Thermochromic aluminum silicate glass and preparation method thereof

An aluminosilicate glass and thermochromic technology, which is applied in the field of special glass manufacturing and color-changing glass production to achieve the effects of high elastic modulus, fast discoloration response time and simple production process

Inactive Publication Date: 2018-09-21
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

to VO 2 There are also many studies on the preparation methods of thin films, mainly including evaporation method, sputtering method, sol-gel method, atmospheric pressure chemi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] (1) SiO by weight percentage 2 57%, Al 2 O 3 15%, B 2 O 3 4%, K 2 O 7.5%, MgO 2%, CaO 0.5%, Na 2 O14%, VO 2 0.8% for ingredients;

[0017] (2) Load the above-mentioned ingredients into a ball mill for mixing and grinding, and the ball milling time is 60 minutes to obtain a uniform mixture;

[0018] (3) Melt the ground mixture in a furnace, heat it up to 1000°C at a rate of 10°C / min, then heat it up to 1300°C at a rate of 5°C / min, control the melting temperature to 1300°C, and hold it for 5h. Obtain clarified and homogenized molten glass;

[0019] (4) The molten glass is quickly poured into the stainless steel plate mold to form, and the abrasive tool of the corresponding size is selected according to the batch amount;

[0020] (5) Put the formed glass sample into the annealing furnace immediately, keep it at 650℃ for 3h, and cool the glass sample to room temperature with the furnace to obtain a thermochromic aluminosilicate glass.

Example Embodiment

[0021] Example 2

[0022] (1) SiO by weight percentage 2 60%, Al 2 O 3 24%, B 2 O 3 1%, K 2 O 4%, MgO 0.5%, CaO 1%, Na 2 O9.5%、、VO 2 2% for ingredients;

[0023] (2) Put the prepared above raw materials into a ball mill for mixing and grinding, and the ball milling time is 80 minutes to obtain a uniform mixture;

[0024] (3) Melt the ground mixture in a furnace, heat it up to 1000°C at a rate of 8°C / min, then heat it up to 1500°C at a rate of 4°C / min, control the melting temperature to 1500°C, and hold for 2h. Obtain clarified and homogenized molten glass;

[0025] (4) The molten glass is quickly poured into the stainless steel plate mold to form, and the abrasive tool of the corresponding size is selected according to the batch amount;

[0026] (5) Put the shaped glass sample into the annealing furnace immediately, keep it at 650℃ for 4h, and cool the glass sample to room temperature with the furnace to obtain a thermochromic aluminosilicate glass.

Example Embodiment

[0027] Example 3

[0028] (1) SiO by weight percentage 2 66%, Al 2 O 3 20%, B 2 O 3 2%, SiO 2 66%, K 2 O 2%, MgO4%, CaO 1%, Na 2 O 5%, VO 2 5% for ingredients;

[0029] (2) Load the above-mentioned prepared raw materials into a ball mill for mixing and grinding, and the ball milling time is 100 minutes to obtain a uniform mixture;

[0030] (3) Melt the ground mixture in a furnace, heat it up to 1000°C at a rate of 8°C / min, then heat it up to 1400°C at a rate of 4°C / min, control the melting temperature of 1400°C, and hold it for 3 hours. Obtain clarified and homogenized molten glass;

[0031] (4) The molten glass is quickly poured into the stainless steel plate mold to form, and the abrasive tool of the corresponding size is selected according to the batch amount;

[0032] (5) Put the formed glass sample into the annealing furnace immediately, keep it at 650°C for 5 hours, and cool the glass sample to room temperature with the furnace to obtain a thermochromic aluminosilicate glass....

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Abstract

The invention relates to thermochromic aluminum silicate glass and a preparation method thereof. The thermochromic aluminum silicate glass is characterized by being prepared from, by weight, 55%-72% of SiO2, 15%-24% of Al2O3, 0%-7% of B2O3, 0-8% of K2O, 0-4% of MgO, 0-1% of CaO, 2-15% of Na2O and 0.8-8% of VO2. The preparation method includes: (1) material preparation; (2) mixing and ball millingfor 0.25-0.5h to well mix materials; (3) melting, to be more specific, melting in a melting furnace, heating to 1000 DEG C at a speed of 5-10DEG C/min, then heating to a melting temperature of 1300-1600 DEG C at a speed of 3-5DEG C/min, and keeping the temperature for 2-5h to obtain glass liquid; (4) forming, to be more specific, quickly pouring the glass liquid into a stainless steel plate mouldto realize forming; (5) annealing, to be more specific, keeping the temperature at 650 DEG C for 3-6h, and subjecting a glass sample to furnace cooling to the room temperature. The thermochromic aluminum silicate glass has advantages that the thermochromic aluminum silicate glass is converted from a monoclinic rutile phase to a square rutile phase at 68 DEG C, intelligent indoor temperature regulation is realized, and excellent color developing effects and quickness in color changing response are realized; due to a large quantity of alkali metals and aluminum element in the aluminum silicate glass, high elastic modulus is achieved; by direct introduction of vanadium dioxide powder, simplicity in manufacturing process and low cost are realized.

Description

technical field [0001] The invention belongs to the technical field of special glass manufacturing, relates to the field of color-changing glass production, in particular to a thermochromic aluminosilicate glass and a preparation method thereof. Background technique [0002] Color-changing glass refers to the glass that changes color under certain conditions such as light, low-voltage current or surface pressure, and changes with the condition. When the applied condition disappears, it reversibly and automatically returns to the original state, also called dimming glass. Or transmittance adjustable glass. This kind of glass changes its own transmission characteristics with the environment, which can realize effective control of solar radiation energy, so as to meet human needs and achieve the purpose of energy saving. Glass can be divided into four categories according to the principle of color change, especially thermochromic glass, electrochromic glass, photochromic glass...

Claims

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Application Information

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IPC IPC(8): C03C4/02C03C3/091
CPCC03C3/091C03C4/02
Inventor 彭寿王萍萍马立云石丽芬倪嘉韩娜崔介东操芳芳高强王巍巍赵凤阳仲召进曹欣单传丽
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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