Wood Science and Technology

, Volume 48, Issue 1, pp 161–176 | Cite as

Wettability and liquid sorption of wood investigated by Wilhelmy plate method

  • Maziar Sedighi Moghaddam
  • Per M. Claesson
  • Magnus E. P. Wålinder
  • Agne Swerin


The wettability of Scots pine veneers was investigated with different approaches using the Wilhelmy plate method. The probe liquids were water and octane, which differ; in that, water is able to swell the wood sample, whereas octane does not. Novel approaches based on the Wilhelmy plate method to study wettability, liquid penetration, and swelling behavior of wood veneers are introduced. First, immersion to constant depth was performed, and liquid uptake with time was evaluated. Different kinetic regimes, the fastest one associated with contact angle changes and the slowest regime associated with liquid sorption by capillary and diffusion, were observed. Two other approaches, imbibition at constant depth (with initial deeper immersion) and full immersion, were utilized in order to keep the contact angle constant during measurements. Dynamic wettability studies were done by a multi-cycle (10–20 cycles) Wilhelmy method. Based on this, the time-dependent swelling of wood and changes in sample perimeter could be obtained. Generally, water showed higher absorption than octane. In all wettability studies, and for both probe liquids, the penetration process starts with a fast initial sorption, which is followed by swelling in the case of water.


Contact Angle Octane Wood Sample Wood Surface Dynamic Contact Angle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The Nils and Dorthi Tröedsson Foundation for Scientific Research is thanked for financial support within the sustainable wood modification PhD project and for the adjunct professorship at KTH for Agne Swerin.


