H. Mehmet TAŞDEMİR, Alpay ŞAHİN, Ahmet Fırat KARABULUT, Metin GÜRÜ

Nane lifi katkılı atık hurma çekirdeğinden üretilen kompozit malzemenin özelliklerinin incelenmesi

Bu çalışmada, tarımsal bir atık olan hurma çekirdeği kullanılarak polimerik kompozit malzeme üretimi gerçekleştirilmiş ve ahşap malzeme olarak kullanımı incelenmiştir. Polimerik bağlayıcı olarak üre-formaldehit reçinesi kullanılmıştır. Kompozit malzemenin mekanik dayanımı ve yanmazlık özelliği farklı polimer/dolgu maddesi oranlarında (1/1, 1/2, 1/3 ve 1/4) incelenmiştir. Yapıdaki polimer oranın artışı hem mekanik dayanım hem de yanmazlığı artırmıştır. Eşit oranda polimer ve dolgu maddesi içeren kompozit malzemede mekanik dayanım 6,2 MPa ve LOI değeri 50 olarak belirlenmiştir. Malzemenin dayanımını geliştirmek için yapıya ilave edilen nane lifinin mekanik dayanımı geliştirdiği gözlenmiştir. Kompozit malzemedeki dolgu maddesinin artışı ile su absorplama kapasitesinde de artış gözlenmiştir. Elde edilen sonuçlar hurma çekirdeği kullanılarak hazırlanan polimerik kompozit malzemenin ahşap malzemelere alternatif olabileceğini ortaya koymuştur.

Anahtar Kelimeler:

Kompozit malzeme, Hurma çekirdeği; Mekanik dayanım; Limit oksijen İndeksi

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