Improved surface properties of CTMP fibers with enzymatic pretreatment of wood chips prior to refining

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• 作者：Xiaochun Lei (1) (2)
  Yu Zhao (1) (3)
  Kecheng Li (1)
  Andre Pelletier (1)
  
• 关键词：Fiber separation ; TEM ; FE ; SEM ; XPS ; Xylanase
• 刊名：Cellulose
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：19
• 期：6
• 页码：2205-2215
• 全文大小：1059KB
• 参考文献：1. Akhtar M, Attridge MC, Myers GC, Blanchette RA (1993) Biomechanical pulping of loblolly pine chips with selected white-rot fungi. Holzforschung 47(1):36鈥?0 CrossRef
  2. B枚r氓s L, Gatenholm P (1999) Surface composition and morphology of CTMP fibers. Holzforschung 53(2):188鈥?94 CrossRef
  3. Connell E, Cockram R (2000) The future of BCTMP. Pulp and Paper 74(5):61鈥?0
  4. Corson SR (1989) Aspects of mechanical pulp fiber separation and development in a disk refiner. International mechanical pulping conference, EUCEPA, June 6鈥?, Helsinki, Book 2, pp. 303鈥?19
  5. Forseth T, Wiik K, Helle T (1997) Surface roughening mechanisms for printing paper containing mechanical pulp. Nord Pulp Pap Res J 12(1):67鈥?1 CrossRef
  6. Glauert AM (1975) Fixation, dehydration, and embedding of biological specimens. North-Holland publishing company, Amsterdam, the Netherlands pp 207
  7. Gustafsson J, Ciovica L, Peltonen J (2003) The ultrastructure of spruce kraft pulps studied by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Polymer 44(3):661鈥?70 CrossRef
  8. Karnis A (1993) The mechanism of fibre development in mechanical pulping. International mechanical pulping conference, EUCEPA, June 15鈥?7, Oslo, pp. 268鈥?89
  9. Koljonen K, 脰sterberg M, Johansson LS, Stenius P (2003) Surface chemistry and morphology of different mechanical pulps determined by ESCA and AFM. Colloids Surf A 228(1鈥?):143鈥?58 CrossRef
  10. Kure KA (1997) The alteration of the wood fibers in refining. International mechanical pulping conference proceedings, SPCI, Stockholm, 137鈥?50
  11. Leatham GF, Myers GC, Wegner TH (1990) Biomechanical pulping of aspen chips: paper strength and optical properties resulting from different fungal treatments. Tappi J 73(3):249鈥?55
  12. Lei X, Lin L, Li K (2008) Effect of xylanase of pretreatment of wood chips on fiber separation in the CTMP refining process. Bioresources 3(3):801鈥?15
  13. Li K, Reeve DW (2002) The origins of kraft wood fibre surface lignin. J Pulp Pap Sci 28(11):369鈥?73
  14. Li K, Reeve DW (2004) Determination of surface lignin of wood pulp fibres by X-ray photoelectron spectroscopy. Cellul Chem Techno 38(3鈥?):197鈥?10
  15. Li K, Tan X, Yan D (2006) The middle lamella remainders on the surface of various mechanical pulp fibers. Surf Interface Anal 38(10):1328鈥?335 CrossRef
  16. Marton R, Goff S, Brown AF, Granzow S (1979) Hardwood TMP and RMP modifications. Tappi J 62(1):49鈥?3
  17. May WD (1973) A theory of chip refining鈥攖he origin of fibre length. Pulp Paper Mag Can 74(1):70鈥?8
  18. Miles KB, May WD, Karnis A (1991) Refining intensity, energy consumption, and pulp quality in two-stage chip refining. Tappi J 74(3):221鈥?30
  19. Miller GL (1959) Use of dinitrosalicylic acid reagent for determination of reducing sugar. Anal Chem 31(3):426鈥?28 CrossRef
  20. Neill MT, Beath LR (1963) Supergroundwood: its manufacture from chips and use as sole newsprint furnish. Pulp Paper Mag Can 64(7):T-299鈥揟-312
  21. Stationwala ML, Karnis A (1990) Pulp grinding鈥攁 new method for producing mechanical pulp. Tappi J 73(12):187鈥?95
  22. Yang Q, Zhan H, Wang S, Fu S, Li K (2007) Bio-modification of eucalyptus chemithermo-mechanical pulp with different white-rot fungi. Bioresources 2(4):682鈥?92
  23. Yang Q, Zhan H, Wang S, Fu S, Li K (2008) Modification of eucalyptus CTMP fibres with white-rot fungus trametes hirsute鈥攅ffects on fibre morphology and paper physical strengths. Bioresour Technol 99:8118鈥?124 CrossRef
  24. Zhou Y (2004) Overview of high yield pulps (BCTMP) in paper and board. PAPTAC 90th annual meeting, Montreal, Quebec, Canada, January 27-29, B1429-B1434
  
• 作者单位：Xiaochun Lei (1) (2)
  Yu Zhao (1) (3)
  Kecheng Li (1)
  Andre Pelletier (1)
  
  1. Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, E3B 6C2, Canada
  2. Department of Printing Engineering, Hangzhou Dianzi University, Hangzhou, 310018, Zhejiang, China
  3. Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
  
• ISSN：1572-882X

文摘

Surface properties of chemithermomechanical pulp (CTMP) fibers produced from enzymatically pretreated eucalyptus wood chips prior to refining were investigated by Field Emission Scanning Electron Microscope (FE-SEM), Transmission Electron Microscope (TEM) and X-ray Photoelectron Spectroscopy (XPS). The results showed that in a traditional CTMP refining process most fiber disruptions occur in the middle lamella (ML) leaving behind a significant amount of hydrophobic materials on the resulting fiber surface. However, in a Bio-CTMP refining process, fiber fractures preferentially take place in the primary (P) and secondary 1 (S1) layers or the S1 and secondary 2 (S2) layers, which results in more fibrillation being generated in the subsequent refining thus improving inter-fiber bonding strength and paper strength. XPS chemical composition analysis together with pulp physical strength property showed that the surfaces of Bio-CTMP fibers become enriched with a greater proportion of carbohydrates in comparison with CTMP fiber surface, which supports FE-SEM and TEM observations.