Published : 2022-08-26

Manufacture of cordierite foams by direct foaming

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.


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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://ichp.vot.pl/index.php/p/article/view/1426