| 硅气凝胶最佳制备条件的研究 |
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| 引用本文： | 高秀霞,吴贞,张伟娜,陈清禹,任敏,朱果逸.硅气凝胶最佳制备条件的研究[J].长春理工大学学报,2008,31(3). |
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| 作者姓名： | 高秀霞 吴贞 张伟娜 陈清禹 任敏 朱果逸 |
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| 作者单位： | 长春理工大学,化学与环境工程学院,长春,130022;吉林师范大学,化学学院,四平,136000;北京理工大学,北京,100081;中国科学院,长春应用化学研究所,电分析化学国家重点实验室,长春,130022 |
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| 摘 要： | 近年来对世界上质量最轻、隔热性最好、性能独特的固体材料--二氧化硅气凝胶的研究越来越广泛,而制备的条件是研究它们的关键.本文采用四因素三水平的正交实验研究其常压干燥的最佳制备条件,并研究了正硅酸乙酯(TEOS)、水、乙醇、pH值四因素对二氧化硅气凝胶性能的影响,结果表明:以TEOS:H2OO:EtOH=1:6:5(摩尔比)混合调节pH=6～7在70℃水浴中凝胶所得到的气凝胶性能相对较好.
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| 关 键 词： | SiO2气凝胶 溶胶-凝胶法 正交实验 |
Studies on the Optimum Preparation Conditions of the Silica Aerogels |
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| GAO Xiuxia,WU Zhen,ZHANG Weina,CHEN Qingyu,REN Min,ZHU Guoyi.Studies on the Optimum Preparation Conditions of the Silica Aerogels[J].Journal of Changchun University of Science and Technology,2008,31(3). |
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| Authors: | GAO Xiuxia WU Zhen ZHANG Weina CHEN Qingyu REN Min ZHU Guoyi |
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| Affiliation: | GAO Xiuxia1,WU Zhen1,ZHANG Weina2,CHEN Qingyu3,REN Min4,ZHU Guoyi4 (1.School of Chemistry , Environmental Engineering,Changchun University of Science , Technology,Changchun 130022,2. School of Chemistry,Jilin Normal University,Siping 136000,3. Beijing Insitute of Techology,Beijing 100081,4.State Key Laboratory of Electroanalytical Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022) |
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| Abstract: | Resently,the studies of silica aerogels have been more and more extensive.Used as the lightest solid material,silica aerogels have many unique properties and the best property in thermal insulation. But the key of studying is the preparation con-ditions. In this paper,the orthogonal experiment had been designed by using four factors and three levels to study their optimal preparation conditions at ambient pressure,and the influences of the four factors TEOS,water,ethanol,pH values to silica aerogels propert... |
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| Keywords: | silica aerogels sol-gel method orthogonal experiment |
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