CN115557696A - Chemically strengthened UV and blue blocking antimicrobial bioglass - Google Patents

Chemically strengthened UV and blue blocking antimicrobial bioglass Download PDF

Info

Publication number
CN115557696A
CN115557696A CN202210773592.5A CN202210773592A CN115557696A CN 115557696 A CN115557696 A CN 115557696A CN 202210773592 A CN202210773592 A CN 202210773592A CN 115557696 A CN115557696 A CN 115557696A
Authority
CN
China
Prior art keywords
glass
range
bioglass
blocking
ion exchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210773592.5A
Other languages
Chinese (zh)
Inventor
吉藤德拉·西盖尔
比斯瓦讷斯·森
董立婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avanstrate Holding Co ltd
Original Assignee
Avanstrate Holding Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avanstrate Holding Co ltd filed Critical Avanstrate Holding Co ltd
Publication of CN115557696A publication Critical patent/CN115557696A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/005—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to introduce in the glass such metals or metallic ions as Ag, Cu
    • 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
    • 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • 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
    • 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
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/02—Antibacterial glass, glaze or enamel

Abstract

A chemically strengthened UV and blue light blocking antimicrobial bioglass and composition thereof are described. The quality factor FOMBFG coefficient of the bio-friendly glass is between 0.5 mu g/cm 2 And 13,500. Mu.g/cm 2 Station betweenThe bioglass exhibits good UV blocking (ultraviolet blocking) properties, blue light blocking properties and antimicrobial properties. The FOMBFG is defined as (% UV-blocking at 380 nm) * (blue blocking% at 430 nm) * (Ag concentration at the surface of the glass). The bioglass exhibits a UV light blocking characteristic of up to 100% and a blue light blocking characteristic of up to 45%.

