Method for producing a high temperature resistant, heat insulating, and fireproof composite glue composed of an aerogel and an inorganic fiber and the application of the related product

A method for producing a composite glue composed of a hydrophilic aerogel, an inorganic fiber, and an inorganic adhesive, comprising:

• mixing step:
• mixing a siloxane compound and a mixing solvent to form a mixing solution;
• hydrolysis step:
• adding an acid catalyst into the mixing solution to perform a hydrolysis reaction;
• condensation step:
• adding a basic catalyst into the mixing solution to perform a condensation reaction;
• wherein in the condensation reaction process, a hydrophobic dispersing solvent is added therein, and the mixing solution is mixed at a high speed to form an aerogel wet gel of a uniform structure;
• or
• wherein in the condensation reaction process, a hydrophobic dispersing solvent is added therein, and the mixing solution is mixed at a high speed to form an aerogel wet gel of a uniform structure, followed by crushing the aerogel wet gel under a large-amount hydrophobic solvent environment in order to crush the aerogel wet gel into particles of a particle size ranging from several hundreds of micrometers to several tenths of millimeters and being dispersed into the hydrophobic solvent;
• aging step:
• performing aging on the aerogel wet gel under a specific temperature in order to further stabilize the aerogel wet gel;
• high-temperature solvent replacement step:
• performing replacement of the hydrophobic dispensing solvent and a solvent in the aerogel wet gel under a condition of room pressure and high temperature until the aerogel wet gel becomes bluish transparent or completely transparent;
• evaporation and drying step:
• using high-temperature distillation to remove or using a filter to remove the hydrophobic solvent, followed by performing high-temperature drying on the aerogel wet gel in order to obtain hydrophilic aerogel particles having a high porosity and a high specific surface area;
• and
• composition step:
• using a mixing machine to mix the dried hydrophilic aerogel particles with an inorganic fiber with each other in order to form a uniformly dispersed inorganic mixture, followed by adding an inorganic adhesive solution into the inorganic mixture in order to allow the aerogel particles, the inorganic fiber and the inorganic adhesive solution to interact with each other to form a hydrophilic composite glue with a viscosity and composed of the aerogel and the inorganic fiber, following by adding a water, a thickener, a dispersant agent, or an aerogel powder to adjust the viscosity of the composite glue.