Farklı mineral katkıların epoksi zemin kaplama malzemesinin ıslanmazlığına ve yüzey enerjisine etkisi

Atilla Evcin, Bahri Ersoy, Tayfun Uygunoğlu, İbrahim Güneş
979 209

Öz


Bu çalışmada epoksi esaslı zemin kaplama malzemesinin ıslanmazlık (hidrofobisite) ve yüzey enerjisi (veya daha yaygın kullanılışı ile serbest yüzey enerjisi) özellikleri üzerine mineral katkı türü ve miktarının etkisi incelenmiştir. Bu amaçla mineral katkı olarak 3 farklı atık ürün (uçucu kül, silis dumanı ve yüksek fırın cürufu) ile kireçtaşı kullanılmıştır. Üretilen her bir katkılı ve katkısız epoksi malzemesinin ıslanmazlık özelliğinin belirlenmesinde, su damlası yayınım yöntemi kullanılarak su ile temas açıları ölçülmüştür.  Epoksi malzemelerin yüzey enerjisi hesaplamaları için ise 3 polar (Su etilen glikol ve formamid) ve 1 apolar (diiodometan) sıvı kullanılarak temas açıları ölçülmüş ve sonra bu temas açısı verilerine göre Fowkes yaklaşımı kullanılarak yüzey enerjileri hesaplanmıştır. Elde edilen sonuçlara göre mineral katkılar az ya da çok epoksinin ıslanmazlık özelliğini düşürmekte ve buna uygun olarak yüzey enerjisini artırmaktadır. Katkı türleri içerisinde epoksinin ıslanmazlık ve yüzey enerjisi özelliklerine en az etki edenin uçucu kül (UK) ve en çok etki edenin ise kireçtaşı olduğu belirlenmiştir.  


Anahtar kelimeler


Epoksi, mineral atık, kompozit, hidrofobisite, yüzey enerjisi, temas açısı

Tam metin:

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