淡江大學機構典藏:Item 987654321/32757
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/32757


    Title: 改質奈米二氧化矽與紫外光硬化型PU樹脂之混成材料
    Other Titles: Hybridization of modified nano-silica with UV-cured PU resin
    Authors: 廖雅婷;Liao, Ya-ting
    Contributors: 淡江大學化學學系碩士班
    陳幹男;Chen, Kan-nan
    Keywords: 二氧化矽;Nanosilica;Hybrid;UV-PU;UV-curable;nanocomposite
    Date: 2008
    Issue Date: 2010-01-11 02:42:30 (UTC+8)
    Abstract: 本論文研究有機/無機奈米複合聚氨酯(PU)材料: 1. 二氧化矽奈米顆粒摻合紫外光硬化型PU薄膜；2. 二氧化矽奈米顆粒表面經甲基丙烯酸環氧丙酯(GMA)改質後，混成紫外光硬化型PU薄膜。藉由彼此相互對照，來探討二氧化矽奈米顆粒改質前後，在紫外光硬化型PU之分散情形，並觀察奈米二氧化矽奈米顆粒改質前後的差異。
    針對有機/無機奈米複合PU材料的物理性質(如膠含量、吸水率、對水損失率、吸乙醇率、對乙醇損失率、接觸角及硬度)、熱性質(熱重分析與動態機械分析)、水蒸氣穿透率、可見光穿透率以及掃描式電子顯微鏡等，於本文中有詳細的討論。
    由SEM結果證實，改質之二氧化矽奈米顆粒混成紫外光硬化型PU薄膜，奈米顆粒保持20 nm尺寸之分散，薄膜可見光穿透率維持90 %以上，具有優良的透光率，且各項性質較未改質之奈米二氧化矽為佳，未來期望以塗覆技術應用於抗反射玻璃，如面板或太陽能電磁等方面。
    Organic/inorganic hybridized PU composites are obtained from the blending of nano-silica and UV-curable polyurethane (PU). The nano-silica has been modified by the incorporation of glycidyl methacrylate (GMA) and becoming UV-reactive nano-silica. The UV-curable PU composite systems with nano-silica and modified nano-silica and photo-initiator are carried out by UV-radiation, respectively. The UV-cured PU composites are evaluated by the measurements of physical, mechanical and thermal properties.
    Furthermore, the SEM micrographs of these PU composites proved that the dispersion of that with modified nano-silica has better nano-silica dispersion than the original nano-silica. Other properties such as transparency, water vapor permeability, UV/visible absorbance are far better than that of the original nano-silica. The process of nano-silica/PU composite with modified nano-silica has the potential function of anti-reflection application for solar cell and LED panel.
    Appears in Collections:[Graduate Institute & Department of Chemistry] Thesis

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