CN101074146A - 吸收紫外光的低膨胀系数玻璃 - Google Patents

吸收紫外光的低膨胀系数玻璃 Download PDF

Info

Publication number
CN101074146A
CN101074146A CNA2007100493193A CN200710049319A CN101074146A CN 101074146 A CN101074146 A CN 101074146A CN A2007100493193 A CNA2007100493193 A CN A2007100493193A CN 200710049319 A CN200710049319 A CN 200710049319A CN 101074146 A CN101074146 A CN 101074146A
Authority
CN
China
Prior art keywords
glass
coefficient
low
expansion
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2007100493193A
Other languages
English (en)
Other versions
CN101074146B (zh
Inventor
李天国
宋纯才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Guangming Optoelectronics Co Ltd
Quanta Storage Inc
Original Assignee
Chengdu Guangming Optoelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Guangming Optoelectronics Co Ltd filed Critical Chengdu Guangming Optoelectronics Co Ltd
Priority to CN2007100493193A priority Critical patent/CN101074146B/zh
Publication of CN101074146A publication Critical patent/CN101074146A/zh
Application granted granted Critical
Publication of CN101074146B publication Critical patent/CN101074146B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00Compositions for glass with special properties
    • C03C4/08Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
    • C03C4/085Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for ultraviolet absorbing glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/076Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

本发明提供了一种玻璃,其膨胀系数低,且具有良好的吸收紫外光的能力。吸收紫外光的低膨胀系数玻璃,其重量百分比组成为:SiO2:65-70%、B2O3:15-20%、Al2O3:1-5%、Li2O:0-2%、Na2O:0-3%、K2O:3-10%、CeO2:0.2-2%、TiO2:0.2-2%、ZnO:0-2%、ZrO2:0-2%、BaO:0-1%。本发明的玻璃对0-310nm范围波长的紫外光都具有吸收作用,且膨胀系数为50±10×10-7/℃,特别适用于照明行业。

