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Pore Control of Porous Insulation Ceramics for Building Materials Fabricated by in-situ Solidification Method

原位凝固法建筑材料用多孔绝缘陶瓷的孔控制

基本信息

批准号：
15310052
负责人：
TAKAHASHI Minoru
金额：
$ 8.96万
依托单位：
Nagoya Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

Ceramic materials and processes should be developed capable not only in alleviating such environmental issues, but also providing a recycling system of generated waste. Developing a porous ceramics as outside construction materials will provide the ceramic tile not only lightness, but also other functions such as insulation, machinability and sound absorbability. In this study, the properties of the porous ceramics fabricated by gelcasting using waste resources were investigated. The gelcasting using waste resources has great benefit for the development of endless recycling system. Through gelcasting, the complex methods in the usual fabrication of construction materials are being simplified.This is because the conventional gelcasting system is neuro-toxin and suffered exfoliation under O2 atmosphere. With natural gel forming agent, the impediments of traditional gelcasting are being minimized and allows the porous shaping under ambient condition. The use of Japanese gelatine, as a gelling agent, enabled the setting of mechanically foamed waste-loaded slurry under ambient atmosphere. This process also allows a development of endless recycling system of waste resources to produce ceramic materials with characteristics. The porous ceramics from waste are potential sound insulator as depicted in their superior sound absorption profile upon comparison with commercially available porous ceramics. Porous materials from waste are good thermal insulators that provide coolness and ventilation. Moreover, gelcasting of waste resources offers the possibility of synthesizing the soil structure.Hollow particles are expected as material of porous ceramics. New synthesis process of inorganic hollow particles was developed. This new process to prepare hollow calcium carbonate particles uses bubbles as templates, and successfully prepared hollow calcium carbonate particles by bubbling CO2/N2 mixed gas into CaCl2.

应该开发陶瓷材料和工艺，不仅能够缓解这种环境问题，而且还能够提供产生的废物的回收系统。开发一种多孔陶瓷作为外部建筑材料，不仅可以提供瓷砖的轻质，还可以提供隔热、可加工和吸声等其他功能。本研究对利用废旧资源进行凝胶注模成型的多孔陶瓷的性能进行了研究。利用废旧资源进行凝胶注模，对发展无穷无尽的循环利用系统具有很大的好处。通过凝胶注模成型，简化了通常建筑材料制备中的复杂方法，这是因为传统的凝胶注模系统是神经毒素，在氧气气氛下会发生剥落。使用天然成胶剂，可以最大限度地减少传统凝胶注模成型的障碍，并允许在环境条件下进行多孔成型。使用日本明胶作为胶凝剂，能够在常压下固化机械发泡的废物装载泥浆。这一工艺还可以开发出无穷无尽的废旧资源回收系统，以生产具有特色的陶瓷材料。与商用多孔陶瓷相比，废旧多孔陶瓷具有良好的吸声性能，是潜在的隔音材料。来自废物的多孔材料是良好的隔热材料，提供凉爽和通风。此外，废弃资源的凝胶注模成型为合成土壤结构提供了可能性。中空颗粒有望成为多孔陶瓷的材料。开发了无机中空粒子的合成新工艺。这一制备中空碳酸钙颗粒的新工艺以气泡为模板，通过向CaCl2中鼓泡二氧化碳/氮气混合气体的方法成功地制备了中空碳酸钙颗粒。