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A novel method for monitoring real-time curing behaviour

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Abstract

A new method for monitoring real-time curing behaviour of adhesives by means of a rheometer is presented. This method was developed within a study to characterize the curing behaviour of MUF adhesives on beech and ash, both with and without coloured heartwood, as well as on Douglas fir and spruce. During closed assembly time, the decrease in a predefined adhesive layer, caused by the penetration of adhesive and solvents into the wood, can be monitored. Furthermore, the progress of curing can be determined and assessed after predefined closed assembly times. The maximum tensile force and the dissipated energy required for separating assembled adherends allow for characterizing hardening of adhesive systems. First results suggest that this is a promising method contributing to a better understanding of the curing process and how it is influenced by wood species.

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Authors and Affiliations

  1. Lehrstuhl für Holzkunde und Holztechnik der TU München, Holzforschung München, Winzererstr. 45, 80797, München, Germany

    Michael Schmidt

  2. Fachgebiet für Holztechnologie der TU München, Holzforschung München, Winzererstr. 45, 80797, München, Germany

    Markus Knorz

  3. Student in Forest Science and Resource Management, TU München, München, Germany

    Barbara Wilmes

Authors
  1. Michael Schmidt
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  2. Markus Knorz
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  3. Barbara Wilmes
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Corresponding author

Correspondence to Michael Schmidt.

Additional information

This article is dedicated to Gerd Wegener on the occasion of his retirement as professor at the Technische Universität München.

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Schmidt, M., Knorz, M. & Wilmes, B. A novel method for monitoring real-time curing behaviour. Wood Sci Technol 44, 407–420 (2010). https://doi.org/10.1007/s00226-010-0359-x

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  • DOI: https://doi.org/10.1007/s00226-010-0359-x

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