Description

Chemically strengthened UV and blue blocking antimicrobial bioglass
Technical Field
A bioglass composition is described. More specifically, the present invention is directed to a glass composition having UV and blue blocking properties. The present invention further describes a glass composition having antimicrobial properties that exhibits increased strength through an ion exchange strengthening process.
Background
In recent years, electronic devices having a display screen have been widely used. Electronic devices such as mobile phones and wearable devices are used in both indoor and outdoor environments. As such electronic devices are exposed to ultraviolet radiation (UV) from sunlight, new challenges are faced in outdoor environments. Prolonged exposure to UV radiation tends to affect the lifetime of display screens, such as OLEDs, LEDs, LCDs, etc. Therefore, there is a need for a new solution to block UV light in the cover glass, which protects the display under the cover glass from damaging the display of the electronic device.
Another major problem in the modern world is the amount of screen viewing time that the user of the electronic device must deal with each day. Electronic devices such as mobile phones, tablet computers, or wearable devices emit artificial blue light. Since the intensity of blue light is higher than the intensity of any other light in the full spectrum light, blue light causes eye contraction and increases eye fatigue due to over-exertion of eye muscles. Since the human eye is not good at blocking blue light, blue light may also directly affect the retina and cause damage, resulting in cataracts. The wavelength of blue light is short, close to the wavelength of UV rays of sunlight. When a person is exposed to the large amount of blue light emitted by an electronic device, the blue light can greatly damage the deep layers of skin and can ultimately lead to premature aging and skin cancer. Therefore, a solution is needed to reduce blue light emitted from a display screen of an electronic device.
Since cover glasses have been commonly used to protect display screens of electronic devices, the use of cover glasses having UV and blue light blocking properties may solve the above-mentioned problems. It is well known that the properties of cover glass are highly dependent on the glass composition and ion exchange conditions. Therefore, a need exists for a cover glass having UV and blue blocking properties.
Additionally, touch screen technology has been commonly used by individuals on their mobile phones and wearable devices, and by countless people on devices such as kiosks and service-providing tablet computers in public places. Touch screens can be a breeding ground for various bacteria and viruses because countless people interact with touch screens on devices such as kiosks every day. Wiping the screen after each use is impractical and does not guarantee that people will comply with hygiene practices. The use of an antimicrobial screen cover on the display screen of such devices can avoid any infection from being transmitted during use in medical centers and hospitals. Therefore, there is also a need for a cover glass having antimicrobial properties.
Object of the Invention
Some of the objects of the present disclosure are described herein. It is an object of the present disclosure to provide a bioglass composition. It is another object of the present disclosure to provide a UV blocking (ultraviolet blocking) and blue blocking bioglass composition.
It is another object of the present disclosure to provide a bioglass composition having UV light blocking characteristics up to 100%, wherein the wavelength of UV light is less than or equal to 380nm.
It is another object of the present disclosure to provide a bioglass composition having blue light blocking characteristics of up to 45%, wherein the wavelength of the blue light is less than or equal to 430nm.
It is another object of the present disclosure to provide a bioglass composition having antimicrobial properties. It is another object of the present disclosure to provide a UV blocking, blue blocking and antimicrobial bioglass.
It is another object of the present disclosure to provide a bioglass composition that is UV blocking, blue blocking, and antimicrobial through a bio-friendly glass quality factor (FOMBFG) coefficient. The FOMBFG coefficient provided by the present disclosure is from 0.5 to 13,500. Mu.g/cm 2 Within the range of (1).
It is another object of the present disclosure to subject the bioglass composition to an ion exchange process.
It is another object of the present disclosure to provide a bioglass composition that is stronger and has a longer service life.
Other objects and advantages of the present disclosure will become more apparent from the following description which is not intended to limit the scope of the present invention.
Disclosure of Invention
In one embodiment of the present disclosure, a bioglass composition has been disclosed. The present disclosure discloses bioglass compositions having UV blocking (ultraviolet blocking) properties and blue light blocking properties. In another embodiment, the present disclosure discloses a bioglass composition having UV blocking properties, blue light blocking properties, and antimicrobial properties.
In one embodiment, the bioglass has a UV light blocking characteristic of up to 100% that blocks UV light having a wavelength of less than or equal to 380nm.
In one embodiment, the bioglass has a blue blocking characteristic of up to 45% that blocks blue light having a wavelength of less than or equal to 430nm.
In an embodiment, the present disclosure discloses a bio-friendly glass quality factor (FOMBFG) coefficient describing good UV blocking, blue blocking, and antimicrobial bioglass compositions. In one embodiment, FOMBFG is defined as (% UV blocked at 380 nm) * (blue light blocking% at 430 nm) * (Ag concentration at the surface of the glass). In one embodiment, the bioglass has a minimum FOMBFG of 0.5 μ g/cm 2 . In one embodiment, the bioglass has a FOMBFG maximum of 13,500 μ g/cm 2 。
In an embodiment, the glass composition includes SiO in a range of about 40wt.% to about 70wt.% 2 (ii) a Al in the range of about 5wt.% to about 35wt.% 2 O 3 (ii) a B in the range of about 0wt.% to about 10wt.% 2 O 3 (ii) a Li in the range of about 0wt.% to about 10wt.% 2 O; na in the range of about 5wt.% to about 25wt.% 2 O; k in the range of about 0wt.% to about 5wt.% 2 O; mgO in the range of about 0wt.% to about 7 wt.%; znO in the range of about 0wt.% to about 5 wt.%; zrO within a range of about 0wt.% to about 5 wt% 2 (ii) a SnO in the range of about 0wt.% to about 2wt.% 2 (ii) a In about 0wt.% to about 3wt. -%)Fe in the range of 2 O 3 (ii) a CeO in the range of about 0wt.% to about 3wt.% 2 (ii) a P in the range of about 0wt.% to about 7wt.% 2 O 5 (ii) a And TiO in the range of about 0wt.% to about 3wt.% 2 。
In one embodiment, fe 2 O 3 And CeO 2 The amount of (a) affects the characteristics of the bioglass composition. The presence of specific amounts of iron and cerium results in bioglass with improved UV and blue blocking properties. Similarly, the amount of silver (Ag) in the bioglass composition describes a glass with better antimicrobial properties.
In one embodiment, the cover glass may be provided with high strength by a chemical strengthening process of multiple ion exchanges. In one embodiment, the bioglass can be subjected to a single ion exchange process or a dual ion exchange process and a silver ion exchange process. The ion exchange process is based on the size of the ions. When the larger ions are exchanged for the smaller ions in the glass, the larger ions fill the surface area previously occupied by the smaller ions, creating a compressive stress on the interior surface of the glass, which corresponds to an increase in the strength of the glass. The compressive stress generated is reported to be proportional to the volume of glass that has undergone ion exchange. Once the glass is subjected to the ion exchange process, the glass exhibits high crack resistance.
