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High-strength glass-ceramic and preparation method thereof

A glass-ceramic, high-strength technology, applied in glass manufacturing equipment, glass forming, glass rolling, etc., can solve the problems of small space for glass-ceramics, inhibit the development of glass-ceramics, and high surface porosity. Good consistency, excellent physical and chemical properties, good toughness

Inactive Publication Date: 2018-05-11
HEFEI LIYUTAI GLASS PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing glass-ceramic still has the following problems: 1. The surface porosity is high; 2. The mechanical strength is low, including compressive strength and flexural strength; 3. The toughness is small and fragile; Small space, poor durability, and low market share have seriously inhibited the development of the glass-ceramic industry

Method used

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  • High-strength glass-ceramic and preparation method thereof
  • High-strength glass-ceramic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A high-strength glass-ceramic, the following raw materials are prepared: cullet 120kg, modified quartz powder 60kg, tremolite 10kg, mordenite 10kg, nano-scale silicon dioxide 15kg, brucite fiber 5kg, sodium borosilicate 2kg, 3kg sodium metasilicate pentahydrate, 2kg calcium aluminosilicate, 1kg boron oxide, 1kg ammonium nitrate, 1kg cerium oxide and 1kg calcium fluoride;

[0034] Above-mentioned modified quartz powder is made through the following steps:

[0035] 1) First take 60kg of quartz stone and crush and grind it to a 20-mesh sieve to obtain quartz powder;

[0036] 2) Transfer the above-mentioned quartz powder to a drying box, preheat and dry it at a temperature of 105° C. for 1 hour, and then add it to an ammonia solution with a mass percentage of 8% of the quartz powder and a concentration of 25%. Stir at ℃ for 2h, filter out the quartz powder;

[0037] 3) then to step 2) in the filtered quartz powder, add the azidosilane coupling agent S-3046 equivalent to 3...

Embodiment 2

[0047] A high-strength glass-ceramic, the following raw materials are prepared: cullet 140kg, modified quartz powder 70kg, tremolite 15kg, mordenite 15kg, nano-scale silicon dioxide 20kg, brucite fiber 10kg, sodium borosilicate 4kg, 4kg sodium metasilicate pentahydrate, 3kg calcium aluminosilicate, 5kg boron oxide, 5kg ammonium nitrate, 5kg cerium dioxide and 2kg calcium fluoride;

[0048] Above-mentioned modified quartz powder is made through the following steps:

[0049] 1) First take 70kg of quartz stone and crush and grind it to a 30-mesh sieve to obtain quartz powder;

[0050]2) Transport the above-mentioned quartz powder to a drying box, preheat and dry it at a temperature of 115° C. for 1.5 hours, and then add it to an ammonia solution with a mass percentage of 10% of the quartz powder and a concentration of 25%. Stir at 70°C for 2.5 hours, filter out the quartz powder;

[0051] 3) then to step 2) in the filtered quartz powder, add the azidosilane coupling agent S-304...

Embodiment 3

[0061] A high-strength glass-ceramic, the following raw materials are prepared: cullet 160kg, modified quartz powder 80kg, tremolite 20kg, mordenite 20kg, nano-scale silicon dioxide 25kg, brucite fiber 15kg, sodium borosilicate 6kg, Sodium metasilicate pentahydrate 5kg, calcium aluminosilicate 4kg, boron oxide 10kg, ammonium nitrate 10kg, cerium dioxide 10kg and calcium fluoride 3kg;

[0062] Above-mentioned modified quartz powder is made through the following steps:

[0063] 1) First take 80kg of quartz stone and crush and grind it to a 40-mesh sieve to obtain quartz powder;

[0064] 2) Transfer the above-mentioned quartz powder to a drying box, preheat and dry it at a temperature of 125°C for 2 hours, and then add it to an ammonia solution with a mass percentage of 12% of the quartz powder and a concentration of 25%. Stir at ℃ for 3h, filter out the quartz powder;

[0065] 3) then to step 2) in the filtered quartz powder, add the azidosilane coupling agent S-3046 equivalen...

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Abstract

The invention discloses high-strength glass-ceramic and a preparation method thereof and relates to the technical field of glass products. The glass-ceramic is prepared from crushed glass, modified quartz powder, tremolite, mordenite, nano-silica, brucite fibers, sodium borosilicate, sodium metasilicate pentahydrate, calcium aluminosilicate, boron oxide, ammonium nitrate, antimony dioxide and calcium fluoride. The preparation method comprises raw material melting, stirring melting, standing clarification, pressing molding and uniform annealing. The high-strength glass-ceramic has low surface porosity, high mechanical strength, good toughness, a long service life and a wide application range.

Description

technical field [0001] The invention relates to the technical field of glass products, in particular to a high-strength glass-ceramic and a preparation method thereof. Background technique [0002] Glass-ceramics, also known as ceramic glass, has dual characteristics of glass and ceramics; glass-ceramics is composed of crystals, and its atomic arrangement is regular. Therefore, glass-ceramics has higher brightness than ceramics and stronger toughness than glass. Glass-ceramics combines the triple advantages of glass, ceramics and natural stone, and is superior to natural stone and ceramics. It can be used in building curtain walls and indoor high-end decoration, becoming an ideal substitute for high-grade stone. At present, the existing glass-ceramic still has the following problems: 1. The surface porosity is high; 2. The mechanical strength is low, including compressive strength and flexural strength; 3. The toughness is small and fragile; Small space, poor durability, an...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C6/06C03C6/02C03C6/04C03C1/02C03B13/00C03B25/00
CPCC03C10/00C03B13/00C03B25/00C03C1/002C03C1/02
Inventor 武娟
Owner HEFEI LIYUTAI GLASS PROD CO LTD
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