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Yassin, Fouziah Md
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document
PREPARATION AND CHARACTERIZATION OF CARBON NANOFIBERS / METAKAOLIN GEOPOLYMER BASED NANOCOMPOSITE
Abstract
Geopolymer can be considered as a novel material and used as alternative to Ordinary Portland Cement (OPC) due to its environment friendly properties. In this study metakaolin-geopolymer reinforced with carbon nanofibers (CNFs) were prepared and characterized by using X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). Metakaolin-geopolymer based nanocomposites were produced by mixing the alkaline activator contains of 10 M of sodium hydroxide (NaOH) and 8M of sodium silicate (Na 2 SiO 3 ) and subsequently reinforced with 1.0 % of CNFs. The CNFs / Metakaolin Geopolymer based nanocomposites later on sintered at temperature of 700 0 C, 800 0 C, 900 0 C and 1000 0 C. Results from XRD showed that nepheline phases are formed at temperature 900 0 C and 1000 0 C. It was also observed that the crystallinity of geopolymer has been improved. FTIR analysis has exhibited strong bands of IR in range of 725 cm -1 to 1006 cm -1 which is ascribed to symmetric stretching of Si-O-Si