In one embodiment, the bioglass composition described in the present invention is an aluminosilicate glass composition or a lithium aluminosilicate glass composition. The lithium aluminosilicate glass composition is double ion exchangeable, while the aluminosilicate glass composition is single ion exchangeable. The ion-exchangeable glass is then added to a silver salt bath to perform a silver ion exchange process to obtain antimicrobial properties. The ion-exchangeable glass compositions described in the present invention use potassium and silver salts to increase the blocking of uv and blue light. Additionally, it provides greater strength to the glass composition.
In one embodiment, the bioglass has better durability, higher crack resistance, higher post-damage residual strength, and higher impact strength, and the glass can withstand a greater number of device drops before failing.
In an embodiment, the bioglass may be used as a substrate for touch panel displays, such as Liquid Crystal Displays (LCDs), field Emission Displays (FEDs), plasma Displays (PDs), electroluminescent displays (ELDs), organic Light Emitting Diode (OLED) displays, micro-LEDs, and the like, and as a back cover for such displays. Bioglass is used to protect electronic devices with display screens, such as mobile phones, entertainment devices, tablet computers, laptop computers, digital cameras, wearable devices, and the like.
These and other aspects, advantages, and salient features of the disclosure will become apparent from the following detailed description.
Drawings
The features of the present invention which are believed to be novel are set forth with particularity in the appended claims. Embodiments of the present invention will be described herein after with reference to the accompanying drawings provided to illustrate and not to limit the scope of the claims, wherein like reference numerals refer to like elements, and in which:
fig. 1 shows a graph indicating percent light transmission through various glass samples at wavelengths between 200 and 1100 nanometers, according to an embodiment of the present disclosure.
Detailed Description
In the following description, like reference characters designate like or corresponding parts throughout the several views shown in the figures. It should also be understood that terms such as "top," "bottom," "outward," "inward," and the like are words of convenience and are not to be construed as limiting terms unless otherwise specified. In addition, whenever a group is described as comprising at least one of a group of elements and combinations thereof, it is understood that the group may comprise, consist essentially of, or consist of any number of those elements recited, either individually or in combination with each other. Similarly, whenever a group is described as consisting of at least one of a group of elements or combinations thereof, it is understood that the group may consist of any number of those elements recited, either individually or in combination with each other. Unless otherwise specified, when stated, a range of values includes the upper and lower limits of the range, and any range therebetween. As used herein, the indefinite articles "a" and "an" and the corresponding definite articles "the" mean "at least one" or "one or more" unless otherwise specified. It should also be understood that the various features disclosed in the specification and the drawings may be used in any and all combinations.
As used herein, the terms "a glass article" and "a plurality of glass articles" are used in their broadest sense to encompass any object made wholly or partially of glass. Unless otherwise specified, all compositions are expressed in weight percent (wt.%). Unless otherwise specified, all temperatures are expressed in degrees Celsius (. Degree. C.). Unless otherwise specified, the Coefficient of Thermal Expansion (CTE) is at 10 -7 In terms of/° c and represents values measured over a temperature range from about 50 ℃ to about 300 ℃. As used herein, the term "annealing point" refers to a viscosity of the glass of about 1X 10 13.2 Temperature at poise.
It should be noted that the terms "substantially" and "about" may be used herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. These terms are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.
Recently, as technology has advanced, electronic devices, such as mobile phones, tablet computers, wearable devices, digital cameras, and the like, have come into widespread use. These electronic devices have a display screen and are protected by cover glasses of different compositions. A bioglass composition having good UV blocking (ultraviolet blocking) and blue light blocking properties is described. Such glass compositions provide better service life for the display screen. As such, the bioglass reduces injury to the user's eyes from continued exposure to the electronic device. Another embodiment of the present invention describes a bioglass composition with good UV blocking, blue blocking and antimicrobial properties.
Electronic devices used in outdoor environments are exposed to Ultraviolet (UV) radiation of sunlight. Exposure to UV radiation may shorten the life of the display screen of the electronic device. Therefore, the invention provides a bioglass composition with UV light blocking property for protecting a display screen. Bioglass compositions exhibiting a minimum of 9% UV light blocking characteristic that blocks UV light having a wavelength less than or equal to 380nm are described.
The long screen viewing time of electronic devices such as mobile phones, laptops, etc. results in a constant exposure of the human eye to blue light. Since the human eye cannot block harmful blue light, the blue light can cause eye muscle and nerve tension. Accordingly, the present invention provides a bioglass composition having blue light blocking properties that reduces the exposure of the human eye to blue light. Bioglass compositions exhibiting a minimum of 8% blue light blocking characteristic that blocks blue light at wavelengths less than or equal to 430nm are described. In particular embodiments, bioglass compositions are described that exhibit (30 ± 3)% blue light blocking characteristics that block blue light at wavelengths less than or equal to 430nm. In particular embodiments, bioglass compositions are described that exhibit a blue light blocking characteristic of 45% that blocks blue light at wavelengths less than or equal to 430nm.
Touch screen technology has been commonly used by individuals on their mobile phones and wearable devices, and has also been used by countless people on devices such as kiosks and service-providing tablet computers in public places. Touch screens can be a breeding ground for various bacteria and viruses because countless people interact with touch screens on devices such as kiosks every day. Therefore, it is important to provide antimicrobial properties to the bioglass composition. The effectiveness of silver nanoparticles in irreversibly destroying bacterial cell membranes is well known in the art. Silver nanoparticles can bind to and penetrate the cell membrane, thereby blocking the host cell. Thus, the present invention describes the use of silver ions as an antimicrobial agent to keep glass away from bacteria and viruses. The invention describes a bioglass composition having a concentration of silver (Ag) in the glass in the range of 0.001 to 3wt.%. Preferably, the amount of Ag concentration may be in the range of 0.01 to 0.07wt.% to obtain good antimicrobial properties in the bioglass composition. It has also been found that the addition of ZnO in glass compositions improves the antimicrobial behaviour. Preferably, the ZnO of the glass composition is about 0wt.% to 5wt.%. ZnO is an intermediate oxide that becomes network forming ions in the glass. It is also well known in the art that lower concentrations of ZnO affect the survival of gram-negative and gram-positive bacteria. Thus, the presence of ZnO in the glass composition allows the glass to act as an antimicrobial agent.
To measure the required characteristics of a glass composition, the present disclosure discloses a bio-friendly glass quality factor (FOMBFG) coefficient for bioglass compositions that describes good UV blocking, blue blocking, and antimicrobial. The FOMBFG may be represented by the following equation (1):
