CN102875022A - Green float glass with low ultraviolet transmittance - Google Patents

Green float glass with low ultraviolet transmittance Download PDF

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Publication number
CN102875022A
CN102875022A CN2012103849726A CN201210384972A CN102875022A CN 102875022 A CN102875022 A CN 102875022A CN 2012103849726 A CN2012103849726 A CN 2012103849726A CN 201210384972 A CN201210384972 A CN 201210384972A CN 102875022 A CN102875022 A CN 102875022A
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China
Prior art keywords
glass
float glass
weight percentage
green
low ultraviolet
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CN2012103849726A
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Chinese (zh)
Inventor
谢俊
吕鑫
胡开文
韩建军
赵修建
徐麟
张金奎
吕在国
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HUBEI SANXIA NEW BUILDING MATERIALS CO Ltd
Wuhan University of Technology WUT
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HUBEI SANXIA NEW BUILDING MATERIALS CO Ltd
Wuhan University of Technology WUT
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Priority to CN2012103849726A priority Critical patent/CN102875022A/en
Publication of CN102875022A publication Critical patent/CN102875022A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the field of float glass and specifically relates to a green float glass with low ultraviolet transmittance. The green float glass with the low ultraviolet transmittance comprises basic glass ingredients and coloring components, wherein the basic glass ingredients comprise, by weight, 64%-72% of SiO2, 0.1%-7% of Al2O3, 5.5% -10% of CaO, 4%-6% of MgO, 9%-20% of Na2O, 0.1%-1% of K2O and 0.1%-1% of SO3, and the coloring components comprise, by weight, 0.1%-0.7% of Fe2O3 and 0.05%-0.3% of TiO2. The green float glass with the low ultraviolet transmittance has the advantages that the visible light transmittance is 75% or above 75%, the total solar energy transmittance is below 46%, and when the thickness of the glass is in a range from 2mm to 5mm, the ultraviolet transmittance is below 15% based on provisions of international standard 090 (IS090).

