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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.123  No.1437 (May) (2015)  >  pp.383-388

Journal of the Ceramic Society of Japan
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Synthesis of self-setting Al(OH)3 foams by direct foaming technique

Rizwan AHMAD1) 2), Jang-Hoon HA1), In-Hyuck SONG1) 2)
1) Engineering Ceramic Department, Korea Institute of Materials Science 2) University of Science & Technology

Tailoring the microstructure of porous materials is essential in order to fulfill the various requirements in industry and daily life. Here we present the macroporous self-setting aluminum trihydroxide (ATH) foams which were fabricated by a direct foaming technique. Sodium dodecyl sulfate (SDS) was used as a surfactant and ATH particles were partially hydrophobized by the adsorption of SDS on its surface. Upon frothing, the foam was stabilized by ATH particles. SDS is a long chain surfactant and has low adsorption energy; therefore the microstructure of the foam was set immediately by the addition of ordinary Portland cement. The self-setting ATH foam obtained by this technique has an average cell size ranging from 69 to 140 µm and porosity in the range of 86 to 93%.

Self-setting, Direct foaming, Aluminum trihydroxide, Portland cement, Foams

Received: August 11, 2014
Accepted: February 07, 2015 , Published online: May 01, 2015



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