HK1191635B - Ultraviolet ray and infrared ray-absorbing glass composition and application thereof - Google Patents

Description

Glass composition absorbing ultraviolet and infrared rays and its application

Technical Field

The present invention relates to a glass composition, in particular to a glass composition capable of strongly absorbing ultraviolet rays and infrared rays and its application.

Background Art

Due to global warming, foreign companies, represented by the American PPG company, have invested a lot of research in the field of ultraviolet and near-infrared insulating glass, and have applied for more than 300 patents in this regard internationally. Among them, Japan has applied for more than 100 in this field, accounting for one-third of the world's patents in the field of glass energy-saving and emission reduction technology. The main companies applying for patents in Japan include CENTRA, GLASS, CLLTD, NIPPON SHEETGLASS COLTD and ASAHIGIASS.

The ultraviolet and near-infrared absorbing glass system developed by Nippon Sheet Glass Co., Ltd. is soda-lime-silica alkaline glass with a coloring component of 0.4-0.58 _{% Fe2O3} , of which FeO accounts for 20-30% of the total iron content, _CeO2 is 0.8-1.8%, _TiO2 is 0-0.5%, and CoO is 0.0001-0.002%. The glass has a visible light transmittance of 75-79% at a thickness of 2mm, an ultraviolet transmittance of 20-25%, and a total solar energy transmittance of 52-55%. It has certain heat insulation and UV protection effects. However, due to the difficulty of ferrous oxide manufacturing process and the scarcity of rare earth cerium oxide in Japan, the cost is too high to implement mass production.

The British company Pilkington has applied for a patent for a glass composition (Chinese patent application number 94191094.6). This soda-lime-silica glass, which can absorb infrared and ultraviolet rays, has _{an Fe2O3} content of 0.25-1.75%, but the FeO content is only 0.007, so it cannot absorb infrared rays. The visible light transmittance of 4mm thick glass is only 32%, the total solar energy transmittance is ≥50%, and the ultraviolet transmittance is ≤25%.

Most patents for soda-lime-silica glass compositions use colorants such as iron, cobalt, chromium, manganese, chromium, and titanium. Their characteristic color wavelength is between 480 and 510 nm, with a color purity of no more than 20%. The UV transmittance of 5 mm thick glass is between 25 and 35%, the near-infrared transmittance is between 20 and 25%, and the total solar energy transmittance is between 46 and 50%. Due to the difficulty of FeO manufacturing, mass production is not feasible.

PPG of the United States has applied for patents US4381934, US4886539, US4792536 and 97113805, etc., and invented a method for manufacturing super-absorbent float glass with multiple independent stages of melting and clarification. Its characteristics are that it can effectively control the redox reaction conditions to produce super-absorbent glass with FeO greater than 50%, high visible light transmittance and low infrared transmittance. It has also applied for a patent in China, the invention name is infrared and ultraviolet radiation absorbing blue glass composition (application number 98810129.7), with a high FeO ratio. The visible light transmittance (LTA) of 4mm thick green glass is 72.5%, the infrared transmittance (TSIR) is 21%, and the total solar energy transmittance (TSET) is 47.5%. The visible light transmittance (LTA) of 4mm thick blue glass is 75%, the infrared transmittance (TSIR) is 17.5%, and the total solar energy transmittance (TSET) is 49.5%. It can be produced using the traditional float process. This is a patented technology for super heat-absorbing glass that currently represents the highest level in the world's glass industry, but it is not yet an ideal super heat-absorbing glass.

Ford Motor Company in the United States has developed a nitrate-free method for preparing a blue glass composition (Patent No. 98808824). The basic colorant composition of this blue glass composition is _Fe2O3 : _0.4 %, MnO2: 0.15%; CoO: 0.005-0.025%; TiO2: 0-1%, and anthracite as a reducing agent. This blue glass has a visible light transmittance (LTA) between 50% and 68% at a thickness of 4mm, an infrared transmittance (TSIR) of 21-30%, an ultraviolet transmittance (TSUV) of 25-40%, and a total solar energy transmittance (TSET) of 48-50%.

Japan Central Glass Co., Ltd. has applied for a patent for ultraviolet and infrared absorbing green glass (200480031885.6). The main wavelength of the ultraviolet and infrared absorbing green glass is 550-570nm, the visible light transmittance is 70%, the ultraviolet transmittance is 20%, and the _{infrared transmittance is 25%. Its colorants are Fe2O3 :} 0.3-0.5%, _CeO2 : 0.8-2%, SnO: 0.1-0.7%; _TiO2 : 0.8-2%.

Saint-Gobain Glass of France has applied for a glass composition for manufacturing ultraviolet and infrared absorbing windows (Patent No. 200680011222.7): _SiO₂ : 65-80%, _Al₂O₃ : 0-5%, _B₂O₃ : 0-5%, _CaO : 5-15%, MgO: 0-2%, _Na₂O : 9-18%, K₂O: 0-10%, BaO: 0-5%, _Fe₂O₃ : 0.7-1.6%, CeO: 0.1-1.2%, _TiO₂ : 0-1.5%. The redox ratio is less than 0.23. This glass has a visible light transmittance (LTA ₎ of ≥70% at a thickness _of 4mm, an infrared transmittance of 28%, an ultraviolet transmittance of 18%, and a total solar energy transmittance (TSET) of ≥48%. However, due to its high iron content, the temperature difference between the upper _and lower glass molten layers is nearly 300°C, making the molding process difficult and prohibiting mass production.

Domestic patents for heat-absorbing glass: Research on ultraviolet and near-infrared absorbing glass in my country is extremely limited. Most recent Chinese patents violate or deviate from the spectral lattice structure and molding technology of soda-lime silicate glass, making them unviable. Shanghai Yaohua Pilkington Glass Company holds the patent for "Green Glass with Strong UV and Infrared Absorption" (Patent No. 03117080.3). This glass is dark green, has an ultraviolet transmittance (TSUV) of 17%, an infrared transmittance (TSIR) of 28%, and a visible light transmittance (LTA) below 70%. It contains 0.5-0.9% iron. However, due to the relatively low Fe+2 content of 18-28% in the total iron content and the low COD chemical oxygen value, the large temperature difference between the upper and lower parts of the glass melt makes the molding process difficult and unviable. Furthermore, its heat absorption performance is poor.

Shenzhen CSG Group has applied for "green glass with selective absorption of the solar spectrum" (application number: 200410051479.8). This glass has a visible light transmittance (LTA) ≥70%, an ultraviolet transmittance (TSUV) ≤16%, poor absorption of near-infrared rays, a total solar energy transmittance ≥50%, and a dominant wavelength of 495-520nm.

Luoyang Float Glass Group has applied for a "green glass colorant for automobiles" (application number: 200510107206.5), in which _Fe2O3 is used at a dosage of 0.4-1.5%, and divalent iron Fe ⁺² _only accounts for 25-40% of the total iron content. It cannot significantly absorb near-infrared rays, has a visible light transmittance of ≥70%, an ultraviolet transmittance of ≤15%, and a total solar energy transmittance of ≥50%, resulting in poor thermal insulation.

Fuyao Glass Group has applied for a _patent for "UV-resistant soda-lime-silica glass" (application number 200810072276.5). This glass has an _Fe₂O₃ content of 0.3-1.1%, a redox coefficient of only 0.22-0.36, a visible light transmittance of ≥70%, a UV transmittance of ≤15%, and poor near-infrared absorption. A patent for infrared-insulating, heat-absorbing float glass (application number 201110189471.8) has also been filed. However, due to high _SnO₂ and ZnO content, the glass surface is prone to defects, making float glass impossible to form. Furthermore, the glass's visible light transmittance is severely affected, resulting in suboptimal thermal insulation.

