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Catalyst for chemically enhancing glass and use thereof

A technology of glass strengthening and catalyst, which is applied in the field of chemical catalyst composition and its application, can solve the problems of long strengthening process and low impact resistance of glass, and achieve the effect of increasing glass strength and compressive stress

Active Publication Date: 2009-02-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The strengthening composition generally used in the existing glass chemical strengthening process is to add 0.5% potassium carbonate to the molten salt of potassium nitrate and / or potassium nitrite, or add 0.02% potassium phosphate and 0.2% aluminum oxide, although It can improve the strength of glass, but the strengthening process takes a long time, and the impact resistance of strengthened glass is low

Method used

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  • Catalyst for chemically enhancing glass and use thereof
  • Catalyst for chemically enhancing glass and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The parts by weight of each component of the first catalyst:

[0040] Component A: Potassium Chromate 80 Component B: Potassium Carbonate 50

[0041] The parts by weight of each component of the second catalyst:

[0042] Component C: Potassium Hydroxide 40 Component D: Potassium Silicate 20

[0043] Add the above-mentioned first catalyst to potassium nitrate molten salt E and heat and melt to form a molten salt to obtain the first glass strengthening liquid; add the above-mentioned second catalyst to another potassium nitrate molten salt F to heat and melt to form a molten salt to obtain the second Glass strengthening fluid.

[0044] Wherein potassium nitrate molten salt and the first catalyst weight ratio are 99:1;

[0045] Wherein the weight ratio of potassium nitrate molten salt to the second catalyst is 98.5:1.5.

[0046] The method of using this glass strengthening fluid to increase the strength of glass:

[0047] In step a, the polished soda-lime float glass ...

Embodiment 2

[0050] The parts by weight of each component of the first catalyst:

[0051] Component A: Potassium Chromate 100 Component B: Potassium Carbonate 45

[0052] The parts by weight of each component of the second catalyst:

[0053] Component C: Potassium Hydroxide 1 Component D: Potassium Pyrophosphate 10,

[0054]Add the above-mentioned first catalyst to potassium nitrate molten salt E and heat and melt to form molten salt to obtain the first glass strengthening liquid; add the above-mentioned second catalyst to potassium nitrate molten salt F to heat and melt to form molten salt to obtain the second glass strengthening liquid liquid.

[0055] Wherein the potassium nitrate molten salt and the first catalyst weight part ratio are 98.5:1.5;

[0056] Wherein the weight ratio of potassium nitrate molten salt to the second catalyst is 99:1.

[0057] The method of using this glass strengthening fluid to increase the strength of glass:

[0058] In step a, the polished soda-lime fl...

Embodiment 3

[0061] The parts by weight of each component of the first catalyst:

[0062] Component A: Potassium sulfate 70 Component B: Aluminum oxide 40

[0063] The parts by weight of each component of the second catalyst:

[0064] Component C: Potassium Hydroxide 10 Component D: Potassium Phosphate 80,

[0065] Add the above-mentioned first catalyst to potassium nitrite molten salt E and heat and melt to form a molten salt to obtain the first glass strengthening liquid; add the above-mentioned second catalyst to potassium nitrate molten salt F to heat and melt to form a molten salt to obtain the second glass Strengthening fluid.

[0066] Wherein the potassium nitrite molten salt and the first catalyst weight ratio are 98.5:1.5;

[0067] Wherein the weight ratio of potassium nitrate molten salt to the second catalyst is 99:1.

[0068] Wherein the potassium nitrate molten salt is a mixture of potassium nitrate and potassium chloride, and the potassium chloride accounts for 10% of the...

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Abstract

The invention discloses a catalyst used for strengthening glass intensity, wherein, the catalyst comprises a first catalyst and a second catalyst. The first catalyst is added into molten salt, and first glass strengthening liquid is obtained. The second catalyst is added into the molten salt, and second glass strengthening liquid is obtained. Then the glass to be strengthened is put into the first glass strengthening liquid and the second glass strengthening liquid in sequence, and the strengthening process is completed. The catalyst of the invention can improve surface compressive stress and strength of the glass, as well as can prolong the service life of the glass. The invention pertains to the chemical strengthening field of the glass.

Description

technical field [0001] The invention relates to a chemical catalyst composition and its application field, in particular to a catalyst for chemical strengthening of glass. The present invention also relates to a method for preparing a glass chemical strengthening liquid by using the above-mentioned catalyst and its application. Background technique [0002] There are a large number of microcracks on the surface of the glass, which can easily cause stress concentration and cause the glass to break, which seriously affects the tensile strength of the glass. In order to increase the tensile strength of glass, a lot of research has been done on the strengthening process. Chemical strengthening includes high temperature chemical strengthening and low temperature chemical strengthening. Low-temperature chemical strengthening is widely used in production due to its low cost. It generally refers to spraying on the surface of soda-lime float glass with a thickness of less than 3mm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00C03C21/00
Inventor 杨会良
Owner BYD CO LTD
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