CN105481247A - Composition for alumina silicate glass and alumina silicate glass and preparation method and application thereof - Google Patents
Composition for alumina silicate glass and alumina silicate glass and preparation method and application thereof Download PDFInfo
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- CN105481247A CN105481247A CN201511028257.9A CN201511028257A CN105481247A CN 105481247 A CN105481247 A CN 105481247A CN 201511028257 A CN201511028257 A CN 201511028257A CN 105481247 A CN105481247 A CN 105481247A
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- alumina silicate
- silicate glass
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- glass
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- 239000000203 mixture Substances 0.000 title claims abstract description 66
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000005368 silicate glass Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 28
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 abstract description 46
- 239000005357 flat glass Substances 0.000 abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910011255 B2O3 Inorganic materials 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 1
- 239000011734 sodium Substances 0.000 description 20
- 238000005342 ion exchange Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 238000004031 devitrification Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- XGCTUKUCGUNZDN-UHFFFAOYSA-N [B].O=O Chemical compound [B].O=O XGCTUKUCGUNZDN-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052728 basic metal Inorganic materials 0.000 description 2
- 150000003818 basic metals Chemical class 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002419 bulk glass Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- LBZRRXXISSKCHV-UHFFFAOYSA-N [B].[O] Chemical group [B].[O] LBZRRXXISSKCHV-UHFFFAOYSA-N 0.000 description 1
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001450 anions Chemical group 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 oxonium ion Chemical class 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
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
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
Landscapes
- 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)
- Glass Compositions (AREA)
Abstract
The invention relates to the field of glass, and discloses a composition for alumina silicate glass and the alumina silicate glass and a preparation method and application thereof. The composition for the alumina silicate glass is prepared from SiO2, Al2O3, B2O3, Na2O,K2O, MgO, ZnO and CeO2. According to the alumina silicate glass prepared from the composition for the alumina silicate glass, bubbles are few, the linear expansion coefficient is low (the linear expansion coefficient is 45*10<-7>-60*10<-7>/DEG C within the temperature range of 25 DEG C-300 DEG C), the chemical reinforcing property is excellent (the reinforced surface stress is 450 MPa-520 MPa, and the reinforced stress layer depth is 10-20 micrometers), and the application range of the alumina silicate glass can be greatly widened when the alumina silicate glass is applied to cover plate glass for display devices.
Description
Technical field
The present invention relates to glass art, particularly, relate to a kind of alumina silicate glass composition, alumina silicate glass and its preparation method and application.
Background technology
Along with the development of technique of display, the electronic products such as LCD TV, panel computer, mobile telephone, digital camera can see touch-screen.The main product of current touch-screen is capacitive touch screen.Often come in contact and rub in the use procedure of these display products, add casual delineation, touch, consequent cut directly causes that touch screen surface is coarse, smooth finish declines, and affects result of use, more likely causes screen to break.Glass is material indispensable in technique of display development always, can be improved the intensity of glass, make glass better be applied to the protection of display device by the composition of chemical tempering change glass surface.
But in currently available products, the coefficient of expansion of most of cover-plate glass as protection is higher (70 × 10
-7-90 × 10
-7/ DEG C between), the basic metal mainly owing to wherein containing makes the coefficient of expansion of glass increase, and causes it may inapplicable more low-expansion glasswork, thus the range of application of cover-plate glass is restricted.
Summary of the invention
The object of the invention is, in order to overcome above-mentioned defect of the prior art, to provide a kind of alumina silicate glass composition, alumina silicate glass and its preparation method and application.
The present inventor surprisingly finds under study for action, utilizes containing SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2alumina silicate glass composition prepare alumina silicate glass, the alumina silicate glass of low-expansion coefficient, suitable, the chemical enhanced excellent property of temperature of fusion can be prepared, during as protection cover-plate glass, can greatly expand its range of application.
Therefore, to achieve these goals, first aspect, the invention provides a kind of alumina silicate glass composition, said composition contains SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2.
Second aspect, the invention provides a kind of method preparing alumina silicate glass, and the method comprises carries out melting treatment, anneal, machining processes and chemical intensification treatment successively by alumina silicate glass composition of the present invention.
The third aspect, the invention provides the alumina silicate glass that aforesaid method prepares.
Fourth aspect, the invention provides alumina silicate glass composition of the present invention or the application in indicating meter prepared by alumina silicate glass.
