Forest and Wood Products

Forest and Wood Products

The Effect of Using Cellulose Nanofibers and Cationic Starch on the Properties of Soda-AQ Pulp from Rice Straw

Document Type : Research Paper

Authors
Hadi Hasanjanzadeh 1
Sahab Hedjazi 2
Hossein Yousefi 3
Saied Mahdavi 4
ِِAli Abdolkhani 2
1 MSc Student, College of Natural Resources, University of Tehran, Karaj, I.R. Iran
2 Assistant Professor, College of Natural Resources, University of Tehran, Karaj, I.R. Iran
3 Assistant Professor, College of Wood and Paper Engineering , Gorgan University of Agriculture and Natural Resources, Gorgan, I.R. Iran
4 Research Assistant Professor, Research Institute of Forests and Rangelands, Tehran, I.R. Iran
10.22059/jfwp.2014.50441
Abstract
In this study, the effect of using cellulose nanofibers and cationic starch on the mechanical properties of soda anthraquinone (Soda-AQ) pulp prepared from un-extracted/ alkaline pre-extracted rice straw using conventional hand sheet paper making system with standard wire was investigated. Cellulose nanofibers were added at three ratios of 2, 5 and 10 wt%, mixed with pulps from un-extracted/ alkaline pre-extracted rice straw over 2, 5 and 10 minutes. The consumption ratio of cationic starch was also tuned at 1.5 percent based on dry weight of pulp. The results show that in spite of using conventional hand sheet paper making system, the mechanical strength of paper containing cellulose nanofibers linearly increased. The use of cationic starch had a positive significant effect on the paper properties due to better retention of cellulose nanofibers. The results indicate the success of using cellulose nanofibers with cationic starch in improving the mechanical characteristics of soda-AQ pulp in conventional hand sheet paper making system.
Keywords
alkaline pre-extraction
soda-AQ pulp
rice straw
Cationic starch
Cellulose Nanofiber
mechanical properties
Forest and Wood Products
Volume 67, Issue 1 - Serial Number 1
Spring 2014
Pages 105-117