CN104276758A - Cover glass of touch screen capable of improving chemical tempering performance - Google Patents
Cover glass of touch screen capable of improving chemical tempering performance Download PDFInfo
- Publication number
- CN104276758A CN104276758A CN201310528624.6A CN201310528624A CN104276758A CN 104276758 A CN104276758 A CN 104276758A CN 201310528624 A CN201310528624 A CN 201310528624A CN 104276758 A CN104276758 A CN 104276758A
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- CN
- China
- Prior art keywords
- glass
- chemical tempering
- touch
- performance
- chemical
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Classifications
-
- 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
- C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
-
- 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
- C03C4/00—Compositions for glass with special properties
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- Chemical & Material Sciences (AREA)
- 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)
- Ceramic Engineering (AREA)
- Glass Compositions (AREA)
Abstract
The invention relates to cover glass of touch screen capable of improving the chemical tempering performance. The glass raw material is prepared from the following chemical components in percentage by weight: 55-65% of SiO2, 14-18% of Al2O3, 10-15% of Na2O, 0.01-1% of Li2O, 0.1-5% of B2O3 and 0.1-10% of P2O5. Based on 0.1-10% of P2O5, 0.01-1% of Li2O is added to further improve the chemical tempering performance and the melting performance of the glass, namely obtaining relatively high surface stress and a deep stress layer within a relatively short time at relatively low tempering temperatures. Moreover, the melting temperature of the glass is not higher than 1540 DEG C, and the cover glass is excellent in scratch resistance and can be used as protective glass of mobile phones, digital cameras, MP4, PDA, GPS navigators, flat televisions and the like with the touch screens.
Description
Technical field
The invention belongs to field of glass production technology, relate to a kind of formula being widely used in mobile phone, digital camera, MP4, PDA, GPS navigator and flat panel TV etc. and containing the cover-plate glass of touch-screen, specifically can improve the touch-screen cover-plate glass of chemical tempering performance.
Background technology
For development and the demand in current touch-screen market, the product containing touch effect gets more and more, for the cover-plate glass manufacturer in touch-screen industrial chain, and the chance of this individual beyond doubt improve effects.Touch-screen product major parts-cover-plate glass after chemical tempering, forms one deck stressor layers by former for ultra-thin glass on surface, and for playing protection and display effect to the surface of touch-control device, this just requires that glass has anti-scratch and adhesion strength.And affect glass chemistry toughening performance because have several aspect: the composition being first glass self is its basic reason; Next is chemical toughening process, has tempering time and tempering temperature; Finally the purity of tempering liquid.Most important in chemical tempering treating processes will carry out ion-exchange exactly, and ion-exchange carries out in certain temperature and time range, if the reason due to glass self makes, ion-exchange temperature is high, the time is long, so virtually just add the cost of cover-plate glass manufacturer, in order to reduce cover-plate glass production cost, and how set about changing the self structure of glass thus the chemical tempering performance improving glass is obviously the key of problem from glass self.
Summary of the invention
The object of the present invention is to provide a kind of touch-screen cover-plate glass improving chemical tempering performance, in the chemical composition of glass, with the addition of P
2o
5and Li
2o two oxides, setting about the self structure by changing glass from glass self, improve the chemical tempering performance of glass, achieves the object that within a short period of time obtains higher strength of glass and stressor layers thickness.
The technical solution used in the present invention is: a kind of touch-screen cover-plate glass improving chemical tempering performance, and in described frit, the mass percentage of each chemical composition is:
SiO
2 55-65%，
Al
2O
3 14-18%，
Na
2O 10-15%，
Li
2O 0.01-1%，
B
2O
3 0.1-5%，
P
2O
5 0.1-10%。
The invention has the beneficial effects as follows: in glass system, add P although all openly refer in declared patent document of Corning Incorporated and Schott AG
2o
5component, improve the efficiency of glass chemistry toughening, in Corning Incorporated's patent, do not add elemental lithium, although more but with the addition of elemental lithium addition in Schott AG's patent, because the glass containing elemental lithium is comparatively serious to refractory corrosion, this adds increased the production cost of glass.The present invention is containing P
2o
5basis on add the Li of 0.01-1%
2o improves chemical tempering performance and the melting properties of glass, and content is low, can not cause serious erosion, additionally reduce temperature of fusion to refractory materials.Moreover, because this glass formula is easy to form glass metal at a lower temperature, thus reduce the consumption of fuel etc., not only saved cost, and decreased the pollution to environment to a great extent; Also has the P contained in recipe ingredient of the present invention
2o
5the considered critical of its content makes the structural modification of this component uniqueness inside glass structure, thus can improve the chemical tempering performance of glass, makes glass bearing stress within a short period of time reach more than 700MPa, can reach the service requirements of product completely.
