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澄清剂对高硼硅平板玻璃结构与性能的影响研究
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摘要
高硼硅玻璃是指SiO_2>78%,B_2O_3>10%的硼硅酸盐玻璃。它是美国CORNING公司研究人员Sullivan于1915年发明的,并取得专利。基于浮法技术制备的高硼硅平板玻璃,由于具有优异的抗热震性和化学稳定性、极佳的光透过率、良好的玻璃表面面形、较低的热膨胀系数、厚度规格品种多样化等优点,而广泛应用于平面显示器(如LCD)、生物DNA芯片、光电池以及高档防弹玻璃和高级防火玻璃等领域。
     由于高硼硅玻璃特殊的工艺特点(熔化温度高、澄清困难、硼挥发、易分层分相)难以满足浮法成形工艺,目前国际上能生产高硼硅平板玻璃的只有德国Schott公司,国内该领域尚属空白。高硼硅平板玻璃难于生产的主要原因之一是它的澄清非常困难。气泡的存在影响了玻璃的光学均匀性、机械强度等性能,对平板玻璃来说,属于严重的质量缺陷。因此,高硼硅平板玻璃的澄清研究具有十分重要的意义。
     本论文从探索高硼硅玻璃的制备工艺出发,对实验室里用坩埚熔化高硼硅玻璃的特点进行了研究,确定了最佳的配方和合理的熔制制度。本论文主要针对高硼硅平板玻璃的澄清进行研究。选择在玻璃成分中加入少量的氯化钠、氧化铈、氧化镧、焦锑酸钾作澄清剂。通过比较几种澄清剂的澄清效果,找出了最佳的澄清剂种类及含量。研究表明,单一澄清剂无法达到高硼硅平板玻璃澄清的要求。用稀土氧化物配合氯化钠用作高硼硅玻璃的澄清剂,前者主要用于澄清玻璃中的灰泡,后者主要用于消除尺寸较大的气泡,澄清效果显著,玻璃外观质量和透明度明显提高。而焦锑酸钾不适宜作高硼硅玻璃的澄清剂。
     为了深入研究高硼硅玻璃的结构,采用红外吸收光谱、透射电镜等分析手段,研究各种澄清剂对玻璃微观结构的影响。红外吸收光谱的研究发现,高硼硅玻璃中[SiO_4]、[AlO_4]、[BO_4]共同组成架状结构。由于[BO_4]本身带负电,需要不带电的[BO_3]进行隔离,因此在结构中存在少量硼酸盐基团。加入各种澄清剂没有造成玻璃结构明显的变化。这是因为无机玻璃的振动光谱主要取决于网络结构,而网络外离子的影响是次要的。残余的Cl~-和稀土离子处在结构网络空隙中;而Sb在结构中则形成了(Sb_3O_9)~(3-)环。另外,通过透射电镜观察到了高硼硅玻璃在局
Pyrex glass is a kind of borosilicate which contains above 78% SiO_2 and 13% B2O3. It was invented and granted patent by Sullivan in 1915, researcher of Corning Inc. America. Pyrex flat glass, produced based on floating technology, has a lot of advantages, such as high thermal shock resistance, good chemical resistance, excellent transmissivity, fine level surface, low thermal expansion coefficient and various thickness-standards, therefore it is widely used in plane display(for example LCD), biologic DNA CMOS chip, photoelectric cell, superior quality bulletproof glass and fireproof glass, etc.Pyrex glass is hard to satisfy float-shaping technics because of special technical characteristics (high melting temperature, hard to fining, boron volatilization, layering and phase separation). Now, only Schott Inc. of Germany can produce Pyrex flat glass, while it is a gap in our country. As Pyrex glass is hard to fining, there will be many bubbles in glass, which are considered as serious defects of flat glass and can induce negative effects on properties of glass, such as optical uniformity, mechanical strength, etc. Therefore, it is very important to research fining of Pyrex flat glass.In this essay, starting from preparation processes of Pyrex glass, the characteristics of melting Pyrex glass with crucible in lab were researched, and the optimal composition of glass and proper melting system were determined. The topic of this paper was about fining of Pyrex flat glass. Little NaCl, CeO_2, La_2O_3 and K_2H_2Sb_2O_7.4H_2O were chosen as fining agents. The optimal kind of fining agent and content were determined by comparison with the fining effects. The study