………………………………………………78
5-4表面張力的效應…………………………………………………81
5-5基材張力的效應…………………………………………………82
5-6基材厚度的效應…………………………………………………87
5-7包覆角的效應……………………………………………………88
5-8模唇形狀的效應…………………………………………………92
5-9無因次群分析……………………………………………………94
陸、 結論………………………………………………………………103
參考文獻…………………………………………………………….…105符號說明…………………………………………………………….…110

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