METHOD FOR PREPARING HIGH-INSULATION AEROGEL-IMPREGNATED FIBER

摘要

PURPOSE: A manufacturing method of high insulation aerogel impregnated fiber is provided to offer aerogel non-woven fabric/fiber of ambient drying type having low thermal conductivity, soundproof property and improved energy-saving efficiency. CONSTITUTION: The manufacturing method of high insulation aerogel impregnated fiber is as follows. Silica sol mixes alcoxysilane and isopropyl alcohol, and then proceeds hydrolysis by adding an acid solution to the mixed solution. A polymerization reaction of the silica sol is carried out by adding a small quantity of basic solution. The silica sol is impregnated in the fiber. The fiber is aged and solvent-substituted under a polar solvent. The aerogel impregnated fiber reforms the surface and proceeds the ambient drying process.