臺灣博碩士論文加值系統

微膠囊的外殼的對微膠囊的機械性質有顯著的影響，且隨殼材的組成不同而改變。因此本研究以三種奈米陶瓷粉末，二氧化矽、二氧化鈦、二氧化鋯，搭配兩種商售磷基分散劑配製皮克林乳液來製備強化型微膠囊。藉此將三種奈米陶瓷粉末，分別鑲嵌入微膠囊常用殼材-聚尿素甲醛之中，因此本實驗所製備之微膠囊外殼，屬於有機-無機物複合殼材。並利用奈米壓痕儀，觀察強化型微膠囊在應力-應變下的破壞行為以及機械性質。再以流變儀、熱重分析儀、掃描式電子顯微鏡等儀器，搭配熱力學模型討論實驗結果及微膠囊殼材的強化機制。

It is known that the shells of microcapsules plays an important role in dispersibility, adhesion, and mechanical property. Characteristics of different shells may vary greatly owing to its component and formation. In this thesis, several kinds of robust microcapsules were prepared. By encapsulating Pickering emulsions, containing SiO2, TiO2, ZrO2 nanoparticles and two commercial phosphate dispersants, nanoparticles were embedded in the poly-urea-formaldehyde membrane, and enduing it tougher mechanical properties. Moreover, nanoindentation experiment was conducted to characterize failure strength, deformation, and Young’s modulus of this composite-shell. Finally, studies of Rheology, TGA, SEM, and thermodynamic module were induced to discuss the mechanism of robust microcapsules.

中文摘要 …………………………………………………………………………… i
英文摘要 …………………………………………………………………………… ii
致謝 ……………………………………………………………………………………… iii
目錄 ……………………………………………………………………………………… iv
圖目錄 ………………………………………………………………………………… vi
表目錄 ………………………………………………………………………………… ix
第一章　緒論 …………………………………………………………………… 1
　1.1 研究動機 ……………………………………………………………… 1
　1.2 研究目的 ……………………………………………………………… 3
第二章　理論基礎及文獻回顧 …………………………………… 4
　2.1 自修復材料 ………………………………………………………… 4
　2.2 自修復微膠囊 ……………………………………………………… 6
　2.3 微膠囊機械性質 ……………………………………………… 8
　2.4 皮克林乳液 ………………………………………………………… 10
　2.4.1 包覆型態與自由能 ……………………………………… 11
第三章　研究方法及步驟 …………………………………………… 15
　3.1 原料 ……………………………………………………………………… 15
　3.2 濕式珠磨法 ………………………………………………………… 17
　3.3 表面改質 ……………………………………………………………… 17
　3.4 2D球磨法 ……………………………………………………………… 17
　3.5 製備強化型微膠囊 …………………………………………… 17
　3.6 實驗儀器及分析 ………………………………………………… 19
　　　3.6.1 光學顯微鏡 形貌分析 ……………………… 19
　　　3.6.2 掃描式電子微鏡 表面形貌分析 ……… 19
　　　3.6.3 穿隧式電子微鏡 殼材分析 ……………… 19
　　　3.6.4 斷面分析 ………………………………………………… 19
　　　3.6.5 拉伸應變分析 ……………………………………… 21
　　　3.6.6 萃取微膠囊外殼 …………………………………… 21
　　　3.6.7 熱重分析儀分析 …………………………………… 21
　　　3.6.8 熱差分析儀分析 …………………………………… 21
　　　3.6.9 流變儀分析 …………………………………………… 22
　　　3.6.10 高功率超音波震盪 …………………………… 22
　　　3.6.11 奈米壓痕測試 …………………………………… 22
　　　3.6.12 表面電位測試 …………………………………… 22
第四章　結果與討論 ……………………………………………………… 23
　4.1 皮克林乳液 – 強化型微膠囊 ……………………… 23
　　　4.1.1 接觸角 …………………………………………………… 23
　　　4.1.2 固含量與團聚 ……………………………………… 26
　　　4.1.3 皮克林乳液包覆型態 ………………………… 26
　　　4.1.4 斷面分析 ………………………………………………… 26
　4.2 穩態流變性質分析 …………………………………………… 31
　　　4.2.1 黏度與外殼固含量 ……………………………… 31
　　　4.2.2 團聚現象與皮克林乳液包覆 …………… 32
　4.3 殼材熱分析儀分析 …………………………………………… 35
　4.4 機械性質分析 ……………………………………………………… 36
　　　4.4.1 奈米壓痕儀 …………………………………………… 36
　　　4.4.2 拉伸試驗 ………………………………………………… 37
　　　4.4.3 高功率超音波震盪-紫外光-可見光分析 ……………………… 38
第五章　結論 …………………………………………………………………… 39
參考文獻 …………………………………………………………………………… 84
符號彙編 …………………………………………………………………………… 86

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