Method for producing ceramic tiles by utilizing waste liquid crystal display glass

A liquid crystal display and display technology, which is applied in the production and application of ceramic materials, household appliances, etc., can solve the problems of limited processing capacity of foam glass, and achieve the effects of good chemical stability, low water absorption and good structural strength

Inactive Publication Date: 2010-06-02
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of waste liquid crystal di

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1:

[0016] 1) First, peel off the glass in the discarded liquid crystal display from the display, crush it and grind it through a 20-mesh sieve for use; then, dry the kaolin and grind it to 20 mesh for use;

[0017] 2) Take 30% of the broken ball milled waste glass and 70% of kaolin according to the mass fraction and mix them into a ball mill tank, then add 2% of the mixture mass of distilled water, ball mill and mix uniformly to form a batch;

[0018] 3) Put the batch material into a 50mm(L)x40mm(W)x8mm(H) grinding tool, dry-press it into a ceramic tile body under a pressure of 5MPa, and then place the formed ceramic tile body at room temperature for 24h Then put it in an oven and bake at 110°C for 24 hours, then put the baked sample in the furnace, and sinter according to the following process:

[0019] In the preheating stage, the temperature rises from room temperature to 110°C at a heating rate of 3°C / min;

[0020] In the heating stage, the temperature is increased...

Example Embodiment

[0023] Example 2:

[0024] 1) First, peel off the glass in the discarded liquid crystal display from the display, crush it and grind it through a 20-mesh sieve for use; then, dry the kaolin and grind it to 20 mesh for use;

[0025] 2) Take 10% of the broken ball milled waste glass and 90% of the kaolin according to the mass fraction and mix them into the ball mill tank, then add 1% of the mixture mass of distilled water, ball mill and mix uniformly to form a batch;

[0026] 3) Put the batch material into a 50mm(L)x40mm(W)x8mm(H) grinding tool, dry-press it into a ceramic tile body under a pressure of 5MPa, and then place the formed ceramic tile body at room temperature for 24h Then put it in an oven and bake at 130°C for 24h, then put the baked sample in the furnace, and sinter according to the following process:

[0027] In the preheating stage, the temperature rises from room temperature to 130°C at a heating rate of 5°C / min;

[0028] In the heating stage, the temperature is increase...

Example Embodiment

[0031] Example 3:

[0032] 1) First, peel off the glass in the discarded liquid crystal display from the display, crush it and grind it through a 20-mesh sieve for use; then, dry the kaolin and grind it to 20 mesh for use;

[0033] 2) Take 40% of the broken ball-milled waste glass and 60% of kaolin according to the mass fraction and mix them into the ball mill tank, then add 0.5% distilled water of the mixture mass, and form a batch after the ball mill is evenly mixed;

[0034] 3) Put the batch material into a 50mm(L)x40mm(W)x8mm(H) grinding tool, dry-press it into a ceramic tile body under a pressure of 5MPa, and then place the formed ceramic tile body at room temperature for 24h Then put it in the oven and bake at 150℃ for 24h, then put the baked sample in the furnace, and sinter according to the following process:

[0035] In the preheating stage, the temperature rises from room temperature to 120°C at a heating rate of 4°C / min;

[0036] In the heating stage, the temperature is incr...

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Abstract

The invention provides a method for producing ceramic tiles by utilizing waste liquid crystal display (LCD) glass. The method comprises: breaking and ball-milling waste LCD glass and kaolin to 20 mesh; putting the waste LCD glass mixed with kaolin after breaking and ball-milling into a ball-milling tank, performing ball-milling and mixing and obtaining matched material; putting the matched material into a grinding tool, dryly pressing the matched material to be ceramic tile blank and then baking the blank; and putting baked samples into a furnace and obtaining the ceramic tiles through a preheating stage, a heating a stage and a heat-insulation annealing stage. The method adopts TFT-LCD waste glass as display material of any waste electrical appliances, and the kaolin can also be replaced by recycled ceramic products. The ceramic tiles obtained by the preparation method have the advantages of good structural strength, low water absorption rate, high hardness, good chemical stability, high use temperature and wide application range. The method for producing ceramic tiles not only changes waste material into things of value, but also protects environment.

Description

technical field [0001] The invention relates to a method for recycling waste liquid crystal display (TFT-LCD) glass, in particular to a method for producing ceramic tiles by using waste liquid crystal display glass. Background technique [0002] my country is a big producer and consumer of household electrical appliances. At present, my country has entered the peak period of TV and computer replacement, and the annual elimination will reach more than 6 million units. Liquid crystal display has attracted people's attention and use because of its advantages such as easy colorization, no electromagnetic radiation, long life, and passive display. Moreover, its picture color reproduction effect is better than that of CRT; the electromagnetic radiation is very small, harmless to human body safety, and has good confidentiality; there is no glare, and the eyes will not feel tired and dry; the display information is large, etc. Therefore, the replacement of CRT by liquid crystal dis...

Claims

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Application Information

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IPC IPC(8): C04B33/00C04B33/132
CPCY02P40/60
Inventor 高淑雅郭晓琛郭宏伟余明光古先文
Owner SHAANXI UNIV OF SCI & TECH
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