CN107311450A - A kind of environmentally friendly base plate glass for TFT LCD screens - Google Patents
A kind of environmentally friendly base plate glass for TFT LCD screens Download PDFInfo
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- CN107311450A CN107311450A CN201710354574.2A CN201710354574A CN107311450A CN 107311450 A CN107311450 A CN 107311450A CN 201710354574 A CN201710354574 A CN 201710354574A CN 107311450 A CN107311450 A CN 107311450A
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- glass
- base plate
- plate glass
- oxide
- environmentally friendly
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses the raw material composition of a kind of environmentally friendly base plate glass for TFT LCD screens, including following percentage by weight：Silica 45 52%, alundum (Al2O3) 10 16%, zirconium dioxide 9 16%, magnesia 12 15%, barium monoxide 5 10%, tin oxide 8 14%, vanadic anhydride 15 22%, rare-earth oxide 7 15%.The base plate glass composition material of the present invention forms tough and tensile glass by melting, and network structure can be formed in glass by means of silica, and glass is generated tough and tensile surface by means of alundum (Al2O3), and then increase glass heat resistance and devitrification resistance, reduce glass swelling rate, the viscosity and the coefficient of expansion of glass are reduced by means of magnesia in addition, and increase the chemical resistance and devitrification resistance of glass by barium monoxide, solve existing TFT LCD not enough with base plate glass intensity and hardness, replace PbO by tin oxide simultaneously, the compositions such as As2O3 or Sb2O3, and then the existing TFT LCD of solution do not meet environmental protection standard with base plate glass, the problem of causing to reclaim difficulty and can not recycle.
Description
Technical field
The present invention relates to glass technology field, and in particular to a kind of environmentally friendly base plate glass for TFT-LCD screens.
Background technology
TFT liquid crystal display modes, with 600 times faster than old-fashioned LCD screen of pixel response speed.Advanced silicon electrode adds
Enter, greatly accelerate the pixel response speed of LCD screen, that reduces picture appearance delays phenomenon.Glass substrate is proposed more
High technical requirements, the physical dimension of the substrate after processing must not heating condition influence, i.e., this kind of glass substrate it is hot swollen
Swollen coefficient is small, and the stress resultant of the production in being made according to glass substrate considers that optimal thermal coefficient of expansion is at 28 × 10-7/ DEG C
Left and right.
So to the composition of glass substrate propose higher requirement, will with ensure to adapt to modern liquid crystal displays
Ask.Glass substrate must have following characteristic：L000ppm is less than containing alkali metal oxide；Has chemical resistance；Thermal expansion system
Number must be close with the silicon of thin film transistor (TFT)；Strain point of glass is improved, to reduce thermal shrinking quantity.
TFT-LCD glass substrate is according to the technical standard of liquid crystal display, it is necessary to possess following basic physics special
Property：1st, the thermal coefficient of expansion of glass substrate must be enough low, not higher than 40 × 10-7/ DEG C；2nd, the strain point temperature of glass substrate should
Higher than 640 DEG C；3rd, density is less than 2.6g/cm3, and more light better.
In order to obtain still alkali-free glass, using fining gases, produced when expelling glass reaction from glass melts
Gas, in addition when homogenizing fusing, it is necessary to reuse the fining gases of generation, increase alveolar layer footpath makes it float, thus taken
Go out the small bubble of participation.
But, the alkali-free glass as liquid crystal display glass substrate, the viscosity of glass melts is high, with containing alkali composition
Glass compare, need to be melted with higher temperature.In such a alkali-free glass substrate, generally cause glass in 1300-1500 degree
Change reaction, more than 1500 degree at a high temperature of deaeration, homogenize.Therefore, in fining agent, widely using can be in 1300-
1700 degree of temperature range produces the As2O3 of fining gases.But, As2O3 toxicity is very strong, glass manufacturing process or
During the processing of cullet, it is possible to the problem of polluting environment and bring health, it uses and is restricted.
The content of the invention
The present invention is intended to provide a kind of environmentally friendly base plate glass for TFT-LCD screens.
The present invention provides following technical scheme：
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
45-52%, alundum (Al2O3) 10-16%, zirconium dioxide 9-16%, magnesia 12-15%, barium monoxide 5-10%, tin oxide 8-
14%th, vanadic anhydride 15-22%, rare-earth oxide 7-15%.
The rare-earth oxide be lanthana, yittrium oxide, cerium oxide, samarium oxide, erbium oxide in two kinds or two kinds with
On composition.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
45%th, alundum (Al2O3) 16%, zirconium dioxide 9%, magnesia 12%, barium monoxide 5%, tin oxide 8%, vanadic anhydride
15%th, rare-earth oxide 7%.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
45-52%, alundum (Al2O3) 16%, zirconium dioxide 16%, magnesia 15%, barium monoxide 10%, tin oxide 8-14%, five oxidations
Two vanadium 22%, rare-earth oxide 15%.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
48%th, alundum (Al2O3) 13%, zirconium dioxide 12%, magnesia 14%, barium monoxide 8%, tin oxide 10%, vanadic anhydride
18%th, rare-earth oxide 10%.
Compared with prior art, the beneficial effects of the invention are as follows：The base plate glass composition material of the present invention is by melting shape
Into tough and tensile glass, and network structure can be formed in glass by means of silica, and make glass generation tough and tensile by means of alundum (Al2O3)
Surface, and then increase glass heat resistance and devitrification resistance, reduce glass swelling rate, reduce the viscosity of glass by means of magnesia in addition
And the coefficient of expansion, and increase the chemical resistance and devitrification resistance of glass by barium monoxide, solve existing TFT-LCD base plate glass
Intensity and hardness are not enough, while replacing the compositions such as PbO, As2O3 or Sb2O3 by tin oxide, and then solve existing TFT-LCD
Environmental protection standard is not met with base plate glass, the problem of causing to reclaim difficulty and can not recycle.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
A kind of environmentally friendly base plate glass for TFT-LCD screens of embodiment, includes the raw material composition of following percentage by weight：
Silica 45-52%, alundum (Al2O3) 10-16%, zirconium dioxide 9-16%, magnesia 12-15%, barium monoxide 5-10%,
Tin oxide 8-14%, vanadic anhydride 15-22%, rare-earth oxide 7-15%.
