In this study, a commercial foundry sand (Seydisehir Eti Aluminium Co. Inc.) was provided as the starting material.
Using this supplied casting sand, silica aerogel production was carried out by sol-gel method. Starting materials chemical
components were determined by doing XRD and XRF analyses to starting industrial casting sand respectively. After analysing
studies, sodium silicate solution was produced from commercial casting sand. During silica aerogel synthesize, 5 different pH
degree was investigated including 2-4-6-8 and 9. Silica aerogel modification (Super hydrophobic) was made by choosing the
optimum pH value. Afer then, on the synthesized experiment sample, FT-IR, BET, SEM and contact angle characterization
studies were realised respectively. As a result of preliminary experiments done with different pH experiments, sample with the
lowest density was determined as pH 8 value.
