CN116395956A - Sodium aluminum silicon glass, anti-dazzle glass, and preparation methods and applications thereof - Google Patents
Sodium aluminum silicon glass, anti-dazzle glass, and preparation methods and applications thereof Download PDFInfo
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- CN116395956A CN116395956A CN202310098027.8A CN202310098027A CN116395956A CN 116395956 A CN116395956 A CN 116395956A CN 202310098027 A CN202310098027 A CN 202310098027A CN 116395956 A CN116395956 A CN 116395956A
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- 239000011521 glass Substances 0.000 title claims abstract description 288
- -1 Sodium aluminum silicon Chemical compound 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims description 28
- 238000011282 treatment Methods 0.000 claims abstract description 127
- 238000000034 method Methods 0.000 claims abstract description 53
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 26
- 239000011734 sodium Substances 0.000 claims abstract description 22
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 96
- 230000003628 erosive effect Effects 0.000 claims description 69
- 239000000292 calcium oxide Substances 0.000 claims description 49
- 239000002253 acid Substances 0.000 claims description 43
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 42
- 238000005530 etching Methods 0.000 claims description 38
- 239000000395 magnesium oxide Substances 0.000 claims description 37
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 19
- 239000012043 crude product Substances 0.000 claims description 16
- 238000005498 polishing Methods 0.000 claims description 16
- 239000000047 product Substances 0.000 claims description 15
- 238000005554 pickling Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 10
- DNEHKUCSURWDGO-UHFFFAOYSA-N aluminum sodium Chemical compound [Na].[Al] DNEHKUCSURWDGO-UHFFFAOYSA-N 0.000 claims description 9
- 239000005368 silicate glass Substances 0.000 claims description 9
- 239000000429 sodium aluminium silicate Substances 0.000 claims description 9
- 235000012217 sodium aluminium silicate Nutrition 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 claims description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 5
- 235000003270 potassium fluoride Nutrition 0.000 claims description 5
- 239000011698 potassium fluoride Substances 0.000 claims description 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 5
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010348 incorporation Methods 0.000 claims description 3
- 229940115440 aluminum sodium silicate Drugs 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 46
- 230000003746 surface roughness Effects 0.000 abstract description 37
- 230000008569 process Effects 0.000 abstract description 32
- 230000003287 optical effect Effects 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 4
- 229910052796 boron Inorganic materials 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 58
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 42
- 239000000203 mixture Substances 0.000 description 35
- 238000012360 testing method Methods 0.000 description 28
- 230000000052 comparative effect Effects 0.000 description 19
- 238000010998 test method Methods 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 230000002829 reductive effect Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 15
- 239000013078 crystal Substances 0.000 description 11
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 8
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000005361 soda-lime glass Substances 0.000 description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 6
- 229910001950 potassium oxide Inorganic materials 0.000 description 6
- 229910052810 boron oxide Inorganic materials 0.000 description 5
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 5
- 229910001948 sodium oxide Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 229910001413 alkali metal ion Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000003090 exacerbative effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XGCTUKUCGUNZDN-UHFFFAOYSA-N [B].O=O Chemical compound [B].O=O XGCTUKUCGUNZDN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000001808 exosome Anatomy 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000006133 sodium aluminosilicate glass Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Glass Compositions (AREA)
Abstract
The application relates to sodium aluminum silicon glass, which comprises the following components in percentage by mass: 58% -70% of SiO 2 8 to 15 percent of Al 2 O 3 13% -18% of Na 2 O, 2.5-5.5% K 2 O,2 to 5.5 percent of MgO,0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 0 to 1.5 percent of B 2 O 3 The method comprises the steps of carrying out a first treatment on the surface of the Wherein, the following formulas are satisfied by the mass percentages of the components: 66% or less (SiO) 2 +Al 2 O 3 )‑(CaO+MgO)≤75％，85％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) is less than or equal to 115 percent. By fine tuning of individual oxide groupsThe proportion of the sodium aluminum silicon glass to the sodium aluminum silicon glass is reasonable, and the distribution gradient of the corrosion-resistant component and the corrosion-susceptible component of the sodium aluminum silicon glass is reasonable, so that the anti-dazzle glass with good optical performance is formed; the frosting treatment process flow is simple, the efficiency is high, and the pollution of the components of the frosting liquid is small; the antiglare glass has high transmittance and low haze, and also has excellent glossiness and extremely poor glossiness as well as surface roughness.
Description
Technical Field
The application relates to the technical field of anti-dazzle glass, in particular to sodium aluminum silicon glass, anti-dazzle glass and a preparation method and application thereof.
Background
With the popularization of electronic consumer products and large display screen application scenes, the requirement of large screen touch control and multi-screen interaction puts forward higher requirements on the optical performance of a display module. The glass adopted in the traditional technology has better light transmittance as an OLED cover plate, but the high-light surface of the glass is easy to generate glare, so that the eyes of a user are stimulated, and even safety risks can be brought in the fields of industrial production and transportation.
Disclosure of Invention
Based on this, one of the objects of the present application includes providing a soda-lime-silica glass capable of obtaining an antiglare glass having higher light transmittance and glossiness, extremely poor glossiness and less haze after a frosting treatment by adjusting the ratio between the respective oxide compositions. In addition, the application also provides anti-dazzle glass, a preparation method and application.
According to a first aspect of the application, sodium aluminum silicon glass is provided, which is characterized by comprising the following raw materials in percentage by mass: 58% -70% of SiO 2 8 to 15 percent of Al 2 O 3 13-18% of Na 2 O and 2.5 to 5.5 percent of K 2 O, 2 to 5.5 percent of MgO, 0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 And 0% to 1.5% of B 2 O 3 ；
Wherein the weight percentages of the components are as followsThe ratio is taken into calculation, and the following formula is satisfied: 66% or less (SiO) 2 +Al 2 O 3 )-(CaO+MgO)≤75％，85％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤115％。
In some embodiments, the sodium aluminum silicon glass is characterized by an erosion coefficient γ= (1.5×sio) calculated as the mass percent of the components 2 +CaO)/ln(Al 2 O 3 X 100), and γ ranges from 0.3 to 0.6.
In some embodiments, the soda-lime-silica glass, calculated as the mass percent of the components, satisfies one or more of the following characteristics (1) - (3):
(1)68.2％≤(SiO 2 +Al 2 O 3 )-(CaO+MgO)≤74％；
(2)89.8％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤112.4％；
(3) The erosion coefficient gamma ranges from 0.35 to 0.51.
In a second aspect of the present application, there is provided a method for preparing an antiglare glass, comprising the steps of:
placing the sodium aluminum silicate glass of the first aspect as a glass raw sheet in a first acid solution containing hydrofluoric acid for pre-etching treatment, and cleaning and drying after the pre-etching treatment;
placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 60-120 s;
and (3) placing the crude product subjected to frosting treatment in acid liquor without hydrofluoric acid for pickling treatment, and then performing post-polishing treatment on the crude product by second acid liquor with hydrofluoric acid, cleaning and drying.
