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Beads are mainly used to manufacture engineering grade reflective film for traffic management signs

by:Spring Glass     2021-02-21
Beads are mainly used to manufacture engineering-grade reflective film for traffic management signs 2019-04-12 High refractive index glass beads containing TIOZ and BaO are widely used. The production method is to remelt glass powders of a certain particle size through high-temperature air, and then use surface tension to form microbeads. High pressure air or high temperature gas can also be used to atomize molten glass into beads. ①High refractive index glass beads: Beads are mainly used to make engineering-grade reflective films for traffic management signs. The particle size range of glass beads is 37-90 mm. In addition, since light travels back and forth in the glass beads, the glass beads are required to absorb as little light as possible and have high transparency. ② Quasi-high refractive index glass beads: the refractive index is 1.9 to 2.0. The glass composition and production method are similar to those of high refractive index glass beads, but the content of TIOZ in the glass composition decreases, while the content of BaO and 5102 increases.
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