CN101624262B - Colorless and transparent functional glass with strong ultraviolet absorption capability - Google Patents
Colorless and transparent functional glass with strong ultraviolet absorption capability Download PDFInfo
- Publication number
- CN101624262B CN101624262B CN2009101644700A CN200910164470A CN101624262B CN 101624262 B CN101624262 B CN 101624262B CN 2009101644700 A CN2009101644700 A CN 2009101644700A CN 200910164470 A CN200910164470 A CN 200910164470A CN 101624262 B CN101624262 B CN 101624262B
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- glass
- oxide
- float glass
- absorption capability
- ultraviolet absorption
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Abstract
The invention provides colorless and transparent functional glass with strong ultraviolet absorption capability. On a basis of common float glass, 0.1-3 cerium carbonate (Ce2(CO3)3) and 0.05-0.8 praseodymium carbonate (Pr2(CO3)3) in percentage by weight are added as an ultraviolet absorbent and an ultraviolet decolorant of the glass so that the melt glass has a thickness of 4mm, a visible light transmission rate larger than 80 percent, an ultraviolet transmission rate smaller than 20 percent and a color difference smaller than 0.4; and a preferable prescription has a visible light transmission rate larger than 88 percent, an ultraviolet transmission rate smaller than 14 percent and a color difference smaller than 0.1. The glass can be widely applied to automobile glass, architectural glass, art glass, and the like.
Description
Technical field:
The present invention relates to a kind of water white functional glass with strong ultraviolet absorption capability, this kind glass is widely used in vehicle glass, glass of building and art glass field.
Background technology:
In recent years along with China's rapid economic development, the obnoxious flavour of heavy industry discharging makes depletion of the ozone layer serious day by day, and automobile and Highrise buildings increase gradually, and ultraviolet radiation intensity increases, and the luxurious decoration in automobile and the buildings is on the rise by the destruction of uviolizing.
Rare earth is one of grand strategy resource of China, and its reserves, output and export volume be row the first in the world all.Particularly Bayan Obo its rare earth reserves in packet header rank first in the world, and wherein 97% is light rare earths, and 50% is cerium oxide, since the develop rapidly of magneticsubstance, the Neodymium trioxide overexploitation, and cause cerium oxide to overstock in a large number.Therefore, must reverse this situation as early as possible, open light rare earths, particularly the application surface of cerium.
Developed in the glass art and severally can absorb ultraviolet glass, for example, PPG company is in the ZL97104961.0 patent of China's application, related to a kind of " infrared and ultravillet radiation absorbing green glass composition ", its adopts the soda-lime-silica glass base composition of standard and as iron, cerium, chromium and optional titanium infrared and uv-absorbing substance and tinting material.This glass has the light transmission (LAT) at least about 65%, is no more than total solar ultraviolet perviousness (TSUV) of about 38%.
Shine ZL 200510112140.9 patents of magnificent Pilkington glass limited-liability company application of Chinese Shanghai, related to a kind of " sheet glass of high visible light transmissivity and low ultraviolet ray transmissivity ", it is to add the iron of weight percent 0.7～1.2% (with Fe on the basis of common float glass
2O
3Meter), 0.8～1.5% cerium is (with CeO
2Meter), 0～0.6 titanium is (with TiO
2Meter) and the cobalt of 2～15ppm (with Co
3O
4Meter), the thickness of being founded out be the visible light transmissivity of 4mm glass greater than 70%, and ultraviolet ray transmissivity is less than 10%.
Owens-Brockway Glass Container Inc. is in the ZL1236742A patent of China's application, and it has reduced the UV-light transmission of wavelength below about 400 nanometers, and said composition has fusion similar to soda-lime-silica glass and shaping characteristic, and contains SiO
2, CaO, MgO, K
2O, SO
3Be approximately the FeO+Fe of 0.4～0.8 weight % with the ultraviolet radiation absorption amount
2O
3And the MnO+MnO of about 2～4 weight %
2
Nippon Sheet Glass Co Ltd is in ZL 00802853.2 patent of China's application, relate to a kind of " infrared and ultraviolet radiation heat absorbing glass ", it is a kind of infrared and ultraviolet radiation absorbing glass with green hue, contain the following composition that calculates with weight %: sodium calcium silicon alkali glass and some coloring components.Coloring components includes with Fe
2O
3The total ferric oxide amount of meter 0.40%～0.58%, 0.05～0.5% CeO
2, 0～0.5% TiO
2, and 0.0001%～0.002% CoO.
The ZL 02110302.X patent of Luoyang Glass Co., Ltd.'s application relates to a kind of " coloring agent for UV absorbing yellow float glass ", and the component of the coloring agent for UV absorbing yellow float glass of proposition and weight % are composed as follows: Fe
2O
3Be 0.06～0.18%, MnO
2Be 0.3～0.7%, Co
2O
3Be 0～0.002%, V
2O
5Be 0.05～0.25, the UV absorbing yellow float glass that utilizes this invention tinting material to produce, ultraviolet ray transmissivity is less than 15%, and visible light transmissivity is greater than 70%.
More than invent the effect that the interaction that utilizes mostly between ferric oxide, cerium oxide, the titanium oxide reaches shielding ultraviolet rays, these oxide contents are too high will inevitably give glass coloring, the transmitance of glass visible light is descended, and make glass have yellow or yellow-green colour etc., costing an arm and a leg of cerium oxide, titanium oxide, the glass cost is improved greatly, thereby suppressed the popularization of ultraviolet ray intercepting glass.
Summary of the invention:
The object of the present invention is to provide a kind of uv-absorbing intensity that improves glass and increase the water white functional glass with strong ultraviolet absorption capability of glass the transmitance of visible light.
Technical solution: as the basis, the weight percent of each composition is with the composition of common sodium calcium silicon float glass in the present invention:
The weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3: 0.05～0.3%
In above-mentioned common sodium calcium silicon float glass, add functional rare earth element, account for the float glass weight ratio and be:
Cerous carbonate Ce
2(CO
3)
3: 0.1～3%
Praseodymium carbonate Pr
2(CO
3)
3: 0.05～0.8%
The water white functional glass with strong ultraviolet absorption capability of the present invention, the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3: 0.05～0.3%
In above-mentioned common sodium calcium silicon float glass, add functional rare earth element, account for the float glass weight ratio and be: cerous carbonate Ce
2(CO
3)
30.2～2.5%, praseodymium carbonate Pr
2(CO
3)
30.06～0.7%.
This kind 4mm heavy sheet glass has the visible light transmissivity greater than 80%, and the ultraviolet ray transmissivity less than 20% is used CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.4.
Preferred version of the present invention: water white functional glass with strong ultraviolet absorption capability, the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3Be 0～0.25%
In above-mentioned common sodium calcium silicon float glass, add functional rare earth element, account for the float glass weight ratio and be: cerous carbonate Ce
2(CO
3)
30.2～2.1%, praseodymium carbonate Pr
2(CO
3)
30.1～0.6%.
This kind 4mm heavy sheet glass has the visible light transmissivity greater than 85%, and the ultraviolet ray transmissivity less than 18% is used CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.25.
Preferred version of the present invention: water white functional glass with strong ultraviolet absorption capability, the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3Be 0～0.15%
In above-mentioned common sodium calcium silicon float glass, add functional rare earth element, account for the float glass weight ratio and be: cerous carbonate Ce
2(CO
3)
30.3～1.6%, praseodymium carbonate Pr
2(CO
3)
30.12～0.5%.
This kind 4mm heavy sheet glass has the visible light transmissivity LT greater than 88%, and the ultraviolet ray transmissivity ISOUV less than 14% uses CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.1.
The following describes the reason that the composition to the colourless functional glass with strong ultraviolet absorption capability of the present invention limits, below all percentage ratio be weight %.
SiO
2Be the main component that constitutes the glass skeleton, can reduce the thermal expansivity of glass, improve thermostability, chemical stability, softening temperature, thermotolerance, hardness, physical strength and the viscosity etc. of glass.Content is low excessively, and the various performances of glass can descend, too high levels, and raw material is difficult to fusing.
Na
2O is the outer oxide body of glass network, can reduce the viscosity of glass, make glass be easy to fusion, be the good solubility promoter of glass, but it can increase the thermal expansivity of glass simultaneously, reduce thermostability, chemical stability and the physical strength of glass, institute can not introduce too much, generally be no more than 18%, introduce very fewly, the fusing effect of glass is just poor.
CaO is the outer oxide body of glass network, and the main effect in glass is a stablizer, promptly increases the chemical stability and the physical strength of glass, but content increases the crystallization tendency of glass, and easily make the glass embrittlement when higher, generally is no more than 12.5%.
