Analisis Variasi Serat Terhadap Sifat Fisik dan Mekanik Komposit Hybird dari Serat Sabut Kelapa, Fiberglass, dan Epoxy
DOI:
https://doi.org/10.55606/teknik.v5i2.7598Keywords:
hybrid composite, coir fiber, mechanical strengthAbstract
The growing demand for lightweight, strong, and eco-friendly materials has encouraged the development of natural fiber-reinforced composites. This study investigates the mechanical properties of hybrid composites made from coconut coir fiber, fiberglass, and epoxy resin. The aim is to evaluate the effect of different fiber volume fractions on the tensile, impact, and flexural strength of the material. Specimens were fabricated using the hand lay-up method with three fiber volume variations: A (10% coir, 20% fiberglass), B (15%:15%), and C (20%:10%), with epoxy matrix fixed at 70%. Mechanical tests followed ASTM D-3039, D-5924, and D-790 standards. The results revealed that Fraction C exhibited the best performance with tensile strength of 25.52 MPa, impact energy of 11.18 J/m², and flexural strength of 71.86 MPa. These values are comparable to or exceed the minimum requirements for helmet shell materials as specified by SNI 1811-2007. Therefore, this hybrid composite shows great potential as an alternative protective material for motorcycle helmets while adding value to local biomass waste.
References
Hidayat, I. S. (2024). Analisis kekuatan tarik dan kekuatan impak komposit serat serabut kelapa dan fiberglass (Doctoral dissertation, Universitas PGRI Semarang).
Kurniawan, V. P. A., Ikhsan, M., Setiajit, S. B., Permana, I., & Pratama, R. A. (2025). Pengaruh perbandingan jarak anyaman serabut kelapa pada komposit hybrid terhadap sifat mekanik uji tarik. Jurnal Teknologi Rekayasa Elektro, Material dan Manufaktur, 1(1), 12–19.
Nugroho, F. A., Hakam, M., & Primaningtyas, W. E. (2022). Pengaruh kombinasi serat karbon-serat sabut kelapa terhadap kekuatan impact dan bending pada aplikasi helm sepeda motor. In Proceedings Conference On Design Manufacture Engineering And Its Application, 6(1).
Nurfatihayati, N., Alfarisi, C. D., Drastinawati, D., Khairat, K., Akbar, M., & Maharani, C. (2023). Pembuatan komposit dari serat sabut kelapa dan resin polyester sebagai material untuk helm. Journal of Bioprocess, Chemical and Environmental Engineering Science, 4(2), 57–64.
Rollastin, B. (2017). Material biokomposit sebagai material alternatif sungkup helm. Manutech: Jurnal Teknologi Manufaktur, 9(1), 6–11.
Sasria, N. (2022). Composite manufacturing of coir fiber-reinforced polyester as a motorcycle helmet material. JMPM (Jurnal Material dan Proses Manufaktur), 6(1), 48–56.
Setiawan, A., Ramadani, T. A., & Ashari, M. L. (2020). Sintesis dan karakterisasi komposit fiber sabut kelapa sawit dengan resin epoksi. Jurnal Teknologi Terapan, 6(1), 76–83.
Shaleh, Y. (2023). Karakterisasi kekuatan tarik dan bending komposit hybrid serat tandan kosong kelapa sawit dengan serat gelas.
Utama, F. Y., & Zakiyya, H. (2016). Pengaruh variasi arah serat komposit berpenguat hibrida fiberhybrid terhadap kekuatan tarik dan densitas material dalam aplikasi body part mobil. Mekanika, 15(2).
Zulkifli, Z., Dharmawan, I. B., & Anhar, W. (2020). Analisa pengaruh perlakuan kimia pada serat terhadap kekuatan impak Charpy komposit serat sabut kelapa bermatriks epoxy. Jurnal Polimesin, 18(1), 47–52.
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