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DEVELOPMENT OF SODIUM SILICATE FREE BASED GEOPOLYMERS FOR UREA DIFFUSION STUDIES

ABDUL RAHIM, ROSNIZA HANIM (2016) DEVELOPMENT OF SODIUM SILICATE FREE BASED GEOPOLYMERS FOR UREA DIFFUSION STUDIES. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

Geopolymers are inorganic polymers produced by alkali activation of materials rich in silica (Si) and alumina (Al). Limited studies has been done in synthesizing geopolymers without the use of sodium silicate solution. The objective of this work is to synthesise and evaluate the properties of geopolymers without using sodium silicate solution by varying Si/Al ratio using rice husk ash (RHA), sodium hydroxide (NaOH) concentration and solid/liquid ratio. The properties of geopoylmers studiedwere setting time, compressive strength, bulk porosity anddensity at different curing conditions for potential applications asa material forcoating urea. Further analysis of the geopolymers was also done using FESEM, XRD and FTIR. Geopolymer layers were prepared from selected samples for diffusion study using a diffusion cell to determine the diffusion coefficient.

Item Type: Thesis (Masters)
Academic Subject : Academic Department - Chemical Engineering - Process System Engineering
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 25 Sep 2021 20:45
Last Modified: 25 Sep 2021 20:45
URI: http://utpedia.utp.edu.my/id/eprint/21888

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