Article Per Year (5 Year)
p-Index From 2021 - 2026
2.589
P-Index
This Author published in this journals
All Journal IPTEK The Journal for Technology and Science Teknika: Jurnal Sains dan Teknologi Dinamisia: Jurnal Pengabdian Kepada Masyarakat Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Pengabdian Perikanan Indonesia Jurnal Bluefin Fisheries Jurnal Airaha Maritime Park: Journal Of Maritime Technology and Socienty Jurnal Polimesin Jurnal Perikanan
Fahriadi Pakaya
Politeknik Kelautan Dan Perikanan Bitung
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Epoxy/unsaturated polyester blends via post-curing process for marine applications Pakaya, Fahriadi; Nantan, Yurika; Tappy, Marinus S.; Simanjuntak, Raman GTH; Huwae, Jozua Ch.; Syam, M. Yusuf; Siregar, Izhary; Subawa, I Nyoman; Urun, Wilfred Yan Krol
Jurnal Teknika Vol 21, No 1 (2025): June 2025
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjst.v21i1.29745

Abstract

Epoxy resins and unsaturated polyester resins are widely used thermosetting polymers with applications in construction, electronics, and maritime industries. However, their respective limitations, such as brittleness in epoxy and reduced mechanical strength in unsaturated polyester, hinder their broader utilization. To address these challenges, blending the two polymers offers a promising approach to enhance their performance. This study investigates the mechanical and thermal properties of epoxy/unsaturated polyester blends enhanced through a post-curing process with stepwise temperature increases. The blends were characterized using FTIR, tensile, impact, and hardness tests in accordance with ASTM standards. Results demonstrate a synergy between the two polymers, with certain compositions (e.g., 90% epoxy/10% unsaturated polyester) achieving improved tensile strength, flexibility, and impact resistance. The highest tensile strength (54.45 N/mm²) was recorded in blends with > 50% unsaturated polyester, while optimal impact toughness (0.1438 J/mm²) was achieved with 90% epoxy and 10% unsaturated polyester. FTIR analysis revealed specific interactions between functional groups that contribute to the improved properties. These findings highlight the potential of epoxy/unsaturated polyester blends for demanding industrial applications, particularly in marine environments requiring high thermal stability and mechanical performance.
Aplikasi Teknologi Biogas Berbasis Limbah Perikanan Pada Masyarakat Di Desa Makalisung, Kecamatan Kema, Sulawesi Utara Nantan, Yurika; Pakaya*, Fahriadi; Tappy, Marinus S.; Barokah; Simanjuntak, Raman G.T.H; Huwae, Joshua Ch.; Yusuf, Fadli
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 1 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i1.14344

Abstract

Limbah perikanan di Kota Bitung banyak yang pada akhirnya di buang ke laut, baik limbah darah, kepala ikan maupun bagian perut ikan. Salah satu manfaat limbah perikanan adalah sebagai biogas. Kegiatan pengabdian pada masyarakat dilaksanakan di desa Makalisung, Sulawesi Utara dengan tema pemanfaatan limbah perikanan sebagai biogas. Kegiatan pengabdian diawali dengan penyiapan bahan dasar biogas berupa darah ikan, jeroan ikan, dan kotoran sapi pada perbandingan volume 1:1:1 yang dibuat satu bulan sebelum pelaksanaan kegiatan. Kemudian dilajutkan dengan kegiatan sosialisasi dan demonstrasi uji nyala saat kegiatan pengabdian. Pada saat kegiatan pengabdian berlangsung, masyarakat sangat tertarik pada materi biogas. Hal ini dibuktikan dengan adanya tanya jawab yang interaktif antara tim pengabdian dengan masyarakat, keaktifan masyarakat dalam demonstrasi uji nyala, keinginan mengembangkan biogas menggunakan kotoran babi pengganti kotoran sapi, serta keinginan masyarakat untuk memasang instalasi biogas di rumah untuk kebutuhan primer rumah tangga seperti untuk memasak dan penerangan.
KAJIAN DAN SOSIALISASI PEMANFAATAN KOMPOSIT FIBERGLASS REINFORCED POLYMER SEBAGAI MATERIAL TONG SAMPAH, PERAHU EKOWISATA DAN PERAHU NELAYAN DI DESA MINAESA yurika Nantan; Fahriadi Pakaya; Marinus S. Tappy; Raman G.T.H. Simanjuntak; Elsari Tanjung Putri; I Nyoman Subawa
Indonesian Journal of Fisheries Community Empowerment Vol 6 No 1 (2026): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v6i1.9810

