A method for producing a composite glue composed of a hydrophobic aerogel, comprising:
- mixing step:
- mixing an alkoxysilane compound, an olefin alkoxysilane compound, R-silicone oligo molecules or any mixture thereof with 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, adding a dispersing solvent therein, and mixing the mixing solution at a high speed to allow the mixing solution to form an aerogel wet gel of a uniform structure and having a particle size ranging from several hundreds of nanometers to several hundreds of micrometers;
- or wherein in the condensation reaction process, adding a dispersing solvent therein to allow the mixing solution to form an aerogel wet gel of a uniform structure, followed by crushing the aerogel wet gel under a large-amount dispensing 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 dispensing solvent;
- aging step:
- performing aging on the aerogel wet gel under a specific temperature in order to stabilize the aerogel wet gel;
- high-temperature pulse washing step:
- using a pulse acting force of a high temperature water under a normal pressure to replace an organic component or solvent in the aerogel wet gel until the aerogel wet gel indicates a milky color;
- drying step:
- using high-temperature distillation to remove or using a filter to remove the solvent, followed by performing high-temperature drying on the aerogel wet gel in order to obtain hydrophobic aerogel wet gel particles having a high porosity and a high specific surface area;
- and
- composition step:
- using a mixing machine to mix the hydrophobic aerogel wet gel particles with an inorganic fiber to interact with each other in order to form a uniformly dispersed inorganic mixture, followed by adding an inorganic binder solution into the inorganic mixture in order to allow the aerogel particles, the inorganic fiber and the inorganic binder solution to interact with each other to form a composite glue composed of the aerogel with a viscosity.