CN103332857A - Alkali-free aluminum borosilicate glass clarifier and preparation method thereof - Google Patents
Alkali-free aluminum borosilicate glass clarifier and preparation method thereof Download PDFInfo
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- CN103332857A CN103332857A CN2013102321638A CN201310232163A CN103332857A CN 103332857 A CN103332857 A CN 103332857A CN 2013102321638 A CN2013102321638 A CN 2013102321638A CN 201310232163 A CN201310232163 A CN 201310232163A CN 103332857 A CN103332857 A CN 103332857A
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- alkali
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- containing boron
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Abstract
The invention discloses an alkali-free aluminum borosilicate glass clarifier and a preparation method thereof. The alkali-free aluminum borosilicate glass clarifier comprises the following components in percentage by mass: 0.5-1% of variable-valence oxide, 7-14% of glass powder and 85-92% of oxygen donator. The variable-valence oxide and the glass powder are molten and pulverized, so that the variable-valence compound can be well dispersed in the glass powder, and the prepared alkali-free aluminum borosilicate glass clarifier has favorable clarifying effect, thereby enhancing the quality of the prepared glass.
Description
Technical field
The invention belongs to liquid crystal panel and make the field, relate to a kind of silicate glass containing boron and aluminium without alkali finings and preparation method thereof.
Background technology
Because the particular requirement of liquid crystal panel manufacturing process, existing market main flow base plate glass product all belongs to the silicate glass containing boron and aluminium without alkali system.Because this glass viscosity value height is unfavorable for the clarification of bubble, so seek the object that effective finings is each company's primary study always.(before 2006) in early days, arsenic oxide arsenoxide (As
2O
3) and weisspiessglanz (Sb
2O
3) be used to TFT the material side of LCD base plate glass, still because arsenic oxide arsenoxide (As
2O
3) and weisspiessglanz (Sb
2O
3) can cause the problem of environment and healthy aspect, along with environmental requirement is more and more stricter, this two classes finings is progressively banned use of.
Now, a lot of enterprises use stannic oxide and cerium oxide to make finings.Because the add-on of stannic oxide and cerium oxide is little, general add-on be 0.05% 0.3%, be difficult to be distributed to preferably cause the clarifying effect of performance limited in the glass, so be necessary to provide the finings of better effect.
Summary of the invention
The object of the present invention is to provide a kind of silicate glass containing boron and aluminium without alkali finings and preparation method thereof, the clarifying effect that it can play.
For achieving the above object, the present invention adopts following technical scheme to realize:
A kind of silicate glass containing boron and aluminium without alkali finings comprises 0.5～1% the oxide compound that appraises at the current rate by mass percentage, 7～14% glass powder, 85～92% oxygen donator.
The described oxide compound that appraises at the current rate is one or both in stannic oxide, the cerium oxide.
Described oxygen donator is one or both in nitrate and the vitriol.
Described nitrate is one or both in strontium nitrate, nitrate of baryta, magnesium nitrate, nitrocalcite, the zinc nitrate.
Described vitriol is one or both in calcium sulfate, barium sulfate, Tai-Ace S 150, sal epsom, the zinc sulfate.
Described glass powder is made through pulverizing by TFT glass.
A kind of preparation method of silicate glass containing boron and aluminium without alkali finings, the oxide compound that will appraise at the current rate directly mix with glass powder afterwards 1000 1200 ℃ of following fusions; Through cooling, pulverize then, obtain batch mixing and again batch mixing and oxygen donator are mixed, obtain the silicate glass containing boron and aluminium without alkali finings.
With respect to prior art, the beneficial effect that the present invention has: the present invention adopts appraise at the current rate oxide compound, glass powder and oxygen donator to make raw material, to appraise at the current rate earlier oxide compound and glass the glass powder fusion and pulverize, can well the compound that appraises at the current rate be distributed in the glass powder, make the silicate glass containing boron and aluminium without alkali finings that makes have good clarifying effect, thereby can improve the quality of prepared glass.
Further, among the present invention by adding stannic oxide, the Sn oxide compound under the high temperature more than 1400 ℃ from SnO
2(Sn
4+) valence mumber is changed to SnO (Sn
2+).Along with this valence mumber changes, emit clarification gas (oxygen).And, with the Sn0 more than the certain proportion
2When valence mumber is changed to SnO, owing to emit sufficient clarification gas, thereby can clarify effectively.