Alumina silicate glass composition of the present invention contains SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2, wherein, B
2o
3although produce certain negative impact to ion-exchange effect, fragility and the coefficient of expansion of glass significantly can be reduced; Mg
2+ion is rare gas element configuration, and electronic cloud is not easy to distortion, and polarizability is little, Zn
2+ion outer electronic structure belongs to transition metal ion 18+2 type structure, Zn
2+out-shell electron more (18 electronics), electronic cloud is easily out of shape, and can increase its covalency composition, and reduce coordination and enter network structure by polarization, fight for the ability of oxonium ion more by force, O in such glass structure with organizer ion
2-to Na
+constraint reduce, Na
+be easy to and K
+exchange, one of the present invention preferred embodiment in, with the weight of said composition for benchmark, B
2o
3the content of content to be the content of 6-12wt%, MgO be 6-12wt%, ZnO be that interaction between 0.01-3wt%, MgO and ZnO can improve by B
2o
3the reduction of the ion-exchange effect caused, is conducive to ion-exchange effect when improving chemical intensification treatment; CeO
2introducing at high temperature can get rid of bubble in glass metal preferably, improve glass metal quality, be conducive to the lifting of glass good article rate.
Utilize the alumina silicate glass that alumina silicate glass composition of the present invention prepares, temperature of fusion suitable (1450-1600 DEG C), bubble is less, and linear expansivity is low, and (linear expansivity within the scope of 25-300 DEG C is 45 × 10
-7-60 × 10
-7/ DEG C), chemical enhanced excellent property (strengthening rear surface stress is 450-520MPa, and the stressor layers degree of depth is 10-20 μm), when being applied to display device cover-plate glass, can expand its range of application greatly.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
First aspect, the invention provides a kind of alumina silicate glass composition, said composition contains SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2.
In composition of the present invention, the present inventor finds under study for action further, with the weight of said composition for benchmark, and the SiO contained in composition
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2when being respectively 57-66wt%, 9-15wt%, 6-12wt%, 1.8-7wt%, 0.1-3wt%, 6-12wt%, 0.01-3wt%, 0.01-1wt%, the over-all properties (comprising low-expansion coefficient and excellent chemical enhanced performance) of the alumina silicate glass utilizing alumina silicate glass composition to prepare can be improved, make the linear expansivity of alumina silicate glass within the scope of 25-300 DEG C obtained be 45 × 10
-7-60 × 10
-7/ DEG C, surface stress is 450-520MPa, the stressor layers degree of depth is 10-20 μm.Therefore, under preferable case, with the weight of said composition for benchmark, SiO
2content be 57-66wt%, Al
2o
3content be 9-15wt%, B
2o
3content be 6-12wt%, Na
2the content of O is 1.8-7wt%, K
2the content of the content of O to be the content of 0.1-3wt%, MgO be 6-12wt%, ZnO is 0.01-3wt%, CeO
2content be 0.01-1wt%.
In composition of the present invention, SiO
2the composition forming glass skeleton, SiO
2the raising of content can improve glass machinery intensity, reduce the dielectric properties of glass, but the high temperature viscosity of glass is also increased.SiO
2content is lower, not easily forms glass, and strain point is declined, and the coefficient of expansion increases, and acid resistance declines, and alkali resistance declines.Consider the composite factors such as temperature of fusion, crystallization ceiling temperature, glass expansion coefficient, physical strength, therefore, with the weight of said composition for benchmark, SiO
2content be 57-66wt%, more preferably 59-62wt%.
In composition of the present invention, Al
2o
3contribute to the improvement of strain point, bending strength, to the strength of glass after the reason of chemical steel strength, there is good promoter action, when preparing alumina silicate glass, the non-bridging oxygen that basic metal is introduced and Al
3+form aluminum-oxygen tetrahedron, this volume ratio silicon-oxy tetrahedron large, in glass structure, produce larger gap, be conducive to ion-exchange, finally make chemical enhanced better effects if.But Al
2o
3too high levels, the easy crystallization of glass, is difficult to found.Therefore, consider, under preferable case, with the weight of said composition for benchmark, Al
2o
3content be 9-15wt%, more preferably 10-13wt%.
In composition of the present invention, B
2o
3can glass viscosity be reduced, increase intensity and the light transmission rate of glass.B exists with the form of boron oxygen trihedron, and can reduce the fragility of glass, boron oxygen fundamental unit and siloxy our unit can be coupled to the combination complex anion group more more complicated than boron oxygen group, boron atom can exist with planar design, make short texture, non-bridging oxygen quantity increases, but too high B
2o
3content is unfavorable for Na in follow-up glass reinforced process
+with K
+ion-exchange.Therefore, consider, under preferable case, with the weight of said composition for benchmark, B
2o
3content be 6-12wt%, more preferably 7-10wt%.