Description

A kind of green float glass of low ultraviolet permeability
Technical field
The invention belongs to the float glass field, be specifically related to a kind of green float glass of low ultraviolet permeability.
Background technology
Vehicle glass is the important integral part of automobile, and it has the functions such as protection occupant safety and waterproof and dustproof, heat-resisting and sound insulation.
A kind of green hue glass of patent (201010274431.9) report is arranged at present, the ultraviolet (uv) transmission ratio is reduced to below 38%, total sun power transmittance is reduced to below 46%, the visible transmission ratio remains on more than 70% simultaneously, the windshield glass, front window and the rear window that are used for automobile are to guarantee by sight line outside in the car.Take the A green glass of 4mm as example, visible light transmissivity is 73%, and total solar energy transmission is higher reaches 47%.At present the strong Ultraviolet radiation absorbing float glass of domestic production technology can reach international general provision, but will produce transmission of visible light greater than 75% heat absorption anti-ultraviolet radiation float glass, also has larger difficulty.
Known to reducing the ferric oxide (Fe in the ferriferous oxide of introducing in the glass 2O 3) absolute content, can reduce the transmittance of total sun power.Generally the ferrous ion in the glass only accounts for and introduces 20% ~ 25% of total iron in the glass, Fe in the glass when producing green glass 2+Content control is improper, then can reduce the transmission of visible light of glass, and make glass be painted to yellow-green colour.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the problems of the prior art, and a kind of green float glass of low ultraviolet permeability is provided, and transmission of visible light is high, and total solar ultraviolet transmissivity is low, and the products production cost is low.
The present invention is in order to solve the problems of the technologies described above, and the technical scheme that adopts is:
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 264 ~ 72wt%, Al 2O 30.1 ~ 7 wt%, CaO 5.5 ~ 10wt%, MgO 4 ~ 6wt%, Na 2O 9 ~ 20wt%, K 2O 0.1 ~ 1wt% and SO 30.1 ~ 1wt%; Described colouring component is by weight percentage: Fe 2O 30.1 ~ 0.7 wt%, TiO 20.05 ~ 0.3 wt%(annotates: parent glass component and colouring component by weight percentage, sum of the two is 100%).
Press such scheme, described parent glass components based on weight percentage is: SiO 265 ~ 71wt%, Al 2O 33 ~ 7wt%, CaO 7 ~ 9wt%, MgO 4 ~ 6wt%, Na 2O 10 ~ 15wt%, K 2O 0.5 ~ 1wt%, SO 30.5 ~ 1wt%.
Press such scheme, described colouring component is for being by weight percentage: Fe 2O 30.3 ~ 0.5wt%, TiO 20.2 ~ 0.3wt%.
Press such scheme, the green float glass of described a kind of low ultraviolet permeability comprises glass basic ingredient and colouring component, and described parent glass components based on weight percentage is: SiO 265 ~ 71wt%, Al 2O 33 ~ 7wt%, CaO 7 ~ 9wt%, MgO 4 ~ 6wt%, Na 2O 10 ~ 15wt%, K 2O 0.5 ~ 1wt%, SO 30.5 ~ 1wt%; Described colouring component is for being by weight percentage: Fe 2O 30.3 ~ 0.5wt%, TiO 20.2 ~ 0.3wt%.
The present invention adjusts general ultraviolet beta radiation heat absorbing glass component, namely to Fe 2O 3, TiO 2, K 2O and Al 2O 3Content is adjusted, and obtains ultraviolet transmission than low, and visible transmission is than high green float glass.
In the parent glass composition:
SiO 2Being the main composition that consists of glass, also is the basis that consists of glass.The viscosity of glass metal, thermostability and chemical stability are all with SiO 2Content increases and improves; Density and thermal expansivity are with SiO 2The increase of content and reducing.SiO 2Too high levels makes glass melting, clarification and homogenization difficulty, and energy consumption increases.SiO 2Preferentially content is 64 ~ 72wt%.
Al 2O 3Effect be the weather resistance of improving glass, and can improve chemical stability and the thermostability of glass.Al 2O 3Too high levels can make the temperature of fusion of glass slow down and settling time prolongs, and is unfavorable for homogenizing, and glass to be shakeout polishing in molten tin bath unfavorable.Al 2O 3Preferentially content is 0.1 ~ 7 wt %.
K 2O plays the suspension effect in glass structure, viscosity that can decrease glass, thus reduce the temperature of fusion of glass, be the solubility promoter of glass melting.K 2O and Na 2O has " two alkali " effect, improves chemical durability of glass; Introduce K 2O can also reduce glass surface tension, is conducive to glass metal and shakeouts in molten tin bath and polish, and obtains high-quality glass surface and improves the gloss of glass.K 2O preferentially content is: 0.1 ~ 1 wt %.