FOMBFG = (UV blocking% at 380 nm) (% blue blocking at 430 nm) (% Ag concentration at the surface of glass) (1)
The minimum value of FOMBFG of the bioglass is 0.5 mu g/cm 2 And a maximum value of 13,500. Mu.g/cm 2 . The minimum Ag concentration at the surface of the bioglass was 0.001wt.%, and the maximum Ag concentration at the surface of the bioglass was 3wt.%.
Various bioglass compositions are described in detail herein. Alkali aluminosilicate glasses and compositions thereof are generally described. The glass composition includes one or more chemical components, such as SiO 2 、B 2 O 3 And Al 2 O 3 . Further, the alkali metal oxide is selected from the group consisting of Li 2 O、Na 2 O and K 2 O. Further, the glass composition contains alkali oxides such as MgO, caO, srO, and BaO. It may also comprise other chemical components, such as ZnO, zrO 2 、Fe 2 O 3 、CeO 2 、P 2 O 5 、TiO 2 And the like. It may also include a fining agent, such as SnO 2 Chlorides, sulfates, etc. Further, it may also include Fe 2 O 3 And CeO 2 . The characteristics of bioglass are determined by the glass groupThe high impact of wt.% of the constituent.
The present invention describes the optimal wt.% of the various components of the composition. The bioglass composition comprises SiO in the range of about 40wt.% to about 70 wt% 2 (ii) a Al in the range of about 5wt.% to about 35wt.% 2 O 3 (ii) a B in the range of about 0wt.% to about 10wt.% 2 O 3 (ii) a Li in the range of about 0wt.% to about 10wt.% 2 O; na in the range of about 5wt.% to about 25wt.% 2 O; k in the range of about 0wt.% to about 5wt.% 2 O; mgO in the range of about 0wt.% to about 7 wt.%; znO in the range of about 0wt.% to about 5 wt.%; zrO in a range of about 0wt.% to about 5wt.% 2 (ii) a SnO in the range of about 0wt.% to about 2 wt% 2 (ii) a Fe in the range of about 0wt.% to about 3wt.% 2 O 3 (ii) a CeO in the range of about 0wt.% to about 3wt.% 2 (ii) a P in the range of about 0wt.% to about 7wt.% 2 O 5 And TiO in the range of about 0wt.% to about 3wt.% 2 . The bioglass may be a lithium aluminosilicate glass or a sodium aluminosilicate glass.
Table 1 shows non-limiting exemplary glass compositions, as follows:
Wt.％ 1 2 3 4 5 6 7 8 9 10
SiO 2 59.00 55.70 59.67 59.04 59.04 59.01 59.70 58.67 58.74 59.70
Al 2 O 3 18.36 25.20 18.57 18.37 18.37 18.36 18.58 18.26 18.28 18.58
B 2 O 3 1.86 0.19 1.88 1.86 1.86 1.86 1.88 1.85 1.85 1.88
Li 2 O 3.06 3.66 3.09 3.06 3.06 3.06 3.10 3.04 3.05 3.10
Na 2 O 7.81 8.32 7.89 7.81 7.81 7.81 7.90 7.76 7.77 7.90
K 2 O 0.00 1.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MgO 0.00 0.21 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ZnO 4.29 0.01 4.34 4.29 4.29 4.29 4.34 4.26 4.27 4.34
ZrO 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SnO 2 0.185 0.150 0.188 0.186 0.186 0.186 0.167 0.184 0.185 0.17
Fe 2 O 3 0.078 0.094 0.061 0.000 0.000 0.060 0.022 0.113 0.000 0.019
CeO 2 1.110 0.000 0.000 1.112 1.112 1.111 0.000 1.613 1.620 0.000
P 2 O 5 4.26 5.39 4.31 4.26 4.26 4.26 4.31 4.24 4.24 4.31
TiO 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
in total 100.00 100.09 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
Table 1: exemplary glass compositions
Table 2 shows non-limiting exemplary glass compositions, as follows:
Wt.％ 11 12 13 14 15 16 17 18 19
SiO 2 61.95 61.79 61.99 61.58 60.49 60.46 60.48 62.10 62.07
Al 2 O 3 19.65 19.60 18.69 17.95 17.74 19.18 18.24 19.70 18.71
B 2 O 3 3.59 3.58 3.72 2.91 4.15 3.50 3.63 3.60 3.72
Li 2 O 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Na 2 O 13.06 13.03 13.99 14.75 13.84 12.75 13.64 13.10 14.01
K 2 O 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MgO 1.40 1.39 1.14 0.98 0.97 1.36 1.11 1.40 1.14
ZnO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ZrO 2 0.06 0.06 0.06 0.00 0.00 0.00 0.06 0.00 0.06
SnO 2 0.183 0.183 0.184 0.187 0.185 0.136 0.179 0.14 0.18
Fe 2 O 3 0.046 0.046 0.049 0.000 0.048 0.047 0.048 0.000 0.050
CeO 2 0.000 0.261 0.131 1.633 2.563 2.556 2.561 0.000 0.000
TiO 2 0.06 0.06 0.06 0.00 0.00 0.00 0.06 0.00 0.06
P 2 O 5 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
in total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.04 100.00
Table 2: exemplary glass compositions
Table 3 shows non-limiting exemplary glass compositions, as follows:
Wt.％ 20(173) 21 22 23 24 25 26 27 28
SiO 2 62.09 62.00 62.60 62.12 61.87 62.00 48.11 52.95 52.56
Al 2 O 3 18.72 18.69 18.25 18.22 19.63 19.00 26.04 19.97 26.07
B 2 O 3 3.72 3.72 2.96 4.26 3.99 3.70 4.28 4.54 4.29
Li 2 O 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Na 2 O 14.01 13.99 15.00 14.22 13.41 13.80 18.54 15.39 13.96
K 2 O 0.00 0.00 0.00 0.00 0.00 0.00 0.10 3.86 0.20
MgO 1.14 1.14 1.00 1.00 0.92 1.15 0.67 0.75 0.67
ZnO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ZrO 2 0.06 0.06 0.00 0.00 0.00 0.06 0.00 0.00 0.00
SnO 2 0.184 0.18 0.19 0.19 0.19 0.18 0.05 0.05 0.05
Fe 2 O 3 0.022 0.02 0.00 0.00 0.00 0.05 0.00 0.00 0.00
CeO 2 0.000 0.130 0.000 0.000 0.000 0.000 0.000 0.000 0.000
TiO 2 0.06 0.06 0.00 0.00 0.00 0.06 0.00 0.00 0.00
P 2 O 5 0.00 0.00 0.00 0.00 0.00 0.00 2.21 2.48 2.21
total of 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
Table 3: exemplary glass compositions
Table 4 shows non-limiting exemplary glass compositions as follows:
Figure BDA0003725452020000071
Figure BDA0003725452020000081
table 4: exemplary glass compositions
In an exemplary embodiment, the glass composition of glass sample 7 includes about 59.70wt.% SiO 2 (ii) a About 18.58wt.% Al 2 O 3 (ii) a About 1.88wt.% of B 2 O 3 (ii) a About 3.10wt.% Li 2 O; about 7.90wt.% Na 2 O; about 4.34wt.% ZnO; about 0.167wt.% SnO 2 (ii) a About 0.022wt.% Fe 2 O 3 And about 4.31wt.% P 2 O 5 。
In another exemplary embodiment, the glass composition of glass sample 14 includes about 61.58wt.% SiO 2 (ii) a About 17.95wt.% Al 2 O 3 (ii) a About 2.91wt.% of B 2 O 3 (ii) a About 14.75wt.% Na 2 O; about 0.98wt.% MgO; about 0.187wt.% SnO 2 And about 1.633wt.% CeO 2 。
Glass compositions with good UV and blue blocking properties should also have higher intensities. Accordingly, ion exchanged glasses are described to achieve high strengthening characteristics and better service life. Likewise, it has been found that the glass synergistically increases the blocking of uv and blue light after subsequent ion exchange at elevated temperatures using a combination of potassium and silver salts.
The glass may be subjected to a single ion exchange process or a dual ion exchange process. In one embodiment, the ion exchange process is based on the size of the ions. When the larger ions exchange for the smaller ions in the glass, the larger ions fill the surface area previously occupied by the smaller ions, thereby creating a compressive stress on the surface of the glass material, which corresponds to an increase in the strength of the glass. The usual procedure is to immerse the glass in a molten salt bath of an alkali metal inorganic salt or a mixture of alkali metal inorganic salts with other inorganic salts. The immersion time is sufficient to cause this exchange at only the surface layer of the glass article. The high compressive stress achieved by the ion exchange process helps the glass withstand a greater amount of device drop before failure. Furthermore, an increase in the compressive stress of the glass exhibits high crack resistance. Thus, the glass produced by the present invention may have better durability, high crack resistance, high retained strength after failure, and high impact strength.
In one embodiment, when the glass is a lithium aluminosilicate glass, the glass may be subjected to a dual ion exchange process followed by a silver ion exchange process. The dual ion exchange process of the present invention includes a first step of ion exchanging lithium ions present in the glass composition with sodium ions. Further, the second step describes ion exchanging sodium ions with potassium ions present in the glass composition. The dual ion exchange process not only increases the blocking characteristics of the glass, but also provides suitable strength to the bioglass composition. The dual ion-exchangeable glass may then be added to a silver salt bath to perform the silver ion exchange process.
