Silva, Elisabete RibeiroCorreia, N.Silva, J. M.Oliveira, Fernando Almeida CostaRibeiro, F. R. M. C.Bordalo, J. C.Ribeiro, M. F.2010-11-252010-11-252007Silva, E. R.; Correia, N.; Silva, J. M.; Oliveira, F. A. Costa; Ribeiro, F. R. M. C.; Bordalo, J. C.; Ribeiro, M. F. Manufacture of cordierite foams by direct foaming. In: Polimery, Vol. 52, Nº 5, 2007, p. 351-356http://hdl.handle.net/10400.9/1039Open cell cordiereti fosms were prepared by a direct foaming two-component polyurethane (PUR)/ceramic system. Throught optimization of several experimental parameters such as contents of catalysts and ceramic cordiereti precursor, as well as plasticizer presence, foams with porosites 85-95&% and densities ranging from 130-410 kg/m3 were obtained. Thse foams characteristics make them attractive to be used as catalyst supports. The new two-component PUR/ceramics system developped allows the high solid's loading (higher than 40 wt. %). Finer ceramic particles in this system provide better particles packaged and cohesion upon sintering, favouring the cordiereti foam stability.engCordiereti foamPolyurethaneDirect foamingPorosityDensityCellular structurejournal article