Molaei, M., Enayati, A., Hamzeh, Y., Rostaei, M. (2010). Preparation of Bleached Soda Pulp from Canola Stalks. , 25(1), 80-90. doi: 10.22092/ijwpr.2010.117269
Mohammad Molaei; Aliakbar Enayati; Yahya Hamzeh; Maryam Rostaei. "Preparation of Bleached Soda Pulp from Canola Stalks". , 25, 1, 2010, 80-90. doi: 10.22092/ijwpr.2010.117269
Molaei, M., Enayati, A., Hamzeh, Y., Rostaei, M. (2010). 'Preparation of Bleached Soda Pulp from Canola Stalks', , 25(1), pp. 80-90. doi: 10.22092/ijwpr.2010.117269
Molaei, M., Enayati, A., Hamzeh, Y., Rostaei, M. Preparation of Bleached Soda Pulp from Canola Stalks. , 2010; 25(1): 80-90. doi: 10.22092/ijwpr.2010.117269

Preparation of Bleached Soda Pulp from Canola Stalks

تحقیقات علوم چوب و کاغذ ایران
Article 8, Volume 25, Issue 1 - Serial Number 32, September 2010, Pages 80-90    PDF (153.01 K)
Document Type: Research Paper
DOI: 10.22092/ijwpr.2010.117269
Authors
Mohammad Molaei* 1; Aliakbar Enayati2; Yahya Hamzeh3; Maryam Rostaei4
1Ph.D student, Wood and Paper Science & Technology Department, Islamic Azad University , Science& Research Campus of Tehran,
2Associate Professor, Wood and Paper Science & Technology Department College of Natural Resources University of Tehran, Iran
3Assistant Professor; Wood and Paper Science & Technology Department College of Natural Resources University of Tehran, Iran
4M.Sc. Student, Wood and Paper Science & Technology, University of Tarbiat Modares, Iran
Abstract
A fundamental study was carried out to explore the canola stalks properties in order to increase the use of abundant agricultural residuals in pulp and paper production. In this study, the morphological, chemical composition and soda pulping properties of Canola stalks were investigated. The results showed that except the thicker cell wall, the morphological properties of Canola stalks fibers were comparable to those of nonwoods and hardwoods fibers. Chemical analysis indicated that Canola stalks contains lower amount of cellulose (44%), while the lignin, hemicelluloses and ash content of Canola stalks are comparable to other non-woods. In comparison with most of non wood fiber resources, soda pulping of Canola stalks required higher chemical charge and pulping time. Soda pulping of Canola stalks in 22% active alkaline and 100 min in max temperature produced pulp with 82.6% ISO of brightness The strength properties of bleached Canola stalks soda pulp include tensile index (Nm/g), burst index (kpam2/g) & tear index (mNm2/g) showed respectively 63.6, 2.22 & 4.9.
Keywords
Canola stalks; Soda pulping; bleaching; Non-wood fibers; ECF
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