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頁籤選單縮合
題名 | 非水相溶膠-凝膠法合成聚甲基丙烯酸甲脂/二氧化鈦/二氧化矽奈米複合材料提升熱性質之研究=Thermal Stability of PMMA/ SiO2/ TiO2 Tertiary Nanocomposites Via Non-hydrolytic Sol-gel method |
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作者 | 邱紹隆; 江金龍; Ciou, Shao-lung; Chiang, Chin-lung; |
期刊 | 弘光學報 |
出版日期 | 20071100 |
卷期 | 51 2007.11[民96.11] |
頁次 | 頁143-152 |
分類號 | 467.41 |
語文 | chi |
關鍵詞 | 熱穩定性; 溶膠-凝膠法; 奈米複合材料; 非水相合成; 二氧化鈦; 二氧化矽; Thermal stability; Sol-gel method; Nanocomposite; Non-hydrolytic; Titania; Silica; |
中文摘要 | 本研究旨在改善聚甲基丙烯酸甲脂之熱穩定性,將矽氧烷結構與無機的四乙基矽氧烷與鈦醇鹽導入有機的聚甲基丙烯酸甲脂中,利用非水相的溶膠-凝膠方式製成有機/無機奈米複合材料,利用紫外線/可見光光譜分析儀觀察是否具有高度透光性質;在熱重量分析儀的測定上,則是以Qzawa及Kissinger模式求取裂解活化能及利用積分程序裂解溫度計算其熱穩定性,由結果發現導入含二氧化矽、二氧化鈦材料均有助於提升聚甲基丙烯酸甲脂之熱穩定性,並探討其溶解度以了解是否形成網狀結構。 |
英文摘要 | In this study, we use PMMA, tetraethoxysilane(TEOS) and titanium ethoxide(TiEO) to prepare tertiary nanocomposites via non-hydrolytic sol-gel method. Boron trifluoride monoethylamine(BF3C2H5NH2) was used as catalyst. Silica and titanium dioxide are incorporated into nanocomposites to improve the thermal stability. Thermogravimetric analysis (TGA) was used for rapid evaluation of the thermal stability of different materials. The integral procedure decomposition temperature (IPDT) has been correlated the volatile parts of polymeric materials and used for estimating the inherent thermal stability of polymeric materials. Two methods have been used to study the degradation of hybrid during thermal analysis. These investigated methods are Kissenger, Ozawa’s methods to classify the thermal stability of nanocomposites. From the results, silica and titania will enhance the thermal stability of PMMA. We use solubility test to check the network structure of nanocomposites. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。