Description

吸收紫外光的低膨胀系数玻璃
技术领域
本发明涉及一种玻璃,特别是涉及一种具有低膨胀系数(α)且对紫外线具有过滤作用的玻璃。
背景技术
由于在生产中,特别是在照明行业,经常要用玻璃与金属钼进行封接,因此,玻璃的膨胀系数必须与金属钼(20℃-300℃时膨胀系数为46-50×10-7/℃)的膨胀系数相匹配,才能保证玻璃在使用过程中不会炸裂。要使玻璃的膨胀系数达到此范围,该玻璃一般采用SiO2-B2O3-Al2O3-K2O系统,该系统要保证低膨胀系数,则必须使用大量的SiO2、B2O3、Al2O3等原料。光源发出的光中有一部分紫外线光,紫外光对人体有害,并且如果光源在塑料器件中使用,将加快塑料的老化速度,为了防止以上缺陷,该玻璃必须具有良好的吸收紫外光的功能。
发明内容
本发明所要解决的技术问题是提供一种玻璃,其膨胀系数低,且具有良好的吸收紫外光的能力。
本发明解决技术问题所采用的技术方案是:吸收紫外光的低膨胀系数玻璃,其重量百分比组成为:SiO2:65-70%、B2O3:15-20%、Al2O3:1-5%、Li2O:0-2%、Na2O:0-3%、K2O:3-10%、CeO2:0.2-2%、TiO2:0.2-2%、ZnO:0-2%、ZrO2:0-2%、BaO:0-1%。
本发明的有益效果是:本发明的玻璃对0-310nm范围波长的紫外光都具有吸收作用,且膨胀系数为50±10×10-7/℃,特别适用于照明行业。具体实施方式
SiO2和B2O3为玻璃的生成体,SiO2在玻璃中具有熔化温度高、膨胀系数低等特点,当玻璃中SiO2含量>70%(重量百分比含量,以下同)时,玻璃的粘度较大,玻璃熔制容易造成结石和气泡等问题;当SiO2含量<65%时,玻璃的膨胀系数又不能降下来。B2O3在玻璃配方中主要起助熔作用,同时具有较低的膨胀系数,实验证明B2O3含量为15-20%较好。
Li2O、Na2O、K2O和ZnO这四种物质在玻璃中主要起助熔的作用,以降低玻璃的粘度,K2O和ZnO还可以增加玻璃的光泽性,但当玻璃中Li2O、Na2O和K2O含量之和高于13%时,将不能保证玻璃的膨胀系数在50±10×10-7/℃;当Li2O、Na2O和K2O含量之和小于3%时,玻璃的粘度非常大,不利于玻璃的溶化,为了增加玻璃的透光性及光泽性,同时保证玻璃的膨胀系数在50±10×10-7/℃的范围内,玻璃中采用了3-10%的K2O、0-3%的Na2O、0-2%的ZnO、0-2%的Li2O。
CeO2和TiO2在玻璃中主要起吸收紫外光的作用,但这两种物质具有着色作用,含量过高将影响玻璃的透光性,实验证明当CeO2为0.2-2%、TiO2为0.2-2%时,玻璃对320纳米以下的紫外光具有较好的吸收作用。
ZrO2和BaO在玻璃中主要起降低玻璃的高温粘度的作用,同时还具有增强玻璃的化学稳定性的作用。为了保证玻璃的膨胀系数在50±10×10-7/℃的范围内,实验证明ZrO2为0-2%、BaO为0-1%时,效果较好。
Al2O3在一定的温度范围内具有负膨胀的膨胀系数,因此对降低玻璃的膨胀系数具有较好的作用,同时还具有阻止玻璃析晶的作用,但由于Al2O3粘度过大,不利于玻璃的熔化,实验证明Al2O3为1-5%较合适。
本发明的生产方法采用常规方法生产,其步骤包括:称量原料,在池铂连熔炉上以1550-1650℃熔化、澄清,1150-1350℃均化成型,得到产品。
下面是本发明的8个实施例和1个比较例:
  实施例   1   2   3   4   5   6   7   8   比较例
  SiO2   67.2   65   68   69   67   66   69.3   70   67
  Al2O3   3.25   4.4   3.3   1   5   4.5   4   3.25   3
  B2O3   18.1   20   18   18   17.5   18   15   18.1   18
  Na2O   0.90   0.6   1.7   1.1   1.1   0.8   3   0   2
  K2O   7.4   8   7.8   7   7   8   3   10   7
  Zn0   0.65   0.4   0.5   0.4   2   0.5   0.6   0   3
  ZrO2   0.1   0   0.1   0   0   2   0.1   0.1   0
  TiO2   0.4   0.2   0.2   2   0.2   0.2   0.3   0.4   0
  CeO2   0.5   0.6   0.6   0.2   0.6   0.5   0.5   2   0
  Li2O   0.5   2   0   1   1   0.5   1   0.5   0
  BaO   1   0.5   0   0   0   0.5   1   1   0
  α×107(20-300℃)   51   50   49   48   51   52   48   47   47
  吸收紫外波长λ(nm)的范围   0-319   0-310   0-310   0-312   0-315   0-320   0-317   0-319   0-255
从上表可以看出:比较例对0-255nm范围波长的紫外光有吸收作用,而对255-310nm范围波长的紫外光不具有吸收作用,而本发明对0-310nm范围波长的紫外光都有吸收作用,既有良好的吸收紫外光的能力,且膨胀系数为50±10×10-7/℃。

Claims (2)

1、吸收紫外光的低膨胀系数玻璃,其特征在于,其重量百分比组成为:SiO2:65-70%、B2O3:15-20%、Al2O3:1-5%、Li2O:0-2%、Na2O:0-3%、K2O:3-10%、CeO2:0.2-2%、TiO2:0.2-2%、ZnO:0-2%、ZrO2:0-2%、BaO:0-1%。
2、吸收紫外光的低膨胀系数玻璃,其特征在于,所述Li2O、Na2O和K2O的重量百分比含量之和为3-13%。
CN2007100493193A 2007-06-16 2007-06-16 吸收紫外光的低膨胀系数玻璃 Active CN101074146B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007100493193A CN101074146B (zh) 2007-06-16 2007-06-16 吸收紫外光的低膨胀系数玻璃

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007100493193A CN101074146B (zh) 2007-06-16 2007-06-16 吸收紫外光的低膨胀系数玻璃

Publications (2)

Publication Number Publication Date
CN101074146A true CN101074146A (zh) 2007-11-21
CN101074146B CN101074146B (zh) 2010-10-06

Family

ID=38975443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007100493193A Active CN101074146B (zh) 2007-06-16 2007-06-16 吸收紫外光的低膨胀系数玻璃