Ferric oxide is a kind of impurity that contains in the sandstone, and its existence form has FeO and Fe
2O
3Two kinds, FeO can make glass be blue-greenish colour, Fe
2O
3Can make glass be yellow-green colour, the tinting strength of low price iron is approximately 10 times of high price iron tinting strength.No matter be the transparency that high price iron or low price iron all can reduce glass, iron oxide content is mostly between 0.07～0.20% in the raw material of the float glass of China, and the iron oxide content of external or joint line float glass is mostly about 0.05%, so the glass that domestic float glass process is produced generally presents bad blue-greenish colour, thereby reduce transparency and glossiness, influenced the quality of glass.
Ce
2(CO
3)
3At high temperature can be decomposed into CeO
2, CeO in glass
2Can play the absorption action of ultraviolet ray, select Ce (CO among the present invention for use
3)
2And directly do not select CeO for use
2, be because Ce
2(CO
3)
3Pyrolytic decomposition discharges CO
2Gas can quicken the effusion of bubble in the glass, has substituted the part saltcake, has reduced environmental pollution.
CeO
2At high temperature can also continue to decompose, chemical formula is as follows:
CeO
2In pyroreaction, make oxygenant, promptly can reducing iron oxides weaken the tinting strength of iron, can play clarification again and absorb ultraviolet function.But CeO
2Content can not be too high, and the too high high price iron level that makes easily increases, and makes glass show faint yellow.
Pr
2(CO
3)
3At high temperature can decomposite Pr
6O
11, discharge CO simultaneously
2Gas has quickened the clarifying process of glass metal, Pr
6O
11Content absorbs ultraviolet ray when low hardly, but content is also more intense to ultraviolet sorption when high, and too high levels makes glass show pistac, Pr easily
6O
11With CeO
2Add simultaneously and can promote CeO
2To ultraviolet sorption, increase the transmitance of visible light.
Water white functional glass with strong ultraviolet absorption capability of the present invention has higher visible light transmissivity and absorption of UV, and can directly UV light absorber be joined and carry out suitability for industrialized production in the common float glass batch materials, lower and the economic environmental protection of cost is the optimal selection of automobile and glass for building purposes.
Four, embodiment
The present invention will be described in more detail by following example, but the present invention is not subject to following examples.
All use the base furnish of common float glass in following examples, each component content such as table 1:
(by weight percentage, total iron content is with Fe for table 1 embodiment base furnish component list/%
2O
3Meter)
Introduce above various compositions by sandstone, rhombspar, Wingdale, soda ash and saltcake,, take by weighing 100g at every turn, put into corundum crucible, add the Ce that requires basic admixtion thorough mixing
2(CO
3)
3And Pr
2(CO
3)
3, see Table 2, put into behind the mixing and be heated to 1450 ℃ in the resistance furnace, after being incubated after 2 hours glass metal with fusing and being cast on the steel plate that scribbles zirconium powder, put in 550 ℃ the holding furnace and anneal.The thickness of sample of making is about 6mm, and thickness is 4mm after the corase grind polishing.
Content of additive/% in the table 2 embodiment preparing glass charge
Every block of thick glass of polished 4mm is measured visible light transmissivity (LT), total solar ultraviolet transmitance (TSUV) and aberration Δ E respectively with BTF-1 visible light transmissivity tester, TV-1901I twin-beam ultra-violet and visible spectrophotometer and SC-80 colourity color difference meter, see Table 3.
The test result of table 3 embodiment glass
By last table as can be seen, thickness of the present invention is that the glass of 4mm has the visible light transmissivity (LT) greater than 85%, preferably has the visible light transmissivity more than 88%; Total solar ultraviolet transmitance (TSUV) is less than 18%, and preferred total solar ultraviolet transmitance is less than 14%; Aberration Δ E preferably can be less than 0.1 less than 0.4, and effect is very good.
Industrial applicibility:
As above describe in detail, the glass that the present invention produces has high visible light transmissivity and intensive ultraviolet absorptivity, do not change the production technology of float glass, directly add the additive that requires and to realize large-scale industrial production, can be applied in widely automobile and architectural window glass etc.
