Rozikin, Muhammad Nurhidayatur (2026) Karakterisasi Pengaruh Maleic Anhydride Terhadap Polimer Polikaprolakton (PCL) Yang Diperkuat Serat Rami Dengan Perlakuan Alkalisasi Dan Asetilasi Sebagai Kandidat Material Filamen 3D Printing. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan teknologi 3D printing mendorong pengembangan filamen yang memiliki kinerja tinggi sekaligus ramah lingkungan. Penelitian ini mengkaji pengaruh perlakuan kimia pada serat rami berupa alkalisasi menggunakan larutan NaOH 5% dan asetilasi menggunakan CH₃COOH 5%, serta penambahan Maleic Anhydride (MAH) sebesar 5%, 10%, dan 15% terhadap sifat mekanik, termal, dan morfologi filamen berbasis Polycaprolactone (PCL). Karakterisasi dilakukan melalui uji tarik, contact angle, FTIR, SEM, DMA, dan DSC. Hasil penelitian menunjukkan bahwa perlakuan kimia meningkatkan densitas serat hingga 1,268 g/cm³, menurunkan diameter serat, dan meningkatkan sudut kontak hingga 112,85°. Setelah perlakuan alkalisasi dan asetilasi, benang serat rami menghasilkan rata-rata kekuatan tarik sebesar 217 MPa, regangan 4,52%, dan modulus elastisitas 5,24 MPa. Sampel dengan performa terbaik mencapai kekuatan tarik 255 MPa dan modulus elastisitas 7,80 MPa. Analisis FTIR mengonfirmasi keberhasilan modifikasi PCL melalui peningkatan intensitas puncak karbonil pada rentang 1722–1717 cm⁻¹. Penambahan MAH 10% menghasilkan performa filamen terbaik dengan kekuatan tarik 6,72 MPa, regangan 0,0045, modulus simpan 2.500 MPa, nilai tan delta 0,28, dan suhu transisi gelas (Tg) 65,3°C. Hasil tersebut menunjukkan adanya peningkatan koMpatibilitas antarmuka, stabilitas termal, dan performa termomekanik komposit. Dengan demikian, kombinasi perlakuan alkalisasi, asetilasi, dan penambahan MAH 10% efektif meningkatkan sifat mekanik, termal, dan hidrofobik filamen PCL–serat rami sehingga berpotensi digunakan untuk aplikasi struktural.
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The advancement of 3D printing technology has encouraged the development of high-performance and environmentally friendly filament materials. This study investigates the effects of chemical treatments on ramie fibers, consisting of alkalization using 5% NaOH and acetylation using 5% CH₃COOH, as well as the addition of Maleic Anhydride (MAH) at concentrations of 5%, 10%, and 15%, on the mechanical, thermal, and morphological properties of Polycaprolactone (PCL)-based filaments. Characterization was conducted through tensile testing, contact angle measurement, FTIR, SEM, DMA, and DSC analyses. The results showed that the chemical treatments increased the fiber density to 1.268 g/cm³, reduced the fiber diameter, and increased the contact angle to 112.85°. Following alkalization and acetylation, the ramie fiber yarn exhibited an average tensile strength of 217 MPa, an elongation of 4.52%, and an elastic modulus of 5.24 MPa. The best-performing sample achieved a tensile strength of 255 MPa and an elastic modulus of 7.80 MPa. FTIR analysis confirmed the successful modification of PCL through an increase in the intensity of the carbonyl peak within the range of 1722–1717 cm⁻¹. The addition of 10% MAH produced the best filament performance, with a tensile strength of 6.72 MPa, a strain of 0.0045, a storage modulus of 2,500 MPa, a tan delta value of 0.28, and a glass transition temperature (Tg) of 65.3°C. These results indicate improvements in interfacial compatibility, thermal stability, and the thermomechanical performance of the composite. Therefore, the combination of alkalization, acetylation, and the addition of 10% MAH effectively improved the mechanical, thermal, and hydrophobic properties of PCL–ramie fiber filaments, demonstrating their potential for structural applications.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | 3D printing, Filamen, Maleic Anhydride, Polikaprolakton, Serat Rami. 3D Printing, Filament, Maleic Anhydride, Polycaprolactone, Ramie Fibre. |
| Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis |
| Depositing User: | Muhammad Nurhidayatur Rozikin |
| Date Deposited: | 04 Aug 2026 03:30 |
| Last Modified: | 04 Aug 2026 03:30 |
| URI: | http://repository.its.ac.id/id/eprint/142949 |
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