In another embodiment, when the glass is a lithium-free aluminosilicate glass, the glass can be subjected to a single ion exchange process followed by a silver ion exchange process. The single ion exchange process of the present invention includes the step of ion exchanging sodium ions with potassium ions present in the glass composition. This single ion exchange process not only increases the blocking characteristics of the glass, but also provides suitable strength to the bioglass composition. The single ion exchangeable glass may then be added to a silver salt bath to perform the silver ion exchange process.
Table 5 shows exemplary samples describing a dual ion exchange process and an antimicrobial exchange process for glass sample 7 having a thickness of 0.7mm and having a corresponding depth of layer (DOL _ ZERO), compressive Stress (CS), central Tension (CT), wt.% of Ag in the glass, and Ag depth for each step.
Figure BDA0003725452020000091
Table 5: exemplary sample of ion exchange Process with DOL and CS for each step
In an embodiment, glass sample 7 is formed from a glass composition that includes about 59.70wt.% SiO 2 About 18.58wt.% Al 2 O 3 About 1.88wt.% of B 2 O 3 About 3.10wt.% Li 2 O, about 7.90wt.% Na 2 O, about 4.34wt.% ZnO, about 0.167wt.% SnO 2 About 0.022wt.% Fe 2 O 3 And about 4.31wt.% P 2 O 5 . Glass sample 7 was a lithium aluminosilicate glass. The strengthening of the lithium aluminosilicate glass is preferably performed by a double ion exchange process. In addition, glass sample 7 was subjected to a silver ion exchange process to obtain antimicrobial properties. In an exemplary embodiment, the first ion-exchanged salt bath comprises 40wt.% NaNO 3 And 60wt.% KNO 3 . The glass substrate of glass sample 7 was immersed in the salt bath at a temperature of 390 ℃ for a period of 4 hours. The glass substrate was subjected to a compressive stress of 89.46MPa corresponding to a depth of 158.99 μm. After being immersed in the first ion-exchanged salt bath, the glass substrate is further subjected to a second ion-exchange treatment. The second ion-exchanged salt bath comprised 100wt.% KNO 3 . The glass substrate was immersed in the salt bath at a temperature of 390 ℃ for 12 minutes. The glass substrate was subjected to a compressive stress of 1291.16MPa corresponding to a depth of 8.55 μm. Further, the two-step ion-exchanged glass substrate was subjected to a silver ion-exchange process in which the glass substrate was immersed in a solution containing 100wt.% KNO 3 And 0.066wt.% AgNO 3 In a salt bath of (a), maintained at a temperature of 390 ℃ for a period of 30 minutes. The glass substrate obtained 0.0326wt.% Ag at its surface.
Table 6 presents exemplary samples of the first step of the ion exchange process and the second step of the ion exchange process and the antimicrobial exchange process describing glass sample 7 having a thickness of 0.7mm and having a corresponding depth of layer (DOL _ ZERO), compressive Stress (CS), central Tension (CT), wt.% of Ag in the glass, and Ag depth for each step.
Figure BDA0003725452020000101
Table 6: exemplary sample of ion exchange Process with DOL and CS for each step
In an embodiment, glass sample 7 is formed from a glass composition that includes about 59.70wt.% SiO 2 About 18.58wt.% Al 2 O 3 About 1.88wt.% of B 2 O 3 About 3.10wt.% Li 2 O, about 7.90wt.% Na 2 O, about 4.34wt.% ZnO, about 0.167wt.% SnO 2 About 0.022wt.% Fe 2 O 3 And about 4.31wt.% P 2 O 5 . Glass sample 7 was a lithium aluminosilicate glass. Glass sample 7 was subjected to a first step ion exchange process and a combined second step ion exchange process and silver ion exchange process to obtain glass strengthening properties and antimicrobial properties. In an exemplary embodiment, the first ion-exchanged salt bath includes 40wt.% NaNO 3 And 60wt.% KNO 3 . The glass substrate of glass sample 7 was immersed in the salt bath at a temperature of 390 ℃ for a period of 4 hours. The glass substrate was subjected to a compressive stress of 101.90MPa corresponding to a depth of 144.04 μm. After being immersed in the salt bath of the first ion exchange treatment, the glass substrate is further subjected to a combined process of a second ion exchange treatment and a silver ion exchange treatment. The second ion-exchanged salt bath comprised 100wt.% KNO 3 And 0.005wt.% AgNO 3 . The glass substrate was immersed in the salt bath at a temperature of 390 ℃ for 42 minutes. Initially, the second ion exchange treatment was allowed to last 12 minutes. Therefore, the glass substrate was subjected to a compressive stress of 1228.64MPa corresponding to a depth of 9.08 μm. Subsequently, the silver ion exchange treatment was allowed to continue for 30 minutes. Thus, the glass substrate obtained 0.0026wt.% Ag at its surface.
Table 7 shows exemplary samples describing a single ion exchange process and an antimicrobial exchange process for glass sample 14 having a thickness of 0.7mm and having a corresponding depth of layer (DOL _ ZERO), compressive Stress (CS), central Tension (CT), wt.% of Ag in the glass, and Ag depth for each step.
Figure BDA0003725452020000111
Table 7: exemplary sample of ion exchange Process with DOL and CS for each step
In an embodiment, glass sample 14 is formed from a glass composition that includes about 61.58wt.% SiO 2 About 17.95wt.% Al 2 O 3 About 2.91wt.% of B 2 O 3 About 14.75wt.% Na 2 O, about 0.98wt.% MgO, about 0.187wt.% SnO 2 And about 1.633wt.% CeO 2 . Glass sample 7 was a soda-aluminosilicate glass. The glass sample 14 was subjected to a first step ion exchange process and a silver ion exchange process to obtain glass strengthening properties and antimicrobial properties, respectively. In an exemplary embodiment, the first ion-exchanged salt bath comprises 100wt.% KNO 3 . The glass substrate of glass sample 14 was immersed in the salt bath for a period of 250 minutes at a temperature of 430 ℃. The glass substrate was subjected to a compressive stress of 933.51MPa corresponding to a depth of 37.250 μm. Further, the two-step ion-exchanged glass substrate was subjected to a silver ion-exchange process in which the glass substrate was immersed in a solution containing 100wt.% KNO 3 And 0.005wt.% AgNO 3 The salt bath of (a), which is maintained at a temperature of 430 ℃ for a period of 30 minutes. The glass substrate yielded 0.0120wt.% Ag at its surface.
Table 8 presents exemplary samples of the ion exchange process and antimicrobial exchange process describing the first step of glass sample 14 having a thickness of 0.7mm and having a corresponding depth of layer (DOL _ ZERO), compressive Stress (CS), central Tension (CT), wt.% of Ag in the glass, and Ag depth for each step.
Figure BDA0003725452020000121
Table 8: exemplary sample of ion exchange Process with DOL and CS for each step
In one embodiment, glass sample 14 is formed from a glass composition that includes about 61.58wt.% SiO 2 About 17.95wt.% Al 2 O 3 About 2.91wt.% of B 2 O 3 About 14.75wt.% Na 2 O, about 0.98wt.% MgO, about 0.187wt.% SnO 2 And about 1.633wt.% CeO 2 . Glass sample 7 was a soda-aluminosilicate glass. The glass sample 14 was subjected to a combined process of a first ion exchange treatment and a silver ion exchange treatment. The salt bath of the combined process comprises 100wt.% KNO 3 And 0.005wt.% AgNO 3 . The glass substrate was immersed in the salt bath at a temperature of 450 ℃ for 240 minutes. Initially, the first ion exchange treatment was allowed to last 210 minutes. Therefore, the glass substrate was subjected to a compressive stress of 933.51MPa corresponding to a depth of 37.30 μm. Subsequently, the silver ion exchange treatment was allowed to last for 30 minutes. Thus, the glass substrate obtained 0.012wt.% Ag at its surface.
As described in tables 6 and 8, the ion exchange process can be combined with the antimicrobial ion exchange process to reduce additional steps of the ion exchange process. The method reduces the space of the setting unit and optimizes the production cost.
The term "antimicrobial agent" means an agent or material, or a surface containing an agent or material that kills or inhibits the growth of microorganisms from at least two families consisting of bacteria, viruses, and fungi. The surface concentration of antimicrobial silver ions refers to the concentration on the surface of the glass and is in μ g/cm 2 It is given. Logarithmic reduction (R) is a mathematical term used to denote the relative number of viable microorganisms eliminated by sterilization. It is expressed as:
