Perbaikan Sifat Mekanik dan Penyerapan Air Komposit Polyester Diperkuat Serat Timoho – PVA Coating
Keywords:
Komposit Polyester, Serat Timoho, PVA Coating, Sifat Mekanik, Penyerapan AirAbstract
ABSTRAK
Investigasi ini memaparkan metode efektif perbaikan performa serat timoho sebagai penguat komposit polyester yaitu dengan perlakuan NaOH + PVA coating. Serat timoho sebagai penguat komposit polyester dibagi menjadi dua tipe yaitu serat timoho tanpa perlakuan dan serat diperlakukan NaOH + PVA coating. Komposit polyester – serat timoho difabrikasi dengan metode hand lay up. Performa komposit yang dikembangkan kemudian diuji karakteristik mekanik, penyerapan air, ketahanan termal dan morphologynya. Hasil pengujian memaparkan bahwa kekuatan tarik komposit mengalami peningkatan secara signifikan setelah perlakuan NaOH + PVA coating. Perlakuan PVA coating menurunkan persentase elongasi komposit, akan tetapi meningkatkan modulus elastisitas komposit. Hal serupa juga terjadi pada ketahanan termal dan ketahanan terhadap air yang meningkat secara signifikan. Pengamatan morphology foto SEM komposit polyester - timoho PVA coating menunjukkan ikatan interface yang lebih baik dengan matrik dibandingkan dengan kompsoit polyester – serat timoho tanpa perlakuan. Dari keseluruhan hasil pengujian menunjukkan bahwa perlakuan PVA coating serat timoho merupakan metode efektif dalam memperbaiki karakteristik komposit sebelum diaplikasikan pada lingkungan dengan kondisi berfluktuatif.
References
Abdul Kader, M., Islam Hridoy, M., Tanvir Khan Somrat, M., Abdul Wares, M., Mamun Rasid, S. R., & Toufiq Imrose Khaledi, M. (2024). Effect of Chemical Treatments and PVA Coating of Fiber on the Properties of Kenaf Fiber Reinforced Epoxy Composites ARTICLE INFORMATION ABSTRACT. In Journal of Engineering and Applied Science (Vol. 08, Issue 02). www.jeas.ruet.ac.bd
Andoko, A., Gapsari, F., Diharjo, K., M R, S., & Siengchin, S. (2023). Isolation of microcellulose from timoho fiber using the process of delinigfication and maceration: Evaluation of physical, chemical, structural, and thermal properties. International Journal of Biological Macromolecules, 224, 48–54. https://doi.org/10.1016/j.ijbiomac.2022.10.225
Erdoğan, M. K., Karakışla, M., & Saçak, M. (2019). Preparation and characterization of electrically semi-conductive polyfuran-coated poly(ethylene terephthalate) fibers. The Journal of The Textile Institute, 110(2), 282–288. https://doi.org/10.1080/00405000.2018.1477487
Gapsari, F., Andoko, A., Diharjo, K., Sanjay, M. R., & Siengchin, S. (2024). The effectiveness of isolation and characterization nanocelullose from Timoho fiber for sustainable materials. Biomass Conversion and Biorefinery, 14(14), 16487–16497. https://doi.org/10.1007/s13399-022-03672-x
Gapsari, F., Purnowidodo, A., Hidayatullah, S., & Suteja, S. (2021). Characterization of Timoho Fiber as a reinforcement in green composite. Journal of Materials Research and Technology, 13, 1305–1315. https://doi.org/10.1016/j.jmrt.2021.05.049
Gapsari, F., Purnowidodo, A., Setyarini, P. H., Hidayatullah, S., Suteja, Izzuddin, H., Subagyo, R., Mavinkere Rangappa, S., & Siengchin, S. (2022). Properties of organic and inorganic filler hybridization on Timoho Fiber‐reinforced polyester polymer composites. Polymer Composites, 43(2), 1147–1156. https://doi.org/10.1002/pc.26443
Gapsari, F., Wijatmiko, I., Andoko, A., Diharjo, K., Mavinkere Rangappa, S., & Siengchin, S. (2024). Modification on Fiber from Alkali Treatment and AESO Coating to Enhance UV-Light and Water Absorption Resistance in Kapok Fiber Reinforced Polyester Composites. Journal of Natural Fibers, 21(1). https://doi.org/10.1080/15440478.2024.2383970
Herlina Sari, N., Hidayatullah, S., & Maharsa Pradityatama, dan. (2025). KARAKTERISTIK DELAMINASI DAN MEKANIK KOMPOSIT EPOXY LAMINAT ANYAMAN SERAT KULIT KAPOK-ALUMINIUM (Vol. 25, Issue 2).