Country Status (1)

Country Link
CN (1) CN101074146B (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010138784A3 (en) * 2009-05-29 2011-01-20 Corning Incorporated Fusion formable sodium free glass
US8975199B2 (en) 2011-08-12 2015-03-10 Corsam Technologies Llc Fusion formable alkali-free intermediate thermal expansion coefficient glass
US9512030B2 (en) 2012-02-29 2016-12-06 Corning Incorporated High CTE potassium borosilicate core glasses and glass articles comprising the same
US10501365B2 (en) 2014-09-25 2019-12-10 Corning Incorporated UV blocking for improved transmission glasses
CN112939455A (zh) * 2021-03-23 2021-06-11 成都光明光电股份有限公司 光学玻璃、光学元件和光学仪器
CN113045199A (zh) * 2021-03-23 2021-06-29 成都光明光电股份有限公司 透紫外玻璃

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010138784A3 (en) * 2009-05-29 2011-01-20 Corning Incorporated Fusion formable sodium free glass
US9371247B2 (en) 2009-05-29 2016-06-21 Corsam Technologies Llc Fusion formable sodium free glass
US10173919B2 (en) 2009-05-29 2019-01-08 Corsam Technologies Llc Fusion formable sodium free glass
US8975199B2 (en) 2011-08-12 2015-03-10 Corsam Technologies Llc Fusion formable alkali-free intermediate thermal expansion coefficient glass
US9643883B2 (en) 2011-08-12 2017-05-09 Corsam Technologies Llc Fusion formable alkali-free intermediate thermal expansion coefficient glass
US9512030B2 (en) 2012-02-29 2016-12-06 Corning Incorporated High CTE potassium borosilicate core glasses and glass articles comprising the same
US10501365B2 (en) 2014-09-25 2019-12-10 Corning Incorporated UV blocking for improved transmission glasses
US11498865B2 (en) 2014-09-25 2022-11-15 Corning Incorporated UV blocking for improved transmission glasses
CN112939455A (zh) * 2021-03-23 2021-06-11 成都光明光电股份有限公司 光学玻璃、光学元件和光学仪器
CN113045199A (zh) * 2021-03-23 2021-06-29 成都光明光电股份有限公司 透紫外玻璃
CN113045199B (zh) * 2021-03-23 2022-04-15 成都光明光电股份有限公司 透紫外玻璃

Also Published As

Publication number Publication date
CN101074146B (zh) 2010-10-06

Similar Documents

Publication Publication Date Title
CN101074146B (zh) 吸收紫外光的低膨胀系数玻璃
JP5336455B2 (ja) ホウ素フリーガラス
CN101591140B (zh) 具有紫外线隔离性能的、用于药物包装的硼硅酸盐玻璃
US7341968B2 (en) Glass plate and method for tempering a glass plate
FR3088321B1 (fr) Vitroceramiques transparentes de quartz-beta a basse teneur en lithium
JP2001080933A (ja) 鉛及びバリウムを含まないクリスタルガラス
US3499775A (en) Ultraviolet-absorbing glass compositions containing cerium and molybdenum oxides
JPWO2015033562A1 (ja) ガラス組成物及び強化ガラス板
WO2014014003A1 (ja) 医薬品容器用ガラス、及びこれを用いた医薬品容器用ガラス管、医薬品容器の製造方法、及び、医薬品容器
US3294556A (en) Tan ophthalmic glass
SE418961B (sv) Fiberglassammansettning
JPH01219036A (ja) 光学ガラス
JPS58125636A (ja) 1.84〜1.87の屈折率および30〜33のアツベ数を有する高屈折率光学ガラス
CN1323967C (zh) 无铅高折射率高色散光学玻璃
CN1903760A (zh) 环保光学玻璃
CN107032602A (zh) 环保重镧火石光学玻璃
CN114423718A (zh) 紫外线透射玻璃
CN102295408B (zh) 一种吸热浮法玻璃
CN101062835A (zh) 环保冕火石光学玻璃
CN1269754C (zh) 无铅冕牌玻璃
JPS6311292B2 (zh)
JPH0656467A (ja) 紫外線吸収性ガラス
CN114430731A (zh) 紫外线透射玻璃
JPH06345482A (ja) 紫外線吸収着色ガラス
SE429852B (sv) Komposition for framstellning av glas med hogt brytningsindex

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant