Kağıt Üretiminde Bakteriyel Selüloz Katkısının Dolgu Maddesi Tutunumuna Etkisi

Year 2023, , 97 - 108, 31.12.2023

Bora Göktürk , Evren Ersoy Kalyoncu , Emrah Peşman

https://doi.org/10.53501/rteufemud.1341933

Abstract

Dünyada en çok tüketilen malzeme olan kağıt üretiminde, gelişen baskı teknolojisi ile baskı kalitesini ve yüzey düzgünlüğünü geliştirmeye yönelik artan taleplere bağlı olarak dolgu maddeleri yaygın olarak kullanılmaktadır. Bu çalışmada bitkisel selüloza kıyasla birçok üstün özellikleri olan ve birçok farklı endüstri alanında giderek artan kullanım alanı bulan bakteriyel selüloz (BS)’un çöktürülmüş kalsiyum karbonat (PCC) için tutundurucu etkinliği, tek başına ve ilave tutundurucu madde olarak katyonik poliakrilamid (KPAM) ile beraber araştırılmıştır. BS %5, %10 ve %15 oranlarında, kalsiyum karbonat %30 ve KPAM ise %0,02 oranlarında kullanılmıştır. Tutunumun tespiti için, süzüntü suyunun absorbansı ve üretilen kağıdın inorganik madde miktarının belirlenmesi yöntemleri kullanılmıştır. Ayrıca kağıtların mekaniksel ve fiziksel özellikleri de tespit edilmiştir. En yüksek tutunmanın KPAM’in tek kullanımı ile elde edildiği, BS’nin kalsiyum karbonat tutunumunda tek başına sınırlı etki gösterdiği ancak kağıtların sağlamlık özelliklerini arttırdığı belirlenmiştir. Dolgu maddesi tutunumu ile oluşan direnç kayıplarının BS etkisi ile önlenebildiği, bunun için de %10 BS’nin yeterli olduğu sonucuna ulaşılmıştır.

Keywords

Bakteriyel selüloz, Tutunum, Selüloz, CaCO3, PCC, KPAM

The Effect of Bacterial Cellulose Used as an Additive in Paper Production on Filler Retention

Abstract

In paper production, which is the most consumed material in the world, fillers are widely used due to the increasing demands for improving the printing quality and surface smoothness with the developing printing technology. In this study, the binding efficiency of bacterial cellulose (BS), which has many superior properties compared to natural plant cellulose and is increasingly used in many different industrial areas, for precipitated calcium carbonate (PCC) was investigated alone and together with cationic polyacrylamide (CPAM) as an additional binder. BS was used at the rates of 5%, 10% and 15%, PCC at 30% and CPAM at 0.02%. The absorbance of the permeate water and the determination of the amount of inorganic matter of the produced paper were used to determine the sequestration. In addition, the mechanical and physical properties of the papers were determined. It was determined that the highest adhesion was obtained with a single use of CPAM, and BS alone had a limited effect on PCC adhesion, but increased the strength properties of the papers. It has been concluded that the loss of resistance caused by the adhesion of the filler can be prevented by the effect of BS, and 10% BS is sufficient for this.

Keywords

Bacterial cellulose, Retention, Cellulose, CaCO3, PCC, CPAM

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