Pass through to add cerium oxide, CeO among the present invention
2Be a kind of strong oxidizer, it at high temperature can decompose generation CeO
2, discharge certain O
2, O
2Enter in the bubble of glass metal, reduce the partial pressure in the bubble, make it to continue to absorb gas, impel bubble volume to increase, accelerate to rise, thereby reach the purpose of glass clarifying and homogenizing.
Itself is not finings for nitrate among the present invention, plays the effect that promotes clarification in clarifying process.
Vitriol among the present invention produces O after decomposition
2And SO
2, growing up of bubble played an important role with dissolving.Reducible sulfur clarification theory thinks that the effect of vitriol in glass melting and clarification mainly contains: Action of Surfactant, interfacial turbulence effect, high-temperature exhaust air effect, homogenizing.
Embodiment
Below by specific embodiment the present invention is described in further detail.Need to prove that following embodiment only is used for explanation the present invention, but is not limited to practical range of the present invention.
Embodiment 1
A kind of silicate glass containing boron and aluminium without alkali finings comprises 0.5% stannic oxide by mass percentage, 7.5% glass powder and 92% nitrate of baryta.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: stannic oxide is directly mixed the back 1000 ℃ of following fusions with glass powder; Then through cooling, pulverize, obtain batch mixing, add nitrate of baryta in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 2
A kind of silicate glass containing boron and aluminium without alkali finings comprises 1% cerium oxide by mass percentage, 7% glass powder and 92% calcium sulfate.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: cerium oxide is directly mixed the back 1200 ℃ of following fusions with glass powder; Then through cooling, pulverize, obtain batch mixing, add calcium sulfate in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 3
A kind of silicate glass containing boron and aluminium without alkali finings comprises 1% stannic oxide and the mixture of cerium oxide, 10% glass powder, 89% nitrate of baryta and the mixture of strontium nitrate by mass percentage.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: with stannic oxide directly with after glass powder mixes, 1050 ℃ of following fusions; Obtain batch mixing through cooling, pulverizing then, in batch mixing, add the mixture of nitrate of baryta and strontium nitrate again, and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 4
A kind of silicate glass containing boron and aluminium without alkali finings comprises 0.8% cerium oxide by mass percentage, 14% glass powder, 85.2% calcium sulfate and the mixture of barium sulfate.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: cerium oxide is directly mixed the back 1100 ℃ of following fusions with glass powder; Cool off then, pulverize; Obtain batch mixing, in batch mixing, add the mixture of calcium sulfate and barium sulfate again, and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 5
A kind of silicate glass containing boron and aluminium without alkali finings comprises 1% stannic oxide by mass percentage, 14% glass powder, 85% sal epsom and the mixture of nitrocalcite.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: stannic oxide is directly mixed the back 1100 ℃ of following fusions with glass powder; Then through cooling, pulverize, obtain batch mixing, add the mixture of sal epsom and nitrocalcite in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 6
A kind of silicate glass containing boron and aluminium without alkali finings comprises 0.6% cerium oxide by mass percentage, 13.4% glass powder, the mixture of 86% nitrocalcite, zinc nitrate and Tai-Ace S 150.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: cerium oxide is directly mixed the back 1100 ℃ of following fusions with glass powder; Cool off then, pulverize; Obtain batch mixing, add the mixture of nitrocalcite, zinc nitrate and Tai-Ace S 150 in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Embodiment 7
A kind of silicate glass containing boron and aluminium without alkali finings comprises 0.7% stannic oxide by mass percentage, 12% glass powder, the mixture of 87.3% strontium nitrate, nitrate of baryta, Tai-Ace S 150 and zinc sulfate.
The preparation method of silicate glass containing boron and aluminium without alkali finings is in the present embodiment: stannic oxide is directly mixed the back 1200 ℃ of following fusions with glass powder; Then through cooling, pulverize, obtain batch mixing, add the mixture of strontium nitrate, nitrate of baryta, Tai-Ace S 150 and zinc sulfate in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Glass powder all is to be made through pulverizing by TFT glass among the present invention, comprises silicon oxide in the TFT glass, aluminum oxide, boric anhydride, calcium oxide, barium oxide, magnesium oxide and strontium oxide etc.The prepared silicate glass containing boron and aluminium without alkali finings of the present invention is applied in the glass identical with glass powder component in the finings; In use, with silicate glass containing boron and aluminium without alkali finings and the raw material that will prepare glass heating and melting together, moulding then, annealing.
Can produce the glass cullet of part on the TFT glass production line, therefore, the source of glass powder is more convenient, so not only can reuse waste, and can reduce the cost of made silicate glass containing boron and aluminium without alkali finings.