In summary, current technology for super-absorbent glass, both domestically and internationally, is limited to the misconception of using only ferrous oxide to reduce near-infrared transmittance. This is difficult to achieve with currently available technologies. In physical linear optics, it is extremely difficult to transmit light in a certain wavelength range while absorbing light in other wavelengths. Simply adding large amounts of ferric oxide to the glass to increase the Fe ⁺² iron ion content significantly reduces the glass's visible light transmittance and easily stains the glass amber, affecting its aesthetics. Only by increasing the ratio of Fe ⁺² ions to the total iron content in the glass to 40-80% can a vibrant, beautiful, and highly near-infrared-absorbing insulating glass be produced.

Summary of the Invention

The problem to be solved by the present invention is to provide a glass composition that improves the glass's absorption effect on ultraviolet rays and infrared rays. By adding a glass body coloring and coordinating portion containing a certain amount of rare metal and rare earth metal compounds to the glass composition, a glass composition with high thermal insulation and high light transmittance is obtained.

The present invention provides a glass composition for absorbing ultraviolet and infrared rays, comprising the following glass basic components and a glass body _coloring coordination part for absorbing ultraviolet and infrared rays, wherein the glass basic components are (by weight): _SiO2 : 60-75%; _Na2O : 8-20%; CaO: 3-12%; _Al2O3 : 0.1-5%; MgO: _2-5 %; K2O: 0.02-7%; BaO: 0.1-5%; SO3: 0.01-0.4%; the glass body _coloring coordination part is: _Fe2O3 : 0.22-1.35%; _ZrO2 + _HfO2 : 0.001-0.8%; Cl: 0-0.5%; _{B2O3 :} 0-2%; _TiO2 : 0.01-0.8%; CuO: 0.001-0.06%; Br: 0-2.0%; MnO: 0-0.02%; F: 0-2.0%; SrO: 0.001-0.5%; CeO ₂ : 0.005-2.2%. Preferably, the ultraviolet and infrared absorbing glass body color coordination component further includes the following auxiliary components (by weight): WO ₃ : 0-0.01%; P ₂ O ₅ : 0-0.3%; ZnO: 0-0.03%; Cr ₂ O ₃ : 0-0.015%; Sb ₂ O ₃ : 0-0.1%.

When the thickness of the glass composition is 2.0-5.0 mm, the glass body coloring coordination part that absorbs ultraviolet and infrared _rays includes the following components (by weight): _Fe2O3 : 0.5-1.2%; _ZrO2 + _HfO2 : 0.002-0.5%; Cl: 0-0.3%; _B2O3 : _0-1 %; _TiO2 : 0.01-0.5%; CuO: 0.002-0.01%; Br: 0-1.5%; MnO: 0-0.015%; F: 0-1.8%; SrO: 0.002-0.2%; _CeO2 : 0.01-1.8%.

Wherein, when preparing the above glass composition, the redox ratio of Fe ₂ O ₃ in the glass composition is controlled to be 0.4-0.8.

Specifically, when preparing glasses of different thicknesses, the color coordination part of the glass body may further include the following auxiliary components in addition to the above-mentioned main components: when the thickness of the glass composition is 2.0 mm, the auxiliary components include (by weight): WO ₃ : 0.003-0.01%; P ₂ O ₅ : 0.01-0.1%; ZnO: 0.01-0.03%; Cr ₂ O ₃ : 0.005-0.015%; Sb ₂ O ₃ : 0.02-0.1%; when the thickness of the glass composition is 4.0 mm, the auxiliary components include (by weight): WO ₃ : 0.005-0.01%; P ₂ O ₅ : 0.01-0.05%; ZnO: 0.005-0.03%; Cr ₂ O ₃ : 0-0.015%; Sb ₂ O ₃ : 0.01-0.05%; when the thickness of the glass composition is 5.0 mm, the auxiliary components include (by weight): WO ₃ : 0-0.01%; P ₂ O ₅ : 0.01-0.05%; Sb ₂ O ₃ : 0.01-0.05%.

When the thickness of the glass composition is 2 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of ≥78.1% in the range of 400-700 nm; a solar white balance transmittance of ≥73.2% in the range of 400-760 nm; a harmful ultraviolet transmittance of ≤0.2% in the range of 200-300 nm; a transmittance in the erythema effect zone of ≤3% in the range of 300-360 nm; a beauty and health ultraviolet transmittance of ≤30% in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of ≤16.5% in the range of 800-2500 nm; a total solar energy transmittance of ≤39.3% in the range of 300-2500 nm, a color purity of ≥10%, and a shielding factor of ≤0.62;

When the thickness of the glass composition is 4 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of ≥73.2% in the range of 400-700 nm; a solar white balance transmittance of ≥70.8% in the range of 400-760 nm; a harmful ultraviolet transmittance of ≤0.1% in the range of 200-300 nm; a transmittance in the erythema effect zone of ≤3% in the range of 300-360 nm; a beauty and health ultraviolet transmittance of ≤30% in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of ≤13% in the range of 800-2500 nm; a total solar energy transmittance of ≤35% in the range of 300-2500 nm, a color purity of ≥12%, and a shielding factor of ≤0.54;

When the thickness of the glass composition is 5 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 74.6% or more in the range of 400-700 nm; a solar white balance transmittance of 70.13% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 300-360 nm or less; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 12% or less in the range of 800-2500 nm; a total solar energy transmittance of 34.5% or less in the range of 300-2500 nm, a color purity of 15% or more, and a shielding coefficient of 0.53 or less.

When the thickness of the glass composition is 6-15 mm, the Fe ₂ O ₃ content in the coloring and coordination portion of the glass body that absorbs ultraviolet and infrared rays is 0.22-0.5%.

When the thickness of the glass composition is 6 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 69.2% or more in the range of 400-700 nm; a solar white balance transmittance of 63.8% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 2% or less in the range of 300-360 nm; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 14.1% or less in the range of 800-2500 nm; a total solar energy transmittance of 37.3% or less in the range of 300-2500 nm, a color purity of 12% or more, and a shielding coefficient of 0.52 or less.

When the thickness of the glass composition is 12 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 68.9% or more in the range of 400-700 nm; a solar white balance transmittance of 64.5% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 2% or less in the range of 300-360 nm; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 14.5% or less in the range of 800-2500 nm; a total solar energy transmittance of 33.3% or less in the range of 300-2500 nm, a color purity of 12% or more, and a shielding coefficient of 0.52 or less.

In the present invention, the glass composition does not contain any one or more of Ni, Cd, As, Pb, and Be, thereby preventing the glass from forming nickel sulfite stones, which may cause spontaneous cracking of the glass during the tempering process or during long-term use due to thermal expansion and contraction, thereby ensuring the safety of the glass.

The ultraviolet and infrared absorbing glass composition of the present invention is used for building door and window glass, curtain wall glass, ceiling lighting, heat-insulating and rain-proof glass, vehicle windows, or bulletproof glass. The vehicle windows are made from at least one tempered glass composition, or from at least one glass composition laminated with at least one piece of conventional float or grid glass. In one embodiment of the present invention, the vehicle window is a windshield, and has a visible light transmittance of ≥70%, a spectral transmittance of ≥50% for red light at a wavelength of approximately 620 nm, a spectral transmittance of ≥60% for yellow light at a wavelength of approximately 588 nm, and a spectral transmittance of ≥75% for green light at a wavelength of approximately 510 nm. This allows for clear distinction between red, yellow, and green traffic lights at intersections, reduces glare at 555 nm, which is the wavelength to which the human eye is most sensitive, and adapts to the cone cells in the human retina to distinguish the distinct colors of red, yellow, and green traffic lights, thereby reducing visual fatigue and preventing traffic accidents. Similarly, the bulletproof and heat-insulating glass can also be laminated with at least one glass composition and conventional bulletproof glass.

