Glass composition, alkali silicate glass, and preparation method and application thereof

A technology of alkali silicate and composition, which is applied in the field of glass composition to achieve good strength and toughness

Inactive Publication Date: 2017-06-13
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned systems have major defects

Method used

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  • Glass composition, alkali silicate glass, and preparation method and application thereof
  • Glass composition, alkali silicate glass, and preparation method and application thereof
  • Glass composition, alkali silicate glass, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0096]Weigh each component according to the glass composition shown in Table 1, mix well, pour the mixture into a platinum crucible, then heat in a resistance furnace at 1430°C for 4 hours, and stir with a platinum rod to remove air bubbles. Pour the molten glass into a stainless steel cast iron mold to form a specified block glass product, then anneal the glass product in an annealing furnace for 2 hours, turn off the power and cool down to 25°C with the furnace. Cut, grind and polish the glass products, clean the surface of the polished 80*80*1mm glass products with deionized water, put them into molten NaNO at 450°C after preheating in the preheating furnace 3 and KNO 3 (NaNO 3 and KNO 3 The molar ratio is 1.2:1) and treated for 10h, annealed and cooled, cleaned with deionized water, dried, and then preheated in a preheating furnace and placed in molten NaNO at 430°C 3 and KNO 3 Mixture (NaNO 3 and KNO 3 The molar ratio is 0.005:1) and treated for 0.5h, annealed and c...

Embodiment 10-15、 comparative example 1-3

[0102] According to the method of Example 1, the difference is that the composition of the mixture (corresponding to the glass composition) and the performance measurement results of the obtained product are shown in Table 2.

[0103] Table 2

[0104]

[0105]

Embodiment 16-17、 comparative example 5-8

[0109] The glass products obtained by polishing Example 16 (the corresponding glass composition is the same as Example 2), Example 17 (the corresponding glass composition is the same as Example 9), and Comparative Examples 5-8 (the corresponding glass composition is the same as Comparative Examples 1-4 respectively) Perform secondary melting and thinning treatment to obtain a glass product of 80*50*0.08mm. The surface of the glass product is cleaned with deionized water and preheated in a preheating furnace, and then put into molten KNO at 410°C 3 After annealing and cooling for 2.5 hours, take it out and cool it to 25°C, wash it with deionized water and dry it to obtain a finished glass product for use. Various properties of each glass product were measured respectively, and the results are shown in Table 3 (wherein, the thickness of the glass obtained in Comparative Example 8 was 0.08 mm, and a chemical strengthening treatment was performed).

[0110] table 3

[0111]

...

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Abstract

The invention relates to the field of glass, and discloses a glass composition, alkali silicate glass, and a preparation method and application thereof. The composition is prepared from the following oxides in percentage by weight: 40-80 weight percent of SiO2+B2O3+P2O5, 3-25 weight percent of Al2O3, 10-25 weight percent of Li2O+Na2O+K2O, 0-15 weight percent of MgO+CaO+SrO+BaO, 0-5 weight percent of ZnO, and 0-5 weight percent of RE2O3, wherein the composition contains at least one of B2O3 and P2O5, and contains at least one of ZnO and RE2O3. The alkali silicate glass has low fragility, good strength and good toughness.

Description

technical field [0001] The invention relates to the field of glass, in particular to a composition for glass, alkali silicate glass and a preparation method and application thereof. Background technique [0002] In the field of liquid crystal display, backlight modules mainly include direct-lit type and edge-lit type. In mainstream edge-lit backlight modules, a light guide plate is required as a uniform light device, which uses the principle of total reflection and scattering of light to design many circular or square diffusion dots (or micro Groove), when the light hits the diffusion point, the interference phenomenon between the partial total reflection light path and the light is destroyed by using various density and different size diffusion points, and the cold cathode lamp pipeline light source or LED point light source is transferred from the light guide plate The side ends are introduced and evenly distributed on the plane of the light guide plate, so that the light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095C03C3/112C03C3/097C03C3/093
CPCC03C3/095C03C3/093C03C3/097C03C3/112
Inventor 张广涛李青郑权王丽红闫冬成李瑞佼李俊锋
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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