Improvement of high-yield pulp properties by using a small amount of bleached wheat straw pulp.
In this study, the potential of using bleached wheat straw pulp (BWSP) was explored to improve the tensile strength of the high-yield pulp (HYP) while preserving its high bulk property. The results showed that with the addition of 5-10% refined BWSP, the HYP tensile strength can be increased by about 10-20% without sacrificing the bulk. Similar results were obtained by adding refined BWSP into a mixed furnish of bleached kraft pulps (BKPs) and HYP. The explanation was that micro fines from refined BWSP can act as binders to improve the HYP interfiber bonding, as a result, the HYP tensile strength can be improved by using a small amount of BWSP, while the HYP bulk is not significantly affected.
Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, PR China. hongjiezhang1976@hotmail.com
Hongjie
H
Zhang
Zhibin
Z
He
Yonghao
Y
Ni
D010209:Paper; D035261:Plant Components, Aerial / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D013718:Tensile Strength; D014908:Triticum / Q000737:chemistry*
D010936:Plant Extracts