Buğday Sapı Kompozitlerde Farklı Yöntemlerin Islah Performanslarının Değerlendirilmesi

Yıl 2024, Cilt: 25 Sayı: 1, 39 - 51

Ümit Hüner

https://doi.org/10.59314/tujes.1504510

Öz

Bu araştırmanın amacı hem geleneksel hem de yenilikçi tekniklerin buğday samanının
nitelikleri üzerindeki etkisini ve buğday samanını takviye malzemesi olarak kullanan
epoksi kompozitlerin mekanik performansını değerlendirmektir. İşlem için iki farklı
yöntem kullanılmıştır: Alkali işlem (AlT) 25°C'de 1 saat süreyle %5 w/v
konsantrasyonda NaOH kullanılarak, Mikrodalga ışınlama (MwT) ise 20 dakika
süreyle 300 W'da gerçekleştirilmiştir. Alkali ve mikrodalga işlemlerinin her ikisinin de
buğday samanının yüzey morfolojisini değiştirdiği bulunmuştur. Mikrodalga işlemi,
kompozit malzemelerin mekanik özelliklerinde daha fazla iyileşme sağlayarak çekme
mukavemetinde %37 ve eğilme mukavemetinde %62 artış sağlamıştır. Kimyasal
ıslahtan daha temiz olan ve daha iyi performans gösteren mikrodalga ıslahı, daha hassas
malzeme uygulama alanları için umut verici bir performans göstermektedir.

Anahtar Kelimeler

alkali, buğday sapı, mikrodalga, kompozit

Evaluation of Treatment Performance of Different Methods on Wheat Straw Composites

Öz

The objective of this research is to evaluate the impact of both traditional and innovative techniques on the qualities of wheat straw, as well as the mechanical performance of epoxy composites which use wheat straw as a reinforcing material. Two different methods were used for treatment: Alkali treatment (AlT) was carried out using NaOH at concentration of 5% w/v for 1 hour at 25°C, Microwave irradiation (MwT) aws performed at 300 W for 20 minutes. It was found that Alkali and microwave treatment both changed the surface morphology of wheat straw. Microwave treatment provided further improvement in the mechanical properties of the composite materials, enabling a 37% increase in tensile strength and 62% increase in flexural strength. Microwave reclamation, which is cleaner and performs better than chemical reclamation, shows promising performance for more sensitive material application areas.

Anahtar Kelimeler

wheat straw, microwave, alkali, composite

Kaynakça

• Alemdar, Ayse, and Mohini Sain. 2008a. “Bio composites from Wheat Straw Nanofibers: Morphology, Thermal and Mechanical Properties.” Composites Science and Technology 68(2):557–65. doi: 10.1016/j.compscitech.2007.05.044.
• Bolcu, Dumitru, Marius Marinel Stănescu, and Cosmin Mihai Miriţoiu. 2022. “Some Mechanical Properties of Composite Materials with Chopped Wheat Straw Reinforcer and Hybrid Matrix.” Polymers 14(15). doi: 10.3390/polym14153175.
• Gadelmawla, E. S., M. M. Koura, T. M. A. Maksoud, I. M. Elewa, and H. H. Soliman. n.d. “Roughness Parameters” Journal of Materials Processing Technology 123 (2002) 133±145 Ghaffar, Seyed Hamidreza. 2016. Aggregated Understanding of Characteristics of Wheat Straw Node and Internode with Their Interfacial Bonding Mechanisms.
• Ghaffar, Seyed Hamidreza, and Mizi Fan. 2017a. “An Aggregated Understanding of Physicochemical Properties and Surface Functionalities of Wheat Straw Node and Internode.” Industrial Crops and Products 95:207–15. doi: 10.1016/j.indcrop.2016.10.045.
• Kabir, M. M., H. Wang, K. T. Lau, and F. Cardona. 2012a. “Chemical Treatments on Plant-Based Natural Fibre Reinforced Polymer Composites: An Overview.” Composites Part B: Engineering 43(7):2883–92. doi: 10.1016/j.compositesb.2012.04.053.
• Li, Hongqiang, Yongshui Qu, Yongqing Yang, Senlin Chang, and Jian Xu. 2016. “Microwave Irradiation - A Green and Efficient Way to Pretreat Biomass.” Bioresource Technology 199:34–41.
• Li, Xue, Lope G. Tabil, and Satyanarayan Panigrahi. 2007. “Chemical Treatments of Natural Fiber for Use in Natural Fiber-Reinforced Composites: A Review.” Journal of Polymers and the Environment 15(1):25–33.
• Liu, Qi, Yun Lu, Mario Aguedo, Nicolas Jacquet, Canbin Ouyang, Wenqing He, Changrong Yan, Wenbo Bai, Rui Guo, Dorothée Goffin, Jiqing Song, and Aurore Richel. 2017. “Isolation of High-Purity Cellulose Nanofibers from Wheat Straw through the Combined Environmentally Friendly Methods of Steam Explosion, Microwave-Assisted Hydrolysis, and Microfluidization.” ACS Sustainable Chemistry and Engineering 5(7):6183–91. doi: 10.1021/acssuschemeng.7b01108.
• Mengeloglu, Fatih, and Kadir Karakus. 2008. “Thermal Degradation, Mechanical Properties and Morphology of Wheat Straw Flour Filled Recycled Thermoplastic Composites.” Sensors 8:500–519.
• Mittal, Varun, and Shishir Sinha. 2017. “Study the Effect of Fiber Loading and Alkali Treatment on the Mechanical and Water Absorption Properties of Wheat Straw Fiber-Reinforced Epoxy Composites.” Science and Engineering of Composite Materials 24(5):731–38. doi: 10.1515/secm-2015-0441.
• Mohanty, A. K., M. Misra, and L. T. Drzal. 2001. “Surface Modifications of Natural Fibers and Performance of the Resulting Biocomposites: An Overview.” Composite Interfaces 8(5):313–43. doi: 10.1163/156855401753255422.
• Satpathy, Sangram Kishor, Lope G. Tabil, Venkatesh Meda, Satya Narayana Naik, and Rajendra Prasad. 2014. “Torrefaction of Wheat and Barley Straw after Microwave Heating.” Fuel 124:269– 78. doi: 10.1016/j.fuel.2014.01.102.
• Sgriccia, Nikki, and M. C. Hawley. 2007. “Thermal, Morphological, and Electrical Characterization of Microwave Processed Natural Fiber Composites.” Composites Science and Technology 67(9):1986– 91. doi: 10.1016/j.compscitech.2006.07.031.
• Talebnia, Farid, Dimitar Karakashev, and Irini Angelidaki. 2010. “Production of Bioethanol from Wheat Straw: An Overview on Pretreatment, Hydrolysis and Fermentation.” Bioresource Technology 101(13):4744–53. doi: 10.1016/j.biortech.2009.11.080.
• Väisänen, Taneli, Antti Haapala, Reijo Lappalainen, and Laura Tomppo. 2016. “Utilization of Agricultural and Forest Industry Waste and Residues in Natural Fiber-Polymer Composites: A Review.” Waste Management 54:62–73.
• Zou, Yi, Shah Huda, and Yiqi Yang. 2010. “Lightweight Composites from Long Wheat Straw and Polypropylene Web.” Bioresource Technology 101(6):2026–33. doi: 10.1016/j.biortech.2009.10.042.