  1. Ayrilmis N (2011) Effect of fire retardants on surface roughness and wettability of wood plastic composite panels. Bioresources 6(3):3178–3187Google Scholar
  2. Berg JC (1993) Wettability. Surfactant science series, vol 49. Marcel Dekker, New YorkGoogle Scholar
  3. Brugnara M, Volpe CD, Maniglio D, Siboni S, Negri M, Gaeti N (2006) Wettability of porous materials, I: the use of Wilhelmy experiment: the cases of stone, wood and non-woven fabric. Contact Angle Wettability Adhes 4:115–141Google Scholar
  4. Bryne LE, Wålinder MEP (2010) Ageing of modified wood. Part 1: wetting properties of acetylated, furfurylated, and thermally modified wood. Holzforschung 64(3):295–304Google Scholar
  5. Casilla RC, Chow S, Steiner PR (1981) An immersion technique for studying wood wettability. Wood Sci Technol 15(1):31–43CrossRefGoogle Scholar
  6. de Meijer M, Haemers S, Cobben W, Militz H (2000) Surface energy determinations of wood: comparison of methods and wood species. Langmuir 16(24):9352–9359CrossRefGoogle Scholar
  7. Englund F, Bryne LE, Ernstsson M, Lausmaa J, Wålinder M (2009) Spectroscopic studies of surface chemical composition and wettability of modified wood. Wood Mater Sci Eng 4(1–2):80–85CrossRefGoogle Scholar
  8. Garcia R, Cloutier A, Riedl B (2006) Chemical modification and wetting of medium density fibreboard panels produced from fibres treated with maleated polypropylene wax. Wood Sci Technol 40(5):402–416CrossRefGoogle Scholar
  9. Gardner DJ, Generalla NC, Gunnells DW, Wolcott MP (1991) Dynamic wettability of wood. Langmuir 7(11):2498–2502CrossRefGoogle Scholar
  10. Hakkou M, Pétrissans M, El Bakali I, Gérardin P, Zoulalian A (2005a) Wettability changes and mass loss during heat treatment of wood. Holzforschung 59(1):35–37CrossRefGoogle Scholar
  11. Hakkou M, Pétrissans M, Zoulalian A, Gérardin P (2005b) Investigation of wood wettability changes during heat treatment on the basis of chemical analysis. Polym Degrad Stab 89(1):1–5CrossRefGoogle Scholar
  12. Hoffman RL (1975) A study of the advancing interface. I. Interface shape in liquid—gas systems. J Colloid Interface Sci 50(2):228–241CrossRefGoogle Scholar
  13. Klungness JH (1981) Measuring the wetting angle and perimeter of single wood pulp fibers: a modified method. Tappi 64(12):65–66Google Scholar
  14. Liptáková E, Kúdela J (1994) Analysis of the wood wetting process. Holzforschung 48(2):139–144CrossRefGoogle Scholar
  15. Lu JZ, Wu Q (2006) Surface characterization of chemically modified wood: dynamic wettability. Wood Fiber Sci 38(3):497–511Google Scholar
  16. Mantanis GI, Young RA (1997) Wetting of wood. Wood Sci Technol 31(5):339–353Google Scholar
  17. Mohammed-Ziegler I, Hórvölgyi Z, Tóth A, Forsling W, Holmgren A (2006) Wettability and spectroscopic characterization of silylated wood samples. Polym Adv Technol 17(11–12):932–939CrossRefGoogle Scholar
  18. Neumann AW, Good RJ (1979) Chapter 2. Techniques of measuring contact angles. In: Good RJ, Stromberg RR (eds) Surface and colloid science volume II. Plenum Press, New York, pp 47–51Google Scholar
  19. Nussbaum RM, Sterley M (2002) The effect of wood extractive content on glue adhesion and surface wettability of wood. Wood Fiber Sci 34(1):57–71Google Scholar
  20. Petrič M, Knehtl B, Krause A, Militz H, Pavlič M, Pétrissans M, Rapp A, Tomažič M, Welzbacher C, Gérardin P (2007) Wettability of waterborne coatings on chemically and thermally modified pine wood. J Coat Technol Res 4(2):203–206CrossRefGoogle Scholar
  21. Pétrissans M, Gérardin P, El Bakali I, Serraj M (2003) Wettability of heat-treated wood. Holzforschung 57(3):301–307CrossRefGoogle Scholar
  22. Shen Q, Nylund J, Rosenholm JB (1998) Estimation of the surface energy and acid-base properties of wood by means of wetting method. Holzforschung 52(5):521–529CrossRefGoogle Scholar
  23. Shupe TE, Hse CY, Choong ET, Groom LH (1998) Effect of wood grain and veneer side on loblolly pine. For Prod J 48(6):95Google Scholar
  24. Sinn G, Sandak J, Ramananantoandro T (2009) Properties of wood surfaces—characterisation and measurement. A review. COST Action E35 2004–2008: wood machining—micromechanics and fracture. Holzforschung 63(2):196–203CrossRefGoogle Scholar
  25. Son J, Gardner DJ (2004) Dimensional stability measurements of thin wood veneers using the Wilhelmy plate technique. Wood Fiber Sci 36(1):98–106Google Scholar
  26. Tretinnikov ON, Ikada Y (1994) Dynamic wetting and contact angle hysteresis of polymer surfaces studied with the modified Wilhelmy balance method. Langmuir 10(5):1606–1614CrossRefGoogle Scholar
  27. Volpe CD, Fambri L, Siboni S, Brugnara M (2010) Wettability of porous materials III: Is the Wilhelmy method useful for fabrics analysis? J Adhes Sci Technol 24(1):149–169CrossRefGoogle Scholar
  28. Wålinder MEP (2002) Study of lewis acid-base properties of wood by contact angle analysis. Holzforschung 56(4):363–371CrossRefGoogle Scholar
  29. Wålinder MEP, Johansson I (2001) Measurement of wood wettability by the Wilhelmy method. Part 1. Contamination of probe liquids by extractives. Holzforschung 55(1):21–32CrossRefGoogle Scholar
  30. Wålinder MEP, Ström G (2001) Measurement of wood wettability by the Wilhelmy method. Part 2. Determination of apparent contact angles. Holzforschung 55(1):33–41CrossRefGoogle Scholar
  31. Wang S, Zhang Y, Xing C (2007) Effect of drying method on the surface wettability of wood strands. Eur J Wood Prod 65(6):437–442CrossRefGoogle Scholar
  32. Wilhelmy J (1863) Über die Abhängigkeit der Kapillaritäts-Konstanten des Alkohols von Substanz und Gestalt des benetzten festen Körpers. Ann Physik 119:177–217CrossRefGoogle Scholar
  33. Winfield PH, Harris AF, Hutchinson AR (2001) The use of flame ionisation technology to improve the wettability and adhesion properties of wood. Int J Adhes Adhes 21(2):107–114CrossRefGoogle Scholar
  34. Xie X, Morrow NR (2000) Contact angles on quartz induced by adsorption of heteropolar hydrocarbons. In: Drelich J, Laskowski JS, Mittal KL (eds) Apparent and microscopic contact angles. VSP BV, The Netherlands, pp 129–145Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Maziar Sedighi Moghaddam
    • 1
  • Per M. Claesson
    • 1
    • 2
  • Magnus E. P. Wålinder
    • 3
    • 4
  • Agne Swerin
    • 1
    • 2
  1. 1.SP Technical Research Institute of Sweden, Chemistry, Materials and SurfacesStockholmSweden
  2. 2.Department of Chemistry, Surface and Corrosion Science, School of Chemical Science and EngineeringKTH Royal Institute of TechnologyStockholmSweden
  3. 3.Department of Civil and Architectural Engineering, Building Materials, School of Architecture and the Built EnvironmentKTH Royal Institute of TechnologyStockholmSweden
  4. 4.SP Technical Research Institute of Sweden, Wood TechnologyStockholmSweden

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