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研究生： 朱可敬
論文名稱： 兩性水膠的合成及作為水泥砂漿之自養護劑
指導教授： 許貫中
學位類別： 碩士
Master
系所名稱： 化學系
Department of Chemistry
論文出版年： 2008
畢業學年度： 96
語文別： 中文
中文關鍵詞： 水膠
論文種類： 學術論文
相關次數： 點閱：153  下載：0 
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    • 本篇論文主要是合成兩性離子型的水膠，poly(acrylamide-co-DAE) (PDAE)，探討單體比例、起始劑、交聯劑與水解時間對PDAE水膠吸水率的影響，以及水膠在純水與鹽水中，在不同pH下的吸水率。並且評估PDAE水膠作為水泥砂漿自養護劑之可行性，即探討PDAE對水泥砂漿試體的保水率、內部相對溼度、抗壓強度之影響。合成之PDAE以FT-IR光譜確認其結構。
    研究結果顯示最佳反應條件為DAE：AAm = 4：6、APS = 1.3 mol%、MBA = 0.5 mol%，所製得之PDAE在純水中的吸水率可達400 g/g；在0.1M NaCl(aq)、0.1M CaCl2(aq)的吸水率分別為39.3、31.1 g/g。最佳水解時間為六小時，可使PDAE吸水率由400增加到713 g/g；在0.1M之NaCl(aq)的吸水率由39.3增加到78.2 g/g。
    以PDAE作為水泥砂漿之自養護劑，測試結果可知最佳添加量為0.14% ，所形成的水泥砂漿試體的保水率、內部相對溼度與控制組相比較均有提升，抗壓強度則略為下降。

    摘要 I Abstract II 目錄 III 圖目錄 VII 表目錄 X 第一章 緒論 1 1-1 前言 1 1-2 研究目的 2 第二章 文獻回顧 3 2-1 高吸水性水膠簡介 3 2-2 水膠之吸水原理 5 2-3 水膠之組成與分類 7 2-4 影響水膠吸水能力之因素 9 2-4-1 交聯密度 10 2-4-2 水溶液之離子強度 10 2-4-3 水溶液之pH值 11 2-5 高吸水性水膠相關文獻彙集 12 2-6 水泥 14 2-6-1 卜特蘭水泥之組成 14 2-6-2 水泥之水化 15 2-7 養護之重要性 17 第三章 水膠之合成與實驗流程 24 3-1 實驗流程 24 3-2 實驗材料與實驗設備 24 3-2-1 藥品 24 3-2-2 水泥 25 3-2-3 實驗設備 25 3-3 實驗方法 26 3-3-1 CDPA之合成 26 3-3-2 DAE之合成 27 3-3-3 PDAE之合成 27 3-4 聚合物結構鑑定及性質分析 29 3-4-1 紅外線 (IR) 光譜分析 29 3-4-2 核磁共振 (1H-NMR) 光譜分析 29 3-4-3 示差掃描式熱卡計 (DSC) 熱分析 29 3-4-4 固含量之測量 29 3-4-5 PDAE吸水率之測量 30 3-4-6 PDAE在不同鹽水溶液中的吸水率 30 3-4-7 PDAE在不同pH水溶液中吸水率之測量 30 3-4-8 聚合物之水解程度 31 3-5 聚合物PDAE對水泥砂漿之性質分析 32 3-5-1 水泥砂漿試體之拌製 32 3-5-2 水泥砂漿試體重量損失量之測量 33 3-5-3 水泥砂漿試體保水率之測量 33 3-5-4 水泥砂漿試體抗壓強度之測量 33 3-5-5 水泥砂漿試體溼度之測量 34 第四章 結果與討論 38 4-1 聚合物之結構鑑定 38 4-1-1 CDPA之結構鑑定 38 4-1-2 DAE之結構鑑定 38 4-1-3 PDAE之結構鑑定 39 4-2 反應條件對PDAE水膠吸水率之影響 40 4-2-1 單體比例對PDAE吸水率之影響 40 4-2-2 起始劑濃度對PDAE吸水率之影響 41 4-2-3 交聯劑濃度對PDAE吸水率之影響 42 4-2-4 水解時間對PDAE吸水率之影響 43 4-3 鹽水溶液對PDAE吸水率之影響 46 4-4 不同pH水溶液對PDAE吸水率之影響 49 4-5 PDAE對水泥砂漿試體性質之影響 50 4-5-1 PDAE對試體保水率之影響 50 4-5-2 PDAE對試體內部相對溼度之影響 51 4-5-3 PDAE對試體抗壓強度之影響 51 第五章 結論 69 第六章 參考資料 71

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