In this research, the chemical composition and morphological properties of canola plant cultivated in Iran were
investigated. Canola straw was collected from a cultivation farm near Babul, Mazandaran, Iran. Average width, fiber
length, lumen diameter and cell wall thickness were measured as 27.95, 860, 18.86, and 4.42 μm, respectively. The
typical chemical composition, involving the amounts of cellulose, lignin, ash and ethanol/acetone extractives, was
determined as 44, 19.21, 6, and 13 wt%, respectively. Optimum pulping conditions were selected applying a cooking
temperature of 170 ºC, and cooking time of 30 min, in addition to the introduction of a 20% sodium sulfite (based on
Na2O). The pulps were refined by a PFI mill. The obtained results showed that the mechanical properties of the
handsheets made from canola NSSC pulp exhibited better properties, in comparison with mixed hardwood NSSC pulp
in production of corrugating paper.
کلید واژگان :
canola, chemical composition, morphological properties, pulp and paper