In some embodiments, the frosting liquid contains 6-10 parts by weight of ammonium bifluoride, 4-6 parts by weight of potassium fluoride, 4-6 parts by weight of ammonium sulfate, 5-7 parts by weight of potassium sulfate, 2-5 parts by weight of hydrochloric acid, 1-2 parts by weight of sulfuric acid and 10-15 parts by weight of water.
In some embodiments, the preparation method satisfies one or more of the conditions (1) to (3):
(1) The first acid liquor containing hydrofluoric acid is prepared from 40-60 parts of 15g/mL hydrofluoric acid and 40-60 parts of 6g/mL sulfuric acid according to parts by weight;
(2) The acid liquor without hydrofluoric acid is prepared from 40-60 parts of 16g/mL sulfuric acid and 40-60 parts of 5g/mL hydrochloric acid according to parts by weight;
(3) The second acid liquor containing hydrofluoric acid is prepared from 40-60 parts of 15g/mL hydrofluoric acid and 40-60 parts of 6g/mL sulfuric acid according to parts by weight;
(4) The time of the pre-etching treatment is 5-20 s;
(5) The pickling treatment time is 2-7 min;
(6) The post-polishing treatment time is 7-14 min.
In some embodiments, the preparation method is carried over to calculate the erosion coefficient γ= (1.5×sio) as a mass percentage of the components 2 +CaO)/ln(Al 2 O 3 X 100), one of the following conditions (1) to (3) is also satisfied:
(1) When the value of the erosion coefficient gamma is 0.356-0.39, the frosting treatment time is 120 s+/-5 s;
(2) When the value of the erosion coefficient gamma is 0.391-0.45, the frosting treatment time is 90 s+/-4 s;
(3) When the value of the erosion coefficient gamma is 0.451-0.519, the time of the frosting treatment is 60 s+/-3 s.
In a third aspect of the present application, an antiglare glass is provided, and the antiglare glass is prepared by the preparation method in the second aspect.
In a fourth aspect, the present application provides a glass-containing article comprising a glass structure prepared using the antiglare glass of the third aspect.
In a fifth aspect of the application, the application of the anti-dazzle glass in the third aspect or the glass product in the fourth aspect in the preparation of display screens and curtain walls is provided.
According to the method, the proportion among the oxide compositions is finely adjusted, so that the surface of the sodium aluminum silicon glass has proper surface tension, the distribution gradient of erosion resistant components and erosion susceptible components is reasonable, the fusion thermodynamic barrier among the glass compositions is small, and the preparation of the anti-glare glass with good transmittance and anti-glare comprehensive performance is facilitated. When the glass is used for preparing anti-dazzle glass, the ion escape speed and the crystal precipitation speed on the surface of the glass can be balanced through the steps of pre-etching and etching, so that the surface of the glass can be uniformly corroded, the improvement of transmittance is facilitated, the fusion thermodynamic barrier between glass components is reduced, and the anti-dazzle glass with good optical performance is formed; the preparation method has simple flow, high efficiency and little pollution of the components of the frosting liquid; the anti-glare glass has high transmittance and low haze, and also has excellent glossiness and extremely poor glossiness and surface roughness parameters.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will follow. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Terminology
Unless otherwise indicated or contradicted, terms or phrases used herein have the following meanings:
herein, "preferred", "better", "preferred" are merely to describe better embodiments or examples, and it should be understood that they do not limit the scope of protection of the present application. If there are multiple "preferences" in a solution, if there is no particular description and there is no conflict or constraint, then each "preference" is independent of the others.
In this application, "further," "still further," "particularly," and the like are used for descriptive purposes and are not to be construed as limiting the scope of the present application.
In the application, the technical characteristics described in an open mode comprise a closed technical scheme composed of the listed characteristics and also comprise the open technical scheme of the listed characteristics.
In this application, reference is made to a value interval (i.e., a range of values), where the distribution of the values selected within the value interval is considered continuous, and includes two value endpoints (i.e., a minimum value and a maximum value) of the value interval, and each value between the two value endpoints, unless otherwise indicated. When a numerical range merely points to integers within the numerical range, unless expressly stated otherwise, both endpoints of the numerical range are inclusive of the integer between the two endpoints, and each integer between the two endpoints is equivalent to the integer directly recited. When multiple numerical ranges are provided to describe a feature or characteristic, the numerical ranges may be combined. In other words, unless otherwise indicated, the numerical ranges disclosed herein are to be understood as including any and all subranges subsumed therein. The "numerical value" in the numerical interval may be any quantitative value, such as a number, a percentage, a proportion, or the like. "numerical interval" allows to broadly include quantitative intervals such as percentage intervals, proportion intervals, ratio intervals, etc.
The temperature parameter in the present application is not particularly limited, and may be a constant temperature treatment or may vary within a predetermined temperature range. It should be appreciated that the constant temperature process described allows the temperature to fluctuate within the accuracy of the instrument control. Allows for fluctuations within a range such as + -5 ℃, + -4 ℃, + -3 ℃, + -2 ℃, + -1 ℃.
Sodium aluminum silicon glass: the sodium aluminum silicate glass in the application also contains other oxides, such as oxides of the first main group and the second main group, such as potassium oxide, magnesium oxide, calcium oxide, zirconium oxide, boron oxide and the like.
And (3) frosting: in the process of treating glass by using the frosting liquid, chemical reaction is carried out on the surface of the glass by using components in the frosting liquid in the frosting treatment process, so that corrosion is caused, and tiny pits are formed on the surface of the glass.
Anti-glare glass: the glass with the diffuse reflection effect on the surface can prevent reflected light from being dazzling.
Transmittance: the ratio of transmitted light energy to reflected light energy when light is incident perpendicular to the glass surface.
Gloss level: the degree to which the glass surface is close to specular.
Haze: when the light is incident perpendicular to the glass surface, the ratio of the transmitted light intensity to the incident light intensity is deviated from the incident light by more than 2.5 degrees.
Surface roughness: the maximum value of the distance of the raised or recessed portion of the surface with respect to the reference plane.
The antiglare glass in the conventional art often sacrifices transmittance in order to pursue excellent antiglare performance, and generally has a transmittance of less than 80%, a glossiness of less than 50%, and a haze of more than 20%. Such antiglare glass, while avoiding glare irritation to the eyes of the user, is unsatisfactory in transparency. With the increasing demands of personal electronic consumer products, business, industry and other fields on display effects, the conventional low-transmittance anti-dazzle glass cannot meet the application requirements.
Through a great deal of research, the sodium aluminum silicon glass, the anti-dazzle glass and the preparation method and the application thereof are found, and the problems can be well overcome. The obtained anti-dazzle glass product can achieve better anti-dazzle performance on the basis of ensuring that the transmittance is not greatly reduced.
