Effects of Modified Cooking on Fiber Wall Structure of E. globulus and E. nitens

作者: Rudine Antes , Olli Pekka Joutsimo

DOI: 10.15376/BIORES.10.2.2195-2212

关键词: Fiber saturation pointComposite materialAggregate (composite)FibrilKraft processEucalyptus nitensEucalyptus globulusFiberKappa numberMaterials science

摘要: This work examined the impact of SuperBatch™ (SB), CompactCooking™ (CC), and Lo-Solids™ (LS) modified kraft pulping on fiber wall structure unbleached bleached unrefined pulps E. globulus nitens. The kappa number target for all was 17 ± 0.5. It found that nitens had higher water retention values (WRVs) saturation point (FSP) both versus globulus. Fibril lateral aggregates width increased as WRV increased. After bleaching there an inverse trend in correlation fibril aggregate width. cooking methods or wood species did not have influence FSP were reflected cumulative pore volume measurements including widths below 216 nm.

参考文章(27)
G. J. F. Ring, A. J. Bacon, Multiple component analysis of fiber length distributions Tappi Journal. ,vol. 80, pp. 224- 231 ,(1997)
Zhenhai. Liu, T. Hatakeyama, Handbook of Thermal Analysis ,(1999)
Julius Pouchlý, Ján Biroš, Svatopluk Beneš, Heat capacities of water swollen hydrophilic polymers above and below 0°C Macromolecular Chemistry and Physics. ,vol. 180, pp. 745- 760 ,(1979) , 10.1002/MACP.1979.021800318
Olli P. Joutsimo, Sari Asikainen, Effect of Fiber Wall Pore Structure on Pulp Sheet Density of Softwood Kraft Pulp Fibers Bioresources. ,vol. 8, pp. 2719- 2737 ,(2013) , 10.15376/BIORES.8.2.2719-2737
Per Tomas Larsson, Kristina Wickholm, Tommy Iversen, A CP/MAS13C NMR investigation of molecular ordering in celluloses Carbohydrate Research. ,vol. 302, pp. 19- 25 ,(1997) , 10.1016/S0008-6215(97)00130-4
Mario Zauer, Alexander Pfriem, André Wagenführ, Toward improved understanding of the cell-wall density and porosity of wood determined by gas pycnometry Wood Science and Technology. ,vol. 47, pp. 1197- 1211 ,(2013) , 10.1007/S00226-013-0568-1
Thad C. Maloney, Hannu Paulapuro, Per. Stenius, Hydration and swelling of pulp fibers measured with differential scanning calorimetry Nordic Pulp & Paper Research Journal. ,vol. 13, pp. 31- 36 ,(1998) , 10.3183/NPPRJ-1998-13-01-P031-036