GIDA AMBALAJI İÇİN GERİ DÖNÜŞTÜRÜLMÜŞ ATIK KAĞITTAN ÜRETİLEN POLİMER KAPLI KAĞITLARIN YAĞ BARİYERi VE MEKANiK PERFORMANSLARININ KARŞILAŞTIRMALI DEĞERLENDİRMESİ

Yıl 2025, Cilt: 9 Sayı: 2, 296 - 312, 27.10.2025

Tamer Sözbir

https://doi.org/10.32328/turkjforsci.1721302

Öz

Bu çalışma, geri dönüştürülmüş atık kağıttan üretilen ambalaj kağıtlarının özellikle fast food ambalajlarında kullanımına yönelik olarak yağ direnci ve mekanik performans açısından değerlendirilmesini amaçlamaktadır. Kağıt yapısı ile uyumlu ve yağ bariyer özellikleri ile bilinen beş farklı polimer, laboratuvar tipi bir yüzey kaplama cihazı (size press) ile kağıt yüzeyine uygulanmıştır. Yağ direnci TAPPI T559 kit testi yöntemi ile, mekanik dayanım ise standart çekme dayanımı ve kısa span sıkıştırma testi (SCT) ile ölçülmüştür. Polimer D ve E grupları, 12 saat sonunda yalnızca 4 mm’lik geçirim ile mükemmel yağ bariyeri özellikleri göstermiş ve aynı zamanda yüksek SCT performansı (2.275 kN/m’ye kadar) korumuştur. Buna karşın, polimer A ve B yağ direnci açısından daha düşük performans sergilemiş olsa da, polimer A olağanüstü çekme dayanımı (2355 Nm/kg) ile dikkat çekmiş ve yüksek mekanik dayanım gerektiren uygulamalar için uygun bir seçenek olduğunu göstermiştir. Elde edilen bulgular, polimer D ve E'nin uzun süreli bariyer uygulamaları için ideal olduğunu, polimer A’nın ise mekanik dayanımın ön planda olduğu uygulamalar için daha uygun olduğunu ortaya koymaktadır. Çalışma, sürdürülebilir ve yüksek performanslı kağıt ambalaj malzemelerinin geliştirilmesine katkı sağlayacak biyobazlı ve çevre dostu polimer formülasyonlarına yönelik daha ileri araştırmalara duyulan ihtiyacı vurgulamaktadır.

Anahtar Kelimeler

Polimer kaplamalar , yağ geçirmez kağıtlar , yeri dönüştürülebilir malzemeler , selüloz bazlı malzemeler

COMPARATIVE EVALUATION OF OIL BARRIER AND STRENGTH PERFORMANCE OF POLYMER-COATED PAPERS FROM RECYCLED WASTEPAPER FOR FOOD PACKAGING

Öz

This study investigates packaging papers produced from recycled wastepaper in terms of oil resistance and mechanical performance, especially for fast food applications. Five different polymers known for their compatibility with paper substrates and oil barrier properties were applied to the paper surface using a laboratory-scale size press. Oil resistance was evaluated using the TAPPI T559 kit test method, and mechanical strength was measured through standard tensile strength and SCT (short-span compression test) methods. Polymers D and E exhibited excellent oil barrier properties, with minimal permeation (4 mm) after 12 hours, while also maintaining strong SCT performance (up to 2.275 kN/m). In contrast, although polymers A and B were less effective in oil resistance, polymer A demonstrated outstanding tensile strength (2355 Nm/kg), making it a suitable option for applications requiring high mechanical strength. The findings suggest that polymers D and E are ideal for long-term barrier applications, whereas polymer A is more suitable where mechanical durability is prioritized. The study emphasizes the need for further research on polymer formulations, particularly bio-based and eco-friendly alternatives, to support the development of sustainable and high-performance paper-based packaging materials.

Anahtar Kelimeler

Polymer coatings , oil-resistant papers , recyclable materials , cellulose-based materials

Destekleyen Kurum

KMKPaper R&D Center and TUBİTAK 2244 Program

Teşekkür

This study was conducted by the R&D Center of Kahramanmaraş Paper Factory. The author would like to thank the R&D center staff for their contributions. The author worked on this project as a scholar under the TÜBİTAK 2244 program, supported by grant number 118C060.

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