公开(公告)号：US20120171488A1

公开(公告)日：2012-07-05

申请号：US13252552

申请日：2011-10-04

Applicant: Jeong-Gu Yeo ,  Eunju Lee ,  Churl-Hee Cho ,  Hyun-seol Park ,  Nam-jo Jeong ,  Chang-Kook Hong ,  Dong-kook Kim

Inventor： Jeong-Gu Yeo ,  Eunju Lee ,  Churl-Hee Cho ,  Hyun-seol Park ,  Nam-jo Jeong ,  Chang-Kook Hong ,  Dong-kook Kim

IPC: D02G3/00 ,  B29C47/00 ,  E04B1/78

CPC classification number: D01D5/003 ,  B01J13/0091 ,  C04B35/6224 ,  C04B35/6264 ,  C04B35/63424 ,  C04B35/63436 ,  C04B35/63444 ,  C04B2235/3201 ,  C04B2235/5264 ,  D01D1/02 ,  D01F6/12 ,  D01F6/16 ,  D01F6/18

Abstract: Disclosed herein is a method for producing a sheet including a silica aerogel, the method including (S1) gelling a water glass solution in a mixture of an alcohol and water to prepare a wet gel, (S2) hydrophobically modifying the surface of the wet gel with a non-polar organic solvent, an organosilane compound and an alcohol, (S3) dissolving the hydrophobically modified silica gel and a polymer in an aprotic organic solvent to prepare an electrospinning solution, and (S4) electrospinning the electrospinning solution to produce a fiber web including a silica aerogel, and a sheet in which a polymer and a silica aerogel coexist in the form of a fiber.

Abstract translation: 本文公开了一种制备包含二氧化硅气凝胶的片材的方法，所述方法包括（S1）将醇和水的混合物中的水玻璃溶液凝胶化以制备湿凝胶，（S2）疏水改性湿凝胶的表面 使用非极性有机溶剂，有机硅烷化合物和醇，（S3）将疏水改性硅胶和聚合物溶解在非质子有机溶剂中以制备静电纺丝溶液，（S4）静电纺丝溶液以制备纤维 纤维网，其包含二氧化硅气凝胶和其中聚合物和二氧化硅气凝胶以纤维形式共存的片材。

公开(公告)号：US20080081014A1

公开(公告)日：2008-04-03

申请号：US11737450

申请日：2007-04-19

Applicant: Yong-Soo AHN ,  Jeong-Gu Yeo ,  Moon-Hee Han ,  Churl-Hee Cho ,  Sharad D. Bhagat ,  Yong-Ha Kim ,  Ho-Sung Park

Inventor： Yong-Soo AHN ,  Jeong-Gu Yeo ,  Moon-Hee Han ,  Churl-Hee Cho ,  Sharad D. Bhagat ,  Yong-Ha Kim ,  Ho-Sung Park

IPC: C01B33/12

CPC classification number: C01B33/1585 ,  C01B33/158

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120025127A1

公开(公告)日：2012-02-02

申请号：US13258225

申请日：2010-06-10

Applicant: Jeong-Gu Yeo ,  Young-Soo Ahn ,  Churl-Hee Cho ,  Jeong Min Hong

Inventor： Jeong-Gu Yeo ,  Young-Soo Ahn ,  Churl-Hee Cho ,  Jeong Min Hong

IPC: E04B1/82 ,  B01J8/00

CPC classification number: C01B33/1585 ,  C01B33/155 ,  C01B33/157 ,  Y02P20/544

Abstract: The present invention relates to a method of manufacturing a mat containing aerogel and to a mat manufactured using this method. A method of manufacturing a mat containing silica aerogel according to an aspect of the invention includes: (S1) producing a wet gel by mixing water glass and alcohol in a reactor; (S2) modifying a surface of the wet gel by adding an organic silane compound and an organic solvent to the reactor and mixing; (S3) separating a upper liquid from a solution in the reactor and impregnating a fibrous matrix with the upper liquid; and (S4) drying the fibrous matrix impregnated with the upper liquid. According to an aspect of the invention, a mat containing silica aerogel can be manufactured using only water glass as raw material, even when applying the drying process in an ambient environment, without using expensive materials or supercritical apparatus.

Abstract translation: 本发明涉及一种制造含有气凝胶的垫的方法和使用该方法制造的垫。 根据本发明的一个方面的制备含有二氧化硅气凝胶的垫的方法包括：（S1）通过在反应器中混合水玻璃和醇来生产湿凝胶; （S2）通过向反应器中加入有机硅烷化合物和有机溶剂并混合来改性湿凝胶的表面; （S3）将上液体与反应器中的溶液分离，并用上液体浸渍纤维基质; 和（S4）干燥浸渍有上层液体的纤维基质。 根据本发明的一个方面，即使在不使用昂贵的材料或超临界设备的情况下在周围环境中进行干燥处理，也可以仅使用水玻璃作为原料来制造含有二氧化硅气凝胶的垫。