Fluorescence detection method of zirconia content in TFT glass

A technology of fluorescence detection and zirconia, which is applied in fluorescence/phosphorescence, measuring devices, preparation of test samples, etc., can solve the problem of loss of monitoring significance, particle size effect, sample dispersion uniformity, influence of test result stability and accuracy, test result Accuracy and test precision decrease, etc., to eliminate mineral effect and particle size effect, increase zirconia content, and expand the detection range

Inactive Publication Date: 2016-06-08
ZHENGZHOU XUFEI OPTOELECTRONICS TECH +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of the matrix effect of the glass frit, the traditional fluorescence analysis method of zirconia in glass uses a large proportion of flux. Usually, the mass ratio of glass powder to flux is 1:10. In such a high dilution ratio, when If the zirconia content in the glass is lower than a certain level, further dilution of the zirconia content in the molten glass sheet will be close to or lower than the detectio...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The fluorescence detection steps of the zirconia content in the TFT glass of Example 1 of the present invention are as follows:

[0029] (1), take 25 grams of broken glass samples (from the production line of Dongxu Optoelectronics Technology Co., Ltd., with a zirconia content of 0.0040% by mass), place them in a vibrating mill made of tungsten carbide, and add 8 drops of absolute ethanol dropwise As a dispersant, vibrate for 30 seconds, grind the sample through a 400-mesh sieve and dry to obtain glass powder;

[0030] (2), accurately weigh 3.000g of glass powder and 3.000g of mixed flux (the mass ratio of lithium tetraborate and lithium metaborate in the flux is 2:1), place in an agate mortar and mix well;

[0031] (3), transfer 6g of the mixture obtained in step (2) into a platinum crucible, add dropwise 10 drops of 0.2g / mL ammonium iodide solution as a release agent, and melt it in an automatic melting machine at 1200°C After 15 minutes, after the fusion program is ...

Embodiment 2

[0035] The test method of Example 2 is the same as that of Example 1, except that the amount of flux added is 1.500 grams, and the mass ratio of lithium tetraborate and lithium metaborate in the flux is 1:1. The test results are shown in Table 1.

Embodiment 3

[0037] The test method of Example 3 is the same as that of Example 1, except that the amount of flux added is 6.000 grams, and the mass ratio of lithium tetraborate and lithium metaborate in the flux is 5:1. The test results are shown in Table 1.

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Abstract

The invention discloses a fluorescence detection method of the zirconia content in TFT glass. The method comprises: a, finely grinding a glass sample to obtain glass powder; b, mixing the glass powder obtained from the step a with a fusing agent and a releasing agent for fusion sample preparation to obtain a fused glass sheet, wherein the mass ratio of the glass powder to the fusing agent to the releasing agent is 1: (0.5-2): (0.01-0.1), and the fusing agent is a mixture of lithium tetraborate and lithium metaborate with the mass ratio being (1-5): 1; and c, performing fluorescence detection of the fused glass sheet obtained from the step b to obtain the zirconia content in the glass sample. According to the method, the zirconia content in glass can be quickly, accurately, and efficiently measured.

Description

technical field [0001] The invention relates to the field of glass detection, in particular to a fluorescence detection method for zirconia content in TFT glass. Background technique [0002] Since a variety of glass products have been widely used in various fields of production and life, the characteristics and production processes of glass used in different fields are very different, especially for TFT glass used in high-end display technology, which has great impact on production equipment and The production process is very demanding, and the process control capability of the glass melting furnace has the greatest impact on product quality and product yield. The brick body of the glass melting furnace is usually a refractory material containing a high content of zirconia. The refractory material will be eroded by the molten glass at high temperature. Most of the eroded zirconia will be melted and dispersed into the molten glass, or part of it will be due to Its high dens...

Claims

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Application Information

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IPC IPC(8): G01N21/64G01N1/28
CPCG01N21/643G01N1/286G01N2001/2866
Inventor 刘文渊付冬伟黄志军
Owner ZHENGZHOU XUFEI OPTOELECTRONICS TECH
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