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

Yıl 2016, Cilt: 18 Sayı: 2, 103 - 106, 15.12.2016

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

https://doi.org/10.24011/barofd.267296

Cited By: 2

Öz

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.

Anahtar Kelimeler

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

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

Öz

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

Kaynakça

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