Conventional process and new methods of obtaining porous geopolymers structures

• Grant number: 12/14581-2
• Support type: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): March 01, 2013
• Effective date (End): February 28, 2014
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal researcher: Márcio Raymundo Morelli
• Grantee: Marcelo Strozi Cilla
• Supervisor abroad: Paolo Colombo
• Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Research place: Università degli Studi di Padova, Italy
• Associated to the scholarship: 11/22290-5 - Development of geopolymer ceramic filters for foundry with incorporation of fly ash, BP.DR

Abstract

The geopolymers emerges as products easy to perform, using the same raw materials and waste streams or inorganic industrial solid waste, resulting in products with interesting behavior not only of the mechanical point of view, but also the high level of chemical resistance to most of which have of aggressive media and excellent fire behavior and can be considered as refractory materials. Recently, the manufacturing industry has found a serious problem due to the generation of by-products arising from the production process and are discharged into the environment. Currently there is a growing social and political demands in the pursuit of technologies that allow the reuse of a substantial amount of byproducts. These products should also require little energy to manufacture and easy to recycle, in addition to having properties similar or even improved compared to those exhibited by existing materials. In general, due to the flexibility of the composition and processing techniques, it is possible to direct the development of this new type of material in two main lines of application, low cost materials for use in large amounts, such as building materials, and materials of high performance, such as the metallurgical and petrochemical. In both cases, the Si / Al ratio of the starting materials is the determining factor of the new structure and hence the properties and application of the final product. This paper aims to reconcile the expected result in the development of the thesis project (development of geopolymer pore) with the know-how of the research group at the University of Padova (Processing of porous ceramic structures), with Professor Dr. Paolo Colombo, responsible for conducting and supervising the work during the internship period. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CILLA, MARCELO S.; DE MELLO INNOCENTINI, MURILO D.; MORELLI, MARCIO R.; COLOMBO, PAOLO. Geopolymer foams obtained by the saponification/peroxide/gelcasting combined route using different soap foam precursors. Journal of the American Ceramic Society, v. 100, n. 8, p. 3440-3450, AUG 2017. Web of Science Citations: 7.

CILLA, MARCELO STROZI; MORELLI, MARCIO RAYMUNDO; COLOMBO, PAOLO. Open cell geopolymer foams by a novel saponification/peroxide/gelcasting combined route. Journal of the European Ceramic Society, v. 34, n. 12, p. 3133-3137, OCT 2014. Web of Science Citations: 28.

CILLA, MARCELO STROZI; MORELLI, MARCIO RAYMUNDO; COLOMBO, PAOLO. Effect of process parameters on the physical properties of porous geopolymers obtained by gelcasting. CERAMICS INTERNATIONAL, v. 40, n. 8, B, p. 13585-13590, SEP 2014. Web of Science Citations: 19.