Tarımsal Atıklarından Elde Edilen Biyo-kompozitler: Malzemeler, İşleme Yöntemleri ve Performans Değerlendirmesi

Öz

Son yıllarda artan tarımsal atık üretimi, önemli çevresel ve ekonomik zorluklar yaratmakla birlikte, sürdürülebilir malzeme geliştirme için yenilenebilir bir kaynak olarak önemli bir fırsat da sunmaktadır. Bu çalışma, tarımsal atık ve yan ürünlerin biyo-kompozit malzemelerde takviye ve dolgu malzemesi olarak kullanımındaki son gelişmeleri sistematik olarak incelemeyi amaçlamıştır. Çalışma, 2015 ile 2025 yılları arasında hakemli dergilerde yayınlanan çalışmalarda atık türü, lif ekstraksiyonu, yüzey işleme yöntemleri, matris seçimi ve işleme tekniklerinin kompozit malzemelerin performansı üzerindeki etkilerini değerlendirmiştir. Sonuçlar, pirinç kabuğu, buğday samanı, şeker kamışı posası, hindistan cevizi lifi ve fındık kabuğu gibi lignoselülozik kalıntıların, uygun şekilde işlendiğinde, polimerik ve çimentolu kompozitlerin sertliğini ve mukavemetini önemli ölçüde artırdığını göstermektedir. Özellikle, biyo-kompozitlerin anizotropik davranışını ve kırılma mekanizmalarını karakterize etmek ve işlem tutarlılığını sağlamak için çekme, eğilme ve basınç gibi mekanik testlerin gerekli olduğu belirtilmiştir. Termal ve morfolojik analizler, tarımsal atık dolgu maddelerinin düşük konsantrasyonlarda kristalliği ve arayüzey yapışmasını iyileştirerek çekirdeklenme ajanı olarak işlev görebileceğini ortaya koymuştur. Bu avantajlara rağmen, hammadde değişkenliği, neme duyarlılık ve ölçeklenebilirlik ile ilgili zorluklar devam etmektedir. Genel olarak, bu inceleme tarımsal atıklardan elde edilen biyo-kompozitlerin teknik fizibilitesini ve sürdürülebilirlik potansiyelini araştırmıştır. Bu çalışma; biyo-kompozit malzemelerin dayanıklılığını, standardizasyonunu yapısal ve endüstriyel uygulanabilirliğini iyileştirmeyi amaçlayan gelecekteki araştırmalar için bir yol gösterici olabilir.

Anahtar Kelimeler

• Biyokütle değerlendirmesi
• Tarımsal atıklar
• Biyo-kompozitler
• Mekanik karakterizasyon
• Sürdürülebilir malzemeler

Biocomposites Derived from Agricultural Waste: Materials, Processing Methods, and Performance Evaluation

Öz

The increasing production of agricultural waste in recent years, while creating significant environmental and economic challenges, also presents a significant opportunity as a renewable resource for sustainable material development. This study aimed to systematically examine recent developments in the use of agricultural waste and by-products as reinforcement and filler materials in biocomposite production. The effects of waste type, fiber extraction, surface treatment methods, matrix selection, and processing techniques on the performance of composite materials were reviewed using the studies published in peer-reviewed journals between 2015 and 2025. The results show that lignocellulosic residues such as rice husk, wheat straw, sugarcane pulp, coconut fiber, and hazelnut shell, when properly processed, significantly increase the stiffness and the strength of polymeric and cemented composites. In particular, it was noted that mechanical tests such as tensile, flexural, and compressive are necessary to characterize the anisotropic behavior and fracture mechanisms of biocomposites and to ensure process consistency. Thermal and morphological analyses revealed that agricultural waste fillers can function as nucleating agents by improving crystallinity and interfacial adhesion at low concentrations. Despite these advantages, challenges related to raw material variability, moisture sensitivity, and scalability remain. The technical feasibility and sustainability potential of biocomposites derived from agricultural wastes were also evaluated. This study might serve as a guide for future research aimed at improving the durability, standardization, structural and industrial applicability of biocomposite materials.

Anahtar Kelimeler

• Biomass valorization
• Agricultural residues
• Biycomposites
• Mechanical characterization
• Sustainable materials

Kaynakça

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