According to the first aspect of the application, sodium aluminum silicon glass is provided, and the preparation raw materials comprise the following components in percentage by mass: 58% -70% of SiO 2 8 to 15 percent of Al 2 O 3 13-18% of Na 2 O and 2.5 to 5.5 percent of K 2 O, 2 to 5.5 percent of MgO, 0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 And 0% to 1.5% of B 2 O 3 ；
Wherein, the following formulas are satisfied by the mass percentages of the components: 66% or less (SiO) 2 +Al 2 O 3 )-(CaO+MgO)≤75％，85％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤115％。
According to the method, the proportion among the oxide compositions is finely adjusted, so that the surface of the sodium aluminum silicon glass has proper surface tension, the distribution gradient of erosion resistant components and erosion susceptible components is reasonable, the fusion thermodynamic barrier among the glass compositions is small, and the preparation of the anti-glare glass with good transmittance and anti-glare comprehensive performance is facilitated.
Silicon dioxide (SiO) 2 ) Is a main component for forming a glass skeleton, and the formed tetrahedral space network structure ensures that the glass has better strength, and the viscosity and the melting point of the glass are increased when the silicon dioxide content in the glass is increased. Silica may be etched with hydrofluoric acid and not with other commonly used dilute acids such as dilute hydrochloric acid, dilute sulfuric acid. The silicon dioxide content in the sodium aluminum silicon glass is controlled in a proper range, and the strength, the processing difficulty and the erosion resistance of the glass are greatly affected. If the silicon dioxide content in the sodium aluminum silicon glass is higher than the proper range, not only the viscosity and the melting point of the glass are higher, but also the composition ratio with better corrosion resistance is reduced, so that the corrosion resistance (mainly the characteristic of resisting the corrosion of hydrofluoric acid) of the glass is reduced; if the silica content in the soda-lime-silica glass is lower than the proper range, the production efficiency may be lowered due to the higher content of the erosion resistant component of the glass during the subsequent frosting treatment, and the strength and weather resistance of the glass may be poor.
In some embodiments, the sodium aluminum silicon glass comprises 58-70% of SiO by mass percent 2 The content of the catalyst may be 59-70%, 60-70%, or one or two of the following ranges: 58%, 58.5%, 59%, 59.5%, 60%, 60.5%, 61%61.5%, 62%, 62.5%, 63%, 63.5%, 64%, 64.5%, 65%, 65.5%, 66%, 66.5%, 67%, 67.5%, 68%, 68.5%, 69%, 69.5% or 70%.
Alumina is one of the important components of sodium aluminum silicon glass, and enters a glass structure network in a tetrahedral shape in the glass structure, so that the framework structure of the silica is supplemented. Alumina also improves the strength of the glass and the resistance to etching solutions. The silicon dioxide content in the sodium aluminum silicon glass is controlled in a proper range, so that the anti-dazzle glass with higher erosion efficiency and balanced anti-dazzle performance and light transmittance performance is obtained. If the alumina content in the sodium aluminum silicon glass is higher than the proper range, the glass is likely to be too high in viscosity and difficult to clarify, the melting quality is reduced, various performances of the glass are affected, and the frosting treatment efficiency is lower due to the excessively strong erosion resistance; if the alumina content in the sodium aluminum silicate glass is lower than the proper range, the erosion resistance in the subsequent frosting treatment process may be insufficient, the erosion process is too fast, difficult to control and easy to cause uneven erosion, so that better glossiness and surface roughness are difficult to obtain.
In some embodiments, the sodium aluminum silicon glass comprises 8 to 15 percent of Al by mass percent 2 O 3 Further, the content may be 8% to 14%, further 8% to 13%, and may be selected from the following ranges of one mass percentage or two: 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5% or 15%.
Sodium oxide and potassium oxide are both first main group metal oxides, also known as alkali metal oxides. Sodium oxide and potassium oxide can improve the processing performance of the glass; because of the different radii of the two alkali metal ions, the alkali metal ions are corroded by acid in the frosting treatment process, and the alkali metal ions are different from the components in the frosting liquid in ion exchange or precipitation rate of the corresponding cation crystals. The content of sodium oxide and potassium oxide in the sodium aluminum silicon glass is controlled in a proper range respectively, so that the processing performance of the glass is improved, and the anti-glare glass with good optical performance is easy to obtain after frosting treatment. If the content of sodium oxide in the sodium aluminum silicon glass is higher than the proper range, the erosion resistance of the glass may be deteriorated; while the content thereof in the sodium aluminosilicate is below a suitable range, on the one hand, the processability (such as the melting temperature) of the glass may be poor, and on the other hand, the efficiency during the frosting treatment may be lowered. The content of potassium oxide in sodium aluminosilicate has similar effect to sodium oxide, and if the content of potassium oxide in sodium aluminosilicate glass is higher, the glass may have poor meltability; if the content thereof in the soda-lime-silica glass is low, it may cause poor meltability of the glass.
In some embodiments, the sodium aluminum silicon glass comprises 13-18% of Na by mass percent 2 O can also be selected from the following one mass percent or two intervals: 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5% or 18%.
In some embodiments, the sodium aluminum silicon glass comprises 2.5 to 5.5 percent of K by mass percent 2 O can also be selected from the following one mass percent or two intervals: 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5.0%, 5.1%, 5.2%, 5.3%, 5.4% or 5.5%.
Both magnesium oxide and calcium oxide are second main group metal oxides, also known as alkaline earth metal oxides. Both magnesium oxide and calcium oxide can reduce the viscosity of the glass at high temperature and promote the melting and clarification of the glass; because magnesium oxide and calcium oxide belong to the network exosome, free oxygen can be provided, so that a glass network is cut off, a glass network structure becomes dispersed and is more easily corroded, and the corrosion resistance of the glass can be regulated. The magnesium oxide content in the sodium aluminum silicon glass is controlled in a proper range, so that the sodium aluminum silicon glass with moderate erosion resistance and high frosting treatment efficiency is obtained. If the content of magnesium oxide in the soda-lime-silica glass is higher than the proper range, it may be caused to be contained in the composition of the glass of the present application With ZrO 2 The crystal nucleus agent is easy to form magnesium aluminum silicon microcrystalline glass, and crystallization is caused; if the content of the sodium-aluminum-silicon glass is low, the sodium-aluminum-silicon glass can cause the sodium-aluminum-silicon glass to react with Na 2 O-K 2 The enhancement of the O-mixed alkali effect is reduced, and thus the erosion resistance is reduced.
In some embodiments, the sodium aluminum silicon glass comprises 2-5.5% of MgO according to the mass percent, and can be selected from the following one mass percent or two intervals: 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5.0%, 5.1%, 5.2%, 5.3%, 5.4% or 5.5%.
The calcium oxide is introduced into the sodium aluminosilicate, which is helpful for further reducing the viscosity of the glass at high temperature and promoting the melting and clarification of the glass. Since calcium oxide reduces the compactness of the glass network and is easy to react with HF, and the introduction of more calcium oxide may damage the erosion resistance of the glass, the calcium oxide content in the sodium aluminosilicate needs to be controlled in a proper range.
In some embodiments, the sodium aluminum silicon glass comprises 0-3% of CaO by mass percent, and can be selected from the following one mass percent or two intervals: 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9% or 3.0%.
The incorporation of zirconia in sodium aluminosilicate helps to further improve the weatherability and erosion resistance of the glass. But at the same time may increase the viscosity of the glass, resulting in poor uniformity and lower quality of the glass during the manufacturing process. Therefore, it is necessary to control the zirconia content in the sodium aluminosilicate to an appropriate range.
