Related Links
Effect of beating time on properties of soda and monoethanolamine pulp from wheat straw | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 9, Volume 32, Issue 1 - Serial Number 58, April 2017, Pages 94-105 PDF (242.17 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2017.107118 | ||
| Authors | ||
| Mohammad Ahmadi* 1; Sahab Hejazi2; Kamiar Salehi3 | ||
| 1Assistant Prof, Wood and paper science and technology, College of Natural Resources, University of MohagheghArdabili, Ardabil, Iran | ||
| 2Associate Professor. Faculty of Natural Resources. University of Tehran. Iran | ||
| 3M.Sc., Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran | ||
| Abstract | ||
| In this study, the effect of beating time on morphologic, physical and strength properties of soda and monoethanolamine pulps obtained from wheat straw was studied, in order to optimize the time for beating operation. Beating of the pulps was applied in different time by laboratory jokromill beater. The results showed that rising time of beating leads to increasing the freeness (SR) of pulps and monoethanolamine pulp reached to maximum amount of freeness (SR) in less time as compared to soda pulp. In addition, it is found that monoethanolamin pulp obtained the maximum amount of tensile index (91.3 N.m/g) after 30 min beating time and after that longer time of beating process had no significant effect on increasing the tensile index. About soda pulp it is observed that tensile index was increased significantly by rising the time of beating process and for this kind of pulp, maximum amount of tensile index (87.7N.m/g) was obtained in 50 min beating process. The highest burst index for soda pulp was 5 Kp.m2 which was obtained by 50 min beating process. About mono ethanolamine pulp burst index increased by rising time of beating Process and reached to its maximum amount (5.6 Kp.m2) and after that its amount decreased. Rising the time of beating process led to decreasing the tear index in both of kinds of pulp consist of monoethanolamin and soda pulp. The results showed that mono ethanolamine pulp had the higher yield and better beating ability in comparison with soda pulp which can be caused by better ability for carbohydrates and minerals retaining in monoethanolamin pulp. | ||
| Keywords | ||
| beating; WHEAT STRAW; monoethanolamine; jokromill; PHYSICAL AND MECHANICAL PROPERTIES | ||
| References | ||
|
-Atchinson, J.E., 1995. Non-wood fiber could play major role in future US papermaking furnishes. Journal of Pulp and Paper, 70 (7): 125–131. -Atchinson, J.E., 1996. Twenty-five years of global progress in nonwood plant fiber repulping. TAPPI J, 79 (10): 87–97. -Atchison, J., 1998. Update on global use of non-wood plant fibers and some prospects for their greater use in the United States, In: Proceedings of the North American Non-wood Fiber Symposium,atlanta,Georgia, 4-6 September, Tappi Press. -Andalibian, M.A., Mahdavi, S., Kermanian, H. and Ramezani, O., 2013. The influence of OCC pulp refining to improve the properties of test liner board. Iranian Journal of Wood and Paper Science Research, 28 (1): 139-152. -Bhardwaj, N. K., Hoang, V. and Nguyen, K. L., 2007. A comparative study of the effect of refining on physical and electrokinetic properties of various cellulosic fibres. Bioresource Technology Journal, 98(8): 1647–1654. -Chuiko,V., Chupka, L. and Nnikitin,V., 1974. Change in lignin during cooking with monoethanolamine. Khimiya I tekhnol. Tsellyulozy , 13(1): 34-36. -Green, J. and Sanyer, N., 1982.Alkaline pulping in aqueous alcohols and amines. TAPPI J, 5: 133-137. -HedjaziS., Kordsachia,O., R. Patt. and kriepl, A., 2009. MEA/water/AQ-pulping of wheat straw. Holzforschung, 63(5): 505–512. -Hedjazi,S., Heidari Adli,A., Jahan Latibari,A., Hmazeh,Y., O.kordsachia. and Ahmadi,M., 2011. Ethanolamine Pulping- As A Novel Opportunity to Overcome Rice Straw Pulping Challenges. Proceedings of the 16th ISWFPC. China, Beijing, 4-6 May: 78-83. -Kevin, A., Truner, P. and Malier, R., 2000. The impact of refining index on the wood, pulp and paper properties of Eucalyptus Grandis clone, In: Proceedings of International Conference of Paptac, Montreal, Canada, 31 March: 493-502. -Kord,B., 2009. Effect of Refining Intensity on Pulp and Paper Properties Made of Eucalyptus Camaldulensis Wood. Iranian Journal of Wood and Paper Science Research, 24 (1): 125-133. -Reme, A.P., 2000. Fiber dimension during defibration and fiber development, In: Proceedings of International Conference of Paptac, Canada, Montreal, 31 March: 480-486. -Sarwar Jahan M., 2008. Process for production of dissolving pulp from terma orientalis by prehydrolysis kraft. Bio resources Journal, 3: 33-38. -Shiralizadeh F., Hedjazi S. and Ahmadi M., 2015. Evaluation of pulp properties produced from rice straw by combination the monoethanolamine and potassium hydroxide. Iranian Journal of Wood and Paper Science Research, 30 (1): 46-59. -Talaeipour, M., 2009. Effect of refining of deinked pulp on the optical, physical and mechanical properties of paper. Iranian Journal of Wood and Paper Science Research, 2 :34-36. | ||
|
Statistics Article View: 777 PDF Download: 546 |
||
Journal management system. designed by sinaweb