The rare-earth oxide be lanthana, yittrium oxide, cerium oxide, samarium oxide, erbium oxide in two kinds or two kinds with
On composition.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
45%th, alundum (Al2O3) 16%, zirconium dioxide 9%, magnesia 12%, barium monoxide 5%, tin oxide 8%, vanadic anhydride
15%th, rare-earth oxide 7%.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
45-52%, alundum (Al2O3) 16%, zirconium dioxide 16%, magnesia 15%, barium monoxide 10%, tin oxide 8-14%, five oxidations
Two vanadium 22%, rare-earth oxide 15%.
A kind of environmentally friendly base plate glass for TFT-LCD screens, includes the raw material composition of following percentage by weight：Silica
48%th, alundum (Al2O3) 13%, zirconium dioxide 12%, magnesia 14%, barium monoxide 8%, tin oxide 10%, vanadic anhydride
18%th, rare-earth oxide 10%.
It is obvious to a person skilled in the art that the invention is not restricted to the details of the one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than the explanation is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Although not each moreover, it will be appreciated that the present specification is described in terms of embodiments
Embodiment is only comprising an independent technical scheme, and this narrating mode of specification is only this area for clarity
Technical staff should be using specification as an entirety, and the technical solutions in the various embodiments may also be suitably combined, forms this
Art personnel may be appreciated other embodiment.
Claims (5)
1. a kind of environmentally friendly base plate glass for TFT-LCD screens, it is characterised in that include the raw material group of following percentage by weight
Into：Silica 45-52%, alundum (Al2O3) 10-16%, zirconium dioxide 9-16%, magnesia 12-15%, barium monoxide 5-
10%th, tin oxide 8-14%, vanadic anhydride 15-22%, rare-earth oxide 7-15%.
2. a kind of environmentally friendly base plate glass for TFT-LCD screens according to claim 1, it is characterised in that：The rare earth
Metal oxide is two or more composition in lanthana, yittrium oxide, cerium oxide, samarium oxide, erbium oxide.
3. a kind of environmentally friendly base plate glass for TFT-LCD screens according to claim 1, it is characterised in that including following
The raw material composition of percentage by weight：Silica 45%, alundum (Al2O3) 16%, zirconium dioxide 9%, magnesia 12%, oxidation
Barium 5%, tin oxide 8%, vanadic anhydride 15%, rare-earth oxide 7%.
4. a kind of environmentally friendly base plate glass for TFT-LCD screens according to claim 1, it is characterised in that including following
The raw material composition of percentage by weight：Silica 45-52%, alundum (Al2O3) 16%, zirconium dioxide 16%, magnesia 15%,
Barium monoxide 10%, tin oxide 8-14%, vanadic anhydride 22%, rare-earth oxide 15%.
5. a kind of environmentally friendly base plate glass for TFT-LCD screens according to claim 1, it is characterised in that including following
The raw material composition of percentage by weight：Silica 48%, alundum (Al2O3) 13%, zirconium dioxide 12%, magnesia 14%, oxidation
Barium 8%, tin oxide 10%, vanadic anhydride 18%, rare-earth oxide 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354574.2A CN107311450A (en) | 2017-05-19 | 2017-05-19 | A kind of environmentally friendly base plate glass for TFT LCD screens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354574.2A CN107311450A (en) | 2017-05-19 | 2017-05-19 | A kind of environmentally friendly base plate glass for TFT LCD screens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107311450A true CN107311450A (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354574.2A Pending CN107311450A (en) | 2017-05-19 | 2017-05-19 | A kind of environmentally friendly base plate glass for TFT LCD screens |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651346A (en) * | 2004-02-06 | 2005-08-10 | 力诺集团有限责任公司 | Base plate glas for film transistor liquid crystal display |
| CN1653008A (en) * | 2002-05-15 | 2005-08-10 | 费罗公司 | Durable glass enamel composition |
| CN101062834A (en) * | 2007-05-15 | 2007-10-31 | 中国建筑材料科学研究总院 | LCD sheet glass |
| CN104326667A (en) * | 2013-12-31 | 2015-02-04 | 成都泰轶斯科技有限公司 | Raw material formula for boron-containing TFT-LCD substrate glass |
| CN106495468A (en) * | 2016-10-11 | 2017-03-15 | 武汉理工大学 | A kind of ultra-thin glass of low surface tension and preparation method thereof |
-
2017
- 2017-05-19 CN CN201710354574.2A patent/CN107311450A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1653008A (en) * | 2002-05-15 | 2005-08-10 | 费罗公司 | Durable glass enamel composition |
| CN1651346A (en) * | 2004-02-06 | 2005-08-10 | 力诺集团有限责任公司 | Base plate glas for film transistor liquid crystal display |
| CN101062834A (en) * | 2007-05-15 | 2007-10-31 | 中国建筑材料科学研究总院 | LCD sheet glass |
| CN104326667A (en) * | 2013-12-31 | 2015-02-04 | 成都泰轶斯科技有限公司 | Raw material formula for boron-containing TFT-LCD substrate glass |
| CN106495468A (en) * | 2016-10-11 | 2017-03-15 | 武汉理工大学 | A kind of ultra-thin glass of low surface tension and preparation method thereof |
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Application publication date: 20171103 |