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TG-DTA study of melamine-urea-formaldehyde resins

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Abstract

The thermal behaviour of MUF resins from different suppliers with different content of melamine was studied, along with the 13C NMR spectroscopic analysis of resin structure and the testing of particleboards in current production at Estonian PB factory Pärnu Plaaditehas AS. The chemical structure of resins from DMSO-d6 solutions was analysed by 13C NMR spectroscopy on a Bruker AMX500 NMR spectrometer. The melamine level in different MUF resins is compared by the ratios of carbonyl carbon of urea and triazine carbon of melamine in 13C NMR spectra. Curing behaviour of MUF resins was studied by stimultaneous TG-DTA techniques on the Labsys™ instrument Setaram. The shape of DTA curves characterisises the resin synthesis procedure by the extent of polymerisation of UF and MF components and is in accordance with structural data.

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Authors and Affiliations

  1. Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia

    K. Siimer, P. Christjanson & T. Kaljuvee

  2. National Institute of Chemical and Biological Physics, Akadeemia tee 23, 12618, Tallinn, Estonia

    T. Pehk

  3. Pärnu Plaaditehas AS, Savi 12, 80041, Pärnu, Estonia

    I. Lasn

  4. VKG Resins AS, Järveküla tee 14, 30328, Kohtla-Järve, Estonia

    I. Saks

Authors
  1. K. Siimer
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  2. P. Christjanson
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  3. T. Kaljuvee
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  4. T. Pehk
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  5. I. Lasn
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  6. I. Saks
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Correspondence to K. Siimer.

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Siimer, K., Christjanson, P., Kaljuvee, T. et al. TG-DTA study of melamine-urea-formaldehyde resins. J Therm Anal Calorim 92, 19–27 (2008). https://doi.org/10.1007/s10973-007-8721-4

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  • DOI: https://doi.org/10.1007/s10973-007-8721-4

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