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研究生： 廖邑崇
Liao, Yi-Chung
論文名稱： 以3-氨丙基三乙氧基矽烷改質α-氧化鋁及補強環氧樹脂之研究
Modification of α-Al2O3 with 3-aminopropyltriethoxysilane and reinforcing the epoxy resin
指導教授： 黃紀嚴
Huang, Chi-Yen
學位類別： 碩士
Master
系所名稱： 工學院 - 資源工程學系
Department of Resources Engineering
論文出版年： 2007
畢業學年度： 95
語文別： 中文
論文頁數： 69
中文關鍵詞： 表面改質 、氧化鋁 、3-氨丙基三乙氧基矽烷
外文關鍵詞： silane, Al2O3, APS, surface modification
相關次數： 點閱：113  下載：2 
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    • 在日常生活中高分子的應用極為廣泛，為增加使用時的耐用度，提升高分子的本質特性，加上複合概念的興起，以陶瓷粉末填充至高分子之研究，甚至以添加奈米粉末填充至高分子等題目，皆是討論的重點。
    本研究使用環氧樹脂為高分子基質，以各種不同重量百分比的α-氧化鋁來補強環氧樹脂，以3-氨丙基三乙氧基矽烷用來進行氧化鋁的表面改質，經過真空抽氣過濾後，以漿料的形式直接填充至環氧樹脂，經過表面改質後之粉末，與環氧樹脂並無產生相分離。
    研究顯示改變氧化鋁粉末之酸鹼值，可以得到在鹼性環境中，矽烷的披覆效果最好，由於在FTIR中發現Si-O-Si鍵結但無Si-O-Al鍵結存在，並根據表面電位的量測，推論APS是以縮合完的結構用物理吸附的形式披覆於氧化鋁表面上。
    所得出的複合樹脂，最佳的熱處理條件為120℃一小時，可以快速使其硬化，且在1wt%的添加下，因為粉體顆粒分散最佳，故可得到高強度之樹脂，而添加量的增加可提升複合樹脂之熱穩定性質，延緩分解溫度並於600℃時依然保持50%以上的重量。

    Polymer is widely applied in the ordinary, especially the epoxy resin because of its high mechanical strength and the adhesive property. With the developing of composite science, the hybrid materials of the ceramics-reinforced polymer researches which focus on the mechanical and thermal properties increases rapidly in the recent years.
    The epoxy resin and the α-Al2O3 powders modified by the 3-amino- propyltriethoxysilane (APS) are served as the matrix and the rein- forcement, respectively. The slurry included modified-powders is directly mixing with the epoxy resin with a magnetic stirrer after vacuuming the ethanol as solvent. The instruments analyzing Al2O3/epoxy composites are BET, FTIR, Zeta-Potential, TG, MTS and SEM.
    It is observed that the coating effect of the APS is the superior in the base environment with a condensation form by physical adsorption on the α-Al2O3 surface. The excellent strength composite can be synthesized by the 1wt% addition of α-Al2O3 and on the curing condition of 120 oC and 1 hour, and the thermal stability increases with the addition increasing.

    摘要 I Abstract II 致謝 III 總目錄 IV 表目錄 VI 圖目錄 VII 第一章 緒論 1 1-1 前言 1 1-2 研究目的 2 第二章 理論基礎及前人研究 3 2-1 α-氧化鋁結構及特徵 3 2-2 矽烷 4 2-2-1 矽烷的沿革 4 2-2-2 矽烷的結構 5 2-3 影響矽烷之各項因素探討 7 2-3-1 pH值對於水解的影響 7 2-3-2 水解時間的影響 9 2-3-3 水量對於水解的影響 12 2-3-4 矽烷於FTIR的相關研究 14 2-4 擴散電雙層 19 2-5 聚合反應介紹 22 2-5-1 聚合機制簡介 22 2-5-2 逐步聚合反應 22 2-5-3 連鎖聚合反應 23 2-5-4環氧樹脂與含氨基矽烷之鍵結模式 25 2-6氧化鋁/環氧樹脂複合系統之應力研究 27 2-7 矽烷與環氧樹脂系統之熱性質探討 31 第三章 實驗方法與步驟 34 3-1 實驗材料與設備 34 3-1-1 實驗材料 34 3-1-2 實驗設備 36 3-2 實驗流程及步驟 37 3-3 鍵結模型 38 3-4性質分析 40 3-4-1 FTIR分析 40 3-4-2 表面電位量測 40 3-4-3 比表面積檢測(BET) 41 3-4-5 三點彎曲測試法 42 3-4-6 熱性質分析 43 3-4-7 掃描式電子顯微影像(SEM) 43 第四章 結果與討論 44 4-1 FTIR分析結果 44 4-1-1 矽烷披覆觀察 44 4-1-2 矽烷與環氧樹脂鍵結之分析 45 4-2 改質氧化鋁粉末之表面電位 48 4-3 比表面積測定 49 4-4 強度分析 50 4-4-1 硬化溫度的影響 50 4-4-2 硬化時間的影響 51 4-4-3 氧化鋁環境酸鹼值的影響 53 4-4-4 氧化鋁重量百分比不同之影響 54 4-4-4-1 微米級氧化鋁 54 4-4-4-2 奈米級氧化鋁 55 4-5 熱重分析 57 4-6 氧化鋁顆粒分佈觀察 59 第五章 結論 65 參考文獻 66

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