Claims (7)
1. a silicate glass containing boron and aluminium without alkali finings is characterized in that, comprises 0.5～1% the oxide compound that appraises at the current rate by mass percentage, 7～14% glass powder, 85～92% oxygen donator.
2. a kind of silicate glass containing boron and aluminium without alkali finings according to claim 1 is characterized in that, the described oxide compound that appraises at the current rate is one or both in stannic oxide, the cerium oxide.
3. a kind of silicate glass containing boron and aluminium without alkali finings according to claim 1 is characterized in that, described oxygen donator is one or both in nitrate and the vitriol.
4. a kind of silicate glass containing boron and aluminium without alkali finings according to claim 3 is characterized in that, described nitrate is one or both in strontium nitrate, nitrate of baryta, magnesium nitrate, nitrocalcite, the zinc nitrate.
5. a kind of silicate glass containing boron and aluminium without alkali finings according to claim 3 is characterized in that, described vitriol is one or both in calcium sulfate, barium sulfate, Tai-Ace S 150, sal epsom, the zinc sulfate.
6. a kind of silicate glass containing boron and aluminium without alkali finings according to claim 1 is characterized in that described glass powder is made through pulverizing by TFT glass.
7. the preparation method of a kind of silicate glass containing boron and aluminium without alkali finings as claimed in claim 1 is characterized in that, the oxide compound that will appraise at the current rate directly mixes the back 1000～1200 ℃ of following fusions with glass powder; Then through cooling, pulverize, obtain batch mixing, add oxygen donator in the batch mixing again and mix, obtain the silicate glass containing boron and aluminium without alkali finings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102321638A CN103332857A (en) | 2013-06-09 | 2013-06-09 | Alkali-free aluminum borosilicate glass clarifier and preparation method thereof |
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| CN2013102321638A CN103332857A (en) | 2013-06-09 | 2013-06-09 | Alkali-free aluminum borosilicate glass clarifier and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089792A (en) * | 2017-06-22 | 2017-08-25 | 合肥钢骨玻璃制品有限公司 | A kind of preparation technology of safety glass |
| CN107445471A (en) * | 2017-08-08 | 2017-12-08 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of float process leaded light glass sheet compound clarifier |
| CN108863046A (en) * | 2018-08-31 | 2018-11-23 | 江苏京展能源科技有限公司 | The solar energy evacuated effective glass fining agent of one kind and its application |
| CN109775963A (en) * | 2018-12-28 | 2019-05-21 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of melted defecation method of alkali-free glass decompression |
| CN112624603A (en) * | 2020-12-10 | 2021-04-09 | 咸宁南玻光电玻璃有限公司 | Glass clarifying agent and method for preparing ultrahigh aluminosilicate cover plate glass by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009108285A2 (en) * | 2008-02-26 | 2009-09-03 | Corning Incorporated | Fining agents for silicate glasses |
| CN102584003A (en) * | 2012-02-29 | 2012-07-18 | 成都中光电科技有限公司 | Compound clarifying agent for high-aluminum alkali-free borosilicate glass |
| CN102659311A (en) * | 2012-04-19 | 2012-09-12 | 益阳生力材料科技有限公司 | Glass refining agent, production method and application |
-
2013
- 2013-06-09 CN CN2013102321638A patent/CN103332857A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009108285A2 (en) * | 2008-02-26 | 2009-09-03 | Corning Incorporated | Fining agents for silicate glasses |
| CN102584003A (en) * | 2012-02-29 | 2012-07-18 | 成都中光电科技有限公司 | Compound clarifying agent for high-aluminum alkali-free borosilicate glass |
| CN102659311A (en) * | 2012-04-19 | 2012-09-12 | 益阳生力材料科技有限公司 | Glass refining agent, production method and application |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089792A (en) * | 2017-06-22 | 2017-08-25 | 合肥钢骨玻璃制品有限公司 | A kind of preparation technology of safety glass |
| CN107445471A (en) * | 2017-08-08 | 2017-12-08 | 中国洛阳浮法玻璃集团有限责任公司 | A kind of float process leaded light glass sheet compound clarifier |
| CN108863046A (en) * | 2018-08-31 | 2018-11-23 | 江苏京展能源科技有限公司 | The solar energy evacuated effective glass fining agent of one kind and its application |
| CN109775963A (en) * | 2018-12-28 | 2019-05-21 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of melted defecation method of alkali-free glass decompression |
| CN112624603A (en) * | 2020-12-10 | 2021-04-09 | 咸宁南玻光电玻璃有限公司 | Glass clarifying agent and method for preparing ultrahigh aluminosilicate cover plate glass by using same |
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Application publication date: 20131002 |