多孔玻璃毕业论文.docxVIP

内蒙古科技大学本科生毕业设计说明书（毕业论文）题 目：多孔稀土铝硅酸盐玻璃的制备学生姓名：郝英杰学 号：1361142124专 业：无机非金属材料工程班 级：无机2013-1指导教师：王觅堂 教授摘要本文以Y-Al-Si系统玻璃为研究对象，采用有机泡沫浸渍法制备多孔玻璃，期望获得一种高孔隙率、高强度、孔洞贯通好的多孔稀土铝硅酸盐玻璃。本研究采用了新系统制备多孔玻璃，并对已有的调浆工艺进行改进。并通过傅里叶红外光谱仪（FTIR）、热膨胀仪、差式扫描量热等方法，研究了基础玻璃的结构变化、玻璃软化温度、玻璃化转变温度以及基础玻璃析晶温度，还研究了多孔玻璃的体积密度、吸水率、孔隙率等物理性能。研究结果表明在聚氨酯海绵改性40分钟后，以乙基纤维素为粘结剂、聚乙二醇为分散剂，当浆料配比为基础玻璃粉料：56 wt%、EC：1.2 wt%、PEG：5 ml、乙醇：20 ml时，多孔玻璃烧结制度为300℃保温1h，970℃保温3.5h，在这种条件下可获得比较理想的多孔稀土铝硅酸盐玻璃。关键词：稀土铝硅酸盐玻璃；多孔玻璃；有机泡沫浸渍；浆料AbstractIn this paperporous glass was prepared by Y-Al-Si system and porous glass was prepared by organic foam impregnation method to prepare porous rare earth aluminosilicate glass with high porosityhigh strength and good porosity. In this studya new system was used to prepare porous glassand the existing pulp preparation process was improved. The glass structure temperaturethe glass softening temperaturethe transition temperature and the crystallization temperature of the base glass were studied by Fourier transform infrared spectroscopythermal expansion and differential heat. The bulk densitywater absorption and porosity of the porous glass were also analyzed Rate and other physical properties. The results showed that after 40 minutes of polyurethane sponge modificationethyl cellulose was used as binder and polyethylene glycol as dispersant. The slurry was composed of powder: 56 wt%EC: 1.2 wt%PEG: 5 mlEthanol: 20 ml when the ratiothe porous glass sintering temperature is 300℃ for 1h970℃ insulation 3.5h. Under these conditions it is possible to obtain an ideal porous rare earth aluminosilicate glass.Key words:Rare earth aluminosilicate glass；Porous glass；Organic Foam Impregnation；Slurry目录摘要IAbstractII第一章绪论11.1课题背景11.2多孔玻璃发展应用11.2.1多孔玻璃用于固定酶11.2.2医学和生物工程用多孔玻璃21.2.3液、气体分离用多孔玻璃21.2.4 放射性废弃物的处理31.3多孔玻璃制备方法31.3.1发泡烧结法31.3.2 熔融分相法41.3.3有机泡沫浸渍法51.3.4添加造孔剂法51.3.5溶胶一凝胶法61.4影响多孔玻璃比表面积和孔径的因素61.4.1温度的影响61.4.2组分的影响71.4.3掺杂的影响71.4.4其它影响因素81.5选题的目的及意义8第二章实验内容102.1实验所需化学试剂药品102.2实验所需的仪器设备112.3实验总体思路122.4 实验过程