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Ali Azhar
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Journal : Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan

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The The effect of soaking coconut fiber in an alkaline solution on the tensile strength of composites Arisetya, Danny Arisetya Saputra; Widodo, Akhmad Basuki; Azhar, Ali; Baroroh, Intan; Kristiyono , Tri Agung
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 3, November 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Over time, the world's composite materials industry is increasingly developing. Generally, fiberglass-reinforced composite materials are developed. However, fiberglass fibers are expensive and not environtmentally friendly. The aim of this research was to determine the effect of composites reinforced with coconut fibers soaked in alkali. Specimen making using coconut fiber reinforcement that is pre-soaked using an alkaline chemical compound (Na) with a concentration of 5%. This study carried out tensile testing with variations of coconut fiber and soaked it in alkaline chemical compounds for 1-4 days. The measurement of the tensile strength value in the composite refers to the ASTM D638-02 standard and the tensile strength value will be analyzed using the ANOVA method to determine the significant effect on the soaking treatment of NaOH. The results of the tensile strength test in this study are far from the standard results that have been set by the Indonesian Classification Bureau (BKI) in 2021. So, coconut fiber with alkaline soaking for 1-4 days cannot be used as a substitute for fiberglass as a composite material reinforcement to be applied as the main material of the ship.
Co-Authors Achmad Yoansyah Syah Adi Rahmat Aditya, Bagus Kusuma Akhmad Basuki Widodo Apriyanto, Mulono Arisetya, Danny Arisetya Saputra Bagus Kusuma Aditya Bellarina, Elsy Putri Daryanto Daryanto Dedy Kunhadi Edi Fedriansyah Elsy Putri Bellarina Hermiza Mardesci Intan Baroroh Jafar Abdul Azis Kristiyono , Tri Agung Kristiyono, Tri Agung Kurniadiyanto, Dhedek Marlina Marlina Novitasari, Rifni Novyar Satriawan Fikri, KMS Prasetya, Dimas Pratama, Brachmantiyo Rachman Puspitasari, Feni Rahaju Saraswati Ridwan, Muanif Rofiq, Muchammad Aunur Satriawan Fikri, KMS. Novyar seswandi, agus Yulianti Yulianti