| 摘要 |
Apparatus for the manufacture of a monolith by extrusion, having a die with a flow path or channel (11) leading to an orifice (15), and a plurality of conduits (20) extending into the flow path. A material for extrusion (e.g. metal oxides) can be supplied into the flow path, and a solvent supplied into the plurality of conduits. Also claimed is a method of making a monolith with a plurality of channels therethrough, wherein a suspension of polymer-coated particles in a solvent are extruded through a primary orifice while a second solvent is extruded through secondary orifices within the primary orifice. The extrusion is carried out into a third solvent to form a monolith precursor that is then sintered to form a monolith. The polymer used could be made from one or more invertible polymers, the second and third solvents could be the same, and the primary orifice could be hexagonal in shape. Also claimed is a monolith having a plurality of channels therethrough, and a plurality of microchannels extending from the channels. |
