Investigation of the Flexural Performance of Hybrid Epoxy Composites Reinforced with Nanosilica/Sansevieria Trifasciata (Snake Plant) Natural Fiber

Öz

In this study, the flexural performance of hybrid epoxy composites reinforced with natural fibers obtained from Sansevieria Trifasciata (Snake Plant) and nanosilica was investigated. In the first stage of the study, natural fibers were obtained using enzymatic retting methods. The obtained fibers were treated with an alkali process to enhance their epoxy bonding capacities. Following this stage, the fibers were placed horizontally and added to the epoxy matrix with nanosilica powder. The nanosilica content was set at 3% by weight. Additionally, reference samples were produced from pure epoxy. The mechanical properties of the composites produced during the study were characterized by three-point bending tests in accordance with ASTM D790 standards. The results obtained showed that the composite material possesses high strength and elasticity properties. However, the non-uniform fracture behaviours may be due to variations in the material's production process. The study demonstrated the potential of natural composites in environmental sustainability and industrial applications.

Anahtar Kelimeler

• Natural composite
• Nanosilica
• Enzymatic retting
• Mechanical characterization
• Flexural strength

Nanosilika/ Sansevieria Trifasciata (Paşa Kılıcı) Doğal Fiber Katkılı Hibrid Epoksi Kompozitlerin Eğilme Performansının İncelenmesi

Öz

Bu çalışmada, Sansevieria Trifasciata (Paşa Kılıcı) bitkisinden elde edilen doğal lifler ve nanosilika katkılı hibrid epoksi kompozitlerin eğilme performansı araştırılmıştır. Çalışmanın ilk aşamasında, doğal lifler enzimatik havuzlama yöntemleri kullanılarak elde edilmiştir. Elde edilen lifler, alkali işlemden geçirilerek epoksi bağlanma kapasiteleri artırılmıştır. Bu aşamanın ardından, lifler uzunlamasına yerleştirilerek epoksi matrise nanosilika tozu ile eklenmiştir. Nanosilika oranı ağırlıkça %3 olarak belirlenmiştir. Ayrıca saf epoksiden referans numuneler üretilmiştir. Çalışma süresince üretilen kompozitlerin mekanik özellikleri ASTM D790 standartlarına uygun olarak üç nokta eğme testleri ile karakterize edilmiştir. Elde edilen sonuçlar, kompozit malzemenin yüksek mukavemet ve elastikiyet özelliklerine sahip olduğunu göstermektedir. Ancak homojen olmayan kırılma davranışları, malzemenin üretim sürecindeki varyasyonlardan kaynaklanabilir. Çalışma, çevresel sürdürülebilirlik ve endüstriyel uygulamalarda doğal kompozitlerin potansiyelini ortaya koymuştur.

Anahtar Kelimeler

• Doğal kompozit
• Nanoslika
• Enzimatik havuzlama
• Mekanik karakterizasyon
• Eğilme mukavemeti

Kaynakça

1. 1. Mardiyati, M., Steven, S., Rizkiansyah, R.R., Senoaji, A., Suratman, R., 2016. Effects of alkali treatment on the mechanical and thermal properties of Sansevieria trifasciata fiber. AIP Conference Proceedings. 1725, AIP Publishing.
2. 2. Widodo, E., Pratikto, S., Widodo, T.D., 2024. Comprehensive investigation of raw and NaOH alkalized sansevieria fiber for enhancing composite reinforcement. Case Studies in Chemical and Environmental Engineering, 9(100546).
3. 3. Raj, F.I., Pushparaj, L., Thanu, C., 2023. Mechanical characterization of randomly oriented short Sansevieria Trifasciata natural fibre composites. International Polymer Processing, 38(5), 564-581.
4. 4. Shieddieque, A.D., Widyanto, B., Aminanda, Y., 2022. Multi-objective optimization of sansevieria trifasciata fibre reinforced vinyl ester (STF/VE) bio-composites for the sustainable automotive industry. Automotive Experiences, 5(3), 288-303.
5. 5. Mishfa, K.F., Alim, M.A., Repon, M.R., Habibullah, M.D., Tonmoy, M.A.H., Jurkonienė, S., Shukhratov, S., 2024. Preparation and characterization of snake plant fiber reinforced composite: A sustainable utilization of biowaste. SPE Polymers, 5(1), 35-44.
6. 6. Rwawiire, S., Okello, J., Habbi, G., 2014. Comparative evaluation of dynamic mechanical properties of epoxy composites reinforced with woven fabrics from Sansevieria (Sansevieria trifasciata) fibres and banana (Musa sapientum) fibres. Tekstilec, 57(4), 315-320.
7. 7. Ashok Kumar, M., Mallikarjuna, K., Sanjeev Kumar, P.V., Hari Sankar, P., 2020. An experimental studies on the polymer hybrid composites—effect of fibers on characterization. Smart Innovation, Systems and Technologies, 169, 85-92.
8. 8. Kaddami, H., Dufresne, A., Khelifi, B., Bendahou, A., Taourirte, M., Raihane, M., Issartel, N., Sautereau, H., Gerard, J.-F., Sami, N., 2006. Short palm tree fibers–Thermoset matrices composites. Composites Part A: Applied Science and Manufacturing, 37(9), 1413-1422.

9. 9. Hulle, A., Kadole, P., Katkar, P., 2015. Agave Americana leaf fibers. Fibers, 3(1), 64-75.
10. 10. Bulut, Y., Erdoğan, Ü.H., 2011. Selüloz esaslı doğal liflerin kompozit üretiminde takviye materyali olarak kullanımı. Tekstil ve Mühendis, 18(82), 26-35.
11. 11. Yu, H., Yu, C., 2010. Influence of various retting methods on properties of kenaf fiber. The Journal of The Textile Institute, 101(5), 452-456.
12. 12. Shadrach, J., Palani, K., Pitchandi, K., 2015. Evaluation on mechanical properties of woven Aloe vera and sisal fibre hybrid reinforced epoxy composites. Bulletin of Materials Science, 38, 1183-1193.
13. 13. Ortega, Z., Castellano, J., Suárez, L., Paz, R., Díaz, N., Benítez, A.N., Marrero, M.D., 2019. Characterization of Agave americana L. plant as potential source of fibres for composites obtaining. SN Applied Sciences, 1, 1- 9.