Fe 2O 3And TiO 2As the tinting material in the glass ingredient, ferric oxide is with Fe 2O 3There is Fe with the FeO form 2O 3And TiO 2Effect improve together ultraviolet absorption ability.Fe 2O 3Composition preferentially content is 0.1 ~ 0.7 wt %.
TiO 2Be auxiliary uv-absorbing agent, play pigmentation.Introduce TiO 2Can also improve specific refractory power, the density of glass, reduce thermal expansivity.This component preferentially content is: TiO 20.05 ~ 0.3 wt %
Compared with prior art, the invention has the beneficial effects as follows: by adjusting Fe in the glass basic components 2O 3And TiO 2, because Fe 2O 3And TiO 2And their the ultraviolet radiation absorption function that reacts to each other and produce, make the green float glass transmission of visible light of different thickness be higher than 75%, and can not produce aberration; The glass transmission of visible light of 2 ~ 5mm is more than or equal to 75%, and total solar energy transmission is less than or equal to 45%, and total solar ultraviolet transmissivity is less than or equal to 15%; Fe 2O 3Uv-absorbing or TiO 2And the interaction between the FeO can spread all over visible region, and therefore, glass has the green of predominant wavelength in 500 ~ 550nm scope, and the products production cost is suitable with existing glass cost.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with example, but the present invention not only is confined to the following examples.
Embodiment 1
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 270.8wt%, CaO 8wt%, MgO 4wt%, Al 2O 33wt%, Na 2O 13wt%, K 2O 0.1wt% and SO 30.5wt%; Described colouring component is by weight percentage: with Fe 2O 30.3wt%, TiO 20.3wt% prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
The preparation method of the green float glass of above-mentioned a kind of low ultraviolet permeability, the implementation step is as follows: with quartz sand, Wingdale, rhombspar, commercial alumina, soda ash, feldspar is introduced the basic ingredient of the superpower float glass of ultrawhite, adds iron powder and TiO 2, weighing 200g mixes, put into corundum crucible, insert fusing in the silicon molybdenum stove, the glass metal that melts is poured on the preheated graphite cake, the resistance furnace of putting into subsequently 500 ℃ is annealed, is cooled off, and preparation thickness is the glass sample of 2mm, 4mm and 5mm.Glass sample is carried out performance test, see Table 1 and 2.
Embodiment 2
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 268.2wt%, CaO 8wt%, MgO 4wt%, Al 2O 35wt%, Na 2O 13wt%, K 2O 0.5wt% and SO 30.5wt%; Described colouring component is by weight percentage: Fe 2O 30.5wt %, TiO 20.3 wt % prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
Embodiment 3
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 2For 65wt%, CaO are that 8wt%, MgO are 4wt%, Al 2O 3Be 7wt%, Na 2O is 13wt %, K 2O is 1 wt % and SO 3Be 1wt%; Described colouring component is by weight percentage: Fe 2O 30.7wt %, TiO 20.3 wt % prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
Embodiment 4
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 266.1wt%, CaO 5.5wt%, MgO 6wt%, Al 2O 30.1wt%, Na 2O 20wt%, K 2O 1wt% and SO 31wt%; Described colouring component is by weight percentage: with Fe 2O 30.1wt%, TiO 20.2wt% prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
Embodiment 5
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 268.15wt%, CaO 10wt%, MgO 4wt%, Al 2O 37wt%, Na 2O 9wt%, K 2O 1wt% and SO 30.1wt%; Described colouring component is by weight percentage: Fe 2O 30.7wt%, TiO 20.05wt% prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
Embodiment 6
A kind of green float glass of low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 264wt%, CaO 8wt%, MgO 4wt%, Al 2O 37wt%, Na 2O 14wt%, K 2O 1wt% and SO 31wt%; Described colouring component is by weight percentage: Fe 2O 30.7wt%, TiO 20.3wt% prepares respectively the sheet glass that thickness is 2mm, 4mm and 5mm.
With the sheet glass that above-described embodiment obtains, measure respectively transmission of visible light (Tv), total solar energy transmission (Ts), solar ultraviolet transmissivity (Tuv) result as shown in Table 1 and Table 2.
Figure 598889DEST_PATH_IMAGE002
Glass of the present invention, in thickness 2 ~ 5mm scope, transmission of visible light is more than or equal to 75%, total solar energy transmission is less than or equal to 45%, total solar ultraviolet transmissivity is less than or equal to 15%, glass has the green of predominant wavelength in 500 ~ 550nm scope, and the products production cost is suitable with existing glass cost.Transmitance of the present invention is measured in 380 ~ 780nm wavelength region by CIE standard light source.Ultraviolet permeability is based in ISO9050-90 (E) standard 4 and measures in 280 ~ 380nm wavelength region.Total sunlight transmitance is measured in visible wavelength range according to ISO9050-90 (E) standard meter 3.

