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Kelayakan Komposit Rpet -Karbon Aktif Sebagai Filamen 3D Studi Eksperimental Terhadap Sifat Mekanik Meriatun Meriatun; Sugianto Sugianto; Hasdiansah Hasdiansah
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i2.369

Abstract

The accumulation of plastic waste, particularly polyethylene terephalate (PET), has become a serious environmental issue due to its widespread use and long degradation period. Although recycling PET waste offers environmental and economic benefits, its limited mechanical properties restrict its potential application in advanced manufacturing such as 3D printing. Previous studies have shown that reinforcement with carbon-based fillers can improve the performance of recycled PET;however, research on the mechanical characterization of recycled PET composites reinforced with activated carbon remains limited. This study aims to examine the feasibility of polymer composites made from recycled PET reinforced with activated carbon as a raw material for 3D filament production. Recycled PET was mixed with various amounts of activated carbon and mechanically tested according to ASTM D638 (tensile test) and ASTM D256 (impact test). The results showed that the addition of activated carbon affected the tensile strength, elastic modulus, and impact toughness. The optimum composition was obtained at 2.25 g of activated carbon, which provided the best impact resistance. However, the low elongation indicated brittle behavior, suggesting that further modification is required. This study provides an alternative approach for utilizing recycled PET plastic waste as a sustainable and functional material for 3D printing filament
Kelayakan Komposit rPET-Aerosil Sebagai Filamen 3D: Studi Eksperimental Terhadap Sifat Mekanik Zulky Khoiri; Sugianto Sugianto; Idiar Idiar
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i2.372

Abstract

This study evaluated the feasibility of aerosil-reinforced recycled PET (rPET) plastic composite as a filament raw material for 3D printing. Experiments were conducted by varying the aerosil concentration to analyze its effect on mechanical properties based on tensile tests (ASTM D638) and impact tests (ASTM D256). The results showed that the addition of 3 g of aerosil resulted in the highest tensile strength of 10.3 MPa, while the optimal elastic modulus was achieved at the addition of 1.5 g (1993 MPa). Although the overall tensile and elongation properties were still below the standard for commercial PETG filaments, the material's impact toughness actually increased. The addition of 2.25 g of aerosil resulted in the highest impact strength of 145 J/m², which exceeds the standard PETG. It was concluded that the rPET-aerosil composite is worthy of consideration as an environmentally friendly alternative filament, especially for applications that prioritize impact resistance, with the optimum aerosil composition ranging from 2.25-3 grams.
Co-Authors Ariyanto Atikah Araminta Wardiyah Hasdiansah, Hasdiansah Herianto . Idiar Idiar Idiar Ilham Nur Dimas Yahya Indun Irwandi, Muhammad Meriatun Meriatun Michael Salim Wijaya Monica Syalfha Muhamad Hilal Khoidar Muhammad Haritsah Amrullah Naufal Rafiq Muhammad Prabowo , Sandy Pristiansyah, Pristiansyah Rafiq Muhammad, Naufal Ramli Ramli Setyawan, Riko Soni Afriansyah Subkhan Subkhan Tarman, Tarman Verdy Banarma Yusuf Bahtiar Pradana Zarkasih Zarkasih Zulky Khoiri