Glass bead for engineering-grade reflective film and preparation method thereof

Abstract

The invention discloses a glass bead for an engineering-grade reflective film and a preparation method thereof. The glass bead is composed of the following components by weight: 41-53 parts of natural sea rock, 37-49 parts of diopside, 22-33 parts of tungsten tailings, 29-43 parts of magnesite, 21-32 parts of nacrite, 7-14 parts of boron phosphate, 5-10 parts of calcium hexaboride, 4-7 parts of sorbitan monopalmitate, 6-9 parts of triethanolamine polyoxyethylene dodecyl mono phosphate, 5-10 parts of cation hydroxy silicone oil, 3-6 parts of polyoxyethylene lanolin ether and 12-14 parts of additive. The glass beam is provided with the natural sea roc, the tungsten tailings and the magnesite which match the boron phosphate and the calcium hexaboride. Not only can thermal stability and mechanical strength of the glass beam be improved, but also wear resistance, high-temperature resistance, aging resistance and solvent resistance can be improved. The prepared glass beam has an excellent comprehensive performance and can be widely applied for the engineering-grade reflective film.

Description

Technical field [0001] The invention relates to a glass microbead for engineering-grade reflective film and a preparation method thereof, and belongs to the field of glass microbead manufacturing. Background technique [0002] Reflective film is a film with a special structure that uses optical principles to retroreflect light back to the light source. Reflective film is a novel reflective material formed by combining the reflective layer formed by glass beads with PVC, PU, ​​PET, acrylic, PC and other polymer materials by using a special process. Among them, glass beads are an important raw material for the manufacture of reflective films, but in actual production, the surface is in a "hydrophilic and oleophobic" polar state, resulting in compatibility and affinity with the polymer matrix. Inferior, the obvious interface effect with the polymer matrix causes the glass beads to agglomerate, which affects the performance of the reflective film and causes the quality to decline. I...

AI Technical Summary

Problems solved by technology

Among them, glass microspheres are an important raw material for the manufacture of reflective films, but in actual production, due to the polar state of "hydrophilic and oleophobic" on the surface, the compatibility and affinity between them and the polymer matrix Poor, the obvious interface effect with the polymer matrix makes the glass beads agglomerate and other phenomena, which affects the performance of the reflective film and leads to a decline in quality. In addition, the existing glass beads on the market still have the disadvantage of poor overall performance , unable to meet the requirements for the use of engineering-grade reflective film

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