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The effect of fractionation and fine material removal from old corrugated container pulp on the properties of the produced paperboard in comparison to long fiber application

Sayed Saeed Shamsi; Amir Khosravani; Mehdi Rahmaninia

Volume 36, Issue 4 , December 2021, , Pages 382-393

https://doi.org/10.22092/ijwpr.2021.354497.1680

Abstract
  One of the most common types of paper and paperboard production in Iran, is the production of various grades of liner, test liner and corrugated medium from recycled old corrugated containers (OCC) pulp. With the increase in population, rise of consumption rate and start of new paper production mills, ...  Read More

The effect of electerical conductivity on the performance and interaction of cationic starch- anionic nanosilica in pulp slurry

Amir Hossein Mehranfar; Amir Khosravani; Mehdi Rahmaninia

Volume 35, Issue 1 , April 2020, , Pages 102-112

https://doi.org/10.22092/ijwpr.2020.341345.1593

Abstract
  As the papermaking fibers contain negative charge, therefore some polymer additives used in the pulp slurry, possess counter-ions (cationic polyeletrolyte). Meanwhile, due to increase of electrical conductivity (EC) in the suspension, the performance of many polyelectrolytes encounter some problems. ...  Read More