Open cell geopolymer foams by a novel saponification/peroxide/gelcasting combined route

Autor(es)

Cilla, Marcelo Strozi ^{[1, 2]} ; Morelli, Marcio Raymundo ^[2] ; Colombo, Paolo ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Univ Padua, Dipartimento Ingn Ind, Padua - Italy

^[2] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13560 Sao Carlos, SP - Brazil

^[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 - USA

• Tipo de documento: Artigo Científico
• Fonte: Journal of the European Ceramic Society; v. 34, n. 12, p. 3133-3137, OCT 2014.
• Citações Web of Science: 28

Resumo

Using a novel saponification/peroxide/gelcasting combined route it was possible to produce geopolymer foams with a total porosity of similar to 85 vol%, open porosity as high as similar to 70 vol%, average cell size (D50) of 318 mu m, and possessing a specific surface area of 50 m(2)/g. The in situ formation of surfactants by the saponification reaction of oil in the geopolymer alkaline environment led to increased total and open porosity in comparison to alternative methods for the fabrication of geopolymer foams. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/14581-2 - Processamento convencional e novos métodos de obtenção de estruturas geopoliméricas porosas
• Beneficiário: Marcelo Strozi Cilla
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado