Analysis on Filler’s Modification to the Property of Reflective Thermal Insulation Coating

Abstract:

Acrylic coating containing alkaline earth metallic carbonates material and single, twocomponent polyurethane coating are made out. Three functional fillers——glass microbead, ceramic microbead and titanium dioxide's modification effect on the above two emulsion coatings' properties of reflective heatinsulation is systematically studied. The results of experiments indicate that the modification effect on acrylic coating is optimal when the dosage of glass microbead and ceramic microbead is respectively 8% and 10%. In addition, the absorptivity of polyurethane coating can be reduced about 38% through compounding three kinds of microbeads. Functional filler's modification effect on polyurethane coating is obviously better than that of acrylic coating.

Key words:acryli coating; polyurethane coating; filler; reflective thermal insulation; micro bead