Aerogel modified impregnation liquid, preparation method thereof and prepared modified aerogel

Abstract

The invention provides aerogel modified impregnation liquid, a preparation method thereof and prepared modified aerogel, and belongs to the technical field of aerogel. Putting the fiber felt coiled material into a gel tank, adding the aerogel modified dipping solution, after the glue solution is conveyed, starting a glue solution circulating device and an ultrasonic device to enable the glue solution to fully enter the fiber felt, after circulation is finished for 10-20 minutes, closing the glue solution circulating device and the ultrasonic device, waiting for the glue solution to be gelled, and recycling the residual glue solution in a pipeline and the gel tank; aging the wet gel at normal temperature for 12-24 hours, and drying to obtain the modified aerogel. According to the invention, the prepared aerogel modified impregnation liquid is conveyed into the gel tank filled with the fibrofelt coiled material, and the prepared modified aerogel is low in cost, good in mechanical property, low in heat conductivity, good in heat insulation and heat preservation effect, light in weight and high in hydrophobicity.

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