Erzincan University Journal of Science and Technology 2149-4584 Erzincan Binali Yıldırım Üniversitesi Material Characterization Malzeme Karekterizasyonu Alginate/ZnO Composition for Paper Coating: Evaluation of Paper Properties Kağıt Yüzey Kaplama için Aljinat/ZnO Kompozisyonu: Kağıt Özelliklerinin Değerlendirilmesi https://orcid.org/0000-0002-3233-7279 Kurtuluş Orçun Çağlar Kastamonu Üniversitesi 03 30 2026 19 1 295 314 11 17 2025 02 11 2026 Copyright © 2008, Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2008 Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Paper and paper-based compounds are frequently coated with various polymeric chemicals to improve their qualities, ranging from surface roughness to printability. Different biological derivatives of polymers, including as starch, chitosan, and cellulose precursors, are routinely utilized to improve paper qualities via various coating approaches. In this investigation, alginates (Als) of varying molecular weights were combined with zinc oxide (ZnO), and the produced compositions (1/1, 1/0.5, 1/0.25) were applied to the filter paper surface using a simple bar coating process. Control and Al/ZnO-coated papers’ density, degradation versus time, oil absorption performances, FTIR spectrum, dry-wet strength, COBB values, air permeabilities, antibacterial activities and SEM images were evaluated for determining Al and Al/ZnO-based coating solutions’ efficiencies. The density values of the papers were found to range from 42.10 g/cm³ to 46.75 g/cm³. The inclusion of ZnO reduces liquid absorption efficiency, which is consistent with the degradation results. The use of ZnO in the coating solution enhanced both the dry strength and water absorption capabilities, leading to strength performance improvements from 0.2134 kN m/g to a range of 0.3220 kN m/g to 0.3652 kN m/g. Contrastly, wet strength performances decreased to 0.0205 kN m/g-0.0262 kN m/g from 0.45 kN m/g. In general, both strength and antibacterial performances show that these papers can be candidates for food packaging material for low-weighted dry substances.

Kağıt ve kağıt esaslı ürünler, kağıdın yüzey pürüzlülüğünden baskı aşamalarına kadar farklı özelliklerin iyileştirilmesi amacıyla farklı polimerik kimyasallarla kaplanmaktadır. Nişasta, kitosan ve selüloz türevleri gibi farklı biyolojik prekursorlar, farklı kaplama işlemleriyle kağıt özelliklerini iyileştirmek amacıyla yaygın olarak kullanılmaktadır. Bu çalışmada, farklı molekül ağırlıklarına sahip aljinatlar (Als), çinko oksit (ZnO) ile karıştırılmış ve hazırlanan bu bileşimler (1/1, 1/0,5, 1/0,25), basit silindirik kaplama yöntemiyle standart filtre kağıdı yüzeyine uygulanmıştır. Kontrol kağıdı ve Al/ZnO solüsyonların kağlama etkinliğinin belirlenmesi amacıyla kağıtların yoğunluk, süreye bağlı bozunma oranı, yağ absorpsiyon performansı, FTIR spektrumu, kuru-ıslak sağlamlık özellikleri, COBB değerleri, hava geçirgenliği, antibakteriyel aktiviteleri ve SEM görüntüleri incelenmiştir. Kağıtların yoğunluk değerleri 42.10 gr/cm3 ile 46.75 gr/cm3 değerleri arasında tespit edilmiştir. ZnO ilavesi bozunma testleri ile benzer şekilde sıvı absorpsiyon performanlarını olumsuz etkilemiştir. Kaplama çözeltisinde ZnO'nun varlığı hem kuru sağlamlık hem de sıvı absorpsiyon performansını olumlu yönde etkileyerek, sağlamlık değerlerinin 0.2134 kN m/g'dan 0.3220 kN m/g ile 0.3652 kN m/g aralığına çıkmasını sağlamıştır. Buna karşılık, ıslak sağlamlık performansları 0.45 kN m/g'dan 0.0205 kN m/g-0.0262 kN m/g'a aralığına düşmüştür. Genel olarak, hem sağlamlık hem de antibakteriyel performanslar, bu kağıtların düşük ağırlıklı kuru özellikli gıda maddeler için bir ambalaj malzemesi adayı olabileceğini göstermektedir.

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