Sintesis Dan Karakterisasi Campuran Polimer PMMA/PVA/PDMS Sebagai Material Serat Optik Plastik

Fadhil, Muhammad Rois Hasyim (2026) Sintesis Dan Karakterisasi Campuran Polimer PMMA/PVA/PDMS Sebagai Material Serat Optik Plastik. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Beberapa material polimer seperti PMMA, PVA, PDMS memiliki keunggulan dalam hal transparansi dan indeks bias, PVA dalam hal sensitivitas, dan PDMS dalam hal fleksibilitas. Namun, kontribusi dari ketiga polimer tersebut dalam sistem campuran polimer perlu mendapat perhatian dan pemahaman mengenai karakteristik dari sifat campuran tersebut secara komprehensif. Penelitian ini bertujuan untuk menganalisis pengaruh variasi komposisi campuran polimer PMMA/PVA/PDMS terhadap sifat optik, interaksi kimia, struktur mikro, dan mekanisme transmisi cahaya pada material. Selain itu, penelitian ini juga bertujuan untuk mengevaluasi hasil karakterisasi sifat optik dan transmisi cahaya campuran polimer sebagai material optik untuk perambatan cahaya pada serat optik plastik. Campuran polimer dibuat dengan variasi komposisi dari PMMA murni, kemudian penambahan fraksi PVA/PDMS menjadi campuran 90/5/5, 80/10/10, 70/15/15, 80/5/15, 80/15/5, 70/10/20, dan 70/20/10 (wt%). Metode karakterisasi yang digunakan adalah spektroskopi UV-vis, FTIR, SEM, dan pengujian transmisi cahaya. Hasil penelitian menunjukkan bahwa perbedaan komposisi campuran polimer mempengaruhi sifat optik, interaksi kimia, dan struktur mikro yang dihasilkan. Selain itu, mekanisme perambatan cahaya pada campuran polimer dapat ditinjau berdasarkan berilaku absorpsi, transmisi, serta nilai loss yang terukur pada campuran polimer tersebut. Pengukuran loss menunjukkan bahwa perbedaann variasi komposisi pada campuran polimer menghasilkan karakteristik transmisi cahaya yang berbeda-beda terutama pada rentang tampak. Campuran polimer PMMA/PVA/PDMS menghasilkan nilai loss yang relatif besar pada semua komposisi campuran Namun, PMMA murni dan campuran dengan komposisi 70/20/10 menghasilkan nilai loss rata-rata yang relatif lebih rendah sebesar 0,71 dan 3,59 dB, dengan nilai PMMA murni dan campuran 70/20/10 berturut-turut sebesar 4,71-4,95 dan 3,87-4,14 eV, nilai energi Urbach PMMA murni dan campuran 70/20/10 berturut-turut sebesar 0,046 dan 0,068 eV, dan panjang gelombang serapan PMMA murni dan campuran 70/20/10 berturut-turut sebesar 255 dan 308 nm.
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Several polymer materials such as PMMA, PVA, and PDMS exhibit distinct advantages, including transparency and refractive index for PMMA, sensitivity for PVA, and flexibility for PDMS. However, the contribution of these three polymers in a blended polymer system requires comprehensive investigation to achieve a thourough understanding of the characteristic of the resulting polymer blends. This study aims to examine the effect of compotition variation in PMMA/PVA/PDMS polymer blends on their optical properties, chemical interactions, microstructure, and light transmission mechanism of the material. In addition, this research seeks to evaluate the optical property characteristic and light transmission behavior of the polymer blends as optical material for light propagation in plastic optical fiber. The polymer blends were prepared with PMMA as the base material, followed by the addition of PVA and PDMS fractions to form PMMA/PVA/PDMS compositions of 90/5/5, 80/10/10, 70/15/15, 80/5/15, 80/15/5, 70/10/20, and 70/20/10 (wt%). Characterization techniques employed in this study included UV-vis spectroscopy, FTIR, SEM, and light transmission measurement. The results indicate that variations in polymer blend composition significantly influence the optical properties, chemical interactions, and microstructure of resulting material. Furthermore, the light propagation mechanism within the polymer blends can be identified based on their absorption and transmission behavior, as well as the measured optical loss. Loss measurements reveal that different polymer blend compositions produce distinct light transmission characteristics, particularly in the visible region. The PMMA/PVA/PDMS polymer blends exhibit relatively high loss values across all compositions. However, pure PMMA and the blend with a composition of 70/20/10 show relatively lower average loss values of 0,71 and 3,59 dB, respectively. The optical band gap (

Item Type:	Thesis (Other)
Uncontrolled Keywords:	PDMS, PMMA, Polimer, PVA, Sifat Optik PDMS, PMMA, Polymer, PVA, Optical Properties
Subjects:	Q Science > QC Physics > QC451 Spectroscopy T Technology > TA Engineering (General). Civil engineering (General) > TA1800 Fiber Optics T Technology > TP Chemical technology > TP1140 Polymers
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Rois Hasyim Fadhil
Date Deposited:	04 Feb 2026 06:39
Last Modified:	04 Feb 2026 06:39
URI:	http://repository.its.ac.id/id/eprint/132039

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