| 摘要 |
PURPOSE:To provide an alumina material excellent in plasticity. CONSTITUTION:This alumina plastic material is prepared by blending and kneading a plate-shaped powdery alumina having <=1.0mum particle size and <=0.1mum thickness and an organic water retention agent with water. As the organic water retention agent, methyl cellulose, polyvinyl alcohol, carboxymethyl cellulose, polyethylene glycol, etc., are preferably used. This material is excellent in plasticity and, therefore, can be molded without requiring a large amount of a binder. Accordingly, a dense molding having stable properties can be obtained. |