R＝Log 10 (C a /C 0 )，
wherein C is a = Colony Forming Units (CFU) of the microorganism before treatment and C 0 = Colony Forming Units (CFU) of microorganisms after treatment. For example, a 1 log reduction corresponds to inactivation of 90% of the target microorganisms, while a 2 log reduction corresponds to inactivation of 99% of the target microorganisms. A very important and unique advantage of higher surface concentrations of silver is the reduction of bacterial "kill" time. Furthermore, the log reduction number depicts the resistance of the glass to microorganisms, in particular to bacteria.
Table 9 shows an exemplary sample of the antimicrobial test to which bioglass 7 having a thickness of 0.7mm was subjected to demonstrate its antimicrobial properties and the corresponding log reduction of bacteria and growth rate of fungi.
Figure BDA0003725452020000131
Table 9: exemplary samples for antimicrobial testing of bioglass
In an exemplary embodiment, glass sample 7 is formed from a glass composition that includes about 59.70wt.% SiO 2 About 18.58wt.% Al 2 O 3 About 1.88wt.% of B 2 O 3 About 3.10wt.% Li 2 O, about 7.90wt.% Na 2 O, about 4.34wt.% ZnO, about 0.167wt.% SnO 2 About 0.022wt.% Fe 2 O 3 And about 4.31wt.% P 2 O 5 . Glass sample 7 was initially subjected to a dual ion exchange process to strengthen its surface. Further, the ion-exchanged glass samples were immersed in an ion-exchange bath containing 0.066wt.% Ag. The glass substrate was subjected to a compressive stress of 1304.70MPa corresponding to a depth of 143.53 μm. Initially, ion exchanged glass sample 7 was subjected to a fungal test. Glass sample 7 was exposed to 8.0 * 10 5 To 1.2 * 10 6 Fungi in the range of cfu/ml last 28 days. The experimental results show that the growth rate of the fungus on the glass surface is zero. Thus, it can be said that the test results were acceptable because the antimicrobial properties of glass sample 7 inhibited the growth rate of fungi, thereby providing its resistance to fungi. Further, the ion-exchanged glass sample 7 was subjected to a bacterial test. Glass sample 7 was exposed to 1.1 * 10 4 cfu/cm 2 The bacteria within range (c) lasted for 24 hours. The experimental results show that the log reduction (R) is greater than 5.6, which is greater than the base log reduction (R) required for glass to exhibit antimicrobial properties. Thus, it can be said that the test results were acceptable because the antimicrobial property of glass sample 7 inhibited the growth of bacteria on its surface.
The present invention focuses on modifying the properties of bioglass compositions. Incorporating Fe in specific amounts 2 O 3 And CeO 2 Resulting in improved UV and blue blocking characteristics. Similarly, the presence of silver in the bioglass composition enhances the antimicrobial properties of the glass.
Table 10 shows different amounts of Fe 2 O 3 And CeO 2 Non-limiting exemplary cover glass compositions of components and their corresponding UV blocking%, blue blocking%, wt.% Ag in glass and FOMBFG values for glass.
Figure BDA0003725452020000132
Figure BDA0003725452020000141
Table 10: fe 2 O 3 And CeO 2 The number of components and their corresponding UV blocking% and blue blocking%
As indicated in Table 10, fe 2 O 3 Plays an important role in incorporating UV transmission characteristics into bioglass compositions. Fe 2 O 3 Is a component of dyed glass. Thus, to obtain suitable UV blocking properties while increasing transparency, 0 to 3wt.% Fe, in wt.% percent, is used 2 O 3 The content is preferable.
Further, ceO 2 Plays another important role in providing a strong blocking of UV light and a significant blocking of blue light. Preferably, ceO is present in the bioglass composition 2 The content is in the range of 0wt.% to 3wt.%.
Improvised changes in glass properties by changing the wt.% of the glass components result in an increase in UV and blue blocking properties. Fig. 1 shows a graph indicating the percent light transmission through various glass samples at wavelengths of 200nm to 1100 nm. The horizontal axis (X-axis) indicates the wavelength of light incident on the glass sample, while the vertical axis (Y-axis) indicates the% transmittance of light through the glass sample. The curves indicate various glass samples including glass sample 1, glass sample 2, glass sample 3, glass sample 4, glass sample 5, glass sample 6, glass sample 7, glass sample 8, glass sample 9, and glass sample 14. The% light transmission indicates the amount of light energy that passed through the glass sample. By comparing the curves from left to right, a significant decrease in the percentage of light transmission is observed for the right curves, especially from 250nm to 500nm. The rightmost curve represents a significant improvement in light absorption. The right curve represents better blocking of UV and blue light than the leftmost curve.
Table 11 defines the percent light transmission through various glass compositions at wavelengths from 200nm to 1100 nm.
Figure BDA0003725452020000142
Figure BDA0003725452020000151
Table 11: light transmittance through exemplary glass%
Table 11 precisely defines the percent values of light transmission through various glass samples depicted in the graph of fig. 1. Referring to fig. 1 and table 11, it was observed that the UV light transmittance at a wavelength of 380nm varied from about 90% to 22% according to the curves of different glass compositions from left to right. Thus, the curve reflects an increase in the UV light blocking percentage from about 10% to 78% at a wavelength of 380nm. Similarly, the blue light transmission at a wavelength of 430nm was observed to vary from about 90% to 60% according to a plot of different glass compositions from left to right. Thus, the curve reflects an increase in the percentage of blue blocking from about 10% to 40% at a wavelength of 430nm. The above description is one embodiment not intended to limit the scope of the present invention.
The UV blocking, blue blocking and antimicrobial glass of the present invention is useful as cover glass for displays and touch screens in a variety of electronic devices. The UV blocking properties of the glass protect the display from sunlight and increase the lifetime of the display. The blue blocking properties of the glass protect users from exposure to harmful blue light during long term use of these devices. The antimicrobial properties of glass make these electronic devices suitable for both personal and public use. Touch screen display glasses with antimicrobial properties can be used in a wide variety of devices such as kiosks and public tablet computers. Additionally, the spread of infection can be prevented during use of antimicrobial glass in medical centers and hospitals.
Bioglass can be used as a substrate for touch panel displays, such as Liquid Crystal Displays (LCDs), field Emission Displays (FEDs), plasma Displays (PDs), electroluminescent displays (ELDs), organic Light Emitting Diode (OLED) displays, micro-LEDs, etc., and as a back cover for such displays. Bioglass is used to protect electronic devices with display screens, such as mobile phones, entertainment devices, tablet computers, laptop computers, digital cameras, wearable devices, and the like.
In particular embodiments, bioglass is used as a protective/thermal shield associated with window glass, door glass, and architectural curtain wall glass to reduce interior temperatures. Additionally, bioglass can also be used as filters, filters and lenses for use in cameras and optical instruments to obtain sharp images. Also, bioglass can be used as an eyeglass lens for protecting the human eye.
While typical embodiments have been set forth for the purpose of illustration, the foregoing description should not be deemed to be a limitation on the scope of the disclosure or appended claims. Accordingly, various modifications, adaptations, and alternatives may occur to one skilled in the art without departing from the spirit and scope of the present disclosure.