Claims (4)

1. the green float glass of a low ultraviolet permeability comprises parent glass component and colouring component, and described parent glass components based on weight percentage is: SiO 264 ~ 72wt%, Al 2O 30.1 ~ 7 wt%, CaO 5.5 ~ 10wt%, MgO 4 ~ 6wt%, Na 2O 9 ~ 20wt%, K 2O 0.1 ~ 1wt% and SO 30.1 ~ 1wt%; Described colouring component is by weight percentage: Fe 2O 30.1 ~ 0.7 wt%, TiO 20.05 ~ 0.3 wt%.
2. the green float glass of a kind of low ultraviolet permeability according to claim 1 is characterized in that described parent glass components based on weight percentage is: SiO 265 ~ 71wt%, Al 2O 33 ~ 7wt%, CaO 7 ~ 9wt%, MgO 4 ~ 6wt%, Na 2O 10 ~ 15wt%, K 2O 0.5 ~ 1wt%, SO 30.5 ~ 1wt%.
3. the green float glass of a kind of low ultraviolet permeability according to claim 1 is characterized in that described colouring component is for being by weight percentage: Fe 2O 30.3 ~ 0.5wt%, TiO 20.2 ~ 0.3wt%.
4. the green float glass of a kind of low ultraviolet permeability according to claim 1 comprises glass basic ingredient and colouring component, it is characterized in that described parent glass components based on weight percentage is: SiO 265 ~ 71wt%, Al 2O 33 ~ 7wt%, CaO 7 ~ 9wt%, MgO 4 ~ 6wt%, Na 2O 10 ~ 15wt%, K 2O 0.5 ~ 1wt%, SO 30.5 ~ 1wt%; Described colouring component is for being by weight percentage: Fe 2O 30.3 ~ 0.5wt%, TiO 20.2 ~ 0.3wt%.
CN2012103849726A 2012-10-12 2012-10-12 Green float glass with low ultraviolet transmittance Pending CN102875022A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671660A (en) * 2014-12-11 2015-06-03 漳州旗滨玻璃有限公司 Super-white and super-thick float glass and preparation method thereof
JP2018510835A (en) * 2015-03-26 2018-04-19 ピルキントン グループ リミテッド New glass

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701425A (en) * 1986-05-19 1987-10-20 Libbey-Owens-Ford Co. Infrared and ultraviolet absorbing glass compositions
US5726109A (en) * 1994-10-05 1998-03-10 Asahi Glass Company Ltd. Deep gray colored glass
CN1336904A (en) * 2000-01-07 2002-02-20 日本板硝子株式会社 Infrared and ultraviolet radiation absorbing glass
US6350712B1 (en) * 2000-01-26 2002-02-26 Vitro Corporativo, S.A. De C.V. Solar control glass composition
CN1792913A (en) * 2005-11-25 2006-06-28 中国洛阳浮法玻璃集团有限责任公司 Colouring agent for green float glass of vehicle
CN102381839A (en) * 2010-09-06 2012-03-21 信义超薄玻璃(东莞)有限公司 Green float glass and manufacturing method thereof
CN102515519A (en) * 2011-12-16 2012-06-27 福耀玻璃工业集团股份有限公司 Float glass capable of isolating infrared and ultraviolet as well as absorbing heat

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701425A (en) * 1986-05-19 1987-10-20 Libbey-Owens-Ford Co. Infrared and ultraviolet absorbing glass compositions
US5726109A (en) * 1994-10-05 1998-03-10 Asahi Glass Company Ltd. Deep gray colored glass
CN1336904A (en) * 2000-01-07 2002-02-20 日本板硝子株式会社 Infrared and ultraviolet radiation absorbing glass
US6350712B1 (en) * 2000-01-26 2002-02-26 Vitro Corporativo, S.A. De C.V. Solar control glass composition
CN1792913A (en) * 2005-11-25 2006-06-28 中国洛阳浮法玻璃集团有限责任公司 Colouring agent for green float glass of vehicle
CN102381839A (en) * 2010-09-06 2012-03-21 信义超薄玻璃(东莞)有限公司 Green float glass and manufacturing method thereof
CN102515519A (en) * 2011-12-16 2012-06-27 福耀玻璃工业集团股份有限公司 Float glass capable of isolating infrared and ultraviolet as well as absorbing heat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671660A (en) * 2014-12-11 2015-06-03 漳州旗滨玻璃有限公司 Super-white and super-thick float glass and preparation method thereof
CN104671660B (en) * 2014-12-11 2017-09-26 漳州旗滨玻璃有限公司 A kind of ultrawhite super thick float glass and its preparation method
JP2018510835A (en) * 2015-03-26 2018-04-19 ピルキントン グループ リミテッド New glass

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Application publication date: 20130116