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1. 发明申请

US20080081014A1 RAPID PREPARATION PROCESS OF AEROGEL 审中-公开
标题翻译：航空快速准备过程
公开(公告)号：US20080081014A1
公开(公告)日：2008-04-03
申请号：US11737450
申请日：2007-04-19
申请人： Yong-Soo AHN , Jeong-Gu Yeo , Moon-Hee Han , Churl-Hee Cho , Sharad D. Bhagat , Yong-Ha Kim , Ho-Sung Park
发明人： Yong-Soo AHN , Jeong-Gu Yeo , Moon-Hee Han , Churl-Hee Cho , Sharad D. Bhagat , Yong-Ha Kim , Ho-Sung Park
IPC分类号： C01B33/12
CPC分类号： C01B33/1585 , C01B33/158
摘要： Disclosed herein is a rapid preparation process of aerogel. More specifically, the present invention relates to a rapid preparation process of aerogel which enables a considerable reduction in preparation time and preparation costs via simultaneous treatment of solvent exchange and surface-modification of hydrophilic-to-hydrophobic transition.The rapid preparation process comprises mixing a cation exchange resin with sodium silicate (water glass) as a starting material, and removing the sodium ion from the sodium silicate, to subject the sodium silicate to ion exchange; adding a base catalyst and an organosilane compound to the sodium silicate to subject the sodium silicate to gelation; aging the gellized silica gel at room temperature for 2 to 4 hours to discharge water from the silica gel and to modify the surface of the silica gel into hydrophobicity; and drying the hydrophobic silica gel at atmospheric pressure for 18 to 27 hours.
摘要翻译：本文公开了气凝胶的快速制备方法。更具体地说，本发明涉及一种气凝胶的快速制备方法，其通过同时处理亲水 - 疏水过渡的溶剂交换和表面改性，能够显着降低制备时间和制备成本。快速制备方法包括将阳离子交换树脂与硅酸钠（水玻璃）作为起始原料混合，并从硅酸钠中除去钠离子，使硅酸钠进行离子交换; 向硅酸钠中加入碱催化剂和有机硅烷化合物以使硅酸钠发生凝胶化; 将胶凝硅胶在室温下老化2至4小时，以从硅胶中排出水，并将硅胶表面改性为疏水性; 并在大气压下干燥疏水性硅胶18至27小时。

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