Compared with the prior art, the glass composition for absorbing ultraviolet and infrared rays of the present invention is mixed with a part for absorbing ultraviolet and infrared rays and coloring coordination of the glass body into the glass base component. ⁺² iron ions are used as the skeleton base center coloring, and the glass body coloring is coordinated with the multi-component complementation of the parts. Unique components are used in the glass composition, and a certain amount of rare metal and rare earth metal compounds are added. This breaks through the various limitations of existing insulating glass, and reasonably controls the chemical oxygen demand (COD value) of the raw materials, controls the redox ratio, and gives full play to the characteristics of each element. It effectively blocks ultraviolet rays, infrared rays and total energy, while improving the transmittance of visible light, and obtains a good spectral balance between heat energy blocking and visible light transmission to obtain insulating glass that can strongly absorb ultraviolet rays and near-infrared rays. In terms of thermal insulation performance, it has made great breakthroughs compared with existing insulating glass. At the same time, its physical and chemical properties, mechanical strength, environmental stability and durability are 1.3 to 1.5 times that of ordinary glass. During deep processing and use, the optical properties of the finished glass will not change due to tempering and long-term light exposure, and will not affect the transmittance of its optical properties such as LTA, LTS, TSUV, TSIR and TSET. It has stable physical and chemical properties and excellent safety performance. It is used in various fields such as car window glass, building curtain wall glass, etc. It has excellent thermal insulation effect, can greatly reduce the temperature indoors or inside the car, and has a significant effect of cooling, energy saving and emission reduction, making outstanding contributions to the green earth.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an infrared spectrum of Example 1 and Comparative Example 1 of a 2 mm thick glass composition of the present invention;

FIG2 is an infrared spectrum of Example 2 of a 4 mm thick glass composition of the present invention;

FIG3 is an infrared spectrum of Example 2 and Comparative Example 2 of a 4 mm thick glass composition of the present invention;

FIG4 is an infrared spectrum of Example 3 and Comparative Example 3 of the 5 mm thick glass composition of the present invention

FIG5 is an infrared spectrum of Example 4 and Comparative Example 4 of a 6 mm thick glass composition of the present invention;

FIG6 is an infrared spectrum of Example 4 and Comparative Example 4 of the 12 mm thick glass composition of the present invention;

FIG7 is a comparison of infrared spectra of the glass composition of the present invention and other existing glasses;

FIG8 is a comparison of infrared spectra of a 4 mm thick glass composition of the present invention and hollow Low-E glass;

The above spectrum comparison chart uses waveform data measured by the Lambda-950 infrared spectrometer of PE Company in the United States.

DETAILED DESCRIPTION

In order to improve the absorption effect of glass on ultraviolet rays and infrared rays, the present invention provides a glass composition that absorbs ultraviolet rays and infrared rays, which includes a glass base component and a coloring and coordination part for absorbing the ultraviolet rays and infrared rays glass body. The coloring and coordination part for absorbing the ultraviolet rays and infrared rays glass body is mixed into the glass base component to significantly enhance the absorption and blocking effect of the glass on ultraviolet rays and infrared rays.

The glass composition comprises the following glass basic components and a glass body coloring coordination part for absorbing ultraviolet and infrared rays, wherein the glass basic components are (by weight ratio): _SiO2 : 60-75%; _Na2O : 8-20%; _CaO : 3-12%; _Al2O3 : 0.1-5%; MgO: 2-5%; _K2O : 0.02-7%; BaO: 0.1-5%; _SO3 : 0.01-0.4%; the glass body coloring coordination part is: _Fe2O3 : _0.22-1.35 %; _ZrO2 + _HfO2 : 0.001-0.8%; Cl: 0-0.5% _{; B2O3} : 0-2%; _TiO2 : 0.01-0.8%; CuO: 0.001-0.06%; Br: 0-2.0%; MnO: 0-0.02%; F: 0-2.0%; SrO: 0.001-0.5%; CeO ₂ : 0.005-2.2%. In the present invention, the redox ratio of Fe ₂ O ₃ in the glass composition is controlled to be 0.4-0.8.

In a preferred embodiment of the present invention, the glass body color coordination part, in addition to the above main components, may further include the following auxiliary components (weight ratio): WO ₃ : 0-0.01%; P ₂ O ₅ : 0-0.3%; ZnO: 0-0.03%; Cr ₂ O ₃ : 0-0.015%; Sb ₂ O ₃ : 0-0.1%.

In a preferred embodiment of the present invention, when the glass composition has a thickness of 2.0-5.0 mm, the essential components of the glass bulk coloring and harmonizing portion that absorbs ultraviolet and infrared rays include (by weight): _Fe₂O₃ : _0.5-1.2 %; _ZrO₂ + _HfO₂ : 0.002-0.5%; Cl: 0-0.3%; _B₂O₃ : 0-1%; _TiO₂ : 0.01-0.5%; _CuO : 0.002-0.01%; Br: 0-1.5%; MnO: 0-0.015%; F: 0-1.8%; SrO: 0.002-0.2%; and _CeO₂ : 0.01-1.8%. When the glass composition has a thickness of 6-15 mm, the _Fe₂O₃ content of the glass bulk coloring and harmonizing portion that absorbs ultraviolet and infrared _rays is 0.22-0.5%.

In this embodiment, the components representing the near-infrared ray coordination absorption portion of the glass body color coordination portion (by weight ratio) are: Fe ₂ O ₃ : 0.22-1.35%; SrO: 0.002-0.1%; CeO ₂ : 0.01-1.8%; F: 0-1.8%; ZrO ₂ + Hfo ₂ : 0.002-0.5%; Cl: 0.001-0.1%; B ₂ O ₃ : 0.01-0.8%; CuO: 0.003-0.01%; Br: 0-1%; MnO: 0-0.015%. The following optional components may also be included (by weight ratio): WO ₃ : 0-0.01%;

The components representing the ultraviolet absorption part (weight ratio) are: CeO ₂ : 0.01-1.8% and TiO ₂ : 0.01-0.5%. The following optional components (weight ratio) may also be included: ZnO: 0-0.03%; Cr ₂ O ₃ : 0-0.003%; Sb ₂ O ₃ : 0-0.1%.

The components representing the coordination portion in the visible light region (by weight): MnO: 0-80 ppm; ZrO ₂ +Hfo ₂ : 0.002-0.5%; SrO: 0.002-0.1%. The following optional components (by weight) may also be included: P ₂ O ₅ : 0-0.3%.

The following lists the auxiliary components used in the color coordination portion of the glass bulk when preparing glass compositions with thicknesses of 2 mm _, 4 mm, and 5 mm, respectively. When the glass composition has a thickness of 2 mm, the auxiliary components include (by _weight ): _WO₃ : 0.003-0.01%; _P₂O₅ : 0.01-0.1%; ZnO: 0.01-0.03%; _Cr₂O₃ : 0.005-0.015%; _{and Sb₂O₃} : 0.02-0.1%. When the thickness of the glass composition is 4.0 mm, the auxiliary components include (by weight): WO ₃ : 0.005-0.01%; P ₂ O ₅ : 0.01-0.05%; ZnO: 0.005-0.03%; Cr ₂ O ₃ : 0-0.015%; Sb ₂ O ₃ : 0.01-0.05%; when the thickness of the glass composition is 5.0 mm, the auxiliary components include (by weight): WO ₃ : 0-0.01%; P ₂ O ₅ : 0.01-0.05%; Sb ₂ O ₃ : 0.01-0.05%.

The spectral performance parameter ranges of the glass compositions of various thicknesses according to the present invention are listed below.

The spectral performance parameters listed include: visible light transmittance (LTA); solar white balance transmittance (LTS); harmful ultraviolet (UVc) transmittance (TSUVc); erythema effect area (TSUVB); beauty and health ultraviolet (UVa ₎ transmittance (TSUVA); near-infrared (IR) transmittance (TSIR); total solar energy transmittance (TSET); color purity; and obscuration factor. Traditionally, the solar white balance region is defined as 380-780nm. However, modern medicine has confirmed that the human eye's visual acuity coefficient is shown in Table 1. Therefore, modern medicine defines the solar white balance region as 400-760nm.

Table 1 V(λ) values in the visible spectrum

λ/nm V(λ) λ/nm V(λ) 400 0.0004 580 0.870 410 0.0012 590 0.757 420 0.0040 600 0.630 430 0.0116 610 0.503 440 0.0230 620 0.381 450 0.0380 630 0.265 460 0.0600 640 0.175 470 0.0910 650 0.107 480 0.1390 660 0.061 490 0.208 670 0.032 500 0.323 680 0.017 510 0.503 690 0.0082 520 0.710 700 0.0041 530 0.860 710 0.0021 540 0.954 720 0.0010 550 0.995 730 0.00052 555 1.000 740 0.00025 560 0.995 750 0.00012

570 0.952 760 0.00006

V(λ)=1（λ=555nm）；V(λ)﹤1（λ≠555nm）；V(λ)=0（λ is not in the visible light region）

When the thickness of the glass composition is 2 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of ≥78.1% in the range of 400-700 nm; a solar white balance transmittance of ≥73.2% in the range of 400-760 nm; a harmful ultraviolet transmittance of ≤0.2% in the range of 200-300 nm; a transmittance in the erythema effect zone of ≤3% in the range of 300-360 nm; a beauty and health ultraviolet transmittance of ≤30% in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of ≤16.5% in the range of 800-2500 nm; a total solar energy transmittance of ≤39.3% in the range of 300-2500 nm, a color purity of ≥10%, and a shielding factor of ≤0.62;

When the thickness of the glass composition is 4 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of ≥73.2% in the range of 400-700 nm; a solar white balance transmittance of ≥70.8% in the range of 400-760 nm; a harmful ultraviolet transmittance of ≤0.1% in the range of 200-300 nm; a transmittance in the erythema effect zone of ≤3% in the range of 300-360 nm; a beauty and health ultraviolet transmittance of ≤30% in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of ≤13% in the range of 800-2500 nm; a total solar energy transmittance of ≤35% in the range of 300-2500 nm, a color purity of ≥12%, and a shielding factor of ≤0.54;

When the thickness of the glass composition is 5 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 74.6% or more in the range of 400-700 nm; a solar white balance transmittance of 70.13% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 300-360 nm or less; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 12% or less in the range of 800-2500 nm; a total solar energy transmittance of 34.5% or less in the range of 300-2500 nm, a color purity of 15% or more, and a shielding coefficient of 0.53 or less.

When the thickness of the glass composition is 6 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 69.2% or more in the range of 400-700 nm; a solar white balance transmittance of 63.8% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 2% or less in the range of 300-360 nm; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 14.1% or less in the range of 800-2500 nm; a total solar energy transmittance of 37.3% or less in the range of 300-2500 nm, a color purity of 12% or more, and a shielding coefficient of 0.52 or less.

When the thickness of the glass composition is 12 mm, its dominant wavelength is 470-530 nm, and the glass has a visible light transmittance of 68.9% or more in the range of 400-700 nm; a solar white balance transmittance of 64.5% or more in the range of 400-760 nm; a harmful ultraviolet transmittance of 0.1% or less in the range of 200-300 nm; a transmittance in the erythema effect zone of 2% or less in the range of 300-360 nm; a beauty and health ultraviolet transmittance of 30% or less in the range of 360-400 nm to facilitate sterilization and disinfection; a near-infrared transmittance of 14.5% or less in the range of 800-2500 nm; a total solar energy transmittance of 33.3% or less in the range of 300-2500 nm, a color purity of 12% or more, and a shielding coefficient of 0.52 or less.

In physical linear optics, it's extremely difficult to transmit light in a certain wavelength range while simultaneously absorbing light in other wavelengths. Therefore, photochemical quenching is essential to achieve this goal. This technology leverages the reversible principles of photochemistry and photophysics, employing compounds of quenchers and deactivators to convert harmful UV energy into harmless heat. Similarly, quenchers and deactivators with high molar extinction coefficients combine rare metals and rare earth metals through redox reactions to create a tinted, coordinated portion of the glass. This effectively absorbs both UV and near-infrared light, while leaving a significant channel for visible light to pass through. This overcomes the blackbody absorption phenomenon in physical optics, inhibits auto-oxidation reactions, and creates a stable molecular compound structure. Using the same material, thicker glass reduces visible light transmittance, near-infrared and UV transmittance, total solar energy transmittance, color purity, shielding coefficient, and thermal insulation. The larger the redox coefficient of Fe ₂ O ₃ , the lower the total solar energy transmittance and the better the thermal insulation effect.

Different from traditional insulating glass technology, this technology uses Fe ⁺² iron ions as the skeleton-based center coloring. Divalent iron is blue-green, and trivalent iron is yellow-green. It adopts the multi-component complementarity of the glass body coloring coordination and energy coordination. It utilizes its own bubbling, natural diffusion, and homogenization clarification technology. The temperature difference between the upper and lower parts of the glass liquid during homogenization and clarification is small, which fully meets the requirements of float or grid production processes.

In the present invention, a UV- and infrared-absorbing glass body coloring coordination component is added to the base components of conventional silicate heat-absorbing glass. The proportion of the UV- and infrared-absorbing glass body coloring coordination component is determined based on the thickness of the glass to produce different heat-absorbing glass color tones. The UV- and _infrared -absorbing glass body coloring coordination component is based on _Fe₂O₃ . The redox ratio _{of Fe₂O₃} in the glass composition is controlled to be between 0.4 and 0.8. The redox ratio varies for glass of different thicknesses. Ferrous oxide (FeO), representing Fe₂ ⁺² iron, accounts for 40-80%, preferably 50-80%, of the total iron content ( _Fe₂O₃ ) _. The total iron concentration of _Fe₂O₃ is 0.22-1.35%. _The total iron concentration is the weight percentage of the iron elements Fe₂ ⁺² and Fe₃ ⁺³ in the glass composition. The iron-to-oxygen ratio varies between _{0.83 and 0.95} Fe₂O (by weight). When the thickness of the glass composition is 2.0-5.0 mm, the total iron concentration _{of Fe₂O₃} in the glass base component is 0.4-1.2% (by weight). When the thickness of the glass composition is 6-15 mm, the total iron concentration _{of Fe₂O₃} in the glass base component is 0.22-0.5% (by weight). The redox ratio remains unchanged, and lower concentrations of other additives and coordinators can be selected.