Claims (7)

1. An ion-exchangeable aluminosilicate glass comprising:
SiO in the range of 40 to 70wt.% 2 ；
Al in the range of 5 to 35wt.% 2 O 3 ；
ZnO in the range of 0wt.% to 5 wt.%;
in the range of 0wt.% toFe in the range of 3wt.% 2 O 3 (ii) a And
CeO in the range of 0 to 3wt.% 2 ，
Wherein the glass has a bio-friendly glass quality factor FOMBFG coefficient of greater than or equal to 0.5 μ g/cm 2 And is less than or equal to 13,500. Mu.g/cm 2 The glass advantageously has Ultraviolet (UV) light blocking, blue light blocking, and antimicrobial properties, and wherein the FOMBFG is defined by the following expression:
FOMBFG = (UV-blocking at 380 nm%) * (blue light blocking% at 430 nm) * (Ag concentration at the surface of the glass).
2. The ion-exchangeable aluminosilicate glass of claim 1, further comprising:
b in the range of 0 to 10wt.% 2 O 3 ；
Li in the range of 0 to 10wt.% 2 O；
Na in the range of 5 to 25wt.% 2 O；
K in the range of 0 to 5wt.% 2 O；
MgO in the range of 0 to 7 wt.%;
ZrO in the range of 0 to 5wt.% 2 ；
SnO in the range of 0 to 2 wt% 2 ；
P in the range of 0 to 7wt.% 2 O 5 (ii) a And
TiO in the range of 0 to 3wt.% 2 。
3. The ion-exchangeable aluminosilicate glass of claim 1, wherein the aluminosilicate glass is subjected to a single ion exchange process or a combination of a dual ion exchange process and a silver ion exchange process.
4. The ion-exchangeable aluminosilicate glass of claim 3, wherein a silver (Ag) concentration of the aluminosilicate glass is in a range from 0.001wt.% to 3wt.% when the aluminosilicate glass is subjected to the silver ion exchange process.
5. The ion-exchangeable aluminosilicate glass of claim 1, wherein the aluminosilicate glass exhibits a minimum of 9% of UV light blocking characteristics that block UV light having a wavelength of 380nm.
6. The ion-exchangeable aluminosilicate glass of claim 1, wherein the aluminosilicate glass exhibits a minimum of 8% of blue light blocking characteristics that block blue light at a wavelength of 430nm.
7. The ion-exchangeable aluminosilicate glass of claim 1, wherein the ZnO provides antimicrobial properties to the aluminosilicate glass.
CN202210773592.5A 2021-07-01 2022-07-01 Chemically strengthened UV and blue blocking antimicrobial bioglass Pending CN115557696A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121024457 2021-07-01
IN202121024457 2021-07-01