In composition of the present invention, Na
2o is the essential substance of ion-exchange, exchanged by the sodium ion in glass and the potassium ion in fused salt, the mutual switch of sodium ion in the potassium ion making radius larger and composition, just creates squeezing action at glass surface like this, thus reaches the effect improving strength of glass.Na
2o belongs to network outer body, plays fluxing action, glass melting temperature is reduced.Therefore, consider, under preferable case, with the weight of said composition for benchmark, Na
2the content of O is 1.8-7wt%, more preferably 3.5-6wt%.
In composition of the present invention, K
2o can reduce glass high temperature viscosity, and the meltbility of glass and plasticity are improved, and with Na
+during ion-exchange by mutual diffusion improve chemical enhanced in ion-exchange speed obtain required surface stress and deepen the thickness of stressor layers, glass devitrification resistance can also be improved.Therefore, consider, under preferable case, with the weight of said composition for benchmark, K
2the content of O is 0.1-3wt%, more preferably 1-2.5wt%.
In composition of the present invention, MgO can reduce glass melting temperature, is conducive to founding of glass, improve the stability of glass, suppress devitrification of glass tendency, improve Young's modulus, exceed a certain amount of, glass density and the coefficient of expansion can be caused to increase, make glass generation devitrification.Therefore, consider, under preferable case, with the weight of said composition for benchmark, the content of MgO is 6-12wt%, more preferably 8-10wt%.
In composition of the present invention, ZnO is in cyberspace, works the effect of gathering, can strengthen network structure to around silicon-oxy tetrahedron, improves strain point of glass chemical stability, improves chemically enhancing glass intensity simultaneously, increases ion-exchange speed and the degree of depth.Therefore, consider, under preferable case, with the weight of said composition for benchmark, the content of ZnO is 0.01-3wt%, more preferably 0.8-2wt%.
In composition of the present invention, CeO
2main performance oxidation clarification, and CeO
2environment-protecting asepsis, clarifying effect is excellent.Therefore, consider, under preferable case, with the weight of said composition for benchmark, CeO
2content be 0.01-1wt%, more preferably 0.5-0.8wt%.
In composition of the present invention, when utilizing it to prepare alumina silicate glass, alumina silicate glass why can be made to have excellent over-all properties, mainly give the credit to SiO in composition
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2between mating reaction, cooperatively interacting between each component of especially aforementioned certain content.
In composition of the present invention, under preferable case, with the weight of said composition for benchmark, SiO
2content be 59-62wt%, and/or
Al
2o
3content be 10-13wt%, and/or
B
2o
3content be 7-10wt%, and/or
Na
2the content of O is 3.5-6wt%, and/or
K
2the content of O is 1-2.5wt%, and/or
The content of MgO is 8-10wt%, and/or
The content of ZnO is 0.8-2wt%, and/or
CeO
2content be 0.5-0.8wt%.
Further preferably, with the weight of said composition for benchmark, SiO
2content be 59-62wt%, Al
2o
3content be 10-13wt%, B
2o
3content be 7-10wt%, Na
2the content of O is 3.5-6wt%, K
2the content of the content of O to be the content of 1-2.5wt%, MgO be 8-10wt%, ZnO is 0.8-2wt%, CeO
2content be 0.5-0.8wt%.
Second aspect, the invention provides a kind of method preparing alumina silicate glass, and the method comprises carries out melting treatment, anneal, machining processes and chemical intensification treatment successively by alumina silicate glass composition of the present invention.
In method of the present invention, the concrete restriction for alumina silicate glass composition refers to aforementioned corresponding contents and describes, and does not repeat them here.
In method of the present invention, under preferable case, the condition of melting treatment comprises: temperature is 1450-1600 DEG C, and the time is 8-12h.
In method of the present invention, under preferable case, the condition of anneal comprises: temperature is 500-600 DEG C, and the time is 0.5-2h.Anneal can be carried out, to obtain the glass with predetermined shape in (stainless steel cast iron) grinding tool with predetermined shape.
In method of the present invention, for machining processes, there is no particular limitation, can be the common various mechanical workout modes in this area, such as, can carry out for product anneal obtained cutting, grind, polishing etc.