The glass composition of the present invention absorbs ultraviolet and infrared rays. A glass body coloring and coordination component is added to the aforementioned soda-lime silicate glass base component. Depending on the thickness and spectral performance requirements of the resulting glass, the glass can be partially or fully combined and formed using either the float or cell process. The total iron content of the soda-lime silicate glass base composition must not exceed 1.35%, otherwise visible light transmittance will be significantly affected. The glass composition includes the following components: CuO, _WO₃ , _CeO₂ , _Cr₂O₃ , _B₂O₃ , and _SrO , which provide auxiliary _and coordination absorption in the infrared region; ZnO and _MnO₂ , which provide anti-glare coordination absorption in the visible region; and _CeO₂ , _TiO₂ , ZnO, _Sb₂O₃ , _{and Cr₂O₃ ,} which provide coordination absorption in the ultraviolet region.

Furthermore, in the present invention, the glass composition does not contain any one or more of Ni, Cd, As, Pb, Be, SnO, and SnCl. The addition of raw materials containing these elements is prohibited. For example, SnCl is not used as a physical decolorizer and near-infrared auxiliary absorber. It is also best not to use sulfates as glass clarifiers. This is because sulfate clarifiers react with Ni at high temperatures, potentially generating nickel sulfite stones in the glass. Nickel sulfite stones are extremely tiny ellipsoidal spheres that are invisible to conventional detection methods. Nickel sulfite stones can cause spontaneous cracking of the glass during tempering, long-term use, tempering, or sunlight exposure due to thermal expansion and contraction. Therefore, the dosage and particle size must be carefully controlled, and in particular, the correct use of clarifiers must be ensured to prevent the formation of nickel sulfite stones and the potential for spontaneous glass cracking. Therefore, this patented technology eliminates the use of nickel oxide as a near-infrared auxiliary absorber, significantly improving the safety of the finished glass composition.

The present invention also provides a method for manufacturing the ultraviolet and infrared absorbing glass composition, which is formed using a float glass process or a cellulosic process. During the preparation of the glass composition, a reducing agent is added. The reducing agent includes carbon powder and anthracite powder, and the reducing agent is used in an amount of 0.005-0.05%. The reducing agent may further include either or both zinc powder and copper powder.

Preferably, a fining agent is further added during the preparation of the glass composition. The fining agent comprises the following components (by weight): _Na₂SO₄ : _0.05-1 %; _BaSO₄ : 0.01-1.5%; CeO₂: 0.01-1.8%; _CaF : 0.01-1.5%; _{and Sb₂O₃} : 0-0.2%. The fining agent can decompose at high temperatures during the glass melting process to generate gas or reduce the viscosity of the molten glass, thereby eliminating bubbles in the molten glass.

Preferably, a cleaning agent is further added during the preparation of the glass composition, wherein the content of the cleaning agent is (by weight): 0.02-1.5%, so as to prevent fogging, defrost, and clean the glass.

Example 1

Taking the preparation of a 2mm thick light bluish-green glass composition as an example, the following raw materials are added to a zirconia crucible resistant to a temperature of 2000°C: quartz sand: 500g, potassium feldspar: 5g, limestone: 30g, dolomite: 160g, soda ash: 200g, boron trioxide: 4g, fluorite: 6g, sodium sulfate: 6g, and carbon powder: 1g; the coloring and coordination part of the glass body that absorbs ultraviolet and infrared rays is added as needed.

The above raw materials were mixed evenly, 1 gram of reducing agent carbon powder was added to control the redox ratio, the melting temperature was controlled at 1500-1550°C, and the mixture was heated for 30 minutes to 1500°C. After maintaining for 30 minutes, the temperature was raised to 1530°C. Then, the mixture was clarified and homogenized, and the clarification temperature was reduced from 1450°C to 1300°C for 30 minutes. Finally, the molten glass was poured into a molding template for molding. After annealing, a glass composition sample was obtained, which was then ground, polished, and analyzed.

The components of the glass composition obtained by testing are as follows:

Table 2 Glass components in 2mm glass composition

Components (weight %) Example 1 Comparative Example 1 1 62.76 62.36 2 16.93 16.3 3 0.636 0.246 4 0.02 2.0 5 CaO 10.68 9.59

6 MgO 3.507 3.27 7 BaO 3.0 2.59 8 F — 0.2 9 Br 0.4 0.7562 10 0.96 0.984 11 0.059 0.073 12 0.0755 0.0921 13 Cl 0.2 0.01 14 MnO 0.008 0.015 15 CuO 0.008 0.007 16 0.013 0.014 17 SrO 0.0078 0.0091 18 0.8 1.66 19 0.3 0.8 20 — 0.032 twenty one — 0.013 twenty two ZnO — 0.015

Table 3 Redox parameters of 2mm glass composition

Example 1 Comparative Example 1 Total iron concentration (wt%) 0.96% 0.984% 0.278% 0.315% FeO (weight %) 0.682% 0.669% Redox ratio 0.71 0.68

Table 4 Spectral properties of 2mm glass composition

Example 1 Comparative Example 1 (510nm) visible light transmittance LTA (%) 81.2% 78.1% (400-760nm) Sunlight White Balance Transmittance LTS (%) 74.1% 73.2% ≤0.1% ≤0.1% ≤3% ≤3% ≤30% ≤30% (800-2500nm)Near infrared transmittance TSIR(%) 16.5% 15.7%

(300-2500nm) total solar energy transmittance TSET (%) 39.3% 38.6% Color purity Pe(%) 10% 10% Shielding coefficient SC 0.62 0.61

Tables 2 and 3 show how the spectral properties of the glass compositions are modified by varying the amount of the glass bulk coloring coordination component and controlling the redox ratio of _Fe₂O₃ in Example 1 and Comparative Example 1. Table 4 shows the spectral performance parameter values for Example 1 and Comparative Example 1. Referring to Figure 1, which compares the spectral performance parameters of the ₂ mm thick glass compositions of Example 1 and Comparative Example 1, it can be seen that the redox ratio of Comparative Example 1 is slightly higher than that of Example 1. Consequently, a lower total solar energy transmittance (TSET) indicates a better thermal insulation effect.

Example 2

For example, a 4mm thick blue-green glass composition is prepared by adding the following raw materials to a 2000°C zirconia crucible: 530g of quartz sand, 8g of potassium feldspar, 20g of limestone, 155g of dolomite, 190g of soda ash, 3g of boron trioxide, 5g of fluorite, 6g of sodium sulfate, and 1g of carbon powder. The amount of the glass body coloring agent, which absorbs ultraviolet and infrared rays, is adjusted as needed. The method for preparing the glass composition is the same as above and will not be repeated here.

