文化大學機構典藏 CCUR:Item 987654321/21438
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/21438


    题名: 含陰離子連結基之Gemin界面活性劑製備、界面性質及其於奈米溶液分散性及穩定性之研究
    作者: 賴秋君
    贡献者: 紡工系
    关键词: Gemini
    表面張力
    臨界微胞濃度
    日期: 2011-2013
    上传时间: 2012-02-20 14:49:10 (UTC+8)
    摘要: Gemini界面活性劑其分子結構為兩個親水基與兩個疏水基所組成，此特殊結構使其具有較傳統界面活性劑更低的表面張力，臨界微胞濃度，與更佳的界面性質。本計畫探討二系列Gemini型界面活性劑之合成及界面性質，A系列Gemini型界面活性劑為非離子界面活性劑，B系列為包含陰離子性連結基之非離子Gemini型界面活性劑，合成先接maleic anhydride於三丙二醇兩端後，再導入聚乙二醇十八烷基醚於兩端形成A系列非離子Gemini界面活性劑，在於連結基位置加入反丁烯二酸進行自由基反應，使陰離子基團導入於連結基形成B系列Gemini 界面活性劑。二系列Gemini型界面活性劑之界面性質測試包括表面張力（80℃下、含鈣離子及含各種鹽類）、接觸角及起泡性、導電性與黏度，並做乳化粒徑分佈及分散性等應用測試，並與傳統界面活性劑比較，比較其界面性質差異並探討陰離子化連結基對此Gemini結構界面活性劑之界面性質影響。此系列Gemini界面活性劑導入於奈米溶液中以達成分散性之應用，以配方之設計與材料加工參數的相關性取得最佳穩定性奈米溶液配比，並使用分散穩定性鑑定儀LUMiSizer 之S.T.E.P原理分析奈米溶液在其不同材料參數及加工參數對溶液分散穩定性之影響，而由穿透率對其相對時間之關係圖，可得知粒子在高分子奈米溶液中的物理性質，進而求得奈米粒子在溶液中之粒徑大小及分佈PSD，並經由DLS和SEM分析結果交叉認證建立一完整系列評估與鑑定技術。
    Gemini surfactant is constructed by two hydrophilic groups and two hydrophobic groups. They have better surface-activities than traditional surfactants including lower surface tension, cmc and other properties. The objective of this study is to investigate the surface-activities of two series Gemini surfactants include nonionic hydrophilic groups (A series) and nonionic-anionic hydrophilic groups (B series) in their structures. Maleic anhydride was appended to tripropylene glycol and condensation with polyoxyethylenated stearyl ether (A series); anionic hydrophilic moieties were obtained after reacting the tripropylene glycol with fumaric acid groups to form carboxylate group-containing addition products (B series). The surface activities will evaluate by surface tension（at 80℃、 including Ca2+ and including kinds of salts）, contact angle, foaming, conductivity and viscose properties. We will also study the dispersing abilities and emulsion of these surfactants compared with traditional surfactants. Finally, we will investigate the surface activity effect of anionic spacer in Gemini surfactants. Functional nano solution is successfully characterized by adding Gemini surfactants into nano particles solution. The best stable ratios of Nano-solution were obtained by Optimizing material selection and process parameters. The effects of material and process parameters of Nano-solution on stability were described. The multisample analytical centrifuge—LUMiSizer® used in this study employs the STEP™-Technology (Space- and Time-resolved Extinction Profiles), which allows to measure the intensity of the transmitted light as function of time and position over the entire sample length simultaneously. The progression of the transmission profiles contains the information on the kinetics of the separation process and allows particle characterization. The PSD measurements of LUMiSizer were compared with those of DLS and SEM to establish a complete dispersity and stability analysis system of Nano-solution.
    显示于类别:[紡織工程學系] 研究計畫

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