METHOD FOR PREPARATION OF BULK SHAPED FOAM ARTICLES

摘要

A process for the preparation of bulk foams which comprises contacting ceramic foam particles with a hydrophobic material to form impregnated and/or coated ceramic foam particles (103) with hydrophobic properties. The impregnated and/or coated ceramic foam particulate material (103) is mixed (108) with a ceramic binding material with or without an organic binder in an aqueous composition solution to form a castable and pressable mixture (109). The castable and pressable mixture (109) is cast (110), and optionally pressed (111), in a mold to form a wet green body (113), which is in turn dried (114) to form a dried green body (115), and is then fired and sintered (116) to form a bulk shape foam article.