The components of the glass composition are as follows:

Table 5 Glass components in 4mm glass composition

Components (weight %) Example 2 Comparative Example 2 1 67.73 69.3 2 10.06 10.9 3 2.6 1.88 4 3.972 3.539 5 CaO 8.485 8.109 6 MgO 3.819 3.695 7 BaO 1.13 1.3 8 F 0.45 0.3 9 Br — 0.4914 10 0.736 0.8342 11 0.019 0.023 12 0.019 0.0993 13 CL 0.021 0.034 14 MnO 0.009 0.008 15 CuO 0.007 0.006 16 0.1202 0.15

17 SrO 0.0085 0.009 18 0.295 0.4 19 0.25 0.2 20 — 0.003 twenty one — 5ppm

Table 6 Redox parameters of 4mm glass composition

Example 2 Comparative Example 2 Total iron concentration (wt%) 0.736% 0.834% 0.294% 0.35% FeO (weight %) 0.442% 0.484% Redox ratio 0.601 0.58

Table 7 Spectral properties of 4mm glass composition

Example 2 Comparative Example 2 (510nm) visible light transmittance LTA (%) 75.6% 73.2% (400-760nm) Sunlight White Balance Transmittance LTS (%) 71.2% 70.8% ≤0.1% ≤0.1% ≤2% ≤2% ≤30% ≤30% (800-2500nm)Near infrared transmittance TSIR(%) 13% 12.5% (300-2500nm) total solar energy transmittance TSET (%) 35% 34.5% Color purity Pe(%) 12% 12% Shielding coefficient SC 0.54 0.53

Tables 5 and 6 show how Example 2 and Comparative Example 2 vary the spectral properties of the glass compositions by varying the amount of the glass bulk coloring coordination component and controlling the redox ratio _{of Fe₂O₃} . Table 7 shows the spectral performance parameter values for Example 2 and Comparative Example 2. Referring to Figure 3, which compares the spectral performance parameters of the 4 mm thick glass compositions of Example 2 and Comparative Example 2, it can be seen that the redox ratio of Comparative Example 2 is slightly higher than that of Example 2. Consequently, a lower total solar energy transmittance (TSET) indicates a better thermal insulation effect.

Example 3

For example, a 5mm thick blue-green glass composition is prepared by adding the following raw materials to a 2000°C zirconia crucible: 550g of quartz sand, 6g of potassium feldspar, 15g of limestone, 160g of dolomite, 195g of soda ash, 3g of boron trioxide, 5g of fluorite, 6g of sodium sulfate, and 1g of carbon powder. The glass body's coloring and coordination components, which absorb ultraviolet and infrared radiation, are added as needed. The method for preparing the glass composition is the same as above and will not be further described.

The components of the glass composition are as follows:

Table 8 Glass components in 5mm glass composition

Components (weight %) Example 3 1 68.5 2 11.5 3 2.1 4 4.5 5 CaO 9.35 6 MgO 4.5 7 BaO 2.2 8 Br 0.87 9 0.716 10 0.02 11 0.2 12 Cl 0.032 13 MnO 0.009 14 CuO 0.007 15 0.015 16 SrO 0.0085 17 0.49 18 0.15 19 0.001% 20 0.03% twenty one 0.05%

Table 9 Redox parameters of 5mm glass composition

Example 3 Total iron concentration (wt%) 0.716% 0.301% FeO (weight %) 0.415% Redox ratio 0.58

Table 10 Spectral properties of 5mm glass composition

Example 3 (510nm) visible light transmittance LTA (%) 74.6% (400-760nm) Sunlight White Balance Transmittance LTS (%) 70.13% ≤0.1% ≤2% ≤30% (800-2500nm)Near infrared transmittance TSIR(%) 12% (300-2500nm) total solar energy transmittance TSET (%) 34.5% Color purity Pe(%) 15% Shielding coefficient SC 0.53

4 , the above spectral performance parameters of the 5 mm glass composition can be seen.

Example 4

For example, a 6mm thick blue-green glass composition is prepared by adding the following raw materials to a 2000°C zirconia crucible: 555g of quartz sand, 5g of potassium feldspar, 20g of limestone, 160g of dolomite, 190g of soda ash, 5g of boron trioxide, 6g of fluorite, 6g of sodium sulfate, 1g of carbon powder, and an amount of the glass body coloring agent (to absorb ultraviolet and infrared rays) as needed. The method for preparing the glass composition is the same as above and will not be repeated here.

The components of the glass composition obtained by testing are as follows:

Table 11 Glass components in 6mm glass composition

Components (weight %) Example 4 Comparative Example 4 1 67.01 65.83 2 12.4 10.01 3 1.63 2.1 4 3.0 3.998 5 CaO 8.687 8.364 6 MgO 3.777 3.962 7 BaO 0.181 2.26 8 F 1.2 0.8 9 Br 0.6035 0.572 10 0.43 0.466 11 0.0901 0.0913 12 0.265 0.021

13 Cl 0.0959 0.027 14 MnO 0.008 0.008 15 CuO 0.007 0.007 16 0.0225 0.1865 17 SrO 0.007 0.01 18 0.261 0.286 19 0.1 0.15 20 0.01 0.015 twenty one ZnO — 0.005 twenty two — 0.008

Table 12 Redox parameters of 6mm glass composition

Example 4 Comparative Example 4 Total iron concentration (wt%) 0.43% 0.466% 0.189% 0.196% FeO (weight %) 0.241% 0.27% Redox ratio 0.56 0.58

Table 13 Spectral properties of 6mm glass composition

Example 4 Comparative Example 4 (510nm) visible light transmittance LTA (%) 71.2% 69.5% (400-760nm) Sunlight White Balance Transmittance LTS (%) 64.5% 63.8% ≤0.1% ≤0.1% ≤2% ≤2% ≤30% ≤30% (800-2500nm)Near infrared transmittance TSIR(%) 14.5% 14.1% (300-2500nm) total solar energy transmittance TSET (%) 37.3% 37.1% Color purity Pe(%) 12% 12% Shielding coefficient SC 0.525 0.52

Tables 11 and 12 compare Example 4 and Comparative Example 4, showing how the spectral properties of the glass compositions are modified by varying the amount of the glass bulk coloring coordination component and controlling the redox ratio of _Fe₂O₃ . Table 13 shows the spectral performance parameter values for Example 4 and Comparative Example 4. Referring to Figure 5, which compares the spectral performance parameters of the ₆ mm thick glass compositions of Example 4 and Comparative Example 4, it can be seen that the redox ratio of Comparative Example 4 is slightly higher than that of Example 4. Consequently, a lower total solar energy transmittance (TSET) indicates a better thermal insulation effect.

Example 5

For example, a 12mm thick blue-green glass composition is prepared by adding the following raw materials to a 2000°C zirconia crucible: 590g of quartz sand, 5g of potassium feldspar, 15g of limestone, 160g of dolomite, 190g of soda ash, 40g of borax, 6g of fluorite, 6g of sodium sulfate, and 1g of carbon powder. The amount of the glass body coloring agent, which absorbs ultraviolet and infrared rays, is adjusted as needed. The method for preparing the glass composition is the same as above and will not be repeated here.

The components of the glass composition obtained by testing are as follows:

Table 14 Glass components in 12mm glass composition

Components (weight %) Example 5 Comparative Example 5 1 70.29 70.13 2 14.01 13.05 3 0.419 0.45 4 0.291 0.6 5 CaO 9.28 10.2 6 MgO 2.967 3.9 7 BaO 0.25 0.5 8 F 0.5 0.45 9 Br 0.3 0.35 10 0.38 0.368 11 0.137 0.15 12 0.295 0.31 13 Cl 0.036 0.04 14 MnO 0.011 0.013 15 CuO 0.01 0.012 16 0.0016 0.002 17 SrO 0.1189 0.23 18 0.976 0.974 19 0.513 0.45 20 0.0534 0.05 twenty one 0.036 0.03

Table 15 Redox parameters of 12 mm glass composition

Example 5 Comparative Example 5

Total iron concentration (wt%) 0.38% 0.368% 0.084% 0.077% FeO (weight %) 0.297% 0.291% Redox ratio 0.78 0.79

Table 16 Spectral properties of 12mm glass composition

Example 5 Comparative Example 5 (510nm) visible light transmittance LTA (%) 68.9% 66.2% (400-760nm) Sunlight White Balance Transmittance LTS (%) 63.1% 62.5% ≤0.1% ≤0.05% ≤2% ≤2% ≤30% ≤30% (800-2500nm)Near infrared transmittance TSIR(%) 12.5% 12% (300-2500nm) total solar energy transmittance TSET (%) 33.3% 33.2% Color purity Pe(%) 15% 15% Shielding coefficient SC 0.52 0.52

Tables 14 and 15 compare Example 5 and Comparative Example 5, showing how the spectral properties of the glass compositions are modified by varying the amount of the glass bulk coloring coordination component and controlling the redox ratio of _Fe₂O₃ . Table 16 shows the spectral performance parameter values for Example 5 and Comparative Example 5. Referring to Figure 6, which compares the spectral performance parameters of the ₁₂ mm thick glass compositions of Example 5 and Comparative Example 5, it can be seen that the redox ratio of Comparative Example 5 is slightly higher than that of Example 5. Consequently, a lower total solar energy transmittance (TSET) indicates a better thermal insulation effect.

The composition of the glass composition was detected by a BruKe-S4 X-ray fluorescence spectrometer from Germany, and the spectral performance parameters were detected by a Lambda-950 infrared spectrometer from PE Company of the United States.

The glass composition of the present invention can be formed by a float glass process or a cell glass process, and can be used alone or laminated with ordinary float/cell glass to form safety glass. The glass composition can be used for door and window glass, curtain wall glass, ceiling lighting, heat-insulating and rain-proof glass, architectural heat-insulating glass, and glass panels of various buildings, or laminated with ordinary bulletproof glass panels to form bulletproof and heat-insulating glass. The glass composition has a wide range of applications, but is not limited to these.

The ultraviolet and infrared absorbing glass composition of the present invention can also be used to make vehicle window glass. The glass is made from at least one tempered piece of the ultraviolet and infrared absorbing glass composition, or from at least one piece of the ultraviolet and infrared absorbing glass composition laminated with at least one piece of conventional float or grid glass. The vehicle window glass can be used as a front windshield. Besides meeting visible light transmittance ≥ 70%, it must also meet the following requirements: red light (620nm wavelength spectral transmittance ≥ 50%); yellow light (588nm wavelength spectral transmittance ≥ 60%); and green light (510nm wavelength spectral transmittance ≥ 75%). This ensures clear discrimination of red, yellow, and green traffic lights at intersections. A suitable amount (0-0.008%) of a harmonizer is added to reduce glare at 555nm, the wavelength to which the human eye is most sensitive. This allows the cone cells in the human retina to clearly distinguish the colors of red, yellow, and green traffic lights, thereby reducing visual fatigue and preventing traffic accidents. The glass composition can have a thickness between 1.5 mm and 15 mm. The glass composition for absorbing ultraviolet and infrared rays of the present invention can also be used to prepare bulletproof and heat-insulating glass, which is made by laminating at least one glass composition for absorbing ultraviolet and infrared rays with an ordinary bulletproof glass plate.

Taking automotive window glass as an example, it is a near-white, slightly bluish-green, sodium-calcium silicate-based, super-heat-absorbing glass that resists rain, dew, fogging, and ice and snow adhesion. It transmits ≥65% of blue light and ≥75% of green light, stimulating retinal ganglion cells and achieving a refreshing effect. For 4mm thick glass, the visible light transmittance (LTA) is 70-75% in the 400-700nm range, and the white-balanced solar transmittance (LTS) is 62-75% in the 400-760nm range. Its dominant wavelength (DW) (nm) is between 470-530nm. Its absorption rate in the harmful ultraviolet region (TSUVc) between 200-300nm is over 99.9%, and in the erythema effect region ( _TSUVB ) between 300-360nm is over 98%. The transmittance of the beauty and health ultraviolet ( _TSUVA ) between 360-400nm is controlled to ≤30%, facilitating sterilization. The absorptivity in the near-infrared region (TSIR) between 800-2500nm exceeds 90%, and the total solar thermal energy transmittance (TSET) between 300-2500nm is 30-40%. The color purity Pe (%) ranges from 8-15%. The shielding coefficient Sc ranges from 0.52-0.62. By varying the amount of the color _- coordinating component added to the glass and the redox ratio of _Fe₂O₃ , the following spectral properties of different glasses are achieved:

Table 17 Relationship between shading coefficient (Sc), total solar energy transmittance (TSET) and visible light transmittance (LTA)

Sc 0.53 0.54 0.58 0.6 0.62 TSET 34.5% 35% 35.3% 37.4% 39.3% LTA ≥73.2% ≥75.6% ≥76.5% ≥77.3% ≥78.1%

As shown in Table 17, the greater the shielding coefficient of the glass composition, the greater the total solar energy transmittance and the higher the visible light transmittance.

Figure 7 shows a comparison of the spectral properties of the glass composition of the present invention and other glasses. Region A represents the ultraviolet region of 200-400 nm, region B represents the visible region of 400-700 nm, region C represents the visible-to-near-infrared transition region of 700-800 nm, region D represents the red-hot near-infrared region of 800-1200 nm, and region E represents the near-infrared region of 1200-2000 nm. Most of the heat from sunlight is concentrated in region D. Curve 71 represents ordinary glass, curve 72 represents heat-absorbing glass, curve 73 represents reflective-coated glass, and curve 74 represents the glass of the present invention. Curve 75 represents online Low-E glass, and curve 76 represents offline magnetron sputtering Low-E glass. As shown in FIG7 , compared with various other types of glass, the glass of the present invention has the lowest transmittance of total sunlight energy in the red-hot near-infrared region, and exhibits significantly superior thermal insulation effect. In the visible light region, the transmittance of visible light is lower than that of ordinary glass, but better than that of various insulating glasses. It can completely replace various high-cost Low-E glasses, representing a significant technological advancement in the field of insulating glass.

As shown in Figure 8, in the infrared spectrum, Curve A is the infrared spectrum curve of the 4mm glass of the present invention, and Curve B is the infrared spectrum curve of the existing hollow Low-E glass. By comparison, the spectral performance of the glass of the present invention is significantly better than that of the hollow Low-E glass.

The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (14)

1. A glass composition that absorbs ultraviolet and infrared radiation, comprising the following glass base components in weight percentages: SiO2: 60-75%; Na2O: 8-20%; CaO: 3-12%; Al2O3: 0.1-5%; MgO: 2-5%; K2O: 0.02-7%; BaO: 0.1-5%; SO3: 0.01-0.4%; And the following weight percentage of the glass body coloring coordination portion absorbs ultraviolet and infrared radiation: Fe2O3: 0.22-1.35%; ZrO2+HfO2: 0.001-0.8%; Cl: 0-0.5%; B2O3: greater than 0 and less than or equal to 2%; TiO2: 0.01-0.8%; CuO: 0.001-0.06%; Br: 0-2.0%; MnO: 0-0.02%; F: 0-2.0%; SrO: 0.001-0.5%; CeO2: 0.005-2.2%; The coloring coordination portion of the glass body that absorbs ultraviolet and infrared rays also includes the following auxiliary components by weight percentage: the auxiliary components contain at least WO3 and/or Sb2O3; selectively contain at least one of P2O5, ZnO, and Cr2O3; The WO3 content is no greater than 0.01%; Sb2O3 content is no greater than 0.1%. P2O5: not greater than 0.3%; ZnO: not greater than 0.03%; Cr2O3: not greater than 0.015%. 2. The glass composition for absorbing ultraviolet and infrared rays as described in claim 1, characterized in that: the thickness of the glass composition is 2.0-5.0 mm, and the color-coordinated portion of the glass body for absorbing ultraviolet and infrared rays comprises the following components by weight percentage: Fe2O3: 0.5-1.2%; ZrO2+HfO2: 0.002-0.5%; Cl: 0-0.3%; B2O3: greater than 0 and less than or equal to 1%; TiO2: 0.01-0.5%; CuO: 0.002-0.01%; Br: 0-1.5%; MnO: greater than 0 and less than or equal to 0.015%; F: 0-1.8%; SrO: 0.002-0.2%; CeO2: 0.01-1.8%. 3. The glass composition for absorbing ultraviolet and infrared rays as described in claim 2, characterized in that: when the thickness of the glass composition is 2.0 mm, the weight percentage of auxiliary components in the color-coordinating portion of the glass body for absorbing ultraviolet and infrared rays is: WO3: 0.003-0.01%; P2O5: 0.01-0.1%; ZnO: 0.01-0.03%; Cr2O3: 0.005-0.015%; Sb2O3: 0.02-0.1%; When the thickness of the glass composition is 4.0 mm, the weight percentage of auxiliary components in the color-coordinating portion of the glass body that absorbs ultraviolet and infrared rays is: WO3: 0.005-0.01%; P2O5: 0.01-0.05%; ZnO: 0.005-0.03%; Cr2O3: 0-0.015%; Sb2O3: 0.01-0.05%; When the thickness of the glass composition is 5.0 mm, the weight percentage of auxiliary components in the color coordination portion of the glass body that absorbs ultraviolet and infrared rays is: WO3: 0-0.01%; P2O5: 0.01-0.05%; Sb2O3: 0.01-0.05%. 4. The glass composition for absorbing ultraviolet and infrared rays as described in claim 1, characterized in that: the redox ratio of Fe2O3 in the glass composition is 0.4-0.8. 5. The glass composition for absorbing ultraviolet and infrared rays as described in claim 3, characterized in that: when the thickness of the glass composition is 2 mm, its dominant wavelength is 470-530 nm; the visible light transmittance of the glass in the 400-700 nm range is ≥78.1%; the solar white balance transmittance in the 400-760 nm range is ≥73.2%; the harmful ultraviolet transmittance in the 200-300 nm range is ≤0.2%; the transmittance in the erythema effect region in the 300-360 nm range is ≤3%; the transmittance of beauty and health ultraviolet rays in the 360-400 nm range is ≤30% to facilitate sterilization and disinfection; the near-infrared transmittance in the 800-2500 nm range is ≤16.5%; the total solar energy transmittance in the 300-2500 nm range is ≤39.3%; the color purity is ≥10%; and the shading coefficient is ≤0.62. When the thickness of the glass composition is 4mm, its dominant wavelength is 470-530nm. The glass has a visible light transmittance of ≥73.2% in the 400-700nm range; a solar white balance transmittance of ≥70.8% in the 400-760nm range; a harmful ultraviolet transmittance of ≤0.1% in the 200-300nm range; a transmittance of ≤3% in the erythema effect region in the 300-360nm range; a transmittance of ≤30% in the beauty and health ultraviolet rays in the 360-400nm range to facilitate sterilization and disinfection; a near-infrared transmittance of ≤13% in the 800-2500nm range; a total solar energy transmittance of ≤35% in the 300-2500nm range; a color purity of ≥12%; and a shading coefficient of ≤0.54. When the thickness of the glass composition is 5mm, its dominant wavelength is 470-530nm. The glass has a visible light transmittance of ≥74.6% in the 400-700nm range; a solar white balance transmittance of ≥70.13% in the 400-760nm range; a harmful ultraviolet transmittance of ≤0.1% in the 200-300nm range; a transmittance of ≤3% in the erythema effect region in the 300-360nm range; a transmittance of ≤30% for beauty and health ultraviolet rays in the 360-400nm range to facilitate sterilization and disinfection; a near-infrared transmittance of ≤12% in the 800-2500nm range; a total solar energy transmittance of ≤34.5% in the 300-2500nm range; a color purity of ≥15%; and a shading coefficient of ≤0.53. 6. The glass composition for absorbing ultraviolet and infrared rays as described in claim 5, characterized in that: the transmittance of near-infrared rays in the 800-1200nm range is ≤4%, and the transmittance of near-infrared rays in the 800-1500nm range is ≤10%. 7. The glass composition for absorbing ultraviolet and infrared rays as described in claim 1, characterized in that: when the thickness of the glass composition is 6-15 mm, the Fe2O3 content in the color-coordinated portion of the glass body for absorbing ultraviolet and infrared rays is 0.22-0.5%. 8. The glass composition for absorbing ultraviolet and infrared rays as described in claim 7, characterized in that: when the thickness of the glass composition is 6 mm, its dominant wavelength is 470-530 nm; the visible light transmittance of the glass in the 400-700 nm range is ≥69.2%; the solar white balance transmittance in the 400-760 nm range is ≥63.8%; the harmful ultraviolet transmittance in the 200-300 nm range is ≤0.1%; the transmittance in the erythema effect region in the 300-360 nm range is ≤2%; the transmittance of beauty and health ultraviolet rays in the 360-400 nm range is ≤30% to facilitate sterilization and disinfection; the near-infrared transmittance in the 800-2500 nm range is ≤14.1%; the total solar energy transmittance in the 300-2500 nm range is ≤37.3%; the color purity is ≥12%; and the shading coefficient is ≤0.52. 9. The glass composition for absorbing ultraviolet and infrared rays as described in claim 8, characterized in that: when the thickness of the glass composition is 12 mm, its dominant wavelength is 470-530 nm; the visible light transmittance of the glass in the 400-700 nm range is ≥68.9%; the solar white balance transmittance in the 400-760 nm range is ≥64.5%; the harmful ultraviolet transmittance in the 200-300 nm range is ≤0.1%; the transmittance in the erythema effect region in the 300-360 nm range is ≤2%; the transmittance of beauty and health ultraviolet rays in the 360-400 nm range is ≤30% to facilitate sterilization and disinfection; the near-infrared transmittance in the 800-2500 nm range is ≤14.5%; the total solar energy transmittance in the 300-2500 nm range is ≤33.3%; the color purity is ≥12%; and the shading coefficient is ≤0.52. 10. The glass composition for absorbing ultraviolet and infrared radiation as described in any one of claims 1-9, characterized in that: the glass composition does not contain any one or more of Ni, Cd, As, Pb, and Be. 11. The glass composition for absorbing ultraviolet and infrared rays as claimed in claim 1, characterized in that: the glass composition is formed by float glass process or lattice process. 12. An application of a glass composition for absorbing ultraviolet and infrared rays as described in claim 1, characterized in that it is used to prepare window and door glass, curtain wall glass, skylight glass, heat-insulating and rainproof glass, vehicle window glass, or bulletproof glass for buildings. 13. The application of the glass composition for absorbing ultraviolet and infrared rays as described in claim 12, characterized in that: the window glass is made of at least one piece of the glass composition for absorbing ultraviolet and infrared rays as described in claim 1 through tempering, or is made of at least one piece of the glass composition for absorbing ultraviolet and infrared rays as described in claim 1 and at least one piece of ordinary float or laminated glass. 14. The application of the glass composition for absorbing ultraviolet and infrared rays as described in claim 13, characterized in that: the windshield glass is a windshield with a visible light transmittance ≥70%, a wavelength transmittance of 620nm red light ≥50%, a wavelength transmittance of 588nm yellow light ≥60%, and a wavelength transmittance of 510nm green light ≥75%, so as to clearly distinguish the red, yellow, and green traffic lights at intersections.