CN108558203A - A kind of thermochromism alumina silicate glass and preparation method thereof - Google Patents

Abstract

The present invention relates to a kind of thermochromism alumina silicate glasses and preparation method thereof, it is characterised in that：It is made of the raw material of following weight percent：SiO₂ 55%~72%、Al₂O₃ 15%~24%、B₂O₃ 0%~7%、K₂O 0~8%、MgO 0~4%、CaO 0~1%、Na₂O 2~15%、VO₂0.8%~8%；（1）Dispensing；（2）Mixing and 0.25 0.5h of ball milling make raw material be uniformly mixed；（3）It is melted：It is melted in a furnace, 1000 DEG C is warming up to the speed of 5 ~ 10 DEG C/min, melting temperature is then warming up to the speed of 3 ~ 5 DEG C/min, 1300 ~ 1600 DEG C of glass melting temperature keeps the temperature 2 ~ 5h, obtains glass metal；（4）Molding：Glass metal is poured into rapidly to stainless steel plate die for molding；（5）Annealing：3 ~ 6h is kept the temperature at 650 DEG C, glass sample cools to room temperature with the furnace.Advantages of the present invention：Transformation from monocline Rutile Type to cubic Rutile Type can occur at 68 DEG C for a kind of thermochromism alumina silicate glass, realize that the intelligence of indoor temperature is adjusted, and color developing effect is good, the discoloration response time is fast；Due to there are a large amount of alkali metal and aluminium element, making it have high elastic modulus in aluminum silicate glass；Hypovanadic oxide powder is directly introduced in dispensing, manufacture craft is simple, at low cost.

Description

A kind of thermochromism alumina silicate glass and preparation method thereof

Technical field

The invention belongs to special glass manufacturing technology fields, are related to photo chromic glass production field, and in particular to a kind of thermotropic Change colour alumina silicate glass and preparation method thereof.

Background technology

Photo chromic glass refer to change color under illumination, the certain conditions such as press by low-tension current or surface, and with Condition changes and changes, and reversibly automatically restores to the glass of original state again after application condition disappears, is also dimming glass Or transmitance adjustable glass.This glass changes the transmission characteristic of itself with environment, may be implemented to have solar radiation energy Effect control, to meet human demand and reach energy-efficient purpose.Glass can be divided into four classes according to metachromatic principle, and non-is not thermotropic Photo chromic glass, electrochomeric glass, photochromic glass and gas-discoloration glass.

Currently, the production of thermochromism glass is mostly one layer of thermochromic materials of coating on simple glass（It is organic and inorganic, poly- Close object and large biological molecule etc.）, with the oxide of alum（VO₂）Based on film coating be people research hot spot.To VO₂It is thin The preparation method research of film is also relatively more, mainly there is evaporation, sputtering method, sol-gel method, aumospheric pressure cvd method Deng, but the research of photo chromic glass is directly used to prepare using vanadium dioxide powder as raw material, it is fewer at present.

Invention content

It is an object of the invention to make up the deficiencies in the prior art, a kind of thermochromism alumina silicate glass and its system are provided Preparation Method.

To achieve the above object, the technical solution adopted by the present invention is as follows：

A kind of thermochromism alumina silicate glass, it is characterised in that：It is made of the raw material of following weight percent：SiO₂ 55%~ 72%、Al₂O₃ 15%~24%、B₂O₃ 0%~7%、K₂O 0~8%、MgO 0~4%、CaO 0~1%、Na₂O 2~15%、VO₂0.8%~8%；

A kind of preparation method of thermochromism alumina silicate glass, it is characterised in that include the following steps：

（1）Dispensing：By above-mentioned weight percent preparation raw material；

（2）Mixing and ball milling：Prepared raw material is fitted into ball mill and is mixed and is ground, Ball-milling Time control 0.5 ~ 2.5h obtains uniform mixture；

（3）It is melted：The mixture ground is melted in a furnace, is warming up to 1000 DEG C with the speed of 5 ~ 10 DEG C/min, then It is warming up to melting temperature with the speed of 3 ~ 5 DEG C/min, melting temperature is 1300 ~ 1600 DEG C, keeps the temperature 2 ~ 5h（Mixture is completely molten Melt）, obtain clarification, homogenizing glass metal；

（4）Molding：Glass metal is poured into rapidly to stainless steel plate die for molding（According to cooperation doses, correspondingly-sized is chosen Grinding tool）；

（5）Annealing：Glass sample after molding is immediately placed in annealing furnace, 3 ~ 6h is kept the temperature at 650 DEG C, glass sample is with furnace cooling But to room temperature, you can obtain a kind of thermochromism alumina silicate glass.

Advantages of the present invention：Using this method prepare a kind of thermochromism alumina silicate glass, can occur at 68 DEG C from Monocline Rutile Type realizes that the intelligence of indoor temperature is adjusted to the transformation of cubic Rutile Type, and color developing effect is good, when becoming colour response Between it is fast；Due to there are a large amount of alkali metal and aluminium element, making it have high elastic modulus in aluminum silicate glass；Directly in dispensing Hypovanadic oxide powder is introduced, manufacture craft is simple, at low cost.

