Helianthus Annuus L. Comparison Of The Properties Of Fibers Obtained From The Plant By Methods of Decortication And Retting

Öz

A large amount of sunflower production is carried out in our country. The 2,500,000 tons of sunflower stalks that appeared after production pose a problem for our farmer. In order to clean up this environmental problem from the field, sunflower stalks are destroyed by burning to warm up in winter, broken down and mixed into the soil, or burned after harvesting. It is thought that by obtaining qualified, ecological and naturally decomposing sunflower fiber from the stem of the sunflower plant, which is an agricultural waste, it can increase the added value of agricultural products and contribute to the protection of the environment. In this study, the anatomical characteristics of the stem of the sunflower plant were determined, and natural lignocellulosic fibers were obtained from the sunflower stem by retting and decortication methods (fresh stem, dried stem). Various physical, chemical and mechanical properties of these fibers have been measured. For this purpose, FTIR (Fourier Transform Infrared Spectroscopy) analysis, XRD (X-Ray Diffractometer) analysis and SEM (Scanning Electron Microscope) analysis were applied to the fibers obtained by different methods. Thermal analyses were performed by TG-DTA (Thermogravimetric) analysis. In addition, fiber strength, fiber fineness, fiber length and color measurements were made. The chemical content of the obtained fibers (pectin, lignin, cellulose, hemicellulose) was determined. The properties of the fibers were compared using the obtained data. As a result of the study, it has been seen that the characteristic properties of the sunflower fibers obtained by the retting method are better. It has been determined that the elemental, thermal and crystal structures of the fibers obtained by different methods are similar. It was concluded that sunflower fiber will not be spun as a yarn, but can be used as a natural polymeric composite reinforcement material.

Anahtar Kelimeler

• Helianthus annuus L.
• sunflower stem
• bast fibers
• retting
• decortication
• fiber qualities

Kaynakça

1. [1]. Yılmaz, N. D. Effects of enzymatic treatments on the mechanical properties of corn husk fibers. Journal of the Textile Institute, 2013,104(4), 396-406.
2. [2]. Seiler, G. J., Gulya, T. J., Fredrick, M. L. Exploration for Wild Helianthus Species from the Desert Southwestern USA for Potential Drought Tolerance/Recolección De Las Especias Silvestres Del Género Helianthus En Las Partes Desiertas Del Suroeste De Los Ee. Uu. Como Fuentes De Tolerancia a Sequía Potenciales/Collecte D’espèces Sauvages D’helianthus Dans Les Régions Désertiques Du Sud-Ouest Des Étatsunis En Tant Que Sources Potentielles De Tolérance À La Sécheresse. Helia, 2006, 29(45), 1-10.
3. [3]. Güner, A. Türkiye Bitkileri Listesi. Nezahat Gökyiğit Botanik Bahçesi Yayını, İstanbul, 2013.
4. [4]. Tüfekçi. Ş. Ayçiçeği (Helianthus Annuus L.) Bitkisi. Ereğli Ticaret Borsası, 2019, 14.
5. [5]. Kaya, Y. Ayçiçeği Tarımı. Trakya Tarımsal Araştırma Enstitüsü Müdürlüğü https://arastirma.tarimorman.gov.tr/ttae/Sayfalar/Detay.aspx?SayfaId=54 (accessed at 16.03.2023).
6. [6]. Kaya, Y. Ayçiçeği Tarımı. Edirne Tarım ve Hayvancılık Dergisi, 2018, 10-11.
7. [7]. Korucu, S, Soy, G. 2019. An Investigation on the Effects of Tungsten Carbide and Grafen Reinforcements to Mechanical Properties in the Aluminium Matrix Composites. Düzce University Journal of Science and Technology; 7(3): 1466–1487.
8. [8]. Gedik, G., Avinç, O. O., Yavaş, A. Kenevir lifinin özellikleri ve tekstil endüstrisinde kullanımıyla sağladığı avantajlar. Tekstil Teknolojileri Elektronik Dergisi, 2010, 4(3), 39-48.

9. [9]. Zhang ,J., Zhang, H., Zhang, J. “Evaluation of liquid ammonia treatment on surface characteristics of hemp fiber”, Cellulose, 2013, (21), 569–579.
10. [10]. Özcan, A. (2008). Kağıt yüzey pürüzlülüğünün L* a* b* değerleri üzerine etkisinin belirlenmesi. İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi, 7(14), 53-61.
11. [11]. Toker, M.C. Bitki morfolojisi, Ankara Üniversitesi Fen Fakültesi, Biyoloji Bölümü, II. Baskı, Ankara, 2004, 140.
12. [12]. Mert, M. Lif Bitkileri( 3. Baskı). Nobel Yayın Dağıtım, Ankara, 2020, 448.
13. [13]. Algan, G., Toker, M.C. Bitki Hücresi ve Morfolojisi Laboratuvar Kitabı. A.Ü. Fen Fakültesi Biyoloji Bölümü A.Ü. Fen Fakültesi Döner Sermaye İşletmesi Yayınları, Ankara, 2004, 143.
14. [14]. Sudha, S., Thilagavathi, G. Effect of alkali treatment on mechanical properties of woven jute composites, The Journal of The Textile Institute, 2016, 107(6), 691-701.
15. [15]. Bulut, Y. and Aksit, A. A comparative study on chemical treatment of jute fiber: potassium dichromate, potassium permanganate and sodium perborate trihydrate. Cellulose, 2013, 20 (6), 3155–3164.
16. [16]. De Rosa, I. M., Kenny, J. M., Puglia, D., Santulli, C., Sarasini, F. Morphological, thermal and mechanical characterization of okra (Abelmoschus esculentus) fibres as potential reinforcement in polymer composites, Composites Science and Technology, 2010, 70(1), 116-122.