CN107365071B - Glass composition and preparation method and application thereof - Google Patents
Glass composition and preparation method and application thereof Download PDFInfo
- Publication number
- CN107365071B CN107365071B CN201710516257.6A CN201710516257A CN107365071B CN 107365071 B CN107365071 B CN 107365071B CN 201710516257 A CN201710516257 A CN 201710516257A CN 107365071 B CN107365071 B CN 107365071B
- Authority
- CN
- China
- Prior art keywords
- mol
- glass composition
- mgo
- glass
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 144
- 239000000203 mixture Substances 0.000 title claims abstract description 109
- 238000002360 preparation method Methods 0.000 title abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 23
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 23
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 17
- 238000005728 strengthening Methods 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 229910052681 coesite Inorganic materials 0.000 claims description 15
- 229910052906 cristobalite Inorganic materials 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- 229910052682 stishovite Inorganic materials 0.000 claims description 15
- 229910052905 tridymite Inorganic materials 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 14
- 238000000137 annealing Methods 0.000 claims description 8
- 238000003426 chemical strengthening reaction Methods 0.000 claims description 8
- 239000006025 fining agent Substances 0.000 claims description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 4
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical group O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 4
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 description 10
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 2
- 239000005347 annealed glass Substances 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000006058 strengthened glass Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 239000002310 Isopropyl citrate Substances 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009774 resonance method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005341 toughened glass Substances 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- 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
-
- 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
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
-
- 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
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Glass Compositions (AREA)
Abstract
The present disclosure discloses a glass composition, a method of making the same, and applications thereof; the glass composition comprises 66-72 mol% SiO based on the total mole number of the glass composition as 100%211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%; the disclosure also provides a preparation method of the glass composition and an application of the glass composition in preparing a touch screen. The glass composition disclosed by the disclosure has the advantages of short reinforcement time and good reinforcement effect in a same proportion, the reinforcement depth can reach 50 mu m when the glass composition is reinforced for 2 hours, the compressive stress after the reinforcement is not lower than 972MPa, and the Vickers hardness is not lower than 644Kgf/mm2The anti-falling capacity of the glass is improved, and the glass is not easy to lose transparency.
Description
Technical Field
The disclosure relates to the technical field of tempered glass, in particular to a glass composition and a preparation method and application thereof.
Background
Glass is always an indispensable material in the development of display technology, and with the development of display technology, the strength of glass can be improved by changing the composition of the surface of the glass through chemical strengthening, and the glass is more applied to the protection of display devices. At present, a tablet personal computer, a liquid crystal television, a mobile phone, a digital camera and the like are provided with a touch screen, and in the using process, the touch screen cover plate glass is easy to contact and rub, and in addition, the touch screen cover plate glass is carelessly scratched and touched, so that the generated scratch directly causes the surface roughness and the smoothness reduction of the touch screen, the using effect is influenced, and the screen is more likely to be cracked.
According to market demands, touch screen cover glass is gradually developing towards a better quality direction, and ultrathin glass with the thickness less than 1mm is widely applied. The high quality of the method is mainly embodied in the aspects of large surface stress, proper stress layer depth, heat resistance, thermal shock resistance, light weight, thinness, large size and the like. However, as the glass becomes thinner, the mechanical properties of the glass are also reduced, which greatly hinders the practical application of the glass in production. At present, the research progress on reducing toughness and brittleness is still poor, no breakthrough progress is made, and the damage of the touch screen cover plate glass is caused by insufficient damage resistance.
Therefore, a glass composition which has good mechanical properties after being strengthened, is resistant to damage and falling and can be prepared into high-performance touch screen cover glass is needed.
Disclosure of Invention
The purpose of the disclosure is to provide a glass composition formula, and the glass prepared by the glass composition formula is suitable for chemical strengthening, and has good mechanical properties after strengthening, and is resistant to damage and falling.