Specific implementation mode

A kind of thermochromism alumina silicate glass and preparation method thereof, specific implementation step is as follows：

Embodiment 1

（1）It is SiO by weight percentage₂ 57%、Al₂O₃ 15%、B₂O₃ 4%、K₂O 7.5%、MgO 2%、CaO 0.5%、 Na₂O14%、VO₂ 0.8% carries out dispensing；

（2）Prepared above-mentioned raw materials are fitted into ball mill and is mixed and is ground, 60 min of Ball-milling Time is obtained and uniformly mixed Close material；

（3）The mixture ground is melted in a furnace, 1000 DEG C are warming up to the speed of 10 DEG C/min, then with 5 DEG C/ The speed of min is warming up to 1300 DEG C, controls 1300 DEG C of melting temperature, keeps the temperature 5h, obtain clarification, homogenizing glass metal；

（4）Glass metal is poured into rapidly to stainless steel plate die for molding, according to cooperation doses, chooses the grinding tool of correspondingly-sized；

（5）Glass sample after molding is immediately placed in annealing furnace, 3h is kept the temperature at 650 DEG C, glass sample cools to the furnace Room temperature, you can obtain a kind of thermochromism alumina silicate glass.

Embodiment 2

（1）It is SiO by weight percentage₂ 60%、Al₂O₃ 24%、B₂O₃ 1%、K₂O 4%、MgO 0.5%、CaO 1%、Na₂O 9.5%、、VO₂ 2% carries out dispensing；

（2）Prepared above-mentioned raw materials are fitted into ball mill and is mixed and is ground, 80 min of Ball-milling Time is obtained and uniformly mixed Close material；

（3）The mixture ground is melted in a furnace, 1000 DEG C are warming up to the speed of 8 DEG C/min, then with 4 DEG C/min Speed be warming up to 1500 DEG C, control 1500 DEG C of melting temperature, keep the temperature 2h, obtain clarification, homogenizing glass metal；

（4）Glass metal is poured into rapidly to stainless steel plate die for molding, according to cooperation doses, chooses the grinding tool of correspondingly-sized；

（5）Glass sample after molding is immediately placed in annealing furnace, 4h is kept the temperature at 650 DEG C, glass sample cools to the furnace Room temperature, you can obtain a kind of thermochromism alumina silicate glass.

Embodiment 3

（1）It is SiO by weight percentage₂ 66%、Al₂O₃ 20%、B₂O₃ 2%、SiO₂66%、K₂O 2%、MgO4%、CaO 1%、 Na₂O 5%、VO₂5% carries out dispensing；

（2）Prepared above-mentioned raw materials are fitted into ball mill and is mixed and is ground, 100 min of Ball-milling Time is obtained uniformly Mixture；

（3）The mixture ground is melted in a furnace, 1000 DEG C are warming up to the speed of 8 DEG C/min, then with 4 DEG C/min Speed be warming up to 1400 DEG C, control 1400 DEG C of melting temperature, keep the temperature 3h, obtain clarification, homogenizing glass metal；

（4）Glass metal is poured into rapidly to stainless steel plate die for molding, according to cooperation doses, chooses the grinding tool of correspondingly-sized；

（5）Glass sample after molding is immediately placed in annealing furnace, 5h is kept the temperature at 650 DEG C, glass sample cools to the furnace Room temperature, you can obtain a kind of thermochromism alumina silicate glass.

Embodiment 4

（1）It is SiO by weight percentage₂ 72%、Al₂O₃ 17%、B₂O₃ 7%、K₂O 0.5%、MgO 1%、CaO 0.5%、Na₂O 2%、VO₂8% carries out dispensing；

（2）Prepared above-mentioned raw materials are fitted into ball mill and is mixed and is ground, 120 min of Ball-milling Time is obtained uniformly Mixture；

（3）The mixture ground is melted in a furnace, 1000 DEG C are warming up to the speed of 6 DEG C/min, then with 3 DEG C/min Speed be warming up to 1550 DEG C, control 1550 DEG C of melting temperature, control 1550 DEG C of melting temperature, keep the temperature 2h, obtain clarification, homogenizing Glass metal；

（4）Glass metal is poured into rapidly to stainless steel plate die for molding, according to cooperation doses, chooses the grinding tool of correspondingly-sized；

（5）Glass sample after molding is immediately placed in annealing furnace, 6h is kept the temperature at 650 DEG C, glass sample cools to the furnace Room temperature, you can obtain a kind of thermochromism alumina silicate glass.

The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form；Appoint What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations Apply example.Therefore, every content without departing from technical solution of the present invention, according to the technical essence of the invention does above example Any simple modification, equivalent replacement, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.

Claims (2)

1. a kind of thermochromism alumina silicate glass, it is characterised in that：It is made of the raw material of following weight percent：SiO₂ 55%~ 72%、Al₂O₃ 15%~24%、B₂O₃ 0%~7%、K₂O 0~8%、MgO 0~4%、CaO 0~1%、Na₂O 2~15%、VO₂ 0.8%~8%。

2. a kind of preparation method of thermochromism alumina silicate glass, it is characterised in that include the following steps：

（1）Dispensing：By above-mentioned weight percent preparation raw material；

（2）Mixing and ball milling：Prepared raw material is fitted into ball mill and is mixed and is ground, control 0.25-0.5h makes original Material is uniformly mixed, and obtains uniform mixture；

（3）It is melted：The mixture ground is melted in a furnace, is warming up to 1000 DEG C with the speed of 5 ~ 10 DEG C/min, then It is warming up to melting temperature with the speed of 3 ~ 5 DEG C/min, melting temperature is 1300 ~ 1600 DEG C, keep the temperature 2 ~ 5h, obtains clarification, homogenizing Glass metal；

（4）Molding：Glass metal is poured into rapidly to stainless steel plate die for molding；

（5）Annealing：Glass sample after molding is immediately placed in annealing furnace, 3 ~ 6h is kept the temperature at 650 DEG C, glass sample is with furnace cooling But to room temperature, you can obtain a kind of thermochromism alumina silicate glass.