Sezgin Koray Gülsoy, Sezgin Oğuz, Saffet Uysal, Serhat Şimşir, Muhsin Tas

Sahil Çamı Kraft Hamuru Ve Kâğıdının Özellikleri Üzerine Potasyum Bor hidrürün (KBH4) Etkisi

Bu çalışmada, sahil çamından (Pinus pinaster Ait.) elde edilen kraft kağıt hamuru ve kağıtlarının özellikleri üzerine potasyum borhidrürün (KBH4) etkileri araştırılmıştır. %0,5, %1, %1,5, ve %2 (fırın kurusu oduna göre) oranında KBH4 pişirme çözeltisine ilave edilerek sabit pişirme koşulları altında Kraft pişirmeleri yapılmıştır. Ayrıca, KBH4 ilavesiz kraft pişirmesi kontrol pişirmesi olarak yapılmıştır. Pişirme çözeltisine KBH4 ilavesinin kağıt hamurunun verimi ve kappa numarası ile hamurların dövme sürelerini artırdığı sonucuna varılmıştır. Kontrol pişirmesine %2 KBH4 ilave edildiğinde elenmiş verim 7,69 puan (%46,21’den %53,90’a) artmıştır. KBH4 ilavesi ile kağıtların parlaklık değerleri artmıştır. Kağıtların sağlamlık özellikleri KBH4 ilavesi ile önemli ölçüde azalmıştır.

Anahtar Kelimeler:

Kraft, Potasyum borhidrür, Kağıt hamuru verimi, Kağıt sağlamlığı, Sahil çamı

The Influence of Potassium Borohydride (KBH4) On Kraft Pulp Properties of Maritime Pine

In this study, the effects of potassium borohydride (KBH4) on maritime pine (Pinus pinaster Ait.) kraft pulp and paper properties were investigated. 0.5%, 1%, 1.5%, and 2% (based on oven-dried wood) KBH4 added kraft cookings were carried out under the fixed cooking conditions. KBH4-free kraft cooking was also done as control cooking. The results revealed that pulp yield, kappa number, and beating time increased with addition of KBH4 to cooking liquor. The screened yield increased 7.69 point (from 46,21% to 53.90%) with 2% KBH4 addition to control cooking. The brightness values of handsheets were increased with KBH4 addition. Strength properties of handsheets significantly decreased with addition of KBH4.

Keywords:

Kraft, Potassium borohydride, Pulp yield, Paper strength, Maritime pine,

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