Surface modification method for hollow glass tiny bead and uses thereof

Abstract

The invention provides a modification method of a hollow glass microballoon surface. Titanium dioxide coating layers are uniformly clad on the hollow glass microballoon surface by adopting a titanium salt back dripping method, so that the heat insulating property of the hollow glass microballoon can be improved obviously, and the production process is simplified. The method can fully bring into play the characteristics of the hollow glass microballoon and titanium dioxide in performance, make the best of the two and lead to synergistic effect. Therefore, the filling material of the hollow glass microballoon, after being modified, has diverse filling functions and the advantages of heat resistance, heat reflection, photocatalysis etc., so as to meet different needs. The invention also provides the application of the method in the manufacture of head insulating coatings.

Description

technical field

[0001] The invention relates to a method for surface modification of heat-insulating fillers, in particular to a method for surface modification of hollow glass microspheres, and the application of the method in the field of preparing heat-insulating coatings. Background technique

[0002] Hollow glass microsphere is a thin-walled, sealed glass spherical shell, because its interior is vacuum or N 2 , CO 2 Therefore, hollow microspheres have the characteristics of light weight, high strength, sound insulation, heat insulation, and insulation, and have gradually become important fillers in the fields of building materials, aerospace, electronics, coal, and metallurgy. In the United States, many manufacturers are using hollow glass microspheres to prepare artificial marble, which is light in weight, excellent in impact resistance, and low in cost; in the field of functional plastics and functional coatings, hollow glass microspheres are added to thermosetting r...

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