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Artificial weathering of wood surfaces modified by melamine formaldehyde resins

  • Christian HansmannEmail author
  • Manabendra Deka
  • Rupert Wimmer
  • Wolfgang Gindl
ORIGINALARBEITEN ORIGINALS

Abstract

Spruce and poplar samples were treated with different melamine formaldehyde resins. A long term artificial weathering experiment was performed in order to clarify the resistance to weathering regarding wood colour and surface hardness. The increase in hardness due to melamine treatment was well preserved after simulated long term weathering. The treated samples also showed advantages compared to untreated reference samples regarding discolouration and crack formation. Low molar mass and low degree of methylolation of the melamine resin used was found to be favourable for a successful treatment.

Keywords

Weathering Melamine Surface Hardness Wood Surface Solid Wood 
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.

Künstliche Bewitterung von mit Melaminformaldehydharzen modifizierten Holzoberflächen

Zusammenfassung

Fichten- und Pappelproben wurden mit verschiedenen Melaminformaldehydharzen behandelt. Um die Widerstandsfähigkeit gegen Bewitterung hinsichtlich Holzfarbe und Oberflächenhärte zu klären, wurde ein Langzeit-Experiment mit künstlicher Bewitterung durchgeführt. Die Erhöhung der Härte auf Grund der Melaminbehandlung blieb auch nach der Langzeitbewitterung gut erhalten. Die behandelten Proben zeigten ausserdem Vorteile hinsichtlich Verfärbung und Rissbildung gegenüber unbehandelten Referenzproben. Geringe Molmasse und geringer Methylolierungsgrad des verwendeten Melaminharzes zeigten sich für eine erfolgreiche Behandlung von Vorteil.

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Christian Hansmann
    • 1
    • 2
    Email author
  • Manabendra Deka
    • 2
  • Rupert Wimmer
    • 1
    • 2
  • Wolfgang Gindl
    • 1
    • 2
  1. 1.Institute of Wood Science and Technology, Department of Material Sciences and Process EngineeringUniversity of Natural Resources and Applied Life Sciences ViennaViennaAustria
  2. 2.Competence Centre for Wood Composites and Wood ChemistryWOOD K PLUSLinzAustria

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