Sifat Termomekanik Komposit Peg4000/Sio2 Amorf Menggunakan Dynamic Mechanical Analyzer (Dma) Dengan Variasi Frekuensi

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 =================================================================================================== 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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