CN117585903A - Ultraviolet radiation-proof glass - Google Patents
Ultraviolet radiation-proof glass Download PDFInfo
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- CN117585903A CN117585903A CN202311660137.5A CN202311660137A CN117585903A CN 117585903 A CN117585903 A CN 117585903A CN 202311660137 A CN202311660137 A CN 202311660137A CN 117585903 A CN117585903 A CN 117585903A
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- resistant glass
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- 239000011521 glass Substances 0.000 title claims abstract description 128
- 230000005855 radiation Effects 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 16
- 239000008395 clarifying agent Substances 0.000 claims abstract description 15
- 238000002834 transmittance Methods 0.000 claims abstract description 15
- 229910052796 boron Inorganic materials 0.000 claims abstract description 10
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 9
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 230000006750 UV protection Effects 0.000 abstract description 4
- 239000011734 sodium Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 11
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000003426 chemical strengthening reaction Methods 0.000 description 3
- 238000004031 devitrification Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000006121 base glass Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 210000001808 exosome Anatomy 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- -1 lithium aluminum silicon Chemical compound 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate 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
- C03C4/00—Compositions for glass with special properties
- C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
- C03C4/085—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for ultraviolet absorbing glass
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/004—Refining agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The glass capable of preventing ultraviolet radiation comprises the following raw materials in percentage by mass: siO (SiO) 2 52～63％，Al 2 O 3 12～19％，Na 2 O9～16％，K 2 O0.2～7％，MgO0.2～8％，B 2 O 3 0.2～10％，ZrO 2 0.2～3％，Fe 2 O 3 0.2～5％，TiO 2 0.2～5％，CeO 2 0.5-2% of clarifying agent and 0.1-2% of clarifying agent, wherein the clarifying agent comprises at least one of sulfate, nitrate, fluoride and chloride. The transmittance of the glass provided by the embodiment of the application is about 25% in the ultraviolet light range of 320nm-400 nm. The ultraviolet resistance is better.
Description
Technical Field
The present application relates to the field of glass, and in particular, to ultraviolet radiation resistant glass.
Background
Ultraviolet rays are light rays with the wavelength of 10 nm-400nm in electromagnetic wave praseodymium, and are divided into UVA (wavelength of 400 nm-320 nm), UVB (wavelength of 320 nm-280 nm), UVC (wavelength of 280 nm-100 nm) and EUV (wavelength of 100 nm-10 nm), wherein the carcinogenicity of the UVA is strongest. Although ultraviolet light has certain benefits to the human body, prolonged exposure to ultraviolet light can cause damage to the human skin and eyes. Excessive ultraviolet rays can cause a series of changes in human body functions, and especially cause harm to skin, eyes, immune system and the like of a human body. Ultraviolet-proof automobile window glass technology has been an important research direction.
How to improve the ultraviolet resistance of glass is a problem to be solved by glass.
Disclosure of Invention
It is an aim of embodiments of the present application to provide a glass that is resistant to ultraviolet radiation, which aims to improve the ultraviolet resistance of the glass.
The application provides a technical scheme: the ultraviolet radiation resistant glass comprises the following raw materials in percentage by mass:
SiO 2 52～63％，Al 2 O 3 12～19％，Na 2 O9～16％，K 2 O0.2～7％，MgO0.2～8％，B 2 O 3 0.2～10％，ZrO 2 0.2～3％，Fe 2 O 3 0.2～5％，TiO 2 0.2～5％，CeO 2 0.5-2% of clarifying agent and 0.1-2% of clarifying agent, wherein the clarifying agent comprises at least one of sulfate, nitrate, fluoride and chloride.
In other embodiments of the present application, the raw materials of the ultraviolet radiation resistant glass are SiO 2 And Al 2 O 3 The sum of the mass percentages is 70-80%.
In other embodiments of the present application, the ultraviolet radiation resistant glass comprises raw materials having a mass percent that satisfies the following formula:
R 2 O/(Al 2 O 3 +B 2 O 3 ) 0.8 to 2.0, R is as follows 2 R in O is an alkali metal element.
In other embodiments of the present application, the ultraviolet radiation resistant glass comprises raw materials having a mass percent that satisfies the following formula:
(Fe 2 O 3 +TiO 2 )/CeO 2 >1.5。
in other embodiments of the present application, the ultraviolet radiation resistant glass comprises raw materials in the following proportions by mass:
Al 2 O 3 /(Na 2 O+K 2 o) is 1.2 to 2.0.
