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Cesium-rubidium-potassium monolithic flameproof glass and preparation method

A technology of fire-resistant glass, cesium-rubidium-potassium, which is applied in the field of cesium-rubidium-potassium single-piece fireproof glass and its preparation, to achieve the effects of strengthening various properties, enhancing the surface structure, and lowering the price

Active Publication Date: 2012-06-20
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fire resistance of the glass produced by this method has reached the limit, and the fire resistance of the glass can only be slightly improved by changing the temperature system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Ingredients by weight

[0035] (1) Main molten salt

[0036] 86 parts of potassium nitrate

[0037] Cesium nitrate 2 parts

[0038] Rubidium nitrate 0.1 part

[0039] (2) Additives

[0040] Alumina 5 parts

[0041] Boron oxide 1.4 parts

[0042] Potassium fluoride 1.5 parts

[0043] Potassium hydroxide 1 part

[0044] Potassium carbonate 1 part

[0045] Potassium phosphate 2 parts

[0046] The preparation process is:

[0047] A piece of float glass with a thickness of 6mm and 400mm×200mm is selected, the periphery and surface are finely ground and cleaned, and it is dried in a drying oven for 30 minutes, and the temperature is set at 50°C. Put 172g potassium nitrate, 0.4g rubidium nitrate, 6g potassium fluoride, and 4g potassium hydroxide into molten salt dish 1. Take 172g potassium nitrate, 8g cesium nitrate, 20g alumina, 5.6g boron oxide, 4g potassium carbonate, and phosphoric acid. Put potassium 8g into molten salt dish 2. The dried glass is placed on the surface of th...

Embodiment 2

[0049] Ingredients by weight

[0050] (1) Main molten salt

[0051] 89 parts of potassium nitrate

[0052] Cesium nitrate 2 parts

[0053] Rubidium nitrate 0.3 parts

[0054] (2) Additives

[0055] Alumina 2.7 parts

[0056] Boron oxide 1.5 parts

[0057] Potassium fluoride 2 parts

[0058] 1.5 parts of potassium hydroxide

[0059] Potassium carbonate 0.5 parts

[0060] Potassium phosphate 0.5 parts

[0061] The preparation process is:

[0062] A piece of float glass with a thickness of 8mm and a thickness of 400mm×200mm is selected, the periphery and surface are finely ground and cleaned, and it is dried in a drying oven for 30 minutes, and the temperature is set at 50℃. Put 178g potassium nitrate, 1.2g rubidium nitrate, 8g potassium fluoride, and 6g potassium hydroxide into molten salt dish 1. Take 178g potassium nitrate, 8g cesium nitrate, 10.8g alumina, 6g boron oxide, 2g potassium carbonate, and phosphoric acid. Put 2g of potassium into molten salt dish 2. The dried glass i...

Embodiment 3

[0064] Ingredients by weight

[0065] (1) Main molten salt

[0066] 91 parts of potassium nitrate

[0067] Cesium nitrate 2.5 parts

[0068] Rubidium nitrate 0.2 parts

[0069] (2) Additives

[0070] Alumina 2 parts

[0071] Boron oxide 1 part

[0072] Potassium fluoride 1 part

[0073] Potassium hydroxide 0.8 parts

[0074] Potassium carbonate 0.5 parts

[0075] Potassium phosphate 1 part

[0076] The preparation process is:

[0077] A piece of float glass with a thickness of 10mm and a thickness of 400mm×200mm is selected, the periphery and surface are finely ground and cleaned, and it is placed in a drying oven for 30 minutes and the temperature is set to 50°C. Take 182g of potassium nitrate, 0.8g of rubidium nitrate, 4g of potassium fluoride, and 3.2g of potassium hydroxide into molten salt dish 1. Take 182g of potassium nitrate, 10g of cesium nitrate, 8g of alumina, 4g of boron oxide, 2g of potassium carbonate, and phosphoric acid. Put 4g of potassium into molten salt dish 2...

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Abstract

The invention discloses cesium-rubidium-potassium monolithic flameproof glass and a preparation method. The preparation method comprises a process of carrying out chemical strengthening on glass, wherein chemical strengthening is carried out by placing the glass in molten salts and carrying out ion exchange by a two-step method; in the first step, the molten salt is a mixture of potassium nitrate, rubidium nitrate, potassium fluoride and potassium hydroxide, the exchange temperature is 320-360 DEG C and the heat-insulation time is 2 hours; and in the second step, the molten salt is a mixture of potassium nitrate, cesium nitrate, aluminum oxide, boron fluoride, potassium carbonate and potassium phosphate, the exchange temperature is 500 DEG C and the heat-insulation time is 3 hours. The monolithic flameproof glass product prepared by the method is stable in quality and excellent in fire resistance; in the fire resistance test, the invalidation of the monolithic flameproof glass is caused by final softening and collapsing instead of heat bursting destruction; and the fire resistance time is 120 minutes.

Description

Technical field [0001] The invention relates to a single piece of fireproof glass, in particular to a single piece of cesium rubidium potassium fireproof glass and a preparation method. Background technique [0002] Fire-resistant glass is a special glass that can maintain its integrity and thermal insulation under the specified fire resistance test conditions. Fire-resistant glass is graded according to structure, and can be divided into single-layer fire-resistant glass and composite fire-resistant glass. Composite fireproof glass is a special glass that is composed of two or more layers of glass or a layer of glass and organic materials, and meets the requirements of the corresponding fire resistance class. Composite fireproof glass has the disadvantages of poor light transmission and weather resistance, and its performance is not as good as single-layer fireproof glass. [0003] At present, there are mainly two types of single-piece fireproof glass at home and abroad: [0004]...

Claims

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Application Information

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IPC IPC(8): C03C21/00
Inventor 王晴丁兆洋冉坤
Owner SHENYANG JIANZHU UNIVERSITY
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