公开(公告)号：US20060178496A1

公开(公告)日：2006-08-10

申请号：US11050848

申请日：2005-02-07

Applicant: Kun-Cheng Lin ,  Chia-Jen Liu ,  Jing-Lyang Jeng

Inventor： Kun-Cheng Lin ,  Chia-Jen Liu ,  Jing-Lyang Jeng

IPC: C08G77/04

CPC classification number: C01B33/1585

Abstract: The present invention discloses a high-temperature stable, low density and transparent silica aerogel prepared by carrying out a sol-gel process of a mixture containing a main precursor of inorganic siloxane and a high-temperature stable precursor to form a wet gel, wherein the high-temperature stable precursor and the main precursor undergo covalent-bond crosslinking; aging and supercritical drying the wet gel to form a low density, tough, hydrophobic silica aerogel of a porous network structure. The hydrophobation of the aerogel of the present invention prevails after several times of heating at 500° C., and the structure of the aerogel will not collapse caused by moisture.

Abstract translation: 本发明公开了一种高温稳定，低密度和透明的二氧化硅气凝胶，其通过进行含有无机硅氧烷的主要前体和高温稳定前体的混合物的溶胶 - 凝胶法制备，形成湿凝胶，其中 高温稳定前体和主要前体经历共价键交联; 老化和超临界干燥湿凝胶以形成多孔网状结构的低密度，坚韧，疏水的二氧化硅气凝胶。 本发明的气凝胶的疏水化在500℃下加热几次之后，气溶胶的结构不会由水分引起塌陷。