In method of the present invention, under preferable case, the method for chemical intensification treatment comprises: product machining processes obtained is placed in the melting KNO of 400-450 DEG C
3middle process 4-7h.The product obtained by chemical intensification treatment is cooled to room temperature, namely obtains alumina silicate glass finished product by washed with de-ionized water post-drying.
The third aspect, the invention provides the alumina silicate glass that aforesaid method prepares.
Under preferable case, controlled by the content of each component of alumina silicate glass composition in aforementioned specific scope, the linear expansivity that can obtain within the scope of 25-300 DEG C is 45 × 10
-7-60 × 10
-7/ DEG C, surface stress is 450-520MPa, the stressor layers degree of depth is the alumina silicate glass of 10-20 μm.
Fourth aspect, the invention provides alumina silicate glass composition or the application in indicating meter prepared by alumina silicate glass.For indicating meter, there is no particular limitation, can be the common various indicating meters of electronics field, such as, can be the indicating meters such as LCD TV, panel computer, touch-screen mobile phone, particularly, may be used for preparing display device cover-plate glass.
Embodiment
Below will be described the present invention by embodiment.In following examples, if no special instructions, each material used is all by commercially available, and if no special instructions, method used is the ordinary method of this area.
In following examples and comparative example, density measures according to standard GB/T5432-2008, and unit is g/cm
3.
The expansion coefficient of glass thread of 25-300 DEG C measures according to standard A STME-228-2006, and unit is 10
-7/ DEG C.
Young's modulus measures according to standard GB/T7962, and unit is GPa.
Light transmission rate adopts ultraviolet-visible spectrophotometer to measure, and unit is %.
FSM-6000LE surface stress instrument is adopted to measure the surface stress (unit is MPa) of chemical enhanced rear glass and stressor layers thickness (unit be μm).
Embodiment 1-6
Weigh each component according to table 1 Suo Shi, mixing, pours into compound in platinum-rhodium crucible, then carries out melting and uses platinum rod to stir to discharge bubble.The glass metal melted is poured in stainless steel cast iron grinding tool, is configured as the both bulk glasses goods of regulation, then glasswork is annealed in the lehr, powered-down furnace cooling.Glasswork carried out cut, grind, polishing, glasswork polishing obtained puts into the melting KNO of 420 DEG C
3middle process different time, then takes out and cools, with washed with de-ionized water totally and dry, obtained alumina silicate glass finished product.Respectively the various performances of each alumina silicate glass finished product are measured, the results are shown in Table 1.
Table 1
Embodiment 7-12
Weigh each component according to table 2 Suo Shi, mixing, pours into compound in platinum-rhodium crucible, then carries out melting and uses platinum rod to stir to discharge bubble.The glass metal melted is poured in stainless steel cast iron grinding tool, is configured as the both bulk glasses goods of regulation, then glasswork is annealed in the lehr, powered-down furnace cooling.Glasswork carried out cut, grind, polishing, glasswork polishing obtained puts into the melting KNO of 440 DEG C
3middle process different time, then takes out and cools, with washed with de-ionized water totally and dry, obtained alumina silicate glass finished product.Respectively the various performances of each alumina silicate glass finished product are measured, the results are shown in Table 2.
Table 2
Comparative example 1-3
According to the method for embodiment 9, unlike, compound composition the results are shown in Table 3 with the performance measurement of the product obtained.
Table 3
Embodiment 9 is more known with the data of comparative example 1, utilize containing B
2o
3(simultaneously containing SiO
2, Al
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2) the alumina silicate glass prepared of alumina silicate glass composition, (linear expansivity within the scope of 25-300 DEG C is 45 × 10 to have significantly lower linear expansivity
-7-60 × 10
-7/ DEG C).
Embodiment 9 is more known with the data of comparative example 2, utilize containing MgO (simultaneously containing SiO
2, Al
2o
3, Na
2o, K
2o, B
2o
3, ZnO and CeO
2) the alumina silicate glass prepared of alumina silicate glass composition, (linear expansivity within the scope of 25-300 DEG C is 45 × 10 to have significantly lower linear expansivity
-7-60 × 10
-7/ DEG C), meanwhile, the introducing of MgO can also suppress devitrification of glass to be inclined to.
Embodiment 9 is more known with the data of comparative example 2, utilize containing ZnO (simultaneously containing SiO
2, Al
2o
3, Na
2o, K
2o, B
2o
3, MgO and CeO
2) the alumina silicate glass (interphase interaction of ZnO and MgO) prepared of alumina silicate glass composition, there is obviously more excellent chemical enhanced performance (strengthening rear surface stress is 450-520MPa, and the stressor layers degree of depth is 10-20 μm).