To achieve the above object, the present disclosure provides a glass composition comprising 66 to 72 mol% of SiO, based on 100% of the total molar number of the glass composition211-13 mol% Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
Wherein, SiO2Is the framework of glass, and the structural units of silicon-oxygen tetrahedron form an irregular continuous network. It can improve the mechanical strength, chemical stability, thermal stability and the like of the glass, but is difficult to melt, and the viscosity of the glass is increased due to the over-high content, and the glass is devitrified, difficult to form, difficult to homogenize and the like, so the suitable content of the SiO2 is 66-72 mol%.
Al2O3Al in a certain content range as a component for forming a glass skeleton2O3And SiO2The glass network main body is formed together, the mechanical strength and the chemical stability of the glass are greatly improved, the glass also plays an important role in ion exchange, and the diffusion speed of alkali metal ions can be accelerated. But too high Al2O3Make glass melting difficult, so Al2O3Is suitably present in an amount of from 11 to 13 mole%.
MgO and CaO are network exo-oxides, can improve the chemical stability and mechanical strength of the glass, and have the functions of reducing high-temperature viscosity and increasing low-temperature viscosity, so that the glass is easier to melt. MgO can reduce the crystallization tendency and the crystallization speed, increase the toughness of the glass, inhibit the increase of brittleness of the glass, have no effect when the content is too low, and increase the devitrification of the glass when the content is too high. However, excessive CaO content increases the brittleness of the glass, which is disadvantageous for the exchange of potassium and sodium ions. Therefore, the content of MgO + CaO is suitably 1.5-3%, wherein the content of MgO should not be less than 1.5%.
Na2O and K2O is an extranet oxide, which is a silicon-oxygen tetrahedron [ SiO4]The formed network is relaxed and broken, thereby solving the problem of SiO2The problem of difficulty in melting is that the flux acts to lower the melting temperature of the glass and acts to lower the melting temperature of the glass. On the other hand, in the glass strengthening process, Na2O also plays an important role, and Na is used because when the content is too low, the chemical strengthening strength is low, and when the content is too high, the chemical resistance of the glass is lowered, etc2The O content is suitably from 14 to 20 mol%. K2O can reduce the crystallization tendency of the glass and increase the transparency and the luster of the glass, but is not beneficial to the exchange of potassium and sodium ions along with the increase of the content, K2The O content is suitably from 0.5 to 1 mol%.
V2O5Can be used as a forming body of a glass network and can also be used as a network outer body, and relatively complex influence is generated on glass and the structure thereof. It can reduce the crystallization of glass, lower the melting temperature of glass, raise the chemical toughening speed of glass, increase the toughening depth and raise the toughening effect, so that V2O5Suitably in an amount of from 0.6 to 2 mole%.
The present disclosure also provides a method for preparing a glass composition, which comprises mixing the raw materials of the glass composition under heating conditions, melting, homogenizing, casting, and annealing, wherein the glass composition comprises 66 to 72 mol% of SiO based on 100% of the total molar number of the glass composition211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O3Wherein the content of MgO is not less than 1.5 mol%.
The present disclosure also provides a glass composition prepared by the preparation method described above.
The present disclosure also provides for the use of a glass composition as described above in the preparation of a touch screen.
The present disclosure also provides a touch screen device using the glass composition as described above.
Through the technical scheme, the glass composition provided by the disclosure has the advantages of short strengthening time and good strengthening effect in comparison with the prior art, and is strong in strength in 2hThe depth of the film can reach 50 μm, the compressive stress after strengthening is not lower than 972MPa, and the Vickers hardness is not lower than 644Kgf/mm2The anti-falling capacity of the glass is improved, and the glass is not easy to lose transparency.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present disclosure. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, without going to the contrary, the density of the glass composition is according to GB/T7962.15-2010 colorless optical glass test method part 20: density "was measured using the Archimedes method.
In the present disclosure, without being stated to the contrary, the young's modulus of the glass composition is according to GB/T7962.15-2010 colorless optical glass test method part 6: young's modulus, shear modulus and Poisson's ratio were measured by resonance method.
