| abstract |
The invention relates to a method for preparing an aerogel / composite non-woven fire insulation material, which comprises the following steps: providing a monoalkane oxide and a silicone rubber for mixing, adding a silane coupling agent to continue stirring, and then dripping an acid The catalyst undergoes a hydrolysis reaction; subsequently, an aqueous alkali catalyst (or a non-aqueous alkali catalyst) organic solution is added to perform a condensation reaction to form a silicone-silica aerogel-silicon coupling agent condensation solution; the aforementioned condensation solution is impregnated into the compound Non-woven blanket, which is matured and dried naturally to form a soft hydrophobic (or hydrophilic) aerogel / composite non-woven fire insulation material, which can simultaneously produce a large number of different hydrophilic and hydrophobic surface properties and softness. Aerogel / composite non-woven materials, used as heat insulation materials for industrial high-temperature equipment or indoor heat insulation and fire-resistant panels for building structures. |