Utilization of the present invention contains SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2the alumina silicate glass prepared of alumina silicate glass composition, linear expansivity is low, and (linear expansivity within the scope of 25-300 DEG C is 45 × 10
-7-60 × 10
-7/ DEG C), chemical enhanced excellent property (strengthening rear surface stress is 450-520MPa, and the stressor layers degree of depth is 10-20 μm), when being applied to display device cover-plate glass, can expand its range of application greatly.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. an alumina silicate glass composition, is characterized in that, said composition contains SiO
2, Al
2o
3, B
2o
3, Na
2o, K
2o, MgO, ZnO and CeO
2.
2. composition according to claim 1, wherein, with the weight of said composition for benchmark, SiO
2content be 57-66wt%, Al
2o
3content be 9-15wt%, B
2o
3content be 6-12wt%, Na
2the content of O is 1.8-7wt%, K
2the content of the content of O to be the content of 0.1-3wt%, MgO be 6-12wt%, ZnO is 0.01-3wt%, CeO
2content be 0.01-1wt%.
3. composition according to claim 1, wherein, with the weight of said composition for benchmark, SiO
2content be 59-62wt%, and/or
Al
2o
3content be 10-13wt%, and/or
B
2o
3content be 7-10wt%, and/or
Na
2the content of O is 3.5-6wt%, and/or
K
2the content of O is 1-2.5wt%, and/or
The content of MgO is 8-10wt%, and/or
The content of ZnO is 0.8-2wt%, and/or
CeO
2content be 0.5-0.8wt%.
4. composition according to claim 3, wherein, with the weight of said composition for benchmark, SiO
2content be 59-62wt%, Al
2o
3content be 10-13wt%, B
2o
3content be 7-10wt%, Na
2the content of O is 3.5-6wt%, K
2the content of the content of O to be the content of 1-2.5wt%, MgO be 8-10wt%, ZnO is 0.8-2wt%, CeO
2content be 0.5-0.8wt%.
5. prepare a method for alumina silicate glass, it is characterized in that, the method comprises carries out melting treatment, anneal, machining processes and chemical intensification treatment successively by the alumina silicate glass composition in claim 1-4 described in any one.
6. method according to claim 5, wherein, the method for described chemical intensification treatment comprises: product machining processes obtained is placed in the melting KNO of 400-450 DEG C
3middle process 4-7h.
7. the alumina silicate glass that the method described in claim 5 or 6 prepares.
8. alumina silicate glass according to claim 7, wherein, the linear expansivity of this alumina silicate glass within the scope of 25-300 DEG C is 45 × 10
-7-60 × 10
-7/ DEG C, surface stress is 450-520MPa, the stressor layers degree of depth is 10-20 μm.
9. the application in indicating meter prepared by the alumina silicate glass composition in claim 1-4 described in any one or the alumina silicate glass described in claim 7 or 8.
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| CN106673459A (en) * | 2016-12-21 | 2017-05-17 | 浙江大学 | Method for determining ideal chemical reinforcement process of high aluminosilicate glass and application thereof |
| CN107840570A (en) * | 2017-10-26 | 2018-03-27 | 中国南玻集团股份有限公司 | Alumina silicate glass and preparation method thereof, electronic equipment |
| CN109949871A (en) * | 2017-10-30 | 2019-06-28 | 清远南玻节能新材料有限公司 | The preparation method of alumina silicate glass chemical strengthening expansion rate calculation method and alumina silicate glass product |
| CN113845302A (en) * | 2021-08-05 | 2021-12-28 | 河北光兴半导体技术有限公司 | Composition for glass, aluminosilicate glass, preparation method and application of aluminosilicate glass, glass protection cover sheet and application of glass protection cover sheet |
| CN115925250A (en) * | 2023-01-19 | 2023-04-07 | 清远南玻节能新材料有限公司 | High-softening-point medium borosilicate glass, tempered glass, and preparation methods and applications thereof |
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| CN113845302A (en) * | 2021-08-05 | 2021-12-28 | 河北光兴半导体技术有限公司 | Composition for glass, aluminosilicate glass, preparation method and application of aluminosilicate glass, glass protection cover sheet and application of glass protection cover sheet |
| CN115925250A (en) * | 2023-01-19 | 2023-04-07 | 清远南玻节能新材料有限公司 | High-softening-point medium borosilicate glass, tempered glass, and preparation methods and applications thereof |
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