| 疏水介孔SiO2的制备与性能表征 |
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| 引用本文： | 张雨青,刘红霞,邵荣,董锐,贾铭琳,陈松.疏水介孔SiO2的制备与性能表征[J].光谱实验室,2011,28(1):55-58. |
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| 作者姓名： | 张雨青 刘红霞 邵荣 董锐 贾铭琳 陈松 |
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| 作者单位： | 盐城工学院化学与生物工程学院;上海丰慧节能环保科技有限公司; |
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| 基金项目： | 上海市南汇区产学研联合项目(08NHCXY017) |
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| 摘 要： | 以廉价的工业级正硅酸乙酯为原料,经过酸碱两步催化制备二氧化硅凝胶,以三甲基氯硅烷/六甲基二硅氧烷混合液对凝胶进行直接表面改性,常压干燥下得到高比表面积疏水性二氧化硅气凝胶.用SEM、IR、N2吸脱附、TG-DTA、接触角的测定等分析方法对二氧化硅化学成分、结构形貌、比表面积、热稳定性和疏水性能进行了研究.结果表明,经改...
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| 关 键 词： | 二氧化硅气凝胶 表面改性 常压干燥 疏水 |
Preparation and Characterization of Hydrophobic Mesoporous SiO_2 |
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| ZHANG Yu-Qing LIU Hong-Xia SHAO Rong DONG Rui JIA Ming-Lin a CHEN Songa.Preparation and Characterization of Hydrophobic Mesoporous SiO_2[J].Chinese Journal of Spectroscopy Laboratory,2011,28(1):55-58. |
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| Authors: | ZHANG Yu-Qing LIU Hong-Xia SHAO Rong DONG Rui JIA Ming-Lin a CHEN Songa |
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| Institution: | ZHANG Yu-Qing LIU Hong-Xia SHAO Rong DONG Rui JIA Ming-Lin a CHEN Song(College of Chemical and Biological Enginering,Yancheng Institute of Technology,Yancheng,Jiangsu 224003,P.R.China)a(Shanghai Fenghui Saving Energy and Protecting Enviroment Co.Ltd.,Shanghai 201204,P.R.China) |
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| Abstract: | Silica gel was prepared by acid-base two step catalysis using cheap industrial tetraethyl orthosilicate(TEOS) as precursor.The obtained silica gel was directly modified by trimethylchlorosilane/hexamethyldisiloxane(TMCS/HMDSO) mixed solution,and then dried at ambient atmosphere to prepare hydrophobic SiO2 aerogel with a high specific surface area.The chemical composites,thermal stability,hydrophobic property of the modified silica aerogel were studied by IR,N2 desorption and adsorption,DTA-TG spectrogram an... |
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| Keywords: | Silica Aerogel Surface Modification Ambient Pressure Drying Hydrophobic |
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