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Decrease of pressing temperature and adhesive content by metallic ion catalysis in tannin-bonded particleboard

Reduzierung von Preßtemperatur und Klebstoffmenge durch Metallionen-Katalysatoren bei der Herstellung Tanningebundener Spanplatten

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Abstract

The use of bivalent metallic ion catalysts such as zinc acetate in wattle tannin adhesives for exterior grade particleboard results in the attainment of better board properties at lower pressing temperatures without any lengthening of the pressing time of the board. Lower pressing temperatures achieved in this manner also allow a reduction in the percentage resin solids in the board. There are indications that the same effect is present when using synthetic phenol-formaldehyde resins.

Zusammenfassung

Bei der Verwendung von Katalysatoren mit zweiwertigen Metallionen, wie z. B. Zinkacetat, in Wattle-Tannin-Klebstoffen für Spanplatten mit Außenbeständigkeit ergeben sich bessere Platteneigenschaften bei niedrigeren Preßtemperaturen und ohne jede Verlängerung der Preßzeit. Durch die niedrigeren Preßtemperaturen wird ferner eine Verringerung des Festharzanteils in der Platte erreicht. Es gibt Anzeichen dafür, daß der gleiche Effekt bei der Verwendung von synthetischen Phenol-Formaldehydharzen eintritt.

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Literature

  • Pizzi, A. 1978a: Unpublished

  • Pizzi, A. 1978b: Wattle-based adhesives for particleboard. Forest Prod. J. 28 (12): 42–47

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  • Pizzi, A., 1979: Phenolic and Tannin-based Adhesive Resins by Reactions of Coordinated Metal Ligands. I. Phenolic Chelates, Journal of Applied Polymer Science, Vol. (24): 1247–1255 II. Tannin Adhesive Preparation, Characteristics and Applications, Journal of Applied Polymer Science, Vol. (24): 1257–1268

    Article  CAS  Google Scholar 

  • Sundin, B., 1979: Practical experiences in the production of resins of low formaldehyde content. Particleboard today and tomorrow. Stuttgart: DRW-Verlag; pp. 112–120

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  • Deutsches Institut für Normung 1973: DIN 68 761 Spanplatten; Flachpreßplatten FPY für allgemeine Zwecke; Begriffe, Eigenschaften, Prüfung

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Authors and Affiliations

  1. National Timber Research Institute, Council for Scientific and Industrial Research, Pretoria, Republic of South Africa

    A. Pizzi & F. A. Cameron

Authors
  1. A. Pizzi
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  2. F. A. Cameron
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Pizzi, A., Cameron, F.A. Decrease of pressing temperature and adhesive content by metallic ion catalysis in tannin-bonded particleboard. Holz als Roh-und Werkstoff 39, 463–467 (1981). https://doi.org/10.1007/BF02606463

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  • DOI: https://doi.org/10.1007/BF02606463

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