In some embodiments, a subject isThe sodium aluminum silicon glass comprises 0 to 1.5 percent of ZrO by mass percent 2 The composition may also be selected from the following one mass percent or two intervals: 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4% or 1.5%.
The incorporation of boron oxide in the sodium aluminosilicate helps to further reduce the viscosity of the glass at high temperatures. However, when the boron oxide is in a boron-oxygen triangle form at a higher content, the compactness of the glass network structure is reduced, and the corrosion resistance of the glass can be obviously reduced by introducing more boron oxide to influence the frosting process, so that the boron oxide content in the sodium aluminosilicate needs to be controlled in a proper range.
In some embodiments, the sodium aluminum silicon glass comprises 0 to 1.5 percent of B by mass percent 2 O can also be selected from the following one mass percent or two intervals: 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4% or 1.5%.
In some embodiments, the sodium aluminum silicon glass comprises 59-70% of SiO by mass percent 2 8 to 14 percent of Al 2 O 3 13-18% of Na 2 O and 2.5 to 5.5 percent of K 2 O, 2 to 5.5 percent of MgO,0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 And 0% to 1.5% of B 2 O 3 。
In some embodiments, the sodium aluminum silicon glass comprises 60 to 70 percent of SiO by mass percent 2 8 to 13 percent of Al 2 O 3 13-18% of Na 2 O and 2.5 to 5.5 percent of K 2 O, 2 to 5.5 percent of MgO, 0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 And 0% to 1.5% of B 2 O 3 。
In the application, the sodium aluminum silicon glass needs to be subjected to surface treatment including frosting treatment to obtain the anti-dazzle glass. In the surface treatment process comprising frosting treatment, acid liquor and acid in the frosting liquor act on the surface of the glass, so that the easily eroded components on the surface of the glass are dissolved out from the surface of the glass and escape into the frosting liquor; at the same time, after the concentration of the ions eluted from the glass and the concentration of the ions in the frosting liquid reach the upper limit of solubility, the corresponding ions form crystals with a specific composition and are precipitated on the surface of the glass.
Along with the progress of the frosting process, more and more insoluble matters are accumulated into granular crystals which firmly adhere to the surface, further reaction of acid etching is hindered, and uneven transparent surfaces are obtained by non-uniform etching. The frosting liquid or the frosting process may affect the unevenness of the frosting process, and when the unevenness is large, the unevenness is too large in extent, and may have a negative effect on the optical performance.
The applicant found that when the content of the composition in the soda-lime-silica glass satisfies a specific relationship, it is advantageous to obtain an anti-glare glass having a good glossiness. It is possible that at this point the glass has the proper surface tension and the resulting reaction product can break away from the glass surface at the proper rate to facilitate the process faster; the process has a leveling effect, namely when the surface state of the glass or the frosting agent is not sufficiently uniform, the step-by-step reaction mode ensures that the overall reaction speed and degree are controlled at relatively stable levels, and the glossiness consistency of the anti-dazzle glass is better.
In some embodiments, the sodium aluminum silicon glass is incorporated in the following formula in terms of mass percent of the components: 66% or less (SiO) 2 +Al 2 O 3 ) - (CaO+MgO) is not more than 75%, further the numerical range may be 66.5% to 74.5%, still further the range may be 68.2% to 74%.
The applicant has also found that when the content of the composition in the soda-lime-silica glass satisfies a specific relationship, it is advantageous to obtain an antiglare glass having a higher transmittance. The thermodynamic potential barrier of pit fusion generated on the surface of glass meeting the formula is smaller in the frosting treatment process, so that the fusion degree is larger, the pit depth of the pit is shallower, the light trapping structure is adopted, light rays can be reflected for two times or even multiple times, and the transmittance of the glass is increased.
In some embodiments, the sodium aluminum silicon glass is incorporated in the following formula in terms of mass percent of the components: 85% or less (Na) 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) is less than or equal to 115%, further the numerical range can be 88% -114%, and further the range can be 89.8% -112.4%.
Through a great deal of experiments, the applicant also finds that fine adjustment of part of the components in the sodium aluminum silicon glass is beneficial to obviously improving the efficiency of the frosting treatment of the sodium aluminum silicon glass and obtaining the anti-glare glass with better optical performance, and the relation of the components in the formula is defined as an erosion coefficient, namely an erosion coefficient gamma= (1.5 SiO) in the application 2 +CaO)/ln(Al 2 O 3 X 100). If the value of the erosion coefficient is higher than the proper range, the erosion resistance is lower, the erosion speed of the frosting liquid on the glass is higher, the control requirement on the frosting treatment process is higher, the glass product with good glossiness and surface roughness is not easy to obtain, and the anti-dazzle effect is poorer; if the erosion coefficient is lower than the proper range, the erosion resistance is lower, the erosion speed of the frosting liquid to the glass is slower, and the production efficiency is lower.
In some embodiments, the na-si glass has a value of the erosion coefficient γ in a range of 0.3 to 0.6, more preferably 0.32 to 0.55, still more preferably 0.35 to 0.51, and may be selected from one or two of the following ranges: 0.3, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.40, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.54, 0.55, or 0.56.
In some embodiments, the sodium aluminum silicon glass, calculated as the mass percent of the components, satisfies: 68.2 percent or less (SiO) 2 +Al 2 O 3 )-(CaO+MgO)≤74％。
In some embodiments, the sodium aluminum silicon glass, calculated as the mass percent of the components, satisfies: 89.8 percent or less (Na) 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤112.4％。
In some embodiments, the sodium aluminum silicon glass, calculated as the mass percent of the components, satisfies: the erosion coefficient gamma ranges from 0.35 to 0.51.
In some embodiments, the sodium aluminum silicon glass, calculated as the mass percent of the components, satisfies: 68.2 percent or less (SiO) 2 +Al 2 O 3 )-(CaO+MgO)≤74％，89.8％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) is less than or equal to 112.4 percent, and the erosion coefficient gamma is in the range of 0.35 to 0.51.
In a second aspect of the present application, a method for producing an antiglare glass is provided, which can produce an antiglare glass.
In some embodiments, the method for preparing the anti-glare glass comprises the following steps:
s100: placing the sodium aluminum silicate glass of the first aspect as a glass raw sheet in a first acid solution containing hydrofluoric acid for pre-etching treatment, and cleaning and drying after the pre-etching treatment;
s200: placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 60-120 s;
s300: and (3) placing the crude product subjected to frosting treatment in acid liquor without hydrofluoric acid for pickling treatment, and then performing post-polishing treatment on the crude product by second acid liquor with hydrofluoric acid, cleaning and drying.
In some embodiments, the method for preparing the anti-glare glass comprises the following steps:
S100: placing the sodium aluminum silicate glass of the first aspect as a glass raw sheet in a first acid solution containing hydrofluoric acid for pre-etching for a proper time, and cleaning and drying after the pre-etching;
s200: placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 60-120 s;
s300: and (3) placing the crude product subjected to frosting treatment in acid liquor without hydrofluoric acid for pickling treatment, and then performing post-polishing treatment on the crude product subjected to hydrofluoric acid for a proper time, cleaning and drying.