suggested that using single fining agent couldn't satisfy the fining require of Pyrex flat glass. When rare earth oxide was compounded with NaCl used as fining agents, the fining effect, apparent quality and transmissivity could be greatly improved. This was because rare earth oxide was mainly used to eliminate fmeseeds while the function of NaCl was to remove bubbles. However, K_2H_2Sb_2O_7.4H_2O was found unfit for fining
    of Pyrex glass.Furtherly, FTIR and TEM measurements were adopted to research the influence of fining agents on the microstructure of Pyrex glass. By FTIR, it was found that in Pyrex glass, [SiO4], [BO4] and [A1O4] formed the frame structure together. As [BO4] is negatively charged, it needs [BO3] to isolate and there were borate group in the structure of glass. The addition of fining agents didn't induce the change of glass structure. This is because FTIR of inorganic glass is mainly determined by the network-structure while not extra-network ions. The remaining Cl" and rare earth ions were located in the interstices of network, while antimony ions formed the (SbaOg) " rings in the structure. By TEM, a small amount of crystals were observed due to phase separation existed on the slight local area of Pyrex glass. Under higher powerful microscopes, many particles, which were similar to "tiny crystal" were observed. Their diameters were about 3~-10nm, which resulted in the un-homogenizing of chemistry and structure. It was suggested that fining agents had no direct influence on the microstructure of glass, as the "tiny crystals" were similar in all kinds of glasses.In this essay, effects of kinds of fining agents on comprehension properties such as density, U-V transmissivity and dielectric were furtherly researched. The densities of Pyrex glass were found between 2.32 and 2.35g/cnr1 and the visible transmissivities varied between 90.8% and 92%. That was to say, fining agents had less influence on them. But they had obvious effect on dielectric constant and dielectric loss of glass. The change of dielectric property had great relativity with the change of inner structure of glass, concentration of mobile ions, concentration of non-bridging oxygens and concentration of apt-to-polarization ion when kinds of fining agents were added.
引文
[1] 王承遇主编,日用玻璃,武汉,武汉工业大学出版社,1996
    [2] 西北轻工业学院主编,玻璃工艺学,北京,轻工业出版社,1982
    [3] D. Ehrt, Structure, properties and applications of borate glasses, Glass Technology, 2000, 41(6), 182~185
    [4] Yoshinary Miura, Hideki Kusano, Tokuro Nanba, Syuji Matsumoto, X-ray photoelectron spectroscopy of sodium borosilicate glasses, Journal of Non-Crystalline Solids, 2001(290), 1~14
