Hilmi, Allif Rosyidy (2016) Sifat Termomekanik Komposit Peg4000/Sio2 Amorf Menggunakan Dynamic Mechanical Analyzer (Dma) Dengan Variasi Frekuensi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Pengukuran modulus simpan, modulus hilang, faktor
redaman, temperatur transisi gelas (Tg) dan energi aktivasi dari
komposit PEG4000/SiO2 amorf dilakukan dengan menggunakan
mode geser (shear-mode) dari instrumen dynamic mechanical
analyzer (DMA) dengan menerapkan variasi frekuensi.
Komposisi pengisi (filler) dalam komposit adalah 0, 20, 40, 60
dan 80%wt SiO2 amorf. Silika yang digunakan berasal dari pasir
silika Tanah Laut, Pelaihari, Kalimantan Selatan. Pembentukan
komposit dilakukan dengan metode likuid untuk meningkatkan
homogenitas sebaran partikel pengisi. Karakterisasi
menggunakan FT-IR dan XRD mengkonfirmasi terbentuknya
komposit. Pengamatan SEM/EDX dan analisis profil piksel
menunjukkan homogenitas partikel pengisi dalam komposit.
Hasil pengukuran DMA menunjukkan temperatur transisi gelas
(Tg), energi aktivasi degradasi, energi aktivasi transisi gerak
molekul polimer dan modulus simpan dari komposit meningkat
dengan meningkatnya komposisi silika amorf
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Measurement of the storage modulus, loss modulus, tan δ,
glass transition temperature (Tg) and activation energy of
PEG4000/amorphous SiO2 composites have been performed
using a shear-mode dynamic mechanical analyzer (DMA) with
applied frequency variation. The filler content ofthe composite
was 0, 20, 40, 60 dan 80% amorphous SiO2 by weight. The
amorphous SiO2 was derived from silica sand of Tanah Laut,
Pelaihari, South Kalimantan. Composite of PEG4000 and
amorphous silica powder has been prepared by the liquid
methode to increase homogeneity of filler particle distribution.
Characterization using FT-IR and XRD confirmed that it formed
the composites. SEM/EDX observation and PixelProfil analysis
showed homogeneity of filler particles in composite. DMA
measurements showed that the glass transition temperature (Tg),
activation energy for degradation, activation energy for polymer
movement transition and storage modulus of the composites
increased with increasing the amorphous silica content
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 658.423 4 Hil s |
| Uncontrolled Keywords: | Dynamic mechanical analyzer (DMA), energi aktivasi, homogenitas sebaran partikel, komposit PEG4000/SiO2 amorf, modulus simpan |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 12 Feb 2020 05:30 |
| Last Modified: | 12 Feb 2020 05:30 |
| URI: | http://repository.its.ac.id/id/eprint/74836 |
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