In some embodiments, the method for preparing the anti-glare glass comprises the following steps:
s100: placing the sodium aluminum silicate glass of the first aspect as a glass raw sheet in a first acid solution (hydrofluoric acid and dilute sulfuric acid with proper concentrations) containing hydrofluoric acid for pre-etching for proper time, and cleaning and drying after the pre-etching;
s200: placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 60-120 s;
s300: the crude product after frosting treatment is placed in acid liquor (dilute hydrochloric acid and dilute sulfuric acid with proper concentrations) without hydrofluoric acid for pickling treatment, and then is subjected to post-polishing treatment for proper time by second acid liquor (hydrofluoric acid and dilute sulfuric acid with proper concentrations) with hydrofluoric acid, and is cleaned and dried.
In the application, the glass raw sheet is pre-etched by using the acid liquor containing hydrofluoric acid, then frosted by using the frosting liquor, and then the anti-dazzle glass with better light transmittance, extremely poor glossiness, haze and roughness is prepared by acid washing treatment by using the acid liquor containing no hydrofluoric acid and post-polishing treatment process by using the acid liquor containing hydrofluoric acid. The process flow is simple, the treatment efficiency is high, the anti-dazzle glass product with excellent optical performance can be obtained by carrying out one-time frosting treatment on the pre-etching and frosting liquid and then matching with a simple pickling and post-polishing process, and the anti-dazzle glass with high glossiness (for example, more than or equal to 75%) can be obtained while the transparency is kept high (for example, more than or equal to 88%).
The thickness of the glass raw sheet is controlled in a proper range, which is favorable for obtaining anti-glare glass with better transparency. If the thickness of the glass sheet is higher than the proper range, the transmission path of light is longer, the absorption ratio of the light to the glass is increased, and the transmittance is lower when the glass subjected to frosting treatment is applied to a display screen; if the thickness of the glass raw sheet is lower than the proper range, the glass is more thinned (relative value) in the frosting treatment process, the thickness of the unetched part of the glass is insufficient, and the mechanical property of the anti-dazzle glass product is more reduced.
In some embodiments, in the preparation method, the thickness of the glass raw sheet is 0.5 to 1.0mm, further may be 0.6 to 0.9mm, further may be 0.6 to 0.8mm, and may be selected from the following thickness or two ranges: 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm or 1.0mm.
As previously mentioned, the applicant has also found that fine tuning of the partial composition of the soda-lime-silica glass, calculated as the mass percentages of the components, satisfies the following formula: corrosion coefficient γ= (1.5 SiO) 2 +CaO)/ln(Al 2 O 3 X 100), wherein γ is in the range of 0.3 to 0.6, the frosting treatment efficiency in the production of an antiglare glass is favorable, and an antiglare glass having good optical properties can be obtained, and the preferable range may be further 0.32 to 0.55, and more preferable range is 0.35 to 0.51.
When the erosion coefficient gamma is lower than the proper range, the glass possibly has stronger erosion resistance to active ingredients in the frosting liquid, such as hydrofluoric acid and the like, during the frosting treatment, the ingredients in the glass dissolve and separate from the surface of the glass slowly, and the specific gravity of the glass escaping into the frosting liquid due to erosion is smaller within the same time, so that the time for obtaining the required erosion depth is longer (for example, exceeds 3-5 min), and the production efficiency is reduced; at the same time, during prolonged erosion times, the crystal precipitates are continuously deposited on the surface of the glass, which is eroded to a lesser extent, possibly resulting in a hindrance to the further action of the glass surface and of the effective eroding components in the frosting liquid, which in turn results in a non-uniform deposition of the precipitates, which is manifested in a glass product with a very poor Δg (for example, possibly greater than 10%). When the erosion coefficient gamma is higher than the proper range, the glass is corroded by the frosting liquid with strong capability and high erosion efficiency, windows in the frosting treatment are shorter, the control requirement on the frosting treatment process is higher, and the quality control difficulty of the anti-dazzle glass is higher.
In some embodiments, in the preparation method, the frosting treatment time is 60 s-120 s, and may be selected from the following one time or two intervals: 60s, 65s, 70s, 75s, 80s, 85s, 90s, 95s, 100s, 105s, 110s, 115s, 120s.
Through a large number of experiments, the applicant also finds that when the erosion coefficient gamma is different in value, corresponding frosting treatment time with higher efficiency and better product performance exists. If the time of the frosting treatment deviates from the proper time, the glass may not be sufficiently corroded, the glossiness is higher (for example, higher than 90%), the haze is correspondingly lower (for example, lower than 5%), and the antiglare effect is poor; if the time of the frosting treatment deviates from the aforementioned suitable time, serious erosion of the glass surface may occur, and the transmittance is low (for example, lower than 85%).
In some embodiments, the method of preparation is carried over to the calculated erosion coefficient γ= (1.5×sio) in mass percent of the components 2 +CaO)/ln(Al 2 O 3 X 100), when the erosion coefficient gamma is 0.356-0.390, the frosting treatment time is 120s plus or minus 5s.
In some embodiments, in the preparation method, when the erosion coefficient γ has a value of 0.391-0.450, the duration of the frosting treatment is 90s±4s.
In some embodiments, in the preparation method, when the erosion coefficient γ has a value of 0.451 to 0.519, the duration of the frosting treatment is 60s±3s.
In the field of surface treatment of glass, a process of treating glass with a frosting paste, a frosting liquid, or the like is generally called a frosting process. In the present application, only the process of surface-treating soda-alumina-silica glass with a frosting liquid is referred to as a frosting treatment. The components of the frosting liquid are raw materials for preparing the frosting liquid, and the preparation process of the frosting liquid needs to mix and cure the components for a period of time to obtain the liquid frosting liquid.
In some embodiments, the frosting liquid contains 6-10 parts by weight of ammonium bifluoride, 4-6 parts by weight of potassium fluoride, 4-6 parts by weight of ammonium sulfate, 5-7 parts by weight of potassium sulfate, 2-5 parts by weight of hydrochloric acid, 1-2 parts by weight of sulfuric acid and 10-15 parts by weight of water.
In some embodiments, the frosting liquid contains 6-8 parts by weight of ammonium bifluoride, 4-5 parts by weight of potassium fluoride, 5-6 parts by weight of ammonium sulfate, 5-6 parts by weight of potassium sulfate, 2-3 parts by weight of hydrochloric acid, 1-2 parts by weight of sulfuric acid and 10-12 parts by weight of water.
In some embodiments, the frosting liquid contains 6 parts by weight of ammonium bifluoride, 4 parts by weight of potassium fluoride, 5 parts by weight of ammonium sulfate, 5 parts by weight of potassium sulfate, 2 parts by weight of hydrochloric acid, 1-2 parts by weight of sulfuric acid and 10 parts by weight of water.
As described above, the frosting liquid is prepared by mixing the above components in proportion, standing and aging for a period of time to obtain a liquid frosting liquid. The standing and ageing time is generally 10-30 min; mixing, standing and aging are carried out at room temperature (25 ℃ + -5).
The frosting liquid has simple composition, stable components, no need of heating and stirring and little pollution to the environment; the frosting liquid is used for the combination of frosting treatment and pre-etching, acid washing and polishing methods of the frosting treatment, and has higher surface treatment efficiency on sodium aluminum silicon glass.
In some embodiments, in the preparation method, the first acid solution containing hydrofluoric acid is prepared from 40 to 60 parts of 15g/mL hydrofluoric acid and 40 to 60 parts of 6g/mL sulfuric acid according to parts by weight.
In some embodiments, the acid solution without hydrofluoric acid is prepared from 40 to 60 parts of 16g/mL sulfuric acid and 40 to 60 parts of 5g/mL hydrochloric acid according to parts by weight.
In some embodiments, in the preparation method, the second acid solution containing hydrofluoric acid is prepared from 40 to 60 parts of 15g/mL hydrofluoric acid and 40 to 60 parts of 6g/mL sulfuric acid according to parts by weight.
In some embodiments, the method and composition of formulating the first acid comprising hydrofluoric acid and the second acid comprising hydrofluoric acid are the same.
In some embodiments, the first acid comprising hydrofluoric acid and the second acid comprising hydrofluoric acid are formulated differently in method and composition.
The pre-etching treatment is used for etching away the surface of the glass, so that defect parts such as scratches can be removed, and the frosting process can be smoothly carried out. If the time of the pre-etching treatment is lower than the proper range, the defect layer on the glass surface may not be completely eroded, and the subsequent etching process is affected; if the pre-etching time is higher than the proper range, the glass may be corroded too much, the final thickness is lower than the required range, and the mechanical properties of the glass product are also reduced.
In some embodiments, the duration of the pre-etching treatment is 5 to 20 seconds, more preferably 7 to 15 seconds, still more preferably 9 to 12 seconds.
The pickling treatment serves to wash off loosely packed crystals from the glass surface. If the pickling time is less than the proper range, loose crystals may not be sufficiently washed off, and the optical properties may be poor; if the pickling time is longer than the proper range, crystals that would otherwise adhere firmly to the surface are also washed away, resulting in poor frosting.
In some embodiments, in the preparation method, the time of the acid washing treatment is 2 to 7min, further may be 3 to 6min, and further may be 4 to 5min.
The post-polishing treatment is to make the uneven surface peak Gu Chazhi of the frosted glass smaller by the reaction of hydrofluoric acid and the surface, so as to obtain uniform and fine rough surface. If the post-polishing treatment time is lower than the proper range, the surface roughness of the glass is possibly too large, and the optical performance is deteriorated; if the post-polishing treatment time is higher than the proper range, the surface of the glass is possibly smooth and high, and the anti-dazzle effect is lost.
In some embodiments, in the preparation method, the post-polishing treatment time is 7-14 min, more preferably 8-13 min, still more preferably 10-12 min.
In some embodiments, in the preparation method, the pre-etching treatment time is 5-20 s, the acid washing treatment time is 2-7 min, and the post-polishing treatment time is 7-14 min.
In a third aspect of the present application, an antiglare glass is provided, and the antiglare glass is prepared by the preparation method in the second aspect.
The anti-dazzle glass has higher transmittance and smaller haze, and also has excellent glossiness, extremely poor glossiness and surface roughness parameters.
In some embodiments, the anti-glare glass has a surface roughness of 0.05 μm or less, and may be selected from one or two of the following surface roughness ranges: 0.005 μm, 0.01 μm, 0.02 μm, 0.03 μm, 0.032 μm, 0.035 μm, 0.036 μm, 0.038 μm, 0.039 μm, 0.04 μm, 0.041 μm, 0.042 μm, 0.045 μm, 0.046 μm, 0.047 μm, 0.048 μm, 0.049 μm, 0.05 μm, etc.
In a fourth aspect, the present application provides a glass-containing article comprising a glass structure prepared using the antiglare glass of the third aspect.
In a fifth aspect of the application, the application of the anti-dazzle glass in the third aspect or the glass product in the fourth aspect in the preparation of display screens and curtain walls is provided.
The anti-dazzle glass has good transparency and good display effect when being applied to the display field, and has good anti-dazzle performance, and the anti-dazzle glass is particularly characterized by higher glossiness, lower haze and smaller surface roughness.
In order that the invention may be more readily understood and put into practical effect, the following more particular examples and comparative examples are provided as reference.
Unless otherwise specified, the raw materials used in each of the following tests are commercially available and the performance test methods are as follows:
The testing method comprises the following steps:
the transmittance test method comprises the following steps: and testing by adopting an ultraviolet spectrophotometer, wherein the testing wavelength range is 380-780 nm.
The method for testing the glossiness comprises the following steps: the glossiness is tested by a glossiness meter, and the specific method is to use the glossiness meter for testing.
The method for testing and calculating the extremely poor glossiness comprises the following steps: uniformly dividing a rectangular sample into nine squares (namely, three equal and equal sides are equally divided); measuring the center point of each nine palace lattice three times, and taking an average value; the difference between the maximum value and the minimum value of the 9-point glossiness is the extremum.
Haze test method: the visible light transmittance and the haze are tested by adopting a haze meter, and the specific method is to test by adopting the haze meter.
The surface roughness test method comprises the following steps: the surface roughness is tested by a coarseness meter, and the specific method is to use the coarseness meter for testing.
Anti-glare properties: in the present application, the criteria for anti-glare performance are shown in the following table: when the glossiness, glossiness extremely poor, transmittance, haze, surface roughness satisfy the ranges in the following table, the antiglare property of the antiglare glass is considered to be "good", "acceptable" or "poor".
The following are specific examples.
Table 1 glass compositions of examples 1 to 10
TABLE 2 glass Properties of examples 1 to 10
Example 1
According to the composition of glass in Table 1, the corresponding batch is calculated and weighed based on 1400g of glass liquid, ground and mixed uniformly, then placed in a platinum crucible, the platinum crucible is placed in a lifting furnace, heated to 1580-1600 ℃, kept for 6 hours, cooled to 1550-1570 ℃, kept for 1 hour, poured into a rectangular graphite mould with the size of 200mm multiplied by 120mm and heated to 500-520 ℃, after hardening, transferred into an annealing furnace which is heated to 680-700 ℃, kept for 3 hours, and cooled to room temperature along with the furnace.
It was cut into 140mm by 70mm by 0.7mm sheets, double-sided polished, and CNC machined.
Next to this, the process is carried out,
putting sodium aluminum silicate glass serving as a glass raw sheet into a first acid solution containing hydrofluoric acid (the weight/volume ratio of 15% hydrofluoric acid to 6% dilute sulfuric acid is 1:1) for pre-etching treatment, and cleaning and drying after the pre-etching treatment;
placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 120s;
the crude product after frosting treatment is placed in acid liquor (the weight/volume ratio of 6% of dilute sulfuric acid to 5% of dilute hydrochloric acid is 1:1) without hydrofluoric acid for acid washing treatment, and then is subjected to post-polishing treatment of second acid liquor (the weight/volume ratio of 15% of hydrofluoric acid to 6% of dilute sulfuric acid is 1:1) with hydrofluoric acid, and is cleaned and dried.