    [5] Natalia M. Verdishcheva, Boris A. Shakhmatkin, Adrian C. Wright, The structure of sodium borosilicate glasses, thermodynamic modeling vs. experiment, Journal of Non-Crystalline Solids, 2004(345&346), 39~44
    [6] R. Martens, W. Müller-Warmuth, Structural groups and their mixing in borosilicate glasses of various compositions-an NMR study, Journal of Non-Crystalline Solids, 2000(265), 167~175
    [7] D. Chen, H. Miyoshi, H. Masui, T. Akai, T. Yazawa, NMR Study of structural changes of alkali borosilicate glasses with heat treatment, Journal of Non-Crystalline Solids, 2004(345&346), 104~107
    [8] Nan Jiang, John Silcox, High-energy electron irradiation and B coordination in Na_2O-B_2O_3-SiO_2 glass, Journal of Non-Crystalline Solids, 2004(342), 12~17
    [9] J. M. Roderick, D. Holland, A. P. Howes, C. R. Scales, Density-structure relations in mixed-alkali borosilicate glasses by ~(29)Si and ~(11)B MAS-NMR., Journal of Non-Crystalline Solids, 2001(293-295), 746~751
    [10] H. Miyoshi, D. Chen, H. Masui, T. Yazawa, T. Akai, Effect of calcium additive on structural changes under heat treatment in sodium borosilicate glasses, Journal of Non-Crystalline Solids, 2004(345&346), 99~103
    [11] D. Moncke, D. Ehrt, H. Eckert, V. Mertens, Inflence of melting and annealing conditions on the structure ofborosilicate glasses, Phys. Chem. Glasses, 2003, 44(2),113~116
    [12] D·斯荻伯特,H·G·利克,硼硅酸盐玻璃[P],中国:1155876,1997-7-30
    [13] Christian Kunert, Johannes Roettgers, Roland Leroux, Peter Brix. Glass for thermal shock-resistant beverage containers[P], United States: 0054937, 2003-3-20
    [14] Oliver Gros, Sabine Melson, Roland Leroux, Otmar Becker, Dietrich Busch. Method for producing a chemically pretensioned glass body[P], United States: 5876472, 1999-3-2
    [15] Richard C. Marlor, SG773 borosilicate lighting glass, American Ceramic Society Bulletin, 81(9)
    [16] Jeetendra Sehgal, Setsuro Ito, Brittleness of glass, Journal of Non-Crystalline Solids, 1999(253), 126~132
    [17] 万军鹏,程金树,汤李璎,浅谈硼硅酸盐玻璃的应用现状和发展趋势,玻璃,2004(5),21~25
    [18] Dagmar Hülseberg, Glasses for Microsystems teclmology, Microelectronics, 1997(28), 419~432
    [19] M. J. Jackson, B. Mills, Thermal expansion of alumino-alkalisilicate and alumino-borosilicate glasses-comparision of empirical models, Journal of materials Science letters, 1997(16), 1264~1266
    [20] M. M. Lima, R. Monteiro, Characterisation and thermal behaviour of a borosilicate glass, Thermochimica Acta., 2001(373), 69~74
    [21] Sébastien Dériano, Albert Truyol, Jean-Christophe Sangleboeuf, Tanguy Rouxel, Physical and mechanical properties of a new borosilieate glass, Ann. Chim. Sci. Mat., 2003(28), 55~62
    [22] 唐剑谷,一种高硼硅玻璃管材[P],中国:2429795,2001.5-9
    [23] 靳广智,玻璃-金属真空太阳能集热管[P],中国:2444191,2001-8-22
    [24] 耿海堂,王若冰,用丹纳法生产高硼硅玻璃管的一点体会,玻璃,2003(4),37~38
    [25] Anne Sipp, Daniel R. Neuville, Pascal Richct, Viscosity,configurational entropy and relaxation kinetics of borosilicate melts, Journal of Non-Crystalline Solids, 1997(211),281~293
    [26] 陈金方,玻璃的电熔化与电加热,上海,华东理工大学出版社,2002
    [27] J. T. Wenzel, D. M. Sanders, Sodium and boron vaporization from a bode oxide and a borosilicate glass melt, Phys. Chem. Glass, 1982, 23(2), 47~52
    [28] 王洪强,硼硅玻璃的生产,全国第五届浮法玻璃及深加工玻璃研讨会,2003年4月
    [29] 华兆昌,硼硅酸盐玻璃的熔制,中国玻璃,2005(4),25~31
    [30] 吴伟,生产高硼硅玻璃的电助熔窑炉系统,玻璃与搪瓷,17(2),19~23
    [31] T. Kloss, G. Lautenschlaiger, K. Schneider, Advances in the process of floating borosilicate glasses and some recent applications for specialty borosilicate float glass, Glass Technology, 2000, 41(6), 177~181
    [32] Roland Leroux, Thomas Karschti, Lothar Frenz. Pane construction for a fire protection insulating glazing[P], UK: 2289496, 1995-11-22
    [33] Reiner H. Mauch, Holger Wegener, Anke Kruse, Norbert Hildebrand, Thin glass substrates for mobile applications, Proc. SPIE., 2000(4102), 162~168
    [34] Werner Klein, Schott Glaswerke, Mainz, Glazing against fire, Glastech. Ber, 1993(66), 185~190
    [35] 陈国平,李启甲,殷海荣,玻璃熔制技术最新动向,玻璃与搪瓷,2004(4),48~63
    [36] 李秀芳,刘向东,杨起才,重燧光学玻璃澄清方法的研究,特种玻璃,1985,2(4),36~42
    [37] 陈国良,浅谈浮法玻璃中的气泡,中国玻璃,1999(1),10~14
    [38] S. M. Budd, V. H. Exelby, J. J. Kirwan, The formation of gas bubbles in glass at high temperature, Glass Technology, 1996, 3(4), 124~129
    [39] Faile, S. P., Roy, D. M., Gas solubility of oxygen in glasses, Am. Ceram. Soc., 1973(56), 12~16
    [40] 杜燕军,路有昌,澄清剂对消除玻璃液气泡的机理研究,安阳师范学院学报,2003,65~66
    [41] Franz H., The solubility of water vapor in alkali borate melts, J. Am. Ceram. Soc., 1966(49), 473~477
    [42] Caroline Martel, Héléne Bureau, In situ high-pressure and high-temperature bubble growth in silicic melts, Earth and planetary Science letters, 2001(191), 115~127
    [43] 华东化工学院等,玻璃工艺原理,北京,中国建筑工业出版社,1981
    [44] Y. Zhang, E. M. Stolper, Water diffusion in a basaltic melt, Nature, 1991(351), 1393~1404
    [45] M. Nowak, H. Behrens, An experimental investingation on diffusion of water in haplogranitic melts, Contrib. Mineral. Petrol, 1997(126), 365~376
    [46] Y. Zhang, H. Behrens, H_2O diffusion in rhyolitic melts and glasses, Chem. Geol, 2000(169), 243~262
    [47] Y. Bottinga, M. Javoy, MORB degassing, bubble growth and asent, Chem. Geol., 1990(81), 255~270
    [48] M. Cable, Arshad Ali Naqvi, The refining of a soda-lime-silica glass with antimony, Glass Technology, 1975, 16(1), 2~9
    [49] M. Cable, M. A. Haroon, The action of arsenic as a refining agent, Glass Technology, 1970, 11(2), 48~53
    [50] Justin G. Wood, S. Prabakar, Karl T. Mueller, Carlo G. Pantano, The effects of antimony oxide on the structure of alkaline-earth alumino borosilicate glasses, Journal of Non-Crystalline Solids, 2004(349), 276~284
    [51] T. Hayashi, W. G. Dorfeld, Electrochemical study of As~(3+)/As~(5+) equilibrium in a barium borosilicate glass melt. Journal of Non-Crystalline Solids, 1994(177), 331~339
    [52] 李春宛,氧化铈澄清剂在硬质仪器玻璃中的应用的研究,中国玻璃,1995(1),4~6
    [53] Christina Stalhandske, Glafo, The impact of refining agents on glass colour, Glasteknisk Tidskrift, 2000, 55(3), 65~71
    [54] Xiang Z. D, M. Cable, Redox interactions between Cu and Ce, Sn, As, Sb in a soda-lime-silica glass, Phys. Chem. Glass, 1997, 38(4), 167~172
    [55] 杨尊先,岳爱文,敬承斌,赵修建,姜宏,芒硝及玻璃氧化还原数对玻璃液澄清效果的影响,玻璃与搪瓷,28(6),25~29
    [56] Nemec L., Refining in the Glassmelting process, J. Am. Ceram. Soc., 1977(60), 436~440
    [57] 冯明良,郭利娅,氟和氯在玻璃中的应用,玻璃,2002(6),22~24
    [58] 程继健,吕梦龙,提高玻璃澄清剂效果的研究,硅酸盐学报,1979,7(4),371~379
    [59] 宋京红,林益,杨淑珍,高温显微镜法测定材料物性,陕西建材,2000(8),25~26
    [60] 南京玻璃纤维研究设计院《玻璃测试技术》编写组,玻璃测试技术,北京,中国建筑工业出版社,1987
    [61] 王宗明,何欣翔,孙殿卿,实用红外光谱,石油工业出版社,第二版,1990
    [62] M. Lancaster, J. Powell, A. Porch. Thin-film ferroelectric microwave devices, Supercond. Sci. Technol., 1998(11), 1323~1334
    [63] 杨南如,无机非金属材料测试方法,武汉,武汉工业大学出版社,1993
    [64] 作花济夫,境野照雄,高桥克明编,蒋国栋译,玻璃手册,北京,中国建筑工业出版社,1985
    [65] Sipp A, Neuville D. R, Richet P., Viscosity, configuration entropy and relaxation kinetics of borosilicate melts, Journal of Non-Crystalline Solids, 1997, 211(3), 281~293
    [66] H·基甫生—马威德R·布吕克纳,黄照柏译,玻璃制造中的缺陷,北京,轻工业出版社,1988
    [67] 周锦章,新型玻璃澄清剂的高效特性与使用条件,建材工业技术,1993,8(2),26~28
    [68] 宁青菊,贺海燕,曹力佳,玻璃的澄清分析与研究,彩色显像管,2000(2),21~24
    [69] 沈长治,杨厚德,关于池窑熔化硼硅玻璃的一些问题,玻璃与搪瓷,1980(3),9~17
    [70] Paddy M Hinde,在玻璃生产中使用氧化铈脱色可降低成本,中国玻璃,2003 (4),46~48
    [71] 詹礼桂,彭元庭,荣炳春,稀土氧化镧做玻璃澄清剂的生产试验,玻璃纤维,1994(5),12~16
    [72] 林河成,氧化镧的生产应用及市场,稀土材料,2005(2),5~9
    [73] Bader E., Kombinierte Methode der Differential-Thermoanalyse und Gasprofilmessung mit dem Warmeleitfahigkeitsdetektor zur Untersuchung von Pyrex-Gemengen, Silikattechnik, 1977(28), 23~26
    [74] 钱达兴,周萘,孙道兵,吴知方,黄文,玻璃熔制时影响氧化硼挥发的若干工艺因素,建筑材料学报,1998,1(2),197~200
    [75] Bader E., Thermogasanalytische Untersuchung zum Einschmelzverhalten und zur Lauterung von Thüringer Gerateglas, Silikattechnik, 1978(29), 84~87
    [76] Weyl W. A., The role of sodium sulfate in glass manufature, Glass Ind., 1943(24), 17~20, 39
    [77] 邱关明,稀土光学玻璃,北京,兵器工业出版社,1985
    [78] [英]V.C.法默编,应育浦,汪寿松,李春庚,韩秀伶,李哲,李幼琴译,矿物的红外光谱,北京,科学出版社,1982
    [79] [联邦德国]H·舒尔兹,黄照柏译,玻璃的本质结构和性质,北京,中国建筑工业出版社,1984
    [80] 周萍,蒋荃,屈增龙,刘元新,平板玻璃的成分与密度的关系,中国建材科技,1996,5(2),35~36
    [81] 王凤森译自英国《玻璃》1991(12),容器玻璃中添加B_2O_3组分,中国玻璃,1992(6),48~51
    [82] 王从曾,材料性能学,北京,北京工业大学出版社,2001
    [83] 李标荣,莫以豪,王筱珍,无机介电材料,上海,上海科学技术出版社,1986
    [84] 干福熹编,现代玻璃科学技术(上册),上海,上海科学技术出版社,1988

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