Rohmah, Roihatur (2016) Pengaruh Variasi Temperatur Kalsinasi Sio2 Terhadap Sifat Kebasahan Pada Permukaan Hidrofobik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Terinspirasi dengan biomimetic dari daun talas, permukaan
hydrophobic dalam penelitian ini dibuat dengan modifikasi
kekasaran dari SiO2 (Silika). TEOS (Tetraethyl Orthosilicate)
digunakan sebagai sumber silika yang menghasilkan prekursor
SiO2 dengan kemurnian 98,3±0,020 %. Prekursor silika
diperoleh dari metode sol gel dengan HCL 0,1 M sebagai katalis.
Hasil sintesis ini menghasilkan fasa amorphous dengan distribusi
ukuran partikel 1232 nm. Prekursor SiO2 diberi perlakuan panas
dengan variasi temperatur kalsinasi 800, 1000, 1100, 1150, dan
1200 °C dengan waktu tahan selama 2 jam. Fasa silika hasil dari
kalsinasi yaitu semua amorphous dengan puncak berada pada
sudut ±21 °2θ. Lapisan hydrophobic diperoleh dengan
menggunakan spray gun dengan fasa filler silika hasil kalsinasi
berupa fasa amorf. Distribusi ukuran partikel filler silika hasil
kalsinasi temperatur 800, 1000, 1100, 1150, dan 1200 °C
berturut-turut sebesar 534,9 nm, 538,3 nm, 792,7 nm, 564,3 nm,
dan 680,9 nm. Sedangkan permukaan dengan sudut kontak air
dengan filler silika hasil kalsinasi temperatur 800, 1000, 1100,
1150, dan 1200 °C berturut-turut sebesar 96,86°, 90,71°, 80,33°,
92,52°, dan 90,61°
=========================================================================================Inspired by biomimetic lotus leaves, hydrophobic surfaces in
this research were made by a modificatoin roughness of SiO2
(silica). TEOS (Tetraethyl orthosilicate) was used as a source of
silica to produce a precursor SiO2 with a purity of 98.3 ±
0,020%. Silica precursors were obtained by sol gel method with
0.1 M HCl as the catalyst. The synthesis result produced an
amorphous phase with a particle size distribution of 1232 nm.
Given heat treatment to precursor SiO2 used calcination
temperature variations of 800, 1000, 1100, 1150, and 1200 ° C
with a holding time for 2 hours. Silica phase from calcination
process was amorphous with peak angle ± 21°2θ. Fabrication of
composite hydrophobic surfaces were done by using a sprayer
gun with phase of the silica filler from calcination process was
amorphous. Particle size distribution of the silica filler from
calcination process at temperature 800, 1000, 1100, 1150, dan
1200 °C were 534,9 nm, 538,3 nm, 792,7 nm, 564,3 nm, and
680,9 nm, respectively. Meanwhile the water contact angle of the
surface with the silica filler from calcination process at
temperature 800, 1000, 1100, 1150, dan 1200 °C were 96,86°,
90,71°, 80,33°, 92,52°, and 90,61°, respectively
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi6 620.118 Roh p-1 |
| Uncontrolled Keywords: | hydrophobic, sudut kontak air, Tetraethyl orthosilicate (TEOS). |
| Subjects: | Q Science > QC Physics > QC585.75.S55 Silica T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 26 Feb 2020 09:56 |
| Last Modified: | 26 Feb 2020 09:56 |
| URI: | http://repository.its.ac.id/id/eprint/75203 |
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