And testing visible light transmittance and haze by using a haze meter, testing glossiness by using a glossiness meter, and testing surface roughness by using a roughness meter, wherein the obtained performance parameters are as follows:
the transmittance was 90.53%, the glossiness was 85.8%, the glossiness was 5%, the haze was 8.5%, and the surface roughness was 0.042 μm.
Example 2
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 2 was prepared in substantially the same manner as in example 1.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 91.2%, the gloss was 88.7%, the gloss was extremely poor at 4.5%, the haze was 9.1%, and the surface roughness was 0.05. Mu.m.
Example 3
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 3 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 60 seconds.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 88.95%, the gloss was 75.3%, the gloss was extremely poor at 4.6%, the haze was 12.5%, and the surface roughness was 0.036. Mu.m.
Example 4
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 4 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 89.97%, the glossiness was 79.5%, the glossiness was 3.8%, the haze was 10.4%, and the surface roughness was 0.045 μm.
Example 5
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 5 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 60 seconds.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 88.5%, the gloss was 84.3%, the gloss was extremely poor 3.8%, the haze was 11.8%, and the surface roughness was 0.041. Mu.m.
Example 6
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 6 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 90.12%, the glossiness was 81.2%, the glossiness was 2.9%, the haze was 10.7%, and the surface roughness was 0.039 μm.
Example 7
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 7 was prepared in substantially the same manner as in example 1.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 90.76%, the gloss was 77.8%, the gloss was extremely poor at 3.5%, the haze was 9.9%, and the surface roughness was 0.032. Mu.m.
Example 8
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 8 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 89.52%, the glossiness was 76.2%, the glossiness was 4%, the haze was 12%, and the surface roughness was 0.038 μm.
Example 9
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 9 was produced in substantially the same manner as in example 1, except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 88.96%, the gloss was 77.1%, the gloss was extremely poor at 3.7%, the haze was 11.6%, and the surface roughness was 0.046. Mu.m.
Example 10
Raw glass sheets were prepared according to the compositions of the glasses in table 1, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of example 10 was prepared in substantially the same manner as in example 1.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 90.41%, the gloss was 86.5%, the gloss was extremely poor at 4.3%, the haze was 9.3%, and the surface roughness was 0.042. Mu.m.
It can be seen that the transmittance of examples 1 to 10 is higher than 88%, and the method can be used for display screens; the surface roughness of the glass is 0.05 mu m or less, which shows that the frosting uniformity is better. Meanwhile, the haze range is 8.5% -12.5%, and the glossiness range is 75.3% -86.5%. The glass can select different anti-dazzle effects to adapt to different scenes while keeping high transmittance.
Table 3 glass compositions of comparative examples 1 to 7
Table 4 glass Properties of comparative examples 1 to 6
Comparative example 1
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 1 was produced in substantially the same manner as in example 1 except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 88.45%, the glossiness was 76.6%, the glossiness was 10.8% or more and 10%, the haze was 14.5% or more and 13%, and the surface roughness was 0.048 μm.
Possible reasons are (SiO 2 +Al 2 O 3 ) - (cao+mgo) value was 65.3, lower than 66; (Na) 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) of 144, above 115, which causes the surface tension of the glass to exceed a proper range, further aggravates the instability of the frosting process and adversely affects the glossiness of the anti-glare glass; erosion coefficient γ=0.01× (1.5 SiO 2 +CaO)/ln(Al 2 O 3 ) The actual frosting treatment time was 90s, and although γ was in the range of 0.3 to 0.6, it was deviated from the preferred frosting treatment time by 120 s.+ -. 5s, resulting in poor uniformity during the frosting treatment, extremely poor optical degree and deteriorated haze performance.
Comparative example 2
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 2 was produced in substantially the same manner as in example 1 except that the frosting treatment was carried out for 90s.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 90.12%, the glossiness was 83.5%, the glossiness was 11.5% to more than 10%, the haze was 6.7% to less than 7%, and the surface roughness was 0.039 μm.
The reason may be (SiO 2 +Al 2 O 3 ) The value of- (CaO + MgO) is 75.7, above 74, more reaction products with less solubility are obtained during etching, resulting in no further erosion of the coating, an increased degree of non-uniformity of erosion, a matt glass surface, a very poor gloss and a deteriorated haze performance.
Comparative example 3
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 3 was produced in substantially the same manner as in example 1 except that the frosting treatment was carried out for 60 seconds.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
The transmittance is 84.81% less than 85%, the glossiness is 82.8%, the glossiness is extremely poor 4.8%, the haze is 9.2%, and the surface roughness is 0.071 μm more than 0.5 μm.
Possible reasons are (Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) of 131.9, above 115, which causes the surface tension of the glass to go beyond a suitable range, further exacerbating the instability of the frosting process, adversely affecting the gloss of the antiglare glass; erosion coefficient γ=0.01× (1.5 SiO 2 +CaO)/ln(Al 2 O 3 ) The actual frosting treatment time was 60s, and although γ was in the range of 0.3 to 0.6, it was deviated from the preferable frosting treatment time by 120 s.+ -. 5s, resulting in deterioration of the transmittance degradation surface roughness.
Comparative example 4
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 4 was produced in substantially the same manner as in example 1 except that the frosting treatment was carried out for 60 seconds.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance is 83.27% and less than 85%, the glossiness is 86.5%, the glossiness is extremely poor 4.2%, the haze is 10.4%, and the surface roughness is 0.067 μm and more than 0.5 μm.
The cause of the performance degradation may be (Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) of 149.4, significantly higher than 115, causing the surface tension of the glass to go beyond a suitable range, further exacerbating the instability of the frosting process, adversely affecting the gloss of the antiglare glass; erosion coefficient γ=0.01× (1.5 SiO 2 +CaO)/ln(Al 2 O 3 ) The actual frosting treatment time was 60s, and although γ was in the range of 0.3 to 0.6, it was deviated from the preferable frosting treatment time by 90 s.+ -. 4s, which also resulted in deterioration of transmittance and surface roughness.
Comparative example 5
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 5 was prepared in substantially the same manner as in example 1.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance is 82.53% less than 85%, the glossiness is 72.7% less than 75%, the glossiness is 3.9%, the haze is 15.3% more than 13%, and the surface roughness is 0.044 μm.
The cause of deterioration of the glass product properties in this comparative example may be (Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) is 128.6, significantly higher, which causes the surface tension of the glass to go beyond a suitable range, further exacerbating the instability of the frosting process, adversely affecting the gloss of the antiglare glass; erosion coefficient γ=0.01× (1.5 SiO 2 +CaO)/ln(Al 2 O 3 ) The actual frosting treatment time was 120s, and although γ was in the range of 0.3 to 0.6, it was deviated from the preferable frosting treatment time by 60 s.+ -. 3s, resulting in deterioration of transmittance, glossiness and haze property.
Comparative example 6
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
The antiglare glass of comparative example 6 was produced in substantially the same manner as in example 1 except that the frosting treatment was carried out for 60 seconds.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 91.01%, the glossiness was 91.3%, the glossiness was 4%, the haze was 5.8%, and the surface roughness was 0.047 μm.