In other embodiments of the present application, the surface compressive stress of the ultraviolet radiation resistant glass is greater than or equal to 700MPa.
In other embodiments of the present application, the ultraviolet radiation resistant glass has a thickness of 0.33mm to 1mm.
In other embodiments of the present application, the ultraviolet radiation resistant glass has a coefficient of expansion of 90 x 10 -7 /℃～100×10 -7 /℃。
In other embodiments of the present application, the ultraviolet radiation resistant glass has a transmittance of less than or equal to 25% at wavelengths between 320nm and 400 nm.
The glass for preventing ultraviolet radiation provided by the embodiment of the application has at least the following beneficial effects:
the glass provided by the embodiment of the application has the light transmittance of more than 90% at the position of 550nm of visible light, and the light transmittance of about 25% between 320nm and 400nm of ultraviolet light. The expansion coefficient is 90-100 multiplied by 10 -7 After one-time strengthening, the expansion amount of the glass is less than or equal to 0.05 percent, the surface compressive stress is at least more than 700MPa, and DOL is about 42 mu m; the center point 130g ball drop test can reach about 40 cm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a graph showing transmittance at a wavelength of 300 to 900nm of the glass of example 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The ultraviolet radiation resistant glass comprises the following raw materials in percentage by mass:
SiO 2 52～63％，Al 2 O 3 12～19％，Na 2 O9～16％，K 2 O0.2～7％，MgO0.2～8％，B 2 O 3 0.2～10％，ZrO 2 0.2～3％，Fe 2 O 3 0.2～5％，TiO 2 0.2～5％，CeO 2 0.5-2% of clarifying agent and 0.1-2% of clarifying agent, wherein the clarifying agent comprises at least one of sulfate, nitrate, fluoride and chloride.
SiO 2 Is a main component forming silicon oxygen tetrahedron and connected to form a glass network structure, and is a basic framework of glass. SiO (SiO) 2 The addition amount is 58 to 72%, preferably 60 to 68%, for example 52%, 53%, 55%, 56%, 58%, 60%, 62%. When SiO 2 <58% of the glass has poor chemical resistance, and the surface state of the glass becomes poor and hazy or even pulverized after acid-base corrosion. SiO (SiO) 2 The higher the content, the greater the degree of silicon oxygen tetrahedral interconnection, and the higher the chemical stability of the glass. In addition, an increase in the expansion coefficient, a decrease in mechanical strength and strain point may be caused. When SiO 2 >At 72%, the high temperature viscosity of the glass increases, causing refractory and exacerbating kiln refractory erosion.
Al 2 O 3 Is easy to form tetrahedral coordination, [ AlO ] 4 ]Tetrahedral coordination can help with [ SiO ] 4 ]Tetrahedra together build a tighter network, an important component of the glass network, which can also make the glass geometry very little variable. [ AlO ] 4 ]Tetrahedra can also significantly enhance the ion exchange process during chemical tempering. Al (Al) 2 O 3 The amount of (2) added is 12 to 19%, preferably 12 to 18%, for example, 12%, 13%, 14%, 15%, 16%, and the like,17%, 18% or 19%. When the content is higher than 13%, the alumina tetrahedron and the silica tetrahedron formed in the way are interpenetrating into a network structure, so that the lithium aluminum silicon glass with higher transmittance can be obtained and good hydrolytic resistance is beneficial to be obtained. But Al is 2 O 3 The content exceeds 25%, which is easy to cause glass frosting and even devitrification, and in addition, the high-temperature viscosity is increased, the melting difficulty is increased, and the production is not facilitated.
Na 2 O is glass network exosome oxide, na + Residing in the cavities of the glass structure network. Na (Na) 2 O can provide free oxygen to increase the O/Si ratio in the glass structure and break bonds, so that the O is a good cosolvent in the glass component, the viscosity of the glass can be reduced, and the glass is easy to melt. And is an important element for ion exchange in chemical tempering. At the same time Na 2 O increases the coefficient of thermal expansion of the glass, decreases the thermal stability, chemical stability and mechanical strength of the glass, and therefore cannot be incorporated too much, typically not more than 18%. Na of high alumina silicate glass in this scheme 2 The amount of O added is 9 to 16%, preferably 10 to 15%, and may be, for example, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%. When Na is 2 Above 16% O, the chemical stability of the glass is reduced and at least 5% O can maintain the glass melting temperature at a suitable level and provide considerable ion exchange characteristics to the glass.
K 2 Action of O and Na 2 O is similar. The radius of K+ is larger than that of Na+, the viscosity of potassium glass is larger than that of sodium glass, the crystallization tendency of the glass can be reduced, and the transparency and glossiness of the glass are improved. The content of the high alumina silica glass of the present invention is in the range of 0.2 to 7%, preferably 0.2 to 6%. For example, the content may be 0.2%, 0.5%, 0.7%, 0.8%, 1%, 2%, 3%, 5%, 6%, 7%.
MgO can improve the glass meltability, strain point and Young's modulus, reduce crystallization tendency and crystallization speed, increase the high-temperature viscosity of the glass, improve the chemical stability and mechanical strength of the glass, but when the MgO content is too high, the surface tension of the glass is also increased, so that alkali metal ions are difficult to exchange with the glass, and the ion exchange rate is reduced, so the content is not more than 8%. The content of MgO in the high alumina silica glass of the present invention is in the range of 0.2 to 8%, preferably 3 to 7%. For example, the content may be 0.2%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%.
B 2 O 3 Generally, the glass is colorless transparent hard and brittle substance (capable of scratching glass) with the density of 1.84g/cm 3 Melting point 600 ℃. Crystalline boron oxide density 1.805g/cm 3 Melting point 295 deg.c, boiling point 1860 deg.c, water solubility and alcohol solubility, high water absorbability and high glass network forming performance. B (B) 2 O 3 In glass, the use of [ BO ] 4 ]And [ BO ] 3 ]Two structures exist. When the glass contains oxygen in sufficient quantity to provide free oxygen, boron is used as BO 4 ]The form participates in the network structure and plays a role of connecting the network. [ BO ] 4 ]The glass has a tetrahedral structure, when the glass exists, the crystallization tendency of the glass can be reduced, the refractive index of the glass is improved, the luster is improved, and the chemical stability and the heat resistance are improved; when the network in vitro content of the glass component is low and sufficient free oxygen cannot be provided, boron is present as [ BO ] 3 ]The triangular form exists without entering the glass network. [ BO ] 3 ]In chain and layered structures, such as stepwise increases, the glass will produce lower softening temperatures, poorer chemical stability and larger coefficients of expansion. [ BO ] 4 ]And [ BO ] 3 ]The glass has some obvious change of properties, and the glass is called boron abnormal phenomenon, i.e. the maximum or minimum of the composition and property curves, and the boron abnormal phenomenon can be used for making the glass reach a certain specific requirement. The excessive boron content in the glass component can cause serious volatilization of boron, and cause the problems of unstable glass component, environmental pollution and the like. The invention defines B 2 O 3 The content is 0.2 to 10%, preferably 0.2 to 5%. For example, the content may be 0.2%, 0.5%, 1%, 2%, 3%, 4%, 5%.
ZrO 2 Not only has the best water resistance and acid resistance, but also has the best alkali resistance, and a proper amount of ZrO 2 Which helps to improve the chemical durability and hardness of the glass. But if too much ZrO is contained 2 On the one hand, glass is reduced in devitrification resistance, and on the other hand, meltability is deteriorated and devitrification tends to occur, resulting inThe form becomes difficult. ZrO in glasses of the invention 2 The content of (C) is in the range of 0.2 to 3%, preferably 0.2 to 1.0%. For example, the content may be 0.2%, 0.4%, 0.6%, 1%, 1.3%, 1.6%, 2%, 3%.
The glass composition of the invention can be used for preparing high alumina silica glass, so that the glass has excellent comprehensive performance, and is mainly attributed to the mutual coordination among the components in the composition, especially SiO 2 、Al 2 O 3 Satisfy SiO therebetween 2 +Al 2 O 3 70-80%.
The mass percentage of the raw materials of the ultraviolet radiation resistant glass meets the following formula: r is R 2 O/(Al 2 O 3 +B 2 O 3 ) 0.8 to 2.0. For example, 0.8, 1, 1.2, 1.5 or 2, R being as defined in the specification 2 R in O is an alkali metal element, and illustratively, R may be Li, na, K, or the like.