In the present disclosure, the strain point (10) of the glass composition is not stated to the contrary14.5dpa s) was measured using a bending beam high temperature viscometer with reference to astm c-336 standard in degrees c.
In the present disclosure, the melting temperature (10) of the glass composition is not stated to the contrary2dpa · s) was determined using a cartridge rotary high temperature viscometer with reference to astm c-965 in c.
In the present disclosure, without being stated to the contrary, the Vickers hardness of the glass composition is measured using an automatic turret digital display microhardness tester according to the standard ASTM E-384, with the unit of Kgf/mm2。
In the present disclosure, the transmittance of the glass composition is measured according to GB/T5433-.
In the present disclosure, the glass composition is not stated to the contraryThe chemical stability of (A) is calculated as the loss of the glass composition in g/cm at 24 ℃ in 10% HF for 20min2。
In the present disclosure, without being explained to the contrary, the compressive stress and the strengthening depth of the glass composition are measured according to GB/T18144-.
In a first aspect, the present disclosure provides a glass composition comprising 66-72 mol% SiO, based on 100% of the total number of moles of the glass composition211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
The components of the glass composition of the present disclosure have different effects and can interact with each other to obtain suitable compositions and contents after multiple tests. The glass composition provided by the disclosure has short reinforcement time and good reinforcement effect in the same proportion, the reinforcement depth can reach 50 mu m when the glass composition is reinforced for 2 hours, the compressive stress after the reinforcement is not lower than 972MPa, and the Vickers hardness is not lower than 644Kgf/mm2The anti-falling capacity of the glass is improved, and the glass is not easy to lose transparency.
According to the first aspect of the present disclosure, in order to further improve the mechanical properties of the glass composition, a balance is struck between the parameters, preferably the glass composition comprises 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
According to the first aspect of the present disclosure, preferably, the glass composition is composed of 66 to 72 mol% of SiO, based on the total molar number of the glass composition being 100%211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5A composition wherein the content of MgO is not less than 1.5 mol%; more preferably, the glass composition consists of 66.5 to 71 mole percent SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
According to the first aspect of the present disclosure, in order to make the glass composition have a low high-temperature viscosity and less blisters when melted, the glass composition further contains 0.1 to 0.3 mol% of a fining agent, which is not particularly limited by the present disclosure, and various substances conventionally used by those skilled in the art may be used; preferably, the fining agent is selected from CeO2、SnO2、Sb2O3At least one of nitrate, sulfate, chloride and fluoride.
According to a first aspect of the present disclosure, the glass composition is suitable for a chemical strengthening process using KNO at 400-3The strengthening depth of the melt is 52-59 μm in 2 hours, the compressive stress is 972-996MPa, the Vickers hardness is 644-656Kgf/mm2。
In a second aspect, the present disclosure provides a method for preparing a glass composition, which comprises mixing glass composition raw materials, melting, homogenizing, casting, and annealing under heating, wherein the glass composition comprises 66 to 72 mol% of SiO based on 100% of the total molar amount of the glass composition211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
According to a second aspect of the present disclosure, in order to further improve the mechanical properties of the glass composition, a balance is struck between the parameters, the glass composition comprising 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
According to the second aspect of the present disclosure, preferably, the glass composition consists of 66-72 mol% SiO211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5A composition wherein the content of MgO is not less than 1.5 mol%; more preferably, the glass composition consists of 66.5 to 71 mole percent SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
According to the second aspect of the present disclosure, in order to make the glass composition have a low high temperature viscosity and less blisters when melted, the glass composition further contains 0.10 to 0.3 mol% of a fining agent, which may be a variety of substances conventionally used by those skilled in the art, and the present disclosure is not particularly limited thereto; preferably, the fining agent is selected from CeO2、SnO2、Sb2O3At least one of nitrate, sulfate, chloride and fluoride.
According to a second aspect of the present disclosure, the conditions of the melting include: the temperature is 1600-; the specific melting temperature and melting time can be determined by those skilled in the art according to practical circumstances.
According to a second aspect of the present disclosure, the annealing conditions include: the temperature is 620-660 ℃, and the time is 2-4 h; the specific annealing temperature and annealing time can be determined by one skilled in the art based on the actual circumstances.
The homogenization and cast molding may be performed by various methods conventionally used in the art; for example, the molten glass composition may be stirred to cause bubbles to escape, the components to be uniformly distributed, and the glass composition may be cast in a stainless steel mold, which is a conventionally used procedure and parameter in the art, and the present disclosure is not particularly limited thereto.
A third aspect of the present disclosure provides a glass composition produced by the production method as described above; the glass composition is suitable for processing, and the method of processing is not particularly limited in the present disclosure, and may be various processing methods conventionally used in the art, such as slicing, grinding, and chemical tempering.
A fourth aspect of the present disclosure provides a use of a glass composition as described above for the manufacture of a touch screen.
According to the fourth aspect of the present disclosure, the glass composition is chemically strengthened to improve mechanical properties when applied to the preparation of a touch screen. The chemical strengthening method may be various chemical strengthening methods conventionally used by those skilled in the art, and the present disclosure is not particularly limited thereto; preferably, the conditions for chemical strengthening include: the glass composition is strengthened in strengthening liquid for 2 to 6 hours at the temperature of 400-450 ℃; more preferably, the strengthening liquid is KNO3The melt does not need to be added with components for assisting reinforcement such as an accelerator, a protective agent and the like.
A fifth aspect of the present disclosure provides a touch screen device in which at least one glass layer uses the glass composition as described above.
According to the fifth aspect of the present disclosure, the glass composition has better mechanical properties, and can be prepared into a curved display screen.
The present invention will be described in further detail below with reference to examples.
Table 1 lists glass compositions described in the present disclosure and their physical properties (density, transmittance, coefficient of expansion, strain point, melting temperature, young's modulus, and chemical stability) as well as the mechanical properties after strengthening (compressive stress, depth of strengthening, and vickers hardness). The preparation method comprises the following steps: mixing the glass composition according to the proportion, putting the mixture into a platinum-rhodium crucible, heating at 1620 ℃ for 12h, and stirring and homogenizing by using a platinum stirring rod to obtain a glass composition melt; pouring the glass composition melt into a moldCasting and molding at a medium room temperature, and cooling to room temperature to obtain a cast glass composition workpiece; carrying out annealing treatment on the glass composition workpiece at 640 ℃ for 2h to obtain an annealed glass composition workpiece; KNO of the annealed glass composition workpiece at 420 ℃3Treating the molten glass for 2 hours to obtain a strengthened glass composition workpiece; the mechanical strength was measured using the strengthened glass composition workpiece as a sample.
TABLE 1
As can be seen from the comparison of the values of examples 1 to 18 and comparative examples 1 to 3 of the present disclosure, the glass provided by the present disclosure has a strengthening depth of 52 to 59 μm at 2h of strengthening, a compressive stress of 972MPa or more and a Vickers hardness of 644Kgf/mm or more2The glass has improved anti-falling ability, is not easy to devitrify, and is suitable for being used as cover plate glass of a touch screen.
In embodiments 8-14 of the present disclosure, the glass composition includes 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein, when the content of MgO is not less than 1.5 mol%, the strengthening depth is not less than 53 μm, and the individual embodiment can reach 59 μm; the compressive stress is not lower than 980MPa, and the individual embodiment can reach 992 MPa; vickers hardness of not less than 650Kgf/mm2In some embodiments, 659Kgf/mm can be achieved2(ii) a The parameters of the glass composition within the preferred ranges disclosed herein are within a preferred range and the balance of the parameters provides the glass composition with superior performance.
The preferred embodiments of the present disclosure have been described in detail above, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (21)
1. A glass composition comprising 66 to 72 mole percent SiO, based on 100 percent total moles of the glass composition211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
2. The glass composition of claim 1, wherein the glass composition comprises 66.5-71 mol% SiO, based on 100% total moles of the glass composition211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
3. The glass composition of claim 1, wherein the glass composition consists of 66-72 mol% SiO211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
4. The glass composition of claim 1, wherein the glass composition consists of 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
5. The glass composition of any of claims 1-4, wherein the glass composition further comprises 0.1 mol.% to 0.3 mol.% fining agent.
6. The glass composition of claim 5, wherein the fining agent is selected from CeO2、SnO2、Sb2O3At least one of nitrate, sulfate, chloride and fluoride.
7. The glass composition of any of claims 1-4, wherein the glass composition is strengthened for 2 hours to a strengthening depth of not less than 52 μ ι η, a compressive stress of not less than 972MPa, and a vickers hardness of not less than 644Kgf/mm2。
8. A method for preparing a glass composition, which comprises mixing the raw materials of the glass composition under heating conditions, melting, homogenizing, casting, and annealing, wherein the glass composition comprises 66 to 72 mol% of SiO based on 100% of the total mole number of the glass composition211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5WhereinThe content of MgO is not less than 1.5 mol%.
9. The method of claim 8, wherein the glass composition comprises 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
10. The method of claim 9 wherein the glass composition is comprised of 66-72 mol% SiO211-13 mol% of Al2O31.5-3 mol% of MgO + CaO, 14-20 mol% of Na2O, 0.5-1 mol% of K2O and 0.6-2 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
11. The method of claim 10, wherein the glass composition is comprised of 66.5-71 mol% SiO211.5 to 13 mol% of Al2O31.5-3 mol% of MgO + CaO, 15-18 mol% of Na2O, 0.5-0.8 mol% of K2O and 0.8-1.8 mol% of V2O5Wherein the content of MgO is not less than 1.5 mol%.
12. The method of any of claims 8-11, wherein the glass composition further comprises 0.1 to 0.3 mol.% fining agent.
13. The method of claim 12 wherein the fining agent is selected from CeO2、SnO2、Sb2O3At least one of nitrate, sulfate, chloride and fluoride.
14. The production method according to any one of claims 8 to 11, wherein the melting conditions include: the temperature is 1600 ℃ and 1620 ℃, and the time is 10-15 h.
15. The production method according to any one of claims 8 to 11, wherein the annealing condition includes: the temperature is 620-660 ℃, and the time is 2-4 h.
16. A glass composition produced by the production method according to any one of claims 8 to 15.
17. Use of a glass composition according to any one of claims 1 to 7 and claim 16 for the manufacture of a touch screen.
18. The use of claim 17, wherein the glass composition is chemically strengthened for touch screen applications.
19. The use of claim 18, wherein the conditions of chemical strengthening comprise: the glass composition is strengthened in a strengthening liquid for 2-6h at the temperature of 400-450 ℃.
20. Use according to claim 19, wherein the strengthening fluid is KNO3Melting the liquid.
21. A touch screen device wherein at least one glass layer comprises the glass composition of any one of claims 1-7 and claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516257.6A CN107365071B (en) | 2017-06-29 | 2017-06-29 | Glass composition and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516257.6A CN107365071B (en) | 2017-06-29 | 2017-06-29 | Glass composition and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107365071A CN107365071A (en) | 2017-11-21 |
| CN107365071B true CN107365071B (en) | 2020-01-03 |
Family
ID=60305736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710516257.6A Active CN107365071B (en) | 2017-06-29 | 2017-06-29 | Glass composition and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107365071B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150028786A (en) * | 2012-05-31 | 2015-03-16 | 코닝 인코포레이티드 | Ion exchangeable transition metal-containing glasses |
| CN104418504A (en) * | 2013-08-27 | 2015-03-18 | 科立视材料科技有限公司 | Glass composition for chemically enhanced alkali alumina silicate glass and manufacturing method of glass composition |
-
2017
- 2017-06-29 CN CN201710516257.6A patent/CN107365071B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107365071A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110615610B (en) | Lithium zirconium aluminosilicate glass, tempered glass and preparation method thereof and display device | |
| CN108585480B (en) | Two-step chemically strengthened alkali aluminosilicate glass composition and preparation method thereof | |
| JP5427278B2 (en) | Glass composition, glass obtained therefrom, and method and use of glass. | |
| TWI744530B (en) | Hybrid soda-lime silicate and aluminosilicate glass articles | |
| CN108503213B (en) | Aluminosilicate glass and tempered glass | |
| CN108726876B (en) | Ion-exchangeable aluminum opaque glass and method for making same | |
| WO2020239048A1 (en) | Alkali aluminosilicate glass, product thereof, strengthening method therefor, and application thereof | |
| WO2011103799A1 (en) | Thin li-al-si glass used for three dimension precise molding and suitable for strengthening | |
| TW201004886A (en) | Glass plate for display devices | |
| JP2010168233A (en) | Reinforced glass and glass | |
| JPWO2012043482A1 (en) | Chemically strengthened glass, chemically strengthened glass and glass plate for display device | |
| WO2010111850A1 (en) | Glass suitable for chemically toughening and chemically toughened glass | |
| JP2012214356A (en) | Cover glass and method for producing the same | |
| TWI671272B (en) | Glass composition for chemically strengthened alkali-aluminosilicate glass and method for the manufacture thereof | |
| CN108975688B (en) | Glass and preparation method thereof | |
| JP2018509366A (en) | Boron-free glass with low softening point and capable of high-speed ion exchange | |
| CN108706868A (en) | An aluminosilicate glass suitable for 3D molding with improved ion exchange properties | |
| JP5793256B1 (en) | Glass for chemical strengthening | |
| CN104326664A (en) | Aluminosilicate glass containing germanium oxide and gallium oxide | |
| CN110482855B (en) | Aluminosilicate glass and preparation method thereof | |
| CN104071980A (en) | Composition of touch protection glass | |
| CN104326666A (en) | Raw material formula of aluminosilicate glass protective cover plate used for display device | |
| CN107365071B (en) | Glass composition and preparation method and application thereof | |
| WO2020021933A1 (en) | Strengthened glass and glass for strengthening use | |
| CN103420610B (en) | glass substrate, glass plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190722 Address after: 115003 No. 19 Xincheng Street, Yingkou Coastal Industrial Base, Liaoning Province Applicant after: TUNGHSU (YINGKOU) PHOTOELECTRIC DISPLAY CO.,LTD. Applicant after: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Applicant after: TUNGHSU GROUP Co.,Ltd. Address before: The 100070 Beijing Seahawks Fengtai District Science City Road No. 9 Building No. 2 room 266 (Park) Applicant before: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Applicant before: TUNGHSU GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200407 Granted publication date: 20200103 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200609 Granted publication date: 20200103 |
|
| PD01 | Discharge of preservation of patent | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20171121 Assignee: Sichuan Gaosheng pharmaceutical packaging material technology Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: X2021990000507 Denomination of invention: The invention relates to a glass composition and a preparation method and application thereof Granted publication date: 20200103 License type: Common License Record date: 20210818 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230331 Address after: 100070 1112, 11 / F, 101, building 4, courtyard 2, sihezhuang Road, Fengtai District, Beijing Patentee after: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Patentee after: TUNGHSU GROUP Co.,Ltd. Address before: 115003 No.19 Xincheng street, coastal industrial base, Yingkou City, Liaoning Province Patentee before: TUNGHSU (YINGKOU) PHOTOELECTRIC DISPLAY CO.,LTD. Patentee before: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Patentee before: TUNGHSU GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A glass composition, its preparation method, and application Granted publication date: 20200103 Pledgee: Hengshui Bank Co.,Ltd. Pledgor: TUNGHSU GROUP Co.,Ltd.|TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Registration number: Y2024980031974 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |