Manufacture of cordierite foams by direct foaming

E. R. Silva; N. Correia; J. M. Silva; F. A. C. Oliveira; F. R. Ribeiro; J. C. Bordado; M. F. Ribeiro

Published : 2022-08-26

Vol. 52 No. 5 (2007)

Manufacture of cordierite foams by direct foaming

E. R. Silva N. Correia J. M. Silva F. A. C. Oliveira F. R. Ribeiro J. C. Bordado M. F. Ribeiro

Abstract

Open cell cordierite foams were prepared by a direct foaming two-component polyurethane (PUR)/ceramic system. Through optimization of several experimental parameters, such as contents of catalyst, and ceramic cordierite precursor, as well plasticizer presence, foams with porosities 85-95 % and densities ranging from 130-410 kg/m3 were obtained. These foams characteristics make them attractive to be used as catalyst supports. The new two-component PUR/ceramic system developed allows the high solid's loading (higher than 40 wt. %). Finer ceramic particles in this system provide better particles' package and cohesion upon sintering, favouring the cordierite foam stability.

Keywords

pianki kordierytowe ; poliuretany ; bezpośrednie spienianie ; porowatość ; gęstość ; struktura komórkowa cordierite foams ; polyurethanes ; direct foaming ; porosity ; density

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Silva, E. R., Correia, N., Silva, J. M., Oliveira, F. A. C., Ribeiro, F. R., Bordado, J. C., & Ribeiro, M. F. (2022). Manufacture of cordierite foams by direct foaming. Polimery, 52(5), 351–356. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1426

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E. R. Silva elisabetesilva@ist.utl.pt

Affiliation
Instituto Superior Tecnico, Departamento de Engenharia Quimica, 1049-001 Lisboa, Portugal

N. Correia

J. M. Silva

F. A. C. Oliveira

F. R. Ribeiro

J. C. Bordado

M. F. Ribeiro