Using Fe 2 O 3 、TiO 2 And CeO 2 Can prepare glass capable of absorbing ultraviolet light, is suitable for preparing glass which is simple to melt, is well clarified, and does not need to be subjected to color development treatment.
Fe is often used as Fe in glass 2+ Good Fe 3+ The ratio of the two in the glass is dependent on the glass composition and the melting conditions. Fe (Fe) 2+ There are two absorption bands in the range 950-1100 nm and 2050-2200 nm. Fe (Fe) 3+ The coloring ability of the glass is strong, the ultraviolet is strongly absorbed, and the glass extends to a visible light region, so that the glass is yellowish green.
TiO 2 Possibly with Ti 4+ And Ti is 3+ Two states exist in the glass, ti 4+ Strongly absorbing the ultraviolet light, the absorption band often enters the violet-blue portion of the visible region, resulting in a brownish yellow color of the glass.
Cerium energy is Ce 4+ And Ce (Ce) 3+ Both morphologies were present in the glass. Ce (Ce) 4+ Can strongly absorb ultraviolet rays, but also has high transmittance in the visible light region. Often making the glass yellowish.
The addition of the clarifying agent in the melting stage can be more beneficial to eliminating bubbles in the molten glass, so that the molten glass is melted moreEven, and eliminates the internal defects such as stripes. The clarifying agent comprises at least one of sulfate, nitrate, fluoride, and chloride. The specific choice of clarifying agent is not particularly limited and may be SO 4 2- 、NO 3 - 、F - 、Cl - One or more of the following.
The ultraviolet radiation resistant glass comprises the following raw materials in percentage by mass:
(Fe 2 O 3 +TiO 2 )/CeO 2 >1.5. thus, a better anti-ultraviolet effect can be obtained.
In the invention, in order to obtain better toughening effect and thus improve the surface stress and bending resistance of the ultraviolet-proof high-alumina silica glass, al is necessary to be controlled 2 O 3 Relative to the sum Na 2 O and K 2 The ratio of the total O content, i.e. Al 2 O 3 /(Na 2 O+K 2 O) is 1.2 to 2.0.
The glass substrate prepared by adopting the material formula composition optimally designed by the invention has the thickness of 0.33-1 mm.
The glass provided by the embodiment of the application has the light transmittance of more than 90% at the position of 550nm of visible light, and the light transmittance of about 25% between 320nm and 400nm of ultraviolet light. The expansion coefficient is 90-100 multiplied by 10 -7 After one-time strengthening, the expansion amount of the glass is less than or equal to 0.05 percent, the surface compressive stress is at least more than 700MPa, and DOL is about 42 mu m; the center point 130g ball drop test can reach about 40 cm.
The preparation method of the glass is not limited in the embodiment. Illustratively, the SiO is heated 2 、Al 2 O 3 、Na 2 O、MgO、K 2 O、ZrO 2 、B 2 O 3 And (3) uniformly mixing, then carrying out high-temperature melting (1520-1680 ℃), clarifying, homogenizing, forming and annealing to obtain the high-alumina silica glass base glass, and then carrying out deep processing treatments such as cutting, CNC, primary strengthening and the like according to the required size.
Transmittance that can be used for chemical strengthening and uv-blocking automotive glass is measured by using a spectrophotometer against standard ISO13468-1: 1996.
The surface compressive stress values useful for chemically strengthening and uv resistant automotive glass are measured by using a surface stress meter with reference to standards GB/T18144-2008 and ASTM 1422C-99;
hardness useful for chemically strengthening and uv resistant automotive glass is measured by using a vickers durometer reference standard GB/T16534-2009;
four-point flexural strength useful for chemically strengthening and uv-blocking automotive glass was measured by using a universal tester with reference to standard JC/T676-1997.
The ball falling strength of the impact-resistant center point of the automobile glass which can be used for chemical strengthening and ultraviolet resistance is measured by a ball falling tester, specifically, a glass sample to be measured is placed on a jig, 130g steel balls fall from a specified height, and the maximum ball falling height of the impact which can be borne by the glass sample to be measured without fragmentation is measured. Specifically, the test was performed starting from a height of 15cm, dropping the center point 3 times, rising 10mm each time, until the glass was broken, and the broken height was recorded.
