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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 display glass to prepare foam glass is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) First, the glass in the discarded liquid crystal display is peeled off from the display, crushed and milled and passed through a 20-mesh sieve for use; then, the kaolin is dried and crushed and ball-milled to 20 mesh for use;

[0017] 2) According to the mass fraction, 30% of the waste glass after crushing and ball milling and 70% of kaolin are mixed into a ball milling tank, and then distilled water with a mass of 2% of the mixture is added, and the ball milling is evenly mixed to form a batch;

[0018] 3) Put the batch material into a 50mm(L)x40mm(W)x8mm(H) abrasive tool, dry press it into a ceramic tile body under a pressure of 5MPa, and then place the shaped ceramic tile body at room temperature for 24 hours Then put it into the oven, bake at 110°C for 24 hours, put the baked sample into 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 rate of 3°C / min;

[0020]...

Embodiment 2

[0024] 1) First, the glass in the discarded liquid crystal display is peeled off from the display, crushed and milled and passed through a 20-mesh sieve for use; then, the kaolin is dried and crushed and ball-milled to 20 mesh for use;

[0025] 2) According to the mass fraction, 10% of waste glass after crushing and ball milling and 90% of kaolin are mixed into a ball milling tank, and then distilled water with a mass of 1% of the mixture is added, and the ball milling is evenly mixed to form a batch;

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

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

[002...

Embodiment 3

[0032] 1) First, the glass in the discarded liquid crystal display is peeled off from the display, crushed and milled and passed through a 20-mesh sieve for use; then, the kaolin is dried and crushed and ball-milled to 20 mesh for use;

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

[0034] 3) Put the batch material into a 50mm(L)x40mm(W)x8mm(H) abrasive tool, dry press it into a ceramic tile body under a pressure of 5MPa, and then place the shaped ceramic tile body at room temperature for 24 hours Then put it into the oven, bake at 150°C for 24 hours, then put the baked sample into 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 rate of 4°C / min;

[003...

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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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