| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an alumina porous self-supported film having enough strength to be utilized as a self-supporting film, flexibility and high transparency. <P>SOLUTION: This alumina porous self-supporting film comprises the accumulation of fibrous or acicular alumina hydrate particles or alumina particles having 1-10 nm mean minor axis, 30-5,000 mean aspect ratio (major axis/minor axis) and 100-10,000 nm mean major axis, has orientation, has pore distribution of 0.5-20 nm d<SB>peak</SB>(pore diameter), has high transparency, and has light emitting ability by UV excitation. A new alumina porous self-supporting film can be provided which is utilizable as a precursor of an alumina self-supporting film, or utilizable as a material such as an optical material, a sensor element, a separation membrane, a photoelectrochemical film, an ion-conductive film and a catalyst carrier being excellent in heat stability, thermal conductivity, electric insulation properties, etc. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