It should be understood that the above testing method and testing equipment are common methods for evaluating glass related properties in the industry, and are only a means for characterizing or evaluating the technical solutions and effects of the present invention, and other testing methods and testing equipment may be used without affecting the final results.
Examples 1 to 10
Examples 1 to 10 each provide a glass. The proportions of the glass raw materials are shown in Table 1.
TABLE 1
The preparation process comprises the following steps: raw materials are obtained according to the proportion shown in the table 1, and after the raw materials are fully stirred and mixed, the raw materials are put into a float process melting furnace, and then are subjected to processes such as melting, clarifying, forming, annealing, cutting and the like, the base glass with the thickness of 0.6mm is prepared.
The tempering conditions are shown in Table 2, and the results of the performance tests of the glasses provided in examples 1 to 10 are shown in Table 3.
TABLE 2
TABLE 3 Table 3
Comprehensive comparison Table 3 can be given as follows:
the glass provided in examples 1 to 10 has excellent ultraviolet light prevention effect, the light transmittance at 320-400nm is only about 20%, the light transmittance reaches more than 90% after one-time chemical strengthening, the expansion amount of the glass is less than or equal to 0.05%, the drop performance at the center point reaches more than 40cm, and the glass has excellent impact resistance.
FIG. 1 is a graph showing transmittance at a wavelength of 300 to 900nm of the glass of example 7. As can be seen from FIG. 1, the glass provided in example 7 has a light transmittance of less than 20% at 190-390 nm.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (9)
1. The ultraviolet radiation resistant glass is characterized by comprising the following raw materials in percentage by mass of oxides:
SiO 2 52～63％，Al 2 O 3 12～19％，Na 2 O 9～16％，K 2 O 0.2～7％，MgO 0.2～8％，B 2 O 3 0.2～10％，ZrO 2 0.2～3％，Fe 2 O 3 0.2～5％，TiO 2 0.2～5％，CeO 2 0.5-2% of clarifying agent and 0.1-2% of clarifying agent, wherein the clarifying agent comprises at least one of sulfate, nitrate, fluoride and chloride.
2. The ultraviolet radiation-resistant glass according to claim 1, wherein the raw material of the ultraviolet radiation-resistant glass comprises SiO 2 And Al 2 O 3 The sum of the mass percentages is 70-80%.
3. The ultraviolet radiation-resistant glass according to claim 1, wherein the raw materials of the ultraviolet radiation-resistant glass have a mass percentage satisfying the following formula:
R 2 O/(Al 2 O 3 +B 2 O 3 ) 0.8 to 2.0, R is as follows 2 R in O is an alkali metal element.
4. The ultraviolet radiation-resistant glass according to claim 1, wherein the raw materials of the ultraviolet radiation-resistant glass have a mass percentage satisfying the following formula:
(Fe 2 O 3 +TiO 2 )/CeO 2 >1.5。
5. the ultraviolet radiation-resistant glass according to claim 1, wherein the raw materials of the ultraviolet radiation-resistant glass satisfy the following relationship in mass percent:
Al 2 O 3 /(Na 2 O+K 2 o) is 1.2 to 2.0.
6. The ultraviolet radiation resistant glass according to claim 1, wherein the surface compressive stress of the ultraviolet radiation resistant glass is greater than or equal to 700MPa.
7. The ultraviolet radiation resistant glass according to claim 1, wherein the ultraviolet radiation resistant glass has a thickness of 0.33mm to 1mm.
8. The ultraviolet radiation resistant glass according to claim 1, wherein the ultraviolet radiation resistant glass has a coefficient of expansion of 90 x 10 -7 /℃～100×10 -7 /℃。
9. The ultraviolet radiation-resistant glass according to claim 1, wherein the ultraviolet radiation-resistant glass has a light transmittance of less than or equal to 25% at wavelengths between 320nm and 400 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311660137.5A CN117585903A (en) | 2023-12-05 | 2023-12-05 | Ultraviolet radiation-proof glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311660137.5A CN117585903A (en) | 2023-12-05 | 2023-12-05 | Ultraviolet radiation-proof glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117585903A true CN117585903A (en) | 2024-02-23 |
Family
ID=89913174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311660137.5A Pending CN117585903A (en) | 2023-12-05 | 2023-12-05 | Ultraviolet radiation-proof glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117585903A (en) |
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2023
- 2023-12-05 CN CN202311660137.5A patent/CN117585903A/en active Pending
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