Embodiment
Improve a touch-screen cover-plate glass for chemical tempering performance, in described frit, the mass percentage of each chemical composition is:
SiO
2 55-65%，
Al
2O
3 14-18%，
Na
2O 10-15%，
Li
2O 0.01-1%，
B
2O
3 0.1-5%，
P
2O
5 0.1-10%。
Preferably, SiO
2mass percentage be 57-63%.
Preferably, Al
2o
3mass percentage be 15-17%.
Preferably, Na
2the mass percentage of O is 12-14%.
Preferably, Li
2the mass percentage of O is 0.2-0.8%.
Preferably, B
2o
3mass percentage be 1.5-4.5%.
Preferably, P
2o
5mass percentage be 2-8%.
During concrete enforcement: weigh each component according to the formula provided in table 1, table 2, abundant mixing, again compound is poured in platinum-rhodium crucible, 3-6h is incubated at 1450-1540 DEG C, then the glass metal melted is cooled to shaping required temperature range, eliminates the stress in glass sample by annealing, then after simple processing treatment is carried out to shaping glass sample, carry out chemical tempering process, the surface stress of glass and stressor layers thickness after test chemical tempering.
The chemical tempering process of glass the glass sample that grinding and polishing is good is placed in the pure KNO of 350-450 DEG C
3in molten chemical forced fluid, make the Na in glass
+ion and Li
+k in ion and fused solution
+ion carries out ion-exchange, forms one deck stressor layers at glass surface, thus reaches strengthened effect.
Table 1
Table 2
In the present invention, SiO
2be the required composition forming glass skeleton, its content influence endurance and the physical strength of glass, still can have an impact to the density of glass in addition.Content is higher, and chemical resistant properties and the physical strength of glass are higher, and on the other hand, put forward full-bodied tendency owing to having, content is too high, increases the high temperature viscosity of glass, makes glass be difficult to fusing.SiO of the present invention
2content is between 55-65%, preferably between 57-63%.
Al
2o
3be the neccessary composition improving chemical durability of glass, also can promote the ion-exchange speed of chemical tempering, improve chemical enhanced characteristic.The glass that its content is high, the bearing stress after chemical enhanced is higher, and stressor layers is thicker.The present invention introduces the Al of 14-18%
2o
3, lower than this scope chemical tempering DeGrain, significantly raise higher than this scope liquidus temperature, be unfavorable for shaping, need the suitable content of adjustment to obtain applicable shaping viscosity, Al
2o
3preferably 15-17%.
Li
2o and Na
2o is the main exchange ion in chemical tempering treating processes, simultaneously containing Li
2o and Na
2the glass of O due to mixed alkali effect temperature of fusion lower, temperature of fusion is not higher than 1540 DEG C, but Na
2when O content is higher, the mechanical property of glass can be reduced, Li
2when O content is higher, the erosive velocity of kiln refractory materials can be increased.So select the Li introducing 0.01-1%
2the Na of O and 10-15%
2o, the preferably Li of 0.2-0.8%
2the Na of O and 12-14%
2o.
This patent introduces a certain amount of B
2o
3mainly reduce high temperature viscosity, but also mechanical property and the chemical tempering effect of glass can be improved, at use B
2o
3time also to consider " boron unusual " phenomenon, so this patent introduces the B of 0.1-5%
2o
3, the preferably B of 1.5-4.5%
2o
3.
A certain amount of P is introduced in glass
2o
5, glass ion exchange velocity will be accelerated, significantly can also reduce the temperature of fusion of glass in addition.This patent introduces the P of 0.1-10%
2o
5, the preferably P of 2-8%
2o
5.
As can be seen from table 1, table 2, can be proved again by each embodiment: the glass substrate produced by means of glass ingredient principle provided by the invention can reach following technical indicator after testing: adopt pure KNO
3fused solution, as chemical enhanced liquid, carries out chemical intensification treatment to glass material of the present invention, and chemical tempering temperature is 350-450 DEG C, and the tempering time is 2-8h, and the glass that the present invention relates to can obtain darker stressor layers in a short period of time.
Claims (7)
1. can improve a touch-screen cover-plate glass for chemical tempering performance, it is characterized in that: in described frit, the mass percentage of each chemical composition is:
SiO
2 55-65%，
Al
2O
3 14-18%，
Na
2O 10-15%，
Li
2O 0.01-1%，
B
2O
3 0.1-5%，
P
2O
5 0.1-10%。
2. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: SiO
2mass percentage be 57-63%.
3. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: Al
2o
3mass percentage be 15-17%.
4. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: Na
2the mass percentage of O is 12-14%.
5. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: Li
2the mass percentage of O is 0.2-0.8%.
6. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: B
2o
3mass percentage be 1.5-4.5%.
7. a kind of touch-screen cover-plate glass improving chemical tempering performance according to claim 1, is characterized in that: P
2o
5mass percentage be 2-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528624.6A CN104276758A (en) | 2013-10-31 | 2013-10-31 | Cover glass of touch screen capable of improving chemical tempering performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528624.6A CN104276758A (en) | 2013-10-31 | 2013-10-31 | Cover glass of touch screen capable of improving chemical tempering performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104276758A true CN104276758A (en) | 2015-01-14 |
Family
ID=52252171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310528624.6A Pending CN104276758A (en) | 2013-10-31 | 2013-10-31 | Cover glass of touch screen capable of improving chemical tempering performance |
Country Status (1)
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|---|---|
| CN (1) | CN104276758A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830675A (en) * | 2017-01-24 | 2017-06-13 | 东旭科技集团有限公司 | A kind of glass composition, alkali silicate glass and its preparation method and application |
| CN107298527A (en) * | 2017-07-11 | 2017-10-27 | 中国南玻集团股份有限公司 | A kind of high lead glass and its intensifying method |
| WO2020177271A1 (en) * | 2019-03-07 | 2020-09-10 | 科立视材料科技有限公司 | Lithium-containing glass having low softening point |
| CN112110645A (en) * | 2020-09-23 | 2020-12-22 | 成都光明光电股份有限公司 | Glass, glass product and manufacturing method thereof |
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| JP2000007372A (en) * | 1998-06-19 | 2000-01-11 | Asahi Techno Glass Corp | Glass for chemical tempering and glass base for magnetic recording medium |
| CN101454252A (en) * | 2006-05-25 | 2009-06-10 | 日本电气硝子株式会社 | Tempered glass and process for producing the same |
| CN101679105A (en) * | 2007-06-07 | 2010-03-24 | 日本电气硝子株式会社 | Hardened glass substrate, and method for production thereof |
| CN101772470A (en) * | 2007-08-03 | 2010-07-07 | 日本电气硝子株式会社 | Hardened glass substrate and method for manufacturing the same |
| CN102099308A (en) * | 2009-01-21 | 2011-06-15 | 日本电气硝子株式会社 | Reinforced glass and glass |
| CN102167509A (en) * | 2010-02-26 | 2011-08-31 | 肖特玻璃科技(苏州)有限公司 | Chemical toughened glass capable of carrying out subsequent cutting |
| CN102690059A (en) * | 2011-03-23 | 2012-09-26 | 肖特玻璃科技(苏州)有限公司 | Aluminosilicate glass for chemical tempering and glass ceramics |
| CN102690057A (en) * | 2012-04-10 | 2012-09-26 | 东旭集团有限公司 | Glass formula used for new touch screen cover plate glass |
| CN102985382A (en) * | 2010-07-12 | 2013-03-20 | 日本电气硝子株式会社 | Glass plate |
-
2013
- 2013-10-31 CN CN201310528624.6A patent/CN104276758A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000007372A (en) * | 1998-06-19 | 2000-01-11 | Asahi Techno Glass Corp | Glass for chemical tempering and glass base for magnetic recording medium |
| CN101454252A (en) * | 2006-05-25 | 2009-06-10 | 日本电气硝子株式会社 | Tempered glass and process for producing the same |
| CN101679105A (en) * | 2007-06-07 | 2010-03-24 | 日本电气硝子株式会社 | Hardened glass substrate, and method for production thereof |
| CN101772470A (en) * | 2007-08-03 | 2010-07-07 | 日本电气硝子株式会社 | Hardened glass substrate and method for manufacturing the same |
| CN102099308A (en) * | 2009-01-21 | 2011-06-15 | 日本电气硝子株式会社 | Reinforced glass and glass |
| CN102167509A (en) * | 2010-02-26 | 2011-08-31 | 肖特玻璃科技(苏州)有限公司 | Chemical toughened glass capable of carrying out subsequent cutting |
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| CN102690059A (en) * | 2011-03-23 | 2012-09-26 | 肖特玻璃科技(苏州)有限公司 | Aluminosilicate glass for chemical tempering and glass ceramics |
| CN102690057A (en) * | 2012-04-10 | 2012-09-26 | 东旭集团有限公司 | Glass formula used for new touch screen cover plate glass |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106830675A (en) * | 2017-01-24 | 2017-06-13 | 东旭科技集团有限公司 | A kind of glass composition, alkali silicate glass and its preparation method and application |
| CN107298527A (en) * | 2017-07-11 | 2017-10-27 | 中国南玻集团股份有限公司 | A kind of high lead glass and its intensifying method |
| WO2020177271A1 (en) * | 2019-03-07 | 2020-09-10 | 科立视材料科技有限公司 | Lithium-containing glass having low softening point |
| CN112110645A (en) * | 2020-09-23 | 2020-12-22 | 成都光明光电股份有限公司 | Glass, glass product and manufacturing method thereof |
| CN112110645B (en) * | 2020-09-23 | 2022-04-15 | 成都光明光电股份有限公司 | Glass, glass product and manufacturing method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |
|
| RJ01 | Rejection of invention patent application after publication |