Publications (1)

Publication Number Publication Date
CN115557696A true CN115557696A (en) 2023-01-03

Family

ID=84736795

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210773592.5A Pending CN115557696A (en) 2021-07-01 2022-07-01 Chemically strengthened UV and blue blocking antimicrobial bioglass

Country Status (2)

Country Link
CN (1) CN115557696A (en)
TW (1) TW202308953A (en)

Also Published As

Publication number Publication date
TW202308953A (en) 2023-03-01

Similar Documents

Publication Publication Date Title
US11498865B2 (en) UV blocking for improved transmission glasses
US8869558B2 (en) Glass substrate for display cover glass and its production process
TWI635063B (en) Phosphorous containing glass having antimicrobial efficacy
JP5589379B2 (en) Manufacturing method of glass substrate for display cover glass
US20160280592A1 (en) Antimicrobial glass articles with improved strength and methods of making and using same
US9567259B2 (en) Antimicrobial glass articles and methods of making and using same
JP2017511785A (en) Glass with enhanced strength and antibacterial properties and method for producing the same
US10723652B2 (en) Tempered and colorless antimicrobial soda lime glass and methods of making and using same
US10683234B2 (en) Methods of making antimicrobial glass articles
US10865134B2 (en) Glass
WO2022059326A1 (en) Crystallized glass and reinforced crystallized glass
CN115557696A (en) Chemically strengthened UV and blue blocking antimicrobial bioglass
US20210161148A1 (en) Antimicrobial phase-separating glass and glass ceramic articles and laminates
DE102013109087B3 (en) Flat glass with filtering effect, process for its production, use and layer composite
US9938182B2 (en) Ultraviolet absorbing glass and articles thereof
EP4039661B1 (en) X-ray shielding glass and glass component
TW201821380A (en) Glasses having resistance to photo-darkening
JP2018052780A (en) Glass tube

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication