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Potential of CMP pulp production of Salix species in comparison to poplar wood


 Start Page 585 | End Page 595


 Due to shortage of harvestable forest wood in Iran, the potential of CMP pulp production from various species of Salix (S. alba, S. fragilis and S. aegyptica), in comparison with populus deltoides, was investigate. The cooking liquor of Mazandaran wood and paper Mill, consisting of 50: 50 ratios of sodium sulfite and sodium bisulfite, and hydrogen peroxide, were used for chemical treatment and bleaching of the pulps, respectively. The results showed that the paper pulps of Salix fragilis and Salix alba had higher bulk and lower opacity than other species, respectively. The highest and lowest tensile strength of papers were related to S. alba and S. fragilis species, and, the highest and lowest burst and tear strength of papers have belonged to Salix aegyptica and populus deltoides species, respectively. The data have shown that Salix species have a good potential to be used as raw material to produce CMP pulp at the cooking yield of 85%. According to the results of this research, Salix alba and are in first and the second priority to produce CMP pulp, at the cooking yield of 85%, respectively.


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