Claims (7)
1. water white functional glass with strong ultraviolet absorption capability, its prescription is as follows:
The weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3: 0.05～0.3%
In above-mentioned common sodium calcium silicon float glass, add rare earth element, account for the float glass weight ratio and be:
Cerous carbonate Ce
2(CO
3)
3: 0.1～3%, praseodymium carbonate Pr
2(CO
3)
3: 0.05～0.8%.
2. water white functional glass with strong ultraviolet absorption capability is characterized in that: the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3: 0.05～0.3%
In above-mentioned common sodium calcium silicon float glass, add rare earth element, account for the float glass weight ratio and be:
Cerous carbonate Ce
2(CO
3)
30.2～2.5%, praseodymium carbonate Pr
2(CO
3)
30.06～0.7%.
3. by claim 1 or 2 described water white functional glass with strong ultraviolet absorption capability, it is characterized in that: this kind 4mm heavy sheet glass has the visible light transmissivity greater than 80%, and the ultraviolet ray transmissivity less than 20% is used CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.4.
4. water white functional glass with strong ultraviolet absorption capability is characterized in that: the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3Be 0～0.25%
In above-mentioned common sodium calcium silicon float glass, add rare earth element, account for the float glass weight ratio and be:
Cerous carbonate Ce
2(CO
3)
30.2～2.1%, praseodymium carbonate Pr
2(CO
3)
30.1～0.6%.
5. by the described water white functional glass with strong ultraviolet absorption capability of claim 4, it is characterized in that: this kind 4mm heavy sheet glass has the visible light transmissivity greater than 85%, and the ultraviolet ray transmissivity less than 18% is used CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.25.
6. water white functional glass with strong ultraviolet absorption capability is characterized in that: the weight percent of the moiety of common sodium calcium silicon float glass is:
Silicon oxide sio
2: 75～84%
Sodium oxide Na
2O:8～15%
Calcium oxide CaO:5～15%
Magnesium oxide MgO:2～8%
Aluminium oxide Al
2O
3: 0～3%
Ferric oxide Fe
2O
3Be 0～0.15%
In above-mentioned common sodium calcium silicon float glass, add rare earth element, account for the float glass weight ratio and be:
Cerous carbonate Ce
2(CO
3)
30.3～1.6%, praseodymium carbonate Pr
2(CO
3)
30.12～0.5%.
7. by the described water white functional glass with strong ultraviolet absorption capability of claim 6, it is characterized in that: this kind 4mm heavy sheet glass has the visible light transmissivity LT greater than 88%, and the ultraviolet ray transmissivity ISOUV less than 14% uses CIE1976L
*a
*b
*Canonical representation, aberration Δ E is less than 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101644700A CN101624262B (en) | 2009-07-29 | 2009-07-29 | Colorless and transparent functional glass with strong ultraviolet absorption capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101644700A CN101624262B (en) | 2009-07-29 | 2009-07-29 | Colorless and transparent functional glass with strong ultraviolet absorption capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101624262A CN101624262A (en) | 2010-01-13 |
| CN101624262B true CN101624262B (en) | 2011-04-20 |
Family
ID=41520277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101644700A Expired - Fee Related CN101624262B (en) | 2009-07-29 | 2009-07-29 | Colorless and transparent functional glass with strong ultraviolet absorption capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101624262B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466957B (en) * | 2010-03-18 | 2017-02-01 | 杨德宁 | Enameled sheet glass, and preparation method and composite board thereof |
| CN102260041B (en) * | 2010-05-27 | 2013-10-23 | 信义光伏产业(安徽)控股有限公司 | Super-white photovoltaic glass and preparation method and application thereof |
| CN101891388B (en) * | 2010-07-05 | 2013-10-02 | 海洋王照明科技股份有限公司 | White light emitting glass and preparation method thereof |
| CN105923998A (en) * | 2015-12-23 | 2016-09-07 | 江苏通天光学科技有限公司 | Glass composition with high visible light transmittance and strong ultraviolet absorption |
| CN107032601B (en) * | 2017-06-13 | 2019-03-15 | 湖南荣耀玻璃科技有限公司 | Functional glass and its color additive, preparation and application with uvioresistant, near infrared ray and antibacterial |
| CN112062466B (en) * | 2020-09-16 | 2023-04-04 | 深圳南玻科技有限公司 | Ultraviolet-proof glass with small chromatic aberration and preparation method thereof |
-
2009
- 2009-07-29 CN CN2009101644700A patent/CN101624262B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101624262A (en) | 2010-01-13 |
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