The cause of the deterioration of the glass product properties may be the erosion factor
γ＝0.01×(1.5SiO 2 +CaO)/ln(Al 2 O 3 ) The actual frosting treatment time is 60s, while gamma is in the range of 0.3-0.6, the preferred frosting treatment time is 120s + -5 s, the frosting treatment time is long, and the crystal precipitate is continuously deposited on the glass to a higher erosion degreeThe small surface, in turn, causes non-uniform deposition of the precipitates, manifested by deterioration of the gloss and haze parameters of the glass product.
Comparative example 7
Raw glass sheets were prepared according to the compositions of the glasses in table 3, and cut, double-sided polished, and CNC processed in the same manner.
Comparative example 7 divide K 2 Composition other than O, (SiO) 2 +Al 2 O 3 ) - (CaO+MgO) value, (Na) 2 O+K 2 O)×(SiO 2 /Al 2 O 3 CaO/MgO) values, and erosion coefficient gamma values, all falling within the scope of the present application, K 2 The O content was 0%.
The antiglare glass of comparative example 7 was produced in substantially the same manner as in example 1, except that the time of the frosting treatment was 1.5min.
The same test method is adopted for testing, and the obtained performance parameters are as follows:
the transmittance was 90.87%, the glossiness was 95%, the glossiness was 2.5%, the haze was 4.5% and less than 7%, and the surface roughness was 0.074 μm and more than 0.05 μm. This is because of the absence of K 2 O causes too high erosion performance, and the erosion efficiency is reduced, which is characterized by high glossiness and too low haze, and the uneven erosion is caused by insufficient erosion, so that the surface roughness is also larger, and the anti-dazzle effect is reduced.
In addition, through experiments, the inventor also found that when MgO is not contained in sodium aluminum silicon glass, the characteristics that MgO itself reduces erosion resistance and can increase erosion resistance by enhancing mixed alkali effect cannot be fully utilized, and fine adjustment of erosion resistance is not easy to obtain glass with moderate performance, and the etching process is difficult to control.
The change of process conditions in the frosting treatment can also have a significant effect on the optical properties of the glass: when the pre-etching in the frosting treatment is omitted, the etching efficiency is reduced under the same other conditions, and the haze is lower and the surface roughness is increased as a whole; when the pickling in the frosting treatment is omitted, under the condition that other conditions are the same, as more crystals are attached to the surface of the glass, the optics are blocked, and the transmittance is obviously reduced; when the post-polishing in the frosting treatment is omitted, the surface roughness increases and the glossiness decreases remarkably because the unevenness of the glass surface is not treated under the same conditions.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The sodium aluminum silicon glass is characterized by comprising the following raw materials in percentage by mass: 58% -70% of SiO 2 8 to 15 percent of Al 2 O 3 13-18% of Na 2 O and 2.5 to 5.5 percent of K 2 O, 2 to 5.5 percent of MgO, 0 to 3 percent of CaO and 0 to 1.5 percent of ZrO 2 And 0% to 1.5% of B 2 O 3 ；
Wherein, the following formulas are satisfied by the mass percentages of the components: 66% or less (SiO) 2 +Al 2 O 3 )-(CaO+MgO)≤75％，85％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤115％。
2. Sodium aluminum silicate glass according to claim 1, characterized in that the erosion coefficient γ= (1.5×sio) is calculated as the mass percentage of the component incorporation 2 +CaO)/ln(Al 2 O 3 X 100), and γ ranges from 0.3 to 0.6.
3. Sodium aluminium silicate glass according to claim 2, characterised in that, calculated as mass percent of the component brought in, one or more of the following characteristics (1) to (3) are satisfied:
(1)68.2％≤(SiO 2 +Al 2 O 3 )-(CaO+MgO)≤74％；
(2)89.8％≤(Na 2 O+K 2 O)×(SiO 2 /Al 2 O 3 -CaO/MgO)≤112.4％；
(3) The erosion coefficient gamma ranges from 0.35 to 0.51.
4. The preparation method of the anti-dazzle glass is characterized by comprising the following steps of:
placing the sodium aluminum silicate glass as a glass raw sheet in a first acid solution containing hydrofluoric acid for pre-etching treatment, and cleaning and drying after the pre-etching treatment;
placing the crude product subjected to the pre-etching treatment into a frosting liquid for frosting treatment for 60-120 s;
And (3) placing the crude product subjected to frosting treatment in acid liquor without hydrofluoric acid for pickling treatment, and then performing post-polishing treatment on the crude product by second acid liquor with hydrofluoric acid, cleaning and drying.
5. The method according to claim 4, wherein the frosting liquid comprises, by weight, 6 to 10 parts of ammonium bifluoride, 4 to 6 parts of potassium fluoride, 4 to 6 parts of ammonium sulfate, 5 to 7 parts of potassium sulfate, 2 to 5 parts of hydrochloric acid, 1 to 2 parts of sulfuric acid, and 10 to 15 parts of water.
6. The production method according to claim 4, wherein one or more of the following conditions (1) to (3) are satisfied:
(1) The first acid liquor containing hydrofluoric acid is prepared from 40-60 parts of 15g/mL hydrofluoric acid and 40-60 parts of 6g/mL sulfuric acid according to parts by weight;
(2) The acid liquor without hydrofluoric acid is prepared from 40-60 parts of 16g/mL sulfuric acid and 40-60 parts of 5g/mL hydrochloric acid according to parts by weight;
(3) The second acid liquor containing hydrofluoric acid is prepared from 40-60 parts of 15g/mL hydrofluoric acid and 40-60 parts of 6g/mL sulfuric acid according to parts by weight;
(4) The time of the pre-etching treatment is 5-20 s;
(5) The pickling treatment time is 2-7 min;
(6) The post-polishing treatment time is 7-14 min.
7. The method according to claim 4, wherein the erosion coefficient γ= (1.5×sio) is calculated as the mass percentage of the component 2 +CaO)/ln(Al 2 O 3 X 100), one of the following conditions (1) to (3) is also satisfied:
(1) When the value of the erosion coefficient gamma is 0.356-0.39, the frosting treatment time is 120 s+/-5 s;
(2) When the value of the erosion coefficient gamma is 0.391-0.45, the frosting treatment time is 90 s+/-4 s;
(3) When the value of the erosion coefficient gamma is 0.451-0.519, the time of the frosting treatment is 60 s+/-3 s.
8. An antiglare glass prepared by the method according to any one of claims 4 to 7.
9. A glass-containing article comprising a glass structure prepared using the antiglare glass of claim 8.
10. Use of the anti-glare glass of claim 8 or the glass product of claim 9 in the preparation of display screens, curtain walls.
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| CN117142762A (en) * | 2023-08-04 | 2023-12-01 | 清远南玻节能新材料有限公司 | Frosted glass, preparation method thereof and glass product |
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| CN117142762A (en) * | 2023-08-04 | 2023-12-01 | 清远南玻节能新材料有限公司 | Frosted glass, preparation method thereof and glass product |
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