Preparation Method Of Hydrophobic Hollow Glass Micro Bead And Hydrophobic Hollow Glass Micro Bead Thereof

A preparation method of hydrophobic hollow glass microsphere comprising:

• preparing the borate solution, mixing the solution with sodium silicate (water glass) and forming the colloid;
• then spray drying the colloid and superficial treatment to the semi-product;
• characterized in that it specifically comprising the following steps:
• mixing the boric acid, potassium hydroxide, lithium hydroxide, calcium hydroxide with water in a mass ratio of 1:0.1˜0.3:0.05˜0.2:0.005˜0.01:5˜8 to dissolve the said solution into the state of clear and transparent completely, getting auxiliary solution;
• and adding the auxiliary solution into the stirred sodium silicate (water glass) by means of spraying to form colloid, the usage of the quality of sodium silicate (water glass) is 10-20 times of boric acids;
• and then transporting the colloid to spray drying apparatus to proceed spray drying under the atmospheric pressure to obtain the semi-product of hollow glass microsphere;
• at last, superficial hydrophobic treating the organic silicon water repellent on the surface of the hollow glass microsphere to obtain the said hydrophobic hollow glass microsphere.