| 改性SiO2气凝胶制备及其在ICF实验中的应用 |
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| 引用本文： | 任洪波,万小波,张林,袁光辉,修鹏,张勇.改性SiO2气凝胶制备及其在ICF实验中的应用[J].强激光与粒子束,2006,18(8):1307-1310. |
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| 作者姓名： | 任洪波 万小波 张林 袁光辉 修鹏 张勇 |
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| 作者单位： | 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900 |
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| 基金项目： | 国家高技术研究发展计划(863计划);中国物理研究院科研项目 |
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| 摘 要： | 以正硅酸乙酯（TEOS）为前驱体，采用酸碱两步催化法制备了SiO2醇凝胶。醇凝胶分别经过TEOS母液、甲基三乙氧基硅烷（MTEOS）处理后，以六甲基二硅胺烷（HMDSA）为疏水改性试剂，制备了改性SiO2醇凝胶，醇凝胶经溶剂交换后以CO2作为干燥介质，采用超临界干燥法制备了密度在30～100 mg/cm3的SiO2气凝胶。用傅里叶变换红外光谱仪（FTIR）对疏水性SiO2气凝胶进行了研究。研究结果表明,经过改性的气凝胶在潮湿环境中具有极好的尺寸稳定性和疏水性。采用精密车床加工得到了满足惯性约束聚变（ICF）物理试验要求的微柱。
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| 关 键 词： | ICF 二氧化硅 气凝胶 疏水 改性 |
| 文章编号： | 1001-4322(2006)08-1307-04 |
| 收稿时间： | 2005-10-27 |
| 修稿时间： | 2006-05-17 |
Preparation of modified silica aerogel and its appilication in inertial confinement fusion (ICF) experiment |
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| REN Hong-bo,WAN Xiao-bo,ZHANG Lin,YUAN Guang-hui,XIU Peng,ZHANG Yong.Preparation of modified silica aerogel and its appilication in inertial confinement fusion (ICF) experiment[J].High Power Laser and Particle Beams,2006,18(8):1307-1310. |
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| Authors: | REN Hong-bo WAN Xiao-bo ZHANG Lin YUAN Guang-hui XIU Peng ZHANG Yong |
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| Institution: | Research Center of Laser Fusion, CAEP, P.O.Box 919-987, Mianyang 621900, China |
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| Abstract: | The silica alco-gel was obtained by the 2-step acid-base catalyzed TEOS.Aging in a solution of methyltrimethoxylsilane and trimethylating Si-OH groups increased the strength and stiffness of the wet gel by hexamethyldisilazane(HMDSA) on the surface of silica matrix.The modified silica aerogel was obtainted by CO_2 supercritical drying method.The bulk densities of aerogels were between 30~100 mg/cm~3.FTIR and some other experiment methods were used to investigate the structure and hydrophobic properties.The experiment results showed that the aerogel possessed perfect size-stability and hydrophobic properties.The aerogel micro-cylinder for ICF targets was manufactured by lathe machine. |
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| Keywords: | ICF Silica Aerogel Hydrophobic Modification |
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