Glass bead for outdoor advertisement reflective membrane and preparation method thereof

Abstract

The invention discloses glass beads for outdoor advertisement reflective membranes and a preparation method thereof. The glass beads are prepared from following raw materials by weight: 27-41 Yixing clay, 19-33 shell powder, 23-34 lamprophyllite, 18-30 cement slurry, 24-38 sunstone, 22-34 kaliophilite, 15-25 nahcolite, 5-10 1,3-butylene glycol, 4-7 potassiam polyoxyethylene laurylether phosphate, 6-8 nekal, 3-5 cocoamidopropyl betaine, 2-4 fatty methyl ester ethoxylates, and 6-9 additive. Yixing clay, lamprophyllite, cement slurry, sunstone, kaliophilite or the like are added to the raw materials, and the raw materials interact with each other, so the mechanical strength of the glass beads can be improved, and also the weatherability and endurance of the glass beads are substantially improved. The prepared glass beads have the good optical performance, are high in mechanical strength and long in service life, exhibit excellent weatherability and endurance, and fully meet use requirements of outdoor advertisement reflective membranes.

Description

technical field [0001] The invention relates to a glass microsphere for an outdoor advertising reflective film and a preparation method thereof, belonging to the field of glass microsphere manufacture. 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 polymer materials such as PVC, PU, ​​PET, acrylic, and PC by using a special process. 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...

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 glass beads on the existing market still have poor weather resistance and poor durability. The disadvantages lead to a greatly shortened service life and cannot meet the requirements for the use of outdoor advertising reflective film

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