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High-refractive-index glass micro-beads for reflective film and preparation method thereof

A glass microbead, high refractive index technology, used in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of low refractive index, poor reflection effect, unstable quality and performance, etc.

Inactive Publication Date: 2015-10-14
HEFEI DINGLIANG OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the quality and performance of glass microspheres produced by Chinese manufacturers are unstable, the refractive index is low, and the reflective effect is poor. Compared with foreign glass microspheres, there is still a certain gap.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A kind of high refractive index glass microspheres for reflective film, which is made of the following raw materials in weight (kg): 30 boronite, 23 lapis lazuli, 6 potassium tartrate, 10 molybdenum oxide, 31 fisheye stone, 26 titanite , Barium carbonate 14, Sodium bisulfite 5, Petroleum coke powder 7, Waste molding sand 25, Bauxite 18, Yuanming powder 5, Additive 9;

[0016] The additive is mixed from the following raw materials by weight (kg): bismuth oxychloride 7, cerium phosphate 11, cobalt chromate 6, barium peroxide 4, sodium selenate 5, indium tin oxide 2.5, yttrium oxalate 4.5, disilicide Molybdenum 10, strontium titanate 6.

[0017] A preparation method of high refractive index glass beads for reflective film, comprising the following steps:

[0018] (1) Take sialzite, lapis lazuli, fish eye stone and titanite, mix evenly, calcinate at 720-840°C for 1-2h, air cool to room temperature, pulverize, pass through a 50-100 mesh sieve, add 7-9 times the...

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Abstract

The invention discloses a high-refractive-index glass micro-beads for a reflective film and a preparation method thereof, wherein the glass micro-beads are prepared from the following raw materials in parts by weight: 27-34 parts of datholite, 16-29 parts of celestine, 5-8 parts of potassium tartrate, 8-12 parts of molybdenum oxide, 23-37 parts of apophyllite, 18-32 parts of titanaugite, 12-18 parts of barium carbonate, 4-7 parts of sodium hydrogen sulfite, 6-9 parts of a petroleum coke powder, 20-30 parts of waste molding sand, 14-22 parts of laterite, 4-6 parts of sodium sulphate anhydrous, and 7-10 parts of an additive. With datholite, celestine, apophyllite, titanaugite and waste molding sand as the main raw materials, and with addition of a right amount of molybdenum oxide, potassium tartrate, barium carbonate and other raw materials, the prepared glass micro-beads also have relatively high refractive index reaching 1.95 or more while having excellent mechanical properties and excellent aging resistance, and can be widely used in preparation of the reflective film.

Description

technical field [0001] The invention relates to a high-refractive-index glass bead for a reflective film and a preparation method thereof, belonging to the field of glass bead manufacturing. Background technique [0002] Glass beads refer to solid or hollow glass beads with a diameter of several microns to hundreds of microns, which are divided into two types: colorless and colored. Those with a diameter of 0.8mm or more are called fine beads; those with a diameter of less than 0.8mm are called microbeads. Glass beads are a new type of silicate material, which are widely used because of their characteristics of transparency, adjustable refractive index, directional retroreflection, smooth surface, good fluidity, electrical insulation, stable chemical properties, heat resistance and high mechanical strength. Applied to reflective film. [0003] The reflective film is based on the principle of retro-reflective glass beads with high refractive index. It can reflect the dista...

Claims

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Application Information

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IPC IPC(8): C03C12/02C03B19/10
Inventor 范春平
Owner HEFEI DINGLIANG OPTICAL TECH
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