Abstract

Pengabdian kepada masyarakat Desa Minaesa, Kecamatan Wori, Provinsi Sulawesi Utara, dilakukan dengan tujuan untuk mengkaji dan mensosialisasikan pemanfaatan komposit Fiberglass Reinforced Polymer (FRP) sebagai material tong sampah, perahu ekowisata, dan perahu nelayan. Beberapa pendekatan dilakukan seperti observasi, kuesioner, wawancara, serta dokumentasi yang melibatkan 17 responden terdiri atas masyarakat lokal dengan profesi mayoritas nelayan. Hasil menunjukkan bahwa masyarakat memiliki pengetahuan yang baik tentang komposit FRP dan mendukung penggunaannya, terutama dalam upaya mengurangi pembuangan sampah ke laut dan meningkatkan keselamatan perahu nelayan. Data menunjukkan bahwa sebagian besar responden familiar dengan komposit FRP serta mengakui manfaatnya bagi lingkungan, seperti subtitusi bahan kayu dan termoplastik. Sosialisasi yang dilakukan berhasil meningkatkan kesadaran dan motivasi masyarakat untuk memanfaatkan komposit FRP, dengan potensi besar untuk mendukung ekowisata dan kehidupan nelayan yang lebih aman dan berkelanjutan. Kegiatan ini menegaskan bahwa komposit FRP dapat menjadi solusi yang efektif dan merupakan material yang ramah lingkungan bagi masyarakat Desa Minaesa.
Interfacial modification of high-loading sugar palm fiber/unsaturated polyester biocomposites using alkali–vinyltrimethoxysilane treatment Fahriadi Pakaya; Yurika Nantan; Marinus S. Tappy; I Nyoman Subawa
Jurnal Polimesin Vol 24, No 3 (2026): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i3.8946

Abstract

Natural fiber-reinforced polyester biocomposites are promising lightweight materials, but their performance is often limited by weak fiber–matrix interaction, especially at high fiber loading. This study investigates the effect of combined alkali–Vinyltrimethoxysilane (VTMS) treatment on the flexural and physical properties of sugar palm fiber-reinforced Unsaturated Polyester Resin (UPR) biocomposites. Untreated fiber composites (IU/UPR), NaOH-treated fiber composites (IA/UPR), and NaOH–VTMS-treated fiber composites (IAS/UPR) were fabricated using the hand lay-up method at fiber loadings of 0–50 wt.%. The results showed that IAS/UPR exhibited the best overall performance, particularly at 50 wt.% fiber loading, achieving a flexural strength of 110.59 MPa, compared with 37.20 MPa for IU/UPR and 50.60 MPa for IA/UPR. IAS/UPR also showed lower water absorption, higher density, and lower porosity. Two-way ANOVA confirmed that fiber treatment, fiber loading, and their interaction significantly affected flexural strength, water absorption, and porosity. FTIR analysis indicated the reduction of hemicellulose and lignin-related components, while SEM observations showed improved matrix coverage, fewer interfacial gaps, and reduced fiber pull-out. These results indicate that alkali–VTMS treatment improves interfacial compatibility and extends the effective fiber-loading range of sugar palm fiber/UPR biocomposites.
Co-Authors Ahmad Ilham Ramadhani Ahmad Tubagus Tsani Risqi Aji Aliffa Yusti Octikharisma Andie Murtono Ardhyananta, Hosta Baihaqi Baihaqi Barokah Barokah Ch. Huwae, Jozua Elsari Tanjung Putri Erick Renold Rakinaung GTH Simanjuntak, Raman Haris, Mohamad Huwae, Joshua Ch. Huwae, Jozua Ch Huwae, Jozua Ch. I Nyoman Subawa I Nyoman Subawa I Nyoman Subawa, I Nyoman Jefta Ratela Joshua Ch. Huwae Josua Huwae Jozua Ch Huwae Jozua Ch Huwae Jozua Ch. Huwae Junardi Junardi Maful Suranto Marinus S Tappy Marinus S. Tappy Marinus S. Tappy Mohamad Haris Mohamad Haris Nantan, Yurika Nantan, Yurika Octikharisma, Aliffa Yusti Rakinaung, Erick Renold Raman G.T.H. Simanjuntak S. Tappy , Marinus Simanjuntak, Raman G.T.H Simanjuntak, Raman GTH Siregar, Izhary Subawa, I Nyoman Syam, M. Yusuf Tappy, Marinus S. Urun, Wilfred Yan Krol Wasum Wicaksono, Sigit Tri Wisna Saputri Alfira Yuli Purwanto Yurika Nantan Yurika Nantan Yusuf, Fadli