Palola, S., Vuorinen, J., Noordermeer, J. W. M., & Sarlin, E. (2020). Development in additive methods in aramid fiber surface modification to increase fiber-matrix adhesion: A review. In Coatings (Vol. 10, Issue 6). MDPI AG. https://doi.org/10.3390/COATINGS10060556
Abdul Kader, M., Islam Hridoy, M., Tanvir Khan Somrat, M., Abdul Wares, M., Mamun Rasid, S. R., & Toufiq Imrose Khaledi, M. (2024). Effect of Chemical Treatments and PVA Coating of Fiber on the Properties of Kenaf Fiber Reinforced Epoxy Composites ARTICLE INFORMATION ABSTRACT. In Journal of Engineering and Applied Science (Vol. 08, Issue 02). www.jeas.ruet.ac.bd
Andoko, A., Gapsari, F., Diharjo, K., M R, S., & Siengchin, S. (2023). Isolation of microcellulose from timoho fiber using the process of delinigfication and maceration: Evaluation of physical, chemical, structural, and thermal properties. International Journal of Biological Macromolecules, 224, 48–54. https://doi.org/10.1016/j.ijbiomac.2022.10.225
Erdoğan, M. K., Karakışla, M., & Saçak, M. (2019). Preparation and characterization of electrically semi-conductive polyfuran-coated poly(ethylene terephthalate) fibers. The Journal of The Textile Institute, 110(2), 282–288. https://doi.org/10.1080/00405000.2018.1477487
Gapsari, F., Andoko, A., Diharjo, K., Sanjay, M. R., & Siengchin, S. (2024). The effectiveness of isolation and characterization nanocelullose from Timoho fiber for sustainable materials. Biomass Conversion and Biorefinery, 14(14), 16487–16497. https://doi.org/10.1007/s13399-022-03672-x
Gapsari, F., Purnowidodo, A., Hidayatullah, S., & Suteja, S. (2021). Characterization of Timoho Fiber as a reinforcement in green composite. Journal of Materials Research and Technology, 13, 1305–1315. https://doi.org/10.1016/j.jmrt.2021.05.049
Gapsari, F., Purnowidodo, A., Setyarini, P. H., Hidayatullah, S., Suteja, Izzuddin, H., Subagyo, R., Mavinkere Rangappa, S., & Siengchin, S. (2022). Properties of organic and inorganic filler hybridization on Timoho Fiber‐reinforced polyester polymer composites. Polymer Composites, 43(2), 1147–1156. https://doi.org/10.1002/pc.26443
Gapsari, F., Wijatmiko, I., Andoko, A., Diharjo, K., Mavinkere Rangappa, S., & Siengchin, S. (2024). Modification on Fiber from Alkali Treatment and AESO Coating to Enhance UV-Light and Water Absorption Resistance in Kapok Fiber Reinforced Polyester Composites. Journal of Natural Fibers, 21(1). https://doi.org/10.1080/15440478.2024.2383970
Herlina Sari, N., Hidayatullah, S., & Maharsa Pradityatama, dan. (2025). KARAKTERISTIK DELAMINASI DAN MEKANIK KOMPOSIT EPOXY LAMINAT ANYAMAN SERAT KULIT KAPOK-ALUMINIUM (Vol. 25, Issue 2).
Palola, S., Vuorinen, J., Noordermeer, J. W. M., & Sarlin, E. (2020). Development in additive methods in aramid fiber surface modification to increase fiber-matrix adhesion: A review. In Coatings (Vol. 10, Issue 6). MDPI AG. https://doi.org/10.3390/COATINGS10060556
Randis, R., Darmadi, D. B., Gapsari, F., & Sonief, A. A. A. (2024). Isolation and characterization of microcrystalline cellulose from oil palm fronds biomass using consecutive chemical treatments. Case Studies in Chemical and Environmental Engineering, 9. https://doi.org/10.1016/j.cscee.2024.100616
Sari, N. H., Suteja, S., Fudholi, A., Zamzuriadi, A., Sulistyowati, E. D., Pandiatmi, P., Sinarep, S., & Zainuri, A. (2021). Morphology and mechanical properties of coconut shell powder-filled untreated cornhusk fibre-unsaturated polyester composites. Polymer, 222. https://doi.org/10.1016/j.polymer.2021.123657
Sau, S., Pandit, S., & Kundu, S. (2021). Crosslinked poly (vinyl alcohol): Structural, optical and mechanical properties. Surfaces and Interfaces, 25, 101198. https://doi.org/10.1016/j.surfin.2021.101198
Suganthi, S., Vignesh, S., Kalyana Sundar, J., & Raj, V. (2020). Fabrication of PVA polymer films with improved antibacterial activity by fine-tuning via organic acids for food packaging applications. Applied Water Science, 10(4), 100. https://doi.org/10.1007/s13201-020-1162-y
Sugiman, S., Setyawan, P. D., Maryudi, M., & Madnasri, S. (2021). Water absorption, tensile, flexural and impact properties of aged bamboo fibre/nano CaCO3-modified unsaturated polyester composites. Journal of Applied Science and Engineering, 24(2), 239–251. https://doi.org/10.6180/jase.202104_24(2).0013
Suteja, Hidayatullah, S., Gapsari, F., Purnowidodo, A., Susanti, L., Rangappa, S. M., & Siengchin, S. (2025). Enhancing the performance of natural fiber composites: Integrating Walikukun fiber and aluminum filler in epoxy matrices. Reactive and Functional Polymers, 214. https://doi.org/10.1016/j.reactfunctpolym.2025.106302
Wirawan, W. A., Choiron, Moch. A., Siswanto, E., & Widodo, T. D. (2022). Morphology, Structure, and Mechanical Properties of New Natural Cellulose Fiber Reinforcement from Waru (Hibiscus Tiliaceus) Bark. Journal of Natural Fibers, 19(15), 12385–12397. https://doi.org/10.1080/15440478.2022.2060402
Yin, C., Wang, X., Han, Z., Yang, H., Yang, K., Zheng, W., Guan, Q., & Yu, S. (2025). Preparation, Rheological Behavior, and Redispersibility of Bamboo‐Derived Holocellulose Nanofibers. SmartMat, 6(2). https://doi.org/10.1002/smm2.70001
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